The name of this superfamily has been modified since the most recent official CATH+ release (v4_2_0). At the point of the last release, this superfamily was named:

"
Toll/interleukin-1 receptor homology (TIR) domain
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 4407: Interleukin-1 receptor type 1

Please note: GO annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

There are 34 GO terms relating to "molecular function"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Protein binding GO:0005515
Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
10 P13504 (/IPI) P14719 (/IPI) P14778 (/IPI) P59823 (/IPI) Q01638 (/IPI) Q02955 (/IPI) Q13478 (/IPI) Q61098 (/IPI) Q61730 (/IPI) Q9NZN1 (/IPI)
Voltage-gated calcium channel activity GO:0005245
Enables the transmembrane transfer of a calcium ion by a voltage-gated channel. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded.
4 P59823 (/ISS) P60029 (/ISS) Q7YQL9 (/ISS) Q9NZN1 (/ISS)
Interleukin-1 receptor activity GO:0004908
Combining with interleukin-1 to initiate a change in cell activity. Interleukin-1 is produced mainly by activated macrophages and is involved in the inflammatory response.
3 P13504 (/IDA) P14778 (/IDA) Q61730 (/IDA)
Interleukin-1 receptor activity GO:0004908
Combining with interleukin-1 to initiate a change in cell activity. Interleukin-1 is produced mainly by activated macrophages and is involved in the inflammatory response.
3 P14778 (/TAS) Q9HB29 (/TAS) Q9NP60 (/TAS)
Signal transducer activity GO:0004871
Conveys a signal across a cell to trigger a change in cell function or state. A signal is a physical entity or change in state that is used to transfer information in order to trigger a response.
2 P13504 (/IDA) Q61730 (/IDA)
Signal transducer activity GO:0004871
Conveys a signal across a cell to trigger a change in cell function or state. A signal is a physical entity or change in state that is used to transfer information in order to trigger a response.
2 P14778 (/TAS) Q9NPH3 (/TAS)
Receptor activity GO:0004872
Combining with an extracellular or intracellular messenger to initiate a change in cell activity.
2 O95256 (/TAS) Q13478 (/TAS)
Protease binding GO:0002020
Interacting selectively and non-covalently with any protease or peptidase.
1 P13504 (/IPI)
Interleukin-33 binding GO:0002113
Interacting selectively and non-covalently with interleukin-33.
1 P14719 (/IPI)
Interleukin-33 receptor activity GO:0002114
Combining with interleukin-33 and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity.
1 Q61730 (/IMP)
Interleukin-33 receptor activity GO:0002114
Combining with interleukin-33 and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity.
1 P14719 (/IPI)
Transmembrane signaling receptor activity GO:0004888
Combining with an extracellular or intracellular signal and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity or state as part of signal transduction.
1 P14778 (/TAS)
Cytokine receptor activity GO:0004896
Combining with a cytokine and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity.
1 Q9ERS7 (/ISS)
Cytokine receptor activity GO:0004896
Combining with a cytokine and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity.
1 Q01638 (/TAS)
Interleukin-1 receptor activity GO:0004908
Combining with interleukin-1 to initiate a change in cell activity. Interleukin-1 is produced mainly by activated macrophages and is involved in the inflammatory response.
1 P13504 (/IMP)
Interleukin-1 receptor activity GO:0004908
Combining with interleukin-1 to initiate a change in cell activity. Interleukin-1 is produced mainly by activated macrophages and is involved in the inflammatory response.
1 P13504 (/ISO)
Interleukin-1, Type I, activating receptor activity GO:0004909
Combining with interleukin-1 to initiate a change in cell activity via signaling pathways and mediated by adaptor proteins.
1 P14778 (/TAS)
Signal transducer activity, downstream of receptor GO:0005057
Conveys a signal from an upstream receptor or intracellular signal transducer, converting the signal into a form where it can ultimately trigger a change in the state or activity of a cell.
1 Q01638 (/TAS)
Receptor binding GO:0005102
Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
1 P59823 (/IPI)
Receptor binding GO:0005102
Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
1 Q9NZN1 (/ISS)
Interleukin-1 receptor binding GO:0005149
Interacting selectively and non-covalently with the interleukin-1 receptor.
1 Q63621 (/IPI)
Interleukin-1 receptor binding GO:0005149
Interacting selectively and non-covalently with the interleukin-1 receptor.
1 Q63621 (/TAS)
Interleukin-1, Type I receptor binding GO:0005150
Interacting selectively and non-covalently with a Type I interleukin-1 receptor.
1 Q70YG5 (/IPI)
Interleukin-1, Type I receptor binding GO:0005150
Interacting selectively and non-covalently with a Type I interleukin-1 receptor.
1 A0A060WD93 (/ISS)
Platelet-derived growth factor receptor binding GO:0005161
Interacting selectively and non-covalently with the platelet-derived growth factor receptor.
1 P14778 (/IPI)
Platelet-derived growth factor receptor binding GO:0005161
Interacting selectively and non-covalently with the platelet-derived growth factor receptor.
1 P13504 (/ISO)
Voltage-gated calcium channel activity GO:0005245
Enables the transmembrane transfer of a calcium ion by a voltage-gated channel. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded.
1 P59824 (/IDA)
Interleukin-1 binding GO:0019966
Interacting selectively and non-covalently with interleukin-1.
1 P13504 (/IPI)
Interleukin-1 binding GO:0019966
Interacting selectively and non-covalently with interleukin-1.
1 Q63621 (/TAS)
Protein binding, bridging GO:0030674
The binding activity of a molecule that brings together two or more protein molecules, or a protein and another macromolecule or complex, through a selective, non-covalent, often stoichiometric interaction, permitting those molecules to function in a coordinated way.
1 Q63621 (/TAS)
Ionotropic glutamate receptor binding GO:0035255
Interacting selectively and non-covalently with an ionotropic glutamate receptor. Ionotropic glutamate receptors bind glutamate and exert an effect through the regulation of ion channels.
1 Q02955 (/IPI)
Interleukin-18 binding GO:0042007
Interacting selectively and non-covalently with interleukin-18.
1 A0A0G2K2K7 (/TAS)
Interleukin-18 receptor activity GO:0042008
Combining with interleukin-18 and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity.
1 Q61098 (/IMP)
Protein tyrosine kinase binding GO:1990782
Interacting selectively and non-covalently with protein tyrosine kinase.
1 Q61730 (/IPI)

There are 71 GO terms relating to "biological process"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Immune response GO:0006955
Any immune system process that functions in the calibrated response of an organism to a potential internal or invasive threat.
4 O95256 (/TAS) P14778 (/TAS) Q13478 (/TAS) Q9NPH3 (/TAS)
Regulation of neuron projection development GO:0010975
Any process that modulates the rate, frequency or extent of neuron projection development. Neuron projection development is the process whose specific outcome is the progression of a neuron projection over time, from its formation to the mature structure. A neuron projection is any process extending from a neural cell, such as axons or dendrites (collectively called neurites).
4 P59823 (/ISS) P60029 (/ISS) Q7YQL9 (/ISS) Q9NZN1 (/ISS)
Signal transduction GO:0007165
The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
3 Q01638 (/TAS) Q13478 (/TAS) Q9HB29 (/TAS)
Negative regulation of exocytosis GO:0045920
Any process that stops, prevents, or reduces the frequency, rate or extent of exocytosis.
3 P59823 (/ISS) P60029 (/ISS) Q7YQL9 (/ISS)
Inflammatory response GO:0006954
The immediate defensive reaction (by vertebrate tissue) to infection or injury caused by chemical or physical agents. The process is characterized by local vasodilation, extravasation of plasma into intercellular spaces and accumulation of white blood cells and macrophages.
2 O95256 (/TAS) Q9NPH3 (/TAS)
Cell surface receptor signaling pathway GO:0007166
A series of molecular signals initiated by activation of a receptor on the surface of a cell. The pathway begins with binding of an extracellular ligand to a cell surface receptor, or for receptors that signal in the absence of a ligand, by ligand-withdrawal or the activity of a constitutively active receptor. The pathway ends with regulation of a downstream cellular process, e.g. transcription.
2 O95256 (/TAS) P14778 (/TAS)
Cytokine-mediated signaling pathway GO:0019221
A series of molecular signals initiated by the binding of a cytokine to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription.
2 P13504 (/IDA) Q61730 (/IDA)
Negative regulation of exocytosis GO:0045920
Any process that stops, prevents, or reduces the frequency, rate or extent of exocytosis.
2 P59824 (/IDA) Q9NZN1 (/IDA)
Regulation of inflammatory response GO:0050727
Any process that modulates the frequency, rate or extent of the inflammatory response, the immediate defensive reaction (by vertebrate tissue) to infection or injury caused by chemical or physical agents.
2 P13504 (/IMP) Q9ERS7 (/IMP)
Negative regulation of T-helper 1 type immune response GO:0002826
Any process that stops, prevents, or reduces the frequency, rate, or extent of a T-helper 1 type immune response.
1 P14719 (/IGI)
Protein complex assembly GO:0006461
The aggregation, arrangement and bonding together of a set of components to form a protein complex.
1 Q9NPH3 (/TAS)
Immune response GO:0006955
Any immune system process that functions in the calibrated response of an organism to a potential internal or invasive threat.
1 Q01638 (/NAS)
Cellular defense response GO:0006968
A defense response that is mediated by cells.
1 Q9HB29 (/TAS)
Heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules GO:0007157
The attachment of an adhesion molecule in one cell to a nonidentical adhesion molecule in an adjacent cell.
1 P59823 (/IDA)
Heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules GO:0007157
The attachment of an adhesion molecule in one cell to a nonidentical adhesion molecule in an adjacent cell.
1 Q9NZN1 (/ISS)
Central nervous system development GO:0007417
The process whose specific outcome is the progression of the central nervous system over time, from its formation to the mature structure. The central nervous system is the core nervous system that serves an integrating and coordinating function. In vertebrates it consists of the brain and spinal cord. In those invertebrates with a central nervous system it typically consists of a brain, cerebral ganglia and a nerve cord.
1 Q9NP60 (/TAS)
Negative regulation of cell proliferation GO:0008285
Any process that stops, prevents or reduces the rate or extent of cell proliferation.
1 Q62611 (/IDA)
Response to radiation GO:0009314
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an electromagnetic radiation stimulus. Electromagnetic radiation is a propagating wave in space with electric and magnetic components. These components oscillate at right angles to each other and to the direction of propagation.
1 Q02955 (/IMP)
Heat acclimation GO:0010286
Any process that increases heat tolerance of an organism in response to high temperatures.
1 Q02955 (/IMP)
Regulation of neuron projection development GO:0010975
Any process that modulates the rate, frequency or extent of neuron projection development. Neuron projection development is the process whose specific outcome is the progression of a neuron projection over time, from its formation to the mature structure. A neuron projection is any process extending from a neural cell, such as axons or dendrites (collectively called neurites).
1 P59824 (/IDA)
Neuron remodeling GO:0016322
The developmentally regulated remodeling of neuronal projections such as pruning to eliminate the extra dendrites and axons projections set up in early stages of nervous system development.
1 B6ZK77 (/IMP)
Natural killer cell activation GO:0030101
The change in morphology and behavior of a natural killer cell in response to a cytokine, chemokine, cellular ligand, or soluble factor.
1 Q61098 (/IMP)
Neuron differentiation GO:0030182
The process in which a relatively unspecialized cell acquires specialized features of a neuron.
1 P59823 (/IDA)
Neuron differentiation GO:0030182
The process in which a relatively unspecialized cell acquires specialized features of a neuron.
1 Q9NZN1 (/ISS)
Ovulation GO:0030728
The release of a mature ovum/oocyte from an ovary.
1 Q02955 (/IEP)
Negative regulation of interferon-gamma production GO:0032689
Any process that stops, prevents, or reduces the frequency, rate, or extent of interferon-gamma production. Interferon-gamma is also known as type II interferon.
1 P14719 (/IGI)
Positive regulation of interferon-gamma production GO:0032729
Any process that activates or increases the frequency, rate, or extent of interferon-gamma production. Interferon-gamma is also known as type II interferon.
1 Q61098 (/IMP)
Positive regulation of interleukin-13 production GO:0032736
Any process that activates or increases the frequency, rate, or extent of interleukin-13 production.
1 Q61730 (/IMP)
Positive regulation of interleukin-5 production GO:0032754
Any process that activates or increases the frequency, rate, or extent of interleukin-5 production.
1 P14719 (/IGI)
Positive regulation of interleukin-5 production GO:0032754
Any process that activates or increases the frequency, rate, or extent of interleukin-5 production.
1 Q61730 (/IMP)
Positive regulation of interleukin-6 production GO:0032755
Any process that activates or increases the frequency, rate, or extent of interleukin-6 production.
1 Q9ERS7 (/IGI)
Interleukin-18-mediated signaling pathway GO:0035655
A series of molecular signals initiated by the binding of interleukin-18 to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription.
1 Q61098 (/IMP)
Interleukin-33-mediated signaling pathway GO:0038172
A series of molecular signals initiated by the binding of interleukin-33 to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription.
1 Q61730 (/IMP)
Interleukin-2 biosynthetic process GO:0042094
The chemical reactions and pathways resulting in the formation of interleukin-2.
1 Q61730 (/IDA)
Positive regulation of NF-kappaB import into nucleus GO:0042346
Any process that activates or increases the frequency, rate or extent of transfer of NF-kappaB, a transcription factor for eukaryotic RNA polymerase II promoters, from the cytoplasm into the nucleus, across the nuclear membrane.
1 Q61098 (/IMP)
Positive regulation of macrophage activation GO:0043032
Any process that stimulates, induces or increases the rate of macrophage activation.
1 P14719 (/IMP)
Negative regulation of I-kappaB kinase/NF-kappaB signaling GO:0043124
Any process that stops, prevents, or reduces the frequency, rate or extent of -kappaB kinase/NF-kappaB signaling.
1 P14719 (/IDA)
T-helper 1 cell differentiation GO:0045063
The process in which a relatively unspecialized T cell acquires the specialized features of a T-helper 1 (Th1) cell. A Th1 cell is a CD4-positive, alpha-beta T cell that has the phenotype T-bet-positive and produces interferon-gamma.
1 Q61098 (/IMP)
Positive regulation of nitric oxide biosynthetic process GO:0045429
Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of nitric oxide.
1 Q90874 (/IEP)
Positive regulation of T cell differentiation GO:0045582
Any process that activates or increases the frequency, rate or extent of T cell differentiation.
1 Q9ERS7 (/IMP)
Negative regulation of exocytosis GO:0045920
Any process that stops, prevents, or reduces the frequency, rate or extent of exocytosis.
1 P59823 (/ISO)
Positive regulation of inflammatory response GO:0050729
Any process that activates or increases the frequency, rate or extent of the inflammatory response.
1 P14719 (/IMP)
Positive regulation of dendrite morphogenesis GO:0050775
Any process that activates or increases the frequency, rate or extent of dendrite morphogenesis.
1 P59823 (/IMP)
Positive regulation of dendrite morphogenesis GO:0050775
Any process that activates or increases the frequency, rate or extent of dendrite morphogenesis.
1 Q9NZN1 (/ISS)
Synapse organization GO:0050808
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a synapse, the junction between a neuron and a target (neuron, muscle, or secretory cell).
1 B6ZK77 (/IMP)
Positive regulation of nitric-oxide synthase activity GO:0051000
Any process that activates or increases the activity of the enzyme nitric-oxide synthase.
1 Q90874 (/IDA)
Positive regulation of NF-kappaB transcription factor activity GO:0051092
Any process that activates or increases the frequency, rate or extent of activity of the transcription factor NF-kappaB.
1 Q61730 (/IMP)
Positive regulation of synapse assembly GO:0051965
Any process that activates, maintains or increases the frequency, rate or extent of synapse assembly, the aggregation, arrangement and bonding together of a set of components to form a synapse.
1 Q61730 (/IDA)
Cellular response to hydrogen peroxide GO:0070301
Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a hydrogen peroxide (H2O2) stimulus.
1 A0A0G2K2K7 (/IEP)
Interleukin-1-mediated signaling pathway GO:0070498
A series of molecular signals initiated by the binding of interleukin-1 to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription.
1 P14778 (/IDA)
Interleukin-1-mediated signaling pathway GO:0070498
A series of molecular signals initiated by the binding of interleukin-1 to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription.
1 Q02955 (/IMP)
Interleukin-1-mediated signaling pathway GO:0070498
A series of molecular signals initiated by the binding of interleukin-1 to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription.
1 P13504 (/ISO)
Response to interleukin-1 GO:0070555
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an interleukin-1 stimulus.
1 P14778 (/IDA)
Response to interleukin-1 GO:0070555
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an interleukin-1 stimulus.
1 Q02955 (/IEP)
Response to interleukin-1 GO:0070555
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an interleukin-1 stimulus.
1 P13504 (/ISO)
Response to epidermal growth factor GO:0070849
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an epidermal growth factor stimulus.
1 Q02955 (/IEP)
Cellular response to glucose stimulus GO:0071333
Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a glucose stimulus.
1 Q02955 (/IEP)
Cellular response to cytokine stimulus GO:0071345
Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a cytokine stimulus.
1 A0A0G2K2K7 (/IEP)
Response to transforming growth factor beta GO:0071559
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a transforming growth factor beta stimulus.
1 Q02955 (/IEP)
Response to nitric oxide GO:0071731
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a nitric oxide stimulus.
1 Q02955 (/IEP)
Interleukin-4 secretion GO:0072602
The regulated release of interleukin-4 from a cell.
1 Q61730 (/IMP)
Positive regulation of chemokine secretion GO:0090197
Any process that increases the rate, frequency or extent of chemokine secretion, the regulated release of chemokines from a cell.
1 P14719 (/IMP)
Presynaptic membrane assembly GO:0097105
The aggregation, arrangement and bonding together of a set of components to form a presynaptic membrane, including any proteins associated with the membrane, but excluding other cellular components. A presynaptic membrane is a specialized area of membrane of the axon terminal that faces the plasma membrane of the neuron or muscle fiber with which the axon terminal establishes a synaptic junction.
1 P59823 (/IMP)
Presynaptic membrane assembly GO:0097105
The aggregation, arrangement and bonding together of a set of components to form a presynaptic membrane, including any proteins associated with the membrane, but excluding other cellular components. A presynaptic membrane is a specialized area of membrane of the axon terminal that faces the plasma membrane of the neuron or muscle fiber with which the axon terminal establishes a synaptic junction.
1 Q9NZN1 (/ISS)
Positive regulation of dendrite development GO:1900006
Any process that activates or increases the frequency, rate or extent of dendrite development.
1 Q61730 (/IDA)
Cellular response to peptide GO:1901653
Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a peptide stimulus.
1 Q62611 (/IEP)
Response to odorant GO:1990834
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an odorant stimulus. An odorant is any substance capable of stimulating the sense of smell.
1 Q02955 (/IEP)
Positive regulation of neutrophil extravasation GO:2000391
Any process that activates or increases the frequency, rate or extent of neutrophil extravasation.
1 P13504 (/IMP)
Positive regulation of interleukin-1-mediated signaling pathway GO:2000661
Any process that activates or increases the frequency, rate or extent of interleukin-1-mediated signaling pathway.
1 P13504 (/IMP)
Positive regulation of interleukin-6 secretion GO:2000778
Any process that activates or increases the frequency, rate or extent of interleukin-6 secretion.
1 Q61730 (/IMP)
Positive regulation of neuron migration GO:2001224
Any process that activates or increases the frequency, rate or extent of neuron migration.
1 Q02955 (/IMP)

There are 25 GO terms relating to "cellular component"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Plasma membrane GO:0005886
The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
9 O95256 (/TAS) P14719 (/TAS) P14778 (/TAS) Q01638 (/TAS) Q13478 (/TAS) Q61730 (/TAS) Q9HB29 (/TAS) Q9NP60 (/TAS) Q9NPH3 (/TAS)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
5 F1QE87 (/IDA) F1RCA7 (/IDA) P14719 (/IDA) P14778 (/IDA) Q9NPH3 (/IDA)
Plasma membrane GO:0005886
The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
4 P59823 (/ISS) P59824 (/ISS) P60029 (/ISS) Q7YQL9 (/ISS)
Cell surface GO:0009986
The external part of the cell wall and/or plasma membrane.
4 P13504 (/IDA) P59823 (/IDA) Q02955 (/IDA) Q62611 (/IDA)
Extracellular space GO:0005615
That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
3 Q02955 (/IDA) Q61730 (/IDA) Q62611 (/IDA)
Integral component of plasma membrane GO:0005887
The component of the plasma membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
3 P14778 (/TAS) Q9HB29 (/TAS) Q9NPH3 (/TAS)
External side of plasma membrane GO:0009897
The leaflet of the plasma membrane that faces away from the cytoplasm and any proteins embedded or anchored in it or attached to its surface.
2 P14719 (/IDA) Q62611 (/IDA)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
2 P13504 (/ISO) Q61730 (/ISO)
Intracellular membrane-bounded organelle GO:0043231
Organized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane and occurring within the cell. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane.
2 B8ZZW4 (/IDA) P14778 (/IDA)
Protein complex GO:0043234
A stable macromolecular complex composed (only) of two or more polypeptide subunits along with any covalently attached molecules (such as lipid anchors or oligosaccharide) or non-protein prosthetic groups (such as nucleotides or metal ions). Prosthetic group in this context refers to a tightly bound cofactor. The component polypeptide subunits may be identical.
2 Q02955 (/IDA) Q63621 (/IDA)
Postsynaptic membrane GO:0045211
A specialized area of membrane facing the presynaptic membrane on the tip of the nerve ending and separated from it by a minute cleft (the synaptic cleft). Neurotransmitters cross the synaptic cleft and transmit the signal to the postsynaptic membrane.
2 P59823 (/NAS) Q9NZN1 (/NAS)
Proteinaceous extracellular matrix GO:0005578
A layer consisting mainly of proteins (especially collagen) and glycosaminoglycans (mostly as proteoglycans) that forms a sheet underlying or overlying cells such as endothelial and epithelial cells. The proteins are secreted by cells in the vicinity. An example of this component is found in Mus musculus.
1 P14719 (/IDA)
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
1 Q02955 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q63621 (/IDA)
Plasma membrane GO:0005886
The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
1 Q9NZN1 (/IDA)
Plasma membrane GO:0005886
The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
1 P59823 (/ISO)
External side of plasma membrane GO:0009897
The leaflet of the plasma membrane that faces away from the cytoplasm and any proteins embedded or anchored in it or attached to its surface.
1 P14719 (/ISO)
Cell surface GO:0009986
The external part of the cell wall and/or plasma membrane.
1 Q9NZN1 (/ISS)
Postsynaptic density GO:0014069
An electron dense network of proteins within and adjacent to the postsynaptic membrane in asymetric synapses. Its major components include neurotransmitter receptors and the proteins that spatially and functionally organize them such as anchoring and scaffolding molecules, signaling enzymes and cytoskeletal components.
1 Q02955 (/IDA)
Axon GO:0030424
The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter.
1 Q02955 (/IDA)
Dendrite GO:0030425
A neuron projection that has a short, tapering, often branched, morphology, receives and integrates signals from other neurons or from sensory stimuli, and conducts a nerve impulse towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body.
1 P59823 (/IDA)
Dendrite GO:0030425
A neuron projection that has a short, tapering, often branched, morphology, receives and integrates signals from other neurons or from sensory stimuli, and conducts a nerve impulse towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body.
1 Q9NZN1 (/ISS)
Neuronal cell body GO:0043025
The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.
1 B6ZK77 (/IDA)
Intracellular membrane-bounded organelle GO:0043231
Organized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane and occurring within the cell. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane.
1 P13504 (/ISO)
Axon terminus GO:0043679
Terminal inflated portion of the axon, containing the specialized apparatus necessary to release neurotransmitters. The axon terminus is considered to be the whole region of thickening and the terminal button is a specialized region of it.
1 B6ZK77 (/IDA)