The name of this superfamily has been modified since the most recent official CATH+ release (v4_3_0). At the point of the last release, this superfamily was named:

"
Immunoglobulins
".

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.
« Back to all FunFams

FunFam 924: TAP binding protein

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 14 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).
7 O15533 (/IPI) O15533 (/IPI) O15533 (/IPI) O15533 (/IPI) Q99JC6 (/IPI) Q9R233 (/IPI) Q9R233 (/IPI)
TAP complex binding GO:0062061
Interacting selectively and non-covalently with a TAP complex.
5 O15533 (/IDA) O15533 (/IDA) O15533 (/IDA) O15533 (/IDA) Q99JC6 (/IDA)
ATPase-coupled peptide antigen transmembrane transporter activity GO:0015433
Catalysis of the reaction: peptide antigen(in) + ATP = peptide antigen(out) + ADP + phosphate.
4 O15533 (/TAS) O15533 (/TAS) O15533 (/TAS) O15533 (/TAS)
MHC class I protein binding GO:0042288
Interacting selectively and non-covalently with major histocompatibility complex class I molecules; a set of molecules displayed on cell surfaces that are responsible for lymphocyte recognition and antigen presentation.
4 O15533 (/TAS) O15533 (/TAS) O15533 (/TAS) O15533 (/TAS)
Peptide antigen binding GO:0042605
Interacting selectively and non-covalently with an antigen peptide.
4 O15533 (/TAS) O15533 (/TAS) O15533 (/TAS) O15533 (/TAS)
TAP1 binding GO:0046978
Interacting selectively and non-covalently with the TAP1 subunit of TAP (transporter associated with antigen processing) protein.
4 O15533 (/IPI) O15533 (/IPI) O15533 (/IPI) O15533 (/IPI)
TAP1 binding GO:0046978
Interacting selectively and non-covalently with the TAP1 subunit of TAP (transporter associated with antigen processing) protein.
4 O15533 (/TAS) O15533 (/TAS) O15533 (/TAS) O15533 (/TAS)
TAP2 binding GO:0046979
Interacting selectively and non-covalently with the TAP2 subunit of TAP (transporter associated with antigen processing) protein.
4 O15533 (/IPI) O15533 (/IPI) O15533 (/IPI) O15533 (/IPI)
TAP2 binding GO:0046979
Interacting selectively and non-covalently with the TAP2 subunit of TAP (transporter associated with antigen processing) protein.
4 O15533 (/TAS) O15533 (/TAS) O15533 (/TAS) O15533 (/TAS)
Unfolded protein binding GO:0051082
Interacting selectively and non-covalently with an unfolded protein.
4 O15533 (/TAS) O15533 (/TAS) O15533 (/TAS) O15533 (/TAS)
TAP1 binding GO:0046978
Interacting selectively and non-covalently with the TAP1 subunit of TAP (transporter associated with antigen processing) protein.
2 Q9R233 (/ISO) Q9R233 (/ISO)
TAP2 binding GO:0046979
Interacting selectively and non-covalently with the TAP2 subunit of TAP (transporter associated with antigen processing) protein.
2 Q9R233 (/ISO) Q9R233 (/ISO)
TAP complex binding GO:0062061
Interacting selectively and non-covalently with a TAP complex.
2 Q9R233 (/ISO) Q9R233 (/ISO)
Unfolded protein binding GO:0051082
Interacting selectively and non-covalently with an unfolded protein.
1 Q99JC6 (/NAS)

There are 19 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
Protein-containing complex assembly GO:0065003
The aggregation, arrangement and bonding together of a set of macromolecules to form a protein-containing complex.
5 O15533 (/IDA) O15533 (/IDA) O15533 (/IDA) O15533 (/IDA) Q99JC6 (/IDA)
MHC class Ib protein complex assembly GO:0002398
The aggregation, arrangement and bonding together of a set of components to form an MHC class Ib protein complex. Class Ib here refers to non-classical class I molecules.
4 O15533 (/IMP) O15533 (/IMP) O15533 (/IMP) O15533 (/IMP)
Antigen processing and presentation of peptide antigen via MHC class I GO:0002474
The process in which an antigen-presenting cell expresses a peptide antigen on its cell surface in association with an MHC class I protein complex. Class I here refers to classical class I molecules.
4 O15533 (/TAS) O15533 (/TAS) O15533 (/TAS) O15533 (/TAS)
Antigen processing and presentation of exogenous peptide antigen via MHC class I, TAP-dependent GO:0002479
The process in which an antigen-presenting cell expresses a peptide antigen of exogenous origin on its cell surface in association with an MHC class I protein complex following intracellular transport via a TAP (transporter associated with antigen processing) pathway. The peptide is typically a fragment of a larger exogenous protein which has been degraded within the cell and is dependent on TAP transport from the cytosol to ER for association with the MHC class I molecule. Class I here refers to classical class I molecules.
4 O15533 (/TAS) O15533 (/TAS) O15533 (/TAS) O15533 (/TAS)
Retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum GO:0006890
The directed movement of substances from the Golgi back to the endoplasmic reticulum, mediated by vesicles bearing specific protein coats such as COPI or COG.
4 O15533 (/NAS) O15533 (/NAS) O15533 (/NAS) O15533 (/NAS)
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 O15533 (/TAS) O15533 (/TAS) O15533 (/TAS) O15533 (/TAS)
Regulation of gene expression GO:0010468
Any process that modulates the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
4 O15533 (/IMP) O15533 (/IMP) O15533 (/IMP) O15533 (/IMP)
Peptide antigen stabilization GO:0050823
Any process involved in maintaining the structure and integrity of a peptide antigen and preventing it from being degraded.
4 O15533 (/ISS) O15533 (/ISS) O15533 (/ISS) O15533 (/ISS)
Regulation of protein complex stability GO:0061635
Any process that affects the structure and integrity of a protein complex by altering the likelihood of its assembly or disassembly.
4 O15533 (/IDA) O15533 (/IDA) O15533 (/IDA) O15533 (/IDA)
Protein-containing complex assembly GO:0065003
The aggregation, arrangement and bonding together of a set of macromolecules to form a protein-containing complex.
4 O15533 (/TAS) O15533 (/TAS) O15533 (/TAS) O15533 (/TAS)
Vesicle fusion with endoplasmic reticulum-Golgi intermediate compartment (ERGIC) membrane GO:1990668
The joining of the lipid bilayer membrane around a vesicle to the lipid bilayer membrane of the ERGIC. This can involve anterograde or retrograde transport vesicles.
4 O15533 (/TAS) O15533 (/TAS) O15533 (/TAS) O15533 (/TAS)
MHC class Ib protein complex assembly GO:0002398
The aggregation, arrangement and bonding together of a set of components to form an MHC class Ib protein complex. Class Ib here refers to non-classical class I molecules.
2 Q9R233 (/ISO) Q9R233 (/ISO)
Antigen processing and presentation of exogenous peptide antigen via MHC class I, TAP-dependent GO:0002479
The process in which an antigen-presenting cell expresses a peptide antigen of exogenous origin on its cell surface in association with an MHC class I protein complex following intracellular transport via a TAP (transporter associated with antigen processing) pathway. The peptide is typically a fragment of a larger exogenous protein which has been degraded within the cell and is dependent on TAP transport from the cytosol to ER for association with the MHC class I molecule. Class I here refers to classical class I molecules.
2 Q9R233 (/IDA) Q9R233 (/IDA)
Defense response GO:0006952
Reactions, triggered in response to the presence of a foreign body or the occurrence of an injury, which result in restriction of damage to the organism attacked or prevention/recovery from the infection caused by the attack.
2 Q9R233 (/IMP) Q9R233 (/IMP)
Regulation of gene expression GO:0010468
Any process that modulates the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
2 Q9R233 (/ISO) Q9R233 (/ISO)
Peptide antigen stabilization GO:0050823
Any process involved in maintaining the structure and integrity of a peptide antigen and preventing it from being degraded.
2 Q9R233 (/IMP) Q9R233 (/IMP)
Regulation of protein complex stability GO:0061635
Any process that affects the structure and integrity of a protein complex by altering the likelihood of its assembly or disassembly.
2 Q9R233 (/ISO) Q9R233 (/ISO)
Protein-containing complex assembly GO:0065003
The aggregation, arrangement and bonding together of a set of macromolecules to form a protein-containing complex.
2 Q9R233 (/ISO) Q9R233 (/ISO)
MHC class I protein complex assembly GO:0002397
The aggregation, arrangement and bonding together of a set of components to form an MHC class I protein complex. Class I here refers to classical class I molecules.
1 Q99JC6 (/IEP)

There are 13 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
Phagocytic vesicle membrane GO:0030670
The lipid bilayer surrounding a phagocytic vesicle.
6 O15533 (/TAS) O15533 (/TAS) O15533 (/TAS) O15533 (/TAS) Q9R233 (/TAS) Q9R233 (/TAS)
MHC class I peptide loading complex GO:0042824
A large, multisubunit complex which consists of the MHC class I-beta 2 microglobulin dimer, the transporter associated with antigen presentation (TAP), tapasin (an MHC-encoded membrane protein), the chaperone calreticulin and the thiol oxidoreductase ERp57. Functions in the assembly of peptides with newly synthesized MHC class I molecules.
5 O15533 (/IDA) O15533 (/IDA) O15533 (/IDA) O15533 (/IDA) Q99JC6 (/IDA)
Golgi membrane GO:0000139
The lipid bilayer surrounding any of the compartments of the Golgi apparatus.
4 O15533 (/IDA) O15533 (/IDA) O15533 (/IDA) O15533 (/IDA)
Endoplasmic reticulum GO:0005783
The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
4 O15533 (/TAS) O15533 (/TAS) O15533 (/TAS) O15533 (/TAS)
Endoplasmic reticulum membrane GO:0005789
The lipid bilayer surrounding the endoplasmic reticulum.
4 O15533 (/IDA) O15533 (/IDA) O15533 (/IDA) O15533 (/IDA)
Integral component of membrane GO:0016021
The component of a 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.
4 O15533 (/TAS) O15533 (/TAS) O15533 (/TAS) O15533 (/TAS)
Endoplasmic reticulum-Golgi intermediate compartment membrane GO:0033116
The lipid bilayer surrounding any of the compartments of the endoplasmic reticulum (ER)-Golgi intermediate compartment system.
4 O15533 (/TAS) O15533 (/TAS) O15533 (/TAS) O15533 (/TAS)
MHC class I peptide loading complex GO:0042824
A large, multisubunit complex which consists of the MHC class I-beta 2 microglobulin dimer, the transporter associated with antigen presentation (TAP), tapasin (an MHC-encoded membrane protein), the chaperone calreticulin and the thiol oxidoreductase ERp57. Functions in the assembly of peptides with newly synthesized MHC class I molecules.
4 O15533 (/NAS) O15533 (/NAS) O15533 (/NAS) O15533 (/NAS)
Integral component of lumenal side of endoplasmic reticulum membrane GO:0071556
The component of the endoplasmic reticulum membrane consisting of the gene products that penetrate only the lumenal side of the membrane.
4 O15533 (/TAS) O15533 (/TAS) O15533 (/TAS) O15533 (/TAS)
Golgi membrane GO:0000139
The lipid bilayer surrounding any of the compartments of the Golgi apparatus.
2 Q9R233 (/ISO) Q9R233 (/ISO)
Endoplasmic reticulum membrane GO:0005789
The lipid bilayer surrounding the endoplasmic reticulum.
2 Q9R233 (/ISO) Q9R233 (/ISO)
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.
2 Q9R233 (/TAS) Q9R233 (/TAS)
MHC class I peptide loading complex GO:0042824
A large, multisubunit complex which consists of the MHC class I-beta 2 microglobulin dimer, the transporter associated with antigen presentation (TAP), tapasin (an MHC-encoded membrane protein), the chaperone calreticulin and the thiol oxidoreductase ERp57. Functions in the assembly of peptides with newly synthesized MHC class I molecules.
2 Q9R233 (/ISO) Q9R233 (/ISO)