The name of this superfamily has been modified since the most recent official CATH+ release (v4_4_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.
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FunFam 3755:

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 4 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).
2 P42523 (/IPI) P42523 (/IPI)
Protein homodimerization activity GO:0042803
Interacting selectively and non-covalently with an identical protein to form a homodimer.
2 P42523 (/IDA) P42523 (/IDA)
Protein heterodimerization activity GO:0046982
Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
2 P42523 (/IDA) P42523 (/IDA)
Receptor ligand activity GO:0048018
The activity of a gene product that interacts with a receptor to effect a change in the activity of the receptor. Ligands may be produced by the same, or different, cell that expresses the receptor. Ligands may diffuse extracellularly from their point of origin to the receiving cell, or remain attached to an adjacent cell surface (e.g. Notch ligands).
2 P42523 (/IDA) P42523 (/IDA)

There are 14 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
Aggregation involved in sorocarp development GO:0031152
The process whose specific outcome is the progression of the aggregate over time, from its formation to the point when a slug is formed. Aggregate development begins in response to starvation and continues by the chemoattractant-mediated movement of cells toward each other. The aggregate is a multicellular structure that gives rise to the slug.
3 P42523 (/IMP) P42523 (/IMP) Q9U8Q1 (/IMP)
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.
2 P42523 (/IDA) P42523 (/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.
2 P42523 (/IMP) P42523 (/IMP)
Cell-cell recognition GO:0009988
Cell recognition between cells. May involve the formation of specialized cell junctions.
2 P42523 (/IMP) P42523 (/IMP)
Regulation of signaling receptor activity GO:0010469
Any process that modulates the frequency, rate or extent of a signaling receptor activity. Receptor activity is when a molecule combines with an extracellular or intracellular messenger to initiate a change in cell activity.
2 P42523 (/IDA) P42523 (/IDA)
Calcium-independent cell-cell adhesion via plasma membrane cell-adhesion molecules GO:0016338
The attachment of one cell to another cell via adhesion molecules that do not require the presence of calcium for the interaction.
2 P42523 (/IGI) P42523 (/IGI)
Sorocarp stalk cell differentiation GO:0031149
The process in which a relatively unspecialized cell acquires specialized features of a sorocarp stalk cell, any of the cellulose-covered cells that form the stalk of a sorocarp. An example of this process is found in Dictyostelium discoideum.
2 P42523 (/IGI) P42523 (/IGI)
Aggregation involved in sorocarp development GO:0031152
The process whose specific outcome is the progression of the aggregate over time, from its formation to the point when a slug is formed. Aggregate development begins in response to starvation and continues by the chemoattractant-mediated movement of cells toward each other. The aggregate is a multicellular structure that gives rise to the slug.
2 P42523 (/IEP) P42523 (/IEP)
Positive regulation of protein homodimerization activity GO:0090073
Any process that increases the frequency, rate or extent of protein homodimerization, interacting selectively with an identical protein to form a homodimer.
2 P42523 (/IDA) P42523 (/IDA)
Cell-cell self recognition GO:0097656
A cell-cell recognition process by which a cell distinguishes between self and non self during cooperative behavior, such as early development.
2 P42523 (/IGI) P42523 (/IGI)
Cell-cell adhesion GO:0098609
The attachment of one cell to another cell via adhesion molecules.
2 P42523 (/IDA) P42523 (/IDA)
Socially cooperative development GO:0099120
Development a structure consisting of multiple co-operating unicellular organisms of the same species. Examples include sorocarp development in Dictystelia and co-operative colonial structures formed by Myxococcus xanthus for the purpose of predation and fruiting body formation.
2 P42523 (/IMP) P42523 (/IMP)
Altruistic, chimeric sorocarp development GO:0099138
Development of a chimeric sorocarp in which cells of all genotypes have an equal chance of becoming a spore cell.
2 P42523 (/IDA) P42523 (/IDA)
Response to catechin GO:1902168
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 catechin stimulus.
2 P42523 (/IDA) P42523 (/IDA)

There are 4 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
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 P42523 (/TAS) P42523 (/TAS) Q9U8Q1 (/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 P42523 (/IDA) P42523 (/IDA)
Cell-cell contact zone GO:0044291
Extended zone of intimate apposition between two cells containing one or more types of intercellular junctions, e.g., the intercalated disk of muscle.
2 P42523 (/IDA) P42523 (/IDA)
Protein complex involved in cell-cell adhesion GO:0098635
Any protein complex that is capable of carrying out some part of the process of cell-cell adhesion.
2 P42523 (/IDA) P42523 (/IDA)
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