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.
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FunFam 365: If kappa light chain

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 1 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
Antigen binding GO:0003823
Interacting selectively and non-covalently with an antigen, any substance which is capable of inducing a specific immune response and of reacting with the products of that response, the specific antibody or specifically sensitized T-lymphocytes, or both. Binding may counteract the biological activity of the antigen.
5 P01614 (/NAS) P01614 (/NAS) P01615 (/NAS) P01615 (/NAS) P06310 (/NAS)

There are 10 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
Receptor-mediated endocytosis GO:0006898
An endocytosis process in which cell surface receptors ensure specificity of transport. A specific receptor on the cell surface binds tightly to the extracellular macromolecule (the ligand) that it recognizes; the plasma-membrane region containing the receptor-ligand complex then undergoes endocytosis, forming a transport vesicle containing the receptor-ligand complex and excluding most other plasma-membrane proteins. Receptor-mediated endocytosis generally occurs via clathrin-coated pits and vesicles.
9 A0A075B6P5 (/TAS) A0A075B6P5 (/TAS) A0A075B6S6 (/TAS) A2NJV5 (/TAS) P01614 (/TAS) P01614 (/TAS) P01615 (/TAS) P01615 (/TAS) P06310 (/TAS)
Complement activation GO:0006956
Any process involved in the activation of any of the steps of the complement cascade, which allows for the direct killing of microbes, the disposal of immune complexes, and the regulation of other immune processes; the initial steps of complement activation involve one of three pathways, the classical pathway, the alternative pathway, and the lectin pathway, all of which lead to the terminal complement pathway.
9 A0A075B6P5 (/TAS) A0A075B6P5 (/TAS) A0A075B6S6 (/TAS) A2NJV5 (/TAS) P01614 (/TAS) P01614 (/TAS) P01615 (/TAS) P01615 (/TAS) P06310 (/TAS)
Complement activation, classical pathway GO:0006958
Any process involved in the activation of any of the steps of the classical pathway of the complement cascade which allows for the direct killing of microbes, the disposal of immune complexes, and the regulation of other immune processes.
9 A0A075B6P5 (/TAS) A0A075B6P5 (/TAS) A0A075B6S6 (/TAS) A2NJV5 (/TAS) P01614 (/TAS) P01614 (/TAS) P01615 (/TAS) P01615 (/TAS) P06310 (/TAS)
Regulation of complement activation GO:0030449
Any process that modulates the frequency, rate or extent of complement activation.
9 A0A075B6P5 (/TAS) A0A075B6P5 (/TAS) A0A075B6S6 (/TAS) A2NJV5 (/TAS) P01614 (/TAS) P01614 (/TAS) P01615 (/TAS) P01615 (/TAS) P06310 (/TAS)
Fc-epsilon receptor signaling pathway GO:0038095
A series of molecular signals initiated by the binding of the Fc portion of immunoglobulin E (IgE) to an Fc-epsilon receptor on the surface of a signal-receiving cell, and ending with regulation of a downstream cellular process, e.g. transcription. The Fc portion of an immunoglobulin is its C-terminal constant region.
9 A0A075B6P5 (/TAS) A0A075B6P5 (/TAS) A0A075B6S6 (/TAS) A2NJV5 (/TAS) P01614 (/TAS) P01614 (/TAS) P01615 (/TAS) P01615 (/TAS) P06310 (/TAS)
Fc-gamma receptor signaling pathway involved in phagocytosis GO:0038096
An Fc-gamma receptor signaling pathway that contributes to the endocytic engulfment of external particulate material by phagocytes.
9 A0A075B6P5 (/TAS) A0A075B6P5 (/TAS) A0A075B6S6 (/TAS) A2NJV5 (/TAS) P01614 (/TAS) P01614 (/TAS) P01615 (/TAS) P01615 (/TAS) P06310 (/TAS)
Regulation of immune response GO:0050776
Any process that modulates the frequency, rate or extent of the immune response, the immunological reaction of an organism to an immunogenic stimulus.
9 A0A075B6P5 (/TAS) A0A075B6P5 (/TAS) A0A075B6S6 (/TAS) A2NJV5 (/TAS) P01614 (/TAS) P01614 (/TAS) P01615 (/TAS) P01615 (/TAS) P06310 (/TAS)
Leukocyte migration GO:0050900
The movement of a leukocyte within or between different tissues and organs of the body.
9 A0A075B6P5 (/TAS) A0A075B6P5 (/TAS) A0A075B6S6 (/TAS) A2NJV5 (/TAS) P01614 (/TAS) P01614 (/TAS) P01615 (/TAS) P01615 (/TAS) P06310 (/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.
5 P01614 (/NAS) P01614 (/NAS) P01615 (/NAS) P01615 (/NAS) P06310 (/NAS)
Response to bacterium GO:0009617
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 stimulus from a bacterium.
1 A0A0B4J1H6 (/IEP)

There are 5 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
Extracellular region GO:0005576
The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
9 A0A075B6P5 (/TAS) A0A075B6P5 (/TAS) A0A075B6S6 (/TAS) A2NJV5 (/TAS) P01614 (/TAS) P01614 (/TAS) P01615 (/TAS) P01615 (/TAS) P06310 (/TAS)
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 A0A075B6P5 (/TAS) A0A075B6P5 (/TAS) A0A075B6S6 (/TAS) A2NJV5 (/TAS) P01614 (/TAS) P01614 (/TAS) P01615 (/TAS) P01615 (/TAS) P06310 (/TAS)
Extracellular region GO:0005576
The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
5 P01614 (/NAS) P01614 (/NAS) P01615 (/NAS) P01615 (/NAS) P06310 (/NAS)
Extracellular exosome GO:0070062
A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
5 P01614 (/HDA) P01614 (/HDA) P01615 (/HDA) P01615 (/HDA) P06310 (/HDA)
Blood microparticle GO:0072562
A phospholipid microvesicle that is derived from any of several cell types, such as platelets, blood cells, endothelial cells, or others, and contains membrane receptors as well as other proteins characteristic of the parental cell. Microparticles are heterogeneous in size, and are characterized as microvesicles free of nucleic acids.
5 P01614 (/HDA) P01614 (/HDA) P01615 (/HDA) P01615 (/HDA) P06310 (/HDA)