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:

"
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 81762: Beta-2-microglobulin

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
Glycoprotein binding GO:0001948
Interacting selectively and non-covalently with a glycoprotein, a protein that contains covalently bound glycose (monosaccharide) residues. These also include proteoglycans.
1 P25311 (/IPI)
Ribonuclease activity GO:0004540
Catalysis of the hydrolysis of phosphodiester bonds in chains of RNA.
1 P25311 (/NAS)
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).
1 P25311 (/IPI)
Protein transmembrane transporter activity GO:0008320
Enables the transfer of a protein from one side of a membrane to the other.
1 P25311 (/NAS)

There are 6 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
Detection of chemical stimulus involved in sensory perception of bitter taste GO:0001580
The series of events required for a bitter taste stimulus to be received and converted to a molecular signal.
1 P25311 (/IDA)
Retina homeostasis GO:0001895
A tissue homeostatic process involved in the maintenance of an internal equilibrium within the retina of the eye, including control of cellular proliferation and death and control of metabolic function.
1 P25311 (/IEP)
Cell adhesion GO:0007155
The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules.
1 P25311 (/IDA)
Cell adhesion GO:0007155
The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules.
1 P25311 (/ISS)
Negative regulation of cell proliferation GO:0008285
Any process that stops, prevents or reduces the rate or extent of cell proliferation.
1 P25311 (/NAS)
Transmembrane transport GO:0055085
The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other
1 P25311 (/TAS)

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.
1 P25311 (/NAS)
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.
1 P25311 (/TAS)
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.
1 P25311 (/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 P25311 (/IDA)
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.
1 P25311 (/IDA)