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 1143: Protein-glutamine gamma-glutamyltransferase K

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-glutamine gamma-glutamyltransferase activity GO:0003810
Catalysis of the reaction: protein glutamine + alkylamine = protein N5-alkylglutamine + NH3. This reaction is the formation of the N6-(L-isoglutamyl)-L-lysine isopeptide, resulting in cross-linking polypeptide chains; the gamma-carboxamide groups of peptidyl-glutamine residues act as acyl donors, and the 6-amino-groups of peptidyl-lysine residues act as acceptors, to give intra- and intermolecular N6-(5-glutamyl)lysine cross-links.
1 P22735 (/IDA)
Protein-glutamine gamma-glutamyltransferase activity GO:0003810
Catalysis of the reaction: protein glutamine + alkylamine = protein N5-alkylglutamine + NH3. This reaction is the formation of the N6-(L-isoglutamyl)-L-lysine isopeptide, resulting in cross-linking polypeptide chains; the gamma-carboxamide groups of peptidyl-glutamine residues act as acyl donors, and the 6-amino-groups of peptidyl-lysine residues act as acceptors, to give intra- and intermolecular N6-(5-glutamyl)lysine cross-links.
1 Q9JLF6 (/ISO)
Protein-glutamine gamma-glutamyltransferase activity GO:0003810
Catalysis of the reaction: protein glutamine + alkylamine = protein N5-alkylglutamine + NH3. This reaction is the formation of the N6-(L-isoglutamyl)-L-lysine isopeptide, resulting in cross-linking polypeptide chains; the gamma-carboxamide groups of peptidyl-glutamine residues act as acyl donors, and the 6-amino-groups of peptidyl-lysine residues act as acceptors, to give intra- and intermolecular N6-(5-glutamyl)lysine cross-links.
1 P23606 (/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 P22735 (/IPI)

There are 16 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
Positive regulation of keratinocyte proliferation GO:0010838
Any process that increases the rate, frequency or extent of keratinocyte proliferation. Keratinocyte proliferation is the multiplication or reproduction of keratinocytes, resulting in the expansion of a cell population.
4 P22758 (/ISS) P23606 (/ISS) Q9GLK0 (/ISS) Q9JLF6 (/ISS)
Positive regulation of cell cycle GO:0045787
Any process that activates or increases the rate or extent of progression through the cell cycle.
4 P22758 (/ISS) P23606 (/ISS) Q9GLK0 (/ISS) Q9JLF6 (/ISS)
Cellular protein modification process GO:0006464
The covalent alteration of one or more amino acids occurring in proteins, peptides and nascent polypeptides (co-translational, post-translational modifications) occurring at the level of an individual cell. Includes the modification of charged tRNAs that are destined to occur in a protein (pre-translation modification).
1 P22735 (/NAS)
Animal organ morphogenesis GO:0009887
Morphogenesis of an animal organ. An organ is defined as a tissue or set of tissues that work together to perform a specific function or functions. Morphogenesis is the process in which anatomical structures are generated and organized. Organs are commonly observed as visibly distinct structures, but may also exist as loosely associated clusters of cells that work together to perform a specific function or functions.
1 Q9JLF6 (/IMP)
Positive regulation of keratinocyte proliferation GO:0010838
Any process that increases the rate, frequency or extent of keratinocyte proliferation. Keratinocyte proliferation is the multiplication or reproduction of keratinocytes, resulting in the expansion of a cell population.
1 P22735 (/IMP)
Positive regulation of keratinocyte proliferation GO:0010838
Any process that increases the rate, frequency or extent of keratinocyte proliferation. Keratinocyte proliferation is the multiplication or reproduction of keratinocytes, resulting in the expansion of a cell population.
1 Q9JLF6 (/ISO)
Peptide cross-linking GO:0018149
The formation of a covalent cross-link between or within protein chains.
1 P22735 (/IDA)
Peptide cross-linking GO:0018149
The formation of a covalent cross-link between or within protein chains.
1 Q9JLF6 (/ISO)
Peptide cross-linking GO:0018149
The formation of a covalent cross-link between or within protein chains.
1 P23606 (/NAS)
Protein metabolic process GO:0019538
The chemical reactions and pathways involving a protein. Includes protein modification.
1 Q9JLF6 (/TAS)
Keratinocyte differentiation GO:0030216
The process in which a relatively unspecialized cell acquires specialized features of a keratinocyte.
1 P22735 (/IDA)
Keratinocyte differentiation GO:0030216
The process in which a relatively unspecialized cell acquires specialized features of a keratinocyte.
1 Q9JLF6 (/ISO)
Cell envelope organization GO:0043163
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the cell envelope, everything external to, but not including, the cytoplasmic membrane of bacteria, encompassing the periplasmic space, cell wall, and outer membrane if present.
1 P22735 (/TAS)
Positive regulation of cell cycle GO:0045787
Any process that activates or increases the rate or extent of progression through the cell cycle.
1 P22735 (/IMP)
Positive regulation of cell cycle GO:0045787
Any process that activates or increases the rate or extent of progression through the cell cycle.
1 Q9JLF6 (/ISO)
Cornification GO:0070268
A type of programmed cell death that occurs in the epidermis, morphologically and biochemically distinct from apoptosis. It leads to the formation of corneocytes, i.e. dead keratinocytes containing an amalgam of specific proteins (e.g., keratin, loricrin, SPR and involucrin) and lipids (e.g., fatty acids and ceramides), which are necessary for the function of the cornified skin layer (mechanical resistance, elasticity, water repellence and structural stability).
1 P22735 (/TAS)

There are 10 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
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
4 P22758 (/ISS) P23606 (/ISS) Q9GLK0 (/ISS) Q9JLF6 (/ISS)
Cornified envelope GO:0001533
A type of plasma membrane that has been modified through addition of distinct intracellular and extracellular components, including ceramide, found in cornifying epithelial cells (corneocytes).
1 P22735 (/TAS)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
1 P22735 (/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.
1 P22735 (/TAS)
Cell-cell adherens junction GO:0005913
An adherens junction which connects a cell to another cell.
1 Q9JLF6 (/IDA)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 P22735 (/IDA)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 Q9JLF6 (/ISO)
Intrinsic component of membrane GO:0031224
The component of a membrane consisting of the gene products having some covalently attached portion, for example part of a peptide sequence or some other covalently attached group such as a GPI anchor, which spans or is embedded in one or both leaflets of the membrane.
1 P22735 (/IDA)
Intrinsic component of membrane GO:0031224
The component of a membrane consisting of the gene products having some covalently attached portion, for example part of a peptide sequence or some other covalently attached group such as a GPI anchor, which spans or is embedded in one or both leaflets of the membrane.
1 Q9JLF6 (/ISO)
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 P22735 (/HDA)
CATH-Gene3D is a Global Biodata Core Resource Learn more...