RGD Reference Report - Primary structure of keratinocyte transglutaminase. - Rat Genome Database

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Primary structure of keratinocyte transglutaminase.

Authors: Phillips, MA  Stewart, BE  Qin, Q  Chakravarty, R  Floyd, EE  Jetten, AM  Rice, RH 
Citation: Phillips MA, etal., Proc Natl Acad Sci U S A 1990 Dec;87(23):9333-7.
RGD ID: 61767
Pubmed: PMID:1979171   (View Abstract at PubMed)
PMCID: PMC55159   (View Article at PubMed Central)

The nucleotide and deduced amino acid sequences of the coding regions of human and rat keratinocyte transglutaminases (protein-glutamine: amine gamma-glutamyltransferase; EC 2.3.2.13) have been determined. These yield proteins of approximately 90 kDa that are 92% identical, indicative of the conservation of important structural features. Alignments of amino acid sequences show substantial similarity among the keratinocyte transglutaminase, human clotting factor XIII catalytic subunit, guinea pig liver tissue transglutaminase, and the human erythrocyte band-4.2 protein. The keratinocyte enzyme is most similar to factor XIII, whereas the band-4.2 protein is most similar to the tissue transglutaminase. A salient feature of the keratinocyte transglutaminase is its 105-residue extension beyond the N terminus of the tissue transglutaminase. This extension and the unrelated activation peptide of factor XIII (a 37-residue extension) appear to be added for specialized functions after divergence of the tissue transglutaminase from their common lineage.

Gene Ontology Annotations    Click to see Annotation Detail View

Biological Process
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
peptide cross-linking  NAS 61767 RGD 

Molecular Function
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
protein-glutamine gamma-glutamyltransferase activity  NAS 61767 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Tgm1  (transglutaminase 1)


Additional Information