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inter-alpha-trypsin inhibitor heavy chain 5

Summary

Gene Symbol

ITIH5

Organism

Homo sapiens (human)

External Links

NCBI Gene

80760

PubChem

80760

Alliance of Genome Resources

HGNC:21449

Annotation

Keyword

Alternative splicing
Glycoprotein
Proteomics identification
Reference proteome
Secreted
Serine protease inhibitor
Signal

Proteins

Displaying **all 5** entries
UniProt	Protein Name
C9J2H1
A0A096LP62
G5E9D8
Q96JW9
Q86UX2

Annotation information from UniProt.

Gene Ontology (GO)

Displaying **all 2** entries
GO Term	Evidence Code	PMID
negative regulation of peptidase activity
hyaluronan metabolic process	IEA

GO Hierarchy

biological process

metabolic process [inference]

nitrogen compound metabolic process [inference]

organonitrogen compound metabolic process [inference]

aminoglycan metabolic process [inference]

glycosaminoglycan metabolic process [inference]

mucopolysaccharide metabolic process [inference]

hyaluronan metabolic process

organic substance metabolic process [inference]

macromolecule metabolic process [inference]

aminoglycan metabolic process [inference]

glycosaminoglycan metabolic process [inference]

mucopolysaccharide metabolic process [inference]

hyaluronan metabolic process

carbohydrate derivative metabolic process [inference]

aminoglycan metabolic process [inference]

glycosaminoglycan metabolic process [inference]

mucopolysaccharide metabolic process [inference]

hyaluronan metabolic process

organonitrogen compound metabolic process [inference]

aminoglycan metabolic process [inference]

glycosaminoglycan metabolic process [inference]

mucopolysaccharide metabolic process [inference]

hyaluronan metabolic process

biological regulation [inference]

regulation of biological process [inference]

regulation of metabolic process [inference]

negative regulation of metabolic process [inference]

negative regulation of macromolecule metabolic process [inference]

negative regulation of protein metabolic process [inference]

negative regulation of proteolysis [inference]

negative regulation of peptidase activity

negative regulation of nitrogen compound metabolic process [inference]

negative regulation of protein metabolic process [inference]

negative regulation of proteolysis [inference]

negative regulation of peptidase activity

regulation of nitrogen compound metabolic process [inference]

negative regulation of nitrogen compound metabolic process [inference]

negative regulation of protein metabolic process [inference]

negative regulation of proteolysis [inference]

negative regulation of peptidase activity

regulation of protein metabolic process [inference]

regulation of proteolysis [inference]

negative regulation of proteolysis [inference]

negative regulation of peptidase activity

regulation of peptidase activity [inference]

negative regulation of peptidase activity

negative regulation of protein metabolic process [inference]

negative regulation of proteolysis [inference]

negative regulation of peptidase activity

regulation of macromolecule metabolic process [inference]

negative regulation of macromolecule metabolic process [inference]

negative regulation of protein metabolic process [inference]

negative regulation of proteolysis [inference]

negative regulation of peptidase activity

regulation of protein metabolic process [inference]

regulation of proteolysis [inference]

negative regulation of proteolysis [inference]

negative regulation of peptidase activity

regulation of peptidase activity [inference]

negative regulation of peptidase activity

negative regulation of protein metabolic process [inference]

negative regulation of proteolysis [inference]

negative regulation of peptidase activity

regulation of primary metabolic process [inference]

regulation of protein metabolic process [inference]

regulation of proteolysis [inference]

negative regulation of proteolysis [inference]

negative regulation of peptidase activity

regulation of peptidase activity [inference]

negative regulation of peptidase activity

negative regulation of protein metabolic process [inference]

negative regulation of proteolysis [inference]

negative regulation of peptidase activity

negative regulation of biological process [inference]

negative regulation of metabolic process [inference]

negative regulation of macromolecule metabolic process [inference]

negative regulation of protein metabolic process [inference]

negative regulation of proteolysis [inference]

negative regulation of peptidase activity

negative regulation of nitrogen compound metabolic process [inference]

negative regulation of protein metabolic process [inference]

negative regulation of proteolysis [inference]

negative regulation of peptidase activity

regulation of molecular function [inference]

negative regulation of molecular function [inference]

negative regulation of catalytic activity [inference]

negative regulation of hydrolase activity [inference]

negative regulation of peptidase activity

regulation of catalytic activity [inference]

negative regulation of catalytic activity [inference]

negative regulation of hydrolase activity [inference]

negative regulation of peptidase activity

regulation of hydrolase activity [inference]

negative regulation of hydrolase activity [inference]

negative regulation of peptidase activity

regulation of peptidase activity [inference]

negative regulation of peptidase activity

Displaying **all 2** entries
GO Term	Evidence Code	PMID
extracellular region	IEA
collagen-containing extracellular matrix	HDA	25037231 28675934

GO Hierarchy

cellular component

cellular anatomical entity [inference]

extracellular region

external encapsulating structure [inference]

extracellular matrix [inference]

collagen-containing extracellular matrix

Displaying 1 entry
GO Term	Evidence Code	PMID
serine-type endopeptidase inhibitor activity	IEA

GO Hierarchy

molecular function

molecular function regulator activity [inference]

enzyme regulator activity [inference]

enzyme inhibitor activity [inference]

peptidase inhibitor activity [inference]

endopeptidase inhibitor activity [inference]

serine-type endopeptidase inhibitor activity

peptidase regulator activity [inference]

peptidase inhibitor activity [inference]

endopeptidase inhibitor activity [inference]

serine-type endopeptidase inhibitor activity

endopeptidase regulator activity [inference]

endopeptidase inhibitor activity [inference]

serine-type endopeptidase inhibitor activity

molecular function inhibitor activity [inference]

enzyme inhibitor activity [inference]

peptidase inhibitor activity [inference]

endopeptidase inhibitor activity [inference]

serine-type endopeptidase inhibitor activity

Gene Ontology information from NCBI Gene and UniProt.

OrthoDB (Group)

Group level

Eukaryota

Group Name

inter-alpha-trypsin inhibitor heavy

Functional Category

E: Amino acid transport and metabolism
P: Inorganic ion transport and metabolism
T: Signal transduction mechanisms

Displaying **all 3** entries
Gene Ontology
hyaluronan metabolic process
peptidase inhibitor activity
serine-type endopeptidase inhibitor activity

Displaying **all 4** entries
InterPro
Inter-alpha-trypsin inhibitor heavy chain, C-terminal
VIT domain
von Willebrand factor A-like domain superfamily
von Willebrand factor, type A

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Last updated: December 8, 2025

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