U.S. flag

An official website of the United States government

GTR Home > Genes

TJP2 tight junction protein 2

Gene ID: 9414, updated on 7-Apr-2024
Gene type: protein coding
Also known as: ZO2; X104; FHCA1; PFIC4; DFNA51; DUP9q21.11; C9DUPq21.11

Summary

This gene encodes a zonula occluden that is a member of the membrane-associated guanylate kinase homolog family. The encoded protein functions as a component of the tight junction barrier in epithelial and endothelial cells and is necessary for proper assembly of tight junctions. Mutations in this gene have been identified in patients with hypercholanemia, and genomic duplication of a 270 kb region including this gene causes autosomal dominant deafness-51. Alternatively spliced transcripts encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Nov 2011]

Associated conditions

See all available tests in GTR for this gene

DescriptionTests
Cholestasis, progressive familial intrahepatic, 4
MedGen: C2931067OMIM: 615878GeneReviews: Not available
See labs
Genome-wide meta-analyses of multiancestry cohorts identify multiple new susceptibility loci for refractive error and myopia.
GeneReviews: Not available
Heritability and genome-wide association analysis of renal sinus fat accumulation in the Framingham Heart Study.
GeneReviews: Not available
Hypercholanemia, familial 1
MedGen: C5542604OMIM: 607748GeneReviews: Not available
See labs

Genomic context

Location:
9q21.11
Sequence:
Chromosome: 9; NC_000009.12 (69121264..69255208)
Total number of exons:
35

Links

IMPORTANT NOTE: NIH does not independently verify information submitted to the GTR; it relies on submitters to provide information that is accurate and not misleading. NIH makes no endorsements of tests or laboratories listed in the GTR. GTR is not a substitute for medical advice. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.