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Claudin 9
Symbol CLDN9
External IDs MGI1913100 HomoloGene10656 GeneCards: CLDN9 Gene
RNA expression pattern
PBB GE CLDN9 214635 at tn.png
More reference expression data
Species Human Mouse
Entrez 9080 56863
Ensembl ENSG00000213937 ENSMUSG00000066720
UniProt O95484 Q9Z0S7
RefSeq (mRNA) NM_020982 NM_020293
RefSeq (protein) NP_066192 NP_064689
Location (UCSC) Chr 16:
3.06 – 3.06 Mb
Chr 17:
23.68 – 23.68 Mb
PubMed search [1] [2]

Claudin-9 is a protein that in humans is encoded by the CLDN9 gene.[1][2][3] It belongs to the group of claudins.

This gene is involved in hearing.[4]


  1. ^ Peacock RE, Keen TJ, Inglehearn CF (Mar 1998). "Analysis of a human gene homologous to rat ventral prostate.1 protein". Genomics 46 (3): 443–9. doi:10.1006/geno.1997.5033. PMID 9441748. 
  2. ^ Meertens L, Bertaux C, Cukierman L, Cormier E, Lavillette D, Cosset FL, Dragic T (Mar 2008). "The tight junction proteins claudin-1, -6, and -9 are entry cofactors for hepatitis C virus". J Virol 82 (7): 3555–60. doi:10.1128/JVI.01977-07. PMC 2268462. PMID 18234789. 
  3. ^ "Entrez Gene: CLDN9 claudin 9". 
  4. ^ Gene discovery reveals a critical protein's function in hearing

Further reading[edit]