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Gene: CA9 (carbonic anhydrase 9) Homo sapiens
Symbol: CA9
Name: carbonic anhydrase 9
Description: Predicted to have carbonate dehydratase activity and zinc ion binding activity. Predicted to be involved in bicarbonate transport and regulation of transcription from RNA polymerase II promoter in response to hypoxia. Localizes to the plasma membrane. Implicated in renal cell carcinoma. Biomarker of breast carcinoma; endometrial hyperplasia; renal cell carcinoma; transitional cell carcinoma; and urinary bladder cancer.
Type: protein-coding
RefSeq Status: REVIEWED
Also known as: CA-IX; CAIX; carbonate dehydratase IX; carbonic anhydrase IX; carbonic dehydratase; membrane antigen MN; MN; P54/58N; pMW1; RCC-associated antigen G250; RCC-associated protein G250; renal cell carcinoma-associated antigen G250
Mus musculus (house mouse) : Car9 (carbonic anhydrase 9)  MGI  Alliance
Rattus norvegicus (Norway rat) : Ca9 (carbonic anhydrase 9)  Alliance
Chinchilla lanigera (long-tailed chinchilla) : Ca9 (carbonic anhydrase 9)
Pan paniscus (bonobo/pygmy chimpanzee) : CA9 (carbonic anhydrase 9)
Canis lupus familiaris (dog) : CA9 (carbonic anhydrase 9)
Ictidomys tridecemlineatus (thirteen-lined ground squirrel) : Ca9 (carbonic anhydrase 9)
Sus scrofa (pig) : CA9 (carbonic anhydrase 9)
Chlorocebus sabaeus (green monkey) : CA9 (carbonic anhydrase 9)
Heterocephalus glaber (naked mole-rat) : Ca9 (carbonic anhydrase 9)
more info ...
Allele / Splice: See ClinVar data
Latest Assembly: GRCh38 - Human Genome Assembly GRCh38
Human AssemblyChrPosition (strand)SourceGenome Browsers
GRCh38 Ensembl935,673,918 - 35,681,159 (+)Ensembl
GRCh38935,673,809 - 35,681,159 (+)NCBIGRCh38GRCh38hg38GRCh38
GRCh37935,673,915 - 35,681,156 (+)NCBIGRCh37GRCh37hg19GRCh37
Build 36935,663,915 - 35,671,152 (+)NCBINCBI36hg18NCBI36
Build 34935,663,914 - 35,671,152NCBI
Celera935,607,463 - 35,614,702 (+)NCBI
Cytogenetic Map9p13.3NCBI
HuRef935,629,523 - 35,636,764 (+)NCBIHuRef
CHM1_1935,673,743 - 35,680,984 (+)NCBICHM1_1
JBrowse: View Region in Genome Browser (JBrowse)

Disease Annotations
Gene-Chemical Interaction Annotations
Gene Ontology Annotations
Molecular Pathway Annotations
References - curated
References - uncurated


Comparative Map Data
Position Markers
miRNA Target Status


RNA-SEQ Expression


Nucleotide Sequences
Protein Sequences
Clinical Variants

Additional Information

External Database Links
Nomenclature History
More on CA9
Alliance Gene
Ensembl Gene
JBrowse: hg19 hg38
HGNC Report
NCBI Genome Data Viewer

RGD Object Information
RGD ID: 1315034
Created: 2005-01-12
Species: Homo sapiens
Last Modified: 2020-01-28
Status: ACTIVE


RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.