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Aliases for CA8 Gene

Aliases for CA8 Gene

  • Carbonic Anhydrase 8 2 3
  • Carbonic Anhydrase VIII 2 3 4 5
  • CA-VIII 3 4
  • CARP 3 4
  • CALS 3 4
  • Carbonic Anhydrase-Like Sequence 3
  • Carbonate Dehydratase 3
  • CA-Related Protein 3
  • CAMRQ3 3
  • CA-RP 3

External Ids for CA8 Gene

Previous HGNC Symbols for CA8 Gene

  • CALS

Previous GeneCards Identifiers for CA8 Gene

  • GC08U990008
  • GC08M061040
  • GC08M060824
  • GC08M061151
  • GC08M061264
  • GC08M056591

Summaries for CA8 Gene

Entrez Gene Summary for CA8 Gene

  • The protein encoded by this gene was initially named CA-related protein because of sequence similarity to other known carbonic anhydrase genes. However, the gene product lacks carbonic anhydrase activity (i.e., the reversible hydration of carbon dioxide). The gene product continues to carry a carbonic anhydrase designation based on clear sequence identity to other members of the carbonic anhydrase gene family. The absence of CA8 gene transcription in the cerebellum of the lurcher mutant in mice with a neurologic defect suggests an important role for this acatalytic form. Mutations in this gene are associated with cerebellar ataxia, mental retardation, and dysequilibrium syndrome 3 (CMARQ3). Polymorphisms in this gene are associated with osteoporosis, and overexpression of this gene in osteosarcoma cells suggests an oncogenic role. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2016]

GeneCards Summary for CA8 Gene

CA8 (Carbonic Anhydrase 8) is a Protein Coding gene. Diseases associated with CA8 include Cerebellar Ataxia And Mental Retardation With Or Without Quadrupedal Locomotion 3 and Cerebellar Hypoplasia And Mental Retardation With Or Without Quadrupedal Locomotion 1. Among its related pathways are Nitrogen metabolism. GO annotations related to this gene include carbonate dehydratase activity. An important paralog of this gene is CA14.

UniProtKB/Swiss-Prot for CA8 Gene

  • Does not have a carbonic anhydrase catalytic activity.

Gene Wiki entry for CA8 Gene

No data available for Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for CA8 Gene

Genomics for CA8 Gene

Regulatory Elements for CA8 Gene

Enhancers for CA8 Gene
GeneHancer Identifier Score Enhancer Sources TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor Binding Sites within enhancer Other Gene Targets for Enhancer

Enhancers around CA8 on UCSC Golden Path with GeneCards custom track

Promoters for CA8 Gene
Ensembl Regulatory Elements (ENSRs) TSS Distance (bp) Size (bp) Binding Sites for Transcription Factors within promoters

ENSRs around CA8 on UCSC Golden Path with GeneCards custom track

Genomic Location for CA8 Gene

60,187,347 bp from pter
60,281,412 bp from pter
94,066 bases
Minus strand

Genomic View for CA8 Gene

Genes around CA8 on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
CA8 Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for CA8 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for CA8 Gene

Proteins for CA8 Gene

  • Protein details for CA8 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Carbonic anhydrase-related protein
    Protein Accession:
    Secondary Accessions:
    • A8K0A5
    • B3KQZ7
    • Q32MY2

    Protein attributes for CA8 Gene

    290 amino acids
    Molecular mass:
    32973 Da
    Quaternary structure:
    No Data Available

    Three dimensional structures from OCA and Proteopedia for CA8 Gene

neXtProt entry for CA8 Gene

Proteomics data for CA8 Gene at MOPED

Post-translational modifications for CA8 Gene

  • Ubiquitination at Lys 96
  • Modification sites at PhosphoSitePlus

Other Protein References for CA8 Gene

Antibody Products

  • R&D Systems Antibodies for CA8 (Carbonic Anhydrase VIII/CA8)
  • Abcam antibodies for CA8

No data available for DME Specific Peptides for CA8 Gene

Domains & Families for CA8 Gene

Gene Families for CA8 Gene

Suggested Antigen Peptide Sequences for CA8 Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry



  • Belongs to the alpha-carbonic anhydrase family.
  • Belongs to the alpha-carbonic anhydrase family.
genes like me logo Genes that share domains with CA8: view

Function for CA8 Gene

Molecular function for CA8 Gene

GENATLAS Biochemistry:
carbonic anhydrase VIII,expressed in several tissues,putatively involved in nerve function
UniProtKB/Swiss-Prot Function:
Does not have a carbonic anhydrase catalytic activity.
genes like me logo Genes that share phenotypes with CA8: view

Human Phenotype Ontology for CA8 Gene

HPO Id HPO Name Alternative Ids Definition Synonyms

Animal Model Products

miRNA for CA8 Gene

miRTarBase miRNAs that target CA8

No data available for Enzyme Numbers (IUBMB) , Gene Ontology (GO) - Molecular Function , Animal Models , Transcription Factor Targets and HOMER Transcription for CA8 Gene

Localization for CA8 Gene

Subcellular locations from

Jensen Localization Image for CA8 Gene COMPARTMENTS Subcellular localization image for CA8 gene
Compartment Confidence
cytoskeleton 3
cytosol 3
endoplasmic reticulum 1
plasma membrane 1

No data available for Subcellular locations from UniProtKB/Swiss-Prot and Gene Ontology (GO) - Cellular Components for CA8 Gene

Pathways & Interactions for CA8 Gene

SuperPathways for CA8 Gene

Superpath Contained pathways
1 Nitrogen metabolism
genes like me logo Genes that share pathways with CA8: view

Pathways by source for CA8 Gene

1 KEGG pathway for CA8 Gene

Gene Ontology (GO) - Biological Process for CA8 Gene


No data available for SIGNOR curated interactions for CA8 Gene

Drugs & Compounds for CA8 Gene

(3) Drugs for CA8 Gene - From: DrugBank, HMDB, and Novoseek

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
Zonisamide Approved, Investigational Pharma Target, inhibitor Antiepileptic with anticonvulsant and mechanistic effect 65
Zinc Approved Pharma 2102

(4) Additional Compounds for CA8 Gene - From: Novoseek and HMDB

Name Synonyms Role CAS Number PubChem IDs PubMed IDs
carbon dioxide
  • Carbon oxide
  • Carbon-12 dioxide
  • Carbonic acid anhydride
  • Carbonic acid gas
  • Carbonic anhydride
Carbonic acid
  • Acid of air
  • Aerial acid
  • Bisodium carbonate
  • Calcined
  • Carbonic acid sodium salt
  • Dihydrogen oxide
  • Steam
genes like me logo Genes that share compounds with CA8: view

Transcripts for CA8 Gene

Unigene Clusters for CA8 Gene

Carbonic anhydrase VIII:
Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for CA8 Gene

No ASD Table

Relevant External Links for CA8 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for CA8 Gene

mRNA expression in normal human tissues for CA8 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for CA8 Gene

This gene is overexpressed in Brain - Cerebellum (x7.5) and Kidney - Cortex (x4.1).

Protein differential expression in normal tissues from HIPED for CA8 Gene

This gene is overexpressed in Fetal Brain (25.6), Testis (13.6), and Stomach (8.2).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, MOPED, and MaxQB for CA8 Gene

SOURCE GeneReport for Unigene cluster for CA8 Gene Hs.654388

genes like me logo Genes that share expression patterns with CA8: view

Primer Products

No data available for mRNA Expression by UniProt/SwissProt and Protein tissue co-expression partners for CA8 Gene

Orthologs for CA8 Gene

This gene was present in the common ancestor of animals.

Orthologs for CA8 Gene

Organism Taxonomy Gene Similarity Type Details
(Bos Taurus)
Mammalia CA8 35
  • 90.46 (n)
  • 98.97 (a)
CA8 36
  • 99 (a)
(Canis familiaris)
Mammalia CA8 35
  • 92.87 (n)
  • 99.66 (a)
CA8 36
  • 100 (a)
(Mus musculus)
Mammalia Car8 35
  • 88.85 (n)
  • 97.59 (a)
Car8 16
Car8 36
  • 99 (a)
(Pan troglodytes)
Mammalia CA8 35
  • 100 (n)
  • 100 (a)
CA8 36
  • 100 (a)
(Rattus norvegicus)
Mammalia Car8 35
  • 87.93 (n)
  • 98.97 (a)
(Monodelphis domestica)
Mammalia CA8 36
  • 93 (a)
(Ornithorhynchus anatinus)
Mammalia CA8 36
  • 93 (a)
(Gallus gallus)
Aves CA8 35
  • 79.62 (n)
  • 88.34 (a)
CA8 36
  • 90 (a)
(Anolis carolinensis)
Reptilia CA8 36
  • 86 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia ca8 35
  • 76.65 (n)
  • 83.27 (a)
(Danio rerio)
Actinopterygii ca8 35
  • 74.87 (n)
  • 83.98 (a)
Dr.13836 35
ca8 36
  • 81 (a)
rainbow trout
(Oncorhynchus mykiss)
Actinopterygii Omy.3200 35
fruit fly
(Drosophila melanogaster)
Insecta CG6906 37
  • 35 (a)
CAH2 36
  • 25 (a)
(Caenorhabditis elegans)
Secernentea cah-3 36
  • 31 (a)
cah-5 36
  • 24 (a)
sea squirt
(Ciona savignyi)
Ascidiacea CSA.10988 36
  • 31 (a)
Species with no ortholog for CA8:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)

Evolution for CA8 Gene

Gene Tree for CA8 (if available)
Gene Tree for CA8 (if available)

Paralogs for CA8 Gene

Paralogs for CA8 Gene

(12) SIMAP similar genes for CA8 Gene using alignment to 1 proteins:

genes like me logo Genes that share paralogs with CA8: view

Variants for CA8 Gene

Sequence variations from dbSNP and Humsavar for CA8 Gene

SNP ID Clin Chr 08 pos Sequence Context AA Info Type
VAR_063634 Cerebellar ataxia, mental retardation, and dysequilibrium syndrome 3 (CMARQ3)
rs2067757 -- 60,264,074(-) TTTGA(A/G)TGAAG intron-variant
rs2242154 -- 60,187,935(+) GCTTT(C/T)GTTTA utr-variant-3-prime
rs2242155 -- 60,188,567(+) TCACC(A/G)TTTCC downstream-variant-500B, utr-variant-3-prime
rs2242156 -- 60,188,603(+) ATACA(C/T)AAGGG downstream-variant-500B, utr-variant-3-prime

Structural Variations from Database of Genomic Variants (DGV) for CA8 Gene

Variant ID Type Subtype PubMed ID
nsv831332 CNV Gain 17160897
nsv831333 CNV Gain 17160897
nsv396601 CNV Loss 16902084
nsv890943 CNV Loss 21882294
nsv831334 CNV Gain 17160897

Variation tolerance for CA8 Gene

Residual Variation Intolerance Score: 37.2% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 1.89; 35.31% of all genes are more intolerant (likely to be disease-causing)

Relevant External Links for CA8 Gene

Human Gene Mutation Database (HGMD)

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for CA8 Gene

Disorders for CA8 Gene

MalaCards: The human disease database

(11) MalaCards diseases for CA8 Gene - From: OMIM, ClinVar, Orphanet, Swiss-Prot, DISEASES, and GeneCards

Disorder Aliases PubMed IDs
cerebellar ataxia and mental retardation with or without quadrupedal locomotion 3
  • congenital cerebellar ataxia and mental retardation autosomal recessive
cerebellar hypoplasia and mental retardation with or without quadrupedal locomotion 1
  • vldlr-associated cerebellar hypoplasia
cerebellar ataxia
  • hemosiderosis, systemic, due to aceruloplasminemia
lymph node disease
  • disorder of lymph node
paraneoplastic cerebellar degeneration
- elite association - COSMIC cancer census association via MalaCards
Search CA8 in MalaCards View complete list of genes associated with diseases


  • Cerebellar ataxia, mental retardation, and dysequilibrium syndrome 3 (CMARQ3) [MIM:613227]: A congenital cerebellar ataxia associated with dysarthia, quadrupedal gait and mental retardation. {ECO:0000269 PubMed:19461874}. Note=The disease is caused by mutations affecting the gene represented in this entry.

Relevant External Links for CA8

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
Atlas of Genetics and Cytogenetics in Oncology and Haematology:
genes like me logo Genes that share disorders with CA8: view

No data available for Genatlas for CA8 Gene

Publications for CA8 Gene

  1. The deduced amino acid sequence of human carbonic anhydrase-related protein (CARP) is 98% identical to the mouse homologue. (PMID: 8482548) Skaggs L.A. … Tashian R.E. (Gene 1993) 3 4 23 67
  2. Carbonic anhydrase-related protein VIII promotes colon cancer cell growth. (PMID: 17219437) Nishikata M. … Onishi S. (Mol. Carcinog. 2007) 2 3 23
  3. Which carbonic anhydrases are targeted by the antiepileptic sulfonamides and sulfamates? (PMID: 19703035) De Simone G. … Supuran C.T. (Chem Biol Drug Des 2009) 25 26
  4. Carbonic anhydrase inhibitors as emerging drugs for the treatment of obesity. (PMID: 18537527) Supuran C.T. … De Simone G. (Expert Opin Emerg Drugs 2008) 25 26
  5. Therapeutic role of zonisamide in neuropsychiatric disorders. (PMID: 18782051) Farooq M.U. … Kassab M.Y. (Mini Rev Med Chem 2008) 25 26

Products for CA8 Gene

Sources for CA8 Gene