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CA4
HPA
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  • CA4
PROTEIN SUMMARY GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

CA4
Synonyms CAIV, Car4, RP17
Gene descriptioni

Full gene name according to HGNC.

Carbonic anhydrase 4
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Disease related genes
Enzymes
FDA approved drug targets
Human disease related genes
Metabolic proteins
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Membrane, Intracellular
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 17
Cytoband q23.1
Chromosome location (bp) 60149942 - 60170899
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

4
Ensembl ENSG00000167434 (version 109)
Entrez gene 762
HGNC HGNC:1375
UniProt P22748 (UniProt - Evidence at protein level)
neXtProt NX_P22748
GeneCards CA4
Antibodypedia CA4 antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

Catalyzes the reversible hydration of carbon dioxide into bicarbonate and protons and thus is essential to maintaining intracellular and extracellular pH 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11. May stimulate the sodium/bicarbonate transporter activity of SLC4A4 that acts in pH homeostasis 12. It is essential for acid overload removal from the retina and retina epithelium, and acid release in the choriocapillaris in the choroid 13.... show less
Molecular function (UniProt)i

Keywords assigned by UniProt to proteins due to their particular molecular function.

Lyase
Ligand (UniProt)i

Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.

Metal-binding, Zinc
Gene summary (Entrez)i

Useful information about the gene from Entrez

Carbonic anhydrases (CAs) are a large family of zinc metalloenzymes that catalyze the reversible hydration of carbon dioxide. They participate in a variety of biological processes, including respiration, calcification, acid-base balance, bone resorption, and the formation of aqueous humor, cerebrospinal fluid, saliva, and gastric acid. They show extensive diversity in tissue distribution and in their subcellular localization. This gene encodes a glycosylphosphatidyl-inositol-anchored membrane isozyme expressed on the luminal surfaces of pulmonary (and certain other) capillaries and proximal renal tubules. Its exact function is not known; however, it may have a role in inherited renal abnormalities of bicarbonate transport. [provided by RefSeq, Jul 2008]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
CA4-201
ENSP00000300900
ENST00000300900
P22748
[Direct mapping] Carbonic anhydrase 4
Show all
Enzymes
   ENZYME proteins
   Lyases
Metabolic proteins
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   1TM proteins predicted by MDM
Disease related genes
FDA approved drug targets
   Small molecule drugs
Human disease related genes
   Nervous system diseases
   Eye disease
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0004089 [carbonate dehydratase activity]
GO:0005515 [protein binding]
GO:0005791 [rough endoplasmic reticulum]
GO:0005793 [endoplasmic reticulum-Golgi intermediate compartment]
GO:0005794 [Golgi apparatus]
GO:0005802 [trans-Golgi network]
GO:0005886 [plasma membrane]
GO:0006730 [one-carbon metabolic process]
GO:0008270 [zinc ion binding]
GO:0009897 [external side of plasma membrane]
GO:0009986 [cell surface]
GO:0015701 [bicarbonate transport]
GO:0016020 [membrane]
GO:0016324 [apical plasma membrane]
GO:0016829 [lyase activity]
GO:0016836 [hydro-lyase activity]
GO:0030658 [transport vesicle membrane]
GO:0030667 [secretory granule membrane]
GO:0031225 [anchored component of membrane]
GO:0031526 [brush border membrane]
GO:0046872 [metal ion binding]
GO:0048471 [perinuclear region of cytoplasm]
GO:0070062 [extracellular exosome]
Show all
312 aa
35 kDa
Yes 1
CA4-204
ENSP00000464757
ENST00000587265
K7EIH9
[Direct mapping] Carbonic anhydrase 4
Show all
Metabolic proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Nervous system diseases
   Eye disease
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0004089 [carbonate dehydratase activity]
GO:0005886 [plasma membrane]
GO:0008270 [zinc ion binding]
GO:0016020 [membrane]
GO:0031225 [anchored component of membrane]
GO:0046872 [metal ion binding]
Show all
99 aa
11.4 kDa
No 0
CA4-205
ENSP00000465837
ENST00000590203
K7EKY5
[Direct mapping] Carbonic anhydrase 4
Show all
Metabolic proteins
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   1TM proteins predicted by MDM
Human disease related genes
   Nervous system diseases
   Eye disease
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0004089 [carbonate dehydratase activity]
GO:0005886 [plasma membrane]
GO:0008270 [zinc ion binding]
GO:0016020 [membrane]
GO:0031225 [anchored component of membrane]
GO:0046872 [metal ion binding]
Show all
184 aa
20.7 kDa
No 1
CA4-206
ENSP00000466964
ENST00000591725
K7ENI8
[Direct mapping] Carbonic anhydrase 4
Show all
Metabolic proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Nervous system diseases
   Eye disease
Protein evidence (Ezkurdia et al 2014)
Show all
38 aa
4.2 kDa
No 0

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