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Aliases for AQP1 Gene

Aliases for AQP1 Gene

  • Aquaporin 1 (Colton Blood Group) 2 3
  • CHIP28 3 4 6
  • Aquaporin 1 (Channel-Forming Integral Protein, 28kDa, CO Blood Group) 2 3
  • Water Channel Protein For Red Blood Cells And Kidney Proximal Tubule 3 4
  • Urine Water Channel 3 4
  • Aquaporin-CHIP 3 4
  • CO 3 6
  • Aquaporin 1 (Channel-Forming Integral Protein, 28kDa) 2
  • Channel-Like Integral Membrane Protein, 28-KDa 3
  • Colton Blood Group 2
  • Aquaporin 1 2
  • Aquaporin-1 3
  • AQP-CHIP 3
  • AQP-1 4

External Ids for AQP1 Gene

Previous HGNC Symbols for AQP1 Gene

  • CO

Previous GeneCards Identifiers for AQP1 Gene

  • GC07P030593
  • GC07P030693
  • GC07P030724
  • GC07P030917
  • GC07P030811
  • GC07P030894

Summaries for AQP1 Gene

Entrez Gene Summary for AQP1 Gene

  • Aquaporins are a family of small integral membrane proteins related to the major intrinsic protein (MIP or AQP0). This gene encodes an aquaporin which functions as a molecular water channel protein. It is a homotetramer with 6 bilayer spanning domains and N-glycosylation sites. The protein physically resembles channel proteins and is abundant in erythrocytes and renal tubes. The gene encoding this aquaporin is a possible candidate for disorders involving imbalance in ocular fluid movement. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2010]

GeneCards Summary for AQP1 Gene

AQP1 (Aquaporin 1 (Colton Blood Group)) is a Protein Coding gene. Diseases associated with AQP1 include priapism and polyhydramnios. Among its related pathways are Nanog in Mammalian ESC Pluripotency and Metabolism. GO annotations related to this gene include potassium channel activity and water channel activity. An important paralog of this gene is MIP.

UniProtKB/Swiss-Prot for AQP1 Gene

  • Forms a water-specific channel that provides the plasma membranes of red cells and kidney proximal tubules with high permeability to water, thereby permitting water to move in the direction of an osmotic gradient.

Tocris Summary for AQP1 Gene

  • Aquaporins (AQPs)�are integral membrane proteins that facilitate the transport of water across biological membranes along an osmotic gradient. There have been 13 AQP isoforms (AQP0-AQP12) identified in humans and rodents to date.

Gene Wiki entry for AQP1 Gene

No data available for PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for AQP1 Gene

Genomics for AQP1 Gene

Regulatory Elements for AQP1 Gene

Genomic Location for AQP1 Gene

30,911,800 bp from pter
30,925,516 bp from pter
13,717 bases
Plus strand

Genomic View for AQP1 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for AQP1 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for AQP1 Gene

Proteins for AQP1 Gene

  • Protein details for AQP1 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Protein Accession:
    Secondary Accessions:
    • B5BU39
    • E7EM69
    • E9PC21
    • F5GY19
    • Q8TBI5
    • Q8TDC1

    Protein attributes for AQP1 Gene

    269 amino acids
    Molecular mass:
    28526 Da
    Quaternary structure:
    • Homotetramer. Interacts with EPHB2; involved in endolymph production in the inner ear (By similarity). Identified in a complex with STOM.
    • Pharmacologically inhibited by submillimolar concentrations of mercury

    Three dimensional structures from OCA and Proteopedia for AQP1 Gene

    Alternative splice isoforms for AQP1 Gene


neXtProt entry for AQP1 Gene

Proteomics data for AQP1 Gene at MOPED

Post-translational modifications for AQP1 Gene

  • Glycosylation at Asn42 and Asn205
  • Modification sites at PhosphoSitePlus

Other Protein References for AQP1 Gene

Antibody Products

No data available for DME Specific Peptides for AQP1 Gene

Domains for AQP1 Gene

Gene Families for AQP1 Gene

  • AQP :Ion channels / Aquaporins
  • bloodgroup :Blood group antigens

Protein Domains for AQP1 Gene


Graphical View of Domain Structure for InterPro Entry



  • P29972
  • Aquaporins contain two tandem repeats each containing three membrane-spanning domains and a pore-forming loop with the signature motif Asn-Pro-Ala (NPA)
  • Belongs to the MIP/aquaporin (TC 1.A.8) family.
genes like me logo Genes that share domains with AQP1: view

Function for AQP1 Gene

Molecular function for AQP1 Gene

GENATLAS Biochemistry: aquaporin 1 (28kDa),water channel forming integral protein in red cells in the apical basolateral membranes of renal proximal tubule and descending limbs of Henles loop,also expressed in ciliary body,lens,corneal epithelium,retinal pigment epithelium (CHIP28),involved in transcellular endothelial fluid transport
UniProtKB/Swiss-Prot Function: Forms a water-specific channel that provides the plasma membranes of red cells and kidney proximal tubules with high permeability to water, thereby permitting water to move in the direction of an osmotic gradient.

Gene Ontology (GO) - Molecular Function for AQP1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005215 transporter activity --
GO:0005223 intracellular cGMP activated cation channel activity IDA 14561230
GO:0005267 potassium channel activity IMP 11914159
GO:0005372 water transmembrane transporter activity IDA 11914159
GO:0005515 protein binding IPI 16189514
genes like me logo Genes that share ontologies with AQP1: view
genes like me logo Genes that share phenotypes with AQP1: view

Animal Models for AQP1 Gene

MGI Knock Outs for AQP1:

Animal Model Products

CRISPR Products

miRNA for AQP1 Gene

miRTarBase miRNAs that target AQP1

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for AQP1

In Situ Assay Products

Flow Cytometry Products

No data available for Enzyme Numbers (IUBMB) , Transcription Factor Targeting and HOMER Transcription for AQP1 Gene

Localization for AQP1 Gene

Subcellular locations from UniProtKB/Swiss-Prot for AQP1 Gene

Cell membrane; Multi-pass membrane protein.

Subcellular locations from

Jensen Localization Image for AQP1 Gene COMPARTMENTS Subcellular localization image for AQP1 gene
Compartment Confidence
nucleus 5
plasma membrane 5
extracellular 4
cytoskeleton 2

Gene Ontology (GO) - Cellular Components for AQP1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005634 nucleus IDA 17645239
GO:0005737 cytoplasm IDA 16814974
GO:0005886 plasma membrane TAS --
GO:0005887 integral component of plasma membrane TAS 1722319
GO:0005903 brush border IDA 16133142
genes like me logo Genes that share ontologies with AQP1: view

Pathways for AQP1 Gene

genes like me logo Genes that share pathways with AQP1: view

PCR Array Products

Gene Ontology (GO) - Biological Process for AQP1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0003091 renal water homeostasis TAS --
GO:0003094 glomerular filtration IEA --
GO:0003097 renal water transport IDA 9096382
GO:0006182 cGMP biosynthetic process IDA 14561230
GO:0006810 transport --
genes like me logo Genes that share ontologies with AQP1: view

Compounds for AQP1 Gene

(1) HMDB Compounds for AQP1 Gene

Compound Synonyms Cas Number PubMed IDs
  • Dihydrogen oxide

(1) Drugbank Compounds for AQP1 Gene

Compound Synonyms Cas Number Type Actions PubMed IDs
  • Acetamidothiadiazolesulfonamide
59-66-5 target inhibitor

(4) IUPHAR Ligand for AQP1 Gene

Ligand Type Action Affinity Pubmed IDs
Hg2+ Inhibitor None
cGMP Activator Activation
tetraethylammonium Inhibitor None
Ag+ Inhibitor None

(48) Novoseek inferred chemical compound relationships for AQP1 Gene

Compound -log(P) Hits PubMed IDs
hgcl2 72.4 5
pcmbs 65.6 3
glycerol 52.7 15
vas-a 51.9 4
urea 43.7 8
genes like me logo Genes that share compounds with AQP1: view

Transcripts for AQP1 Gene

Unigene Clusters for AQP1 Gene

Aquaporin 1 (Colton blood group):
Representative Sequences:

CRISPR Products

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for AQP1

Primer Products

Flow Cytometry Products

Alternative Splicing Database (ASD) splice patterns (SP) for AQP1 Gene

No ASD Table

Relevant External Links for AQP1 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for AQP1 Gene

mRNA expression in normal human tissues for AQP1 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for AQP1 Gene

This gene is overexpressed in Pancreas (4.2).

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, and MOPED for AQP1 Gene

SOURCE GeneReport for Unigene cluster for AQP1 Gene Hs.76152

mRNA Expression by UniProt/SwissProt for AQP1 Gene

Tissue specificity: Detected in erythrocytes (at protein level). Expressed in a number of tissues including erythrocytes, renal tubules, retinal pigment epithelium, heart, lung, skeletal muscle, kidney and pancreas. Weakly expressed in brain, placenta and liver.
genes like me logo Genes that share expressions with AQP1: view

In Situ Assay Products

Orthologs for AQP1 Gene

This gene was present in the common ancestor of eukaryotes.

Orthologs for AQP1 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia AQP1 35
  • 99.26 (n)
  • 99.26 (a)
AQP1 36
  • 99 (a)
(Bos Taurus)
Mammalia AQP1 35
  • 89.1 (n)
  • 92.19 (a)
AQP1 36
  • 92 (a)
(Canis familiaris)
Mammalia AQP1 35
  • 89.22 (n)
  • 93.68 (a)
AQP1 36
  • 93 (a)
(Mus musculus)
Mammalia Aqp1 35
  • 88.1 (n)
  • 94.05 (a)
Aqp1 16
Aqp1 36
  • 94 (a)
(Monodelphis domestica)
Mammalia -- 36
  • 90 (a)
(Ornithorhynchus anatinus)
Mammalia -- 36
  • 71 (a)
(Rattus norvegicus)
Mammalia Aqp1 35
  • 87.86 (n)
  • 93.31 (a)
(Gallus gallus)
Aves AQP1 35
  • 76.33 (n)
  • 85.87 (a)
AQP1 36
  • 86 (a)
(Anolis carolinensis)
Reptilia -- 36
  • 79 (a)
-- 36
  • 83 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia aqp1 35
  • 73.16 (n)
  • 77.15 (a)
(Danio rerio)
Actinopterygii aqp1a.1 36
  • 60 (a)
aqp1a.2 35
  • 64.15 (n)
  • 62.61 (a)
aqp1a.2 36
  • 56 (a)
wufj33g04 35
African malaria mosquito
(Anopheles gambiae)
Insecta AgaP_AGAP008843 35
  • 55.6 (n)
  • 45.64 (a)
fruit fly
(Drosophila melanogaster)
Insecta CG7777 35
  • 50.48 (n)
  • 40.74 (a)
CG7777 37
  • 37 (a)
baker's yeast
(Saccharomyces cerevisiae)
Saccharomycetes AQY1 38
thale cress
(Arabidopsis thaliana)
eudicotyledons PIP2E 35
  • 51.02 (n)
  • 46.93 (a)
Species with no ortholog for AQP1:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • 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)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)

Evolution for AQP1 Gene

Gene Tree for AQP1 (if available)
Gene Tree for AQP1 (if available)

Paralogs for AQP1 Gene

Paralogs for AQP1 Gene

Selected SIMAP similar genes for AQP1 Gene using alignment to 6 proteins:

genes like me logo Genes that share paralogs with AQP1: view

Variants for AQP1 Gene

Polymorphic Variants from UniProtKB/Swiss-Prot for AQP1 Gene

AQP1 is responsible for the Colton blood group system. Approximately 92% of Caucasians are Co(A+B-) (Ala-46), approximately 8% are Co(A+B+), and only 0.2% are Co(A-B+) (Val-46). Co(A-B-) which is very rare, is due to a complete absence of AQP1

Sequence variations from dbSNP and Humsavar for AQP1 Gene

SNP ID Clin Chr 07 pos Sequence Context AA Info Type MAF
rs13600 -- 30,925,268(+) CTGTC(C/T)CTGGC utr-variant-3-prime
rs765839 -- 30,919,949(-) CCTTC(A/C/G)TGACT upstream-variant-2KB, intron-variant
rs765840 -- 30,919,869(+) GAAGC(A/T)ATCAG upstream-variant-2KB, intron-variant
rs1004317 -- 30,917,243(+) CGTGG(A/G)GGACA intron-variant
rs1004318 -- 30,918,793(+) GGCAG(C/T)CACAG intron-variant

Structural Variations from Database of Genomic Variants (DGV) for AQP1 Gene

Variant ID Type Subtype PubMed ID
nsv436557 CNV Deletion 17901297
nsv527038 CNV Gain 19592680
nsv887901 CNV Loss 21882294
dgv7241n71 CNV Gain 21882294
dgv7242n71 CNV Gain 21882294
nsv887906 CNV Gain+Loss 21882294
dgv7243n71 CNV Gain 21882294
nsv887908 CNV Loss 21882294
nsv887911 CNV Loss 21882294

Relevant External Links for AQP1 Gene

HapMap Linkage Disequilibrium report
Human Gene Mutation Database (HGMD)
Locus Specific Mutation Databases (LSDB)
Blood Group Antigen Gene Mutation Database (BGMUT)
Blood Group

Disorders for AQP1 Gene

(1) OMIM Diseases for AQP1 Gene (107776)

(3) University of Copenhagen DISEASES for AQP1 Gene

(45) Novoseek inferred disease relationships for AQP1 Gene

Disease -log(P) Hits PubMed IDs
diabetes insipidus nephrogenic 72.9 1
aqueous humor 51.7 5
antidiuresis 50.1 1
fuchs dystrophy 45.5 1
pancreas exocrine 42.6 3

Relevant External Links for AQP1

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
genes like me logo Genes that share disorders with AQP1: view

No data available for UniProtKB/Swiss-Prot for AQP1 Gene

Publications for AQP1 Gene

  1. Isolation of the cDNA for erythrocyte integral membrane protein of 28 kilodaltons: member of an ancient channel family. (PMID: 1722319) Preston G.M. … Agre P. (Proc. Natl. Acad. Sci. U.S.A. 1991) 2 3 4 23
  2. The mercury-sensitive residue at cysteine 189 in the CHIP28 water channel. (PMID: 7677994) Preston G.M. … Agre P. (J. Biol. Chem. 1993) 3 4 23
  3. The three-dimensional structure of aquaporin-1. (PMID: 9177353) Walz T. … Engel A. (Nature 1997) 3 4 23
  4. The water channel gene in human uterus. (PMID: 7517253) Li X. … Koide S.S. (Biochem. Mol. Biol. Int. 1994) 3 4 23
  5. Functional analysis of aquaporin-1 deficient red cells. The Colton-null phenotype. (PMID: 8576117) Mathai J.C. … Agre P. (J. Biol. Chem. 1996) 3 23

Products for AQP1 Gene

Sources for AQP1 Gene

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