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GENE AND PROTEIN SUMMARY

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Gene name

AQP1

Description

aquaporin 1 (Colton blood group)

Protein class

Blood group antigen proteins, Mapped to UniProt SWISS-PROT, Potential transmembrane proteins, Potentially secreted proteins, Transporters

Protein evidence

High

Entrez gene summary

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]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

5 in total
5 with predicted TM region
0 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Plasma membrane

Additional location(s)

 

Staining summary

Staining of the plasma membrane in all three cell lines.

Reliability (Single)

Antibodies in assay

HPA019206
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Selective membranous expression in renal tubules, exocrine pancreas, bile ducts, subsets of cells in the intestine, myoepithelial cells of breast and endothelial cells. Caution: Based on antibodies targeting proteins from multiple genes.

Tissue specificity

Expressed in 16 out of 83 cell types

Reliability (APE)

High

Antibodies in assay

CAB001707, HPA019206, HPA030130
 

Organ

No of cell types

Protein expression

CNS (brain) 11
Hematopoietic (blood) 8
Liver and pancreas 5
Digestive (GI-tract) 13
Respiratory (lung) 4
Cardiovascular 1
Female tissues 13
Placenta 2
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 15
Endocrine tissues 3

Level of annotated protein expression





High
Medium
Low
None

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 24% of the cancers

Antibodies in assay

CAB001707, HPA019206, HPA030130
 

Tissue

Cancer staining

Protein
expression of
normal tissue

Breast cancer
 
Carcinoid
 
Cervical cancer
 
 
Colorectal cancer
 
 
Endometrial cancer
 
 
Glioma
 
Head and neck cancer
 
 
Liver cancer
 
 
Lung cancer
 
 
Lymphoma
 
 
 

Tissue

Cancer staining

Protein
expression of
normal tissue

Melanoma
 
Ovarian cancer
 
Pancreatic cancer
 
Prostate cancer
 
Renal cancer
 
Skin cancer
 
Stomach cancer
 
 
Testis cancer
 
Thyroid cancer
 
Urothelial cancer
 

Level of antibody staining





Strong
Moderate
Weak
Negative

CELL LINE SUMMARY

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RNA evidence

Medium
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

CAB001707

HPA019206

HPA030130

HPA019206

A-431 Skin Low
Moderate
A-549 Lung Low
CACO-2 Colon Low
HEK 293 Embryonal kidney Low
HeLa Cervix Medium
Hep-G2 Liver Not detected
MCF-7 Pleural effusion Not detected
PC-3 Bone marrow Low
RT-4 Urinary bladder Not detected
U-2 OS Bone Medium
Moderate
U-251 MG Brain Low
Weak

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

Also mapped to

CAB001707 pAb
HPA019206 pAb
RP5-877J2.1 (100%)
HPA030130 pAb
FAM188B (100%), RP5-877J2.1 (86%)