Fields »

GENE AND PROTEIN SUMMARY

? »

Gene name

GNB3

Description

guanine nucleotide binding protein (G protein), beta polypeptide 3

Protein class

Mapped to UniProt SWISS-PROT

Protein evidence

High

Entrez gene summary

Heterotrimeric guanine nucleotide-binding proteins (G proteins), which integrate signals between receptors and effector proteins, are composed of an alpha, a beta, and a gamma subunit. These subunits are encoded by families of related genes. This gene encodes a beta subunit. Beta subunits are important regulators of alpha subunits, as well as of certain signal transduction receptors and effectors. A single-nucleotide polymorphism (C825T) in this gene is associated with essential hypertension and obesity. This polymorphism is also associated with the occurrence of the splice variant GNB3-s, which appears to have increased activity. GNB3-s is an example of alternative splicing caused by a nucleotide change outside of the splice donor and acceptor sites. Additional splice variants may exist for this gene, but they have not been fully described. [provided by RefSeq, Jul 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

? »

Show image »

Main location(s)

Plasma membrane

Additional location(s)

Golgi apparatus 

Staining summary

Staining of plasma membrane in all three cell lines with additional staining of the Golgi apparatus in A-431.

Reliability (Single)

Antibodies in assay

HPA040736
 

NORMAL TISSUE & ORGAN SUMMARY

? »

Show image »

Staining summary

Nasopharynx, gastrointestinal tract, exocrine pancreas, kidney, urinary bladder, epididymis, seminal vesicle, adrenal gland, liver and peripheral nerves showed moderate membranous and occasional cytoplasmic positivity. Salivary gland, renal tubules and gall bladder exhibited strong immunoreactivity. Remaining normal tissues were weakly stained or negative.

Tissue specificity

Staining in 48 out of 80 cell types

Reliability (Single)

Antibodies in assay

HPA040736
 

Organ

No of cell types

Antibody staining

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

Level of antibody staining





Strong
Moderate
Weak
Negative

CANCER TISSUE SUMMARY

? »

Staining summary

Antibody staining in 41% of the cancers

Antibodies in assay

HPA040736
 

Tissue

Cancer staining

Normal tissue
staining

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

Tissue

Cancer staining

Normal tissue
staining

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

? »

RNA evidence

Medium
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

HPA040736

HPA040736

A-431 Skin Low
Moderate
A-549 Lung Low
CACO-2 Colon Low
HEK 293 Embryonal kidney Medium
HeLa Cervix Medium
Hep-G2 Liver Low
MCF-7 Pleural effusion Low
PC-3 Bone marrow Low
RT-4 Urinary bladder Low
U-2 OS Bone Low
Weak
U-251 MG Brain Medium
Weak

ANTIBODY SUMMARY

? »

Antibody

Clonality

Validation

Also mapped to

HPA040736 pAb
GNB1 (90%), GNB2 (97%), GNB4 (100%)