Fields »

GENE AND PROTEIN SUMMARY

? »

Gene name

ABCG2

Description

ATP-binding cassette, sub-family G (WHITE), member 2

Protein class

Candidate cancer biomarkers, CD markers, Mapped to UniProt SWISS-PROT, Potential transmembrane proteins

Protein evidence

High

Entrez gene summary

The membrane-associated protein encoded by this gene is included in the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the White subfamily. Alternatively referred to as a breast cancer resistance protein, this protein functions as a xenobiotic transporter which may play a major role in multi-drug resistance. It likely serves as a cellular defense mechanism in response to mitoxantrone and anthracycline exposure. Significant expression of this protein has been observed in the placenta, which may suggest a potential role for this molecule in placenta tissue. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

4 in total
2 with predicted TM region
0 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

? »

Show image »

Main location(s)

Plasma membrane

Additional location(s)

 

Staining summary

Staining of plasma membrane in all three cell lines.

Reliability (Single)

Antibodies in assay

CAB037299
 

NORMAL TISSUE & ORGAN SUMMARY

? »

Show image »

Staining summary

Normal tissues showed moderate to strong cytoplasmic staining combined with membranous positivity in fractions of cases. Liver, pancreas, renal glomeruli, decidual cells, breast, leydig cells, smooth muscle and cells in CNS were weakly stained or negative.

Tissue specificity

Staining in 62 out of 82 cell types

Reliability (Single)

Antibodies in assay

CAB037299
 

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 12
Placenta 2
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 15
Endocrine tissues 3

Level of antibody staining





Strong
Moderate
Weak
Negative

CANCER TISSUE SUMMARY

? »

Staining summary

Antibody staining in 54% of the cancers

Antibodies in assay

CAB037299
 

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

High
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

 

CAB037299

A-431 Skin Low

-

Weak
A-549 Lung High

-

CACO-2 Colon Medium

-

HEK 293 Embryonal kidney Low

-

HeLa Cervix Low

-

Hep-G2 Liver Medium

-

MCF-7 Pleural effusion Medium

-

PC-3 Bone marrow Not detected

-

RT-4 Urinary bladder Medium

-

U-2 OS Bone Low

-

Weak
U-251 MG Brain Low

-

Weak

ANTIBODY SUMMARY

? »

Antibody

Clonality

Validation

CAB037299 msAb