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GENE AND PROTEIN SUMMARY

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Gene name

ABCG4

Description

ATP-binding cassette, sub-family G (WHITE), member 4

Protein class

Mapped to UniProt SWISS-PROT, Potential transmembrane proteins

Protein evidence

Only RNA

Entrez gene summary

The 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 and is expressed predominantly in liver tissue. The function has not yet been determined but may involve cholesterol transport. Alternate splice variants have been described but their full length sequences have not been determined. [provided by RefSeq, Jul 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Nucleus

Additional location(s)

Nucleoli 

Staining summary

Staining of nucleus in all three cell lines.

Reliability (Single)

Antibodies in assay

HPA040312
 

NORMAL TISSUE & ORGAN SUMMARY

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Staining summary

Most normal tissues displayed moderate to strong nuclear positivity which in a few cell types was combined with cytoplasmic staining. Neuronal cells showed strong cytoplasmic staining. Lymphoid tissues were weakly stained or negative.

Tissue specificity

Staining in 69 out of 79 cell types

Reliability (Single)

Antibodies in assay

HPA040312
 

Organ

No of cell types

Antibody staining

CNS (brain) 11
Hematopoietic (blood) 8
Liver and pancreas 5
Digestive (GI-tract) 12
Respiratory (lung) 4
Cardiovascular 1
Female tissues 12
Placenta 1
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 14
Endocrine tissues 3

Level of antibody staining





Strong
Moderate
Weak
Negative

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 75% of the cancers

Antibodies in assay

HPA040312
 

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

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RNA evidence

Low
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

HPA040312

HPA040312

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA040312 pAb