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GENE AND PROTEIN SUMMARY

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Gene name

ABCB8

Description

ATP-binding cassette, sub-family B (MDR/TAP), member 8

Protein class

Mapped to UniProt SWISS-PROT, Potential transmembrane proteins

Entrez gene summary

The membrane-associated protein encoded by this gene is a member of 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 MDR/TAP subfamily. Members of the MDR/TAP subfamily are involved in multidrug resistance as well as antigen presentation. The function of this half-transporter has not yet been determined; however, it may involve the compartmentalization and transport of heme, as well as peptides, from the mitochondria to the nucleus and cytosol. This protein may also play a role in the transport of phospholipids into mitochondrial membranes. [provided by RefSeq, Jul 2008]

No of splice variants

15 in total
9 with predicted TM region
1 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Mitochondria

Additional location(s)

Nucleus, Nucleoli 

Staining summary

Staining of mitochondria in all three cell lines. Additional staining of nucleus/nucleolus.

Reliability (Single)

Antibodies in assay

HPA045187
 

NORMAL TISSUE & ORGAN SUMMARY

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Staining summary

Most normal tissues displayed moderate to strong cytoplasmic and nuclear staining.

Tissue specificity

Staining in 62 out of 65 cell types

Reliability (Single)

Antibodies in assay

HPA045187
 

Organ

No of cell types

Antibody staining

CNS (brain) 9
Hematopoietic (blood) 8
Liver and pancreas 5
Digestive (GI-tract) 11
Respiratory (lung) 4
Cardiovascular 1
Female tissues 10
Placenta 2
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 4
Endocrine tissues 3

Level of antibody staining





Strong
Moderate
Weak
Negative

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 93% of the cancers

Antibodies in assay

HPA045187
 

Tissue

Cancer staining

Normal tissue
staining

Breast cancer
 
Cervical cancer
 
 
Colorectal cancer
 
 
Endometrial cancer
 
 
Head and neck cancer
 
 
Liver cancer
 
 
Lung cancer
 
 
Malignant carcinoid
 
Malignant glioma
 
 
 
Malignant lymphoma
 
 
 
 

Tissue

Cancer staining

Normal tissue
staining

Malignant 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 level category

Medium
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

HPA045187

HPA045187

A-431 Skin Medium
Moderate
U-2 OS Bone Medium
Moderate
U-251 MG Brain Medium
Moderate

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA045187 pAb