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GENE AND PROTEIN SUMMARY

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Gene name

FAS

Description

Fas (TNF receptor superfamily, member 6)

Protein class

Candidate cancer biomarkers, Candidate cardiovascular disease genes, CD markers, Mapped to UniProt SWISS-PROT, Mutated genes in cancer, Plasma proteins, Potential transmembrane proteins, Potentially secreted proteins

Protein evidence

High

Entrez gene summary

The protein encoded by this gene is a member of the TNF-receptor superfamily. This receptor contains a death domain. It has been shown to play a central role in the physiological regulation of programmed cell death, and has been implicated in the pathogenesis of various malignancies and diseases of the immune system. The interaction of this receptor with its ligand allows the formation of a death-inducing signaling complex that includes Fas-associated death domain protein (FADD), caspase 8, and caspase 10. The autoproteolytic processing of the caspases in the complex triggers a downstream caspase cascade, and leads to apoptosis. This receptor has been also shown to activate NF-kappaB, MAPK3/ERK1, and MAPK8/JNK, and is found to be involved in transducing the proliferating signals in normal diploid fibroblast and T cells. Several alternatively spliced transcript variants have been described, some of which are candidates for nonsense-mediated mRNA decay (NMD). The isoforms lacking the transmembrane domain may negatively regulate the apoptosis mediated by the full length isoform. [provided by RefSeq, Mar 2011]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

9 in total
3 with predicted TM region
9 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Plasma membrane, Cytoplasm

Additional location(s)

Nucleus 

Staining summary

Staining of the cytoplasm and plasma membrane in U-251 MG and A-431. Additional speckled staining of the nucleus in A-431.

Reliability (Single)

Antibodies in assay

HPA027444
 

NORMAL TISSUE & ORGAN SUMMARY

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Staining summary

The intestinal tract, gall bladder, Leydig cells, subsets of cells in renal tubules, endometrium and decidual cells showed moderate to strong membranous and/or cytoplasmic positivity. Remaining normal tissues were weakly stained or negative.

Tissue specificity

Staining in 33 out of 78 cell types

Reliability (Single)

Antibodies in assay

HPA027444
 

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 11
Placenta 2
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 12
Endocrine tissues 3

Level of antibody staining





Strong
Moderate
Weak
Negative

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 22% of the cancers

Antibodies in assay

HPA027444
 

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

High
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

HPA027444

HPA027444

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA027444 pAb