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GENE AND PROTEIN SUMMARY

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Gene name

STAT1

Description

signal transducer and activator of transcription 1, 91kDa

Protein class

Mapped to UniProt SWISS-PROT, SH2-domain containing proteins, Transcription factors

Protein evidence

High

Entrez gene summary

The protein encoded by this gene is a member of the STAT protein family. In response to cytokines and growth factors, STAT family members are phosphorylated by the receptor associated kinases, and then form homo- or heterodimers that translocate to the cell nucleus where they act as transcription activators. This protein can be activated by various ligands including interferon-alpha, interferon-gamma, EGF, PDGF and IL6. This protein mediates the expression of a variety of genes, which is thought to be important for cell viability in response to different cell stimuli and pathogens. Two alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Jul 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Nucleus but not nucleoli, Cytoplasm

Additional location(s)

 

Staining summary

Localized to the cytoplasm and nucleus.

Reliability (APE)

High

Antibodies in assay

HPA000931, HPA000982
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Cytoplasmic and nuclear expression in selected tissues, most abundant in lymphoid tissues.

Tissue specificity

Expressed in 34 out of 82 cell types

Reliability (APE)

Medium

Antibodies in assay

HPA000931, HPA000982, CAB004049
 

Organ

No of cell types

Protein expression

CNS (brain) 11
Hematopoietic (blood) 8
Liver and pancreas 5
Digestive (GI-tract) 13
Respiratory (lung) 4
Cardiovascular 1
Female tissues 13
Placenta 2
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 14
Endocrine tissues 3

Level of annotated protein expression





High
Medium
Low
None

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 47% of the cancers

Antibodies in assay

HPA000931, HPA000982, CAB004049
 

Tissue

Cancer staining

Protein
expression of
normal tissue

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

Tissue

Cancer staining

Protein
expression of
normal tissue

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

HPA000931

HPA000982

CAB004049

HPA000931

HPA000982

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA000931 pAb
HPA000982 pAb
CAB004049 mAb