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GENE AND PROTEIN SUMMARY

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Gene name

EIF2AK3

Description

eukaryotic translation initiation factor 2-alpha kinase 3

Protein class

Enzymes, Kinases, Mapped to UniProt SWISS-PROT, Potential transmembrane proteins, Potentially secreted proteins

Protein evidence

High

Entrez gene summary

The protein encoded by this gene phosphorylates the alpha subunit of eukaryotic translation-initiation factor 2 (EIF2), leading to its inactivation, and thus to a rapid reduction of translational initiation and repression of global protein synthesis. It is a type I membrane protein located in the endoplasmic reticulum (ER), where it is induced by ER stress caused by malfolded proteins. Mutations in this gene are associated with Wolcott-Rallison syndrome. [provided by RefSeq, Jan 2010]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Nucleus

Additional location(s)

Cytoplasm, Vesicles 

Staining summary

Staining of nucleus in U-251 MG and A-431 with additional staining of cytoplasm in U-251 MG and vesicles in A-431.

Reliability (Single)

Antibodies in assay

HPA015737
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Ubiquitous cytoplasmic expression combined with nuclear expression in several tissues.

Tissue specificity

Expressed in 80 out of 80 cell types

Reliability (APE)

Medium

Antibodies in assay

CAB009204, HPA015737
 

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 11
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 90% of the cancers

Antibodies in assay

CAB009204, HPA015737
 

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

Medium
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

HPA015737

HPA015737

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

CAB009204 pAb
HPA015737 pAb