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GENE AND PROTEIN SUMMARY

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Gene name

SYK

Description

spleen tyrosine kinase

Protein class

Enzymes, Kinases, Mapped to UniProt SWISS-PROT, Mutated genes in cancer, SH2-domain containing proteins

Protein evidence

High

Entrez gene summary

This gene encodes a member of the family of non-receptor type Tyr protein kinases. This protein is widely expressed in hematopoietic cells and is involved in coupling activated immunoreceptors to downstream signaling events that mediate diverse cellular responses, including proliferation, differentiation, and phagocytosis. It is thought to be a modulator of epithelial cell growth and a potential tumour suppressor in human breast carcinomas. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2010]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Cytoplasm

Additional location(s)

Nucleus but not nucleoli 

Staining summary

Localized to the nucleus and cytoplasm.

Reliability (APE)

Low

Antibodies in assay

HPA001384, CAB007773
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Distinct cytoplasmic expression in most tissues.

Tissue specificity

Expressed in 48 out of 80 cell types

Reliability (APE)

High

Antibodies in assay

HPA001384, CAB007773
 

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 12
Endocrine tissues 3

Level of annotated protein expression





High
Medium
Low
None

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 48% of the cancers

Antibodies in assay

HPA001384, CAB007773
 

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

HPA001384

CAB007773

HPA001384

CAB007773

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA001384 pAb
CAB007773 mAb