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GENE AND PROTEIN SUMMARY

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Gene name

CEP57

Description

centrosomal protein 57kDa

Protein class

Mapped to UniProt SWISS-PROT, Potentially secreted proteins

Protein evidence

High

Entrez gene summary

This gene encodes a cytoplasmic protein called Translokin. This protein localizes to the centrosome and has a function in microtubular stabilization. The N-terminal half of this protein is required for its centrosome localization and for its multimerization, and the C-terminal half is required for nucleating, bundling and anchoring microtubules to the centrosomes. This protein specifically interacts with fibroblast growth factor 2 (FGF2), sorting nexin 6, Ran-binding protein M and the kinesins KIF3A and KIF3B, and thus mediates the nuclear translocation and mitogenic activity of the FGF2. It also interacts with cyclin D1 and controls nucleocytoplasmic distribution of the cyclin D1 in quiescent cells. This protein is crucial for maintaining correct chromosomal number during cell division. Mutations in this gene cause mosaic variegated aneuploidy syndrome, a rare autosomal recessive disorder. Multiple alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Aug 2011]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

13 in total
0 with predicted TM region
2 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Cytoskeleton (Microtubules)

Additional location(s)

Nucleus but not nucleoli, Cytoplasm 

Staining summary

Staining of cytoskeleton (microtubules) in A-431 and U-2 OS. Staining of cytoplasm and nucleus in U-251 MG.

Reliability (Single)

Antibodies in assay

HPA018315
 

NORMAL TISSUE & ORGAN SUMMARY

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Staining summary

Most of the normal tissues displayed moderate cytoplasmic positivity. Strong staining was seen in squamous epithelia and urothelia. Glial cells and bile duct cells were negative.

Tissue specificity

Staining in 69 out of 81 cell types

Reliability (Single)

Antibodies in assay

HPA018315
 

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 13
Placenta 2
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 13
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

HPA018315
 

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

HPA018315

HPA018315

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA018315 pAb