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GENE AND PROTEIN SUMMARY

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Gene name

CDK6

Description

cyclin-dependent kinase 6

Protein class

Candidate cancer biomarkers, Enzymes, Kinases, Mapped to UniProt SWISS-PROT, Mutated genes in cancer, Potential transmembrane proteins

Protein evidence

High

Entrez gene summary

The protein encoded by this gene is a member of the cyclin-dependent protein kinase (CDK) family. CDK family members are highly similar to the gene products of Saccharomyces cerevisiae cdc28, and Schizosaccharomyces pombe cdc2, and are known to be important regulators of cell cycle progression. This kinase is a catalytic subunit of the protein kinase complex that is important for cell cycle G1 phase progression and G1/S transition. The activity of this kinase first appears in mid-G1 phase, which is controlled by the regulatory subunits including D-type cyclins and members of INK4 family of CDK inhibitors. This kinase, as well as CDK4, has been shown to phosphorylate, and thus regulate the activity of, tumor suppressor protein Rb. Expression of this gene is up-regulated in some types of cancer. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Nov 2009]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

2 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

Additional location(s)

Cytoplasm 

Staining summary

Staining of nucleus in all three cell lines with additional staining of cytoplasm in U-251MG and U-2 OS.

Reliability (Single)

Antibodies in assay

HPA002637
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Cytoplasmic expression in many cell types which in cases was combined with nuclear expression. Highest expression in bone marrow poietic cells.

Tissue specificity

Expressed in 40 out of 80 cell types

Reliability (APE)

Medium

Antibodies in assay

HPA002637, CAB004363
 

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 12
Placenta 2
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 13
Endocrine tissues 3

Level of annotated protein expression





High
Medium
Low
None

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 45% of the cancers

Antibodies in assay

HPA002637, CAB004363
 

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

HPA002637

CAB004363

HPA002637

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA002637 pAb
CAB004363 mAb