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GENE AND PROTEIN SUMMARY

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Gene name

PRKACB

Description

protein kinase, cAMP-dependent, catalytic, beta

Protein class

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

Protein evidence

High

Entrez gene summary

cAMP is a signaling molecule important for a variety of cellular functions. cAMP exerts its effects by activating the cAMP-dependent protein kinase, which transduces the signal through phosphorylation of different target proteins. The inactive kinase holoenzyme is a tetramer composed of two regulatory and two catalytic subunits. cAMP causes the dissociation of the inactive holoenzyme into a dimer of regulatory subunits bound to four cAMP and two free monomeric catalytic subunits. Four different regulatory subunits and three catalytic subunits have been identified in humans. The protein encoded by this gene is a member of the Ser/Thr protein kinase family and is a catalytic subunit of cAMP-dependent protein kinase. Several alternatively spliced transcript variants encoding distinct isoforms have been observed. [provided by RefSeq, Jun 2011]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Mitochondria

Additional location(s)

Nucleus but not nucleoli, Cytoplasm, Centrosome 

Staining summary

Staining of mitochondria in all three cell lines with additional staining of nucleus in A-431 and cytoplasm and centrosome in U-2 OS.

Reliability (Single)

Antibodies in assay

HPA029754
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Ubiquitous cytoplasmic expression at variable levels.

Tissue specificity

Expressed in 81 out of 81 cell types

Reliability (APE)

High

Antibodies in assay

CAB010363, HPA029754
 

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 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 96% of the cancers

Antibodies in assay

CAB010363, HPA029754
 

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

CAB010363

HPA029754

HPA029754

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

CAB010363 msAb
HPA029754 pAb