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GENE AND PROTEIN SUMMARY

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Gene name

MED12

Description

mediator complex subunit 12

Protein class

Mapped to UniProt SWISS-PROT, Potential transmembrane proteins

Protein evidence

High

Entrez gene summary

The initiation of transcription is controlled in part by a large protein assembly known as the preinitiation complex. A component of this preinitiation complex is a 1.2 MDa protein aggregate called Mediator. This Mediator component binds with a CDK8 subcomplex which contains the protein encoded by this gene, mediator complex subunit 12 (MED12), along with MED13, CDK8 kinase, and cyclin C. The CDK8 subcomplex modulates Mediator-polymerase II interactions and thereby regulates transcription initiation and reinitation rates. The MED12 protein is essential for activating CDK8 kinase. Defects in this gene cause X-linked Opitz-Kaveggia syndrome, also known as FG syndrome, and Lujan-Fryns syndrome. [provided by RefSeq, Aug 2009]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Nucleus, Nucleoli

Additional location(s)

 

Staining summary

Mainly localized to the nucleus and nucleoli.

Reliability (APE)

Low

Antibodies in assay

HPA003184, HPA003185
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Ubiquitous nuclear expression in all tissues and cells.

Tissue specificity

Expressed in 79 out of 79 cell types

Reliability (APE)

High

Antibodies in assay

HPA003184, HPA003185
 

Organ

No of cell types

Protein expression

CNS (brain) 11
Hematopoietic (blood) 8
Liver and pancreas 5
Digestive (GI-tract) 12
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 91% of the cancers

Antibodies in assay

HPA003184, HPA003185
 

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

HPA003184

HPA003185

HPA003184

HPA003185

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA003184 pAb
HPA003185 pAb