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GENE AND PROTEIN SUMMARY

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Gene name

CTBP2

Description

C-terminal binding protein 2

Protein class

Mapped to UniProt SWISS-PROT, Potential transmembrane proteins

Protein evidence

Medium

Entrez gene summary

This gene produces alternative transcripts encoding two distinct proteins. One protein is a transcriptional repressor, while the other isoform is a major component of specialized synapses known as synaptic ribbons. Both proteins contain a NAD+ binding domain similar to NAD+-dependent 2-hydroxyacid dehydrogenases. A portion of the 3' untranslated region was used to map this gene to chromosome 21q21.3; however, it was noted that similar loci elsewhere in the genome are likely. Blast analysis shows that this gene is present on chromosome 10. [provided by RefSeq, Jul 2008]

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)

Cytoplasm, Cytoskeleton (Intermediate filaments)

Additional location(s)

 

Staining summary

Localized to cytoplasm and intermediate filaments.

Reliability (APE)

Very low

Antibodies in assay

HPA023559, HPA023564, HPA044971
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Nuclear expression at variable levels in several different cell types.

Tissue specificity

Expressed in 49 out of 82 cell types

Reliability (APE)

Low

Antibodies in assay

HPA023559, HPA023564, CAB031916, HPA044971
 

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 15
Endocrine tissues 3

Level of annotated protein expression





High
Medium
Low
None

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 51% of the cancers

Antibodies in assay

HPA023559, HPA023564, CAB031916, HPA044971
 

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

HPA023559

HPA023564

CAB031916

HPA044971

HPA023559

HPA023564

HPA044971

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

Also mapped to

HPA023559 pAb
HPA023564 pAb
CAB031916 pAb
HPA044971 pAb
AC011841.1 (100%), CTBP1 (86%)