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GENE AND PROTEIN SUMMARY

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Gene name

CHP1

Description

calcineurin-like EF hand protein 1

Protein class

Mapped to UniProt SWISS-PROT

Protein evidence

Medium

Entrez gene summary

This gene encodes a phosphoprotein that binds to the Na+/H+ exchanger NHE1. This protein serves as an essential cofactor which supports the physiological activity of NHE family members and may play a role in the mitogenic regulation of NHE1. The protein shares similarity with calcineurin B and calmodulin and it is also known to be an endogenous inhibitor of calcineurin activity. [provided by RefSeq, Jul 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Vesicles

Additional location(s)

Nucleus but not nucleoli 

Staining summary

Staining of vesicles in all three cell lines. Additional staining of nucleus in U-251 MG.

Reliability (Single)

Antibodies in assay

HPA006616
 

NORMAL TISSUE & ORGAN SUMMARY

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Staining summary

Moderate cytoplasmic positivity in several cases combined with nuclear staining was observed in most normal tissues. Membranous immunoreactivity was observed in several cases. Exocrine pancreas and most endocrine tissues as well as neuronal cells in CNS and subsets of cells in bone marrow were strongly stained.

Tissue specificity

Staining in 70 out of 79 cell types

Reliability (Single)

Antibodies in assay

HPA006616
 

Organ

No of cell types

Antibody staining

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 antibody staining





Strong
Moderate
Weak
Negative

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 82% of the cancers

Antibodies in assay

HPA006616
 

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

HPA006616

HPA006616

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA006616 pAb