CHP2 calcineurin like EF-hand protein 2 [Homo sapiens (human)] - Gene

Summary

Official Symbol: CHP2provided by HGNC
Official Full Name: calcineurin like EF-hand protein 2provided by HGNC
Primary source: HGNC:HGNC:24927
See related: Ensembl:ENSG00000166869 AllianceGenome:HGNC:24927
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Homo sapiens
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Summary: This gene product is a small calcium-binding protein that regulates cell pH by controlling plasma membrane-type Na+/H+ exchange activity. This protein shares sequence similarity with calcineurin B and can bind to and stimulate the protein phosphatase activity of calcineurin A (CnA) and functions in the calcineurin/NFAT (nuclear factor of activated T cells) signaling pathway. Another member of the CHP subfamily, Calcineurin B homologous protein 1, is located on Chromosome 15 and is an inhibitor of calcineurin activity and has a genetic phenotype associated with Parkinson's Disease (OMIM:606988). This gene was initially identified as a tumor-associated antigen and was previously referred to as Hepatocellular carcinoma-associated antigen 520. [provided by RefSeq, Jul 2013]
Expression: Biased expression in duodenum (RPKM 110.6), small intestine (RPKM 92.6) and 2 other tissues See more
Orthologs: mouse all
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Genomic context

Location:: 16p12.2

Exon count:: 7

Annotation release	Status	Assembly	Chr	Location
RS_2024_08	current	GRCh38.p14 (GCF_000001405.40)	16	NC_000016.10 (23755026..23758935)
RS_2024_08	current	T2T-CHM13v2.0 (GCF_009914755.1)	16	NC_060940.1 (24028856..24032766)
RS_2024_09	previous assembly	GRCh37.p13 (GCF_000001405.25)	16	NC_000016.9 (23766347..23770256)

Chromosome 16 - NC_000016.10 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Involvement of CHP2 in the Development of Non-Small Cell Lung Cancer and Patients' Poor Prognosis.
Title: Involvement of CHP2 in the Development of Non-Small Cell Lung Cancer and Patients' Poor Prognosis.
the data support the tumor-promoting potential of aberrant calcineurin B homologous protein 2 expression and position calcineurin B homologous protein 2 as a potential therapeutic target for the treatment of non-small cell lung cancer.
Title: Calcineurin homologous protein isoform 2 supports tumor survival via the sodium hydrogen exchanger isoform 1 in non-small cell lung cancer.
we demonstrated that overexpression of CHP2 enhanced G1-S phase transition mediated by AKT activation, which subsequently induced phosphorylation and inactivation of FOXO3a in breast cancer cells.
Title: CHP2 Promotes Cell Proliferation in Breast Cancer via Suppression of FOXO3a.
CHP2 expression is significantly downregulated in human masticatory mucosa during wound healing
Title: Human gingiva transcriptome during wound healing.
chp2 expression in leukemia primary cells and leukemia cell lines is significantly increased.
Title: [Expression of a tumor related gene chp2 in leukemia cells].
overexpression of the CHP2 gene affects the biological behavior of ovarian cancer cell line OVCAR3 and is one of key mechanisms for ovarian carcinoma progression
Title: Overexpression of CHP2 enhances tumor cell growth, invasion and metastasis in ovarian cancer.
These findings suggest that CHP serves as an obligatory subunit that is required both for supporting the basic activity and regulating the pH-sensing of NHE1 via interactions between distinct parts of these proteins.
Title: Crystal structure of CHP2 complexed with NHE1-cytosolic region and an implication for pH regulation.

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Phenotypes

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Find tests for this gene in the NIH Genetic Testing Registry (GTR)

Review eQTL and phenotype association data in this region using PheGenI

EBI GWAS Catalog

Description
Duffy-null-associated low neutrophil counts influence HIV-1 susceptibility in high-risk South African black women. EBI GWAS Catalog EBI GWAS CatalogPubMed

Variation

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See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Markers

RH98447 (e-PCR)
- UniSTS:88938

NoName (e-PCR)
- UniSTS:482547

Gene Ontology Provided by GOA

Function	Evidence Code	Pubs
enables calcium ion binding	IBA Inferred from Biological aspect of Ancestor more info
enables calcium ion binding	IDA Inferred from Direct Assay more info	PubMed
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed

Process	Evidence Code	Pubs
involved_in cellular response to calcium ion	IDA Inferred from Direct Assay more info	PubMed
involved_in positive regulation of calcineurin-NFAT signaling cascade	IBA Inferred from Biological aspect of Ancestor more info
involved_in positive regulation of calcineurin-NFAT signaling cascade	IDA Inferred from Direct Assay more info	PubMed
involved_in positive regulation of cell population proliferation	IDA Inferred from Direct Assay more info	PubMed
involved_in positive regulation of phosphatase activity	IDA Inferred from Direct Assay more info	PubMed
involved_in positive regulation of protein import into nucleus	IDA Inferred from Direct Assay more info	PubMed
involved_in positive regulation of transcription by RNA polymerase II	IDA Inferred from Direct Assay more info	PubMed
involved_in protein transport	IEA Inferred from Electronic Annotation more info

Component	Evidence Code	Pubs
located_in cytoplasm	IDA Inferred from Direct Assay more info	PubMed
located_in cytosol	IDA Inferred from Direct Assay more info
located_in nucleolus	IDA Inferred from Direct Assay more info
located_in nucleoplasm	IDA Inferred from Direct Assay more info
located_in nucleus	IDA Inferred from Direct Assay more info	PubMed
is_active_in plasma membrane	IBA Inferred from Biological aspect of Ancestor more info
located_in plasma membrane	IDA Inferred from Direct Assay more info	PubMed

General protein information

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Preferred Names: calcineurin B homologous protein 2

Names: hepatocellular carcinoma antigen gene 520; hepatocellular carcinoma-associated antigen 520

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.