CHCHD2

Last updated
CHCHD2
Identifiers
Aliases CHCHD2 , C7orf17, MNRR1, NS2TP, PARK22, coiled-coil-helix-coiled-coil-helix domain containing 2, MIX17B
External IDs OMIM: 616244 MGI: 1261428 HomoloGene: 49449 GeneCards: CHCHD2
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_016139
NM_001320327

NM_024166

RefSeq (protein)

NP_001307256
NP_057223

NP_077128

Location (UCSC) Chr 7: 56.1 – 56.11 Mb Chr 5: 129.91 – 129.92 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Coiled-coil-helix-coiled-coil-helix domain containing 2 is a protein that in humans is encoded by the CHCHD2 gene. [5]

Contents

Function

The protein encoded by this gene belongs to a class of eukaryotic CX(9)C proteins characterized by four cysteine residues spaced ten amino acids apart from one another. These residues form disulfide linkages that define a CHCH fold. In response to stress, the protein translocates from the mitochondrial intermembrane space to the nucleus where it binds to a highly conserved 13 nucleotide oxygen responsive element in the promoter of cytochrome oxidase 4I2, a subunit of the terminal enzyme of the electron transport chain.

In concert with recombination signal sequence-binding protein J, binding of this protein activates the oxygen responsive element at four percent oxygen. In addition, it has been shown that this protein is a negative regulator of mitochondria-mediated apoptosis. In response to apoptotic stimuli, mitochondrial levels of this protein decrease, allowing BCL2-associated X protein to oligomerize and activate the Caspase Cascade. Pseudogenes of this gene are found on multiple chromosomes. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016].

Related Research Articles

Bcl-2-associated X protein

Apoptosis regulator BAX, also known as bcl-2-like protein 4, is a protein that in humans is encoded by the BAX gene. BAX is a member of the Bcl-2 gene family. BCL2 family members form hetero- or homodimers and act as anti- or pro-apoptotic regulators that are involved in a wide variety of cellular activities. This protein forms a heterodimer with BCL2, and functions as an apoptotic activator. This protein is reported to interact with, and increase the opening of, the mitochondrial voltage-dependent anion channel (VDAC), which leads to the loss in membrane potential and the release of cytochrome c. The expression of this gene is regulated by the tumor suppressor P53 and has been shown to be involved in P53-mediated apoptosis.

Microphthalmia-associated transcription factor Mammalian protein found in Homo sapiens

Microphthalmia-associated transcription factor also known as class E basic helix-loop-helix protein 32 or bHLHe32 is a protein that in humans is encoded by the MITF gene.

CHUK

Inhibitor of nuclear factor kappa-B kinase subunit alpha (IKK-α) also known as IKK1 or conserved helix-loop-helix ubiquitous kinase (CHUK) is a protein kinase that in humans is encoded by the CHUK gene. IKK-α is part of the IκB kinase complex that plays an important role in regulating the NF-κB transcription factor. However, IKK-α has many additional cellular targets, and is thought to function independently of the NF-κB pathway to regulate epidermal differentiation.

ID2 Protein-coding gene in the species Homo sapiens

DNA-binding protein inhibitor ID-2 is a protein that in humans is encoded by the ID2 gene.

EPAS1 Protein-coding gene in the species Homo sapiens

Endothelial PAS domain-containing protein 1 is a protein that is encoded by the EPAS1 gene in mammals. It is a type of hypoxia-inducible factor, a group of transcription factors involved in the physiological response to oxygen concentration. The gene is active under hypoxic conditions. It is also important in the development of the heart, and for maintaining the catecholamine balance required for protection of the heart. Mutation often leads to neuroendocrine tumors.

NDUFA13

NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13 is an enzyme that in humans is encoded by the NDUFA13 gene. The NDUFA13 protein is a subunit of NADH dehydrogenase (ubiquinone), which is located in the mitochondrial inner membrane and is the largest of the five complexes of the electron transport chain.

BHLHB2 Protein-coding gene in the species Homo sapiens

Class E basic helix-loop-helix protein 40 is a protein that in humans is encoded by the BHLHE40 gene.

IMMT

Mitochondrial inner membrane protein is a protein that in humans is encoded by the IMMT gene.)

FIS1 Protein-coding gene in the species Homo sapiens

Mitochondrial fission 1 protein (FIS1) is a protein that in humans is encoded by the FIS1 gene on chromosome 7. This protein is a component of a mitochondrial complex, the ARCosome, that promotes mitochondrial fission. Its role in mitochondrial fission thus implicates it in the regulation of mitochondrial morphology, the cell cycle, and apoptosis. By extension, the protein is involved in associated diseases, including neurodegenerative diseases and cancers.

NDUFA5

NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 5 is an enzyme that in humans is encoded by the NDUFA5 gene. The NDUFA5 protein is a subunit of NADH dehydrogenase (ubiquinone), which is located in the mitochondrial inner membrane and is the largest of the five complexes of the electron transport chain.

Mitochondrial uncoupling protein 4

Mitochondrial uncoupling protein 4 is a protein that in humans is encoded by the SLC25A27 gene.

SAMM50

Sorting and assembly machinery component 50 homolog is a protein that in humans is encoded by the SAMM50 gene.

CCHCR1

Coiled-coil alpha-helical rod protein 1, also known as CCHCR1, is a protein which in humans is encoded by the CCHCR1 gene.

BHLHE41 Protein-coding gene in the species Homo sapiens

"Basic helix-loop-helix family, member e41", or BHLHE41, is a gene that encodes a basic helix-loop-helix transcription factor repressor protein in various tissues of both humans and mice. It is also known as DEC2, hDEC2, and SHARP1, and was previously known as "basic helix-loop-helix domain containing, class B, 3", or BHLHB3. BHLHE41 is known for its role in the circadian molecular mechanisms that influence sleep quantity as well as its role in immune function and the maturation of T helper type 2 cell lineages associated with humoral immunity.

NDUFA10

NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 10 is an enzyme that in humans is encoded by the NDUFA10 gene. The NDUFA10 protein is a subunit of NADH dehydrogenase (ubiquinone), which is located in the mitochondrial inner membrane and is the largest of the five complexes of the electron transport chain. Mutations in subunits of NADH dehydrogenase (ubiquinone), also known as Complex I, frequently lead to complex neurodegenerative diseases such as Leigh's syndrome. Furthermore, reduced NDUFA10 expression levels due to FOXM1-directed hypermethylation are associated with human squamous cell carcinoma and may be related to other forms of cancer.

MARCH5

E3 ubiquitin-protein ligase MARCH5, also known as membrane-associated ring finger (C3HC4) 5, is an enzyme that, in humans, is encoded by the MARCH5 gene. It is localized in the mitochondrial outer membrane and has four transmembrane domains.

TIMM50

Mitochondrial import inner membrane translocase subunit TIM50 is an protein that in humans is encoded by the TIMM50 gene. Tim50 is a subunit of the Tim23 translocase complex in the inner mitochondrial membrane. Mutations in TIMM50 can lead to epilepsy, severe intellectual disability, and 3-methylglutaconic aciduria. TIMM50 expression is increased in breast cancer cells and decreased in hypertrophic hearts.

ARNTL Protein-coding gene in the species Homo sapiens

Aryl hydrocarbon receptor nuclear translocator-like protein 1 (ARNTL) or Brain and Muscle ARNT-Like 1 (BMAL1) is a protein that in humans is encoded by the Bmal1 gene, also known as ARNTL, MOP3, and, less commonly, BHLHE5, BMAL, BMAL1C, JAP3, PASD3, and TIC.

FAM20C Protein-coding gene in the species Homo sapiens

Family with sequence similarity 20, member C also known as FAM20C or DMP4 is a protein which in humans is encoded by the FAM20C gene. Fam20C, a Golgi localized protein kinase, is a serine kinase that phosphorylates both casein and other highly acidic proteins and members of the small integrin-binding ligand, the N-linked glycoproteins (SIBLING) family at the target motif SerXGlu.

Coiled-coil-helix-coiled-coil-helix domain-containing protein 10, mitochondrial, also known as Protein N27C7-4 is a protein that in humans is encoded by the CHCHD10 gene.

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000106153 - Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000070493 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. "Entrez Gene: Coiled-coil-helix-coiled-coil-helix domain containing 2" . Retrieved 2018-02-21.

Further reading

This article incorporates text from the United States National Library of Medicine, which is in the public domain.