请输入您要查询的百科知识：

　

词条 COA7
释义

  1. Structure

  2. Function

  3. Clinical significance

  4. Interactions

  5. References

{{Infobox gene}}Cytochrome c oxidase assembly factor 7 (putative) (COA7), also known as Beta-lactamase hap-like protein, Respiratory chain assembly factor 1 (RESA1), Sel1 repeat-containing protein 1 (SELRC1), or C1orf163 is a protein that in humans is encoded by the COA7 gene.[1][2][3] The protein encoded by COA7 is an assembly factor important for the mitochondrial respiratory chain.[4] Mutations in COA7 have been associated with cytochrome c oxidase deficiency resulting in spinocerebellar ataxia with axonal neuropathy type 3 and mitochondrial myopathy.[5][6]

Structure

COA7 is located on the p arm of chromosome 1 in position 32.3 and has 3 exons.[1] The COA7 gene produces a 25.7 kDa protein composed of 231 amino acids.[7][8] COA7, the protein encoded by this gene, is a member of the hcp beta-lactamase family. This protein has a series of 5 Sel1-like tetratricopeptide repeat domains.[6] It is also believed to be a soluble mitochondrial protein that contains large amounts of cysteine.[4] Additionally, COA7 contains an N-acetylalanine amino acid modification at position 2.[2][3]

Function

COA7 is a protein assembly factor that is important for normal mitochondrial respiratory chain activity. It is believed to be involved in the assembly of cytochrome c oxidase (complex IV), but may also have effects on complex I and even complex III as well. It has been suggested that COA7 is a mitochondrial soluble intermembrane space protein, however, others have indicated that this soluble protein may actually be localized to the mitochondrial matrix.[4][6]

Clinical significance

Mutations in COA7 have been associated with spinocerebellar ataxia with axonal neuropathy type 3 and mitochondrial myopathy resulting from cytochrome c oxidase (complex IV) deficiency. Complex IV deficiency is a disorder of the mitochondrial respiratory chain with heterogeneous clinical manifestations, ranging from isolated myopathy to severe multisystem disease affecting several tissues and organs.[9][3] In cases of pathogenic COA7 mutations, patient clinical manifestations can include sensory disturbance, decreased deep tendon reflexes, dysarthria, peripheral neuropathy, axonal sensorimotor neuropathy, ataxia, cerebellar and spinal cord atrophy, leukoencephalopathy, elevated serum creatine kinase levels, ragged-red fibers, and cognitive impairment. COA7 loss-of-function has been shown to lead to the disruption of oxidative phosphorylation, with cytochrome c oxidase activity being the most affected complex. Pathogenic variations have been known to include D6G, S149I, G144fs, and Y137C amino acid changes in addition to a c.115C>T exon 2 deletion.[5][6]

Interactions

COA7 has been shown to have 27 binary protein-protein interactions including 16 co-complex interactions. COA7 appears to interact with EFHC1, SNRPB, SUOX, AES, ENKD1, and GPSM3.[10]

References

1. ^1 {{cite web|url=https://www.ncbi.nlm.nih.gov/gene/65260|title=Entrez Gene: Cytochrome c oxidase assembly factor 7 (putative)|access-date=2018-08-08}}{{PD-notice}}
2. ^1 {{Cite web|url=https://www.uniprot.org/uniprot/Q96BR5|title=COA7 - Cytochrome c oxidase assembly factor 7 - Homo sapiens (Human) - COA7 gene & protein|website=www.uniprot.org|language=en|access-date=2018-08-08}}{{CC-notice|cc=by4}}
3. ^1 2 {{cite journal | vauthors = | title = UniProt: the universal protein knowledgebase | journal = Nucleic Acids Research | volume = 45 | issue = D1 | pages = D158-D169 | date = January 2017 | pmid = 27899622 | pmc = 5210571 | doi = 10.1093/nar/gkw1099 }}
4. ^1 2 {{cite journal | vauthors = Kozjak-Pavlovic V, Prell F, Thiede B, Götz M, Wosiek D, Ott C, Rudel T | title = C1orf163/RESA1 is a novel mitochondrial intermembrane space protein connected to respiratory chain assembly | journal = Journal of Molecular Biology | volume = 426 | issue = 4 | pages = 908–20 | date = February 2014 | pmid = 24333015 | doi = 10.1016/j.jmb.2013.12.001 }}
5. ^1 {{cite journal | vauthors = Higuchi Y, Okunushi R, Hara T, Hashiguchi A, Yuan J, Yoshimura A, Murayama K, Ohtake A, Ando M, Hiramatsu Y, Ishihara S, Tanabe H, Okamoto Y, Matsuura E, Ueda T, Toda T, Yamashita S, Yamada K, Koide T, Yaguchi H, Mitsui J, Ishiura H, Yoshimura J, Doi K, Morishita S, Sato K, Nakagawa M, Yamaguchi M, Tsuji S, Takashima H | title = Mutations in COA7 cause spinocerebellar ataxia with axonal neuropathy | journal = Brain | volume = 141 | issue = 6 | pages = 1622–1636 | date = June 2018 | pmid = 29718187 | pmc = 5972596 | doi = 10.1093/brain/awy104 }}
6. ^1 2 3 {{cite journal | vauthors = Martinez Lyons A, Ardissone A, Reyes A, Robinson AJ, Moroni I, Ghezzi D, Fernandez-Vizarra E, Zeviani M | title = COA7 (C1orf163/RESA1) mutations associated with mitochondrial leukoencephalopathy and cytochrome c oxidase deficiency | journal = Journal of Medical Genetics | volume = 53 | issue = 12 | pages = 846–849 | date = December 2016 | pmid = 27683825 | pmc = 5264227 | doi = 10.1136/jmedgenet-2016-104194 }}
7. ^{{Cite web|url=https://amino.heartproteome.org/web/protein/Q96BR5|title=Cardiac Organellar Protein Atlas Knowledgebase (COPaKB) —— Protein Information|last=Yao|first=Daniel|website=amino.heartproteome.org|access-date=2018-08-08}}
8. ^{{cite journal | vauthors = Zong NC, Li H, Li H, Lam MP, Jimenez RC, Kim CS, Deng N, Kim AK, Choi JH, Zelaya I, Liem D, Meyer D, Odeberg J, Fang C, Lu HJ, Xu T, Weiss J, Duan H, Uhlen M, Yates JR, Apweiler R, Ge J, Hermjakob H, Ping P | title = Integration of cardiac proteome biology and medicine by a specialized knowledgebase | journal = Circulation Research | volume = 113 | issue = 9 | pages = 1043–53 | date = October 2013 | pmid = 23965338 | pmc = 4076475 | doi = 10.1161/CIRCRESAHA.113.301151 }}
9. ^{{Cite web|url=https://www.uniprot.org/diseases/DI-01469|title=Mitochondrial complex IV deficiency|website=www.uniprot.org|language=en|access-date=2018-08-08}}{{CC-notice|cc=by4}}
10. ^{{cite web | url = https://www.ebi.ac.uk/intact/interactions?conversationContext=3&query=COA7 | title = 27 binary interactions found for search term COA7 | work = IntAct Molecular Interaction Database | publisher = EMBL-EBI | access-date = 2018-08-25 }}
{{NLM content}}{{Portal bar|Mitochondria|Gene Wiki|border=no}}

2 : Human proteins|Genes on human chromosome 1
随便看

　

开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。

　

Copyright © 2023 OENC.NET All Rights Reserved
京ICP备2021023879号 更新时间：2024/9/23 21:34:04