NCAPH

Condensin complex subunit 2 also known as chromosome-associated protein H (CAP-H) or non-SMC condensin I complex subunit H (NCAPH) is a protein that in humans is encoded by the NCAPH gene.[5][6] CAP-H is a subunit of condensin I, a large protein complex involved in chromosome condensation

NCAPH
Identifiers
AliasesNCAPH, BRRN1, CAP-H, non-SMC condensin I complex subunit H, MCPH23, CAPH
External IDsOMIM: 602332 MGI: 2444777 HomoloGene: 133986 GeneCards: NCAPH
Gene location (Human)
Chr.Chromosome 2 (human)[1]
Band2q11.2Start96,335,766 bp[1]
End96,377,091 bp[1]
RNA expression pattern
More reference expression data
Orthologs
SpeciesHumanMouse
Entrez

23397

215387

Ensembl

ENSG00000121152

ENSMUSG00000034906

UniProt

Q15003

Q8C156

RefSeq (mRNA)

NM_001281710
NM_001281711
NM_001281712
NM_015341

NM_144818

RefSeq (protein)

NP_001268639
NP_001268640
NP_001268641
NP_056156

NP_659067

Location (UCSC)Chr 2: 96.34 – 96.38 MbChr 2: 127.1 – 127.13 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Function

CAP-H is a member of the barr protein family and a regulatory subunit of the condensin complex. This complex is required for the conversion of interphase chromatin into condensed chromosomes. CAP-H is associated with mitotic chromosomes, except during the early phase of chromosome condensation. During interphase, the protein has a distinct punctate nucleolar localization.[6]

Model organisms

Model organisms have been used in the study of NCAPH function. A conditional knockout mouse line, called Ncaphtm1a(EUCOMM)Wtsi[11][12] was generated as part of the International Knockout Mouse Consortium program — a high-throughput mutagenesis project to generate and distribute animal models of disease to interested scientists.[13][14][15]

Male and female animals underwent a standardized phenotypic screen to determine the effects of deletion.[9][16] Twenty four tests were carried out on mutant mice and three significant abnormalities were observed.[9] No homozygous mutant embryos were identified during gestation, and therefore none survived until weaning. The remaining tests were carried out on heterozygous mutant adult mice and an increased susceptibility to bacterial infection was observed in male animals.[9]

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gollark: I'm aware `is not` is a single operator. It's just vaguely weird.
gollark: ```python>>> 'something' is not NoneTrue>>> 'something' is (not None)False```python.
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References
  1. GRCh38: Ensembl release 89: ENSG00000121152 - Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000034906 - 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. Cabello OA, Baldini A, Bhat M, Bellen H, Belmont JW (Dec 1997). "Localization of BRRN1, the human homologue of Drosophila barr, to 2q11.2". Genomics. 46 (2): 311–3. doi:10.1006/geno.1997.5021. PMID 9417923.
  6. "Entrez Gene: NCAPH non-SMC condensin I complex, subunit H".
  7. "Salmonella infection data for Ncaph". Wellcome Trust Sanger Institute.
  8. "Citrobacter infection data for Ncaph". Wellcome Trust Sanger Institute.
  9. Gerdin AK (2010). "The Sanger Mouse Genetics Programme: High throughput characterisation of knockout mice". Acta Ophthalmologica. 88: 925–7. doi:10.1111/j.1755-3768.2010.4142.x.
  10. Mouse Resources Portal, Wellcome Trust Sanger Institute.
  11. "International Knockout Mouse Consortium".
  12. "Mouse Genome Informatics".
  13. Skarnes WC, Rosen B, West AP, Koutsourakis M, Bushell W, Iyer V, Mujica AO, Thomas M, Harrow J, Cox T, Jackson D, Severin J, Biggs P, Fu J, Nefedov M, de Jong PJ, Stewart AF, Bradley A (Jun 2011). "A conditional knockout resource for the genome-wide study of mouse gene function". Nature. 474 (7351): 337–42. doi:10.1038/nature10163. PMC 3572410. PMID 21677750.
  14. Dolgin E (Jun 2011). "Mouse library set to be knockout". Nature. 474 (7351): 262–3. doi:10.1038/474262a. PMID 21677718.
  15. Collins FS, Rossant J, Wurst W (Jan 2007). "A mouse for all reasons". Cell. 128 (1): 9–13. doi:10.1016/j.cell.2006.12.018. PMID 17218247.
  16. van der Weyden L, White JK, Adams DJ, Logan DW (2011). "The mouse genetics toolkit: revealing function and mechanism". Genome Biology. 12 (6): 224. doi:10.1186/gb-2011-12-6-224. PMC 3218837. PMID 21722353.

Further reading
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