H2AFB1

H2AB1
Identifiers
Aliases	H2AB1 , H2A.Bbd, H2A histone family member B1, H2A.B, H2A.B variant histone 1, H2AFB1
External IDs	MGI: 3644980 HomoloGene: 129517 GeneCards: H2AB1
Gene location (Human)
Chr.	X chromosome (human)
End	154,885,558 bp
Gene location (Mouse)
Chr.	X chromosome (mouse)
End	116,681,525 bp
Gene ontology
Molecular function	• DNA binding ; • protein heterodimerization activity ;
Cellular component	• nucleosome ; • transcriptionally active chromatin ; • nucleus ; • chromosome ;
Biological process	• nucleosome assembly ; • mRNA processing ; • chromatin silencing ; • chromatin organization ;
	Sources:Amigo / QuickGO
Orthologs
	474382
	624153
	ENSG00000274183
	ENSMUSG00000082482
	P0C5Y9
	S4R1M3
	NM_001017990
	NM_001281530
	NP_001017990
	NP_001268459
	Wikidata
View/Edit Human	View/Edit Mouse

Last updated September 01, 2021

Histone H2A-Bbd type 1 also known as H2A Barr body-deficient is a histone protein variant that in humans is encoded by the H2AFB1 gene (H2A histone family, member B1).^[5]

Function

Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Nucleosomes consist of approximately 146 bp of DNA wrapped around a histone octamer composed of pairs of each of the four core histones (H2A, H2B, H3, and H4). The chromatin fiber is further compacted through the interaction of a linker histone, H1, with the DNA between the nucleosomes to form higher order chromatin structures. This gene encodes a member of the histone H2A family. This gene is part of a region that is repeated three times on chromosome X, once in intron 22 of the F8 gene and twice closer to the Xq telomere. This record represents the most centromeric copy which is in intron 22 of the F8 gene.^[5]

Related Research Articles

Chromatin is a complex of DNA and protein found in eukaryotic cells. The primary function is to package long DNA molecules into more compact, denser structures. This prevents the strands from becoming tangled and also plays important roles in reinforcing the DNA during cell division preventing DNA damage and regulating gene expression and DNA replication. During mitosis and meiosis, chromatin facilitates proper segregation of the chromosomes in anaphase; the characteristic shapes of chromosomes visible during this stage are the result of DNA being coiled into highly condensed chromatin.

Core histone macro-H2A.1 is a protein that in humans is encoded by the H2AFY gene.

Histone H4 is a protein that in humans is encoded by the HIST2H4A gene.

Histone H2B type 3-B is a protein that in humans is encoded by the HIST3H2BB gene.

Histone H2A type 1-B/E is a protein that in humans is encoded by the HIST1H2AE gene.

Histone H2B type 1-A is a protein that in humans is encoded by the HIST1H2BA gene.

Histone H2A type 2-B is a protein that in humans is encoded by the HIST2H2AB gene.

Histone H2A.V is a protein that in humans is encoded by the H2AFV gene.

Histone H3.1 is a protein that in humans is encoded by the HIST1H3E gene.

Histone H4 is a protein that in humans is encoded by the HIST1H4D gene.

Histone H2A type 1-D is a protein that in humans is encoded by the HIST1H2AD gene.

Histone H2A.J is a protein that in humans is encoded by the H2AFJ gene.

Histone H3.1 is a protein that in humans is encoded by the HIST1H3J gene.

Histone H4 is a protein that in humans is encoded by the HIST1H4K gene.

Histone H4 is a protein that in humans is encoded by the HIST1H4H gene.

Histone H1oo is a protein that in humans is encoded by the H1FOO gene.

Histone H2A-Bbd type 2/3 also known as H2A Barr body-deficient is a histone protein that in humans is encoded by the H2AFB2 gene.

H2A histone family, member B3 is a protein that in humans is encoded by the H2AFB3 gene.

H2B histone family, member W, testis-specific is a protein that in humans is encoded by the H2BFWT gene.

Histone cluster 2 H3 family member a is a protein that in humans is encoded by the HIST2H3A gene.

References

1 2 3 GRCh38: Ensembl release 89: ENSG00000274183 - Ensembl, May 2017
1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000082482 - Ensembl, May 2017
↑ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
↑ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
1 2 "Entrez Gene: H2A histone family".

Strausberg RL, Feingold EA, Grouse LH, et al. (2002). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. Bibcode:2002PNAS...9916899M. doi: 10.1073/pnas.242603899 . PMC 139241 . PMID 12477932.
Chadwick BP, Willard HF (2001). "A Novel Chromatin Protein, Distantly Related to Histone H2a, Is Largely Excluded from the Inactive X Chromosome". J. Cell Biol. 152 (2): 375–84. doi:10.1083/jcb.152.2.375. PMC 2199617 . PMID 11266453.
Bao Y, Konesky K, Park YJ, et al. (2004). "Nucleosomes containing the histone variant H2A.Bbd organize only 118 base pairs of DNA". EMBO J. 23 (16): 3314–24. doi:10.1038/sj.emboj.7600316. PMC 514500 . PMID 15257289.
Naylor JA, Buck D, Green P, et al. (1995). "Investigation of the factor VIII intron 22 repeated region (int22h) and the associated inversion junctions". Hum. Mol. Genet. 4 (7): 1217–24. doi:10.1093/hmg/4.7.1217. PMID 8528212.
Ioudinkova ES, Barat A, Pichugin A, Markova E, Sklyar I, Pirozhkova I, Robin C, Lipinski M, Ogryzko V, Vassetzky YS, Razin SV (2012). "Distinct distribution of ectopically expressed histone variants H2A.Bbd and MacroH2A in open and closed chromatin domains". PLOS ONE. 7 (10): e47157. Bibcode:2012PLoSO...747157I. doi: 10.1371/journal.pone.0047157 . PMC 3484066 . PMID 23118866.
Tolstorukov MY, Goldman JA, Gilbert C, Ogryzko V, Kingston RE, Park PJ (August 2012). "Histone variant H2A.Bbd is associated with active transcription and mRNA processing in human cells". Mol. Cell. 47 (4): 596–607. doi:10.1016/j.molcel.2012.06.011. PMC 3708478 . PMID 22795134.

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[refGRCh38Ensembl-1] 1 2 3 GRCh38: Ensembl release 89: ENSG00000274183 - Ensembl, May 2017

[refGRCm38Ensembl-2] 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000082482 - 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.

[entrez-5] 1 2 "Entrez Gene: H2A histone family".

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H2AFB1

Contents

Function

Related Research Articles

References

Further reading