CBX1

CBX1
Available structures
PDB	Ortholog search: PDBe RCSB
List of PDB id codes
	3Q6S, 2FMM, 3F2U
Identifiers
Aliases	CBX1, CBX, HP1-BETA, HP1Hs-beta, HP1Hsbeta, M31, MOD1, p25beta, chromobox 1
External IDs	OMIM: 604511 MGI: 105369 HomoloGene: 89116 GeneCards: CBX1
Gene location (Human)
Chr.	Chromosome 17 (human)
End	48,101,478 bp
Gene location (Mouse)
Chr.	Chromosome 11 (mouse)
End	96,699,466 bp
RNA expression pattern
	Top expressed in
	ganglionic eminence; ; secondary oocyte; ; internal globus pallidus; ; endothelial cell; ; optic nerve; ; amniotic fluid; ; amygdala; ; cerebellar vermis; ; germinal epithelium; ; external globus pallidus;
	Top expressed in
	otic placode; ; saccule; ; abdominal wall; ; maxillary prominence; ; vas deferens; ; medullary collecting duct; ; pineal gland; ; primitive streak; ; renal corpuscle; ; somite;
	More reference expression data
	More reference expression data
Gene ontology
Molecular function	histone methyltransferase binding; enzyme binding; chromatin binding; protein binding; protein homodimerization activity; identical protein binding;
Cellular component	chromocenter; pericentric heterochromatin; chromatin; spindle; chromosome, centromeric region; male pronucleus; female pronucleus; nucleoplasm; nucleus; site of DNA damage;
Biological process	negative regulation of transcription, DNA-templated; cellular response to DNA damage stimulus;
	Sources:Amigo / QuickGO
Orthologs
	10951
	12412
	ENSG00000108468
	ENSMUSG00000018666
	P83916
	P83917
	NM_006807; NM_001127228
	NM_007622; NM_001362560; NM_001362561; NM_001362563; NM_001362564
	NP_001120700; NP_006798
	NP_031648; NP_001349489; NP_001349490; NP_001349492; NP_001349493
	Wikidata
View/Edit Human	View/Edit Mouse

Chromobox protein homolog 1 is a protein that in humans is encoded by the CBX1 gene.^[5]^[6]

Function[edit]

The protein is localized at heterochromatin sites, where it mediates gene silencing.^[6]

Interactions[edit]

CBX1 has been shown to interact with:

References[edit]

^ ^a ^b ^c GRCh38: Ensembl release 89: ENSG00000108468 – Ensembl, May 2017
^ ^a ^b ^c GRCm38: Ensembl release 89: ENSMUSG00000018666 – 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.
^ Furuta K, Chan EK, Kiyosawa K, Reimer G, Luderschmidt C, Tan EM (Jun 1997). "Heterochromatin protein HP1Hsbeta (p25beta) and its localization with centromeres in mitosis". Chromosoma. 106 (1): 11–9. doi:10.1007/s004120050219. PMID 9169582. S2CID 33460511.
^ ^a ^b "Entrez Gene: CBX1 chromobox homolog 1 (HP1 beta homolog Drosophila )".
^ Hughes-Davies L, Huntsman D, Ruas M, Fuks F, Bye J, Chin SF, Milner J, Brown LA, Hsu F, Gilks B, Nielsen T, Schulzer M, Chia S, Ragaz J, Cahn A, Linger L, Ozdag H, Cattaneo E, Jordanova ES, Schuuring E, Yu DS, Venkitaraman A, Ponder B, Doherty A, Aparicio S, Bentley D, Theillet C, Ponting CP, Caldas C, Kouzarides T (Nov 2003). "EMSY links the BRCA2 pathway to sporadic breast and ovarian cancer". Cell. 115 (5): 523–35. doi:10.1016/s0092-8674(03)00930-9. PMID 14651845. S2CID 18911371.
^ ^a ^b Nielsen AL, Oulad-Abdelghani M, Ortiz JA, Remboutsika E, Chambon P, Losson R (Apr 2001). "Heterochromatin formation in mammalian cells: interaction between histones and HP1 proteins". Molecular Cell. 7 (4): 729–39. doi:10.1016/S1097-2765(01)00218-0. hdl:10261/308369. PMID 11336697.
^ Aagaard L, Laible G, Selenko P, Schmid M, Dorn R, Schotta G, Kuhfittig S, Wolf A, Lebersorger A, Singh PB, Reuter G, Jenuwein T (Apr 1999). "Functional mammalian homologues of the Drosophila PEV-modifier Su(var)3-9 encode centromere-associated proteins which complex with the heterochromatin component M31". The EMBO Journal. 18 (7): 1923–38. doi:10.1093/emboj/18.7.1923. PMC 1171278. PMID 10202156.

Further reading[edit]

Lessard J, Baban S, Sauvageau G (Feb 1998). "Stage-specific expression of polycomb group genes in human bone marrow cells". Blood. 91 (4): 1216–24. doi:10.1182/blood.V91.4.1216. PMID 9454751.
Aagaard L, Laible G, Selenko P, Schmid M, Dorn R, Schotta G, Kuhfittig S, Wolf A, Lebersorger A, Singh PB, Reuter G, Jenuwein T (Apr 1999). "Functional mammalian homologues of the Drosophila PEV-modifier Su(var)3-9 encode centromere-associated proteins which complex with the heterochromatin component M31". The EMBO Journal. 18 (7): 1923–38. doi:10.1093/emboj/18.7.1923. PMC 1171278. PMID 10202156.
Minc E, Allory Y, Worman HJ, Courvalin JC, Buendia B (Aug 1999). "Localization and phosphorylation of HP1 proteins during the cell cycle in mammalian cells". Chromosoma. 108 (4): 220–34. doi:10.1007/s004120050372. PMID 10460410. S2CID 12381860.
Murzina N, Verreault A, Laue E, Stillman B (Oct 1999). "Heterochromatin dynamics in mouse cells: interaction between chromatin assembly factor 1 and HP1 proteins". Molecular Cell. 4 (4): 529–40. doi:10.1016/S1097-2765(00)80204-X. PMID 10549285.
Nielsen AL, Ortiz JA, You J, Oulad-Abdelghani M, Khechumian R, Gansmuller A, Chambon P, Losson R (Nov 1999). "Interaction with members of the heterochromatin protein 1 (HP1) family and histone deacetylation are differentially involved in transcriptional silencing by members of the TIF1 family". The EMBO Journal. 18 (22): 6385–95. doi:10.1093/emboj/18.22.6385. PMC 1171701. PMID 10562550.
Brasher SV, Smith BO, Fogh RH, Nietlispach D, Thiru A, Nielsen PR, Broadhurst RW, Ball LJ, Murzina NV, Laue ED (Apr 2000). "The structure of mouse HP1 suggests a unique mode of single peptide recognition by the shadow chromo domain dimer". The EMBO Journal. 19 (7): 1587–97. doi:10.1093/emboj/19.7.1587. PMC 310228. PMID 10747027.
Zhao T, Heyduk T, Allis CD, Eissenberg JC (Sep 2000). "Heterochromatin protein 1 binds to nucleosomes and DNA in vitro". The Journal of Biological Chemistry. 275 (36): 28332–8. doi:10.1074/jbc.M003493200. PMID 10882726.
Lachner M, O'Carroll D, Rea S, Mechtler K, Jenuwein T (Mar 2001). "Methylation of histone H3 lysine 9 creates a binding site for HP1 proteins". Nature. 410 (6824): 116–20. doi:10.1038/35065132. PMID 11242053. S2CID 4331863.
Bannister AJ, Zegerman P, Partridge JF, Miska EA, Thomas JO, Allshire RC, Kouzarides T (Mar 2001). "Selective recognition of methylated lysine 9 on histone H3 by the HP1 chromo domain". Nature. 410 (6824): 120–4. doi:10.1038/35065138. PMID 11242054. S2CID 4334447.
Nielsen AL, Oulad-Abdelghani M, Ortiz JA, Remboutsika E, Chambon P, Losson R (Apr 2001). "Heterochromatin formation in mammalian cells: interaction between histones and HP1 proteins". Molecular Cell. 7 (4): 729–39. doi:10.1016/S1097-2765(01)00218-0. hdl:10261/308369. PMID 11336697.
Andersen JS, Lyon CE, Fox AH, Leung AK, Lam YW, Steen H, Mann M, Lamond AI (Jan 2002). "Directed proteomic analysis of the human nucleolus". Current Biology. 12 (1): 1–11. Bibcode:2002CBio...12....1A. doi:10.1016/S0960-9822(01)00650-9. PMID 11790298. S2CID 14132033.
Scholzen T, Endl E, Wohlenberg C, van der Sar S, Cowell IG, Gerdes J, Singh PB (Feb 2002). "The Ki-67 protein interacts with members of the heterochromatin protein 1 (HP1) family: a potential role in the regulation of higher-order chromatin structure". The Journal of Pathology. 196 (2): 135–44. doi:10.1002/path.1016. PMID 11793364. S2CID 36130549.
Nielsen PR, Nietlispach D, Mott HR, Callaghan J, Bannister A, Kouzarides T, Murzin AG, Murzina NV, Laue ED (Mar 2002). "Structure of the HP1 chromodomain bound to histone H3 methylated at lysine 9". Nature. 416 (6876): 103–7. Bibcode:2002Natur.416..103N. doi:10.1038/nature722. PMID 11882902. S2CID 4423019.
Vassallo MF, Tanese N (Apr 2002). "Isoform-specific interaction of HP1 with human TAFII130". Proceedings of the National Academy of Sciences of the United States of America. 99 (9): 5919–24. Bibcode:2002PNAS...99.5919V. doi:10.1073/pnas.092025499. PMC 122877. PMID 11959914.
Hwang KK, Worman HJ (May 2002). "Gene regulation by human orthologs of Drosophila heterochromatin protein 1". Biochemical and Biophysical Research Communications. 293 (4): 1217–22. doi:10.1016/S0006-291X(02)00377-7. PMID 12054505.
Bhattacharya N, Wang Z, Davitt C, McKenzie IF, Xing PX, Magnuson NS (Jul 2002). "Pim-1 associates with protein complexes necessary for mitosis". Chromosoma. 111 (2): 80–95. doi:10.1007/s00412-002-0192-6. PMID 12111331. S2CID 26016943.
Lin CY, Li CC, Huang PH, Lee FJ (Dec 2002). "A developmentally regulated ARF-like 5 protein (ARL5), localized to nuclei and nucleoli, interacts with heterochromatin protein 1". Journal of Cell Science. 115 (Pt 23): 4433–45. doi:10.1242/jcs.00123. PMID 12414990. S2CID 16851984.
Festenstein R, Pagakis SN, Hiragami K, Lyon D, Verreault A, Sekkali B, Kioussis D (Jan 2003). "Modulation of heterochromatin protein 1 dynamics in primary Mammalian cells". Science. 299 (5607): 719–21. Bibcode:2003Sci...299..719F. doi:10.1126/science.1078694. PMID 12560554. S2CID 26661977.

External links[edit]

CBX1+protein,+human at the U.S. National Library of Medicine Medical Subject Headings (MeSH)
Human CBX1 genome location and CBX1 gene details page in the UCSC Genome Browser.

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

[refGRCh38Ensembl-1] GRCh38: Ensembl release 89: ENSG00000108468 – Ensembl, May 2017

[refGRCm38Ensembl-2] GRCm38: Ensembl release 89: ENSMUSG00000018666 – 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.

[pmid9169582-5] Furuta K, Chan EK, Kiyosawa K, Reimer G, Luderschmidt C, Tan EM (Jun 1997). "Heterochromatin protein HP1Hsbeta (p25beta) and its localization with centromeres in mitosis". Chromosoma. 106 (1): 11–9. doi:10.1007/s004120050219. PMID 9169582. S2CID 33460511.

[entrez-6] "Entrez Gene: CBX1 chromobox homolog 1 (HP1 beta homolog Drosophila )".

[pmid14651845-7] Hughes-Davies L, Huntsman D, Ruas M, Fuks F, Bye J, Chin SF, Milner J, Brown LA, Hsu F, Gilks B, Nielsen T, Schulzer M, Chia S, Ragaz J, Cahn A, Linger L, Ozdag H, Cattaneo E, Jordanova ES, Schuuring E, Yu DS, Venkitaraman A, Ponder B, Doherty A, Aparicio S, Bentley D, Theillet C, Ponting CP, Caldas C, Kouzarides T (Nov 2003). "EMSY links the BRCA2 pathway to sporadic breast and ovarian cancer". Cell. 115 (5): 523–35. doi:10.1016/s0092-8674(03)00930-9. PMID 14651845. S2CID 18911371.

[pmid11336697-8] Nielsen AL, Oulad-Abdelghani M, Ortiz JA, Remboutsika E, Chambon P, Losson R (Apr 2001). "Heterochromatin formation in mammalian cells: interaction between histones and HP1 proteins". Molecular Cell. 7 (4): 729–39. doi:10.1016/S1097-2765(01)00218-0. hdl:10261/308369. PMID 11336697.

[pmid10202156-9] Aagaard L, Laible G, Selenko P, Schmid M, Dorn R, Schotta G, Kuhfittig S, Wolf A, Lebersorger A, Singh PB, Reuter G, Jenuwein T (Apr 1999). "Functional mammalian homologues of the Drosophila PEV-modifier Su(var)3-9 encode centromere-associated proteins which complex with the heterochromatin component M31". The EMBO Journal. 18 (7): 1923–38. doi:10.1093/emboj/18.7.1923. PMC 1171278. PMID 10202156.

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Function[edit]

Interactions[edit]

See also[edit]

References[edit]

Further reading[edit]

External links[edit]