Vezni protein 3 heterohromatinskog proteina 1 jest protein koji je kod ljudi kodiran genom HP1BP3 sa hromosoma 1.[5] Identificiran je kao novi podtip veznog histona H1, uključenog u strukturu heterohromatina.[6][7][8]

HP1BP3
Dostupne strukture
PDBPretraga ortologa: PDBe RCSB
Spisak PDB ID kodova

2RQP

Identifikatori
AliasiHP1BP3
Vanjski ID-jeviOMIM: 616072 MGI: 109369 HomoloGene: 7774 GeneCards: HP1BP3
Lokacija gena (čovjek)
Hromosom 1 (čovjek)
Hrom.Hromosom 1 (čovjek)[1]
Hromosom 1 (čovjek)
Genomska lokacija za HP1BP3
Genomska lokacija za HP1BP3
Bend1p36.12Početak20,742,679 bp[1]
Kraj20,787,323 bp[1]
Lokacija gena (miš)
Hromosom 4 (miš)
Hrom.Hromosom 4 (miš)[2]
Hromosom 4 (miš)
Genomska lokacija za HP1BP3
Genomska lokacija za HP1BP3
Bend4|4 D3Početak137,943,607 bp[2]
Kraj137,971,994 bp[2]
Ontologija gena
Molekularna funkcija vezivanje sa DNK
nucleosome binding
GO:0001948, GO:0016582 vezivanje za proteine
chromatin binding
Ćelijska komponenta Nukleosom
jedro
hromosom
nuclear speck
Biološki proces regulation of nucleus size
nucleosome assembly
heterochromatin organization
GO:0009373 regulation of transcription, DNA-templated
regulation of cell population proliferation
cellular response to hypoxia
Izvori:Amigo / QuickGO
Ortolozi
VrsteČovjekMiš
Entrez
Ensembl
UniProt
RefSeq (mRNK)

NM_016287
NM_001372052

NM_001122896
NM_001122897
NM_001285478
NM_001285479
NM_001285480

NM_001285481
NM_010470
NM_001356431
NM_001356432

RefSeq (bjelančevina)
NP_057371
NP_001358981
NP_001363716
NP_001363717
NP_001363718

NP_001363719
NP_001363720
NP_001363721
NP_001363722
NP_001363723
NP_001363724
NP_001363725
NP_001363726

NP_001116368
NP_001116369
NP_001272407
NP_001272408
NP_001272409

NP_001272410
NP_034600
NP_001343360
NP_001343361

Lokacija (UCSC)Chr 1: 20.74 – 20.79 MbChr 4: 137.94 – 137.97 Mb
PubMed pretraga[3][4]
Wikipodaci
Pogledaj/uredi – čovjekPogledaj/uredi – miš

Aminokiselinska sekvenca

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Dužina polipeptidnog lanca je 553 aminokiseline, a molekulska težina 61.207 Da.[9]

1020304050
MATDTSQGELVHPKALPLIVGAQLIHADKLGEKVEDSTMPIRRTVNSTRE
TPPKSKLAEGEEEKPEPDISSEESVSTVEEQENETPPATSSEAEQPKGEP
ENEEKEENKSSEETKKDEKDQSKEKEKKVKKTIPSWATLSASQLARAQKQ
TPMASSPRPKMDAILTEAIKACFQKSGASVVAIRKYIIHKYPSLELERRG
YLLKQALKRELNRGVIKQVKGKGASGSFVVVQKSRKTPQKSRNRKNRSSA
VDPEPQVKLEDVLPLAFTRLCEPKEASYSLIRKYVSQYYPKLRVDIRPQL
LKNALQRAVERGQLEQITGKGASGTFQLKKSGEKPLLGGSLMEYAILSAI
AAMNEPKTCSTTALKKYVLENHPGTNSNYQMHLLKKTLQKCEKNGWMEQI
SGKGFSGTFQLCFPYYPSPGVLFPKKEPDDSRDEDEDEDESSEEDSEDEE
PPPKRRLQKKTPAKSPGKAASVKQRGSKPAPKVSAAQRGKARPLPKKAPP
KAKTPAKKTRPSSTVIKKPSGGSSKKPATSARKEVKLPGKGKSTMKKSFR
VKK

Modelni organizmi

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Fenotip Hp1bp3 nokaut-miševa
Svojstvo Fenotip
Vijabilnost homozigota Nenormalan
Studija recesivne letalnosti Normalan
Plodnost Normalan
Tjelesna težina Nenormalan[10]
Anksioznost otvorenog polja Normalan
Neurološka procjena Normalan
Jačina stiska Normalan
Test vruće ploče Normalan
Dismorfologija Normalan
Indirektna kalorimetrija Normalan
Test tolerancije glukoze Normalan
Slušni odgovor moždanog stabla Normalan
DEXA Nenormalan[11]
Radiografija Normalan
Tjelesna temperatura Normalan
Morfologija oka Normalan
Klinička hemija Nenormalan[12]
Hematologija Normalan
Leukociti periferne krvi Nenormalan
Mikronukleus test Normalan
Težina srca Nenormalan[13]
Histopatologija oka Normalan
Citrobacter infekcija Normalan[14]
Svi testovi i analize prema:[15][16]

U proučavanju funkcije HP1BP3 korišteni su modelni organizam. Uslovna linija nokaut-miševa, zvana Hp1bp3tm1a(EUCOMM)Wtsi[17][18] generirfana je kao dio programa Međunarodnog konzorcija za nokaut-miševe — visokopropusnog projekta mutageneze za generiranje i distribuciju modela životinjskih bolesti zainteresiranim naućnicima — na Institutu Wellcome Trust Sanger.[19][20][21] Mužjaci i ženke podvrgnuti su standardiziranom fenotipskom pregledu, kako bi se utvrdili efekti delecija.[15][22] Obavljena su 23 testa i prijavljeno je šest značajnih fenotipskih portemećaja. Tokom gestacije identifikovano je manje homozigotnih mutantnih embriona nego što je predviđeno Mendelovim omjerom. Homozigotne mutantne odrasle ženke imale su smanjenu tjelesnu težinu, težinu srca i mineralnu gustoću kostiju, te povećane razine ureje u krvi i broja T-ćelija.[15]

Nedostatak HP1BP3 kod miševa dovodi do teškog patuljastog oblika i oštećenja koštane mase, uzrokovane izmijenjenom endokrinom IGF-1 signalizacijom.[23] Gen je visoko eksprimiran u mozgu, a za miševe je opisan niz poremećenih fenotipova ponašanja. Nedostatak HP1BP3 doveo je do poremećenog ponašanja majke i smanjene anksioznosti, što je dovelo do dramatičnog smanjenja preživljavanja legla.[24] Ovo može biti povezano s odnosom između HP1BP3 i postporođajne depresije kod ljudi.[25] Konačno, HP1BP3 je umiješan i u Alzheimerovu bolest.[1].[26]

Reference

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  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000127483 - Ensembl, maj 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000028759 - Ensembl, maj 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: heterochromatin protein 1, binding protein 3". Pristupljeno 30. 8. 2011.
  6. ^ Garfinkel BP, Melamed-Book N, Anuka E, Bustin M, Orly J (februar 2015). "HP1BP3 is a novel histone H1 related protein with essential roles in viability and growth". Nucleic Acids Research. 43 (4): 2074–90. doi:10.1093/nar/gkv089. PMC 4344522. PMID 25662603.
  7. ^ Dutta B, Ren Y, Hao P, Sim KH, Cheow E, Adav S, Tam JP, Sze SK (septembar 2014). "Profiling of the Chromatin-associated Proteome Identifies HP1BP3 as a Novel Regulator of Cell Cycle Progression". Molecular & Cellular Proteomics. 13 (9): 2183–97. doi:10.1074/mcp.M113.034975. PMC 4159643. PMID 24830416.
  8. ^ Hayashihara K, Uchiyama S, Shimamoto S, Kobayashi S, Tomschik M, Wakamatsu H, No D, Sugahara H, Hori N, Noda M, Ohkubo T, Zlatanova J, Matsunaga S, Fukui K (februar 2010). "The middle region of an HP1-binding protein, HP1-BP74, associates with linker DNA at the entry/exit site of nucleosomal DNA". The Journal of Biological Chemistry. 285 (9): 6498–507. doi:10.1074/jbc.M109.092833. PMC 2825445. PMID 20042602.
  9. ^ "UniProt, Q5SSJ5" (jezik: eng.). Pristupljeno 29. 11. 2021.CS1 održavanje: nepoznati jezik (link)
  10. ^ "Body weight data for Hp1bp3". Wellcome Trust Sanger Institute.
  11. ^ "DEXA data for Hp1bp3". Wellcome Trust Sanger Institute.
  12. ^ "Clinical chemistry data for Hp1bp3". Wellcome Trust Sanger Institute.
  13. ^ "Heart weight data for Hp1bp3". Wellcome Trust Sanger Institute.
  14. ^ "Citrobacter infection data for Hp1bp3". Wellcome Trust Sanger Institute.
  15. ^ a b c Gerdin AK (2010). "The Sanger Mouse Genetics Programme: High throughput characterisation of knockout mice". Acta Ophthalmologica. 88 (S248). doi:10.1111/j.1755-3768.2010.4142.x. S2CID 85911512.
  16. ^ Mouse Resources Portal, Wellcome Trust Sanger Institute.
  17. ^ "International Knockout Mouse Consortium". Arhivirano s originala, 20. 3. 2012. Pristupljeno 29. 11. 2021.
  18. ^ "Mouse Genome Informatics".
  19. ^ 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 (juni 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.
  20. ^ Dolgin E (juni 2011). "Mouse library set to be knockout". Nature. 474 (7351): 262–3. doi:10.1038/474262a. PMID 21677718.
  21. ^ Collins FS, Rossant J, Wurst W (januar 2007). "A mouse for all reasons". Cell. 128 (1): 9–13. doi:10.1016/j.cell.2006.12.018. PMID 17218247. S2CID 18872015.
  22. ^ 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.
  23. ^ Garfinkel BP, Arad S, Le PT, Bustin M, Rosen CJ, Gabet Y, Orly J (decembar 2015). "Proportionate Dwarfism in Mice Lacking Heterochromatin Protein 1 Binding Protein 3 (HP1BP3) Is Associated With Alterations in the Endocrine IGF-1 Pathway". Endocrinology. 156 (12): 4558–70. doi:10.1210/en.2015-1668. PMC 5393342. PMID 26402843.
  24. ^ Garfinkel BP, Arad S, Neuner S, Netser S, Wagner S, Kaczorowski CC, Rosen CJ, Gal M, Soreq H, Orly J (juli 2016). "HP1BP3 expression determines maternal behavior and offspring survival". Genes, Brain, and Behavior. 15 (7): 678–88. doi:10.1111/gbb.12312. PMID 27470444. S2CID 3980338.
  25. ^ Guintivano J, Arad M, Gould TD, Payne JL, Kaminsky ZA (maj 2014). "Antenatal prediction of postpartum depression with blood DNA methylation biomarkers". Molecular Psychiatry. 19 (5): 560–7. doi:10.1038/mp.2013.62. PMC 7039252. PMID 23689534.
  26. ^ Neuner SM, Garfinkel BP, Wilmott LA, Ignatowska-Jankowska BM, Citri A, Orly J, Lu L, Overall RW, Mulligan MK, Kempermann G, Williams RW, O'Connell KM, Kaczorowski CC (juni 2016). "Systems genetics identifies Hp1bp3 as a novel modulator of cognitive aging". Neurobiology of Aging. 46: 58–67. doi:10.1016/j.neurobiolaging.2016.06.008. PMC 5018442. PMID 27460150.

Dopunska literatura

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