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User:Rockpocket/Baz1b

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Tyrosine-protein kinase BAZ1B is an enzyme that in humans is encoded by the BAZ1B gene.[1][2][3]

This gene encodes a member of the bromodomain protein family. The bromodomain is a structural motif characteristic of proteins involved in chromatin-dependent regulation of transcription. This gene is deleted in Williams-Beuren syndrome, a developmental disorder caused by deletion of multiple genes at 7q11.23.[3]

Animal models

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Model organisms have been used in the study of BAZ1B function. A conditional knockout mouse line, called Baz1btm2a(KOMP)Wtsi,[4] 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 — at the Wellcome Trust Sanger Institute.[5][6][7]

Male and female animals underwent a standardized phenotypic screen to determine the effects of deletion.[7][8][9]


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Baz1b knockout mouse phenotype
Characteristic Abnormal
Homozygote viability Yes[10]
Body weight Yes[11]
All other tests No
Hair follicle cycling
Anxiety
Modified SHIRPA
Grip strength
Dysmorphology
Indirect calorimetry
Glucose tolerance test
Auditory brainstem response
DEXA
Radiography
Body temperature
Eye morphology
Heart weight
Heart histology
Histology
Clinical chemistry
Plasma immunoglobulins
Haematology
Peripheral blood lymphocytes
Micronucleus test
Salmonella infection
Citrobacter infection
All tests and analysis from [8][9]

Six significant phenotypes were reported:[9]

Interactions

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BAZ1B has been shown to interact with CHAF1B,[12] TOP2B,[12] SMARCC2,[12] SMARCC1,[12] SMARCB1,[12] SUPT16H[12] and Calcitriol receptor.[12]

References

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  1. ^ Peoples RJ, Cisco MJ, Kaplan P, Francke U (Feb 1999). "Identification of the WBSCR9 gene, encoding a novel transcriptional regulator, in the Williams-Beuren syndrome deletion at 7q11.23". Cytogenet Cell Genet. 82 (3–4): 238–46. doi:10.1159/000015110. PMID 9858827.{{cite journal}}: CS1 maint: date and year (link) CS1 maint: multiple names: authors list (link)
  2. ^ Lu X, Meng X, Morris CA, Keating MT (Jan 1999). "A novel human gene, WSTF, is deleted in Williams syndrome". Genomics. 54 (2): 241–9. doi:10.1006/geno.1998.5578. PMID 9828126.{{cite journal}}: CS1 maint: date and year (link) CS1 maint: multiple names: authors list (link)
  3. ^ a b "Entrez Gene: BAZ1B bromodomain adjacent to zinc finger domain, 1B".
  4. ^ KOMP. "Baz1btm2a(KOMP)Wtsi". www.knockoutmouse.org. Retrieved 24 June 2011. {{cite web}}: External link in |publisher= (help)
  5. ^ Dolgin E (June 2011). "Mouse library set to be knockout". Nature. 474 (7351): 262–263. doi:10.1038/474262a. PMID 21677718.{{cite journal}}: CS1 maint: date and year (link)
  6. ^ Collins FS, Rossant J, Wurst W (January 2007). "A mouse for all reasons". Cell. 128 (1): 9–13. doi:10.1016/j.cell.2006.12.018. PMID 17218247.{{cite journal}}: CS1 maint: date and year (link) CS1 maint: multiple names: authors list (link)
  7. ^ a b Van der Weyden L, White JK, Adams, DA, Logan DW (June 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.{{cite journal}}: CS1 maint: date and year (link) CS1 maint: multiple names: authors list (link) CS1 maint: unflagged free DOI (link)
  8. ^ a b 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.
  9. ^ a b c Wellcome Trust Sanger Institute. "MGP Phenotyping of Baz1btm2a(KOMP)Wtsi". Mouse Resources Portal. www.sanger.ac.uk. Retrieved 24 June 2011. {{cite web}}: External link in |publisher= (help)
  10. ^ Wellcome Trust Sanger Institute. "Viability at Weaning Data for Baz1b". Mouse Resources Portal. www.sanger.ac.uk. Retrieved 24 June 2011. {{cite web}}: External link in |publisher= (help)
  11. ^ Wellcome Trust Sanger Institute. "Weight Curves Data for Baz1b". Mouse Resources Portal. www.sanger.ac.uk. Retrieved 24 June 2011. {{cite web}}: External link in |publisher= (help)
  12. ^ a b c d e f g Kitagawa, Hirochika; Fujiki, Ryoji; Yoshimura, Kimihiro; Mezaki, Yoshihiro; Uematsu, Yoshikatsu; Matsui, Daisuke; Ogawa, Satoko; Unno, Kiyoe; Okubo, Mataichi; Tokita, Akifumi; Nakagawa, Takeya; Ito, Takashi; Ishimi, Yukio; Nagasawa, Hiromichi; Matsumoto, Toshio; Yanagisawa, Junn; Kato, Shigeaki (2003). "The chromatin-remodeling complex WINAC targets a nuclear receptor to promoters and is impaired in Williams syndrome". Cell. 113 (7). United States: 905–17. doi:10.1016/S0092-8674(03)00436-7. ISSN 0092-8674. PMID 12837248. {{cite journal}}: Check date values in: |year= (help); Cite has empty unknown parameters: |lay-date= and |lay-source= (help); Unknown parameter |month= ignored (help)CS1 maint: date and year (link) CS1 maint: year (link)

Further reading

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