BBX (gene)

Bobby sox homolog (Drosophila)
Identifiers
Symbols	BBX ; ARTC1; HBP2; HSPC339; MDS001
External IDs	HomoloGene: 10634 GeneCards: BBX Gene
Gene ontology Molecular function • DNA binding Cellular component • nucleoplasm • cytoplasm Biological process • transcription, DNA-templated • regulation of transcription, DNA-templated • bone development Sources: Amigo / QuickGO
Orthologs
Species	Human	Mouse
Entrez	56987	70508
Ensembl	ENSG00000114439	ENSMUSG00000022641
UniProt	Q8WY36	Q8VBW5
RefSeq (mRNA)	NM_001142568	NM_027444
RefSeq (protein)	NP_001136040	NP_081720
Location (UCSC)	Chr 3: 107.52 – 107.81 Mb	Chr 16: 50.19 – 50.43 Mb
PubMed search

HMG box transcription factor BBX also known as bobby sox homolog or HMG box-containing protein 2 is a protein that in humans is encoded by the BBX gene.^[1]

Model organisms

Bbx knockout mouse phenotype

Characteristic	Phenotype
Homozygote viability	Normal
Fertility	Normal
Body weight	Normal
Anxiety	Normal
Neurological assessment	Normal
Grip strength	Normal
Hot plate	Normal
Dysmorphology	Normal
Indirect calorimetry	Normal
Glucose tolerance test	Normal
Auditory brainstem response	Normal
DEXA	Abnormal[2]
Radiography	Abnormal[3]
Body temperature	Normal
Eye morphology	Normal
Clinical chemistry	Normal
Plasma immunoglobulins	Abnormal
Haematology	Normal[4]
Peripheral blood lymphocytes	Normal
Micronucleus test	Normal
Heart weight	Abnormal[5]
Tail epidermis wholemount	Normal
Skin Histopathology	Normal
Brain histopathology	Normal
Salmonella infection	Normal[6]
Citrobacter infection	Normal[7]
All tests and analysis from[8][9]

Model organisms have been used in the study of BBX function. A conditional knockout mouse line, called Bbx^{tm1a(EUCOMM)Wtsi[10][11]} 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.^[12][13][14]

Male and female animals underwent a standardized phenotypic screen to determine the effects of deletion.^[8][15] Twenty six tests were carried out on homozygous mutant adult mice and four significant abnormalities were observed.^[8] A study of body composition found decreases in bone mineral density and content, and a reduction in body length in female mice, while mutants of both sexes showed a reduction in lean body mass. Radiography found that males had abnormal teeth morphology. Females had a decreased heart weight, and both sexes had reduced IgA levels in their plasma.^[8]

References

1. "Entrez Gene: bobby sox homolog (Drosophila)". Retrieved 2011-08-30.
2. "DEXA data for Bbx". Wellcome Trust Sanger Institute.
3. "Radiography data for Bbx". Wellcome Trust Sanger Institute.
4. "Haematology data for Bbx". Wellcome Trust Sanger Institute.
5. "Heart weight data for Bbx". Wellcome Trust Sanger Institute.
6. "Salmonella infection data for Bbx". Wellcome Trust Sanger Institute.
7. "Citrobacter infection data for Bbx". Wellcome Trust Sanger Institute.
8. 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.
9. Mouse Resources Portal, Wellcome Trust Sanger Institute.
10. "International Knockout Mouse Consortium".
11. "Mouse Genome Informatics".
12. 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.
13. Dolgin E (Jun 2011). "Mouse library set to be knockout". Nature 474 (7351): 262–3. doi:10.1038/474262a. PMID 21677718.
14. 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.
15. 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

• Caporaso N, Gu F, Chatterjee N, Sheng-Chih J, Yu K, Yeager M, Chen C, Jacobs K, Wheeler W, Landi MT, Ziegler RG, Hunter DJ, Chanock S, Hankinson S, Kraft P, Bergen AW (2009). "Genome-wide and candidate gene association study of cigarette smoking behaviors". PLOS ONE 4 (2): e4653. doi:10.1371/journal.pone.0004653. PMC 2644817. PMID 19247474.
• Wang HY, Peng G, Guo Z, Shevach EM, Wang RF (Mar 2005). "Recognition of a new ARTC1 peptide ligand uniquely expressed in tumor cells by antigen-specific CD4+ regulatory T cells". Journal of Immunology 174 (5): 2661–70. doi:10.4049/jimmunol.174.5.2661. PMID 15728473.
• Trynka G, Zhernakova A, Romanos J, Franke L, Hunt KA, Turner G, Bruinenberg M, Heap GA, Platteel M, Ryan AW, de Kovel C, Holmes GK, Howdle PD, Walters JR, Sanders DS, Mulder CJ, Mearin ML, Verbeek WH, Trimble V, Stevens FM, Kelleher D, Barisani D, Bardella MT, McManus R, van Heel DA, Wijmenga C (Aug 2009). "Coeliac disease-associated risk variants in TNFAIP3 and REL implicate altered NF-kappaB signalling". Gut 58 (8): 1078–83. doi:10.1136/gut.2008.169052. PMID 19240061.
• Bonaldo MF, Lennon G, Soares MB (Sep 1996). "Normalization and subtraction: two approaches to facilitate gene discovery". Genome Research 6 (9): 791–806. doi:10.1101/gr.6.9.791. PMID 8889548.
• Andersson B, Wentland MA, Ricafrente JY, Liu W, Gibbs RA (Apr 1996). "A "double adaptor" method for improved shotgun library construction". Analytical Biochemistry 236 (1): 107–13. doi:10.1006/abio.1996.0138. PMID 8619474.
• Sánchez-Díaz A, Blanco MA, Jones N, Moreno S (Sep 2001). "HBP2: a new mammalian protein that complements the fission yeast MBF transcription complex". Current Genetics 40 (2): 110–8. doi:10.1007/s002940100241. PMID 11680820.