MAFB (gene)

Source: Wikipedia, the free encyclopedia.
MAFB
Available structures
Gene ontology
Molecular function
Cellular component
Biological process
Sources:Amigo / QuickGO
Ensembl
UniProt
RefSeq (mRNA)

NM_005461

NM_010658

RefSeq (protein)

NP_005452

NP_034788

Location (UCSC)Chr 20: 40.69 – 40.69 MbChr 2: 160.21 – 160.21 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Transcription factor MafB also known as V-maf musculoaponeurotic fibrosarcoma oncogene homolog B is a protein that in humans is encoded by the MAFB gene. This gene maps to chromosome 20q11.2-q13.1, consists of a single exon and spans around 3 kb.[5][6]

Function

MafB is a basic leucine zipper (

myeloid cells.[6]

Clinical significance

Mutations in the murine Mafb gene are responsible for the mutant mouse Kreisler (kr) that presents an abnormal segmentation of the hindbrain and exhibit hyperactive behavior, including head tossing and running in circles.[7] This mice dies at birth due to renal failure whereas the Mafb -/- mice dies of central apnea.[8]

Recently,

cleft lip and palate. [9] The GENEVA Cleft Consortium study, a genomewide association study involving 1,908 case-parent trios from Europe, the United States, China, Taiwan, Singapore, Korea, and the Philippines, first identified MAFB as being associated with cleft lip and/or palate with stronger genome-wide significance in Asian than European populations. The difference in populations could reflect variable coverage by available markers or true allelic heterogeneity. [10] In mouse models, Mafb mRNA and protein were detected in both craniofacial ectoderm and neural crest-derived mesoderm between embryonic days 13.5 and 14.5; expression was strong in the epithelium around the palatal shelves and in the medial edge epithelium during palatal fusion. After fusion, Mafb expression was stronger in oral epithelium compared to mesenchymal tissue.[9] In addition, sequencing analysis detected a new missense mutation in the Filipino population, H131Q, that was significantly more frequent in cases than in matched controls.[9] The gene-poor regions either side of the MAFB gene include numerous binding sites for transcription factors that are known to have a role in palate development. [11]

References

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000204103Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000074622Ensembl, 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.
  5. PMID 10444328
    .
  6. ^ a b "Entrez Gene: MAFB v-maf musculoaponeurotic fibrosarcoma oncogene homolog B (avian)".
  7. S2CID 19938958
    .
  8. .
  9. ^ .
  10. ^ Dixon MJ, Marazita ML, Beaty TH, Murray JC. 2011. Cleft lip and palate: understanding genetic and environmental influences. Nature Reviews Genetics. 12: 167-178
  11. ^ Dixon MJ, Marazita ML, Beaty TH, Murray JC. 2011. Cleft lip and palate: understanding genetic and environmental influences. Nature Reviews Genetics. 12: 167-178

Further reading

External links

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