MAFB:JUN and EGR2 activate HOXB3 expression

Stable Identifier
R-HSA-5617661
Type
Reaction [omitted]
Species
Homo sapiens
Compartment
ReviewStatus
5/5
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As inferred from mouse embryos, the MAFB:JUN (KREISLER:JUN) heterodimer binds the rhombomere 5 (r5) enhancer located 5' to the P1 promoter of the HOXB3 gene and activates expression in r5. EGR2 (KROX20) also binds the r5 enhancer is required to activate the HOXB3 gene in r5. After initial activation HOXB3 is hypothesized to maintain its own expression. HOXB3 is expressed most strongly in r5 and more weakly in caudal rhombomeres r6 and r7.
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