Structural highlights
Function
[FUBP1_HUMAN] Regulates MYC expression by binding to a single-stranded far-upstream element (FUSE) upstream of the MYC promoter. May act both as activator and repressor of transcription.[1]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Gene regulation can be tightly controlled by recognition of DNA deformations that are induced by stress generated during transcription. The KH domains of the FUSE-binding protein (FBP), a regulator of c-myc expression, bind in vivo and in vitro to the single-stranded far-upstream element (FUSE), 1,500 base pairs upstream from the c-myc promoter. FBP bound to FUSE acts through TFIIH at the promoter. Here we report the solution structure of a complex between the KH3 and KH4 domains of FBP and a 29-base single-stranded DNA from FUSE. The KH domains recognize two sites, 9-10 bases in length, separated by 5 bases, with KH4 bound to the 5' site and KH3 to the 3' site. The central portion of each site comprises a tetrad of sequence 5'd-ATTC for KH4 and 5'd-TTTT for KH3. Dynamics measurements show that the two KH domains bind as articulated modules to single-stranded DNA, providing a flexible framework with which to recognize transient, moving targets.
Structure and dynamics of KH domains from FBP bound to single-stranded DNA.,Braddock DT, Louis JM, Baber JL, Levens D, Clore GM Nature. 2002 Feb 28;415(6875):1051-6. PMID:11875576[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Duncan R, Bazar L, Michelotti G, Tomonaga T, Krutzsch H, Avigan M, Levens D. A sequence-specific, single-strand binding protein activates the far upstream element of c-myc and defines a new DNA-binding motif. Genes Dev. 1994 Feb 15;8(4):465-80. PMID:8125259
- ↑ Braddock DT, Louis JM, Baber JL, Levens D, Clore GM. Structure and dynamics of KH domains from FBP bound to single-stranded DNA. Nature. 2002 Feb 28;415(6875):1051-6. PMID:11875576 doi:10.1038/4151051a
