Structure-specific nucleic acid recognition by L-motifs and their diverse roles in expression and regulation of the genome.
Structure-specific nucleic acid recognition by L-motifs and their diverse roles in expression and regulation of the genome.
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DOI:
10.1016/j.bbagrm.2015.02.006
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发表时间:
2015-06
影响因子:
4.7
通讯作者:
Thapar, Roopa
中科院分区:
文献类型:
--
作者:
Thapar, Roopa
关键词:
The high-mobility group (HMG) domain containing proteins regulate transcription, DNA replication and recombination. They adopt L-shaped folds and are structure-specific DNA binding motifs. Here, I define the L-motif super-family that consists of DNA-binding HMG-box proteins and the L-motif of the histone mRNA binding domain of Stem-Loop Binding Protein (SLBP). The SLBP L-motif and HMG-box domains adopt similar L-shaped folds with three α-helices and two or three small hydrophobic cores that stabilize the overall fold, but have very different and distinct modes of nucleic acid recognition. A comparison of the structure, dynamics, protein-protein and nucleic acid interactions, and regulation by PTMs of the SLBP and the HMG-box L-motifs reveals the versatile and diverse modes by which L-motifs utilize their surfaces for structure-specific recognition of nucleic acids to regulate gene expression.
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