单词 | Zinc Finger Motifs |
释义 | Zinc Finger Motifs《英文msh词典》Zinc Finger Motifs [入口词] Zinc Finger Motifs [主题词] Zinc Fingers [英文释义] Motifs in DNA- and RNA-binding proteins whose amino acids are folded into a single structural unit around a zinc atom. In the classic zinc finger,one zinc atom is bound to two cysteines and two histidines. In between the cysteines and histidines are 12 residues which form a DNA binding fingertip. By variations in the composition of the sequences in the fingertip and the number and spacing of tandem repeats of the motif,zinc fingers can form a large number of different sequence specific binding sites. |
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