2kv6

Tetrapeptide KWKK conjugated to oligonucleotide duplex by a trimethylene tether

spinqualitylabelsall models 2kv6 Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2kv6 is a 3 chain structure. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Solution NMR, 1 model Ligands: 0AD Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed DNA-protein conjugates are potentially repaired via proteolytic digestion to DNA-peptide conjugates. The latter have been modeled with the amino-terminal lysine of the peptide KWKK conjugated via a trimethylene linkage to the N(2)-dG amine positioned in 5'-d(GCTAGCXAGTCC)-3'.5'-d(GGACTCGCTAGC)-3' (X = N(2)-dG-trimethylene link-KWKK). This linkage is a surrogate for the reversible linkage formed by the gamma-OH-1,N(2)-propanodeoxyguanosine (gamma-OH-PdG) adduct. This conjugated KWKK stabilizes the DNA. Amino acids K(26), W(27), K(28), and K(29) are in the minor groove. The W(27) indolyl group does not intercalate into the DNA. The G(7) N(2) amine and the K(26) N-terminal amine nitrogens are in the trans configuration with respect to the C(alpha) or C(gamma) of the trimethylene tether, respectively. The structure of this DNA-KWKK conjugate is discussed in the context of its biological processing. Minor Groove Orientation of the KWKK Peptide Tethered via the N-Terminal Amine to the Acrolein-Derived 1,N(2)-gamma-Hydroxypropanodeoxyguanosine Lesion with a Trimethylene Linkage .,Huang H, Kozekov ID, Kozekova A, Rizzo CJ, McCullough AK, Lloyd RS, Stone MP Biochemistry. 2010 Jul 6. PMID:20604523 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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