4ot4

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X-ray Structure of the Adduct formed between cisplatin and Ribonuclease AX-ray Structure of the Adduct formed between cisplatin and Ribonuclease A

Structural highlights

4ot4 is a 2 chain structure with sequence from Bos taurus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.85Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

RNAS1_BOVIN Endonuclease that catalyzes the cleavage of RNA on the 3' side of pyrimidine nucleotides. Acts on single stranded and double stranded RNA.[1]

Publication Abstract from PubMed

The crystal structure of the main adduct formed in the reaction between cisplatin and bovine pancreatic ribonuclease is reported here. Notably, in both of the protein molecules present in the asymmetric unit, platinum(II) binding takes place exclusively at the level of Met29. In one of the two molecules, the Gln28 side chain completes the platinum coordination sphere, anchoring the cisplatin fragment to the protein in a bidentate fashion. These results contain interesting implications for understanding the biological chemistry of this important drug.

Cisplatin binding to proteins: molecular structure of the ribonuclease a adduct.,Messori L, Merlino A Inorg Chem. 2014 Apr 21;53(8):3929-31. doi: 10.1021/ic500360f. Epub 2014 Apr 3. PMID:24694179[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. delCardayre SB, Ribo M, Yokel EM, Quirk DJ, Rutter WJ, Raines RT. Engineering ribonuclease A: production, purification and characterization of wild-type enzyme and mutants at Gln11. Protein Eng. 1995 Mar;8(3):261-73. PMID:7479688
  2. Messori L, Merlino A. Cisplatin binding to proteins: molecular structure of the ribonuclease a adduct. Inorg Chem. 2014 Apr 21;53(8):3929-31. doi: 10.1021/ic500360f. Epub 2014 Apr 3. PMID:24694179 doi:http://dx.doi.org/10.1021/ic500360f

4ot4, resolution 1.85Å

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