9jwd
From Proteopedia
Crystal structure of RNAs A treated with sodium cyanide
Structural highlights
FunctionRNAS1_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 PubMedRibonuclease A is a major hydrolyzing enzyme involved in the hydrolysis of RNA. The crystals of bovine pancreatic RNase A (bpRNase A) were grown at pH 5.5. The effect of sodium cyanide on bpRNase A was assessed by adding it directly to the crystal containing well. Treating the crystals of bpRNase A with sodium cyanide resulted in the displacement of the sulfate ion from the active site of bpRNase A, while the additional sulfate ion, bound to Ala-4, remained unaffected. The addition of sodium cyanide to bpRNase A crystals did not show change in the secondary structure elements of the enzyme. This study was conducted to check the effect of cyanide on bpRNase A crystals and to displace sulfate ion from its active site. Cyanide mediated conformational changes resulted in the displacement of sulfate ion from the active site of bovine pancreatic ribonuclease A.,Shah N, Akbar Z, Ahmad MS Biochem Biophys Res Commun. 2024 Dec 3;736:150868. doi: , 10.1016/j.bbrc.2024.150868. Epub 2024 Oct 23. PMID:39490154[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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