X-ray evidence for metal–N-7 bonding in a hydrated manganese derivative of guanosine 5′-monophosphate
- 1 June 1974
- journal article
- Published by Portland Press Ltd. in Biochemical Journal
- Vol. 139 (3) , 791-792
- https://doi.org/10.1042/bj1390791
Abstract
Single-crystal X-ray studies of a manganese(II) derivative of guanosine 5'-monophosphate, [Mn(5'-GMP)(H(2)O)(5)],3H(2)O, have shown that it is isostructural with its nickel analogue. The manganese atom therefore is bonded to five water molecules with the remaining octahedral co-ordination site being occupied by N-7 of the nucleotide base. No direct metal-phosphate bonding is involved, but there are structure-stabilizing intramolecular hydrogen bonds between two phosphate oxygen atoms and co-ordinated water molecules.Keywords
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