ArticleActa crystallographica. Section F, Structural biology and crystallization communications2009
The Z isomer of 2,4-diaminofuro[2,3-d]pyrimidine antifolate promotes unusual crystal packing in a human dihydrofolate reductase ternary complex.
Article in Acta crystallographica. Section F, Structural biology and crystallization communications, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 3 citations in OpenAlex.
- Molecular Characteristics and Serodiagnostic Potential of Dihydrofolate Reductase from Echinococcus granulosus.Scientific reports · 2017Article
- Malarial dihydrofolate reductase as a paradigm for drug development against a resistance-compromised target.Proceedings of the National Academy of Sciences of the United States of America · 2012Article
- Preferential selection of isomer binding from chiral mixtures: alternate binding modes observed for the E and Z isomers of a series of 5-substituted 2,4-diaminofuro[2,3-d]pyrimidines as ternary complexes with NADPH and human dihydrofolate reductase.Acta crystallographica. Section D, Biological crystallography · 2010Article
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4 authors at 3 institutions in 1 country.
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Abstract
The crystal structure of the ternary complex of human dihydrofolate reductase (hDHFR) with NADPH and the Z isomer of 2,4-diamino-5-[2-(2'-methoxyphenyl)propenyl]-furo[2,3-d]pyrimidine (Z1) shows that the Z isomer binds in the normal antifolate orientation in which the furo oxygen occupies the 8-amino position observed in the binding of 2,4-diaminopteridine antifolates such as methotrexate and with the methoxyphenyl moiety cis to and coplanar with the furo[2,3-d]pyrimidine ring. The hDHFR ternary complex crystallized in the orthorhombic space group P2(1)2(1)2(1) and its structure was refined to 1.7 A resolution. Although other hDHFR complexes crystallize in this space group, these data provide only the second example of an unusual packing arrangement in which the conserved active-site Arg70 forms a salt bridge to the side chain of Glu44 from a symmetry-related molecule. As a result, the conformations of Phe31 and Gln35 shift with respect to those observed in the structure of mouse DHFR bound to Z1, which crystallizes in the monoclinic space group P2(1) and shows that Gln35 interacts with Arg70.
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