Title : Determination by Raman spectroscopy of the pKa of N5 of dihydrofolate bound to dihydrofolate reductase: mechanistic implications.

Pub. Date : 1994 Jun 14

PMID : 8003467






4 Functional Relationships(s)
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1 Determination by Raman spectroscopy of the pKa of N5 of dihydrofolate bound to dihydrofolate reductase: mechanistic implications. dihydrofolate Dihydrofolate reductase Escherichia coli
2 Dihydrofolate reductase (DHFR) catalyzes the reduction of dihydrofolate (H2folate) to tetrahydrofolate by NADPH, and this requires that the pteridine ring be protonated at N5. dihydrofolate Dihydrofolate reductase Escherichia coli
3 Dihydrofolate reductase (DHFR) catalyzes the reduction of dihydrofolate (H2folate) to tetrahydrofolate by NADPH, and this requires that the pteridine ring be protonated at N5. dihydrofolate Dihydrofolate reductase Escherichia coli
4 We have determined the pKa of N5 of dihydrofolate in the Escherichia coli DHFR/NADP+/H2folate ternary complex by Raman difference spectroscopy and found that the value is 6.5. dihydrofolate Dihydrofolate reductase Escherichia coli