Mutation of a conserved Asp residue in Walker motif B with an Ala residue; this mutation has been shown to destroy the ability to coordinate Mg[2+] for ATP hydrolysis in mini-chromosome maintenance proteins and other AAA+ ATPases.
A15831008C
D537A | rec-PA; D537A | rec-PB
K?S
Mutation of a conserved Asp residue in Walker motif B to an Ala residue. Site of nucleotide substitution in mutant inferred by FlyBase curator based on reported amino acid change.