2.6.1.102 GDP-4-dehydro-3,6-dideoxy-alpha-D-mannose + L-glutamate - Caulobacter vibrioides GDP-4-amino-3,4,6-trideoxy-alpha-D-mannose + 2-oxoglutarate - 423540 2.6.1.102 GDP-4-dehydro-3,6-dideoxy-alpha-D-mannose + L-glutamate the unnatural substrate is accommodated in the active site nearly as well as the natural substrate, but the absence of the 3'-OH group affects the alignment of the sugar moiety and, thus, is not properly positioned for efficient catalysis Caulobacter vibrioides GDP-4-amino-3,4,6-trideoxy-alpha-D-mannose + 2-oxoglutarate - 423540 2.6.1.102 GDP-4-dehydro-6-deoxy-alpha-D-mannose + L-glutamate - Caulobacter vibrioides GDP-4-amino-4,6-dideoxy-alpha-D-mannose + 2-oxoglutarate - 421973 2.6.1.102 GDP-4-dehydro-6-deoxy-alpha-D-mannose + L-glutamate - Vibrio cholerae serotype O1 GDP-4-amino-4,6-dideoxy-alpha-D-mannose + 2-oxoglutarate - 421973 2.6.1.102 GDP-4-dehydro-6-deoxy-alpha-D-mannose + L-glutamate catalyzes the final step in GDP-perosamine synthesis. L-Perosamine is a component of the O-specific polysaccharide of the lipopolysaccharide component of the outer membrane of Gram-negative bacteria Caulobacter vibrioides GDP-4-amino-4,6-dideoxy-alpha-D-mannose + 2-oxoglutarate - 421973 2.6.1.102 GDP-4-dehydro-6-deoxy-alpha-D-mannose + L-glutamate GDP-perosamine synthase can use only L-glutamate as its amino donor Caulobacter vibrioides GDP-4-amino-4,6-dideoxy-alpha-D-mannose + 2-oxoglutarate - 421973 2.6.1.102 GDP-4-dehydro-6-deoxy-alpha-D-mannose + L-glutamate - Caulobacter vibrioides CB15 GDP-4-amino-4,6-dideoxy-alpha-D-mannose + 2-oxoglutarate - 421973 2.6.1.102 GDP-4-dehydro-6-deoxy-D-mannose + L-glutamate - Escherichia coli GDP-alpha-D-perosamine + 2-oxoglutarate - 421974 2.6.1.102 GDP-4-dehydro-6-deoxy-D-mannose + L-glutamate - Escherichia coli GDP-D-perosamine + 2-oxoglutarate - 421975