D-mannonate + NADP(+) => D-mannuronate + NADPH + H(+)
d-mannonate + nadp(+) => d-mannuronate + nadph + h(+)
D-mannonate + NADP(+) => D-mannuronate + NADPH + H(+)
d-mannonate + nadp(+) => d-mannuronate + nadph + h(+)