alpha-D-mannose 1-phosphate + GTP + H(+) => GDP-alpha-D-mannose + diphosphate
alpha-d-mannose 1-phosphate + gtp + h(+) => gdp-alpha-d-mannose + diphosphate
alpha-D-mannose 1-phosphate + GTP + H(+) => GDP-alpha-D-mannose + diphosphate
alpha-d-mannose 1-phosphate + gtp + h(+) => gdp-alpha-d-mannose + diphosphate