MKALILVGGFGTRLRPLTLSFPKPLVDFANKPMILHQIEALKAVGVDEVVLAINYQPEVMLNFLKDFETKLEIKITCSQETEPLGTAGPLALARDKLLDGSGEPFFVLNSDVISEYPLKEMLEFHKSHGGEASIMVTKVDEPSKYGVVVMEESTGRVEKFVEKPKLYVGNKINAGIYLLNPSVLDKIELRPTSIEKETFPKIAAAQGLYAMVLPGFWMDIGQPRDYITGLRLYLDSLRKKSPAKLTSGPHIVGNVLVDETATIGEGCLIGPDVAIGPGCIVESGVRLSRCTVMRGVRIKKHACISSSIIGWHSTVGQWARIENMTILGEDVHVSDEIYSNGGVVLPHKEIKSNILKPEIVM GMPP1_ARATH GMP1 SOZ1 Protein CYTOKINESIS DEFECTIVE 1 VTC1 Mannose-1-phosphate guanylyltransferase 1 361 HSN1 EMB101 T5I7.7 Protein EMBRYO DEFECTIVE 101 GDP-mannose pyrophosphorylase 1 Protein HYPERSENSITIVE TO AMMONIUM ION 1 CYT1 Protein SENSITIVE TO OZONE 1 At2g39770 Catalyzes a reaction of the Smirnoff-Wheeler pathway, the major route to ascorbate biosynthesis in plants. Plays an essential role in plant growth and development and cell-wall architecture. Provides GDP-mannose, used for cell wall carbohydrate biosynthesis, protein N-glycosylation, as well as for the biosynthesis of the antioxidant ascorbate. Protein VITAMIN C DEFECTIVE 1