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Table 1 Proteins of carbohydrate metabolism that were detected and proposed to be wheat amyloplast constituents1

From: Metabolic pathways of the wheat (Triticum aestivum) endosperm amyloplast revealed by proteomics

Carbohydrate metabolism Plastid Criteria1
   Glucose metabolism  
1 Glucose-6-phosphate isomerase EC 1, 2(ch), 3(ch), 4
2 Hexokinase EC 2 (ch/cy), 3 (ch/mi), 4
3 Fructose-bisphosphate aldolase EC 1, 2(ch/cy), 3(ch), 4
4 Glyceraldehyde-3-phosphate dehydrogenase EC 2(ch/cy), 3(ch), 4
5 Phosphoenolpyruvate mutase-like EC 2(ch), 3(ch)
6 Phosphoglycerate dehydrogenase EC 1, 2(ch), 3(ch), 4
7 Phosphoglycerate kinase EC 1, 2(ch/cy), 3(ch), 4
8 Phosphopyruvate hydratase EC 2(ch/cy/mi), 3(mi/ch), 4
9 Pyruvate kinase, putative EC 2(ch/cy), 3(ch), 4
10 Triosephosphate isomerase EC 2(ch/cy/pl), 3(ch), 4
   Pyruvate dehydrogenase complex  
11 Dihydrolipoyllysine-residue acetyltransferase EC 2(ch/pl), 3(ch), 4
12 Lipoamide dehydrogenase EC 2(ch/mi/pl), 3(ch), 4
13 Pyruvate dehydrogenase E1 alpha subunit EC 2(ch/mi/pl), 3(ch), 4
14 Pyruvate dehydrogenase E1 beta subunit EC 2(ch/mi/pl), 3(ot), 4
   Citrate and malate  
15 Aconitate hydratase, putative EC 2(ch, cy, mi), 3(ch)
16 Malic enzyme (NADP-dependent) EC 2(ch, cy, mi), 3(ch), 4
   Starch metabolism  
17 4-alpha-glucanotransferase EC 1, 2(am, ch, cy, pl), 3(ot), 4
18 Alpha 1,4-glucan phosphorylase EC 1, 2(am, ch, cy), 4
19 Glucose-1-phosphate adenylyltransferase large subunit (ADP-G) EC 1, 2(am, ch, cy), 3(ch), 4
20 Glucose-1-phosphate adenylyltransferase small subunit EC "
21 Glucose-1-phosphate adenylyltransferase, small subunit EC "
22 NDP-glucose-starch glucosyltransferase (granule bound starch synthase) EC 1, 2(am), 3(ch), 4
23 1,4-alpha-glucan branching enzyme (starch branching enzyme 2) EC 1, 2(am, pl), 4
24 Starch synthase II EC 1, 2(am), 3(ch), 4
   Pentose phosphate cycle  
25 Glucose-6-phosphate dehydrogenase EC 2(ch, cy), 3(ch), 4
26 Phosphoribulokinase EC 2(ch), 3(ch), 4
27 Ribose-5-phosphate isomerase EC 2(ch), 3(ch), 4
28 Ribulose 1,5-bisphosphate carboxylase, large subunit EC 1, 2(ch), 3(ot),4
29 Transaldolase, putative EC 2(mi, pl), 3(ch), 4
30 Transketolase EC 2(ch, cy), 3(ch), 4
   1-Carbon metabolism  
31 Formate-tetrahydrofolate ligase EC 2(ch, cy, mi, pl), 3(ch), 4
32 Glycine hydroxymethyltransferase EC 2(ch, cy, mi, pl), 3(ch), 4
  1. 1Criteria: 1) Known amyloplast or chloroplast protein in wheat; 2) annotated as amyloplast, plastid or chloroplast protein for other plant species in the BRENDA [100] or NCBI [34] databases, or identified as such in a reference in this paper; 3) Target P [41] predicts a plastid transit peptide for the protein product of the wheat gene or homolog; 4) other members of the same pathway or protein complex are known plastid proteins. The following abbreviations are used: am, amyloplast; ch, chloroplast; cy, cytoplasm; en, endomembrane; gl, glyoxysome; mi, mitochondria; nu, nucleus; ot, other; pe, peroxisome; pl, plastid;