APL4 (large subunit of AGP 4); glucose-1-phosphate adenylyltransferase. Identical to Probable glucose-1-phosphate adenylyltransferase large subunit, chloroplast precursor [Arabidopsis Thaliana] (GB:Q9SIK1); similar to APL2 (large subunit of AGP 2) [Arabidopsis thaliana] (TAIR:AT1G27680.1); similar to APL3 (large subunit of AGP 3) [Arabidopsis thaliana] (TAIR:AT4G39210.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO47595.1); similar to ADPglucose pyrophosphorylase large subunit [Solanum habrochaites] (GB:ABC26923.1); similar to ADP-glucose pyrophosphorylase large subunit [Lycopersicon hirsutum] (GB:AAD56405.1); contains InterP