bis-L-aspartato tris-L-glutamato L-histidino calcium tetramanganese tetroxide 1071.8880615234375 1072.43994140625 317.647491455078125 317.779998779296875 4Mn-Ca-4O cluster A protein modification that effectively converts two L-aspartic acid residues, three L-glutamic acid residues, an L-histidine residue, and a one-calcium, four-iron, four-oxygen cluster to bis-L-aspartato tris-L-glutamato L-histidino calcium tetramanganese tetroxide. C 0 Ca 1 H -6 Mn 4 N 0 O 4 C 29 Ca 1 H 32 Mn 4 N 8 O 20 Cross-link 6. D, D, E, E, E, H MOD:00371 PSI-MOD bis-L-aspartato tris-L-glutamato L-histidino calcium tetramanganese tetroxide hypothetical mu3-1:2:3kappaO-oxido-mu3-1:3:4kappaO-oxido-mu3-2:3:4kappaO-oxido-mu4-1:2:4:5kappaO-oxido-N1'-histidino-O5-glutamato 2-manganese-O5,O5-glutamato 3-manganese-O4-aspartato 4-manganese-O4-aspartato-O5-glutamato 5-manganese photosystem II catalytic cluster manganese containing modified residue calcium containing modified residue metal or metal cluster coordinated L-aspartic acid residue metal or metal cluster coordinated L-glutamic acid residue metal or metal cluster coordinated L-histidine residue