Structure of PDB 8iwx Chain G

Receptor sequence

>8iwxG (length=218) Species: 3562 (Spinacia oleracea)

SPWYGPDRVKYLGPFSGESPSYLTGEFPGDYGWDTAGLSADPETFAKNRE
LEVIHCRWAMLGALGCVFPELLARNGVKFGEAVWFKAGSQIFSEGGLDYL
GNPSLVHAQSILAIWACQVILMGAVEGYRIAGGPLGEVVDPLYPGGSFDP
LGLADDPEAFAELKVKEIKNGRLAMFSMFGFFVQAIVTGKGPLENLADHL
ADPVNNNAWNFATNFVPG

3D structure

• PDB: 8iwx Cryo-EM structures of LHCII in photo-active and photo-protecting states reveal allosteric regulation of light harvesting and excess energy dissipation.
• Chain: G
• Resolution: 2.59 Å

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	CHL	G	Y24 L25 G26 Y44	Y11 L12 G13 Y31
BS02	CLA	G	G42 D43 Y44 W46 D47 L51 S52 N61 R62 E65 H68 R185 M188 F189 F192	G29 D30 Y31 W33 D34 L38 S39 N48 R49 E52 H55 R172 M175 F176 F179
BS03	CLA	G	G78 F81 F92 L110 Y112 L113 L118 V119	G65 F68 F79 L97 Y99 L100 L105 V106
BS04	CHL	G	L118 V119 H120 S123	L105 V106 H107 S110
BS05	CHL	G	L110 I127 Q131 L134	L97 I114 Q118 L121
BS06	CHL	G	W97 F98 K99 G101 S102 Q131 F195	W84 F85 K86 G88 S89 Q118 F182
BS07	CHL	G	R70 V138 Y141 R142 G146 P147 L148 G149 P157 F161	R57 V125 Y128 R129 G133 P134 L135 G136 P144 F148
BS08	CHL	G	L64 I67 H68 W71 G136 E139 R142 F192	L51 I54 H55 W58 G123 E126 R129 F179
BS09	CLA	G	R70 M73 Y156 F161 D162 L166 F173 L176 E180	R57 M60 Y143 F148 D149 L153 F160 L163 E167
BS10	CLA	G	W16 K179 K182 N183	W3 K166 K169 N170
BS11	CLA	G	K179 N183 L186	K166 N170 L173
BS12	CLA	G	G193 V196 Q197 V200 N208 H212 N220 A221	G180 V183 Q184 V187 N195 H199 N207 A208
BS13	CLA	G	H212 P216 N220	H199 P203 N207
BS14	CHL	G	F228 P230	F215 P217

Gene Ontology

Biological Process

• GO:0009765 photosynthesis, light harvesting

Cellular Component

• GO:0016020 membrane

External links

• PDB: RCSB:8iwx, PDBe:8iwx, PDBj:8iwx
• PDBsum: 8iwx
• PubMed: 37653340
• UniProt: P12333|CB2A_SPIOL Chlorophyll a-b binding protein, chloroplastic