Structure of PDB 8iwz Chain G

Receptor sequence

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

SPWYGPDRVKYLGPFSGESPSYLTGEFPGDYGWDTAGLSADPETFAKNRE
LEVIHCRWAMLGALGCVFPELLARNGVKFGEAVWFKAGSQIFSEGGLDYL
GNPSLVHAQSILAIWACQVILMGAVEGYRIAGGPLGEVVDPLYPGGSFDP
LGLADDPEAFAELKVKEIKNGRLAMFSMFGFFVQAIVTGKGPLENLADHL
ADPVNNNAWNFATNFVPG

3D structure

• PDB: 8iwz 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: 2.52 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 Y44 W46	Y11 L12 Y31 W33
BS02	CLA	G	L36 G42 Y44 W46 D47 L51 S52 F58 N61 E65 R185 F192	L23 G29 Y31 W33 D34 L38 S39 F45 N48 E52 R172 F179
BS03	CLA	G	W71 G78 F92 L110 Y112 L113	W58 G65 F79 L97 Y99 L100
BS04	CHL	G	L118 V119 H120	L105 V106 H107
BS05	CHL	G	I127 Q131 L134	I114 Q118 L121
BS06	CHL	G	F98 S102 F105 I199	F85 S89 F92 I186
BS07	CHL	G	I67 R70 W71 V138 Y141 R142 G146 P147 L148 P157 F161	I54 R57 W58 V125 Y128 R129 G133 P134 L135 P144 F148
BS08	CHL	G	E63 I67 H68 M135 E139	E50 I54 H55 M122 E126
BS09	CLA	G	R70 M73 Y156 F161 D162 L166 F173 E180	R57 M60 Y143 F148 D149 L153 F160 E167
BS10	CLA	G	W16 K179 K182 N183 L186	W3 K166 K169 N170 L173
BS11	CLA	G	L77 K179 N183 L186	L64 K166 N170 L173
BS12	CLA	G	F189 F192 G193 V196 Q197 V200 T201 N208 H212 A221	F176 F179 G180 V183 Q184 V187 T188 N195 H199 A208
BS13	CLA	G	L209 H212 P216 W222	L196 H199 P203 W209
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:8iwz, PDBe:8iwz, PDBj:8iwz
• PDBsum: 8iwz
• PubMed: 37653340
• UniProt: P12333|CB2A_SPIOL Chlorophyll a-b binding protein, chloroplastic