Structure of PDB 4lcz Chain B

Receptor sequence

>4lczB (length=208) Species: 3562 (Spinacia oleracea)

SPWYGPDRVKYLGPFSGESPSYLTGEFPGDYGWDTAGLSADPETFAKNRE
LEVIHCRWAMLGALGCVFPELLARNGVKFGEAVWFKAGSQIFSEGGLDYL
GNPSLVHAQSILAIWACQVILMGAVEGYRIAGGPLGEVVDPLYPGGSFDP
LGLADDPEAFAELKVKEIKNGRLAMFSMFGFFVQAIVTGKGPLENLADHL
ADPVNNNA

3D structure

• PDB: 4lcz Crystal structure of a multilayer packed major light-harvesting complex: implications for grana stacking in higher plants.
• Chain: B
• Resolution: 2.6 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	B	V22 Y24 L25 G26 Y44 W46	V9 Y11 L12 G13 Y31 W33
BS02	CLA	B	L36 G42 D43 Y44 W46 D47 S52 N61 R62 E65 H68 R185 M188 F189	L23 G29 D30 Y31 W33 D34 S39 N48 R49 E52 H55 R172 M175 F176
BS03	CLA	B	L64 H68 F195	L51 H55 F182
BS04	CLA	B	L74 G78 F92 Y112 L113 L118	L61 G65 F79 Y99 L100 L105
BS05	CHL	B	S117 L118 V119 H120 A121 Q122 S123	S104 L105 V106 H107 A108 Q109 S110
BS06	CHL	B	W71 G101 I127 C130 Q131 L134	W58 G88 I114 C117 Q118 L121
BS07	CHL	B	F98 K99 G101 S102 F105 Q131	F85 K86 G88 S89 F92 Q118
BS08	CHL	B	R70 W71 V138 Y141 R142 G146 P147 L148 F161 P163	R57 W58 V125 Y128 R129 G133 P134 L135 F148 P150
BS09	CHL	B	L64 I67 H68 W71 Q131 M135 G136 E139 R142 I143 F192	L51 I54 H55 W58 Q118 M122 G123 E126 R129 I130 F179
BS10	CLA	B	R70 M73 L74 Y156 P157 G158 F161 L166 F173 L176 E180	R57 M60 L61 Y143 P144 G145 F148 L153 F160 L163 E167
BS11	CLA	B	W16 K179 K182 L186	W3 K166 K169 L173
BS12	CLA	B	K179 N183 L186	K166 N170 L173
BS13	CLA	B	F189 S190 G193 Q197 N208 H212 N220 A221	F176 S177 G180 Q184 N195 H199 N207 A208
BS14	CLA	B	H212 N220	H199 N207
BS15	CHL	B	W46 T48	W33 T35

Gene Ontology

Biological Process

• GO:0009765 photosynthesis, light harvesting

Cellular Component

• GO:0016020 membrane

External links

• PDB: RCSB:4lcz, PDBe:4lcz, PDBj:4lcz
• PDBsum: 4lcz
• PubMed: 24482437
• UniProt: P12333|CB2A_SPIOL Chlorophyll a-b binding protein, chloroplastic