Structure of PDB 4xk8 Chain 3

Receptor sequence

>4xk83 (length=218) Species: 3888 (Pisum sativum)

RPLWFASKQSLSYLDGSLPGDYGFDPLGLSDPEGTGGFIEPRWLAYGEVI
NGRFAMLGAVGAIAPEYLGKVGLIPQETALAWFQTGVIPPAGTYNYWADN
YTLFVLEMALMGFAEHRRFQDWAKPGSMGKQYFLGLEKGFGGSGNPAYPG
GPFFNPLGFGKDEKSLKELKLKEVKNGRLAMLAILGYFIQGLVTGVGPYQ
NLLDHVADPVNNNVLTSL

3D structure

• PDB: 4xk8 Structural basis for energy transfer pathways in the plant PSI-LHCI supercomplex
• Chain: 3
• Resolution: 2.8 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	CLA	3	G84 F86 I87	G36 F38 I39
BS02	CLA	3	L75 L77	L27 L29
BS03	CLA	3	L240 V241	L192 V193
BS04	CHL	3	A157 F161 H164 R165	A109 F113 H116 R117
BS05	CLA	3	G68 D69 Y70 F72 D73 L77 S78 L92 A93 E96 N99 R226 M229	G20 D21 Y22 F24 D25 L29 S30 L44 A45 E48 N51 R178 M181
BS06	CLA	3	F86 W91 L92 N99	F38 W43 L44 N51
BS07	CLA	3	L105 V108 G109 P113 T126	L57 V60 G61 P65 T78
BS08	CLA	3	V135 Y144 W145 L151 L154 E155 M159	V87 Y96 W97 L103 L106 E107 M111
BS09	CLA	3	V135 I136 P137 Y149 F152 E155 F236	V87 I88 P89 Y101 F104 E107 F188
BS10	CHL	3	R101 F102 A162 R165 R166 D169 F181 F188 P197 F202	R53 F54 A114 R117 R118 D121 F133 F140 P149 F154
BS11	CLA	3	W91 Y94 G95 I98 N99 F102 M156 M159 G160 E163 H164 R166 F167	W43 Y46 G47 I50 N51 F54 M108 M111 G112 E115 H116 R118 F119
BS12	CLA	3	R101 M104 Y196 P197 G198 F202 F207 L217 K220 E221 N224	R53 M56 Y148 P149 G150 F154 F159 L169 K172 E173 N176
BS13	CLA	3	V108 K220 N224 L227	V60 K172 N176 L179
BS14	CLA	3	L230 G234 I237 Q238 N249 H253 V262	L182 G186 I189 Q190 N201 H205 V214
BS15	CLA	3	H253 P257 N261	H205 P209 N213
BS16	CLA	3	H164 F167	H116 F119

Gene Ontology

Biological Process

• GO:0009765 photosynthesis, light harvesting

Cellular Component

• GO:0016020 membrane

External links

• PDB: RCSB:4xk8, PDBe:4xk8, PDBj:4xk8
• PDBsum: 4xk8
• PubMed: 26023133
• UniProt: Q32904|CB23_PEA Chlorophyll a-b binding protein 3, chloroplastic (Gene Name=lhca3)