Structure of PDB 4xk8 Chain 9

Receptor sequence

>4xk89 (length=196) Species: 3888 (Pisum sativum)

GEWLPGLASPGYLTGSLPGDNGFDPLGLAEDPENLRWFVQAELVNGRWAM
LGVAGMLLPEVFTSIGIINVPKWYAAGKEEYFASSSTLFVIEFILFHYVE
IRRWQDIKNPGSVNQDPIFKQYSLPAGEVGYPGGIFNPLNFAPTLEAKEK
EIANGRLAMLAFLGFIIQHNVTGKGPFDNLLQHISDPWHNTIVQTL

3D structure

• PDB: 4xk8 Structural basis for energy transfer pathways in the plant PSI-LHCI supercomplex
• Chain: 9
• 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	CHL	9	Y151 R155	Y98 R102
BS02	CLA	9	E55 W56 L57 P58	E2 W3 L4 P5
BS03	CLA	9	L66 G72 D73 N74 F76 L81 F91 V92 A94 E95 R209 M212	L13 G19 D20 N21 F23 L28 F38 V39 A41 E42 R156 M159
BS04	CLA	9	A94 N98 F215	A41 N45 F162
BS05	CLA	9	L104 G108 L111 V123 P124 Y134	L51 G55 L58 V70 P71 Y81
BS06	CHL	9	Y134 L141 I144 E145 F149 F189	Y81 L88 I91 E92 F96 F136
BS07	CHL	9	Y127 G130 S138 E145	Y74 G77 S85 E92
BS08	CHL	9	R100 W101 V152 R155 R156 D159 G183 F189	R47 W48 V99 R102 R103 D106 G130 F136
BS09	CLA	9	W90 A94 V97 N98 W101 F146 F149 H150 E153 R156 W157	W37 A41 V44 N45 W48 F93 F96 H97 E100 R103 W104
BS10	CLA	9	R100 M103 L104 Y184 P185 G186 F189 F194 A200 K201 E204	R47 M50 L51 Y131 P132 G133 F136 F141 A147 K148 E151
BS11	CLA	9	E202 K203 A206 N207	E149 K150 A153 N154
BS12	CLA	9	K203 N207	K150 N154
BS13	CLA	9	L213 A214 G217 I220 Q221 N232 T244 I245 T248	L160 A161 G164 I167 Q168 N179 T191 I192 T195
BS14	CLA	9	H236 P240 W241 T244	H183 P187 W188 T191
BS15	CLA	9	F146 H150 W157	F93 H97 W104
BS16	CHL	9	Y151 R155 D169 P170 I171 Y175	Y98 R102 D116 P117 I118 Y122

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: Q9SQL2|CB24_PEA Chlorophyll a-b binding protein P4, chloroplastic (Gene Name=lhcA-P4)