Structure of PDB 7bgi Chain 2

Receptor sequence

>7bgi2 (length=198) Species: 3055 (Chlamydomonas reinhardtii)

RPMWYPGATAPAHLDGSMLGDYGFDPLRLGVNKDNLKWFREAELTNGRWA
MAAVVGILFTDAVGLPKFWTAGAEKYALDNQTLALIEVAVFAVLEGKRYE
IYKKTGETGFLSFAPFDPMGMKSEEMKLKELKNGRLAMLAFLGFCSQAAV
YGKGPIETLQLHLADPGHNNIYTSSVGPETAVTVAVLCVLPMIIEATK

3D structure

• PDB: 7bgi Dimeric and high-resolution structures of Chlamydomonas Photosystem I from a temperature-sensitive Photosystem II mutant
• Chain: 2
• Resolution: 2.54 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	2	R75 M78 T135 F143 D144 M148 K149 M153 K154 E157	R48 M51 T108 F116 D117 M121 K122 M126 K127 E130
BS02	CLA	2	M153 K156 N160	M126 K129 N133
BS03	CLA	2	G170 S173 Q174 Y178 T185 H189 N197 I198	G143 S146 Q147 Y151 T158 H162 N170 I171
BS04	CLA	2	G47 D48 Y49 F51 D52 L56 G57 F66 R67 E70 R162 M165	G20 D21 Y22 F24 D25 L29 G30 F39 R40 E43 R135 M138
BS05	CLA	2	W65 F66	W38 F39
BS06	CLA	2	A79 A80 G83 F86 L92 Y103	A52 A53 G56 F59 L65 Y76
BS07	CLA	2	L155 K159	L128 K132
BS08	CLA	2	H189 L190 P193 Y199	H162 L163 P166 Y172
BS09	CHL	2	W31 P33 Y49 L214 C215 P218	W4 P6 Y22 L187 C188 P191
BS10	CHL	2	W96 T97 G99 A100 E114	W69 T70 G72 A73 E87
BS11	CLA	2	W65 E68 A69 T72 N73 W76 F118 E122 R125	W38 E41 A42 T45 N46 W49 F91 E95 R98
BS12	CHL	2	W76 Y103 L105 L110 E114 F118	W49 Y76 L78 L83 E87 F91
BS13	CLA	2	S173 A176 V177 V203 E206 T210	S146 A149 V150 V176 E179 T183

Gene Ontology

Biological Process

• GO:0009765 photosynthesis, light harvesting

Cellular Component

• GO:0016020 membrane

External links

• PDB: RCSB:7bgi, PDBe:7bgi, PDBj:7bgi
• PDBsum: 7bgi
• UniProt: A8IKC8