Structure of PDB 7sa3 Chain B

Receptor sequence

>7sa3B (length=450) Species: 91464 (Synechococcus sp. PCC 7335) [Search protein sequence]

RVHTSVLNDPGRLIAVHIMHNALCAGFAGSMLLFELALFDPSDPVLNPMW
RQGCFLMPFVSRLGVVNSWQGWSVTGETFTNPGFWTFETVAIAHIIFSGL
SFLAACWHWVYWDVDLPKVFGIHLTLAGILCFGFGAFHLTGLFGPGMWVS
DPLGLTGHIQGVAPEWGAAGFDPHNPGGVVAHHIALGIVAIIGGLFHIFV
RGNIEGTLASGLAVFFSGAFIAAGTMWYGTATTPIELWGPTRYQWDQGFF
QQAISRQVKASISDGKSPSEAWSEIPTKLAFYDYIGNSPAKGGLFRVGRM
VDGDGLPTGWLGHPVFKDGEGRELTVRRMPNFFENFPVVLFDQDGIVRAD
IPFRQAESKYGIEQTGVTVSFYGGELDGQTFSDPKDVKKYARRAQLGEPF
EFDRSVYDSDGLFRTSNRGFFAFFHVIFGLLWFFGHIWHGLRALFQDVFS

3D structure

PDB

7sa3 Structure of a monomeric photosystem II core complex from a cyanobacterium acclimated to far-red light reveals the functions of chlorophylls d and f.

Chain

Resolution

2.25 Å

3D
structure

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Enzymatic activity

Enzyme Commision number

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)
BS01	CLA	B	W185 G189 F190 G197 H201 L205 I251	W166 G170 F171 G178 H182 L186 I221
BS02	CLA	B	R68 L69 C150 F153 L158 H201 H202 L205 T262	R62 L63 C131 F134 L139 H182 H183 L186 T232
BS03	F6C	B	F33 F61 F65 R68 F245 G248 A249 A252 F451 H455 F458 W462	F27 F55 F59 R62 F215 G218 A219 A222 F421 H425 F428 W432
BS04	CLA	B	N27 C30 A34 L62 V66 H100 F103	N21 C24 A28 L56 V60 H94 F97
BS05	CLA	B	V71 W91 A99 H100 G152 F153 H157 F162 P164	V65 W85 A93 H94 G133 F134 H138 F143 P145
BS06	F6C	B	F33 M37 F40 G59 F61 V327 G328 F450 F451 F453 F454	F27 M31 F34 G53 F55 V297 G298 F420 F421 F423 F424
BS07	CLA	B	S240 A243 F246 S247 F463 H466 I467	S210 A213 F216 S217 F433 H436 I437
BS08	CLA	B	F139 L143 V208 G212 F215 H216	F120 L124 V189 G193 F196 H197
BS09	CLA	B	L135 F139 H142 T237 V244 F245	L116 F120 H123 T207 V214 F215
BS10	CLA	B	R7 V8 H9 L238 L461 W462 G465 W468 H469 R472	R1 V2 H3 L208 L431 W432 G435 W438 H439 R442
BS11	CLA	B	H9 L13 L19 V22 H23 H26 N27 I234 T237 L238 L242 F245	H3 L7 L13 V16 H17 H20 N21 I204 T207 L208 L212 F215
BS12	F6C	B	H26 C30 F33 F245 W462	H20 C24 F27 F215 W432
BS13	CLA	B	I20 H23 I24 N27 F103 V138 I141 H142	I14 H17 I18 N21 F97 V119 I122 H123
BS14	CLA	B	I20 I24 A110 W113 H114	I14 I18 A104 W107 H108

Gene Ontology

	Molecular Function
GO:0016168	chlorophyll binding
GO:0045156	electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity

	Biological Process
GO:0009767	photosynthetic electron transport chain
GO:0009772	photosynthetic electron transport in photosystem II
GO:0015979	photosynthesis
GO:0019684	photosynthesis, light reaction

	Cellular Component
GO:0009521	photosystem
GO:0009523	photosystem II
GO:0009579	thylakoid
GO:0016020	membrane
GO:0031676	plasma membrane-derived thylakoid membrane
GO:0042651	thylakoid membrane

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Molecular Function

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Biological Process

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Cellular Component

External links

PDB	RCSB:7sa3, PDBe:7sa3, PDBj:7sa3
PDBsum	7sa3
PubMed	34801554
UniProt	B4WKI1

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