Structure of PDB 4ixq Chain C

Receptor sequence

>4ixqC (length=447) Species: 197221 (Thermosynechococcus vestitus BP-1) [Search protein sequence]

DQESSGFAWWAGNARLINLSGKLLGAHVAHAGLIVFWAGAMTLFELAHFI
PEKPMYEQGLILIPHIATLGWGVGPGGEVVDTFPFFVVGVVHLISSAVLG
FGGVYHAIRGPETLEEYSSFFGYDWKDKNKMTTILGFHLIVLGIGALLLV
AKAMFFGGLYDTWAPGGGDVRVITNPTLDPRVIFGYLLKSPFGGEGWIVS
VNNLEDVVGGHIWIGLICIAGGIWHILTTPFGWARRAFIWSGEAYLSYSL
GALSMMGFIATCFVWFNNTVYPSEFYGPTGPEASQAQAMTFLIRDQKLGA
NVGSAQGPTGLGKYLMRSPTGEIIFGGETMRFWDFRGPWLEPLRGPNGLD
LNKIKNDIQPWQERRAAEYMTHAPLGSLNSVGGVATEINSVNFVSPRSWL
ATSHFVLAFFFLVGHLWHAGRARAAAAGFEKGIDRESEPVLSMPSLD

3D structure

PDB

4ixq Simultaneous femtosecond X-ray spectroscopy and diffraction of photosystem II at room temperature.

Chain

Resolution

5.7 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	C	L168 G171 A172 H237 M282 I285 F289 V296 Y297	L142 G145 A146 H211 M256 I259 F263 V270 Y271
BS02	CLA	C	W63 H91 L174 K178 F182 L279 M282 A286 Y297 H430 L433 F437	W37 H65 L148 K152 F156 L253 M256 A260 Y271 H404 L407 F411
BS03	CLA	C	I60 V61 A64 L88 V114 H118	I34 V35 A38 L62 V88 H92
BS04	CLA	C	W63 M67 F70 G85 I87 L404 W425 S429	W37 M41 F44 G59 I61 L378 W399 S403
BS05	CLA	C	Y274 G277 A278 H441 L442 R449	Y248 G251 A252 H415 L416 R423
BS06	CLA	C	L161 L165 L213 I243 G247 W250 H251 T255 P256 F257 W259 F264	L135 L139 L187 I217 G221 W224 H225 T229 P230 F231 W233 F238
BS07	CLA	C	M157 L161 H164 L168 F264 W266 Y271 Y274 S275	M131 L135 H138 L142 F238 W240 Y245 Y248 S249
BS08	CLA	C	W36 A37 N39 A40 L276 F436 F437 G440 W443 H444	W10 A11 N13 A14 L250 F410 F411 G414 W417 H418
BS09	CLA	C	N39 I43 L49 A52 H53 H56 Y149 W151 I160 G268 E269 Y271 L272 S275	N13 I17 L23 A26 H27 H30 Y123 W125 I134 G242 E243 Y245 L246 S249
BS10	CLA	C	H56 L59 I60 W63 F436 F437	H30 L33 I34 W37 F410 F411
BS11	CLA	C	G38 N39 R41 L42 K48 F127 I134	G12 N13 R15 L16 K22 F101 I108
BS12	CLA	C	H53 F147 F163 H164 V167 L168 I170 L174	H27 F121 F137 H138 V141 L142 I144 L148
BS13	CLA	C	L50 V54 G128 Y131 H132 P137 L140 F147	L24 V28 G102 Y105 H106 P111 L114 F121

Gene Ontology

	Molecular Function
GO:0016168	chlorophyll binding
GO:0045156	electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity
GO:0046872	metal ion binding

	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:0005737	cytoplasm
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:4ixq, PDBe:4ixq, PDBj:4ixq
PDBsum	4ixq
PubMed	23413188
UniProt	Q8DIF8\|PSBC_THEVB Photosystem II CP43 reaction center protein (Gene Name=psbC)

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