Structure of PDB 7pnk Chain a

Receptor sequence

>7pnka (length=336) Species: 3046 (Dunaliella salina) [Search protein sequence]

ENTSLWARFCEWITSTENRLYIGWFGVIMIPTLLTAISVYIIAFIAAPPV
DIDGIREPVSGSLLYGNNIITGAVVPTSNAIGLHFYPIWEAASLDEWLYN
GGPYQLVVCHFFLGVCCYMGREWELSYRLGMRPWIAVAYSAPVAAATAVF
IIYPIGQGSFSDGMPLGISGTFNFMIVFQAEHNILMHPFHMFGVAGVFGG
SLFSAMHGSLVTSSLIRETTENESANAGYKFGQEEETYNIVAAHGYFGRL
IFQYASFNNSRSLHFFLAVWPVVCIWLTALGISTMAFNLNGFNFNQSVVD
SNGRVLNTWADIINRANLGMEVMHERNAHNFPLDLA

3D structure

PDB

7pnk Structure of Dunaliella Photosystem II reveals conformational flexibility of stacked and unstacked supercomplexes.

Chain

Resolution

3.61 Å

3D
structure

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Enzymatic activity

Enzyme Commision number

1.10.3.9: photosystem II.

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	OEX	a	D170 V185 E189 H332 E333 D342 A344	D162 V177 E181 H324 E325 D334 A336
BS02	FE2	a	H215 H272	H207 H264
BS03	CLA	a	F119 Y147 P150 A153 A154 V157 M183 I192 L193 H198 G201 V202 V205 T286 I290	F111 Y139 P142 A145 A146 V149 M175 I184 L185 H190 G193 V194 V197 T278 I282
BS04	CLA	a	Y48 I49 F119 V157 F158 I176 F180 M183	Y40 I41 F111 V149 F150 I168 F172 M175
BS05	CLA	a	M199 V202 A203 F206 L210	M191 V194 A195 F198 L202
BS06	PHO	a	L41 I45 Y48 F119 Y126 Y147 P150 L174 G175 I283	L33 I37 Y40 F111 Y118 Y139 P142 L166 G167 I275
BS07	PHO	a	F206 L210 M214	F198 L202 M206
BS08	CLA	a	I36 P39 T40 F93 P95 W97 L114 H118 L121	I28 P31 T32 F85 P87 W89 L106 H110 L113
BS09	CLA	a	C117 L121 C124 M127 W131	C109 L113 C116 M119 W123
BS10	BCT	a	E244 Y246	E236 Y238

Gene Ontology

	Molecular Function
GO:0005506	iron ion binding
GO:0009055	electron transfer activity
GO:0010242	oxygen evolving activity
GO:0016168	chlorophyll binding
GO:0016491	oxidoreductase activity
GO:0016682	oxidoreductase activity, acting on diphenols and related substances as donors, oxygen as acceptor
GO:0045156	electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity
GO:0046872	metal ion binding

	Biological Process
GO:0009635	response to herbicide
GO:0009772	photosynthetic electron transport in photosystem II
GO:0015979	photosynthesis
GO:0019684	photosynthesis, light reaction

	Cellular Component
GO:0009507	chloroplast
GO:0009523	photosystem II
GO:0009535	chloroplast thylakoid membrane
GO:0009579	thylakoid
GO:0016020	membrane

View graph for
Molecular Function

View graph for
Biological Process

View graph for
Cellular Component

External links

PDB	RCSB:7pnk, PDBe:7pnk, PDBj:7pnk
PDBsum	7pnk
PubMed	36799903
UniProt	D0FY08

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