Structure of PDB 6tcl Chain B1 Binding Site BS42

Receptor Information
>6tcl Chain B1 (length=739) Species: 103690 (Nostoc sp. PCC 7120 = FACHB-418) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
TKFPKFSQDLAQDPTTRRIWYAMAMGNDFESHDGMTEENLYQKIFATHFG
HLAIIFLWASSLLFHVAWQGNFEQWIKDPLHVRPIAHAIWDPHFGKPAIE
AFTQAGANGPVNIAYSGVYHWWYTIGMRTNTELYTGSVFLLLFASLFLFA
GWLHLQPKFRPSLAWFKSAESRLNHHLAGLFGVSSLAWAGHLIHVAIPES
RGQHVGWDNFLSTAPHPAGLQPFFTGNWGVYAQNPDTAGHIFSTSQGAGT
AILTFLGGFHPQTESLWLTDMAHHHLAIAVLFIVAGHMYRTNFGIGHSIK
EMMNAKTFFGKPVEGPFNMPHQGIYDTYNNSLHFQLGWHLACLGVVTSWV
AQHMYSLPSYAFIAKDYTTQAALYTHHQYIAIFLMVGAFAHGAIFLVRDY
DPEQNKGNVLERVLQHKEAIISHLSWVSLFLGFHTLGLYVHNDVVVAFGT
PEKQILIEPVFAQFIQAAHGKVLYGLDTLLSNPDSVAYTAYPNYANVWLP
GWLDAINSGTNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSK
LMPDKKDFGYAFPCDGPGRGGTCDISAWDSFYLSLFWALNTVGWVTFYWH
WKHLGIWQGNVAQFNENSTYLMGWFRDYLWANSAQLINGYNPYGVNNLSV
WAWMFLFGHLVWATGFMFLISWRGYWQELIETLVWAHERTPIANLVRWKD
KPVALSIVQARVVGLAHFTVGYVLTYAAFLIASTAGKFG
Ligand information
Ligand IDPQN
InChIInChI=1S/C31H46O2/c1-22(2)12-9-13-23(3)14-10-15-24(4)16-11-17-25(5)20-21-27-26(6)30(32)28-18-7-8-19-29(28)31(27)33/h7-8,18-20,22-24H,9-17,21H2,1-6H3/b25-20+/t23-,24-/m1/s1
InChIKeyMBWXNTAXLNYFJB-NKFFZRIASA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0CC1=C(C(=O)c2ccccc2C1=O)CC=C(C)CCCC(C)CCCC(C)CCCC(C)C
ACDLabs 10.04O=C2c1c(cccc1)C(=O)C(=C2C)C\C=C(/C)CCCC(C)CCCC(C)CCCC(C)C
OpenEye OEToolkits 1.5.0CC1=C(C(=O)c2ccccc2C1=O)C\C=C(/C)\CCC[C@H](C)CCC[C@H](C)CCCC(C)C
CACTVS 3.341CC(C)CCC[CH](C)CCC[CH](C)CCCC(C)=CCC1=C(C)C(=O)c2ccccc2C1=O
CACTVS 3.341CC(C)CCC[C@@H](C)CCC[C@@H](C)CCCC(/C)=C/CC1=C(C)C(=O)c2ccccc2C1=O
FormulaC31 H46 O2
NamePHYLLOQUINONE;
VITAMIN K1;
2-METHYL-3-PHYTYL-1,4-NAPHTHOQUINONE
ChEMBLCHEMBL1550
DrugBankDB01022
ZINCZINC000003831332
PDB chain6tcl Chain B1 Residue 837 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB6tcl Distinct structural modulation of photosystem I and lipid environment stabilizes its tetrameric assembly.
Resolution3.2 Å
Binding residue
(original residue number in PDB)		W22 M25 M669 F670 S673 W674 R675 W678 A706 L707 A712
Binding residue
(residue number reindexed from 1)		W20 M23 M667 F668 S671 W672 R673 W676 A704 L705 A710
Annotation score1
Enzymatic activity
Enzyme Commision number 1.97.1.12: photosystem I.
Gene Ontology
Molecular Function
GO:0000287 magnesium ion binding
GO:0009055 electron transfer activity
GO:0016168 chlorophyll binding
GO:0016491 oxidoreductase activity
GO:0046872 metal ion binding
GO:0051539 4 iron, 4 sulfur cluster binding
Biological Process
GO:0015979 photosynthesis
Cellular Component
GO:0009522 photosystem I
GO:0009579 thylakoid
GO:0016020 membrane
GO:0031676 plasma membrane-derived thylakoid membrane
GO:0042651 thylakoid membrane

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Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:6tcl, PDBe:6tcl, PDBj:6tcl
PDBsum6tcl
PubMed32170279
UniProtP58565|PSAB1_NOSS1 Photosystem I P700 chlorophyll a apoprotein A2 1 (Gene Name=psaB1)

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