Structure of PDB 1sr6 Chain B Binding Site BS01

Receptor Information

>1sr6 Chain B (length=144) Species: 31199 (Argopecten irradians) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]

PQKQIQEMKEAFSMIDVDRDGFVSKEDIKAISEQLGRAPDDKELTAMLKE
APGPLNFTMFLSIFSDKLSGTDSEETIRNAFAMFDEQETKKLNIEYIKDL
LENMGDNFNKDEMRMTFKEAPVEGGKFDYVKFTAMIKGSGEEEA

Ligand information

InChI=1S/Mg/q+2

JLVVSXFLKOJNIY-UHFFFAOYSA-N

SMILES

Software	SMILES
ACDLabs 10.04 OpenEye OEToolkits 1.5.0	[Mg+2]
CACTVS 3.341	[Mg++]

Formula

Mg

Name

MAGNESIUM ION

PDB chain

1sr6 Chain B Residue 990 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]

Receptor-Ligand Complex Structure

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PDB	1sr6 Myosin subfragment 1 structures reveal a partially bound nucleotide and a complex salt bridge that helps couple nucleotide and actin binding.
Resolution	2.75 Å
Binding residue (original residue number in PDB)	D30 D32 F34 V35
Binding residue (residue number reindexed from 1)	D18 D20 F22 V23
Annotation score	4

Enzymatic activity

Enzyme Commision number

Gene Ontology

	Molecular Function
GO:0005509	calcium ion binding
GO:0032036	myosin heavy chain binding
GO:0046872	metal ion binding

	Cellular Component
GO:0005737	cytoplasm
GO:0016459	myosin complex
GO:0016460	myosin II complex

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Molecular Function

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Cellular Component

External links

PDB	RCSB:1sr6, PDBe:1sr6, PDBj:1sr6
PDBsum	1sr6
PubMed	15184651
UniProt	P13543\|MLR_ARGIR Myosin regulatory light chain, striated adductor muscle

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