Structure of PDB 1rfq Chain B

Receptor sequence
>1rfqB (length=361) Species: 9986 (Oryctolagus cuniculus) [Search protein sequence]
TTALVCDNGSGLVKAGFAGDDAPRAVFPSIVGRPRHDSYVGDEAQSKRGI
LTLKYPIEHGIITNWDDMEKIWHHTFYNELRVAPEEHPTLLTEAPLNPKA
NREKMTQIMFETFNVPAMYVAIQAVLSLYASGRTTGIVLDSGDGVTHNVP
IYEGYALPHAIMRLDLAGRDLTDYLMKILTERGYSFVTTAEREIVRDIKE
KLCYVALDFENEMATAASSSSLEKSYELPDGQVITIGNERFRCPETLFQP
SFIGMESAGIHETTYNSIMKCDIDIRKDLYANNVMSGGTTMYPGIADRMQ
KEITALAPSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWITKQEYDE
AGPSIVHRKCF
3D structure
PDB1rfq Actin crystal dynamics: structural implications for F-actin nucleation, polymerization, and branching mediated by the anti-parallel dimer.
ChainB
Resolution3.0 Å
3D
structure
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Enzymatic activity
Enzyme Commision number 3.6.4.-
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)		 Binding affinity
BS01 MG B G13 Q137 G9 Q123
BS02 ATP B G13 S14 G15 L16 G156 D157 V159 R210 K213 E214 G301 G302 T303 M305 Y306 K336 G9 S10 G11 L12 G142 D143 V145 R196 K199 E200 G287 G288 T289 M291 Y292 K322
BS03 LAR B D56 Q59 R183 T186 E207 R210 D42 Q45 R169 T172 E193 R196
Gene Ontology
Molecular Function
GO:0000287 magnesium ion binding
GO:0003785 actin monomer binding
GO:0005509 calcium ion binding
GO:0005515 protein binding
GO:0005523 tropomyosin binding
GO:0005524 ATP binding
GO:0016787 hydrolase activity
GO:0019904 protein domain specific binding
GO:0031013 troponin I binding
GO:0031432 titin binding
GO:0032036 myosin heavy chain binding
GO:0042802 identical protein binding
GO:0048306 calcium-dependent protein binding
GO:0140660 cytoskeletal motor activator activity
Biological Process
GO:0010628 positive regulation of gene expression
GO:0030041 actin filament polymerization
GO:0030240 skeletal muscle thin filament assembly
GO:0048741 skeletal muscle fiber development
GO:0051017 actin filament bundle assembly
GO:0090131 mesenchyme migration
Cellular Component
GO:0001725 stress fiber
GO:0005737 cytoplasm
GO:0005856 cytoskeleton
GO:0005865 striated muscle thin filament
GO:0005884 actin filament
GO:0030027 lamellipodium
GO:0030175 filopodium
GO:0031941 filamentous actin
GO:0032432 actin filament bundle
GO:0044297 cell body
GO:0098723 skeletal muscle myofibril

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Cellular Component
External links
PDB RCSB:1rfq, PDBe:1rfq, PDBj:1rfq
PDBsum1rfq
PubMed15099571
UniProtP68135|ACTS_RABIT Actin, alpha skeletal muscle (Gene Name=ACTA1)

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