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4B1U

Structure of the Phactr1 RPEL domain and RPEL motif directed assemblies with G-actin reveal the molecular basis for actin binding cooperativity.

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(B)
ACTIN, ALPHA SKELETAL MUSCLEpolymer37641965.81UniProt (P68134)
Pfam (PF00022)
ORYCTOLAGUS CUNICULUS (RABBIT)ALPHA-ACTIN-1
2B
(M)
PHOSPHATASE AND ACTIN REGULATOR 1polymer323842.51UniProt (G5E8P7)
Pfam (PF02755)
UniProt (by SIFTS) (Q2M3X8)
ORYCTOLAGUS CUNICULUSPHOSPHATASE AND ACTIN REGULATOR 1\, ISOFORM CRA_C
3C
(B)
LATRUNCULIN Bnon-polymer395.51Chemie (LAB)
4D
(B)
ADENOSINE-5'-TRIPHOSPHATEnon-polymer507.21Chemie (ATP)
5E
(B)
MAGNESIUM IONnon-polymer24.31Chemie (MG)
6F
(B)
2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOLnon-polymer122.11Chemie (TRS)
7G
(M)
CALCIUM IONnon-polymer40.11Chemie (CA)
8H, I
(B, M)
waterwater18.0155Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight45808.2
Non-Polymers*Number of molecules5
Total formula weight1089.2
All*Total formula weight46897.5
*Water molecules are not included.

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PDB entries from 2025-06-11

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