4CFR: Ca-bound S100A4 C3S, C81S, C86S and F45W mutant

Ca-bound S100A4 C3S, C81S, C86S and F45W mutant complexed with non- muscle myosin IIA. Determined by X-ray diffraction at 1.4 Å resolution. Released 7 May 2014.

Method
X-ray diffraction
Resolution
1.4 Å
Organism
HOMO SAPIENS
Chains
3
Atoms
2,220
Mol. weight
29.56 kDa
Ligands
CA
Released
7 May 2014

Explore 4CFR in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

4CFR contains 12 α-helices and 6 β-strands across 3 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 5 helices, 2 β-strands

ElementResiduesLengthSheet
α-helix4-2017
β-strand2911
α-helix31-4111
α-helix43-453
α-helix52-6211
β-strand7011
α-helix72-9221
Chain B: 5 helices, 3 β-strands
ElementResiduesLengthSheet
α-helix4-2017
β-strand2912
α-helix31-4111
α-helix43-453
β-strand4613
α-helix52-6211
β-strand7012
α-helix72-9120
Chain Q: 2 helices, 1 β-strand
ElementResiduesLengthSheet
α-helix1899-19035
α-helix1907-192216
β-strand192913

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Protein S100-A4A, Bprotein104HOMO SAPIENSP26447 (AlphaFold model)
Myosin-9Qprotein45HOMO SAPIENSP35579 (AlphaFold model)
Sequence of entity 1 (A, B), FASTA
>4CFR_1 PROTEIN S100-A4 (chains A, B)
GSHMASPLEKALDVMVSTFHKYSGKEGDKFKLNKSELKELLTRELPSWLGKRTDEAAFQK
LMSNLDSNRDNEVDFQEYCVFLSSIAMMSNEFFEGFPDKQPRKK
Sequence of entity 2 (Q), FASTA
>4CFR_2 MYOSIN-9 (chains Q)
YRKLQRELEDATETADAMNREVSSLKNKLRRGDLPFVVPRRMARK

Ligands and cofactors

IDNameFormulaCopies
CACalcium ionCa4

Primary citation

The C-Terminal Random Coil Region Tunes the Ca2+-Binding Affinity of S100A4 Through Conformational Activation. Duelli, A., Kiss, B., Lundholm, I. et al. PLoS One (2014) 9:97654. DOI 10.1371/JOURNAL.PONE.0097654 · PubMed

Other PDB entries of the same protein (UniProt P26447 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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