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.
Explore 4CFR in 3D Show helices and sheets RCSB PDB PDBe
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.
| Element | Residues | Length | Sheet |
|---|---|---|---|
| α-helix | 4-20 | 17 | |
| β-strand | 29 | 1 | 1 |
| α-helix | 31-41 | 11 | |
| α-helix | 43-45 | 3 | |
| α-helix | 52-62 | 11 | |
| β-strand | 70 | 1 | 1 |
| α-helix | 72-92 | 21 |
| Element | Residues | Length | Sheet |
|---|---|---|---|
| α-helix | 4-20 | 17 | |
| β-strand | 29 | 1 | 2 |
| α-helix | 31-41 | 11 | |
| α-helix | 43-45 | 3 | |
| β-strand | 46 | 1 | 3 |
| α-helix | 52-62 | 11 | |
| β-strand | 70 | 1 | 2 |
| α-helix | 72-91 | 20 |
| Element | Residues | Length | Sheet |
|---|---|---|---|
| α-helix | 1899-1903 | 5 | |
| α-helix | 1907-1922 | 16 | |
| β-strand | 1929 | 1 | 3 |
| Molecule | Chains | Type | Length | Organism | UniProt |
|---|---|---|---|---|---|
| Protein S100-A4 | A, B | protein | 104 | HOMO SAPIENS | P26447 (AlphaFold model) |
| Myosin-9 | Q | protein | 45 | HOMO SAPIENS | P35579 (AlphaFold model) |
>4CFR_1 PROTEIN S100-A4 (chains A, B) GSHMASPLEKALDVMVSTFHKYSGKEGDKFKLNKSELKELLTRELPSWLGKRTDEAAFQK LMSNLDSNRDNEVDFQEYCVFLSSIAMMSNEFFEGFPDKQPRKK
>4CFR_2 MYOSIN-9 (chains Q) YRKLQRELEDATETADAMNREVSSLKNKLRRGDLPFVVPRRMARK
| ID | Name | Formula | Copies |
|---|---|---|---|
| CA | Calcium ion | Ca | 4 |
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:
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