1C0F: Dictyostelium caatp-actin

Crystal structure of dictyostelium caatp-actin in complex with gelsolin segment 1. Determined by X-ray diffraction at 2.4 Å resolution. Released 1 Mar 2000.

Method
X-ray diffraction
Resolution
2.4 Å
Organisms
Homo sapiens, Dictyostelium discoideum
Chains
2
Atoms
4,312
Mol. weight
55.79 kDa
Ligands
CA, ATP
Released
1 Mar 2000

Explore 1C0F in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1C0F contains 33 α-helices and 28 β-strands across 2 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: 26 helices, 21 β-strands

ElementResiduesLengthSheet
β-strand8-1253
β-strand16-2163
β-strand2214
β-strand2414
β-strand29-3243
β-strand35-3845
β-strand53-5425
α-helix56-605
α-helix62-643
β-strand65-6845
β-strand71-7226
β-strand75-7626
α-helix79-879
α-helix88-947
α-helix98-1003
β-strand103-10753
α-helix113-1219
α-helix122-1265
β-strand131-13663
α-helix137-1448
β-strand150-15567
β-strand160-16677
β-strand169-17027
α-helix172-1743
β-strand176-17837
α-helix182-19615
α-helix203-21614
α-helix223-23210
β-strand238-24148
β-strand247-25048
α-helix253-26210
α-helix264-2674
α-helix272-2732
α-helix274-28310
α-helix287-2948
β-strand297-30047
α-helix302-3043
α-helix309-32012
α-helix326-3272
β-strand329-33027
α-helix335-3373
α-helix338-34811
α-helix350-3523
β-strand357-35823
α-helix359-3657
α-helix366-3694
α-helix370-3734
Chain S: 7 helices, 7 β-strands
ElementResiduesLengthSheet
α-helix8-125
β-strand18-2581
β-strand28-3141
α-helix32-332
α-helix34-363
β-strand39-4132
β-strand45-5391
α-helix581
β-strand59-6791
α-helix73-8917
β-strand94-10071
α-helix106-1094
β-strand117-11932
α-helix123-1253

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Gelsolin segment 1Sprotein127Homo sapiensP06396 (AlphaFold model)
ActinAprotein368Dictyostelium discoideumP07830 (AlphaFold model)
Sequence of entity 1 (S), FASTA
>1C0F_1 GELSOLIN SEGMENT 1 (chains S)
MGSVVEHPEFLKAGKEPGLQIWRVEKFDLVPVPTCLYGDFFTGDAYVILKTVQLRNGNLQ
YDLHYWLGNECSQDESGAAAIFTVQLDDYLNGRAVQHREVQGFESATFLGYFKSGLKYKK
GGVASGF
Sequence of entity 2 (A), FASTA
>1C0F_2 ACTIN (chains A)
DGEDVQALVIDNGSGMCKAGFAGDDAPRAVFPSIVGRPRHTGKDSYVGDEAQSKRGILTL
KYPIEHGIVTNWDDMEKIWHHTFYNELRVAPEEHPVLLTEAPLNPKANREKMTQIMFETF
NTPAMYVAIQAVLSLYASGRTTGIVMDSGDGVSHTVPIYEGYALPHAILRLDLAGRDLTD
YMMKILTERGYSFTTTAEREIVRDIKEKLAYVALDFEAEMQTAASSSALEKSYELPDGQV
ITIGNERFRCPEALFQPSFLGMESAGIHETTYNSIMKCDVDIRKDLYGNVVLSGGTTMFP
GIADRMNKELTALAPSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWISKEEYDESGP
SIVHRKCF

Ligands and cofactors

IDNameFormulaCopies
CACalcium ionCa3
ATPAdenosine-5'-triphosphateC10 H16 N5 O13 P31

Primary citation

Structural basis for the higher Ca(2+)-activation of the regulated actin-activated myosin ATPase observed with Dictyostelium/Tetrahymena actin chimeras. Matsuura, Y., Stewart, M., Kawamoto, M. et al. J Mol Biol (2000) 296:579-595. DOI 10.1006/jmbi.1999.3467 · PubMed

Other PDB entries of the same protein (UniProt P06396 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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