2BTF image
Deposition Date 1994-01-18
Release Date 1994-06-22
Last Version Date 2025-03-26
Entry Detail
PDB ID:
2BTF
Keywords:
ACETYLATION AND ACTIN-BINDING
Title:
THE STRUCTURE OF CRYSTALLINE PROFILIN-BETA-ACTIN
Biological Source:
Source Organism:
Bos taurus (Taxon ID: 9913)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.55 Å
R-Value Work:
0.19
R-Value Observed:
0.19
Space Group:
P 21 21 21
2BTF validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:BETA-ACTIN
Gene (Uniprot):ACTB
Chain IDs:A
Chain Length:375
Number of Molecules:1
Biological Source:Bos taurus
UniProt ID:P60712 Pfam ID:PF00022
Protein Blast
Polymer Type:polypeptide(L)
Molecule:PROFILIN
Gene (Uniprot):PFN1
Chain IDs:B (auth: P)
Chain Length:140
Number of Molecules:1
Biological Source:Bos taurus
UniProt ID:P02584 Pfam ID:PF00235
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
HIC A HIS 4-METHYL-HISTIDINE
Ligand Molecules
ATP
SR
Primary Citation
The structure of crystalline profilin-beta-actin.
Nature 365 810 816 (1993)
PMID: 8413665 DOI: 10.1038/365810a0

Abstact

The three-dimensional structure of bovine profilin-beta-actin has been solved to 2.55 A resolution by X-ray crystallography. There are several significant local changes in the structure of beta-actin compared with alpha-actin as well as an overall 5 degrees rotation between its two major domains. Actin molecules in the crystal are organized into ribbons through intermolecular contacts like those found in oligomeric protein assemblies. Profilin forms two extensive contacts with the actin ribbon, one of which appears to correspond to the solution contact in vitro.

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Primary Citation of related structures
2BTF