1PQS image
Deposition Date 2003-06-19
Release Date 2003-07-01
Last Version Date 2024-05-29
Entry Detail
PDB ID:
1PQS
Keywords:
CELL CYCLE
Title:
Solution structure of the C-terminal OPCA domain of yCdc24p
Biological Source:
Source Organism:
Saccharomyces cerevisiae (Taxon ID: 4932)
Host Organism:
Escherichia coli BL21(DE3)
Method Details:
Experimental Method:
SOLUTION NMR
Conformers Calculated:
200
Conformers Submitted:
20
Selection Criteria:
structures with the lowest energy
1PQS validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cell division control protein 24
Gene (Uniprot):CDC24
Chain IDs:A
Chain Length:77
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P11433
Ligand Molecules
NA
Primary Citation
The solution structure of an N-terminally truncated version of the yeast CDC24p PB1 domain shows a different beta-sheet topology.
Febs Lett. 579 3534 3538 (2005)
PMID: 15961083 DOI: 10.1016/j.febslet.2005.05.025

Abstact

Phox and Bem1 (PB1) domains mediate protein-protein interactions via the formation of homo- or hetero-dimers. The C-terminal PB1 domain of yeast cell division cycle 24 (CDC24p), a guanine-nucleotide exchange factor involved in cell polarity establishment, is known to interact with the PB1 domain occurring in bud emergence MSB1 interacting 1 (BEM1p) during the regulation of the yeast budding process via its OPR/PC/AID (OPCA) motif. Here, we present the structure of an N-terminally truncated version of the Sc CDC24p PB1 domain. It shows a different topology of the beta-sheet than the long form. However, the C-terminal part of the structure shows the conserved PB1 domain features including the OPCA motif with a slight rearrangement of helix alpha1. Residues which are important for the heterodimerization with BEM1p are structurally preserved.

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Primary Citation of related structures
1PQS