6F08 image
Deposition Date 2017-11-17
Release Date 2018-02-14
Last Version Date 2024-10-09
Entry Detail
PDB ID:
6F08
Keywords:
PEPTIDE BINDING PROTEIN
Title:
14-3-3 zeta in complex with the human Son of sevenless homolog 1 (SOS1)
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.90 Å
R-Value Free:
0.26
R-Value Work:
0.21
R-Value Observed:
0.21
Space Group:
P 1 21 1
6F08 validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:14-3-3 protein zeta/delta
Gene (Uniprot):YWHAZ
Chain IDs:A, B, D (auth: I), E (auth: J)
Chain Length:230
Number of Molecules:4
Biological Source:Homo sapiens
UniProt ID:P63104 Pfam ID:PF00244
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Son of sevenless homolog 1
Gene (Uniprot):SOS1
Chain IDs:C (auth: D), F (auth: K), G (auth: N), H (auth: Q)
Chain Length:13
Number of Molecules:4
Biological Source:Homo sapiens
UniProt ID:Q07889
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
SEP C SER modified residue
Ligand Molecules
1PE
Primary Citation
Structural characterization of 14-3-3 zeta in complex with the human Son of sevenless homolog 1 (SOS1).
J. Struct. Biol. 202 210 215 (2018)
PMID: 29408703 DOI: 10.1016/j.jsb.2018.01.011

Abstact

The deviant Ras activation machinery is found in approximately 30% of all human cancers. SOS1 is an important protagonist of this pathway that plays a key-role in aberrant cell proliferation and differentiation. Interaction of SOS1 with 14-3-3 proteins modulates SOS1 activity in Ras-MAPK signaling. In the present study, we analyze the 14-3-3/SOS1 protein-protein interaction (PPI) by different biochemical assays and report the high resolution crystal structure of a 13-mer motif of SOS1 bound to 14-3-3ζ. These structural and functional insights are important for the evaluation of this PPI interface for small-molecule stabilization as a new starting point for modulating the Ras-Raf-MAPK pathway.

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Disease

Primary Citation of related structures
6F08