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7ba9

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Cys-42-tethered stabilizer 11 of 14-3-3(sigma)/ERa PPI

Structural highlights

7ba9 is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 1.48Å
Ligands:	, ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

1433S_HUMAN Adapter protein implicated in the regulation of a large spectrum of both general and specialized signaling pathways. Binds to a large number of partners, usually by recognition of a phosphoserine or phosphothreonine motif. Binding generally results in the modulation of the activity of the binding partner. When bound to KRT17, regulates protein synthesis and epithelial cell growth by stimulating Akt/mTOR pathway (By similarity). p53-regulated inhibitor of G2/M progression.

Publication Abstract from PubMed

The systematic discovery of functional fragments binding to the composite interface of protein complexes is a first critical step for the development of orthosteric stabilizers of protein-protein interactions (PPIs). We have previously shown that disulfide trapping successfully yielded covalent stabilizers for the PPI of 14-3-3 with the estrogen receptor ERalpha. Here we provide an assessment of the composite PPI target pocket and the molecular characteristics of various fragments binding to a specific subpocket. Evaluating structure-activity relationships highlights the basic principles for PPI stabilization by these covalent fragments that engage a relatively large and exposed binding pocket at the protein/peptide interface with a "molecular glue" mode of action.

Exploration of a 14-3-3 PPI Pocket by Covalent Fragments as Stabilizers.,Sijbesma E, Hallenbeck KK, Andrei SA, Rust RR, Adriaans JMC, Brunsveld L, Arkin MR, Ottmann C ACS Med Chem Lett. 2021 May 10;12(6):976-982. doi: , 10.1021/acsmedchemlett.1c00088. eCollection 2021 Jun 10. PMID:34136078^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Sijbesma E, Hallenbeck KK, Andrei SA, Rust RR, Adriaans JMC, Brunsveld L, Arkin MR, Ottmann C. Exploration of a 14-3-3 PPI Pocket by Covalent Fragments as Stabilizers. ACS Med Chem Lett. 2021 May 10;12(6):976-982. PMID:34136078 doi:10.1021/acsmedchemlett.1c00088