Coupling backbone flexibility and amino acid sequence selection in protein design


Abstract

Using a protein design algorithm that considers side-chain packing quantitatively, the effect of explicit backbone motion on the selection of amino acids in protein design was assessed in the core of the streptococcal protein G βI domain (GβI). Concerted backbone motion was introduced by varying Gβl’s supersecondary structure parameter values. The stability and structural flexibility of seven of the redesigned proteins were determined experimentally and showed that core variants containing as many as 6 of 10 possible mutations retain native-like properties. This result demonstrates that backbone flexibility can be combined explicitly with amino acid side-chain selection and that the selection algorithm is sufficiently robust to tolerate perturbations as large as 15% of Gβl’s native supersecondary structure parameter values.

Submission Details

ID: 7Ed9NkKv

Submitter: Marie Ary

Submission Date: March 8, 2017, 3:01 p.m.

Version: 4

Publication Details
Su A;Mayo SL,Protein Sci (1997) Coupling backbone flexibility and amino acid sequence selection in protein design. PMID:9260282
Additional Information

Structure view and single mutant data analysis

Study data

No weblogo for data of varying length.
Colors: D E R H K S T N Q A V I L M F Y W C G P
 

Data Distribution

Studies with similar sequences (approximate matches)

Correlation with other assays (exact sequence matches)