6l9b | pdb_00006l9b

X-ray structure of synthetic GB1 domain with mutations K10(DVA), T11A

spinqualitylabelsall models 6l9b, resolution 1.95Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6l9b is a 1 chain structure with sequence from Streptococcus sp. 'group G'. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.95Å Ligands: DVA Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function SPG1_STRSG Binds to the constant Fc region of IgG with high affinity. Publication Abstract from PubMed Abundant n --> pi* interactions between adjacent backbone carbonyl groups, identified by statistical analysis of protein structures, are predicted to play an important role in dictating the structure of proteins. However, experimentally testing the prediction in proteins has been challenging due to the weak nature of this interaction. By amplifying the strength of the n --> pi* interaction via amino acid substitution and thioamide incorporation at a solvent exposed beta-turn within the GB1 proteins and Pin 1 WW domain, we demonstrate that an n --> pi* interaction increases the structural stability of proteins by restricting the varphi torsion angle. Our results also suggest that amino acid side-chain identity and its rotameric conformation play an important and decisive role in dictating the strength of an n --> pi* interaction. Increasing protein stability by engineering the n --> pi* interaction at the beta-turn.,Khatri B, Majumder P, Nagesh J, Penmatsa A, Chatterjee J Chem Sci. 2020 Jul 30;11(35):9480-9487. doi: 10.1039/d0sc03060k. PMID:34094214 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Protein G

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