6qaz

Crystal structure of gp41-1 intein

spinqualitylabelsall models 6qaz, resolution 1.02Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6qaz is a 1 chain structure with sequence from Metagenome. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.02Å Ligands: 1PE, FLC, PEG Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed Protein trans-splicing catalyzed by split inteins has increasingly become useful as a protein engineering tool. We solved the 1.0 A-resolution crystal structure of a fused variant from the naturally split gp41-1 intein, previously identified from environmental metagenomic sequence data. The structure of the 125-residue gp41-1 intein revealed a compact pseudo-C2-symmetry commonly found in the Hedgehog/Intein (HINT) superfamily with extensive charge-charge interactions between the split N- and C-terminal intein fragments that are common among naturally occurring split inteins. We successfully created orthogonal split inteins by engineering a similar charge network into the same region of a cis-splicing intein. This strategy could be applicable for creating novel natural-like split inteins from other, more prevalent cis-splicing inteins. The crystal structure of the naturally split gp41-1 intein guides the engineering of orthogonal split inteins from cis-splicing inteins.,Michael Beyer H, Malgorzata Mikula K, Li M, Wlodawer A, Iwai H FEBS J. 2019 Oct 30. doi: 10.1111/febs.15113. PMID:31665813 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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