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. 2022 May 12;10(5):1016. doi: 10.3390/microorganisms10051016

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Structural analysis of A. citrulli M6 Lip1. (A) Structural alignment between Lip1 (blue ribbon), and the passenger domain of the autotransporter EstA from Pseudomonas aeruginosa (green ribbon; PDB code 3KVN). (B) Predicted structural model of Lip1 generated by I-TASSER, and (C) Lip1 sequence. Conserved residues and motifs are highlighted and shown in sticks as follows: red, catalytic triad; green (and red for Ser46), GDSL motif; blue, GXSXG motif; purple, oxyanion hole residues; and grey, putative lid loop (ribbon only). The secretion signal peptide as predicted by Pred-Tat and Phobius is highlighted yellow in the protein sequence.