Jorge LUIS Folch-Mallol A Family 13 thioesterase isolated from an activated sludge metagenome: insights into aromatic compounds metabolism Short Title: Novel hotdog fold thioesterase Keywords: metagenomics; functional high-throughput screenings; molecular grafting; genetic complementation; swimming motility phenotypes Ayixon Sánchez-Reyez 1,2 , Ramón Alberto Batista-García 1 , Gilberto Valdés-García 1 , Ernesto Ortiz 3 , Lucía Perezgasga 3 , Andrés Zárate-Romero 2 Nina Pastor 1* , Jorge Luis Folch-Mallol 2* 1 Centro de Investigación en Dinámica Celular, IICBA, Universidad Autónoma del Estado de Morelos (UAEM). Ave. Universidad 1001. Colonia Chamilpa, CP 62209. Cuernavaca, Morelos. Mexico. 2 Centro de Investigación en Biotecnología, UAEM. Ave. Universidad 1001. Colonia Chamilpa, CP 62209. Cuernavaca, Morelos. Mexico. 3 Instituto de Biotecnología. Universidad Nacional Autónoma de México. Ave. Universidad 1001. Colonia Chamilpa, CP 62210. Cuernavaca, Morelos. Mexico. * Corresponding authors Jorge Luis Folch-Mallol Centro de Investigación en Biotecnología, UAEM. Ave. Universidad 1001. Colonia Chamilpa, CP 62209. Cuernavaca, Morelos, Mexico e-mail: jordi@uaem.mx Research Article Proteins: Structure, Function and Bioinformatics DOI 10.1002/prot.25282 This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process which may lead to differences between this version and the Version of Record. Please cite this article as an ‘Accepted Article’, doi: 10.1002/prot.25282 © 2017 Wiley Periodicals, Inc. Received: Oct 26, 2016; Revised: Feb 21, 2017; Accepted: Feb 27, 2017 This article is protected by copyright. All rights reserved.