Universidad Peruana Cayetano Heredia

Whole Genome Analysis of Leptospira licerasiae Provides Insight into Leptospiral Evolution and Pathogenicity

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dc.contributor.author Ricaldi, J.N.
dc.contributor.author Fouts, D.E.
dc.contributor.author Selengut, J.D.
dc.contributor.author Harkins, D.M.
dc.contributor.author Patra, K.P.
dc.contributor.author Moreno, A.
dc.contributor.author Lehmann, J.S.
dc.contributor.author Purushe, J.
dc.contributor.author Sanka, R.
dc.contributor.author Torres, M.
dc.contributor.author Webster, N.J.
dc.contributor.author Vinetz, Joseph Michael
dc.contributor.author Matthias, M.A.
dc.date.accessioned 2022-01-18T19:34:38Z
dc.date.available 2022-01-18T19:34:38Z
dc.date.issued 2012
dc.identifier.uri https://hdl.handle.net/20.500.12866/11082
dc.description.abstract The whole genome analysis of two strains of the first intermediately pathogenic leptospiral species to be sequenced (Leptospira licerasiae strains VAR010 and MMD0835) provides insight into their pathogenic potential and deepens our understanding of leptospiral evolution. Comparative analysis of eight leptospiral genomes shows the existence of a core leptospiral genome comprising 1547 genes and 452 conserved genes restricted to infectious species (including L. licerasiae) that are likely to be pathogenicity-related. Comparisons of the functional content of the genomes suggests that L. licerasiae retains several proteins related to nitrogen, amino acid and carbohydrate metabolism which might help to explain why these Leptospira grow well in artificial media compared with pathogenic species. L. licerasiae strains VAR010T and MMD0835 possess two prophage elements. While one element is circular and shares homology with LE1 of L. biflexa, the second is cryptic and homologous to a previously identified but unnamed region in L. interrogans serovars Copenhageni and Lai. We also report a unique O-antigen locus in L. licerasiae comprised of a 6-gene cluster that is unexpectedly short compared with L. interrogans in which analogous regions may include >90 such genes. Sequence homology searches suggest that these genes were acquired by lateral gene transfer (LGT). Furthermore, seven putative genomic islands ranging in size from 5 to 36 kb are present also suggestive of antecedent LGT. How Leptospira become naturally competent remains to be determined, but considering the phylogenetic origins of the genes comprising the O-antigen cluster and other putative laterally transferred genes, L. licerasiae must be able to exchange genetic material with non-invasive environmental bacteria. The data presented here demonstrate that L. licerasiae is genetically more closely related to pathogenic than to saprophytic Leptospira and provide insight into the genomic bases for its infectiousness and its unique antigenic characteristics. en_US
dc.language.iso eng
dc.publisher Public Library of Science
dc.relation.ispartofseries PLoS Neglected Tropical Diseases
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject Humans en_US
dc.subject non polymerase chain reaction en_US
dc.subject Molecular Sequence Data en_US
dc.subject gene sequence en_US
dc.subject Sequence Analysis, DNA en_US
dc.subject Evolution, Molecular en_US
dc.subject DNA, Bacterial en_US
dc.subject sequence homology en_US
dc.subject gene locus en_US
dc.subject Virulence Factors en_US
dc.subject amino acid sequence en_US
dc.subject genome analysis en_US
dc.subject genetic recombination en_US
dc.subject Leptospira en_US
dc.subject bacterial virulence en_US
dc.subject molecular evolution en_US
dc.subject antigen structure en_US
dc.subject bacterial genome en_US
dc.subject bacterium lipopolysaccharide en_US
dc.subject mass fragmentography en_US
dc.subject O antigen en_US
dc.subject Genome, Bacterial en_US
dc.subject antitoxin en_US
dc.subject cobalamin en_US
dc.subject gene regulatory network en_US
dc.subject Gene Transfer, Horizontal en_US
dc.subject Genomic Islands en_US
dc.subject Leptospira licerasiae en_US
dc.subject Multigene Family en_US
dc.subject Prophages en_US
dc.subject riboswitch en_US
dc.subject saprotroph en_US
dc.title Whole Genome Analysis of Leptospira licerasiae Provides Insight into Leptospiral Evolution and Pathogenicity en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1371/journal.pntd.0001853
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#3.03.06
dc.relation.issn 1935-2735


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