Dataset Information

Differentially O-GlcNAcylated proteins and sites in Y.pestis

ABSTRACT: Differentially O-GlcNAcylated proteins and sites in Y. pestis strains under Fv and Mh.

ORGANISM(S): Yersinia Pestis Co92

SUBMITTER: Ruifu Yang

PROVIDER: PXD042927 | iProX | Mon Jun 12 00:00:00 BST 2023

REPOSITORIES: iProX

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Publications

A protein O-GlcNAc glycosyltransferase regulates the antioxidative response in Yersinia pestis.

Cao Shiyang S Wang Tong T Ren Yifan Y Wu Gengshan G Zhang Yuan Y Tan Yafang Y Zhou Yazhou Y Chen Hongyan H Zhang Yu Y Song Yajun Y Yang Ruifu R Du Zongmin Z

Nature communications 20240816 1

Post-translational addition of O-linked N-acetylglucosamine (O-GlcNAc) to proteins is commonly associated with a variety of stress responses and cellular processes in eukaryotes, but its potential roles in bacteria are unclear. Here, we show that protein HmwC acts as an O-GlcNAc transferase (OGT) responsible for O-GlcNAcylation of multiple proteins in Yersinia pestis, a flea-borne pathogen responsible for plague. We identify 64 O-GlcNAcylated proteins (comprising 65 sites) with differential abun ...[more]

PMID: 39152136

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Project description:Yunnan Province, China is thought to be the original source of biovar Orientalis of Yersinia pestis, the causative agent of the third plague pandemic that has spread globally since the end of the 19th century. Although encompassing a large area of natural plague foci, Y. pestis strains have rarely been found in live rodents during surveillance in Yunnan, and most isolates are from rodent corpses and their fleas. In 2017, 10 Y. pestis strains were isolated from seven live rodents and three fleas in Heqing County (HQ) of Yunnan. These strains were supposed to have low virulence to local rodents Eothenomys miletus and Apodemus chevrieri because the rodents were healthy and no dead animals were found in surrounding areas, as had occurred in previous epizootic disease. We performed microscopic and biochemical examinations of the isolates,and compared their whole-genome sequences and transcriptome with those of 10 high virulence Y. pestis strains that were isolated from the adjacent city (Lijiang). We analyzed the phenotypic, genomic, and transcriptomic characteristics of live rodent isolates. The isolates formed a previously undefined monophyletic branch of Y. pestis that was named 1.IN5. Six SNPs, two indels, and one copy number variation were detected between live rodent isolates and the high virulence neighbors. No obvious functional consequence of these variations was found according to the known annotation information. Among the genes that were differentially expressed between the live rodent isolates and their high virulence neighbors, we detected five iron transfer-related genes that were significantly up-regulated in live rodent isolates compared with high virulence isolates (|log2 (FC) | >1, p.adjust <0.05), indicating these genes may be related to the low-virulence phenotype. The novel genotype of Y. pestis reported here provides further insights into the evolution and spread of plague as well as clues that may help to decipher the virulence mechanism of this notorious pathogen.

Dataset Information

Differentially O-GlcNAcylated proteins and sites in Y.pestis

Publications

A protein O-GlcNAc glycosyltransferase regulates the antioxidative response in Yersinia pestis.

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