The first succinylome profile of Trichophyton rubrum reveals lysine succinylation on proteins involved in various key cellular processes.

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ID: 59573
2017
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Abstract
Dermatophytes, the most common cause of fungal infections, affect millions of individuals worldwide. They pose a major threat to public health because of the severity and longevity of infections caused by dermatophytes and their refractivity to therapy. Trichophyton rubrum (T. rubrum), the most common dermatophyte species, is a promising model organism for dermatophyte research. Post-translational modifications (PTMs) have been shown to be essential for many biological processes, particularly in the regulation of key cellular processes that contribute to pathogenicity. Although PTMs have important roles, little is known about their roles in T. rubrum and other dermatophytes. Succinylation is a new PTM that has recently been identified. In this study, we assessed the proteome-wide succinylation profile of T. rubrum. This study sought to systematically identify the succinylated sites and proteins in T. rubrum and to reveal the roles of succinylated proteins in various cellular processes as well as the differences in the succinylation profiles in different growth stages of the T. rubrum life cycle.A total of 569 succinylated lysine sites were identified in 284 proteins. These succinylated proteins are involved in various cellular processes, such as metabolism, translation and epigenetic regulation. Additionally, 24 proteins related to pathogenicity were found to be succinylated. Comparison of the succinylome at the conidia and mycelia stages revealed that most of the succinylated proteins and sites were growth-stage specific. In addition, the succinylation modifications on histone and ribosomal proteins were significantly different between these two growth stages. Moreover, the sequence features surrounding the succinylated sites were different in the two stages, thus indicating the specific recognition of succinyltransferases in each growth phase.In this study, we explored the first T. rubrum succinylome, which is also the first PTM analysis of dermatophytes reported to date. These results revealed the major roles of the succinylated proteins involved in T. rubrum and the differences in the succinylomes between the two major growth stages. These findings should improve understanding of the physiological and pathogenic properties of dermatophytes and facilitate future development of novel drugs and therapeutics for treating superficial fungal infections.
Reference Key
xu2017thebmc Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Xu, Xingye;Liu, Tao;Yang, Jian;Chen, Lihong;Liu, Bo;Wei, Candong;Wang, Lingling;Jin, Qi;
Journal BMC genomics
Year 2017
DOI
10.1186/s12864-017-3977-y
URL
http://link.springer.com/article/10.1186/s12864-017-3977-y
Keywords
dermatophyte lysine succinylation (ksucc) post-translational modification (ptm) trichophyton rubrum (t. rubrum)

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