作者
Chen Ding, Jun Yin, Edgar Mauricio Medina Tovar, David A Fitzpatrick, Desmond G Higgins, Dennis J Thiele
发表日期
2011/9
期刊
Molecular microbiology
卷号
81
期号
6
页码范围
1560-1576
出版商
Blackwell Publishing Ltd
简介
Cryptococcus neoformans is a human fungal pathogen that is the causative agent of cryptococcosis and fatal meningitis in immuno‐compromised hosts. Recent studies suggest that copper (Cu) acquisition plays an important role in C. neoformans virulence, as mutants that lack Cuf1, which activates the Ctr4 high affinity Cu importer, are hypo‐virulent in mouse models. To understand the constellation of Cu‐responsive genes in C. neoformans and how their expression might contribute to virulence, we determined the transcript profile of C. neoformans in response to elevated Cu or Cu deficiency. We identified two metallothionein genes (CMT1 and CMT2), encoding cysteine‐rich Cu binding and detoxifying proteins, whose expression is dramatically elevated in response to excess Cu. We identified a new C. neoformans Cu transporter, CnCtr1, that is induced by Cu deficiency and is distinct from CnCtr4 and which …
引用总数
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C Ding, J Yin, EMM Tovar, DA Fitzpatrick, DG Higgins… - Molecular microbiology, 2011