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Polymorphism of Polymeric Amino Acid Regions in Fungal Proteins and Correlation with Altered Echinocandin and Azole Susceptibility.

ABSTRACT: Polymorphism of polymeric amino acid (polyX) regions within fungal proteins represents a potential mechanism for rapid genotypic adaptation to environmental pressures, including antifungal exposure. Polyglutamine (polyQ) was the most abundant repeat in the proteomes of 8 diverse fungal species and was preferentially found in regulatory proteins. In Candida glabrata, polyX polymorphisms were characterized in 36 proteins implicated in azole or echinocandin susceptibility. General transcriptional repressor Tup1A exhibited Q44/Q45 polymorphism, and Hog1 signaling component Ssk2 exhibited N44/N45 polymorphism in phylogenetically matched echinocandin- and azole-susceptible/resistant strains, respectively.

SUBMITTER: Challa K

PROVIDER: S-EPMC6256777 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature

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Polymorphism of Polymeric Amino Acid Regions in Fungal Proteins and Correlation with Altered Echinocandin and Azole Susceptibility.

Challa Krishna K Edlind Tom T Katiyar Santosh S

Antimicrobial agents and chemotherapy 20181126 12

Polymorphism of polymeric amino acid (polyX) regions within fungal proteins represents a potential mechanism for rapid genotypic adaptation to environmental pressures, including antifungal exposure. Polyglutamine (polyQ) was the most abundant repeat in the proteomes of 8 diverse fungal species and was preferentially found in regulatory proteins. In <i>Candida glabrata</i>, polyX polymorphisms were characterized in 36 proteins implicated in azole or echinocandin susceptibility. General transcript ...[more]

PMID: 30297363

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Project description:To investigate the association between the susceptibility to cervical cancer and the single nucleotide polymorphisms of 5 tumor necrosis factor-? promoter genes (rs361525, rs1800629, rs1800750, rs1799964, and rs673) in Chinese women. A total of 946 peripheral blood samples were collected from women of Han Ethnicity in Shandong province. Of them, 452 were diagnosed with cervical squamous cell carcinomas. The study also included a control group of 494 healthy women. The targeted single nucleotide polymorphisms were analyzed by TaqMan probe method. (1) The rate of high-risk subtype human papillomavirus infection in exfoliated cervical epithelial cells was significantly higher in patients with cervical cancer than the control group (91.4% vs 10.3%, P < .01). The rate of human papillomavirus infection was lower in patients with carcinoma in situ than those with invasive carcinoma (77.9% vs 95.4%, P < .01). (2) There was a significant difference for rs361525 genotype (CC/CT/TT) between the control, carcinoma in situ, and invasive carcinoma groups ( P < .001). Both rs1800629 and rs1799964 genotypes (both GG/GA/AA) were also different between these groups ( P < .001 and P < .001). (3) The allele frequencies of rs361525, rs1800629, and rs1799964 were significantly correlated with the diagnosis of cervical cancer. The frequency of T allele in rs361525 was significantly higher for cervical cancer group (10.8%) than control group (3.8%; odds ratio = 3.04, 95% confidence interval = 1.76-5.25, P < .01). The frequency of A allele in rs1800629 was significantly higher for cervical cancer (29.9%) than control group (14.2%; odds ratio = 2.58, 95% confidence interval = 1.87-3.56, P < .01). The frequency of A allele in rs1799964 was also higher for cervical cancer group (38.3%) than control group (16.4%; odds ratio = 1.43, 95% confidence interval = 1.07-1.91, P < .05). The rs361525, rs1800629, and rs17999645 were significantly correlated with the diagnosis of cervical cancer.

Dataset Information

Polymorphism of Polymeric Amino Acid Regions in Fungal Proteins and Correlation with Altered Echinocandin and Azole Susceptibility.

Publications

Polymorphism of Polymeric Amino Acid Regions in Fungal Proteins and Correlation with Altered Echinocandin and Azole Susceptibility.

Similar Datasets

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