Isolation and nucleotide sequence of a sesquiterpene cyclase gene from the trichothecene-producing fungus Fusarium sporotrichioides

Gene ◽  
1989 ◽  
Vol 79 (1) ◽  
pp. 131-138 ◽  
Author(s):  
Thomas M. Hohn ◽  
Phillip D. Beremand
1998 ◽  
Vol 64 (1) ◽  
pp. 221-225 ◽  
Author(s):  
Nancy J. Alexander ◽  
Thomas M. Hohn ◽  
Susan P. McCormick

ABSTRACT Several genes in the trichothecene biosynthetic pathway ofFusarium sporotrichioides have been shown to reside in a gene cluster. Sequence analysis of a cloned DNA fragment located 3.8 kb downstream from TRI5 has led to the identification of the TRI11 gene. The nucleotide sequence ofTRI11 predicts a polypeptide of 492 residues (M r = 55,579) with significant similarity to members of the cytochrome P-450 superfamily. TRI11 is most similar to several fungal cytochromes P-450 (23 to 27% identity) but is sufficiently distinct to define a new cytochrome P-450 gene family, designated CYP65A1. Disruption of TRI11 results in an altered trichothecene production phenotype characterized by the accumulation of isotrichodermin, a trichothecene pathway intermediate. The evidence suggests that TRI11 encodes a C-15 hydroxylase involved in trichothecene biosynthesis.


1998 ◽  
Vol 25 (2‐3) ◽  
pp. 83-265 ◽  
Author(s):  
J. L. Bidwell ◽  
N. A. P. Wood ◽  
H. R. Morse ◽  
O. O. Olomolaiye ◽  
G. J. Laundy

2004 ◽  
Vol 216 (03) ◽  
Author(s):  
C Gall ◽  
T Langer ◽  
M Metzler ◽  
S Viehmann ◽  
J Harbott ◽  
...  

2020 ◽  
pp. 37-40

Genetic variety examination has demonstrated fundamental to the understanding of the epidemiological and developmental history of Papillomavirus (HPV), for the development of accurate diagnostic tests and for efficient vaccine design. The HPV nucleotide diversity has been investigated widely among high-risk HPV types. To make the nucleotide sequence of HPV and do the virus database in Thi-Qar province, and compare sequences of our isolates with previously described isolates from around the world and then draw its phylogenetic tree, this study done. A total of 6 breast formalin-fixed paraffin-embedded (FFPE) of the female patients were included in the study, divided as 4 FFPE malignant tumor and 2 FFPE of benign tumor. The PCR technique was implemented to detect the presence of HPV in breast tissue, and the real-time PCR used to determinant HPV genotypes, then determined a complete nucleotide sequence of HPV of L1 capsid gene, and draw its phylogenetic tree. The nucleotide sequencing finding detects a number of substitution mutation (SNPs) in (L1) gene, which have not been designated before, were identified once in this study population, and revealed that the HPV16 strains have the evolutionary relationship with the South African race, while, the HPV33 and HPV6 showing the evolutionary association with the North American and East Asian race, respectively.


2014 ◽  
Vol 2 (42) ◽  
pp. 291-291
Author(s):  
Z.B. Tekebayeva ◽  
A.B. Shevtsov ◽  
X.K. Rakhymzhan ◽  
K.A. Aituganov ◽  
G.A. Babayeva ◽  
...  

2019 ◽  
Vol 98 (6) ◽  
pp. 255-259
Author(s):  
T.V. Kozhanova ◽  
◽  
S.S. Zhilina ◽  
T.I. Mescheryakova ◽  
E.S. Bolshakova ◽  
...  

GYNECOLOGY ◽  
2018 ◽  
Vol 20 (4) ◽  
pp. 9-11 ◽  
Author(s):  
V V Sobolev ◽  
Z A Nevozinskaya ◽  
A G Soboleva ◽  
I M Korsunskaya

The review is devoted to genetic research in cancer of the vulva. In genetic changes, the mutation irreversibly changes the nucleotide sequence of DNA, or the number of copies of chromosomes changes per cell. In epigenetics, the nucleotide sequence remains unchanged, but gene activity is regulated by methylation of DNA or modification of histones. Most of the studies analyzed are devoted to the study of mutations in the TP53 gene. Many studies indicate that somatic mutations are more common in HPV-negative than in HPV-positive patients. Epigenetic studies in the main devoted to hypermethylation. The gene CDKN2A is most often studied in epigenetic terms. For most of the studied genes, hypermethylation occurs more often in squamous cell carcinoma of the vulva than in the precursors.


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