Matches in SemOpenAlex for { <https://semopenalex.org/work/W2890710892> ?p ?o ?g. }
- W2890710892 abstract "Abstract The full length of Culex quiquefasciatus early trypsin has been cloned and sequenced and a three‐dimensional (3D) model of the enzyme was built showing that the enzyme has the canonical trypsin’s active pocket containing H78, D123, S129, and D128. The biosynthesis of juvenile hormone (JH) III by the corpora allata (CA) in female Cx. quiquefasciatus is sugar‐dependent. Females that were maintained on water after emergence synthesize very little JH III, JH III bisepoxide, and methyl farnesoate (MF) (3.8, 1.1, and 0.8 fmol/4 hr/CA, respectively). One hour after sugar feeding, the synthesis of JH III and JH III bisepoxide reached a maximum (11.3 and 5.9 fmol/4 hr/CA, respectively) whereas MF biosynthesis reached a maximum at 24 hr (5.2 fmol/4 hr/CA). The early trypsin is transcribed with a short intron (51 nt) is spliced when JH III biosynthesis is high in sugar fed and at 1 hr after the blood meal (22 and 15 fmol/4 hr/CA, respectively). We investigated the transcriptional and posttranscriptional regulation of the early trypsin gene showing that JH III concentrations influence splicing. In the absence JH III the unspliced transcript is linked by a phosphoamide bond at the 5′‐end to RNA ribonuleoprotein (RNP). The biosynthesis of the early trypsin was followed in ligated abdomens (without CA) of newly emerged females that fed blood by enema. Our results show that the early trypsin biosynthesis depends on sugar and blood feeding, whereas the late trypsin biosynthesis does not depend on sugar feeding, or JH III biosynthesis. Downregulating the early trypsin transcript does not affect the late trypsin." @default.
- W2890710892 created "2018-09-27" @default.
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- W2890710892 date "2018-09-03" @default.
- W2890710892 modified "2023-10-12" @default.
- W2890710892 title "Juvenile hormone affects the splicing of<i>Culex quinquefasciatus</i>early trypsin messenger RNA" @default.
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- W2890710892 doi "https://doi.org/10.1002/arch.21506" @default.
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