The transcriptional factor YB-1 positively regulates Hsc70 transcription in Crassostrea hongkongensis.

Abstract:

:A Y-box binding protein ChYB-1 was discovered as a ChHsc70 promoter-associated protein in Crassostrea hongkongensis by DNA-affinity purification and mass spectrometry analysis. The overexpression of ChYB-1 in heterologous HEK293T cells led to clear enhancement of ChHsc70 promoter expression, while ChYB-1 depletion correlated with significant reduction of ChHsc70 transcription in the hemocytes of C. hongkongensis. Quantitative Real-time PCR analysis revealed that both ChHsc70 and ChYB-1 were transcriptionally responsive to external chemical or physical stressors. This indicates a plausible correlation between ChHsc70 and ChYB-1 in the genetic regulatory pathway triggered by external stresses. This study presents the first evidence of positive regulator for Hsc70 transcription and contributes to a better understanding of the regulatory mechanisms governing Hsc70 expression.

authors

Liu H,Xu D,Cui M,Hou T,Zhang Q

doi

10.1016/j.bbrc.2017.12.110

subject

Has Abstract

pub_date

2018-01-22 00:00:00

pages

2404-2409

issue

4

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(17)32510-X

journal_volume

495

pub_type

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