Characterization of a Panel of Constitutive Promoters from Lactococcus cremoris for Fine-Tuning Gene Expression.
ACS Synth Biol
; 13(4): 1365-1372, 2024 04 19.
Article
in En
| MEDLINE
| ID: mdl-38518262
ABSTRACT
Lactococcus cremoris (homotypic synonym Lactococcus lactis) is receiving increasing attention as a prominent vehicle for the delivery of live vaccines. This can hardly be achieved without developing tools for the genetic manipulation of L. cremoris, and the paucity of studies on L. cremoris endogenous promoters has attracted our attention. Here, we report the discovery and characterization of 29 candidate promoters identified from L. cremoris subsp. cremoris NZ9000 by RNA sequencing analysis. Furthermore, 18 possible constitutive promoters were obtained by RT-qPCR screening from these 29 candidate promoters. Then, these 18 promoters were cloned and characterized by a reporter gene, gusA, encoding ß-glucuronidase. Eventually, eight endogenous constitutive promoters of L. cremoris were obtained, which can be applied to genetic manipulation of lactic acid bacteria.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Lactococcus
/
Lactococcus lactis
Language:
En
Journal:
ACS Synth Biol
Year:
2024
Document type:
Article
Affiliation country:
China
Country of publication:
Estados Unidos