Mycolicibacterium smegmatis possesses operational agmatinase but contains no detectable polyamines.
Int J Mycobacteriol
; 9(2): 138-143, 2020.
Article
in En
| MEDLINE
| ID: mdl-32474534
Background: Polyamines are widespread intracellular molecules able to influence antibiotic susceptibility, but almost nothing is known on their occurrence and physiological role in mycobacteria. Methods: here, we analyzed transcriptomic, proteomic and biochemical data and obtained the first evidence for the post-transcriptional expression of some genes attributed to polyamine metabolism and polyamine transport in Mycolicibacterium smegmatis (basionym Mycobacterium smegmatis). Results: in our experiments, exponentially growing cells demonstrated transcription of 21 polyamine-associated genes and possessed 7 enzymes of polyamine metabolism and 2 polyamine transport proteins. Conclusion: Mycolicibacterium smegmatis putrescine synthesizing enzyme agmatinase SpeB was originally shown to catalyze agmatine conversion to putrescine in vitro. Nevertheless, we have not found any polyamines in mycobacterial cells.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Polyamines
/
Ureohydrolases
/
Mycobacterium smegmatis
Language:
En
Journal:
Int J Mycobacteriol
Year:
2020
Document type:
Article