TY  - JOUR
A1  - Hubloher, Josephine Joy
A1  - Sande, Lisa van der
A1  - Müller, Volker
T1  - Na+ homeostasis in Acinetobacter baumannii is facilitated via the activity of the Mrp antiporter
T2  - Environmental microbiology
N2  - The human opportunistic pathogen Acinetobacter baumannii is a global threat to healthcare institutions worldwide, since it developed very efficient strategies to evade host defence and to adapt to the different environmental conditions of the host. This work focused on the importance of Na+ homeostasis in A. baumannii with regards to pathobiological aspects. In silico studies revealed a homologue of a multicomponent Na+/H+ antiporter system. Inactivation of the Mrp antiporter through deletion of the first gene (mrpA′) resulted in a mutant that was sensitive to increasing pH values. Furthermore, the strain was highly sensitive to increasing Na+ and Li+ concentrations. Increasing Na+ sensitivity is thought to be responsible for growth impairment in human fluids. Furthermore, deletion of mrpA′ is associated with energetic defects, inhibition of motility and survival under anoxic and dry conditions.
Y1  - 2022
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/79276
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-792761
SN  - 1462-2920
N1  - The authors are indebted to the Deutsche Forschungsgemeinschaft for financial support via DFG Research Unit FOR 2251.
VL  - 24
IS  - 9
SP  - 4411
EP  - 4424
PB  - Blackwell
CY  - Oxford [u.a.]
ER  -