Authors:	Thurotte, Adrien Seidel, Tobias Jilly, Ruven Kahmann, Uwe Schneider, Dirk
Title:	DnaK3 is involved in biogenesis and/or maintenance of thylakoid membrane protein complexes in the cyanobacterium Synechocystis sp. PCC 6803
Online publication date:	3-Jun-2020
Year of first publication:	2020
Language:	english
Abstract:	DnaK3, a highly conserved cyanobacterial chaperone of the Hsp70 family, binds to cyanobacterial thylakoid membranes, and an involvement of dnak3 in the biogenesis of thylakoid membranes has been suggested. as shown here, light triggers synthesis of dnak3 in the cyanobacterium synechocystis sp. pcc 6803, which links dnak3 to the biogenesis of thylakoid membranes and to photosynthetic processes. in a dnak3 depleted strain, the photosystem content is reduced and the photosystem ii activity is impaired, whereas photosystem i is regular active. an impact of dnak3 on the activity of other thylakoid membrane complexes involved in electron transfer is indicated. in conclusion, dnak3 is a versatile chaperone required for biogenesis and/or maintenance of thylakoid membrane-localized protein complexes involved in electron transfer reactions. as mentioned above, hsp70 proteins are involved in photoprotection and repair of ps ii in chloroplasts.
DDC:	570 Biowissenschaften 570 Life sciences
Institution:	Johannes Gutenberg-Universität Mainz
Department:	FB 09 Chemie, Pharmazie u. Geowissensch.
Place:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-406
URN:	urn:nbn:de:hebis:77-publ-598618
Version:	Published version
Publication type:	Zeitschriftenaufsatz
License:	CC BY
Information on rights of use:	https://creativecommons.org/licenses/by/4.0/
Journal:	Life 10 5
Pages or article number:	Art. 55
Publisher:	MDPI
Publisher place:	Basel
Issue date:	2020
ISSN:	2075-1729
Publisher URL:	http://dx.doi.org/10.3390/life10050055
Publisher DOI:	10.3390/life10050055
Appears in collections:	JGU-Publikationen