TY  - JOUR
A1  - Fritsch, Jürgen
A1  - Groß, Werner
T1  - Studies on the transport of anions and zwitterions of acidic amino acids in Streptomyces hydrogenans
T2  - Zeitschrift für Naturforschung, C
N2  - n Streptomyces hydrogenans, acidic amino acfds are taken up either as anions by a specific transport system or as zwitterions via a nonspecific one. Variations in the zwitterion concentration caused by changes in pH influence the uptake and exchange diffusion by the nonspecific system. Differences in pH-optima for ʟ-glutamate and ʟ-aspartate transport are due to the different pK2-­values of these amino acids. The anion transport by the specific system is accompanied by a short hyperpolarization of the membrane potential followed by a secondary influx of potassium ions into the cells.
KW  - Acidic Amino Acids
KW  - Multiple Transport Systems
KW  - Anion and Zwitterion Transport
KW  - Streptomyces hydrogenans
Y1  - 2014
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/81688
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-816886
SN  - 0939-5075
SN  - 1865-7125
VL  - 38.1983
IS  - 7-8
SP  - 617
EP  - 620
PB  - Verlag der Zeitschrift für Naturforschung
CY  - Tübingen
ER  -