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- Buche, A.; Ramirez, J. M.; Picorel, R.
- European journal of biochemistry 2000 v.267 no.11 pp. 3235-3243
- histidine, etc ; Ectothiorhodospira; absorption; bacteria; high performance liquid chromatography; pH; spectral analysis; titration; urea; Show all 9 Subjects
- ... The aim of this study was to investigate the spectral modifications of the LHII antenna complex from the purple bacterium Ectothiorhodospira sp. upon acid pH titration both in the presence and absence of urea. A blue shift specifically and reversibly affected the B850 band around pHâ5.5â6.0 suggesting that a histidine residue most probably participated in the in vivo absorption red shifting me ...