Regulatory Circuits Controlling Photosynthesis Gene Expression

Regulatory Circuits Controlling Photosynthesis Gene Expression

Carl E. Bauer and Terry H. Bird reduced (and protonated) it migrates to the cytochrome bc1 complex. The cytochrome bc1 complex then cycles Department of Biology Indiana University electrons from the quinone back to the reaction center via cytochrome c2 (or cytochrome cy). The bc1 complex Bloomington, Indiana 47405 also functions to translocate protons across the cytoplasmic membrane which creat...

Interacting regulatory circuits involved in orderly control of photosynthesis gene expression in Rhodobacter sphaeroides 2.4.1.

FnrL, the homolog of the global anaerobic regulator Fnr, is required for the induction of the photosynthetic apparatus in Rhodobacter sphaeroides 2.4.1. Thus, the precise role of FnrL in photosynthesis (PS) gene expression and its interaction(s) with other regulators of PS gene expression are of considerable importance to our understanding of the regulatory circuitry governing spectral complex ...

Key Regulatory Gene Expression in Erythroleukemia Differentiation

The characteristics of cellular and molecular mechanisms associated with cell proliferation and differentiation is important to understand malignancy. In this report we characterise a leukemic model, D5A1, to study the action of differentiation agent, cellular events and gene expression of the selected transcription factors. Cells induced with 4 mM hexamethylene bisacetamide (HMBA) caused signs...

Regulatory networks controlling Vibrio cholerae virulence gene expression.

Regulated expression of a highly conserved regulatory gene cluster is necessary for controlling photosynthesis gene expression in response to anaerobiosis in Rhodobacter capsulatus.

We utilized primer extension analysis to demonstrate that the divergently transcribed regB and senC-regA-hvrA transcripts contain stable 5' ends 43 nucleotides apart within the regB-senC intergenic region. DNA sequence analysis indicates that this region contains two divergent promoters with overlapping sigma70 type -35 and -10 promoter recognition sequences. In vivo analysis of expression patt...