1987
DOI: 10.1007/bf01869489
|View full text |Cite
|
Sign up to set email alerts
|

Kinetic study on the equilibrium between membrane-bound and free photoreceptor G-protein

Abstract: Formation of the complex between photoreceptor G-protein (G) and photoactivated rhodopsin (RM) leads to a change in the light scattering of the disk membranes (binding signal or signal P). The signal measured on isolated disks (so-called PD signal) is exactly stoichiometric in its final level to bound G-protein but its kinetics are much slower than the RMG binding reaction. In this study on isolated disks, recombined with G-protein, we analyzed the PD-signal level and kinetics as a function of flash intensity … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

11
45
0

Year Published

1988
1988
2017
2017

Publication Types

Select...
5
3

Relationship

0
8

Authors

Journals

citations
Cited by 47 publications
(56 citation statements)
references
References 23 publications
11
45
0
Order By: Relevance
“…2B, trace a). Accordingly, dissociation of G t mb from the membrane upon activation is seen as decrease of LS ("dissociation signal" (20,36); Fig. 2B, trace b).…”
Section: Quantification Of Membrane-bound Transducin-mentioning
confidence: 95%
See 2 more Smart Citations
“…2B, trace a). Accordingly, dissociation of G t mb from the membrane upon activation is seen as decrease of LS ("dissociation signal" (20,36); Fig. 2B, trace b).…”
Section: Quantification Of Membrane-bound Transducin-mentioning
confidence: 95%
“…Notably, binding signals are generally slow as compared with dissociation signals. Previous work resolved this apparent conflict by the finding that, although binding of G t mb to R* is fast, interaction of G t sol with the membrane is slow (36). Consequently, the activation rate of G t sol is limited by its membrane binding, thereby leading to artificially slowed activation rates when total active G t * formation is assayed under conditions where a significant fraction of G t GDP is solubilized.…”
Section: Quantification Of Membrane-bound Transducin-mentioning
confidence: 99%
See 1 more Smart Citation
“…The changes in a dissociation signal were recorded as before (25,26). Measuring conditions were 3 M rhodopsin (WM), 0.4 M Gt, 500 M GTP, 20°C; 0.9% of rhodopsin was flash-activated.…”
Section: Methodsmentioning
confidence: 99%
“…In the present study, the binding signals are used as a tool to determine the state of membrane binding (prior to the flash) of a protein. The shift of protein mass from solution to the membrane becomes the larger the less of the protein that is bound to the membrane before receptor activation (30,42). No binding signal will be seen when the protein is completely bound to the membrane.…”
Section: Light-induced Interaction Of Arrestin and Its Variants Withmentioning
confidence: 99%