EphA receptors regulate growth cone dynamics through the novel guanine nucleotide exchange factor ephexin

Article Abstract:

Research has been conducted on the Eph receptors transducing repulsive short-range signals for axon guidance via actin dynamics modulation within growth cones. The cloning and characterization of the Eph receptor-interacting protein ephexin have been carried out and the results indicate the creation of the molecular link between Eph receptors and the actin cytoskeleton providing a localized regulation of the growth cone motility.

author: Lin, Michael Z., Greenberg, Michael E., Debant, Anne, Shamah, Steven M., Hu, Linda, Goldberg, Jeffrey L., Estrach, Soline, Sahin, Mustafa, Bazalakova, Mihaela, Neve, Rachel L., Corfas, Gabriel
United States, France, Genetic aspects, Proteins, Cloning, Actin

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA

Structural basis for guanine nucleotide exchange on Ran by the regulator of chromosome condensation (RCC1)

Article Abstract:

Research has been conducted on the regulator of chromosome condensation (RCC1), a guanine nucleotide exchange factor for the nuclear binding protein Ran. The crystal structure of the Ran.RCC1 complex has been examined in the absence of the nucleotide and the results indicate that the nucleoside binding site's phosphate binding region is perturbed marginally due to the presence of the polyvalent anion in the P loop.

author: Wittinghofer, Alfred, Kuhlmann, Jurgen, Renault, Louis (French automobile designer), Henkel, Andreas
Germany, Carrier proteins, Transport proteins, Phosphates, Chromosomes, Anions

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA

Akt promotes cell survival by phosphorylating and inhibiting a forkhead transcription factor

Article Abstract:

Previous studies have established that the serine/threonine kinase Akt has the capacity to inactivate the apoptotic process. Aside from this, a recent study found that Akt is also involved with the regulation of FKHRL1 which is a member of the Forkhead family of transcription factors. Serine/threonine kinase Akt is observed to phosphorylate FKHRL1 to bind it with 14-3-3 proteins, thus, keep it within the cytoplasm.

author: Lin, Michael Z., Greenberg, Michael E., Anderson, Michael J., Arden, Karen C., Blenis, John, Bonni, Azad, Brunet, Anne, Zigmond, Michael J., Juo, Peter, Hu, Linda S.
Research, Cell death, Cellular control mechanisms, Cell regulation, Protein kinases, Phosphorylation

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


subjects list: Statistical Data Included, Analysis, Physiological aspects, Cell research, Cytological research, Guanine, Nucleotides
This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.