Microtubule assembly: Some possible regulatory mechanisms

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Possible regulatory mechanisms in the ovarian disorders.

Long-term investigation of prevalence of antiovarian antibodies in serum of girls and adolescent women confirm their significantly higher incidence in patients with primary amenorhea (PA), oligomenorhea and secondary amenorhea (OSA). Simultaneously, in association with ovarian disorders, significantly increased levels of gonadotropins, particularly FSH, LH and their ratio (FSH/LH) declare an ac...

متن کامل

Inability to detect Chlamyodomonas microtubule assembly in vitro: possible implications to the in vivo regulation of microtubule assembly.

It has been demonstrated that the in vitro assembly of microtubules from Chlamydomonas preparations does not occur under a wide range of conditions, including those efficacious for mammalian brain tubulin. This incompetence of Chlamydomonas extracts to form microtubules is independent of the tubulin concentration, the presence of added nucleotides or an added seed, temperature, or the concentra...

متن کامل

Test of four possible mechanisms for the temporal control of spindle and cytoplasmic microtubule assembly in HeLa cells.

We have compared tubulin from exponentially growing and mitotic enriched populations of suspensioncultured HeLa cells. The proportion of the protein in the cell extract that was tubulin (4.6%) was the same in populations of both mitotic and log phase cells. The self assembly and copolymerization activity of extract tubulin were also compared for the two populations of cells. Approximately 60% o...

متن کامل

Some regulatory mechanisms of the human pulmonary vascular bed.

THERE IS still a question regarding the presence of active mechanisms of control for the pulmonary vessels in man. The controversy continues, since evidence for active vasomotion has usually been indirect. Because, in the past, it has been assumed that changes in pulmonary vascular resistance necessarily reflect changes in pulmonary vascular caliber, workers have drawn conflicting conclusions f...

متن کامل

The Kinetics of Microtubule Assembly

A model describing the nucleation and assembly of purified tubulin has been developed. The novel feature of this model is a two stage nucleation process to allow the explicit inclusion of the two-dimensional nature of the early stages of microtubule assembly. In actin assembly the small starting nucleus has only one site for subunit addition as the two-stranded helix is formed. In contrast, mic...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Supramolecular Structure

سال: 1974

ISSN: 0091-7419,1547-9366

DOI: 10.1002/jss.400020230