Results 151 to 160 of about 117,673 (373)
, 2002 In most aerobic organisms hemoperoxidases play a major role in H(2)O(2)-detoxification, but trypanosomatids have been reported to lack this activity.
Kelly, John M +3 more
core +2 more sources
Making Two out of One: Kinesin Motors Driving Plant Cell Division
Cytoskeleton, EarlyView.ABSTRACT The Kinesin superfamily of microtubule dependent motors is present in all eukaryotes. Not all of the subfamilies are represented in all kingdoms, and the ones that are do not always show conserved functions. Tight control of the cytoskeleton is essential for proper progression and completion of mitosis and cytokinesis, and key functions are ...
Choy Kriechbaum, Sabine Müller
wiley +1 more source
Mitotic noncoding RNA processing promotes kinetochore and spindle assembly in Xenopus
Journal of Cell Biology, 2016 Grenfell et al. show that transcription and RNA processing occur in metaphase-arrested egg extracts and that noncoding RNA biogenesis is important for centromere, kinetochore, and mitotic spindle assembly.
Andrew W. Grenfell +2 more
semanticscholar +1 more source
Cytoskeleton, EarlyView.ABSTRACT Pollen is a male gametophyte of angiosperms. Following meiosis, the microspore undergoes an asymmetric division called pollen mitosis I (PMI), which produces two cells of different sizes: a large vegetative cell and a small generative cell. Polarized nuclear migration and positioning during PMI are important for successful pollen development ...
Yoko Mizuta +5 more
wiley +1 more source
Direct observation of microtubule dynamics at kinetochores in Xenopus extract spindles [PDF]
, 2003 Paul S. Maddox +4 more
openalex +1 more source
Cytoskeleton, EarlyView.ABSTRACT Post‐translational modifications (PTMs) to tubulin subunits in microtubule filaments are thought to comprise a component of the tubulin code that specifies microtubule functions in cell physiology and animal development. Acetylation of Lysine‐40 (K40) on α‐tubulin (αTub‐K40ac) and glutamylation of both α‐ and β‐tubulin are two tubulin PTMs of ...
Lynne Blasius +6 more
wiley +1 more source
The Ndc80 complex bridges two Dam1 complex rings
eLife, 2017 Strong kinetochore-microtubule attachments are essential for faithful segregation of sister chromatids during mitosis. The Dam1 and Ndc80 complexes are the main microtubule binding components of the Saccharomyces cerevisiae kinetochore.
Jae ook Kim +8 more
doaj +1 more source
Mechanical stability of bipolar spindle assembly
, 2016 Assembly and stability of mitotic spindle is governed by the interplay of various intra-cellular forces, e.g. the forces generated by motor proteins by sliding overlapping anti-parallel microtubules (MTs) polymerized from the opposite centrosomes, the ...
Malgaretti, Paolo, Muhuri, Sudipto
core +1 more source
Discovery of an Atypical Arp2/3 Complex in Malaria Parasites Sheds New Light on Nuclear Actin
Cytoskeleton, EarlyView.ABSTRACT The Arp2/3 complex is a key actin nucleator essential for cytoskeletal dynamics in eukaryotes. Previously believed absent in apicomplexan parasites, we recently identified an atypical Arp2/3 complex in malaria parasites consisting of five divergent subunits and a putative kinetochore‐associated factor.
Franziska Hentzschel +2 more
wiley +1 more source
Cell Reports, 2015 Chromosome bi-orientation occurs after conversion of initial lateral attachments between kinetochores and spindle microtubules into stable end-on attachments near the cell equator. After bi-orientation, chromosomes experience tension from spindle forces,
Danica Drpic +4 more
doaj +1 more source