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Reference - PMID:6094012 - The NDA3 gene of fission yeast encodes beta-tubulin: a cold-sensitive nda3 mutation reversibly blocks spindle formation and chromosome movement in mitosis.

Reference summary

PubMed ID
PMID:6094012
Title
The NDA3 gene of fission yeast encodes beta-tubulin: a cold-sensitive nda3 mutation reversibly blocks spindle formation and chromosome movement in mitosis.
Authors
Hiraoka Y, Toda T, Yanagida M
Citation
Cell 1984 Dec;39(2 Pt 1):349-58
Publication year
1984
Abstract
The cells of a cold-sensitive mutant nda3-KM311 of the fission yeast Schizosaccharomyces pombe were arrested highly synchronously at a step similar to mitotic prophase when incubated at a restrictive temperature. DAPI staining and indirect immunofluorescence microscopy showed three condensed chromosomes but no spindle. Six minutes after the temperature shifted to a permissive one, the spindle appeared and elongated. The chromosomes were separated at a constant speed (relative velocity 1 micron/min), and the spindle disappeared after the chromosomes reached opposite ends of the cell. The NDA3 gene of S. pombe was cloned by transformation. The 2.6 kb Hind III genomic DNA that complemented the nda3 mutations had only one coding frame split with five short introns. The predicted amino acid sequence contained 448 residues, and was 75% homologous to that of chicken beta-tubulin.

Annotation

GO biological process

GO:0000022 - mitotic spindle elongation

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GO cellular component

GO:0005634 - nucleus

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GO:0005876 - spindle microtubule

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Single locus phenotype

FYPO:0001972 - abnormal cell separation after cytokinesis resulting in septated cell

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Genotypes:

FYPO:0000338 - abnormal mitotic spindle

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FYPO:0001512 - branched, elongated cell

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FYPO:0000134 - branched, elongated, multiseptate cell

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Genotypes:

FYPO:0003128 - inviable elongated mononucleate aseptate cell with cell cycle arrest in mitotic M phase

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