Source:http://linkedlifedata.com/resource/pubmed/id/10998244
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
36
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pubmed:dateCreated |
2000-10-13
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pubmed:abstractText |
A new gene encoding a novel GATA factor, ASD4, of Neurospora crassa was isolated and demonstrated to possess one intron and to specify an open reading frame encoding a protein with 427 amino acid residues. The ASD4 protein contains a single GATA-type zinc finger and a putative coiled-coil domain. Unlike related proteins, DAL80 in yeast and NREB in Penicillium, ASD4 does not appear to be involved in regulation of nitrogen metabolism. An Asd-4 null mutant obtained by the rip procedure did not show any effect upon nitrogen control, but instead resulted in severe defects in ascus and ascospore genesis. The Asd-4 rip mutant is dominant to Asd-4+. A cross of the Asd-4 mutant with wild-type resulted in fruiting bodies that appeared to be normal macroscopically but which were complete devoid of asci and ascospores. Introduction of the Asd-4+ gene into the Asd-4 rip mutant corrected the defect in ascus and ascospore development in crosses with wild-type. Mobility shift assays demonstrated that ASD4 acts as a sequence-specific DNA binding protein and recognizes DNA fragments that contain GATA core elements. Gel filtration and cross-linking experiments revealed that the ASD4 protein exists as a tetramer in solution. These results suggest that the ASD4 protein functions positively as a transcriptional regulator of sexual development in Neurospora.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Cysteine,
http://linkedlifedata.com/resource/pubmed/chemical/DNA-Binding Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Fungal Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Nitrogen,
http://linkedlifedata.com/resource/pubmed/chemical/Solutions
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0006-2960
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
12
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pubmed:volume |
39
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
11065-73
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:10998244-Blotting, Northern,
pubmed-meshheading:10998244-Cysteine,
pubmed-meshheading:10998244-DNA-Binding Proteins,
pubmed-meshheading:10998244-Fungal Proteins,
pubmed-meshheading:10998244-Mutagenesis,
pubmed-meshheading:10998244-Neurospora crassa,
pubmed-meshheading:10998244-Nitrogen,
pubmed-meshheading:10998244-Protein Structure, Tertiary,
pubmed-meshheading:10998244-Repetitive Sequences, Amino Acid,
pubmed-meshheading:10998244-Solutions,
pubmed-meshheading:10998244-Spores, Fungal,
pubmed-meshheading:10998244-Transformation, Genetic,
pubmed-meshheading:10998244-Zinc Fingers
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pubmed:year |
2000
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pubmed:articleTitle |
ASD4, a new GATA factor of Neurospora crassa, displays sequence-specific DNA binding and functions in ascus and ascospore development.
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pubmed:affiliation |
Department of Biochemistry, The Ohio State University, Columbus, Ohio 43210, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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