rdf:type |
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lifeskim:mentions |
|
pubmed:issue |
1
|
pubmed:dateCreated |
1992-1-2
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pubmed:databankReference |
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pubmed:abstractText |
We have identified cDNA clones encoding branching enzyme-I (BE-I) from a maize kernel cDNA library. The combined nucleotide sequence of the cDNAs indicates that maize BE-I is initially synthesized as a precursor protein with a putative 64-residue transit peptide at the amino terminus, and that the mature enzyme contains 759 amino acid residues with a calculated molecular mass of 86,236 Da. The four regions, which constitute the catalytic site of amylolytic enzymes, are conserved in the sequences of BE-I and bacterial branching enzymes. This result demonstrates that branching enzyme belongs to a family of the amylolytic enzymes. The BE-I gene is highly expressed in the early stages of kernel development, and the level of the message concentration decreases slowly as kernel maturation proceeds.
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pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
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pubmed:chemical |
|
pubmed:status |
MEDLINE
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pubmed:month |
Nov
|
pubmed:issn |
0006-291X
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pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
27
|
pubmed:volume |
181
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
87-94
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:1720313-1,4-alpha-Glucan Branching Enzyme,
pubmed-meshheading:1720313-Amino Acid Sequence,
pubmed-meshheading:1720313-Bacteria,
pubmed-meshheading:1720313-Base Sequence,
pubmed-meshheading:1720313-Binding Sites,
pubmed-meshheading:1720313-Cloning, Molecular,
pubmed-meshheading:1720313-DNA,
pubmed-meshheading:1720313-Enzyme Precursors,
pubmed-meshheading:1720313-Gene Library,
pubmed-meshheading:1720313-Humans,
pubmed-meshheading:1720313-Molecular Sequence Data,
pubmed-meshheading:1720313-Multigene Family,
pubmed-meshheading:1720313-RNA,
pubmed-meshheading:1720313-Restriction Mapping,
pubmed-meshheading:1720313-Sequence Homology, Nucleic Acid,
pubmed-meshheading:1720313-Zea mays,
pubmed-meshheading:1720313-alpha-Amylases
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pubmed:year |
1991
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pubmed:articleTitle |
Sequence conservation of the catalytic regions of amylolytic enzymes in maize branching enzyme-I.
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pubmed:affiliation |
Institute of Applied Biochemistry, University of Tsukuba, Ibaraki, Japan.
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pubmed:publicationType |
Journal Article,
Comparative Study
|