Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-3
pubmed:dateCreated
2006-8-28
pubmed:databankReference
pubmed:abstractText
Two novel beta-expansin genes, TaEXPB1 and TaEXPB2, were isolated from wheat microspores by suppression subtractive hybridisation. Northern blot and reverse transcription PCR analyses showed that the expression of both genes was restricted to early stages of male gametophyte development (from microspores to immature pollen). A homology search showed high similarity of the newly discovered genes to generative beta-expansins in grass pollen (group 1 pollen allergens). Southern hybridisation revealed that the isolated genes belong to a distinct group within the subfamily of beta-expansin genes in the wheat genome. A comparison of full-length cDNAs with the corresponding genomic sequences showed that there are two introns in the TaEXPB1 gene, whereas TaEXPB2 has three introns. Both genes were predicted to encode highly similar basic proteins (pI 9.0) with molecular masses of approximately 29 kDa consisting of a signal peptide, catalytic, and polysaccharide binding domains, which include conserved cysteines and tryptophans and motifs characteristic for beta-expansins.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0033-183X
pubmed:author
pubmed:issnType
Print
pubmed:volume
228
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
13-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Isolation and characterisation of two wheat beta-expansin genes expressed during male gametophyte development.
pubmed:affiliation
Plant Developmental Genetics and Biotechnology Laboratory, Max F. Perutz Laboratories, Campus Vienna Biocenter, Vienna, Austrian. Alisher.Touraev@univie.ac.at
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't