title: Differential expression of two barley SNF1-related protein kinase genes.
abstract: We have amplified and cloned DNA sequences derived from a gene encoding a SNF1 (sucrose-non-fermenting 1)-related protein kinase which differs from that previously reported from barley. Northern blot and polymerase chain reaction (PCR) analysis of RNA populations, using specific probes and oligonucleotide primers, indicated that the two SNF1-related genes are differentially regulated. One is expressed in all tissues, whereas the other is expressed at high levels in the seed endosperm and aleurone, but at levels undetectable by northern blot analysis in other tissues. Comparisons with other plant SNF1-related protein kinase genes suggest that the form which is expressed at greatly enhanced levels in the seed is less similar to the other plant homologues which have been reported and may be unique to cereals.
authors.affiliation: Long Ashton Research Station, Department of Agricultural Sciences, University of Bristol, UK.
authors.forename: U
authors.initials: U
authors.lastname: Hannappel
authors.forename: J
authors.initials: J
authors.lastname: Vicente-Carbajosa
authors.forename: J H
authors.initials: JH
authors.lastname: Barker
authors.forename: P R
authors.initials: PR
authors.lastname: Shewry
authors.forename: N G
authors.initials: NG
authors.lastname: Halford
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D018744:DNA, Plant; D015971:Gene Expression Regulation, Enzymologic; D018506:Gene Expression Regulation, Plant; D001467:Hordeum / Q000201:enzymology / Q000235:genetics*; D008969:Molecular Sequence Data; D010940:Plant Proteins / Q000235:genetics*; D017346:Protein Serine-Threonine Kinases / Q000235:genetics*; D017386:Sequence Homology, Amino Acid
chemical_list: D018744:DNA, Plant; D010940:Plant Proteins; C071570:SNF1-related protein kinases; D017346:Protein Serine-Threonine Kinases