Linked Life Data

8049272

Source:http://linkedlifedata.com/resource/pubmed/id/8049272

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1994-9-8
pubmed:databankReference
pubmed:abstractText
A cDNA clone with an open reading frame of 831 nucleotides was isolated from a lambda ZapII-library of Arabidopsis thaliana. The nucleotide sequence of the cDNA is homologous to the APS-kinase genes from enterobacteria, diazotrophic bacteria, and yeast: Escherichia coli (cys C: 53.2%), Rhizobium meliloti (nod Q: 52.6%), and Saccharomyces cerevisiae (met 14:57.1%). The polypeptide deduced from the plant APS-kinase cDNA is comprised of 276 amino acid residues with a molecular weight of 29,790. It contains an N-terminal extension of 77 amino acids. This extension includes a putative transit peptide of 37 residues separated from the core protein by a VRACV processing site for stromal peptidase; a molecular weight of 26,050 is predicted for the processed protein. The relatedness between bacterial, fungal and plant APS-kinase polypeptides ranges from 47.5% (E. coli), 55.4% (S. cerevisiae), 52.6% (R. meliloti), and 50.3% (Azospirillum brasilense). The plant polypeptide contains eight cysteine residues; two cysteines flank a conserved purine nucleotide binding domain: GxxxxGK. Also conserved are a serine-182 as a possible phosphate transferring group and a K/LARAGxxxxFTG motif described for PAPS dependent enzymes. The identity of the gene was confirmed by analyzing the function of the gene product. The putative transit peptide was deleted by PCR and the truncated gene was expressed in a pTac1 vector system. A polypeptide of MW 25761 could be induced by IPTG. The gene product was enzymatically active as APS-kinase. It produced PAPS from APS and ATP--the absence of ATP but supplemented with thiols, the APS-kinase reacted as APS-sulphotransferase. APS-sulphotransferase is not a separate enzyme but identical with APS-kinase.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
2
pubmed:volume
1218
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
447-52
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:8049272-Amino Acid Sequence, pubmed-meshheading:8049272-Arabidopsis, pubmed-meshheading:8049272-Bacteria, pubmed-meshheading:8049272-Base Sequence, pubmed-meshheading:8049272-Cloning, Molecular, pubmed-meshheading:8049272-Conserved Sequence, pubmed-meshheading:8049272-DNA, Complementary, pubmed-meshheading:8049272-DNA Primers, pubmed-meshheading:8049272-Escherichia coli, pubmed-meshheading:8049272-Genes, Plant, pubmed-meshheading:8049272-Molecular Sequence Data, pubmed-meshheading:8049272-Open Reading Frames, pubmed-meshheading:8049272-Phosphotransferases (Alcohol Group Acceptor), pubmed-meshheading:8049272-Polymerase Chain Reaction, pubmed-meshheading:8049272-Recombinant Proteins, pubmed-meshheading:8049272-Saccharomyces cerevisiae, pubmed-meshheading:8049272-Sequence Homology, Amino Acid
pubmed:year
1994
pubmed:articleTitle
A cDNA for adenylyl sulphate (APS)-kinase from Arabidopsis thaliana.
pubmed:affiliation
Biochemistry of Plants, Faculty of Biology, Ruhr-University-Bochum, Germany.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't