Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1997-5-19
pubmed:databankReference
pubmed:abstractText
We have sequenced and recombinantly expressed as a fusion protein an expressed sequence tag clone (GB Z25963) from Arabidopsis thaliana that represents the plant homologue of human inositol 1,3,4 trisphosphate 5/6-kinase. The 1365 base pair clone has an open reading frame of 960 base pairs that predicts a protein product of 36.2 kDa, with a pI of 6.1. There is no polyadenylation signal or poly (A) tail, suggesting that additional 3' sequence remains to be identified. The amino acid sequence is 30% identical to the human protein. There are several short regions with particularly high degrees of identity between the human and Arabidopsis protein sequences, and these may be useful in identifying the active site of the enzyme. The expressed sequence tag was expressed as a fusion protein in Escherichia coli, with a carboxyl terminal deletion removing one region of high identity between the two proteins. The protein product of this construct was found to have inositol 1,3,4-trisphosphate 5/6-kinase activity. The Arabidopsis enzyme produced both inositol 1,3,4,6-tetrakisphosphate and inositol 1,3,4,5-tetrakisphosphate as products in a ratio of 1:3, in contrast with the human enzyme which gives a product ratio of 3:1.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
27
pubmed:volume
232
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
678-81
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Characterization of a cDNA encoding Arabidopsis thaliana inositol 1,3,4-trisphosphate 5/6-kinase.
pubmed:affiliation
Division of Hematology-Oncology, Washington University School of Medicine, St. Louis, Missouri 63110, USA.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S.