Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
14
pubmed:dateCreated
1991-6-10
pubmed:abstractText
Human erythrocyte nucleoside-diphosphate kinase (NDP kinase) is a hexameric enzyme consisting of two kinds of polypeptide chains, A and B. By random association (A6, A5B...AB5, B6) these polypeptides form isoenzymes differing in their isoelectric point. Chains A and B of NDP kinase were purified by ion-exchange chromatography under denaturing conditions. Upon mixing and renaturation, the isozymic pattern of NDP kinase obtained by conventional methods was restored. Antibodies raised against purified chains showed significant cross-reactivity, both in immunoblot experiments and activity inhibition studies. Sequence determination showed that both chains consisted of 152 amino acid residues corresponding to Mr or 17,143 (chain A) and 17,294 (chain B), respectively. There was high homology between the two sequences (88% identity). The phosphorylation site on the enzyme is located at His-118. Chain A was identical with human Nm23 protein, which has been reported as a potential suppressor protein in tumor metastasis and chain B was identical with Nm23-H2 protein.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
266
pubmed:geneSymbol
Awd, NDPK A, NKPK B
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
8784-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Nucleoside diphosphate kinase from human erythrocytes. Structural characterization of the two polypeptide chains responsible for heterogeneity of the hexameric enzyme.
pubmed:affiliation
Unité de Biochimie des Régulations Cellulaires, Institut Pasteur, France.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't