Linked Life Data

2903459

Source:http://linkedlifedata.com/resource/pubmed/id/2903459

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1988-11-30
pubmed:abstractText
The longest open reading frames (ORFs) of three different cDNAs ([10, 12, 18, 26], and this report) contain the exact 42 amino acid (aa) sequence of the beta-amyloid peptide (BAP) which is selectively deposited in Alzheimer's diseased (AD) brains. Each of the three cDNAs for the putative amyloid peptide precursor (APP) has been cloned from a different cell type. Using an HL 60 library, we have cloned two of these three APP cDNAs from a single cell type. The sequences of the HL 60 cDNAs are identical to the APP 751 and to the APP 770 forms of APP cDNAs. Northern blots show that oligonucleotide probes drawn from unique regions of the APP 751 and APP 770 cDNAs both hybridize to 4.0 Kilobase (Kb) and to 1.6 Kb APP RNAs from HL 60 cells. In human adult brain, an oligonucleotide probe drawn from the unique region of the APP 751 cDNA hybridizes to a 3.5 Kb APP RNA. However, a DNA probe drawn from the BAP region, which is common to the 695, 751, and 770 forms of APP cDNAs, hybridizes to 3.5, 3.2 and 1.6 Kb APP RNAs. Taken together, these results show that at least two forms of APP RNAs can exist within a single cell type and that the diversity of possible APP RNAs and complexity of their expression may have been underestimated. Thus, in addition to identifying the cells which produce BAP, a new challenge consists of determining which form of forms of APP RNAs and hence APP proteins are associated with BAP deposition in AD and Down syndrome (DS).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0197-4580
pubmed:author
pubmed:issnType
Print
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
333-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
Multiple forms of beta-amyloid peptide precursor RNAs in a single cell type.
pubmed:affiliation
Central Nervous System Biological Research Department, Lederle Laboratories, American Cyanamid Company, Pearl River, NY 10965.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't