Linked Life Data

3338621

Source:http://linkedlifedata.com/resource/pubmed/id/3338621

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1988-3-8
pubmed:databankReference
pubmed:abstractText
Chorion genes in the silkmoth Bombyx mori are clustered in a small region of one chromosome. Genes are grouped within this locus according to their expression in either early, middle, or late stages of choriogenesis. The entire set of late genes and a large fraction of the middle genes have been cloned and extensively characterized. We report here the first molecular characterization of a set of early chorion genes clustered within a 22.5-kb region. Transcripts homologous to these genes appear in the very first choriogenic follicle but disappear with different kinetics. One of the three early genes, 5H4, is the first example of a chorion gene which is not a member of a multigene family, or divergently paired with another chorion gene. The other two early genes, (ErA.1 and ErB.1) are divergently paired with each other in the manner of the middle and late chorion genes. The common 5' region between ErA.1 and ErB.1 is significantly shorter and does not contain certain sequence elements shared by the highly conserved 5' regions of middle and late chorion gene pairs. This evidence taken together with the fact that 5H4 is unpaired indicates that the early genes may utilize a regulatory mechanism somewhat different from the middle and late gene families.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0012-1606
pubmed:author
pubmed:issnType
Print
pubmed:volume
125
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
423-31
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Organization and expression of three genes from the silkmoth early chorion locus.
pubmed:affiliation
Department of Biology, University of Rochester, New York 14627.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't