Linked Life Data

11881808

Source:http://linkedlifedata.com/resource/pubmed/id/11881808

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2002-3-7
pubmed:databankReference
pubmed:abstractText
This paper describes cDNAs of four small-size proteins that occur in the cocoon silk of Bombyxmori. Two of them (9.9 and 10.3 kDa), which have the N-terminal sequences and the spacing of a few amino acids at C-termini similar to the seroin of Galleria mellonella, are called seroin 1 and seroin 2. The corresponding genes are expressed in the middle, and to a small extent also in the posterior silk gland sections. The seroin 1 and less conspicuously the seroin 2 mRNAs accumulate in the course of the last larval instar to a maximum in postspinning larvae. Two other proteins (6 kDa and 4.7 kDa) of B. mori cocoons were identified as a typical Kunitz-type and a somewhat unusual Kazal-type proteinase inhibitors, and named BmSPI 1 and BmSPI 2, respectively. Their genes are expressed in the middle, and the BmSPI 1 gene slightly also in the posterior silk gland sections. The expression ensues a few days after the last larval ecdysis and increases until the cocoon spinning. Post-spinning larvae still contain high amounts of the BmSPI 1 but no BmSPI 2 transcripts. It is assumed that seroins and proteinase inhibitors are involved in cocoon protection against predators and microbes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0962-1075
pubmed:author
pubmed:issnType
Print
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
437-45
pubmed:dateRevised
2009-11-3
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Identification of four small molecular mass proteins in the silk of Bombyx mori.
pubmed:affiliation
Institute of Entomology, Academy of Sciences, and Faculty of Biological Sciences, University of South Bohemia, Ceské Budejovice, Czech Republic.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't