Linked Life Data

3214164

Source:http://linkedlifedata.com/resource/pubmed/id/3214164

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1989-2-16
pubmed:abstractText
We have isolated a potent proteinaceous chemoattractant from aqueous washes of earthworm (Lumbricus terrestris) for garter snakes (Thamnophis sirtalis) by means of a covalent chromatography. It contained free sulfhydryl groups and showed an apparent mass of 20 kDa. The chemoattractive activity of this protein could be destroyed by heating as well as by proteolysis. Its activity could also be reversibly blocked by mixed disulfide formation with dithiodipyridine, suggesting that the free sulfhydryl(s) was essential for its function as a chemoattractant. This bioactive material had a tendency to form intermolecular crosslinked aggregates during isolation, if reducing agents were not included. Some of the high-molecular-weight aggregates cochromatographed with earthworm cuticle collagen on Ultragel AcA 34 or 44 columns. In contrast to an earlier report by D. M. Kirschenbaum, N. Schulman, and M. Halpern [1986) Proc. Natl. Acad. Sci. USA 83, 1213-1216) the purified earthworm collagen showed no chemoattractive activity to garter snakes.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0003-9861
pubmed:author
pubmed:issnType
Print
pubmed:volume
267
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
459-66
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Isolation from earthworms of a proteinaceous chemoattractant to garter snakes.
pubmed:affiliation
Department of Biochemistry, SUNY Health Science Center, Brooklyn 11203.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.