Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2002-5-28
pubmed:abstractText
Antimicrobial peptides play an important role in innate host defenses against infection. Clavanins are histidine-rich, amidated, 23-residue alpha-helical antimicrobial peptides that were isolated from a mixed population of Styela clava hemocytes. To learn which types of hemocytes contained clavanins, we raised a polyclonal antibody that recognized five different clavanins, and used it to localize these peptides by light and electron microscopy. Clavanins were present in the cytoplasmic granules and/or cytoplasm of five different types of granulocytes and they also occurred throughout the cytoplasm of macrophages. The orange G component of Mallory's trichrome stain had a high affinity for clavanins, and for the cytoplasmic granules of S. clava's hemocytes. Semiquantitative analysis of acid urea-PAGE gels suggested that clavanins and styelins comprised between 10 and 20% of the total cellular protein of eosinophilic granulocytes. Orange G and the century-old trichrome stain may provide simple screening tools for identifying cells that contain large amounts of antimicrobial peptides in mixed hemocyte populations.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0145-305X
pubmed:author
pubmed:issnType
Print
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
505-15
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Immunolocalization of clavanins in Styela clava hemocytes.
pubmed:affiliation
Department of Medicine, UCLA School of Medicine, CHS 37-062, 10833 LeConte Avenue, Los Angeles, CA 90095-1690,USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.