Linked Life Data

21280576

Source:http://linkedlifedata.com/resource/pubmed/id/21280576

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2011-4-1
pubmed:abstractText
The proteome of the venom of Micrurus nigrocinctus (Central American coral snake) was analyzed by a "venomics" approach. Nearly 50 venom peaks were resolved by RP-HPLC, revealing a complex protein composition. Comparative analyses of venoms from individual specimens revealed that such complexity is an intrinsic feature of this species, rather than the sum of variable individual patterns of simpler composition. Proteins related to eight distinct families were identified by MS/MS de novo peptide sequencing or N-terminal sequencing: phospholipase A(2) (PLA(2)), three-finger toxin (3FTx), l-amino acid oxidase, C-type lectin/lectin-like, metalloproteinase, serine proteinase, ohanin, and nucleotidase. PLA(2)s and 3FTxs are predominant, representing 48 and 38% of the venom proteins, respectively. Within 3FTxs, several isoforms of short-chain ?-neurotoxins as well as muscarinic-like toxins and proteins with similarity to long-chain ?-2 bungarotoxin were identified. PLA(2)s are also highly diverse, and a toxicity screening showed that they mainly exert myotoxicity, although some are lethal and may contribute to the known presynaptic neurotoxicity of this venom. An antivenomic characterization of a therapeutic monospecific M. nigrocinctus equine antivenom revealed differences in immunorecognition of venom proteins that correlate with their molecular mass, with the weakest recognition observed toward 3FTxs.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1535-3907
pubmed:author
pubmed:issnType
Electronic
pubmed:day
1
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1816-27
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Venomic and antivenomic analyses of the Central American coral snake, Micrurus nigrocinctus (Elapidae).
pubmed:affiliation
Instituto Clodomiro Picado, Facultad de Microbiologi?a, Escuela de Medicina, Universidad de Costa Rica, San Jose?, Costa Rica.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't