Document Detail


Subunit compositions of crustacean haemocyanins are species-specific: evidence from non-decapod species.
MedLine Citation:
PMID:  11282329     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Electrophoretic examination of dissociated haemocyanin subunits from a number of amphipod, decapod and isopod crustaceans supports the hypothesis that subunit composition is species-specific, despite marked within-species variation in many species. General patterns of heterogeneity on native PAGE gels were also evident between groupings within the Amphipoda. Gammarid amphipods could be split into two groups; one characterised by a high degree of heterogeneity and the other by a low degree of heterogeneity. The talitrid amphipods generally displayed a low degree of heterogeneity similar to, although still distinct from, the second gammarid category. Haemocyanin from the Hyalidae, a family allied to the talitrids was highly heterogeneous, similar to the first gammarid group and unlike the talitrids. Isopod haemocyanin banding patterns were more similar to one another than to any of the amphipod or decapod species examined. In general, the molecular weights of the amphipod Hcs tended to be greater than those of the isopods, with the decapods being lowest of all. It is suggested that Hc subunit heterogeneity may be a useful tool for investigating speciation and speciation events, and for reliably separating very closely-related species (e.g. Gammarus spp.), purely on the basis of their Hc subunit compositions.
Authors:
E Hodgson; J I Spicer
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Comparative biochemistry and physiology. Part A, Molecular & integrative physiology     Volume:  128     ISSN:  1095-6433     ISO Abbreviation:  Comp. Biochem. Physiol., Part A Mol. Integr. Physiol.     Publication Date:  2001 Apr 
Date Detail:
Created Date:  2001-04-03     Completed Date:  2001-08-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9806096     Medline TA:  Comp Biochem Physiol A Mol Integr Physiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  873-88     Citation Subset:  IM    
Affiliation:
Department of Animal & Plant Sciences, University of Sheffield, S10 2TN, Sheffield, UK.
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MeSH Terms
Descriptor/Qualifier:
Animals
Crustacea / chemistry*
Electrophoresis, Polyacrylamide Gel / methods
Hemocyanin / analysis,  chemistry*
Protein Subunits
Species Specificity
Chemical
Reg. No./Substance:
0/Protein Subunits; 9013-72-3/Hemocyanin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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