Object's details: Biochemical characteristics of myofibrillar proteins of the fish parasite Isoparorchis hypselobagri (Trematoda) as survival traits in an oxygen-rich environment

Provider:Platforma Otwartych Czasopism Naukowych UAM

Description

Title:
Biochemical characteristics of myofibrillar proteins of the fish parasite Isoparorchis hypselobagri (Trematoda) as survival traits in an oxygen-rich environment
Creator:
Abbasi, Usma;
Ahmad, Riaz;
Hasnain, Absar-ul
Description:
We have investigated biochemical properties of myofibrillar proteins of the digenetic trematode Isoparorchis hypselobagri, which correlate with its survival in the oxygen-rich swim bladder of its host catfish (Wallago attu). The polypeptide composition of the trematode’s natural actomyosin (NAM) was striated-muscle-like, with the exception that a 98-kD polypeptide corresponding to paramyosin also existed in its sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) profiles. The profiles of immunoprecipitated NAM of the trematode support these inferences. Ca2+-sensitivity of myofibrillar contractility and Mg2+-ATPase activity of I. hypselobagri resembled troponin-linked calcium regulation of the host striated muscle. Myofibrillar permeability to water influx was insensitive to calcium chelation at neutral pH. However, the host swim bladder myofibrils displayed smooth-muscle-like polypeptide composition, pH dependence of contractility, Ca2+-sensitivity, ATPase activities, and inactivation kinetics. We propose 2 survival strategies that I. hypselobagri appears to have co-evolved: (i) fast-muscle-like musculature with exceptionally high contractility or ATPase activity; and (ii) type-II myosin resembling the host muscle in functional plasticity.
Object availability:
free access
Date:
2013.02.14
Type:
info:eu-repo/semantics/article;
info:eu-repo/semantics/publishedVersion;
Recenzowany artykuł
Language:
English
Source:
Biological Letters; Vol. 49 No. 1 (2012); 45-58;
Biological Letters; Tom 49 Nr 1 (2012); 45-58;
1734-7467;
1644-7700
Format:
application/pdf
Publisher:
Adam Mickiewicz University Poznan
Relation: http://pressto.amu.edu.pl/index.php/BIOLET/article/view/v10120-012-0009-0/28657
Subject:
Isoparorchis hypselobagri;
immunoprecipitation;
natural actomyosin;
contractility;
myofibrillar ATPase;
oxygen-rich environment;
Wallago attu
Identifier: http://pressto.amu.edu.pl/index.php/BIOLET/article/view/v10120-012-0009-0
Data provider:
Platforma Otwartych Czasopism Naukowych UAM

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