Abstract
In the snow crab, Chionoecetes opilio (Brachyura: Majidae), LDH is present in rive isozymic forms, as revealed by the rive coloration zones in zymograms. This is characteristic of a tetrameric LDH enzyme formed by the random association between two distinct sub-units. Isozymes of C. opilio LDH show tissue specificity. No LDH activity is detected in the hepatopancreas. The LDH-B∗ locus is expressed in all other tissues examined, except the eye, in which LDH-A∗ is the only locus detected. Both loci are expressed in nervous, midgut and leg muscle tissues, the last showing individual variability. At least among males, the LDH-B∗ locus is expressed in leg muscle tissue at every developmental stage, while LDH-A∗ locus expression is initiated only in the VIIth post-larval stage, just before the onset of gametogenesis. Results suggest that LDH sub-units in C. opilio have distinct physiological roles. This is very well known in vertebrates, but is virtually undocumented in invertebrates.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Comparative Biochemistry and Physiology Part B: Comparative Biochemistry
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.