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To learn more about the regulation of muscle contraction in the structural and functionally different muscles in Ecdysozoa, we have analysed the four EF-hand proteins calmodulin (CaM), troponin C (TnC), essential myosin light chain (eMLC) and regulatory myosin light chain (rMLC) in the velvet worm Peripatoides sp. These proteins are typified by a helix-loop-helix motif and trigger the actin–myosin interaction in muscle tissue and non-muscle cells by coordinative binding of calcium ions. CaM (632 bp) and TnC (853 bp) revealed 4 and 2 potential calcium-binding domains, respectively. Based on analysis of both MLCs, only the rMLC (798 bp) showed one potential N-terminal EF-hand domain and a consensus phosphorylation sequence motif, which suggests a phosphorylation of this myosin light chain. We have compared these results with previously published data from the eutardigrade Hypsibius klebelsbergi and found striking conformity between both taxa. Further, we compared the new sequences with corresponding sequences from nematodes and arthropods retrieved from GenBank. Thiruketheeswaran Prasath, Heinrich-Heine-Universität Düsseldorf Institut für Zellbiologie, Department Biologie Hartmut Greven, Heinrich-Heine-Universität Düsseldorf Institut für Zellbiologie, Department Biologie Jochen D'Haese, Heinrich-Heine-Universität Düsseldorf Institut für Zellbiologie, Department Biologie Prasath, Thiruketheeswaran, Hartmut Greven, and Jochen D’Haese. 2013. “EF-Hand Proteins in Onychophorans As Compared to Tardigrades and Other Ecdysozoans”. Journal of Limnology 72 (s1):e5. https://doi.org/10.4081/jlimnol.2013.s1.e5. More Citation Formats ACM ACS APA ABNT Chicago Harvard MLA Turabian Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Downloads Download data is not yet available. Citations Themes by Openjournaltheme.com authors FOR AUTHORS SUBMIT YOUR PAPER Guide for Authors Benefits for Authors How to write a scientific paper How to write a Review article Article Processing Charge Registering new species in ZooBank reviewers FOR REVIEWERS Benefits for Reviewers How to review Thanks to Reviewers links LINKS CNR-IRSA - Water Research Institute Associazione Italiana di Oceanologia e Limnologia International Society of Limnology EFFS - European Federation for Freshwater Sciences International Society for Microbial Ecology flyer JOURNAL FLYER Phytoplankton-zooplankton coupling in a cascade of hypertrophic fishponds 21 September 2023 Marija Radojičić et al. Vol. 82 (2023) Seasonal variation in the relative strength of bottom-up vs top-down effects in pelagic cladoceran populations identified through contribution analysis of birth rate 7 September 2023 Anna A. Kasparson et al. Vol. 82 (2023) In situ effects of arsenic, aluminium and chromium stresses on algal periphyton of the river Ganga at Varanasi, India 30 June 2023 Arpana Yadav et al. Vol. 82 (2023) Periphyton growth on allochthonous input in streams may lead to higher individual growth rates of the invasive New Zealand mud snail (Potamopyrgus antipodarum) 20 June 2023 Sally Ghannam et al. Vol. 82 (2023) Gross mismatches between salmonid stocking and capture record data in a large Alpine lake basin in Northern Italy suggest a low stocking effectiveness for an endangered native trout 16 June 2023 Gianluca Polgar et al. Vol. 82 (2023) @j_limnology Most read last month Longitudinal recovery gradient of macroinvertebrates during different hydrological scenarios in a downstream river reach 107 A georeferenced dataset for occurrence records of the phylum Rotifera in Africa 90 The Freshwater Biodiversity Information System (FBIS) fish data: a georeferenced dataset of freshwater fishes occurring in South Africa 74 Most Cited Article Formation of large colonies: a defense mechanism of Microcystis aeruginosa under continuous grazing pressure by flagellate Ochromonas sp. Cited: 60 19 January 2012 Zhen Yang et al. A numerical index for evaluating phytoplankton response to changes in nutrient levels in deep mediterranean reservoirs Cited: 60 1 February 2009 Aldo MARCHETTO et al. Last Updated: 3 October 2023 Keywords The Journal of Limnology is an Open Access, academic peer-reviewed journal published by PAGEPress®, Pavia, Italy on behalf of the CNR-IRSA, Italy. All credits and honors to PKP for their OJS. Registered in print in Verbania, 7-10-1959, n. 58.

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