Hildebrand, Jasper; Chang, William Weijen; Hu, Marian Y; Stumpp, Meike (2024): Trypsin activity during laboratory experiments with different protease inhibitor and pH treatments [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.965983, In: Hildebrand, J et al. (2024): Protease characterization of larval Strongylocentrotus purpuratus collected from La Jolla, USA [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.966001
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Abstract:
Strongylocentrotus purpuratus (Stimpson 1857) originally collected in November 2020 from La Jolla, USA (Lat: 32.842674; Long: -117.257767) were held in flow-through tanks which were filled with water from Kiel Fjord adjusted to 31.5 psu at GEOMAR Helmholtz Centre for Ocean Research Kiel at 10 °C. For experimental characterization of protein digestion between January and June 2021 S. purpuratus larvae were generated by gently shaking adult males and females and held in climate chambers at 15°C and 31.5 psu in the Christian-Albrechts-Universität zu Kiel up to 14 days under different food conditions. Using RT-qPCR analysis, expression patterns of four protease genes including an enteropeptidase, aminopeptidase, carboxypeptidase and trypsin were analyzed against the housekeeping gene Elongation factor 1-alpha 1 (EF1a). Total protease activity of larval extracts were analyzed under different pHs, at different sampling points and with protease inhibitors including Soybean Trypsin Inhibitor and Aprotinin. Alterations of larval in vivo digestion rates were characterized under inhibitor influence. For both inhibitors the initial incubation before starting the reaction was 45 min. Data are supplement to: Hildebrand et al. (2023) Characterization of digestive proteases in the gut of a basal deuterostome accepted for publication in Journal of Experimental Biology.
Keyword(s):
Supplement to:
Hildebrand, Jasper; Chang, William Weijen; Hu, Marian Y; Stumpp, Meike (2023): Characterization of digestive proteases in the gut of a basal deuterostome. Journal of Experimental Biology, 226(15), jeb245789, https://doi.org/10.1242/jeb.245789
Funding:
German Research Foundation (DFG), grant/award no. 441084746: Black box larval physiology - mechanisms of nutrient acquisition and energetics of invertebrate larvae in a changing ocean
Coverage:
Latitude: 32.842674 * Longitude: -117.257767
Event(s):
Comment:
Determination of the effect of commercially aquired trypsin on the food (Rhodomonas. sp.) in filtered seawater (FSW) and artificial seawater (ASW) under consideration of different pH values and protease inhibitors
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Experiment | Exp | Hildebrand, Jasper | ID | ||
| 2 | Sampling date/time, experiment | Date/time sampling exp | Hildebrand, Jasper | |||
| 3 | Sample ID | Sample ID | Hildebrand, Jasper | |||
| 4 | Type of study | Study type | Hildebrand, Jasper | |||
| 5 | Laboratory | Lab | Hildebrand, Jasper | |||
| 6 | Comment | Comment | Hildebrand, Jasper | Buffer | ||
| 7 | Treatment | Treat | Hildebrand, Jasper | |||
| 8 | Treatment: pH | T:pH | Hildebrand, Jasper | Conductivity Meter, WTW, ProfiLine Cond 3110 | ||
| 9 | Trypsin activity, difference in absorption per time and protein mass | Trypsin act | 1/h/mg | Hildebrand, Jasper | Calculated | Absorbance measured with BioSpectrometer (Eppendorf, Hamburg, Germany) at 366 nm. Mean (n=3). |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
54 data points