Abstract:
:Daphnia pulex is a keystone species for aquatic habitats and an ecological/evolution model organism. Although significant progress has been made on characterizing its genome, the D. pulex proteome remains largely uncharacterized partially due to abnormally high protein degradation during homogenization and emphasis on genomic analysis. In this study, various sample preparation and mass spectrometry acquisition methods are performed for the purpose of improving D. pulex proteome exploration. Benefits for employing both in-gel and in-solution methods of trypsin digestion are observed. Furthermore, acquisition methods employing ion mobility separation greatly increase peptide identification and more than doubled the proteome coverage. Bioinformatic analysis suggests that mitochondrial and hydrolytic activities are enriched in D. pulex compared to closely related invertebrates or Homo sapiens. Also, novel D. pulex proteins possessing putative genome modifying functional domains are identified. Data are available via ProteomeXchange with identifier PXD008455.
journal_name
Proteomicsjournal_title
Proteomicsauthors
Steevensz A,Gombar R,Vergilino R,Cristescu ME,Vacratsis POdoi
10.1002/pmic.201700460subject
Has Abstractpub_date
2018-08-01 00:00:00pages
e1700460issue
16eissn
1615-9853issn
1615-9861journal_volume
18pub_type
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