MassIVE MSV000087575

Partial Public PXD026499

LC-MS/MS-based in vitro kinase assays performed with recombinant maltose-binding protein-tagged P. falciparum calcium dependent protein kinase 4 using synthetic peptides as substrates

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Description

In vitro kinase assays were performed with recombinant maltose-binding protein (MBP) tag-fused PfCDPK4 protein using synthetic peptides as substrates. Kinase reaction buffer contained CaCl2 or the calcium chelator EGTA. Triplicate reactions with either the CaCl2 buffer or the EGTA buffer were performed in parallel and the peptides were detected and quantified by LC-MS/MS. The suitability of a peptide as a substrate for PfCDPK4 was quantified as the depletion of the unmodified peptide as it was converted to phosphopeptide. Additionally, autophosphorylation of PfCDPK4 was assessed by performing the reaction in the absence of substrates followed by tryptic digest and LC-MS/MS of the resulting peptides to identify phosphorylation sites. [doi:10.25345/C52V5N] [dataset license: CC0 1.0 Universal (CC0 1.0)]

Keywords: plasmodium falciparum ; kinase ; phosphorylation

Contact

Principal Investigators:
(in alphabetical order) 		Kristian Swearingen, Institute for Systems Biology, United States
Submitting User: kswearingen
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Number of distinct biological replicates across all analyses (original submission and reanalyses) associated with this dataset.

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Originally identified proteins that were automatically remapped by MassIVE to proteins in the SwissProt human reference database.

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Number of distinct protein accessions reported across all analyses (original submission and reanalyses) associated with this dataset.

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Number of distinct unmodified peptide sequences reported across all analyses (original submission and reanalyses) associated with this dataset.

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Number of distinct peptide sequences (including modified variants or peptidoforms) reported across all analyses (original submission and reanalyses) associated with this dataset.

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Total number of peptide-spectrum matches (i.e. spectrum identifications) reported across all analyses (original submission and reanalyses) associated with this dataset.

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Number of distinct proteins quantified across all analyses (original submission and reanalyses) associated with this dataset.

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Number of distinct proteins found to be differentially abundant in at least one comparison across all analyses (original submission and reanalyses) associated with this dataset.

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Distinct protein accessions are counted across all files submitted in the "Statistical Analysis of Quantified Analytes" category having a "Protein" column in this dataset.

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