Journal: Skeletal Muscle
Article Title: Integrated genomics and proteomics of the Torpedo californica electric organ: concordance with the mammalian neuromuscular junction
doi: 10.1186/2044-5040-1-20
Figure Lengend Snippet: Identification of Torpedo proteins listed in public access databases . To validate tandem mass spectrometry (MS/MS) data against species-specific sequences, spectra acquired via MS/MS analysis of electric organ fractions were analyzed by the SEQUEST algorithm in BioWorks 3.3.1 software, crossreferencing known and characterized Torpedo proteins listed in GenBank. Peptide acceptance criteria was set at ΔCn >0.1, a variable threshold of Xcorr versus charge state: Xcorr = 1.9 for z = 1, Xcorr = 2.2 for z = 2, and Xcorr = 2.5 for z = 3, protein Xcorr >40, and a peptide probability based score with a P value <0.01. Protein identifications were compared with a search against UniProtKB (Swiss-Prot and TrEMBL) release 14.0, all species, to maintain consistency with databases used and protein accession numbers reported. Proteins identified are categorized by the likelihood and appropriateness of detection based on protein subcellular location or on the quality of data on public access databases.
Article Snippet: Raw spectra were analyzed by the SEQUEST algorithm in BioWorks 3.3.1 software, crossreferencing our T. californica cDNA library translated into six reading frames and The Universal Protein Resource (UniProtKB/Swiss-Prot) release 14.0 [ ].
Techniques: Mass Spectrometry, Tandem Mass Spectroscopy, Software