Proteomics

Dataset Information

0

Proteogenomic analysis of Helicobacter pylori strain 26695


ABSTRACT: Dear Sir or Madam, we report an in-depth proteogenomics study of Helicobacter pylori strain 26695 and provide the supporting MS data via ProteomExchange. The study includes 2 biological replicates with 6 different datasets: G1: in-gel digestion with trypsin, replicate 1 G2: in-gel digestion with trypsin, replicate 2 T1: SEC fractionation of low molecular weight (LMW) proteins and subsequent trypsin digestion, replicate 1 T2: SEC fractionation of LMW proteins and subsequent trypsin digestion, replicate 2 A1: SEC fractionation of LMW proteins and subsequent AspN digestion, replicate 1 A2: SEC fractionation of LMW proteins and subsequent AspN digestion, replicate 2 L1: SEC fractionation of LMW proteins and subsequent LysC digestion, replicate 1 L2: SEC fractionation of LMW proteins and subsequent LysC digestion, replicate 2 In our proteogenomics approach, we could identify four previously missing protein annotations and were able to correct sequences of six protein coding regions. Furthermore we identified signal peptidase cleavage sites for 72 different proteins. MGFs were generated by Maxquant 1.1 [1] using recalibration of peptide parent masses. For PRIDE (http://www.ebi.ac.uk/pride) submission, we made an additional database search with Mascot and X!Tandem using the SearchGUI [2]. Therefore we searched against a NCBI database of H. pylori strain 26695 complemented with the sequence corrections, signal peptide cleavage sites and missing annotations with the same configurations as described in materials and methods. For pride xml export we used the software PeptideShaker (http://code.google.com/p/peptide-shaker/). The complemented database has entries which will be submitted to the UniProtKB via SPIN. The entries have the according SPIN number as accession number. The NCBI accession numbers for the shortened sequences due to signal peptide cleavage are extended with “_1”. The fasta database is added to the submission. For additional information, please contact me: stephan.mueller@ufz.de Yours sincerely, Stephan Mueller References: [1] Cox J, Neuhauser N, Michalski A, Scheltema RA, Olsen JV, Mann M. Andromeda: a peptide search engine integrated into the MaxQuant environment. Journal of proteome research. 2011;10:1794-805. [2] Vaudel M, Barsnes H, Berven FS, Sickmann A, Martens L. SearchGUI: An open-source graphical user interface for simultaneous OMSSA and X!Tandem searches. Proteomics. 2011;11:996-9.

INSTRUMENT(S): LTQ Orbitrap

ORGANISM(S): Helicobacter Pylori 26695

SUBMITTER: Stephan Müller  

LAB HEAD: Stephan Müller

PROVIDER: PXD000054 | Pride | 2013-08-01

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
HP_1a_AspN_F5.RAW Raw
HP_1a_AspN_F6.RAW Raw
HP_1a_AspN_F7.RAW Raw
HP_1a_AspN_F8.RAW Raw
HP_1a_F5_LysC_110227005544.RAW Raw
Items per page:
1 - 5 of 98
altmetric image

Publications

Identification of new protein coding sequences and signal peptidase cleavage sites of Helicobacter pylori strain 26695 by proteogenomics.

Müller Stephan A SA   Findeiß Sven S   Pernitzsch Sandy R SR   Wissenbach Dirk K DK   Stadler Peter F PF   Hofacker Ivo L IL   von Bergen Martin M   Kalkhof Stefan S  

Journal of proteomics 20130509


Correct annotation of protein coding genes is the basis of conventional data analysis in proteomic studies. Nevertheless, most protein sequence databases almost exclusively rely on gene finding software and inevitably also miss protein annotations or possess errors. Proteogenomics tries to overcome these issues by matching MS data directly against a genome sequence database. Here we report an in-depth proteogenomics study of Helicobacter pylori strain 26695. MS data was searched against a combin  ...[more]

Similar Datasets

2014-09-05 | GSE61167 | GEO
2014-09-05 | E-GEOD-61167 | biostudies-arrayexpress
2019-11-28 | PXD000634 | Pride
2018-10-04 | PXD010093 | Pride
2020-03-24 | PXD016646 |
2015-04-27 | PXD000621 | Pride
2018-01-24 | PXD008553 | Pride
2016-06-22 | E-PROT-5 | biostudies-arrayexpress
2013-03-21 | GSE45357 | GEO
| PRJEB32601 | ENA