Dataset Information

Proteomic analysis of Pichia pastoris GS115

ABSTRACT: Pichia pastoris GS115 was cultured in YPD medium and protein were extracted and separated on SDS-PAGE followed by in-gel trypsin digestion. Protein were also digested in-solution using trypsin and fractionated using SCX and bRPLC. A total of 101 peptide fractions were analyzed on LTQ-Orbitrap Velos mass spectrometer. The raw data was searched using Mascot, Sequest and MS Amanda search algorithms against P. pastorisGS115 NCBI RefSeq database through Proteome Discoverer software suite.

INSTRUMENT(S): LTQ Orbitrap Velos

ORGANISM(S): Komagataella Pastoris (strain Gs115 / Atcc 20864) (yeast) (pichia Pastoris)

SUBMITTER: Akhilesh Pandey

PROVIDER: PXD000627 | Pride | 2014-11-18

REPOSITORIES: Pride

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Publications

Proteomic analysis and genome annotation of Pichia pastoris, a recombinant protein expression host.

Renuse Santosh S Madugundu Anil K AK Kumar Praveen P Nair Bipin G BG Gowda Harsha H Prasad T S Keshava TS Pandey Akhilesh A

Proteomics 20141120 23-24

Pichia pastoris is a widely used eukaryotic host for production of recombinant proteins. We performed a proteogenomic analysis using high resolution Fourier transform MS to characterize the proteome of the GS115 strain. Our analysis resulted in identification of 46,889 unique peptides mapping to 3914 unique protein groups, which corresponds to ∼ 80% of the predicted genes. In addition, our proteogenomic analysis led to the discovery of 64 novel genes and correction of 11 predicted gene models. T ...[more]

PMID: 25346215

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Project description:Over the past three decades, due to the universal application of Pichia yeast in the fermentation industry as well as the establishment of Pichia pastoris fermentation process for more than 30 years, the technology of the whole process has become very mature and has now reached a stagnated period of growth. However, studies and research conducted on the genomics of the classic fermentation process and the uncovering of the biological phenomena in the fermentation process from the point of view of high-throughput gene or protein is still in its early stages, and there is still insufficient data within this field. First, in collaboration with Agilent Company, we designed and prepared an expression microarray that could be used for the detection of Pichia pastoris transcriptomics. The transcriptomic changes in the five key technology steps (time points), during the fermentation process of Pichia pastoris would then be detected with the aid of an expression microarray. The five key steps of technology described above formed two important biological processes, namely, the limiting carbon source replacement and secondly, the fermentative production of exogenous proteins. The biological phenomena involved in these two processes were displayed and analyzed at the transcriptional level. In addition to this, with regard to the most important function in the fermentation process of Pichia pastoris, oxid-reduction, the metabolic drift process was analyzed and the important genes that might dominate the changes in the metabolic flux were discovered creatively by using the function tree method in this paper. This study was undertaken from the point of view of the transcriptome and the biological phenomena in the fermemntation process of Pichia pastoris. Both of which, were thoroughly explained during this study. The hope is for many more researchers to optimize the strain fermentation process, to produce proteins at the genetic level, as well as providing and obtaining new perspectives and detailed scientific data for the continued development within this field. The transcriptomic changes in the five key technology steps (time points), during the fermentation process of Pichia pastoris would then be detected with the aid of an expression microarray.

Dataset Information

Proteomic analysis of Pichia pastoris GS115

Publications

Proteomic analysis and genome annotation of Pichia pastoris, a recombinant protein expression host.

Similar Datasets

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