Dataset Information

Hs_Prostate_LysC

ABSTRACT: Hs_Prostate_LysC

REANALYSIS of: PXD000865

INSTRUMENT(S): LTQ Orbitrap Velos

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Male Reproductive System

SUBMITTER: Wilhelm et al.

PROVIDER: PAe004975 | PeptideAtlas | 2014-12-31

REPOSITORIES: PeptideAtlas

ACCESS DATA

Publications

Mass-spectrometry-based draft of the human proteome.

Wilhelm Mathias M Schlegl Judith J Hahne Hannes H Gholami Amin Moghaddas AM Lieberenz Marcus M Savitski Mikhail M MM Ziegler Emanuel E Butzmann Lars L Gessulat Siegfried S Marx Harald H Mathieson Toby T Lemeer Simone S Schnatbaum Karsten K Reimer Ulf U Wenschuh Holger H Mollenhauer Martin M Slotta-Huspenina Julia J Boese Joos-Hendrik JH Bantscheff Marcus M Gerstmair Anja A Faerber Franz F Kuster Bernhard B

Nature 20140501 7502

Proteomes are characterized by large protein-abundance differences, cell-type- and time-dependent expression patterns and post-translational modifications, all of which carry biological information that is not accessible by genomics or transcriptomics. Here we present a mass-spectrometry-based draft of the human proteome and a public, high-performance, in-memory database for real-time analysis of terabytes of big data, called ProteomicsDB. The information assembled from human tissues, cell lines ...[more]

PMID: 24870543

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Project description:Breastfeeding provides defense against infectious disease during early life. The mechanisms underlying this protection are complex but likely include the vast array of immune cells and components, such as immunoglobulins, in milk. Simply characterizing the concentrations of these bioactives, however, provides only limited information regarding their potential relationships with disease risk in the recipient infant. Rather, understanding pathogen and antigen specificity profiles of milk-borne immunoglobulins might lead to a more complete understanding of how maternal immunity impacts infant health and wellbeing. Milk produced by women living in 11 geographically dispersed populations was applied to a protein microarray containing antigens from 16 pathogens, including diarrheagenic E. coli, Shigella spp., Salmonella enterica serovar Typhi, Staphylococcus aureus, Streptococcus pneumoniae, Mycobacterium tuberculosis and other pathogens of global health concern, and specific IgA and IgG binding was measured. Our analysis identified novel disease-specific antigen responses and suggests that some IgA and IgG responses vary substantially within and among populations. Patterns of antibody reactivity analyzed by principal component analysis and differential reactivity analysis were associated with either lower-to-middle-income countries (LMICs) or high-income countries (HICs). Antibody levels were generally higher in LMICs than HICs, particularly for Shigella and diarrheagenic E. coli antigens, although sets of S. aureus, S. pneumoniae, and some M. tuberculosis antigens were more reactive in HICs. Differential responses were typically specific to canonical immunodominant antigens, but a set of nondifferential but highly reactive antibodies were specific to antigens possibly universally recognized by antibodies in human milk. This approach provides a promising means to understand how breastfeeding and human milk protect (or do not protect) infants from environmentally relevant pathogens. Furthermore, this approach might lead to interventions to boost population-specific immunity in at-risk breastfeeding mothers and their infants.

Dataset Information

Hs_Prostate_LysC

Publications

Mass-spectrometry-based draft of the human proteome.

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