title: Quest for Missing Proteins: Update 2015 on Chromosome-Centric Human Proteome Project.
abstract: This paper summarizes the recent activities of the Chromosome-Centric Human Proteome Project (C-HPP) consortium, which develops new technologies to identify yet-to-be annotated proteins (termed "missing proteins") in biological samples that lack sufficient experimental evidence at the protein level for confident protein identification. The C-HPP also aims to identify new protein forms that may be caused by genetic variability, post-translational modifications, and alternative splicing. Proteogenomic data integration forms the basis of the C-HPP's activities; therefore, we have summarized some of the key approaches and their roles in the project. We present new analytical technologies that improve the chemical space and lower detection limits coupled to bioinformatics tools and some publicly available resources that can be used to improve data analysis or support the development of analytical assays. Most of this paper's content has been compiled from posters, slides, and discussions presented in the series of C-HPP workshops held during 2014. All data (posters, presentations) used are available at the C-HPP Wiki (http://c-hpp.webhosting.rug.nl/) and in the Supporting Information.
authors.affiliation: Analytical Biochemistry, Department of Pharmacy, University of Groningen , A. Deusinglaan 1, 9713 AV Groningen, The Netherlands.
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authors.affiliation: Science for Life Laboratory, KTH - Royal Institute of Technology , SE-171 21 Stockholm, Sweden.
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authors.affiliation: Institute of Chemistry, Academia Sinica , 128 Academia Road Sec. 2, Taipei 115, Taiwan.
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authors.affiliation: Institute of Information Science, Academia Sinica , 128 Academia Road Sec. 2, Taipei 115, Taiwan.
authors.forename: Ting-Yi
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authors.lastname: Sung
authors.affiliation: The State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine , No. 27 Taiping Road, Haidian District, Beijing 100850, China.
authors.forename: Fuchu
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authors.affiliation: Department of Biochemistry and Molecular Biology, Monash University , Clayton, Victoria 3800, Australia.
authors.forename: Edouard C
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authors.affiliation: Department of Biochemistry and Molecular Biology, Monash University , Clayton, Victoria 3800, Australia.
authors.forename: Robert J
authors.initials: RJ
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authors.affiliation: Department of Biochemistry and Molecular Biology, Monash University , Clayton, Victoria 3800, Australia.
authors.forename: Simon
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authors.affiliation: Department of Chemistry and Biomolecular Sciences and ARC Centre of Excellence in Bioinformatics, Macquarie University , Sydney, New South Wales 2109, Australia.
authors.forename: Shoba
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authors.affiliation: Australian School of Advanced Medicine, Macquarie University , Sydney, NSW 2109, Australia.
authors.forename: Mark S
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authors.affiliation: Proteomics Unit, Institute of Chemistry, Federal University of Rio de Janeiro , Cidade Universitária, Av Athos da Silveira Ramos 149, CT-A542, 21941-909 Rio de Janeriro, Rj, Brazil.
authors.forename: Gilberto B
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authors.affiliation: Proteomics Unit, Institute of Chemistry, Federal University of Rio de Janeiro , Cidade Universitária, Av Athos da Silveira Ramos 149, CT-A542, 21941-909 Rio de Janeriro, Rj, Brazil.
authors.forename: Erika
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authors.affiliation: The State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine , No. 27 Taiping Road, Haidian District, Beijing 100850, China.
authors.forename: Dong
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authors.forename: Siqi
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authors.affiliation: Beijing Institute of Genomics and BGI Shenzhen , No. 1 Beichen West Road, Chaoyang District, Beijing 100101, China.
authors.forename: Quanhui
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authors.affiliation: Department of Computational Medicine & Bioinformatics, University of Michigan , 100 Washtenaw Avenue, Ann Arbor, Michigan 48109-2218, United States.
authors.forename: Rajasree
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authors.forename: Yuanfang
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authors.affiliation: ProteoRed-ISCIII, Biomolecular and Bioinformatics Resources Platform (PRB2), Spanish Consortium of C-HPP (Chr-16), CIMA, University of Navarra, 31008 Pamplona, Spain.|Chr16 SpHPP Consortium , CIMA, University of Navarra, 31008 Pamplona, Spain.
authors.forename: Fernando J
authors.initials: FJ
authors.lastname: Corrales
authors.affiliation: ProteoRed-ISCIII, Biomolecular and Bioinformatics Resources Platform (PRB2), Spanish Consortium of C-HPP (Chr-16), CIMA, University of Navarra, 31008 Pamplona, Spain.|Chr16 SpHPP Consortium , CIMA, University of Navarra, 31008 Pamplona, Spain.
authors.forename: Victor
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authors.affiliation: Proteomics and Metabonomic, Laboratory, Fondazione Santa Lucia , Rome, Italy.|Department of Experimental Medicine and Surgery, University of Rome "Tor Vergata" , Rome, Italy.
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authors.affiliation: Department of Veterinary Science and Public Health (DIVET), University of Milano , via Celoria 10, 20133 Milano, Italy.
authors.forename: Alessio
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authors.forename: Ghasem Hosseini
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authors.affiliation: Orechovich Institute of Biomedical Chemistry , Moscow, Russia.
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authors.affiliation: Orechovich Institute of Biomedical Chemistry , Moscow, Russia.
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authors.affiliation: Orechovich Institute of Biomedical Chemistry , Moscow, Russia.
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authors.affiliation: Department of Pharmacology and Toxicology, The University of Texas Medical Branch , Galveston, Texas 77555-0617, United States.
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authors.affiliation: Clinical Protein Science & Imaging, Department of Biomedical Engineering, Lund University , BMC D13, 221 84 Lund, Sweden.
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authors.affiliation: Clinical Protein Science & Imaging, Department of Biomedical Engineering, Lund University , BMC D13, 221 84 Lund, Sweden.
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authors.affiliation: Departments of Integrated Omics for Biomedical Science & Biochemistry, College of Life Science and Technology, Yonsei Proteome Research Center, Yonsei University , Seoul, 120-749, Korea.
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mesh_terms: D002853:Chromatography, Liquid; D002874:Chromosome Mapping; D023281:Genomics; D006801:Humans; D011506:Proteins / Q000737:chemistry / Q000235:genetics*; D020543:Proteome; D053719:Tandem Mass Spectrometry
chemical_list: D011506:Proteins; D020543:Proteome
keywords: Chromosome-Centric Human Proteome Project; LC−MS; antibody enrichment; bioinformatics; missing proteins; proteomics