PROTEIN IDENTIFICATION BY MASS SPECTRAL ANALYSIS OF PEPTIDES WITH SUBSEQUENT DATABASE SEARCHING HAS BECOME AN IMPORTANT TECHNIQUE IN A NUMBER OF LABORATORIES. THE SUCCESS OF THIS METHODOLOGY IS DUE TO RECENT IMPROVEMENTS IN MASS SPECTROMETRY, IMPROVEMENTS IN SAMPLE HANDLING, IMPROVEMENTS IN SEARCHING ALGORITHMS, AND THE DRAMATIC GROWTH IN THE SEQUENCE DATABASES. MASS SPECTROMETRY WILL BE A VITAL PART OF THE RESOURCE. IT WILL BE USED TO IDENTIFY PROTEINS FROM 2D GELS FOLLOWING PROTEOLYTIC DIGESTION VIA ESTABLISHED PROTOCOLS, SOME DEVELOPED BY DR. AEBERSOLD. MASS SPECTROMETRY WILL UTILIZE AN ELECTROSPRAY IONIZATION-ION TRAP MASS SPECTROMETER WITH THE PEPTIDE MIXTURES INTRODUCED BY CAPILLARY LC OR CAPILLARY ELECTROPHORESIS. AUTOMATED, ON-LINE SEPARATION WITH TANDEM MASS SPECTROMETRY WILL PRODUCE FRAGMENTATION SPECTRA FOR EACH PEPTIDE. EACH SPECTRUM IS USED TO SEARCH A SEQUENCE DATABASE AUTOMATICALLY WITH A PROGRAM DEVELOPED BY DR. YATES LABORATORY, AUTOSEQUEST. IN ADDITION TO THE PROTEIN PREPARATION BY 2D GEL ELECTROPHORESESIS, PROTEINS MAY ALSO BE PREPARED BY SOME DEGREE OF ENRICHMENT, E.G., IMMUNOPRECIPITATION OR AFFINITY CHOMATOGRAPHY. THE MIXTURE ANALYSIS CAPABILITIES OF DR. YATES DATABASE SEARCHING APPROACH MAKE THIS LATTER APPROACH POSSIBLE WITHOUT HIGH RESOLUTION PROTEIN SEPARATION.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
1P41RR011823-01
Application #
5226018
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
1
Fiscal Year
1996
Total Cost
Indirect Cost
Xavier, Marina Amaral; Tirloni, Lucas; Pinto, Antônio F M et al. (2018) A proteomic insight into vitellogenesis during tick ovary maturation. Sci Rep 8:4698
Hollmann, Taylor; Kim, Tae Kwon; Tirloni, Lucas et al. (2018) Identification and characterization of proteins in the Amblyomma americanum tick cement cone. Int J Parasitol 48:211-224
Stieg, David C; Willis, Stephen D; Ganesan, Vidyaramanan et al. (2018) A complex molecular switch directs stress-induced cyclin C nuclear release through SCFGrr1-mediated degradation of Med13. Mol Biol Cell 29:363-375
Seixas, Adriana; Alzugaray, María Fernanda; Tirloni, Lucas et al. (2018) Expression profile of Rhipicephalus microplus vitellogenin receptor during oogenesis. Ticks Tick Borne Dis 9:72-81
Wang, Zheng; Wu, Catherine; Aslanian, Aaron et al. (2018) Defective RNA polymerase III is negatively regulated by the SUMO-Ubiquitin-Cdc48 pathway. Elife 7:
Luhtala, Natalie; Aslanian, Aaron; Yates 3rd, John R et al. (2017) Secreted Glioblastoma Nanovesicles Contain Intracellular Signaling Proteins and Active Ras Incorporated in a Farnesylation-dependent Manner. J Biol Chem 292:611-628
Thakar, Sonal; Wang, Liqing; Yu, Ting et al. (2017) Evidence for opposing roles of Celsr3 and Vangl2 in glutamatergic synapse formation. Proc Natl Acad Sci U S A 114:E610-E618
Jin, Meiyan; Fuller, Gregory G; Han, Ting et al. (2017) Glycolytic Enzymes Coalesce in G Bodies under Hypoxic Stress. Cell Rep 20:895-908
Ogami, Koichi; Richard, Patricia; Chen, Yaqiong et al. (2017) An Mtr4/ZFC3H1 complex facilitates turnover of unstable nuclear RNAs to prevent their cytoplasmic transport and global translational repression. Genes Dev 31:1257-1271
Ju Lee, Hyun; Bartsch, Deniz; Xiao, Cally et al. (2017) A post-transcriptional program coordinated by CSDE1 prevents intrinsic neural differentiation of human embryonic stem cells. Nat Commun 8:1456

Showing the most recent 10 out of 583 publications