The SCX/IMAC enrichment approach for global phosphorylation analysis by mass spectrometry (Record no. 51549)

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control field 20250625160209.0
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Transcribing agency CICY
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Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-17386
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245 10 - TITLE STATEMENT
Title The SCX/IMAC enrichment approach for global phosphorylation analysis by mass spectrometry
490 0# - SERIES STATEMENT
Volume/sequential designation Nature Protocols, 3(10), p.1630-1638, 2008
520 3# - SUMMARY, ETC.
Summary, etc. The success in profiling the phosphoproteome by mass spectrometry-based proteomics has been intimately related to the availability of methods that selectively enrich for phosphopeptides. To this end, we describe a protocol that combines two sequential enrichment steps. First, strong cation exchange (SCX)hromatography separates peptides by solution charge. Phosphate groups contribute to solution charge by adding a negative charge at pH 2.7. Therefore, at that pH, phosphopeptides are expected to elute earlier than their nonphosphorylated homologs. Second, immobilized metal affinity chromatography (IMAC)takes advantage of phosphate's affinity for metal ions such as Fe3+ to uniformly enrich for phosphopeptides from the previously collected SCX fractions. We have successfully employed the SCX/IMAC enrichment strategy in the exploration of phosphoproteomes from several systems including mouse liver and Drosophila embryos characterizing over 5,500 and 13,000 phosphorylation events, respectively. The SCX/IMAC enrichment protocol requires 2 days, and the entire procedure from cells to a phosphorylation data set can be completed in less than 10 days.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Villén, J.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Gygi, Steven P.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/16yMHuY7g7syq6An7h1soOZIy36iFnRPq/view?usp=drivesdk">https://drive.google.com/file/d/16yMHuY7g7syq6An7h1soOZIy36iFnRPq/view?usp=drivesdk</a>
Public note Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-17386 25.06.2025 25.06.2025 Documentos solicitados