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Diagnosis and Classification of Amyloidosis

MS-Based Proteomic Analysis

Slide 22

December 2009

This slide shows the results of mass spectrometry analysis performed on tryptic peptides obtained from four different microdissection samples (indicated as samples 1-4) and a negative blank control. The left column shows the list of proteins identified, and the percentages indicate the probability of accurate identification of each protein in each sample.

The most abundant protein identified was serum amyloid P component (SAP), followed by transthyretin (TTR). No immunoglobulin lambda light chains were present. This result indicates ATTR type amyloidosis.

Proteomic Analysis


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