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. 2010 Feb 17;9(6):1260–1270. doi: 10.1074/mcp.M900504-MCP200

Fig. 4.

Fig. 4.

The profile HMM used to align spectra and produce a consensus spectrum. A, the spectrum profile HMM derived from the anchor “VCAK” after aligning four spectra, all of which are aligned to the state I5. The peaks aligned to that state are shown and suggest a candidate Match state at mass 515.33 Da. B, the same HMM after we performed model surgery to add the new Match state.