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Table 2 Identified proteins of the 1:3 sample mix.

From: Precise protein quantification based on peptide quantification using iTRAQ™

Protein Id

Protein name

Mascot™ score (#i, #q)

Peptide sequences

Identical identification

P00722

Beta-galactosidase BGAL_ECOLI

746 (15, 15)

APLDNDIGVSEATR

DWENPGVTQLNR

GDFQFNISR

IDPNAWVER

LSGQTIEVTSEYLFR

QNNFNAVR

QSGFLSQMWIGDK

QSGFLSQMWIGDKK

RDWENPGVTQLNR

VNWLGLGPQENYPDR

VVQPNATAWSEAGHISAWQQWR

WSDGSYLEDQDMWR

WVGYGQDSR

YGLYVVDEANIETHGMVPMNR

YSQQQLMETSHR

 

P49663

Lysozyme C (LYSC_PHAVE

440 (5, 1)

CELAAAMK (*)

GYSLGNWVCAAK (*)

IVSDGDGMNAWVAWR (*)

KIVSDGDGMNAWVAWR

NTDGSTDYGILQINSR (*)

 

P00698

Lysozyme C precursor LYSC_CHICK

368 (7, 3)

CELAAAMK (*)

FESNFNTQATNR

GTDVQAWIR

GYSLGNWVCAAK (*)

IVSDGNGMNAWVAWR (*)

KIVSDGNGMNAWVAWR

NTDGSTDYGILQINSR (*)

 

P02787

Serotransferrin precursor TRFE_HUMAN

343 (16, 16)

ADRDQYELLCLDNTR

DCHLAQVPSHTVVAR

DDTVCLAK

DSAHGFLK

EDPQTFYYAVAVVK

EFQLFSSPHGK

EGYYGYTGAFR

FDEFFSEGCAPGSK

HQTVPQNTGGK

KPVEEYANCHLAR

LCMGSGLNLCEPNNK

MYLGYEYVTAIR

NPDPWAK

SVIPSDGPSVACVK

TAGWNIPMGLLYNK

WCAVSEHEATK

 

Q7LZQ2

Lysozyme C LYSC_AIXSP

248 (4, 0)

CELAAAMK (*)

GYSLGNWVCAAK (*)

IVSDGNGMNAWVAWR (*)

NTDGSTDYGILEINSR (*)

 

P02769

Serum albumin precursor ALBU_BOVIN

206 (16, 10)

ATEEQLK (*)

CCTESLVNR (*)

DAFLGSFLYEYSR

DDPHACYSTVFDK

DDSPDLPK

ECCHGDLLECADDR (*)

ETYGDMADCCEK

HLVDEPQNLIK

KQTALVELLK (*)

LCVLHEK (*)

LGEYGFQNALIVR (*)

LKPDPNTLCDEFK

LVVSTQTALA

TCVADESHAGCEK

TVMENFVAFVDK

YICDNQDTISSK

 

P00706

Lysozyme C-3 LYSC3_ANAPL

174 (3, 0)

CELAAAMK (*)

IVSDGDGMNAWVAWR (*)

NTDGSTDYGILEINSR (*)

 

P49064

Serum albumin precursor ALBU_FELCA

69 (5, 0)

ATEEQLK (*)

CCTESLVNR (*)

ECCHGDLLECADDR (*)

LCVLHEK (*)

LGEYGFQNALLVR (*)

 

P49822

Serum albumin precursor ALBU_CANFA

62 (4, 0)

ECCHGDLLECADDR (*)

KQTALVELLK (*)

LCVLHEK (*)

LGEYGFQNALLVR (*)

 

P07724

Serum albumin precursor ALBU_MOUSE

62 (3, 1)

ECCHGDLLECADDR (*)

LGEYGFQNAILVR (*)

VCLLHEK

 

P00711

Alpha-lactalbumin precursor LALBA_BOVIN

49 (1, 0)

VGINYWLAHK (*)

LALBA_BOSMU

LALBA_BUBBU

LALBA_CAPHI

LALBA_SHEEP

P02754

Beta-lactoglobulin precursor LACB_BOVIN

49 (3, 0)

IPAVFK (*)

TKIPAVFK (*)

TPEVDDEALEK (*)

LACB_BUBBU

  1. Peptides belonging to more than one protein are marked with an asterisk (*). Proteins mentioned in the right column are confirmed by an identical set of peptides. Reliable quantification is only possible by using unique peptides for analysis whose spectra contain reporter signals. (#i: number of identified peptides, #q: number of peptides for quantification)