MASCOT Search Results

Search metadata
User : Jennifer
E-mail : [email protected]
Search title : Andy1
MS data file : PRT1311_JBEI_1.mgf
Database : Ecoli-MetEng 20200720 (4,900 sequences; 1,661,431 residues)
Timestamp : 8 Sep 2025 at 17:17:19 GMT
Export

Not what you expected? Try the select summary.

Search parameters
Type of search : MS/MS Ion Search
Enzyme : GluC_Trypsin
Fixed modifications : Carbamidomethyl (C)
Variable modifications : Deamidated (NQ), Oxidation (M)
Mass values : Monoisotopic
Protein mass : Unrestricted
Peptide mass tolerance : ± 20 ppm
Fragment mass tolerance : ± 0.1 Da
Max missed cleavages : 1
Instrument type : ESI-FTICR
Number of queries : 4,450

Score distribution

Peptide score distribution

Peptide score distribution. Ions score is −10log(P), where P is the probability that the observed match is a random event. Individual ions scores > 19 indicate identity or extensive homology (p<0.05).

Protein score distribution for the first 50 proteins

[Deprecated] Score distribution for family members in the first 50 proteins. Protein scores are derived from ions scores as a non-probabilistic basis for ranking protein families.

Legend
Dupes Expect Rank U 1 2 Peptide
0.037 +2 GAYSLSLR significant
9 +1 GFFLFVEGGR top ranking
6.4e-005 +1 GSSIFGLAPGK significant and top ranking
1.3e-006 +1 X SSGTSYPDVLK peptide is found in all proteins in family member 1
6.2e-007 +1 / VCNYVSWIK peptide is found in some but not all proteins in family member 2
6.4e-005 +1 U GSSIFGLAPGK unique
+2 5.7e-005 +1 LNTLETEEWFFK peptide has two duplicates
0.18 +1 LNTLETEEWFFK duplicate peptide

Right-facing triangle (+) in the Dupes or Rank column indicates content that can be expanded by clicking on it. Down-facing triangle (-) indicates the content is expanded and can be collapsed. For more details about particular columns, see results format help.

Protein Family Summary

Filters

[help]

Show

Protein families 1–10 (out of 14)


Page: 1 2 Next 

+1

Accession Score Description
1 Q88JG7_PSEPK 2537 Fe-containing alcohol dehydrogenase OS=Pseudomonas putida (strain ATCC 47054 / DSM 6125 / CFBP 8728 / NCIMB 11950 / KT2440) OX=160488 GN=yiaY PE=3 SV=1

+2

Accession Score Description
1 Q88JG6_PSEPK 262 histidine kinase OS=Pseudomonas putida (strain ATCC 47054 / DSM 6125 / CFBP 8728 / NCIMB 11950 / KT2440) OX=160488 GN=PP_2683 PE=4 SV=2

+3

Accession Score Description
1 TOLB_ECOLI 239 Protein TolB OS=Escherichia coli (strain K12) GN=tolB PE=1 SV=1

+4

Accession Score Description
1 EFTU1_ECOLI 221 Elongation factor Tu 1 OS=Escherichia coli (strain K12) GN=tufA PE=1 SV=1

+5

Accession Score Description
1 TRYP_PIG 218 Trypsin OS=Sus scrofa PE=1 SV=1

-6

Accession Score Description
1 Q70I01_9ACTO 133 Borrelidin polyketide synthase, type I OS=Streptomyces parvulus GN=borA2 PE=4 SV=1
Score Mass Matches Sequences emPAI
6.1 Q70I01_9ACTO 133 166730 14 (6) 4 (2) 0.06
Borrelidin polyketide synthase, type I OS=Streptomyces parvulus GN=borA2 PE=4 SV=1
1 sameset of Q70I01_9ACTO
K4I6L4_ACP-AT-9ACTN 133 263142 9 (6) 3 (2) 0.03
Flv003-ACP-AT-FluC OS=Actinomadura vulgaris subsp. lanata OX=1233072 GN=fluC PE=4 SV=1

-14 peptide matches (8 non-duplicate, 6 duplicate)

Query Dupes Observed Mr(expt) Mr(calc) ppm  M Score Expect Rank U Peptide
3731 +1 521.9614 1562.8624 1562.8529 6.08 0 7 0.42 +1Score > 16 indicates identity K.SNIGHAQAAAGVAGVIK.M
3832   977.4979 1952.9812 1952.9705 5.52 0 27 0.0091 +1Score > 19 indicates identity U R.GVASSASGGLAFVFAGQGSQR.L
3834 +1 652.3359 1953.9859 1953.9545 16.1 0 34 0.002 +1Score > 20 indicates identity U R.GVASSASGGLAFVFAGQGSQR.L + Deamidated (NQ)
3835   652.3367 1953.9883 1953.9545 17.3 0 6 1 +1Score > 20 indicates identity
Score > 18 indicates homology
U R.GVASSASGGLAFVFAGQGSQR.L + Deamidated (NQ)
3982   1080.5184 2159.0222 2158.9960 12.2 1 6 1.2 +1Score > 19 indicates identity U R.EGGFLDGAGQFDAAFFGISPR.E + Deamidated (NQ)
D:\Xcalibur\Data\Jennifer\PRT1311 Andy\PRT1311_JBEI_1.raw

Score > 19 indicates identity

3983 +2 720.6837 2159.0293 2158.9960 15.4 1 10 0.49 -1Score > 19 indicates identity U R.EGGFLDGAGQFDAAFFGISPR.E + Deamidated (NQ)
2.12 1 10 0.49 1 RLMQMMPQVLPSPDAMGPK   + Deamidated (NQ); 2 Oxidation (M)
2.12 1 3 2.3 3 RLMQMMPQVLPSPDAMGPK   + Deamidated (NQ); 2 Oxidation (M)
2.12 1 3 2.4 4 RLMQMMPQVLPSPDAMGPK   + Deamidated (NQ); 2 Oxidation (M)
4186 +1 866.1358 2595.3856 2595.3486 14.3 0 53 9.8e-006 +1Score > 15 indicates identity U R.TVLSAAASLYVQGHPVDWAPLFPR.A + Deamidated (NQ)
4187 +1 649.8538 2595.3861 2595.3486 14.5 0 25 0.0062 +1Score > 15 indicates identity U R.TVLSAAASLYVQGHPVDWAPLFPR.A + Deamidated (NQ)

+7

Accession Score Description
1 DNAJ_ECOLI 102 Chaperone protein DnaJ OS=Escherichia coli (strain K12) GN=dnaJ PE=1 SV=3

+8

Accession Score Description
1 RECA_ECOLI 61 Protein RecA OS=Escherichia coli (strain K12) GN=recA PE=1 SV=2

+9

Accession Score Description
1 K2C1_HUMAN 52 Keratin, type II cytoskeletal 1 OS=Homo sapiens GN=KRT1 PE=1 SV=6

+10

Accession Score Description
1 YBBD_ECOLI 49 description
Page: 1 2 Next 

Not what you expected? Try the select summary.