MASCOT Search Results

Search metadata
User : Jennifer
E-mail : [email protected]
Search title : Andy2
MS data file : PRT1311_JBEI_2.mgf
Database : Ecoli-MetEng 20200720 (4,900 sequences; 1,661,431 residues)
Timestamp : 8 Sep 2025 at 17:18:13 GMT
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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 : 4,460

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

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Protein families 11–20 (out of 20)


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+11

Accession Score Description
1 UGPC_ECOLI 25 sn-glycerol-3-phosphate import ATP-binding protein UgpC OS=Escherichia coli (strain K12) GN=ugpC PE=1 SV=3

-12

Accession Score Description
1 WECD_ECOLI 25 dTDP-fucosamine acetyltransferase OS=Escherichia coli (strain K12) GN=wecD PE=3 SV=3
Score Mass Matches Sequences emPAI
12.1 WECD_ECOLI 25 24262 1 (1) 1 (1) 0.10
dTDP-fucosamine acetyltransferase OS=Escherichia coli (strain K12) GN=wecD PE=3 SV=3

-1 peptide matches (1 non-duplicate, 0 duplicate)

Query Dupes Observed Mr(expt) Mr(calc) ppm  M Score Expect Rank U Peptide
3225   350.2305 698.4464 698.4439 3.66 0 25 0.006 +1Score > 15 indicates identity U R.IGLLAGR.G

+13

Accession Score Description
1 TGT_ECOLI 25 description

+14

Accession Score Description
1 A4XUL5_PSEMY 23 Catalase OS=Pseudomonas mendocina (strain ymp) GN=Pmen_2273 PE=3 SV=1

+15

Accession Score Description
1 GLTB_ECOLI 22 Glutamate synthase [NADPH] large chain OS=Escherichia coli (strain K12) GN=gltB PE=1 SV=3

+16

Accession Score Description
1 GLPD_ECOLI 21 Aerobic glycerol-3-phosphate dehydrogenase OS=Escherichia coli (strain K12) GN=glpD PE=1 SV=3

+17

Accession Score Description
1 NIKA_ECOLI 21 description

+18

Accession Score Description
1 OPGG_ECOLI 21 Glucans biosynthesis protein G OS=Escherichia coli (strain K12) GN=mdoG PE=1 SV=1

+19

Accession Score Description
1 FTSW_ECOLI 15 Lipid II flippase FtsW OS=Escherichia coli (strain K12) GN=ftsW PE=1 SV=1

+20

Accession Score Description
1 GLTP_ECOLI 14 description
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