MASCOT Search Results

Search metadata
User : Jennifer
E-mail : [email protected]
Search title : Rita4 sp
MS data file : PRT1270_T-BRSC_4_20250714120925.mgf
Database : SwissProt 57.15 (515,203 sequences; 181,334,896 residues)
Timestamp : 12 Aug 2025 at 23:41:34 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 : 4,786

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 > 39 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 61–70 (out of 182)


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+61

Accession Score Description
1 SUCD_PSEAE 75 Succinyl-CoA ligase [ADP-forming] subunit alpha OS=Pseudomonas aeruginosa GN=sucD PE=3 SV=2

+62

Accession Score Description
1 RS20_PSE14 75 30S ribosomal protein S20 OS=Pseudomonas syringae pv. phaseolicola (strain 1448A / Race 6) GN=rpsT PE=3 SV=1

+63

Accession Score Description
1 RRF_ACTSZ 75 Ribosome-recycling factor OS=Actinobacillus succinogenes (strain ATCC 55618 / 130Z) GN=frr PE=3 SV=1

+64

Accession Score Description
1 RL29_PSE14 75 50S ribosomal protein L29 OS=Pseudomonas syringae pv. phaseolicola (strain 1448A / Race 6) GN=rpmC PE=3 SV=1

+65

Accession Score Description
1 OPRI_PSEAE 74 Major outer membrane lipoprotein OS=Pseudomonas aeruginosa GN=oprI PE=3 SV=1

+66

Accession Score Description
1 RL16_PSEP1 74 50S ribosomal protein L16 OS=Pseudomonas putida (strain F1 / ATCC 700007) GN=rplP PE=3 SV=1

+67

Accession Score Description
1 CISY_PSEAE 73 Citrate synthase OS=Pseudomonas aeruginosa GN=gltA PE=3 SV=2

+68

Accession Score Description
1 IF2_CAMHC 71 Translation initiation factor IF-2 OS=Campylobacter hominis (strain ATCC BAA-381 / LMG 19568 / NCTC 13146 / CH001A) GN=infB PE=3 SV=1

-69

Accession Score Description
1 RL21_PSEE4 71 50S ribosomal protein L21 OS=Pseudomonas entomophila (strain L48) GN=rplU PE=3 SV=1
Score Mass Matches Sequences emPAI
69.1 RL21_PSEE4 71 11596 8 (3) 4 (2) 0.46
50S ribosomal protein L21 OS=Pseudomonas entomophila (strain L48) GN=rplU PE=3 SV=1
4 samesets of RL21_PSEE4
RL21_PSEP1 71 11624 8 (3) 4 (2) 0.46
50S ribosomal protein L21 OS=Pseudomonas putida (strain F1 / ATCC 700007) GN=rplU PE=3 SV=1
RL21_PSEPG 71 11624 8 (3) 4 (2) 0.46
50S ribosomal protein L21 OS=Pseudomonas putida (strain GB-1) GN=rplU PE=3 SV=1
RL21_PSEPK 71 11624 8 (3) 4 (2) 0.46
50S ribosomal protein L21 OS=Pseudomonas putida (strain KT2440) GN=rplU PE=3 SV=2
RL21_PSEPW 71 11638 8 (3) 4 (2) 0.46
50S ribosomal protein L21 OS=Pseudomonas putida (strain W619) GN=rplU PE=3 SV=1

-8 peptide matches (4 non-duplicate, 4 duplicate)

Query Dupes Observed Mr(expt) Mr(calc) ppm  M Score Expect Rank U Peptide
318 +1 602.3526 601.3453 601.3435 3.00 0 19 1.6 +6Score > 45 indicates identity
Score > 34 indicates homology
K.ITGIQA.-
1058 +1 476.2551 950.4956 950.4862 9.98 1 29 0.31 +1Score > 40 indicates identity
Score > 37 indicates homology
R.QWFTEIK.I
1151 +1 497.7842 993.5538 993.5495 4.38 0 31 0.013 +1Score > 38 indicates identity
Score > 25 indicates homology
U M.SYAVIVTGGK.Q
1274 +1 522.2977 1042.5808 1042.5771 3.58 1 58 0.00045 +1Score > 40 indicates identity
Score > 37 indicates homology
U K.VVAEVVSQGR.H

1 subset or intersection (3 subset proteins in total)

Score Mass Subset of
RL21_HAES1 69 11492 69.1
50S ribosomal protein L21 OS=Haemophilus somnus (strain 129Pt) GN=rplU PE=3 SV=1
2 samesets of RL21_HAES1
RL21_PSEMY 69 11605
50S ribosomal protein L21 OS=Pseudomonas mendocina (strain ymp) GN=rplU PE=3 SV=1
RL21_HAES2 69 11492
50S ribosomal protein L21 OS=Haemophilus somnus (strain 2336) GN=rplU PE=3 SV=1

+70

Accession Score Description
1 FLAA_VIBPA 71 Polar flagellin A OS=Vibrio parahaemolyticus GN=flaA PE=3 SV=1
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