MASCOT Search Results

Search metadata
User : Jennifer
E-mail : [email protected]
Search title : Rita1
MS data file : PRT1270_T-BRSC_1_20250714114344.mgf
Database : P-putida 20180924 (5,556 sequences; 1,892,173 residues)
Timestamp : 12 Aug 2025 at 22:47:09 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 : 4,938

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 301–310 (out of 313)


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+301

Accession Score Description
1 Q88CB4_PSEPK 23 Cytochrome c5 OS=Pseudomonas putida (strain KT2440) GN=PP_5267 PE=4 SV=1

+302

Accession Score Description
1 Q88QC1_PSEPK 22 Uncharacterized protein OS=Pseudomonas putida (strain KT2440) GN=PP_0573 PE=4 SV=1

+303

Accession Score Description
1 Q88EB3_PSEPK 21 RNA polymerase sigma-70 factor, ECF subfamily OS=Pseudomonas putida (strain KT2440) GN=PP_4553 PE=4 SV=1

+304

Accession Score Description
1 Q88P43_PSEPK 21 6-phosphogluconate dehydratase OS=Pseudomonas putida (strain KT2440) GN=edd PE=4 SV=1

+305

Accession Score Description
1 A0A379PS61_PSEPU 19 Heat shock protein Hsp20 OS=Pseudomonas putida OX=303 GN=ibpB PE=3 SV=1

+306

Accession Score Description
1 Q88KI8_PSEPK 19 Lon protease OS=Pseudomonas putida (strain KT2440) GN=lon-2 PE=2 SV=1

+307

Accession Score Description
1 Q88DS8_PSEPK 19 Type I restriction-modification system, M subunit OS=Pseudomonas putida (strain KT2440) GN=hsdM PE=4 SV=1

+308

Accession Score Description
1 Q88CL6_PSEPK 18 Penicillin amidase family protein OS=Pseudomonas putida (strain KT2440) GN=PP_5164 PE=4 SV=1

+309

Accession Score Description
1 Q88QP6_PSEPK 18 Transcription termination/antitermination protein NusG OS=Pseudomonas putida (strain KT2440) GN=nusG PE=3 SV=1

-310

Accession Score Description
1 Q88JT4_PSEPK 17 Antibiotic biosynthesis protein, putative OS=Pseudomonas putida (strain KT2440) GN=PP_2563 PE=4 SV=1
Score Mass Matches Sequences emPAI
310.1 Q88JT4_PSEPK 17 101542 10 (1) 8 (1) 0.02
Antibiotic biosynthesis protein, putative OS=Pseudomonas putida (strain KT2440) GN=PP_2563 PE=4 SV=1

-10 peptide matches (10 non-duplicate, 0 duplicate)

Query Dupes Observed Mr(expt) Mr(calc) ppm  M Score Expect Rank U Peptide
261   559.3227 558.3154 558.3125 5.18 1 17 0.47 +6Score > 26 indicates identity U K.AIEAR.G
367   645.3320 644.3247 644.3354 -16.6 1 10 0.64 +4Score > 21 indicates identity U E.ARGDAR.T
370   324.1667 646.3188 646.3286 -15.1 0 8 1.9 +9Score > 24 indicates identity U R.ADSQVK.I
371   647.3278 646.3205 646.3286 -12.5 0 10 1.4 +7Score > 24 indicates identity U R.ADSQVK.I
693   402.2176 802.4206 802.4337 -16.3 0 3 6 +9Score > 24 indicates identity U E.ALQAFPR.Q + Deamidated (NQ)
1167   503.2969 1004.5792 1004.5767 2.55 1 4 1.1 +1Score > 17 indicates identity U E.ALIGHLPER.W
1399   374.5374 1120.5904 1120.5877 2.42 1 1 2.1 +5Score > 20 indicates identity
Score > 17 indicates homology
U R.FLGRADSQVK.I + Deamidated (NQ)
1551   591.3495 1180.6844 1180.6928 -7.06 1 14 0.089 +1Score > 16 indicates identity U R.ILQVPRLDAR.L + Deamidated (NQ)
1552   1181.6923 1180.6850 1180.6928 -6.57 1 17 0.045 +1Score > 16 indicates identity U R.ILQVPRLDAR.L + Deamidated (NQ)
2999   946.5106 1891.0066 1891.0203 -7.23 1 2 2.9 +2Score > 19 indicates identity U E.ALQAFPRQPVALPAVSPE.Q + Deamidated (NQ)

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