MASCOT Search Results

Search metadata
User : Jennifer
E-mail : [email protected]
Search title : Rita1 sp
MS data file : PRT1270_T-BRSC_1_20250714114344.mgf
Database : SwissProt 57.15 (515,203 sequences; 181,334,896 residues)
Timestamp : 12 Aug 2025 at 22:50:29 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 > 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 41–50 (out of 230)


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+41

Accession Score Description
1 RS4_PSEP1 144 30S ribosomal protein S4 OS=Pseudomonas putida (strain F1 / ATCC 700007) GN=rpsD PE=3 SV=1

-42

Accession Score Description
1 IF2_PSEE4 143 Translation initiation factor IF-2 OS=Pseudomonas entomophila (strain L48) GN=infB PE=3 SV=1
Score Mass Matches Sequences emPAI
42.1 IF2_PSEE4 143 91973 6 (3) 6 (3) 0.08
Translation initiation factor IF-2 OS=Pseudomonas entomophila (strain L48) GN=infB PE=3 SV=1
4 samesets of IF2_PSEE4
IF2_PSEP1 143 91620 5 (3) 5 (3) 0.08
Translation initiation factor IF-2 OS=Pseudomonas putida (strain F1 / ATCC 700007) GN=infB PE=3 SV=1
IF2_PSEPG 143 91294 5 (3) 5 (3) 0.08
Translation initiation factor IF-2 OS=Pseudomonas putida (strain GB-1) GN=infB PE=3 SV=1
IF2_PSEPK 143 91576 5 (3) 5 (3) 0.08
Translation initiation factor IF-2 OS=Pseudomonas putida (strain KT2440) GN=infB PE=3 SV=1
IF2_PSEPW 143 91289 5 (3) 5 (3) 0.08
Translation initiation factor IF-2 OS=Pseudomonas putida (strain W619) GN=infB PE=3 SV=1

-6 peptide matches (6 non-duplicate, 0 duplicate)

Query Dupes Observed Mr(expt) Mr(calc) ppm  M Score Expect Rank U Peptide
682   400.7674 799.5202 799.5167 4.41 0 20 0.91 +1Score > 36 indicates identity
Score > 32 indicates homology
U K.TLNIVLK.T
1114   490.7776 979.5406 979.5338 6.96 0 39 0.048 +1Score > 39 indicates identity U K.TSLLDYIR.R
2060   720.4216 1438.8286 1438.8144 9.91 0 73 1.1e-005 +1Score > 36 indicates identity U R.GPVATILVQDGTLR.Q
2317   522.2715 1563.7927 1563.7906 1.30 0 23 0.54 +1Score > 41 indicates identity
Score > 33 indicates homology
U R.NQHGFQNPTGPVIR.D
2795   887.4505 1772.8864 1772.8904 -2.25 1 4 1.4 +4Score > 40 indicates identity
Score > 18 indicates homology
U E.ALQGSLSSLGNDEVQVR.V + Deamidated (NQ)
4272   973.8608 2918.5606 2918.5138 16.0 1 98 3.1e-009 +1Score > 34 indicates identity
Score > 25 indicates homology
U R.VIGGGVGGITESDANLALASNAVLFGFNVR.A + Deamidated (NQ)

3 subsets and intersections (267 subset proteins in total)

Score Mass Subset of
IF2_CAMC5 74 99413 42.1
Translation initiation factor IF-2 OS=Campylobacter curvus (strain 525.92) GN=infB PE=3 SV=1
2 samesets of IF2_CAMC5
IF2_CAMHC 74 100767
Translation initiation factor IF-2 OS=Campylobacter hominis (strain ATCC BAA-381 / LMG 19568 / NCTC 13146 / CH001A) GN=infB PE=3 SV=1
IF2_CAMLR 74 96725
Translation initiation factor IF-2 OS=Campylobacter lari (strain RM2100 / D67 / ATCC BAA-1060) GN=infB PE=3 SV=1
IF2_CYAP4 73 108559 42.1
Translation initiation factor IF-2 OS=Cyanothece sp. (strain PCC 7425 / ATCC 29141) GN=infB PE=3 SV=1
10 samesets of IF2_CYAP4
IF2_MICAN 73 109614
Translation initiation factor IF-2 OS=Microcystis aeruginosa (strain NIES-843) GN=infB PE=3 SV=1
IF2_SYNE7 73 110858
Translation initiation factor IF-2 OS=Synechococcus elongatus (strain PCC 7942) GN=infB PE=3 SV=1
IF2_SYNJA 73 111852
Translation initiation factor IF-2 OS=Synechococcus sp. (strain JA-3-3Ab) GN=infB PE=3 SV=1
IF2_SYNJB 73 113485
Translation initiation factor IF-2 OS=Synechococcus sp. GN=infB PE=3 SV=1
IF2_SYNP6 73 110787
Translation initiation factor IF-2 OS=Synechococcus sp. (strain ATCC 27144 / PCC 6301 / SAUG 1402/1) GN=infB PE=3 SV=1
IF2_CYAP7 73 121749
Translation initiation factor IF-2 OS=Cyanothece sp. (strain PCC 7424) GN=infB PE=3 SV=1
IF2_THEEB 73 104469
Translation initiation factor IF-2 OS=Thermosynechococcus elongatus (strain BP-1) GN=infB PE=3 SV=1
IF2_SYNP2 73 105884
Translation initiation factor IF-2 OS=Synechococcus sp. (strain ATCC 27264 / PCC 7002 / PR-6) GN=infB PE=3 SV=1
IF2_SYNPW 73 119022
Translation initiation factor IF-2 OS=Synechococcus sp. (strain WH7803) GN=infB PE=3 SV=1
IF2_SYNS3 73 118793
Translation initiation factor IF-2 OS=Synechococcus sp. (strain CC9311) GN=infB PE=3 SV=1
IF2C_EUGGR 39 88047 42.1
Translation initiation factor IF-2, chloroplastic (Fragment) OS=Euglena gracilis GN=INFB PE=2 SV=1
+252 samesets of IF2C_EUGGR

+43

Accession Score Description
Family member distances as a dendrogram 1 RL20_PSEE4 140 50S ribosomal protein L20 OS=Pseudomonas entomophila (strain L48) GN=rplT PE=3 SV=1
2 RL20_POLNS 61 50S ribosomal protein L20 OS=Polynucleobacter necessarius (strain STIR1) GN=rplT PE=3 SV=1

+44

Accession Score Description
1 ODO2_PSEPU 132 Dihydrolipoyllysine-residue succinyltransferase component of 2-oxoglutarate dehydrogenase complex (Fragment) OS=Pseudomonas putida GN=sucB PE=3 SV=2

+45

Accession Score Description
1 RL13_PSEP1 132 50S ribosomal protein L13 OS=Pseudomonas putida (strain F1 / ATCC 700007) GN=rplM PE=3 SV=1

+46

Accession Score Description
1 EXBB_PSEPU 129 Biopolymer transport protein exbB OS=Pseudomonas putida GN=exbB PE=3 SV=1

+47

Accession Score Description
1 PCXB_PSEPU 126 Protocatechuate 3,4-dioxygenase beta chain OS=Pseudomonas putida GN=pcaH PE=1 SV=3

+48

Accession Score Description
1 AMPA_PSEPG 123 Probable cytosol aminopeptidase OS=Pseudomonas putida (strain GB-1) GN=pepA PE=3 SV=1

+49

Accession Score Description
1 METN1_PSEPK 122 Methionine import ATP-binding protein metN 1 OS=Pseudomonas putida (strain KT2440) GN=metN1 PE=3 SV=1

+50

Accession Score Description
1 ACON2_PSEAE 113 Aconitate hydratase 2 OS=Pseudomonas aeruginosa GN=acnB PE=3 SV=1
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