MASCOT Search Results

Search metadata
User : Jennifer
E-mail : [email protected]
Search title : 2
MS data file : PRT1258_JBEI_Tube2_A2.mgf
Database : Ecoli-MetEng 20200720 (4,900 sequences; 1,661,431 residues)
Timestamp : 24 Jun 2025 at 18:35:06 GMT
Export

Not what you expected? Try the select summary.

Search parameters
Type of search : MS/MS Ion Search
Enzyme : 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 : 4,668

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 > 17 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 61–63 (out of 63)


Page: Previous 1 2 3 4 5 6 7 

+61

Accession Score Description
1 BFR_ECOLI 19 Bacterioferritin OS=Escherichia coli (strain K12) GN=bfr PE=1 SV=1

-62

Accession Score Description
1 KRT83_HUMAN 16 Keratin, type II cuticular Hb3 OS=Homo sapiens GN=KRT83 PE=1 SV=2
Score Mass Matches Sequences emPAI
62.1 KRT83_HUMAN 16 55928 2 (1) 2 (1) 0.06
Keratin, type II cuticular Hb3 OS=Homo sapiens GN=KRT83 PE=1 SV=2
2 samesets of KRT83_HUMAN
KRT81_HUMAN 16 56832 1 (1) 1 (1) 0.06
Keratin, type II cuticular Hb1 OS=Homo sapiens GN=KRT81 PE=1 SV=3
KRT86_HUMAN 16 55120 1 (1) 1 (1) 0.06
Keratin, type II cuticular Hb6 OS=Homo sapiens GN=KRT86 PE=1 SV=1

-2 peptide matches (2 non-duplicate, 0 duplicate)

Query Dupes Observed Mr(expt) Mr(calc) ppm  M Score Expect Rank U Peptide
2207   503.7364 1005.4582 1005.4736 -15.2 0 16 0.058 +1Score > 16 indicates identity U K.QDMACLIR.E
2383   568.7909 1135.5672 1135.5873 -17.7 1 9 0.68 +4Score > 20 indicates identity K.KYEEEVALR.A

+63

Accession Score Description
1 POTD_ECOLI 15 Spermidine/putrescine-binding periplasmic protein OS=Escherichia coli (strain K12) GN=potD PE=1 SV=1
Page: Previous 1 2 3 4 5 6 7 

Not what you expected? Try the select summary.