Amino acid dipepetide frequency for Thermopolyspora flexuosa

Apart from single amino acid frequencies one can also calculate so called amino acid dipeptide frequency.

There is 400 possibilites (441 if we consider Xaa as additional 21st amino acid representing all non-standard or unknown amino acids). Thus, if the dipeptides would be present randomly in proteins each amino acid dipeptide should be present with 0.25% frequency. As it is not the case in the nature, for better visablity all more than expected dipepetides are marked by red, and those which are underrepresented are marked by blue in the table.

All values are presented as per milles (‰), therefore need to be multiplied by 10-3.

For more information see sequence space article on Wikipedia.

AlaCysAspGluPheGlyHisIleLysLeuMetAsnProGlnArgSerThrValTrpTyrXaa
Ala
22.544AlaAla: 22.544 ± 0.216
1.217AlaCys: 1.217 ± 0.029
7.831AlaAsp: 7.831 ± 0.079
9.841AlaGlu: 9.841 ± 0.103
3.627AlaPhe: 3.627 ± 0.046
12.895AlaGly: 12.895 ± 0.114
2.496AlaHis: 2.496 ± 0.043
4.871AlaIle: 4.871 ± 0.051
2.873AlaLys: 2.873 ± 0.049
13.81AlaLeu: 13.81 ± 0.13
2.543AlaMet: 2.543 ± 0.039
2.018AlaAsn: 2.018 ± 0.037
6.769AlaPro: 6.769 ± 0.093
3.268AlaGln: 3.268 ± 0.047
11.714AlaArg: 11.714 ± 0.1
5.117AlaSer: 5.117 ± 0.06
7.03AlaThr: 7.03 ± 0.085
11.927AlaVal: 11.927 ± 0.099
1.893AlaTrp: 1.893 ± 0.035
2.782AlaTyr: 2.782 ± 0.048
0.0AlaXaa: 0.0 ± 0.0
Cys
1.08CysAla: 1.08 ± 0.026
0.108CysCys: 0.108 ± 0.008
0.542CysAsp: 0.542 ± 0.018
0.428CysGlu: 0.428 ± 0.015
0.212CysPhe: 0.212 ± 0.011
1.026CysGly: 1.026 ± 0.028
0.207CysHis: 0.207 ± 0.011
0.175CysIle: 0.175 ± 0.011
0.11CysLys: 0.11 ± 0.008
0.78CysLeu: 0.78 ± 0.023
0.127CysMet: 0.127 ± 0.01
0.138CysAsn: 0.138 ± 0.011
0.548CysPro: 0.548 ± 0.019
0.145CysGln: 0.145 ± 0.009
0.729CysArg: 0.729 ± 0.023
0.393CysSer: 0.393 ± 0.016
0.457CysThr: 0.457 ± 0.016
0.677CysVal: 0.677 ± 0.021
0.095CysTrp: 0.095 ± 0.008
0.18CysTyr: 0.18 ± 0.009
0.0CysXaa: 0.0 ± 0.0
Asp
7.094AspAla: 7.094 ± 0.075
0.38AspCys: 0.38 ± 0.016
3.363AspAsp: 3.363 ± 0.06
4.055AspGlu: 4.055 ± 0.047
1.421AspPhe: 1.421 ± 0.028
5.855AspGly: 5.855 ± 0.074
1.318AspHis: 1.318 ± 0.03
1.848AspIle: 1.848 ± 0.037
0.941AspLys: 0.941 ± 0.028
6.163AspLeu: 6.163 ± 0.072
0.789AspMet: 0.789 ± 0.023
0.825AspAsn: 0.825 ± 0.028
4.932AspPro: 4.932 ± 0.057
1.214AspGln: 1.214 ± 0.028
5.479AspArg: 5.479 ± 0.06
1.742AspSer: 1.742 ± 0.038
2.423AspThr: 2.423 ± 0.041
4.691AspVal: 4.691 ± 0.055
0.854AspTrp: 0.854 ± 0.025
1.07AspTyr: 1.07 ± 0.025
0.0AspXaa: 0.0 ± 0.0
Glu
7.909GluAla: 7.909 ± 0.088
0.428GluCys: 0.428 ± 0.015
2.729GluAsp: 2.729 ± 0.04
4.057GluGlu: 4.057 ± 0.075
1.596GluPhe: 1.596 ± 0.033
4.151GluGly: 4.151 ± 0.06
1.588GluHis: 1.588 ± 0.033
2.819GluIle: 2.819 ± 0.051
1.333GluLys: 1.333 ± 0.032
7.132GluLeu: 7.132 ± 0.081
0.987GluMet: 0.987 ± 0.024
1.077GluAsn: 1.077 ± 0.028
3.877GluPro: 3.877 ± 0.056
2.039GluGln: 2.039 ± 0.038
6.773GluArg: 6.773 ± 0.068
2.312GluSer: 2.312 ± 0.036
2.922GluThr: 2.922 ± 0.046
5.128GluVal: 5.128 ± 0.061
0.879GluTrp: 0.879 ± 0.024
1.245GluTyr: 1.245 ± 0.028
0.0GluXaa: 0.0 ± 0.0
Phe
3.779PheAla: 3.779 ± 0.047
0.266PheCys: 0.266 ± 0.013
1.896PheAsp: 1.896 ± 0.035
1.443PheGlu: 1.443 ± 0.034
0.841PhePhe: 0.841 ± 0.025
2.975PheGly: 2.975 ± 0.052
0.592PheHis: 0.592 ± 0.02
0.803PheIle: 0.803 ± 0.021
0.451PheLys: 0.451 ± 0.018
2.649PheLeu: 2.649 ± 0.047
0.381PheMet: 0.381 ± 0.015
0.531PheAsn: 0.531 ± 0.02
1.422PhePro: 1.422 ± 0.03
0.606PheGln: 0.606 ± 0.022
1.989PheArg: 1.989 ± 0.032
1.249PheSer: 1.249 ± 0.032
1.856PheThr: 1.856 ± 0.034
2.226PheVal: 2.226 ± 0.04
0.39PheTrp: 0.39 ± 0.019
0.574PheTyr: 0.574 ± 0.018
0.0PheXaa: 0.0 ± 0.0
Gly
10.29GlyAla: 10.29 ± 0.103
0.82GlyCys: 0.82 ± 0.027
5.267GlyAsp: 5.267 ± 0.072
5.607GlyGlu: 5.607 ± 0.067
2.734GlyPhe: 2.734 ± 0.048
8.871GlyGly: 8.871 ± 0.1
2.201GlyHis: 2.201 ± 0.043
3.431GlyIle: 3.431 ± 0.049
2.218GlyLys: 2.218 ± 0.049
9.283GlyLeu: 9.283 ± 0.084
2.069GlyMet: 2.069 ± 0.04
1.645GlyAsn: 1.645 ± 0.036
5.723GlyPro: 5.723 ± 0.077
2.191GlyGln: 2.191 ± 0.053
8.897GlyArg: 8.897 ± 0.084
4.251GlySer: 4.251 ± 0.068
5.637GlyThr: 5.637 ± 0.071
8.002GlyVal: 8.002 ± 0.07
1.527GlyTrp: 1.527 ± 0.031
2.357GlyTyr: 2.357 ± 0.047
0.0GlyXaa: 0.0 ± 0.0
His
2.628HisAla: 2.628 ± 0.048
0.195HisCys: 0.195 ± 0.012
1.207HisAsp: 1.207 ± 0.027
1.259HisGlu: 1.259 ± 0.029
0.563HisPhe: 0.563 ± 0.019
2.15HisGly: 2.15 ± 0.041
0.558HisHis: 0.558 ± 0.019
0.722HisIle: 0.722 ± 0.022
0.319HisLys: 0.319 ± 0.013
2.408HisLeu: 2.408 ± 0.04
0.329HisMet: 0.329 ± 0.015
0.357HisAsn: 0.357 ± 0.014
1.743HisPro: 1.743 ± 0.036
0.503HisGln: 0.503 ± 0.018
2.081HisArg: 2.081 ± 0.041
0.776HisSer: 0.776 ± 0.022
1.072HisThr: 1.072 ± 0.028
1.79HisVal: 1.79 ± 0.03
0.291HisTrp: 0.291 ± 0.013
0.439HisTyr: 0.439 ± 0.018
0.0HisXaa: 0.0 ± 0.0
Ile
5.677IleAla: 5.677 ± 0.058
0.359IleCys: 0.359 ± 0.015
2.613IleAsp: 2.613 ± 0.04
2.479IleGlu: 2.479 ± 0.038
0.903IlePhe: 0.903 ± 0.029
3.897IleGly: 3.897 ± 0.053
0.675IleHis: 0.675 ± 0.019
1.243IleIle: 1.243 ± 0.033
0.822IleLys: 0.822 ± 0.023
2.94IleLeu: 2.94 ± 0.044
0.609IleMet: 0.609 ± 0.021
0.81IleAsn: 0.81 ± 0.023
2.098IlePro: 2.098 ± 0.038
0.772IleGln: 0.772 ± 0.024
3.052IleArg: 3.052 ± 0.046
1.687IleSer: 1.687 ± 0.038
2.46IleThr: 2.46 ± 0.048
3.486IleVal: 3.486 ± 0.049
0.444IleTrp: 0.444 ± 0.017
0.666IleTyr: 0.666 ± 0.022
0.0IleXaa: 0.0 ± 0.0
Lys
2.68LysAla: 2.68 ± 0.044
0.106LysCys: 0.106 ± 0.008
1.066LysAsp: 1.066 ± 0.028
1.259LysGlu: 1.259 ± 0.031
0.381LysPhe: 0.381 ± 0.015
1.726LysGly: 1.726 ± 0.042
0.385LysHis: 0.385 ± 0.017
0.955LysIle: 0.955 ± 0.028
0.601LysLys: 0.601 ± 0.026
1.715LysLeu: 1.715 ± 0.036
0.333LysMet: 0.333 ± 0.014
0.444LysAsn: 0.444 ± 0.019
1.297LysPro: 1.297 ± 0.031
0.513LysGln: 0.513 ± 0.016
1.598LysArg: 1.598 ± 0.034
0.884LysSer: 0.884 ± 0.025
1.049LysThr: 1.049 ± 0.029
1.992LysVal: 1.992 ± 0.042
0.257LysTrp: 0.257 ± 0.013
0.393LysTyr: 0.393 ± 0.016
0.0LysXaa: 0.0 ± 0.0
Leu
16.338LeuAla: 16.338 ± 0.133
0.841LeuCys: 0.841 ± 0.023
6.13LeuAsp: 6.13 ± 0.065
5.269LeuGlu: 5.269 ± 0.059
2.57LeuPhe: 2.57 ± 0.052
9.268LeuGly: 9.268 ± 0.087
2.018LeuHis: 2.018 ± 0.038
3.748LeuIle: 3.748 ± 0.053
1.768LeuLys: 1.768 ± 0.038
11.203LeuLeu: 11.203 ± 0.115
1.44LeuMet: 1.44 ± 0.031
1.627LeuAsn: 1.627 ± 0.03
6.423LeuPro: 6.423 ± 0.069
1.94LeuGln: 1.94 ± 0.034
9.688LeuArg: 9.688 ± 0.092
4.624LeuSer: 4.624 ± 0.059
6.109LeuThr: 6.109 ± 0.072
9.127LeuVal: 9.127 ± 0.087
1.26LeuTrp: 1.26 ± 0.031
1.807LeuTyr: 1.807 ± 0.032
0.0LeuXaa: 0.0 ± 0.0
Met
2.27MetAla: 2.27 ± 0.044
0.137MetCys: 0.137 ± 0.009
0.761MetAsp: 0.761 ± 0.022
0.74MetGlu: 0.74 ± 0.021
0.488MetPhe: 0.488 ± 0.019
1.235MetGly: 1.235 ± 0.028
0.344MetHis: 0.344 ± 0.014
0.817MetIle: 0.817 ± 0.026
0.366MetLys: 0.366 ± 0.016
1.859MetLeu: 1.859 ± 0.034
0.262MetMet: 0.262 ± 0.012
0.37MetAsn: 0.37 ± 0.016
1.192MetPro: 1.192 ± 0.029
0.387MetGln: 0.387 ± 0.015
1.703MetArg: 1.703 ± 0.033
1.193MetSer: 1.193 ± 0.025
1.432MetThr: 1.432 ± 0.03
1.278MetVal: 1.278 ± 0.033
0.204MetTrp: 0.204 ± 0.01
0.27MetTyr: 0.27 ± 0.013
0.0MetXaa: 0.0 ± 0.0
Asn
2.143AsnAla: 2.143 ± 0.03
0.162AsnCys: 0.162 ± 0.011
0.843AsnAsp: 0.843 ± 0.023
0.836AsnGlu: 0.836 ± 0.024
0.464AsnPhe: 0.464 ± 0.017
1.827AsnGly: 1.827 ± 0.042
0.373AsnHis: 0.373 ± 0.016
0.653AsnIle: 0.653 ± 0.021
0.347AsnLys: 0.347 ± 0.015
1.875AsnLeu: 1.875 ± 0.037
0.285AsnMet: 0.285 ± 0.014
0.372AsnAsn: 0.372 ± 0.022
1.48AsnPro: 1.48 ± 0.032
0.455AsnGln: 0.455 ± 0.019
1.485AsnArg: 1.485 ± 0.031
0.63AsnSer: 0.63 ± 0.02
0.912AsnThr: 0.912 ± 0.024
1.512AsnVal: 1.512 ± 0.032
0.267AsnTrp: 0.267 ± 0.012
0.345AsnTyr: 0.345 ± 0.017
0.0AsnXaa: 0.0 ± 0.0
Pro
8.851ProAla: 8.851 ± 0.1
0.388ProCys: 0.388 ± 0.018
4.707ProAsp: 4.707 ± 0.057
4.945ProGlu: 4.945 ± 0.061
1.546ProPhe: 1.546 ± 0.024
7.346ProGly: 7.346 ± 0.081
1.323ProHis: 1.323 ± 0.03
2.01ProIle: 2.01 ± 0.04
1.266ProLys: 1.266 ± 0.037
5.305ProLeu: 5.305 ± 0.059
0.972ProMet: 0.972 ± 0.029
1.005ProAsn: 1.005 ± 0.025
4.765ProPro: 4.765 ± 0.094
1.554ProGln: 1.554 ± 0.039
4.784ProArg: 4.784 ± 0.064
3.138ProSer: 3.138 ± 0.055
2.992ProThr: 2.992 ± 0.052
5.474ProVal: 5.474 ± 0.055
0.966ProTrp: 0.966 ± 0.023
1.679ProTyr: 1.679 ± 0.036
0.0ProXaa: 0.0 ± 0.0
Gln
3.622GlnAla: 3.622 ± 0.054
0.149GlnCys: 0.149 ± 0.01
1.044GlnAsp: 1.044 ± 0.023
1.371GlnGlu: 1.371 ± 0.029
0.542GlnPhe: 0.542 ± 0.021
2.078GlnGly: 2.078 ± 0.041
0.438GlnHis: 0.438 ± 0.015
1.128GlnIle: 1.128 ± 0.027
0.456GlnLys: 0.456 ± 0.017
2.156GlnLeu: 2.156 ± 0.036
0.429GlnMet: 0.429 ± 0.018
0.443GlnAsn: 0.443 ± 0.018
1.403GlnPro: 1.403 ± 0.042
0.854GlnGln: 0.854 ± 0.032
2.242GlnArg: 2.242 ± 0.04
0.882GlnSer: 0.882 ± 0.02
1.099GlnThr: 1.099 ± 0.026
2.415GlnVal: 2.415 ± 0.038
0.373GlnTrp: 0.373 ± 0.017
0.447GlnTyr: 0.447 ± 0.02
0.0GlnXaa: 0.0 ± 0.0
Arg
10.872ArgAla: 10.872 ± 0.111
0.676ArgCys: 0.676 ± 0.022
4.831ArgAsp: 4.831 ± 0.061
5.634ArgGlu: 5.634 ± 0.058
2.705ArgPhe: 2.705 ± 0.041
6.347ArgGly: 6.347 ± 0.075
2.354ArgHis: 2.354 ± 0.043
3.949ArgIle: 3.949 ± 0.046
1.72ArgLys: 1.72 ± 0.037
10.644ArgLeu: 10.644 ± 0.103
2.06ArgMet: 2.06 ± 0.034
1.634ArgAsn: 1.634 ± 0.028
6.188ArgPro: 6.188 ± 0.077
2.272ArgGln: 2.272 ± 0.035
10.337ArgArg: 10.337 ± 0.105
3.904ArgSer: 3.904 ± 0.05
5.002ArgThr: 5.002 ± 0.059
7.025ArgVal: 7.025 ± 0.07
1.464ArgTrp: 1.464 ± 0.034
2.203ArgTyr: 2.203 ± 0.038
0.0ArgXaa: 0.0 ± 0.0
Ser
5.533SerAla: 5.533 ± 0.063
0.38SerCys: 0.38 ± 0.015
2.098SerAsp: 2.098 ± 0.035
2.038SerGlu: 2.038 ± 0.043
1.301SerPhe: 1.301 ± 0.027
5.258SerGly: 5.258 ± 0.075
0.827SerHis: 0.827 ± 0.024
1.525SerIle: 1.525 ± 0.033
0.803SerLys: 0.803 ± 0.026
4.071SerLeu: 4.071 ± 0.054
0.909SerMet: 0.909 ± 0.025
0.71SerAsn: 0.71 ± 0.023
3.299SerPro: 3.299 ± 0.059
0.935SerGln: 0.935 ± 0.022
3.625SerArg: 3.625 ± 0.05
2.104SerSer: 2.104 ± 0.046
2.256SerThr: 2.256 ± 0.041
3.43SerVal: 3.43 ± 0.044
0.756SerTrp: 0.756 ± 0.019
0.943SerTyr: 0.943 ± 0.023
0.0SerXaa: 0.0 ± 0.0
Thr
7.803ThrAla: 7.803 ± 0.085
0.431ThrCys: 0.431 ± 0.016
2.754ThrAsp: 2.754 ± 0.049
2.814ThrGlu: 2.814 ± 0.041
1.585ThrPhe: 1.585 ± 0.034
6.249ThrGly: 6.249 ± 0.069
0.991ThrHis: 0.991 ± 0.025
2.151ThrIle: 2.151 ± 0.035
0.977ThrLys: 0.977 ± 0.026
5.545ThrLeu: 5.545 ± 0.061
0.923ThrMet: 0.923 ± 0.026
0.872ThrAsn: 0.872 ± 0.024
4.166ThrPro: 4.166 ± 0.062
1.097ThrGln: 1.097 ± 0.026
4.126ThrArg: 4.126 ± 0.055
2.429ThrSer: 2.429 ± 0.044
3.209ThrThr: 3.209 ± 0.056
5.486ThrVal: 5.486 ± 0.06
0.817ThrTrp: 0.817 ± 0.026
1.121ThrTyr: 1.121 ± 0.033
0.0ThrXaa: 0.0 ± 0.0
Val
11.727ValAla: 11.727 ± 0.103
0.772ValCys: 0.772 ± 0.023
4.723ValAsp: 4.723 ± 0.044
4.906ValGlu: 4.906 ± 0.063
2.336ValPhe: 2.336 ± 0.036
6.493ValGly: 6.493 ± 0.065
1.849ValHis: 1.849 ± 0.039
3.707ValIle: 3.707 ± 0.046
1.65ValLys: 1.65 ± 0.037
9.534ValLeu: 9.534 ± 0.083
1.352ValMet: 1.352 ± 0.032
1.662ValAsn: 1.662 ± 0.034
5.671ValPro: 5.671 ± 0.058
1.783ValGln: 1.783 ± 0.03
7.86ValArg: 7.86 ± 0.077
3.888ValSer: 3.888 ± 0.053
5.76ValThr: 5.76 ± 0.061
8.301ValVal: 8.301 ± 0.092
1.077ValTrp: 1.077 ± 0.025
1.653ValTyr: 1.653 ± 0.034
0.0ValXaa: 0.0 ± 0.0
Trp
1.548TrpAla: 1.548 ± 0.035
0.148TrpCys: 0.148 ± 0.01
0.722TrpAsp: 0.722 ± 0.024
0.752TrpGlu: 0.752 ± 0.021
0.471TrpPhe: 0.471 ± 0.016
0.956TrpGly: 0.956 ± 0.026
0.391TrpHis: 0.391 ± 0.017
0.567TrpIle: 0.567 ± 0.019
0.272TrpLys: 0.272 ± 0.014
1.816TrpLeu: 1.816 ± 0.039
0.251TrpMet: 0.251 ± 0.012
0.353TrpAsn: 0.353 ± 0.014
0.873TrpPro: 0.873 ± 0.027
0.478TrpGln: 0.478 ± 0.018
1.56TrpArg: 1.56 ± 0.031
0.788TrpSer: 0.788 ± 0.022
0.829TrpThr: 0.829 ± 0.024
0.992TrpVal: 0.992 ± 0.025
0.362TrpTrp: 0.362 ± 0.015
0.365TrpTyr: 0.365 ± 0.015
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.681TyrAla: 2.681 ± 0.045
0.191TyrCys: 0.191 ± 0.012
1.329TyrAsp: 1.329 ± 0.036
1.249TyrGlu: 1.249 ± 0.029
0.632TyrPhe: 0.632 ± 0.018
2.421TyrGly: 2.421 ± 0.038
0.464TyrHis: 0.464 ± 0.014
0.569TyrIle: 0.569 ± 0.019
0.342TyrLys: 0.342 ± 0.017
2.311TyrLeu: 2.311 ± 0.042
0.257TyrMet: 0.257 ± 0.014
0.375TyrAsn: 0.375 ± 0.018
1.143TyrPro: 1.143 ± 0.029
0.564TyrGln: 0.564 ± 0.018
2.098TyrArg: 2.098 ± 0.04
0.809TyrSer: 0.809 ± 0.024
1.04TyrThr: 1.04 ± 0.027
1.741TyrVal: 1.741 ± 0.041
0.319TyrTrp: 0.319 ± 0.014
0.417TyrTyr: 0.417 ± 0.018
0.0TyrXaa: 0.0 ± 0.0
Xaa
0.0XaaAla: 0.0 ± 0.0
0.0XaaCys: 0.0 ± 0.0
0.0XaaAsp: 0.0 ± 0.0
0.0XaaGlu: 0.0 ± 0.0
0.0XaaPhe: 0.0 ± 0.0
0.0XaaGly: 0.0 ± 0.0
0.0XaaHis: 0.0 ± 0.0
0.0XaaIle: 0.0 ± 0.0
0.0XaaLys: 0.0 ± 0.0
0.0XaaLeu: 0.0 ± 0.0
0.0XaaMet: 0.0 ± 0.0
0.0XaaAsn: 0.0 ± 0.0
0.0XaaPro: 0.0 ± 0.0
0.0XaaGln: 0.0 ± 0.0
0.0XaaArg: 0.0 ± 0.0
0.0XaaSer: 0.0 ± 0.0
0.0XaaThr: 0.0 ± 0.0
0.0XaaVal: 0.0 ± 0.0
0.0XaaTrp: 0.0 ± 0.0
0.0XaaTyr: 0.0 ± 0.0
0.0XaaXaa: 0.0 ± 0.0
Statistics based on 4864 proteins (1624665 amino acids)

Note: The error has been estimated with the bootstraping (x100) at the protein level

Above dipeptide statistics (among other stats for this proteome) you can download from this CSV file
See this proteome in: uniprot_link
Proteome-pI is available under Creative Commons Attribution-NoDerivs license, for more details see here

Reference: Kozlowski LP. Proteome-pI 2.0: Proteome Isoelectric Point Database Update. Nucleic Acids Res. 2021, doi: 10.1093/nar/gkab944 Contact: Lukasz P. Kozlowski