Amino acid dipepetide frequency for Pseudomonas pelagia

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
11.799AlaAla: 11.799 ± 0.142
1.203AlaCys: 1.203 ± 0.032
6.146AlaAsp: 6.146 ± 0.076
7.252AlaGlu: 7.252 ± 0.092
3.649AlaPhe: 3.649 ± 0.056
8.738AlaGly: 8.738 ± 0.103
2.062AlaHis: 2.062 ± 0.04
5.239AlaIle: 5.239 ± 0.07
3.282AlaLys: 3.282 ± 0.056
12.766AlaLeu: 12.766 ± 0.117
3.028AlaMet: 3.028 ± 0.041
2.998AlaAsn: 2.998 ± 0.054
4.1AlaPro: 4.1 ± 0.062
4.627AlaGln: 4.627 ± 0.068
6.456AlaArg: 6.456 ± 0.073
6.045AlaSer: 6.045 ± 0.069
4.715AlaThr: 4.715 ± 0.06
7.295AlaVal: 7.295 ± 0.092
1.521AlaTrp: 1.521 ± 0.036
2.35AlaTyr: 2.35 ± 0.041
0.0AlaXaa: 0.0 ± 0.0
Cys
1.059CysAla: 1.059 ± 0.029
0.156CysCys: 0.156 ± 0.009
0.539CysAsp: 0.539 ± 0.02
0.569CysGlu: 0.569 ± 0.022
0.366CysPhe: 0.366 ± 0.017
0.917CysGly: 0.917 ± 0.028
0.316CysHis: 0.316 ± 0.016
0.529CysIle: 0.529 ± 0.02
0.314CysLys: 0.314 ± 0.015
1.119CysLeu: 1.119 ± 0.03
0.243CysMet: 0.243 ± 0.013
0.288CysAsn: 0.288 ± 0.015
0.511CysPro: 0.511 ± 0.021
0.428CysGln: 0.428 ± 0.019
0.644CysArg: 0.644 ± 0.021
0.615CysSer: 0.615 ± 0.024
0.446CysThr: 0.446 ± 0.019
0.691CysVal: 0.691 ± 0.022
0.154CysTrp: 0.154 ± 0.01
0.248CysTyr: 0.248 ± 0.014
0.0CysXaa: 0.0 ± 0.0
Asp
5.669AspAla: 5.669 ± 0.075
0.57AspCys: 0.57 ± 0.021
3.029AspAsp: 3.029 ± 0.072
3.541AspGlu: 3.541 ± 0.059
2.124AspPhe: 2.124 ± 0.04
4.224AspGly: 4.224 ± 0.069
1.19AspHis: 1.19 ± 0.029
3.077AspIle: 3.077 ± 0.048
1.952AspLys: 1.952 ± 0.044
6.025AspLeu: 6.025 ± 0.067
1.519AspMet: 1.519 ± 0.036
1.824AspAsn: 1.824 ± 0.039
2.849AspPro: 2.849 ± 0.048
2.637AspGln: 2.637 ± 0.044
3.202AspArg: 3.202 ± 0.048
3.121AspSer: 3.121 ± 0.056
2.651AspThr: 2.651 ± 0.053
3.77AspVal: 3.77 ± 0.065
0.948AspTrp: 0.948 ± 0.029
1.748AspTyr: 1.748 ± 0.036
0.0AspXaa: 0.0 ± 0.0
Glu
6.361GluAla: 6.361 ± 0.082
0.459GluCys: 0.459 ± 0.02
2.883GluAsp: 2.883 ± 0.052
3.628GluGlu: 3.628 ± 0.067
1.886GluPhe: 1.886 ± 0.041
4.052GluGly: 4.052 ± 0.06
1.695GluHis: 1.695 ± 0.035
2.961GluIle: 2.961 ± 0.05
2.254GluLys: 2.254 ± 0.05
7.037GluLeu: 7.037 ± 0.084
1.604GluMet: 1.604 ± 0.032
1.692GluAsn: 1.692 ± 0.034
2.601GluPro: 2.601 ± 0.052
4.075GluGln: 4.075 ± 0.059
4.703GluArg: 4.703 ± 0.074
3.135GluSer: 3.135 ± 0.052
2.776GluThr: 2.776 ± 0.052
4.249GluVal: 4.249 ± 0.068
0.8GluTrp: 0.8 ± 0.024
1.358GluTyr: 1.358 ± 0.036
0.0GluXaa: 0.0 ± 0.0
Phe
3.822PheAla: 3.822 ± 0.052
0.459PheCys: 0.459 ± 0.017
2.441PheAsp: 2.441 ± 0.048
2.061PheGlu: 2.061 ± 0.04
1.504PhePhe: 1.504 ± 0.041
3.075PheGly: 3.075 ± 0.055
0.757PheHis: 0.757 ± 0.023
1.991PheIle: 1.991 ± 0.04
1.226PheLys: 1.226 ± 0.031
3.257PheLeu: 3.257 ± 0.064
0.993PheMet: 0.993 ± 0.032
1.413PheAsn: 1.413 ± 0.031
1.425PhePro: 1.425 ± 0.035
1.233PheGln: 1.233 ± 0.03
1.836PheArg: 1.836 ± 0.038
2.53PheSer: 2.53 ± 0.048
1.945PheThr: 1.945 ± 0.038
2.473PheVal: 2.473 ± 0.052
0.522PheTrp: 0.522 ± 0.023
1.109PheTyr: 1.109 ± 0.032
0.0PheXaa: 0.0 ± 0.0
Gly
6.851GlyAla: 6.851 ± 0.081
0.938GlyCys: 0.938 ± 0.03
3.978GlyAsp: 3.978 ± 0.083
4.738GlyGlu: 4.738 ± 0.068
3.295GlyPhe: 3.295 ± 0.053
5.885GlyGly: 5.885 ± 0.102
1.805GlyHis: 1.805 ± 0.035
4.34GlyIle: 4.34 ± 0.057
3.263GlyLys: 3.263 ± 0.058
8.991GlyLeu: 8.991 ± 0.096
2.501GlyMet: 2.501 ± 0.047
2.459GlyAsn: 2.459 ± 0.055
2.557GlyPro: 2.557 ± 0.047
3.525GlyGln: 3.525 ± 0.057
4.667GlyArg: 4.667 ± 0.064
4.704GlySer: 4.704 ± 0.078
3.69GlyThr: 3.69 ± 0.058
5.83GlyVal: 5.83 ± 0.074
1.314GlyTrp: 1.314 ± 0.035
2.443GlyTyr: 2.443 ± 0.039
0.0GlyXaa: 0.0 ± 0.0
His
2.22HisAla: 2.22 ± 0.045
0.351HisCys: 0.351 ± 0.02
1.22HisAsp: 1.22 ± 0.032
1.211HisGlu: 1.211 ± 0.03
1.014HisPhe: 1.014 ± 0.031
1.84HisGly: 1.84 ± 0.043
0.616HisHis: 0.616 ± 0.023
1.116HisIle: 1.116 ± 0.026
0.665HisLys: 0.665 ± 0.024
2.435HisLeu: 2.435 ± 0.047
0.573HisMet: 0.573 ± 0.02
0.682HisAsn: 0.682 ± 0.021
1.369HisPro: 1.369 ± 0.031
1.07HisGln: 1.07 ± 0.03
1.326HisArg: 1.326 ± 0.032
1.365HisSer: 1.365 ± 0.033
1.036HisThr: 1.036 ± 0.027
1.306HisVal: 1.306 ± 0.031
0.409HisTrp: 0.409 ± 0.02
0.754HisTyr: 0.754 ± 0.023
0.0HisXaa: 0.0 ± 0.0
Ile
5.822IleAla: 5.822 ± 0.063
0.55IleCys: 0.55 ± 0.021
3.463IleAsp: 3.463 ± 0.056
3.541IleGlu: 3.541 ± 0.06
1.622IlePhe: 1.622 ± 0.039
4.42IleGly: 4.42 ± 0.066
1.047IleHis: 1.047 ± 0.029
2.561IleIle: 2.561 ± 0.053
1.868IleLys: 1.868 ± 0.045
4.591IleLeu: 4.591 ± 0.071
1.116IleMet: 1.116 ± 0.032
2.108IleAsn: 2.108 ± 0.044
2.452IlePro: 2.452 ± 0.039
1.83IleGln: 1.83 ± 0.031
3.051IleArg: 3.051 ± 0.049
3.418IleSer: 3.418 ± 0.064
2.844IleThr: 2.844 ± 0.051
3.3IleVal: 3.3 ± 0.052
0.613IleTrp: 0.613 ± 0.022
1.208IleTyr: 1.208 ± 0.029
0.0IleXaa: 0.0 ± 0.0
Lys
3.929LysAla: 3.929 ± 0.064
0.199LysCys: 0.199 ± 0.014
1.733LysAsp: 1.733 ± 0.041
1.757LysGlu: 1.757 ± 0.038
0.806LysPhe: 0.806 ± 0.028
2.495LysGly: 2.495 ± 0.048
0.813LysHis: 0.813 ± 0.025
1.582LysIle: 1.582 ± 0.039
1.366LysLys: 1.366 ± 0.042
3.618LysLeu: 3.618 ± 0.055
0.787LysMet: 0.787 ± 0.028
0.976LysAsn: 0.976 ± 0.029
2.031LysPro: 2.031 ± 0.039
1.629LysGln: 1.629 ± 0.039
2.492LysArg: 2.492 ± 0.044
1.78LysSer: 1.78 ± 0.039
1.785LysThr: 1.785 ± 0.036
2.683LysVal: 2.683 ± 0.057
0.337LysTrp: 0.337 ± 0.017
0.665LysTyr: 0.665 ± 0.024
0.0LysXaa: 0.0 ± 0.0
Leu
13.035LeuAla: 13.035 ± 0.12
1.194LeuCys: 1.194 ± 0.03
6.738LeuAsp: 6.738 ± 0.077
6.643LeuGlu: 6.643 ± 0.091
4.109LeuPhe: 4.109 ± 0.076
8.681LeuGly: 8.681 ± 0.097
2.441LeuHis: 2.441 ± 0.046
5.913LeuIle: 5.913 ± 0.07
4.048LeuLys: 4.048 ± 0.059
13.066LeuLeu: 13.066 ± 0.179
2.841LeuMet: 2.841 ± 0.053
3.632LeuAsn: 3.632 ± 0.052
6.025LeuPro: 6.025 ± 0.081
4.731LeuGln: 4.731 ± 0.076
7.024LeuArg: 7.024 ± 0.089
7.059LeuSer: 7.059 ± 0.081
5.876LeuThr: 5.876 ± 0.061
7.792LeuVal: 7.792 ± 0.095
1.4LeuTrp: 1.4 ± 0.04
2.545LeuTyr: 2.545 ± 0.05
0.0LeuXaa: 0.0 ± 0.0
Met
2.925MetAla: 2.925 ± 0.046
0.195MetCys: 0.195 ± 0.012
1.277MetAsp: 1.277 ± 0.034
1.177MetGlu: 1.177 ± 0.031
0.742MetPhe: 0.742 ± 0.023
2.016MetGly: 2.016 ± 0.039
0.643MetHis: 0.643 ± 0.023
1.316MetIle: 1.316 ± 0.033
0.926MetLys: 0.926 ± 0.029
3.164MetLeu: 3.164 ± 0.052
0.639MetMet: 0.639 ± 0.026
0.933MetAsn: 0.933 ± 0.027
1.522MetPro: 1.522 ± 0.038
1.345MetGln: 1.345 ± 0.032
1.678MetArg: 1.678 ± 0.039
1.826MetSer: 1.826 ± 0.04
1.632MetThr: 1.632 ± 0.035
1.789MetVal: 1.789 ± 0.039
0.219MetTrp: 0.219 ± 0.012
0.429MetTyr: 0.429 ± 0.019
0.0MetXaa: 0.0 ± 0.0
Asn
3.248AsnAla: 3.248 ± 0.055
0.302AsnCys: 0.302 ± 0.016
1.646AsnAsp: 1.646 ± 0.038
1.662AsnGlu: 1.662 ± 0.037
1.063AsnPhe: 1.063 ± 0.03
2.434AsnGly: 2.434 ± 0.043
0.646AsnHis: 0.646 ± 0.027
1.677AsnIle: 1.677 ± 0.033
1.007AsnLys: 1.007 ± 0.024
3.37AsnLeu: 3.37 ± 0.056
0.75AsnMet: 0.75 ± 0.025
1.119AsnAsn: 1.119 ± 0.033
2.017AsnPro: 2.017 ± 0.039
1.443AsnGln: 1.443 ± 0.036
1.954AsnArg: 1.954 ± 0.034
1.791AsnSer: 1.791 ± 0.043
1.653AsnThr: 1.653 ± 0.044
1.986AsnVal: 1.986 ± 0.048
0.488AsnTrp: 0.488 ± 0.016
0.839AsnTyr: 0.839 ± 0.026
0.0AsnXaa: 0.0 ± 0.0
Pro
5.264ProAla: 5.264 ± 0.071
0.402ProCys: 0.402 ± 0.018
3.08ProAsp: 3.08 ± 0.05
3.756ProGlu: 3.756 ± 0.061
1.719ProPhe: 1.719 ± 0.036
4.045ProGly: 4.045 ± 0.058
0.961ProHis: 0.961 ± 0.033
2.091ProIle: 2.091 ± 0.043
1.352ProLys: 1.352 ± 0.036
5.267ProLeu: 5.267 ± 0.081
1.285ProMet: 1.285 ± 0.031
1.304ProAsn: 1.304 ± 0.033
1.897ProPro: 1.897 ± 0.048
2.001ProGln: 2.001 ± 0.037
2.385ProArg: 2.385 ± 0.043
2.549ProSer: 2.549 ± 0.048
2.119ProThr: 2.119 ± 0.036
3.842ProVal: 3.842 ± 0.062
0.72ProTrp: 0.72 ± 0.028
1.141ProTyr: 1.141 ± 0.031
0.0ProXaa: 0.0 ± 0.0
Gln
5.747GlnAla: 5.747 ± 0.076
0.373GlnCys: 0.373 ± 0.019
1.943GlnAsp: 1.943 ± 0.042
2.151GlnGlu: 2.151 ± 0.043
1.381GlnPhe: 1.381 ± 0.027
3.417GlnGly: 3.417 ± 0.047
1.181GlnHis: 1.181 ± 0.034
2.305GlnIle: 2.305 ± 0.042
1.199GlnLys: 1.199 ± 0.029
5.676GlnLeu: 5.676 ± 0.081
1.115GlnMet: 1.115 ± 0.026
1.117GlnAsn: 1.117 ± 0.031
2.467GlnPro: 2.467 ± 0.047
3.015GlnGln: 3.015 ± 0.06
3.63GlnArg: 3.63 ± 0.066
2.488GlnSer: 2.488 ± 0.041
2.061GlnThr: 2.061 ± 0.041
3.5GlnVal: 3.5 ± 0.058
0.714GlnTrp: 0.714 ± 0.023
1.015GlnTyr: 1.015 ± 0.029
0.0GlnXaa: 0.0 ± 0.0
Arg
5.523ArgAla: 5.523 ± 0.067
0.602ArgCys: 0.602 ± 0.023
3.524ArgAsp: 3.524 ± 0.052
4.075ArgGlu: 4.075 ± 0.06
2.765ArgPhe: 2.765 ± 0.045
3.833ArgGly: 3.833 ± 0.056
1.607ArgHis: 1.607 ± 0.035
3.452ArgIle: 3.452 ± 0.055
2.131ArgLys: 2.131 ± 0.039
7.872ArgLeu: 7.872 ± 0.095
1.781ArgMet: 1.781 ± 0.039
1.976ArgAsn: 1.976 ± 0.042
2.639ArgPro: 2.639 ± 0.047
3.272ArgGln: 3.272 ± 0.059
4.151ArgArg: 4.151 ± 0.077
3.535ArgSer: 3.535 ± 0.056
2.733ArgThr: 2.733 ± 0.043
4.392ArgVal: 4.392 ± 0.066
1.053ArgTrp: 1.053 ± 0.03
2.058ArgTyr: 2.058 ± 0.038
0.0ArgXaa: 0.0 ± 0.0
Ser
6.197SerAla: 6.197 ± 0.085
0.546SerCys: 0.546 ± 0.022
3.11SerAsp: 3.11 ± 0.05
3.398SerGlu: 3.398 ± 0.048
2.196SerPhe: 2.196 ± 0.041
5.224SerGly: 5.224 ± 0.068
1.317SerHis: 1.317 ± 0.033
3.112SerIle: 3.112 ± 0.059
1.884SerLys: 1.884 ± 0.042
7.012SerLeu: 7.012 ± 0.081
1.639SerMet: 1.639 ± 0.034
1.808SerAsn: 1.808 ± 0.046
2.627SerPro: 2.627 ± 0.04
2.585SerGln: 2.585 ± 0.043
3.672SerArg: 3.672 ± 0.051
3.813SerSer: 3.813 ± 0.06
2.924SerThr: 2.924 ± 0.051
4.131SerVal: 4.131 ± 0.059
0.895SerTrp: 0.895 ± 0.026
1.508SerTyr: 1.508 ± 0.033
0.0SerXaa: 0.0 ± 0.0
Thr
4.996ThrAla: 4.996 ± 0.065
0.468ThrCys: 0.468 ± 0.019
2.853ThrAsp: 2.853 ± 0.045
2.7ThrGlu: 2.7 ± 0.046
1.74ThrPhe: 1.74 ± 0.038
4.458ThrGly: 4.458 ± 0.062
1.096ThrHis: 1.096 ± 0.029
2.153ThrIle: 2.153 ± 0.042
1.188ThrLys: 1.188 ± 0.03
6.601ThrLeu: 6.601 ± 0.069
0.949ThrMet: 0.949 ± 0.027
1.326ThrAsn: 1.326 ± 0.037
2.905ThrPro: 2.905 ± 0.044
2.116ThrGln: 2.116 ± 0.039
2.977ThrArg: 2.977 ± 0.046
2.859ThrSer: 2.859 ± 0.051
2.414ThrThr: 2.414 ± 0.048
3.391ThrVal: 3.391 ± 0.058
0.677ThrTrp: 0.677 ± 0.026
1.145ThrTyr: 1.145 ± 0.032
0.0ThrXaa: 0.0 ± 0.0
Val
7.282ValAla: 7.282 ± 0.086
0.72ValCys: 0.72 ± 0.023
4.014ValAsp: 4.014 ± 0.067
4.457ValGlu: 4.457 ± 0.061
2.549ValPhe: 2.549 ± 0.051
5.094ValGly: 5.094 ± 0.075
1.393ValHis: 1.393 ± 0.032
4.151ValIle: 4.151 ± 0.065
2.377ValLys: 2.377 ± 0.047
7.777ValLeu: 7.777 ± 0.085
2.058ValMet: 2.058 ± 0.047
2.297ValAsn: 2.297 ± 0.052
3.171ValPro: 3.171 ± 0.051
2.598ValGln: 2.598 ± 0.047
4.151ValArg: 4.151 ± 0.064
4.574ValSer: 4.574 ± 0.07
3.848ValThr: 3.848 ± 0.06
5.347ValVal: 5.347 ± 0.068
0.851ValTrp: 0.851 ± 0.029
1.619ValTyr: 1.619 ± 0.041
0.0ValXaa: 0.0 ± 0.0
Trp
1.1TrpAla: 1.1 ± 0.031
0.147TrpCys: 0.147 ± 0.011
0.679TrpAsp: 0.679 ± 0.024
0.648TrpGlu: 0.648 ± 0.024
0.537TrpPhe: 0.537 ± 0.021
0.906TrpGly: 0.906 ± 0.03
0.381TrpHis: 0.381 ± 0.019
0.717TrpIle: 0.717 ± 0.024
0.4TrpLys: 0.4 ± 0.018
2.196TrpLeu: 2.196 ± 0.048
0.429TrpMet: 0.429 ± 0.018
0.404TrpAsn: 0.404 ± 0.02
0.721TrpPro: 0.721 ± 0.026
0.958TrpGln: 0.958 ± 0.027
1.044TrpArg: 1.044 ± 0.032
0.793TrpSer: 0.793 ± 0.025
0.652TrpThr: 0.652 ± 0.023
0.975TrpVal: 0.975 ± 0.031
0.223TrpTrp: 0.223 ± 0.015
0.349TrpTyr: 0.349 ± 0.016
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.422TyrAla: 2.422 ± 0.044
0.316TyrCys: 0.316 ± 0.015
1.372TyrAsp: 1.372 ± 0.036
1.244TyrGlu: 1.244 ± 0.029
1.008TyrPhe: 1.008 ± 0.029
2.023TyrGly: 2.023 ± 0.042
0.61TyrHis: 0.61 ± 0.023
1.139TyrIle: 1.139 ± 0.03
0.763TyrLys: 0.763 ± 0.025
2.954TyrLeu: 2.954 ± 0.047
0.542TyrMet: 0.542 ± 0.017
0.739TyrAsn: 0.739 ± 0.024
1.294TyrPro: 1.294 ± 0.032
1.376TyrGln: 1.376 ± 0.033
1.933TyrArg: 1.933 ± 0.044
1.598TyrSer: 1.598 ± 0.04
1.211TyrThr: 1.211 ± 0.031
1.586TyrVal: 1.586 ± 0.038
0.401TyrTrp: 0.401 ± 0.018
0.723TyrTyr: 0.723 ± 0.026
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 4145 proteins (1348114 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