Amino acid dipepetide frequency for Helicobacter anseris

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
2.12AlaAla: 2.12 ± 0.091
0.796AlaCys: 0.796 ± 0.045
2.622AlaAsp: 2.622 ± 0.097
2.326AlaGlu: 2.326 ± 0.077
3.275AlaPhe: 3.275 ± 0.089
3.518AlaGly: 3.518 ± 0.103
0.969AlaHis: 0.969 ± 0.042
6.064AlaIle: 6.064 ± 0.109
6.125AlaLys: 6.125 ± 0.113
7.143AlaLeu: 7.143 ± 0.133
1.681AlaMet: 1.681 ± 0.073
3.824AlaAsn: 3.824 ± 0.142
1.645AlaPro: 1.645 ± 0.056
2.932AlaGln: 2.932 ± 0.096
2.255AlaArg: 2.255 ± 0.079
4.544AlaSer: 4.544 ± 0.129
3.277AlaThr: 3.277 ± 0.118
2.51AlaVal: 2.51 ± 0.089
0.398AlaTrp: 0.398 ± 0.03
2.536AlaTyr: 2.536 ± 0.08
0.0AlaXaa: 0.0 ± 0.0
Cys
0.781CysAla: 0.781 ± 0.047
0.169CysCys: 0.169 ± 0.019
0.745CysAsp: 0.745 ± 0.044
0.684CysGlu: 0.684 ± 0.044
0.737CysPhe: 0.737 ± 0.04
0.975CysGly: 0.975 ± 0.042
0.251CysHis: 0.251 ± 0.027
1.212CysIle: 1.212 ± 0.059
0.971CysLys: 0.971 ± 0.045
0.928CysLeu: 0.928 ± 0.053
0.253CysMet: 0.253 ± 0.025
0.733CysAsn: 0.733 ± 0.047
0.38CysPro: 0.38 ± 0.029
0.357CysGln: 0.357 ± 0.03
0.3CysArg: 0.3 ± 0.025
0.688CysSer: 0.688 ± 0.042
0.441CysThr: 0.441 ± 0.033
0.733CysVal: 0.733 ± 0.038
0.073CysTrp: 0.073 ± 0.012
0.408CysTyr: 0.408 ± 0.025
0.0CysXaa: 0.0 ± 0.0
Asp
2.861AspAla: 2.861 ± 0.091
0.747AspCys: 0.747 ± 0.042
2.291AspAsp: 2.291 ± 0.075
3.297AspGlu: 3.297 ± 0.097
4.713AspPhe: 4.713 ± 0.126
3.234AspGly: 3.234 ± 0.09
0.539AspHis: 0.539 ± 0.034
5.574AspIle: 5.574 ± 0.11
4.448AspLys: 4.448 ± 0.094
5.37AspLeu: 5.37 ± 0.123
1.5AspMet: 1.5 ± 0.072
2.659AspAsn: 2.659 ± 0.074
1.147AspPro: 1.147 ± 0.054
0.934AspGln: 0.934 ± 0.044
1.795AspArg: 1.795 ± 0.061
4.128AspSer: 4.128 ± 0.113
2.767AspThr: 2.767 ± 0.092
2.812AspVal: 2.812 ± 0.083
0.404AspTrp: 0.404 ± 0.031
2.248AspTyr: 2.248 ± 0.06
0.0AspXaa: 0.0 ± 0.0
Glu
3.962GluAla: 3.962 ± 0.105
0.698GluCys: 0.698 ± 0.039
3.156GluAsp: 3.156 ± 0.099
4.523GluGlu: 4.523 ± 0.129
2.963GluPhe: 2.963 ± 0.095
2.94GluGly: 2.94 ± 0.078
0.934GluHis: 0.934 ± 0.045
6.756GluIle: 6.756 ± 0.152
6.292GluLys: 6.292 ± 0.144
5.486GluLeu: 5.486 ± 0.128
1.679GluMet: 1.679 ± 0.059
4.719GluAsn: 4.719 ± 0.122
1.073GluPro: 1.073 ± 0.048
2.236GluGln: 2.236 ± 0.082
2.116GluArg: 2.116 ± 0.084
3.397GluSer: 3.397 ± 0.076
2.471GluThr: 2.471 ± 0.074
4.021GluVal: 4.021 ± 0.106
0.516GluTrp: 0.516 ± 0.031
2.163GluTyr: 2.163 ± 0.075
0.0GluXaa: 0.0 ± 0.0
Phe
3.579PheAla: 3.579 ± 0.094
1.053PheCys: 1.053 ± 0.052
3.748PheAsp: 3.748 ± 0.1
3.856PheGlu: 3.856 ± 0.098
4.077PhePhe: 4.077 ± 0.118
4.119PheGly: 4.119 ± 0.104
0.796PheHis: 0.796 ± 0.043
4.742PheIle: 4.742 ± 0.126
3.75PheLys: 3.75 ± 0.095
6.725PheLeu: 6.725 ± 0.147
1.243PheMet: 1.243 ± 0.055
3.236PheAsn: 3.236 ± 0.102
1.269PhePro: 1.269 ± 0.052
1.383PheGln: 1.383 ± 0.048
1.559PheArg: 1.559 ± 0.056
4.474PheSer: 4.474 ± 0.099
2.148PheThr: 2.148 ± 0.072
3.171PheVal: 3.171 ± 0.084
0.484PheTrp: 0.484 ± 0.037
2.677PheTyr: 2.677 ± 0.092
0.0PheXaa: 0.0 ± 0.0
Gly
4.138GlyAla: 4.138 ± 0.125
0.79GlyCys: 0.79 ± 0.043
3.171GlyAsp: 3.171 ± 0.095
3.418GlyGlu: 3.418 ± 0.098
3.738GlyPhe: 3.738 ± 0.108
5.054GlyGly: 5.054 ± 0.156
0.871GlyHis: 0.871 ± 0.049
6.511GlyIle: 6.511 ± 0.129
4.562GlyLys: 4.562 ± 0.093
5.005GlyLeu: 5.005 ± 0.114
1.579GlyMet: 1.579 ± 0.062
3.667GlyAsn: 3.667 ± 0.178
0.784GlyPro: 0.784 ± 0.042
1.381GlyGln: 1.381 ± 0.055
1.922GlyArg: 1.922 ± 0.07
4.397GlySer: 4.397 ± 0.159
2.807GlyThr: 2.807 ± 0.136
4.144GlyVal: 4.144 ± 0.11
0.443GlyTrp: 0.443 ± 0.029
2.697GlyTyr: 2.697 ± 0.072
0.0GlyXaa: 0.0 ± 0.0
His
0.706HisAla: 0.706 ± 0.042
0.277HisCys: 0.277 ± 0.026
0.547HisAsp: 0.547 ± 0.033
0.528HisGlu: 0.528 ± 0.036
1.285HisPhe: 1.285 ± 0.057
0.82HisGly: 0.82 ± 0.045
0.524HisHis: 0.524 ± 0.039
1.759HisIle: 1.759 ± 0.059
1.349HisLys: 1.349 ± 0.05
1.887HisLeu: 1.887 ± 0.071
0.269HisMet: 0.269 ± 0.021
0.973HisAsn: 0.973 ± 0.046
0.737HisPro: 0.737 ± 0.041
1.041HisGln: 1.041 ± 0.048
0.604HisArg: 0.604 ± 0.04
1.22HisSer: 1.22 ± 0.046
1.043HisThr: 1.043 ± 0.046
0.406HisVal: 0.406 ± 0.031
0.124HisTrp: 0.124 ± 0.017
0.794HisTyr: 0.794 ± 0.041
0.0HisXaa: 0.0 ± 0.0
Ile
6.853IleAla: 6.853 ± 0.129
1.173IleCys: 1.173 ± 0.05
5.421IleAsp: 5.421 ± 0.11
5.972IleGlu: 5.972 ± 0.129
5.827IlePhe: 5.827 ± 0.136
5.758IleGly: 5.758 ± 0.106
1.441IleHis: 1.441 ± 0.057
7.2IleIle: 7.2 ± 0.137
7.896IleLys: 7.896 ± 0.153
10.14IleLeu: 10.14 ± 0.166
1.477IleMet: 1.477 ± 0.058
4.491IleAsn: 4.491 ± 0.114
3.23IlePro: 3.23 ± 0.103
4.007IleGln: 4.007 ± 0.095
2.599IleArg: 2.599 ± 0.076
6.229IleSer: 6.229 ± 0.149
5.46IleThr: 5.46 ± 0.193
4.77IleVal: 4.77 ± 0.11
0.586IleTrp: 0.586 ± 0.037
3.314IleTyr: 3.314 ± 0.092
0.0IleXaa: 0.0 ± 0.0
Lys
4.648LysAla: 4.648 ± 0.102
0.608LysCys: 0.608 ± 0.042
5.635LysAsp: 5.635 ± 0.128
7.221LysGlu: 7.221 ± 0.18
2.971LysPhe: 2.971 ± 0.077
3.966LysGly: 3.966 ± 0.085
1.347LysHis: 1.347 ± 0.047
9.445LysIle: 9.445 ± 0.148
8.363LysLys: 8.363 ± 0.18
6.384LysLeu: 6.384 ± 0.118
2.163LysMet: 2.163 ± 0.057
7.619LysAsn: 7.619 ± 0.134
2.142LysPro: 2.142 ± 0.075
3.548LysGln: 3.548 ± 0.098
2.763LysArg: 2.763 ± 0.078
4.883LysSer: 4.883 ± 0.093
4.532LysThr: 4.532 ± 0.094
4.087LysVal: 4.087 ± 0.102
0.624LysTrp: 0.624 ± 0.053
2.885LysTyr: 2.885 ± 0.077
0.0LysXaa: 0.0 ± 0.0
Leu
6.217LeuAla: 6.217 ± 0.116
1.328LeuCys: 1.328 ± 0.051
5.917LeuAsp: 5.917 ± 0.124
7.335LeuGlu: 7.335 ± 0.166
5.446LeuPhe: 5.446 ± 0.126
5.921LeuGly: 5.921 ± 0.124
1.832LeuHis: 1.832 ± 0.065
7.347LeuIle: 7.347 ± 0.139
9.263LeuLys: 9.263 ± 0.197
9.671LeuLeu: 9.671 ± 0.205
2.057LeuMet: 2.057 ± 0.062
5.34LeuAsn: 5.34 ± 0.104
3.234LeuPro: 3.234 ± 0.088
4.878LeuGln: 4.878 ± 0.11
3.362LeuArg: 3.362 ± 0.088
7.492LeuSer: 7.492 ± 0.134
4.019LeuThr: 4.019 ± 0.108
4.509LeuVal: 4.509 ± 0.108
0.71LeuTrp: 0.71 ± 0.041
3.35LeuTyr: 3.35 ± 0.089
0.0LeuXaa: 0.0 ± 0.0
Met
1.424MetAla: 1.424 ± 0.057
0.231MetCys: 0.231 ± 0.021
1.053MetAsp: 1.053 ± 0.05
1.153MetGlu: 1.153 ± 0.05
1.228MetPhe: 1.228 ± 0.091
1.553MetGly: 1.553 ± 0.058
0.524MetHis: 0.524 ± 0.031
1.936MetIle: 1.936 ± 0.059
1.796MetLys: 1.796 ± 0.064
2.473MetLeu: 2.473 ± 0.073
0.549MetMet: 0.549 ± 0.036
0.91MetAsn: 0.91 ± 0.041
0.967MetPro: 0.967 ± 0.044
1.796MetGln: 1.796 ± 0.06
0.883MetArg: 0.883 ± 0.048
1.465MetSer: 1.465 ± 0.062
0.747MetThr: 0.747 ± 0.037
1.087MetVal: 1.087 ± 0.044
0.147MetTrp: 0.147 ± 0.02
0.49MetTyr: 0.49 ± 0.031
0.0MetXaa: 0.0 ± 0.0
Asn
4.319AsnAla: 4.319 ± 0.143
0.492AsnCys: 0.492 ± 0.035
2.546AsnAsp: 2.546 ± 0.077
2.885AsnGlu: 2.885 ± 0.077
3.828AsnPhe: 3.828 ± 0.105
3.783AsnGly: 3.783 ± 0.16
1.198AsnHis: 1.198 ± 0.053
6.517AsnIle: 6.517 ± 0.175
4.511AsnLys: 4.511 ± 0.101
6.433AsnLeu: 6.433 ± 0.121
1.196AsnMet: 1.196 ± 0.065
3.92AsnAsn: 3.92 ± 0.167
2.577AsnPro: 2.577 ± 0.072
2.999AsnGln: 2.999 ± 0.091
1.504AsnArg: 1.504 ± 0.06
3.577AsnSer: 3.577 ± 0.133
4.183AsnThr: 4.183 ± 0.228
2.893AsnVal: 2.893 ± 0.122
0.341AsnTrp: 0.341 ± 0.032
2.0AsnTyr: 2.0 ± 0.073
0.0AsnXaa: 0.0 ± 0.0
Pro
1.273ProAla: 1.273 ± 0.053
0.3ProCys: 0.3 ± 0.024
1.224ProAsp: 1.224 ± 0.059
1.418ProGlu: 1.418 ± 0.065
1.647ProPhe: 1.647 ± 0.062
0.788ProGly: 0.788 ± 0.038
0.706ProHis: 0.706 ± 0.04
2.812ProIle: 2.812 ± 0.082
2.699ProLys: 2.699 ± 0.085
3.228ProLeu: 3.228 ± 0.101
0.622ProMet: 0.622 ± 0.036
1.802ProAsn: 1.802 ± 0.059
0.839ProPro: 0.839 ± 0.043
1.547ProGln: 1.547 ± 0.058
0.834ProArg: 0.834 ± 0.048
2.122ProSer: 2.122 ± 0.069
1.608ProThr: 1.608 ± 0.068
1.33ProVal: 1.33 ± 0.055
0.212ProTrp: 0.212 ± 0.02
1.34ProTyr: 1.34 ± 0.052
0.0ProXaa: 0.0 ± 0.0
Gln
2.546GlnAla: 2.546 ± 0.091
0.375GlnCys: 0.375 ± 0.025
2.655GlnAsp: 2.655 ± 0.078
4.213GlnGlu: 4.213 ± 0.106
1.075GlnPhe: 1.075 ± 0.048
2.048GlnGly: 2.048 ± 0.078
0.524GlnHis: 0.524 ± 0.032
3.669GlnIle: 3.669 ± 0.1
5.105GlnLys: 5.105 ± 0.115
2.279GlnLeu: 2.279 ± 0.063
0.906GlnMet: 0.906 ± 0.045
3.518GlnAsn: 3.518 ± 0.103
0.91GlnPro: 0.91 ± 0.058
1.561GlnGln: 1.561 ± 0.057
1.336GlnArg: 1.336 ± 0.053
2.567GlnSer: 2.567 ± 0.068
2.159GlnThr: 2.159 ± 0.06
1.767GlnVal: 1.767 ± 0.05
0.273GlnTrp: 0.273 ± 0.026
1.294GlnTyr: 1.294 ± 0.052
0.0GlnXaa: 0.0 ± 0.0
Arg
1.891ArgAla: 1.891 ± 0.073
0.306ArgCys: 0.306 ± 0.024
1.936ArgAsp: 1.936 ± 0.072
2.485ArgGlu: 2.485 ± 0.086
1.947ArgPhe: 1.947 ± 0.071
1.967ArgGly: 1.967 ± 0.074
0.469ArgHis: 0.469 ± 0.03
3.256ArgIle: 3.256 ± 0.082
2.283ArgLys: 2.283 ± 0.084
2.952ArgLeu: 2.952 ± 0.087
0.832ArgMet: 0.832 ± 0.042
1.759ArgAsn: 1.759 ± 0.052
0.718ArgPro: 0.718 ± 0.047
1.024ArgGln: 1.024 ± 0.046
1.073ArgArg: 1.073 ± 0.058
1.745ArgSer: 1.745 ± 0.056
1.055ArgThr: 1.055 ± 0.044
2.118ArgVal: 2.118 ± 0.066
0.259ArgTrp: 0.259 ± 0.026
1.441ArgTyr: 1.441 ± 0.055
0.0ArgXaa: 0.0 ± 0.0
Ser
4.095SerAla: 4.095 ± 0.11
0.698SerCys: 0.698 ± 0.034
3.254SerAsp: 3.254 ± 0.088
3.067SerGlu: 3.067 ± 0.078
4.487SerPhe: 4.487 ± 0.106
4.942SerGly: 4.942 ± 0.164
1.171SerHis: 1.171 ± 0.049
6.354SerIle: 6.354 ± 0.139
5.462SerLys: 5.462 ± 0.11
7.231SerLeu: 7.231 ± 0.139
1.498SerMet: 1.498 ± 0.054
4.477SerAsn: 4.477 ± 0.181
1.649SerPro: 1.649 ± 0.063
2.775SerGln: 2.775 ± 0.071
1.997SerArg: 1.997 ± 0.064
4.889SerSer: 4.889 ± 0.165
3.075SerThr: 3.075 ± 0.114
3.522SerVal: 3.522 ± 0.085
0.449SerTrp: 0.449 ± 0.033
2.675SerTyr: 2.675 ± 0.074
0.0SerXaa: 0.0 ± 0.0
Thr
2.571ThrAla: 2.571 ± 0.099
0.392ThrCys: 0.392 ± 0.03
2.016ThrAsp: 2.016 ± 0.075
1.822ThrGlu: 1.822 ± 0.068
2.601ThrPhe: 2.601 ± 0.094
3.018ThrGly: 3.018 ± 0.125
1.071ThrHis: 1.071 ± 0.05
4.597ThrIle: 4.597 ± 0.177
4.058ThrLys: 4.058 ± 0.09
6.068ThrLeu: 6.068 ± 0.167
0.908ThrMet: 0.908 ± 0.042
3.181ThrAsn: 3.181 ± 0.167
2.301ThrPro: 2.301 ± 0.069
2.708ThrGln: 2.708 ± 0.084
1.441ThrArg: 1.441 ± 0.057
3.628ThrSer: 3.628 ± 0.148
3.12ThrThr: 3.12 ± 0.136
1.204ThrVal: 1.204 ± 0.061
0.343ThrTrp: 0.343 ± 0.029
1.898ThrTyr: 1.898 ± 0.071
0.0ThrXaa: 0.0 ± 0.0
Val
3.538ValAla: 3.538 ± 0.097
0.773ValCys: 0.773 ± 0.042
2.871ValAsp: 2.871 ± 0.073
3.073ValGlu: 3.073 ± 0.102
3.409ValPhe: 3.409 ± 0.091
3.644ValGly: 3.644 ± 0.086
0.665ValHis: 0.665 ± 0.035
4.562ValIle: 4.562 ± 0.094
3.432ValLys: 3.432 ± 0.103
5.386ValLeu: 5.386 ± 0.117
1.139ValMet: 1.139 ± 0.055
2.299ValAsn: 2.299 ± 0.068
1.328ValPro: 1.328 ± 0.048
1.453ValGln: 1.453 ± 0.05
1.632ValArg: 1.632 ± 0.06
3.701ValSer: 3.701 ± 0.096
1.946ValThr: 1.946 ± 0.072
3.581ValVal: 3.581 ± 0.116
0.371ValTrp: 0.371 ± 0.029
1.796ValTyr: 1.796 ± 0.059
0.0ValXaa: 0.0 ± 0.0
Trp
0.392TrpAla: 0.392 ± 0.031
0.106TrpCys: 0.106 ± 0.017
0.504TrpAsp: 0.504 ± 0.045
0.416TrpGlu: 0.416 ± 0.027
0.359TrpPhe: 0.359 ± 0.032
0.557TrpGly: 0.557 ± 0.04
0.155TrpHis: 0.155 ± 0.018
0.737TrpIle: 0.737 ± 0.045
0.471TrpLys: 0.471 ± 0.034
0.728TrpLeu: 0.728 ± 0.041
0.177TrpMet: 0.177 ± 0.016
0.588TrpAsn: 0.588 ± 0.058
0.094TrpPro: 0.094 ± 0.016
0.253TrpGln: 0.253 ± 0.021
0.259TrpArg: 0.259 ± 0.025
0.38TrpSer: 0.38 ± 0.026
0.2TrpThr: 0.2 ± 0.02
0.365TrpVal: 0.365 ± 0.028
0.084TrpTrp: 0.084 ± 0.012
0.298TrpTyr: 0.298 ± 0.025
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.65TyrAla: 2.65 ± 0.08
0.508TyrCys: 0.508 ± 0.038
2.157TyrAsp: 2.157 ± 0.06
2.406TyrGlu: 2.406 ± 0.081
2.475TyrPhe: 2.475 ± 0.082
2.475TyrGly: 2.475 ± 0.076
0.906TyrHis: 0.906 ± 0.044
2.791TyrIle: 2.791 ± 0.081
3.003TyrLys: 3.003 ± 0.083
3.713TyrLeu: 3.713 ± 0.095
0.683TyrMet: 0.683 ± 0.04
1.985TyrAsn: 1.985 ± 0.067
1.326TyrPro: 1.326 ± 0.052
1.967TyrGln: 1.967 ± 0.059
1.283TyrArg: 1.283 ± 0.047
2.242TyrSer: 2.242 ± 0.067
1.889TyrThr: 1.889 ± 0.075
1.567TyrVal: 1.567 ± 0.061
0.282TyrTrp: 0.282 ± 0.027
1.577TyrTyr: 1.577 ± 0.058
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 1577 proteins (509887 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