Amino acid dipepetide frequency for Ketobacter alkanivorans

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
8.991AlaAla: 8.991 ± 0.122
1.041AlaCys: 1.041 ± 0.029
5.277AlaAsp: 5.277 ± 0.083
5.772AlaGlu: 5.772 ± 0.07
3.434AlaPhe: 3.434 ± 0.058
6.669AlaGly: 6.669 ± 0.093
1.836AlaHis: 1.836 ± 0.036
5.442AlaIle: 5.442 ± 0.073
3.922AlaLys: 3.922 ± 0.072
10.206AlaLeu: 10.206 ± 0.106
2.736AlaMet: 2.736 ± 0.048
3.312AlaAsn: 3.312 ± 0.053
3.562AlaPro: 3.562 ± 0.064
3.934AlaGln: 3.934 ± 0.06
4.594AlaArg: 4.594 ± 0.068
5.806AlaSer: 5.806 ± 0.095
4.46AlaThr: 4.46 ± 0.087
6.39AlaVal: 6.39 ± 0.076
1.091AlaTrp: 1.091 ± 0.029
2.422AlaTyr: 2.422 ± 0.041
0.0AlaXaa: 0.0 ± 0.0
Cys
0.893CysAla: 0.893 ± 0.027
0.156CysCys: 0.156 ± 0.011
0.642CysAsp: 0.642 ± 0.02
0.593CysGlu: 0.593 ± 0.022
0.411CysPhe: 0.411 ± 0.019
0.922CysGly: 0.922 ± 0.028
0.353CysHis: 0.353 ± 0.014
0.593CysIle: 0.593 ± 0.02
0.384CysLys: 0.384 ± 0.017
1.035CysLeu: 1.035 ± 0.027
0.229CysMet: 0.229 ± 0.015
0.364CysAsn: 0.364 ± 0.017
0.467CysPro: 0.467 ± 0.019
0.428CysGln: 0.428 ± 0.019
0.535CysArg: 0.535 ± 0.021
0.709CysSer: 0.709 ± 0.024
0.477CysThr: 0.477 ± 0.019
0.746CysVal: 0.746 ± 0.024
0.171CysTrp: 0.171 ± 0.016
0.301CysTyr: 0.301 ± 0.014
0.0CysXaa: 0.0 ± 0.0
Asp
5.151AspAla: 5.151 ± 0.073
0.564AspCys: 0.564 ± 0.019
3.417AspAsp: 3.417 ± 0.075
3.737AspGlu: 3.737 ± 0.061
2.361AspPhe: 2.361 ± 0.049
4.244AspGly: 4.244 ± 0.119
1.357AspHis: 1.357 ± 0.038
3.61AspIle: 3.61 ± 0.051
2.436AspLys: 2.436 ± 0.047
5.917AspLeu: 5.917 ± 0.074
1.463AspMet: 1.463 ± 0.03
2.207AspAsn: 2.207 ± 0.048
2.696AspPro: 2.696 ± 0.044
2.773AspGln: 2.773 ± 0.043
3.031AspArg: 3.031 ± 0.046
3.533AspSer: 3.533 ± 0.056
3.027AspThr: 3.027 ± 0.108
4.057AspVal: 4.057 ± 0.061
0.885AspTrp: 0.885 ± 0.027
2.027AspTyr: 2.027 ± 0.036
0.0AspXaa: 0.0 ± 0.0
Glu
5.623GluAla: 5.623 ± 0.082
0.54GluCys: 0.54 ± 0.02
3.055GluAsp: 3.055 ± 0.049
3.572GluGlu: 3.572 ± 0.066
2.429GluPhe: 2.429 ± 0.042
3.803GluGly: 3.803 ± 0.049
1.589GluHis: 1.589 ± 0.035
3.398GluIle: 3.398 ± 0.053
3.002GluLys: 3.002 ± 0.053
6.822GluLeu: 6.822 ± 0.088
1.564GluMet: 1.564 ± 0.028
2.157GluAsn: 2.157 ± 0.035
2.36GluPro: 2.36 ± 0.043
3.783GluGln: 3.783 ± 0.061
3.74GluArg: 3.74 ± 0.062
3.806GluSer: 3.806 ± 0.052
2.973GluThr: 2.973 ± 0.044
4.075GluVal: 4.075 ± 0.053
0.774GluTrp: 0.774 ± 0.023
1.805GluTyr: 1.805 ± 0.045
0.0GluXaa: 0.0 ± 0.0
Phe
3.136PheAla: 3.136 ± 0.048
0.492PheCys: 0.492 ± 0.019
2.705PheAsp: 2.705 ± 0.05
2.375PheGlu: 2.375 ± 0.044
1.602PhePhe: 1.602 ± 0.04
3.077PheGly: 3.077 ± 0.057
0.838PheHis: 0.838 ± 0.027
2.235PheIle: 2.235 ± 0.051
1.693PheLys: 1.693 ± 0.035
3.514PheLeu: 3.514 ± 0.056
1.023PheMet: 1.023 ± 0.03
1.776PheAsn: 1.776 ± 0.039
1.523PhePro: 1.523 ± 0.035
1.462PheGln: 1.462 ± 0.028
1.871PheArg: 1.871 ± 0.036
3.073PheSer: 3.073 ± 0.048
2.141PheThr: 2.141 ± 0.042
2.717PheVal: 2.717 ± 0.042
0.525PheTrp: 0.525 ± 0.022
1.281PheTyr: 1.281 ± 0.03
0.0PheXaa: 0.0 ± 0.0
Gly
6.025GlyAla: 6.025 ± 0.08
0.919GlyCys: 0.919 ± 0.028
4.16GlyAsp: 4.16 ± 0.073
4.286GlyGlu: 4.286 ± 0.054
3.301GlyPhe: 3.301 ± 0.054
5.308GlyGly: 5.308 ± 0.085
1.596GlyHis: 1.596 ± 0.031
4.337GlyIle: 4.337 ± 0.062
3.51GlyLys: 3.51 ± 0.053
7.34GlyLeu: 7.34 ± 0.09
2.173GlyMet: 2.173 ± 0.046
2.799GlyAsn: 2.799 ± 0.1
2.081GlyPro: 2.081 ± 0.036
2.779GlyGln: 2.779 ± 0.048
3.636GlyArg: 3.636 ± 0.058
4.637GlySer: 4.637 ± 0.105
3.673GlyThr: 3.673 ± 0.136
5.668GlyVal: 5.668 ± 0.068
1.104GlyTrp: 1.104 ± 0.03
2.596GlyTyr: 2.596 ± 0.051
0.0GlyXaa: 0.0 ± 0.0
His
1.71HisAla: 1.71 ± 0.042
0.362HisCys: 0.362 ± 0.017
1.136HisAsp: 1.136 ± 0.024
1.199HisGlu: 1.199 ± 0.027
1.099HisPhe: 1.099 ± 0.029
1.649HisGly: 1.649 ± 0.039
0.792HisHis: 0.792 ± 0.027
1.341HisIle: 1.341 ± 0.029
0.846HisLys: 0.846 ± 0.028
2.409HisLeu: 2.409 ± 0.048
0.558HisMet: 0.558 ± 0.021
0.878HisAsn: 0.878 ± 0.024
1.311HisPro: 1.311 ± 0.03
1.122HisGln: 1.122 ± 0.033
1.335HisArg: 1.335 ± 0.032
1.5HisSer: 1.5 ± 0.037
1.12HisThr: 1.12 ± 0.035
1.31HisVal: 1.31 ± 0.028
0.411HisTrp: 0.411 ± 0.017
0.954HisTyr: 0.954 ± 0.029
0.0HisXaa: 0.0 ± 0.0
Ile
5.57IleAla: 5.57 ± 0.066
0.616IleCys: 0.616 ± 0.02
3.698IleAsp: 3.698 ± 0.048
3.962IleGlu: 3.962 ± 0.056
1.726IlePhe: 1.726 ± 0.034
4.213IleGly: 4.213 ± 0.064
1.289IleHis: 1.289 ± 0.032
2.926IleIle: 2.926 ± 0.04
2.715IleLys: 2.715 ± 0.044
4.962IleLeu: 4.962 ± 0.066
1.274IleMet: 1.274 ± 0.033
2.638IleAsn: 2.638 ± 0.045
2.747IlePro: 2.747 ± 0.041
2.309IleGln: 2.309 ± 0.04
3.116IleArg: 3.116 ± 0.049
4.037IleSer: 4.037 ± 0.055
3.572IleThr: 3.572 ± 0.099
3.767IleVal: 3.767 ± 0.051
0.605IleTrp: 0.605 ± 0.021
1.517IleTyr: 1.517 ± 0.032
0.0IleXaa: 0.0 ± 0.0
Lys
4.403LysAla: 4.403 ± 0.073
0.27LysCys: 0.27 ± 0.014
2.313LysAsp: 2.313 ± 0.043
2.642LysGlu: 2.642 ± 0.049
1.177LysPhe: 1.177 ± 0.028
2.961LysGly: 2.961 ± 0.054
1.051LysHis: 1.051 ± 0.031
2.308LysIle: 2.308 ± 0.045
2.213LysLys: 2.213 ± 0.055
4.587LysLeu: 4.587 ± 0.063
1.071LysMet: 1.071 ± 0.026
1.591LysAsn: 1.591 ± 0.037
2.322LysPro: 2.322 ± 0.052
2.423LysGln: 2.423 ± 0.045
2.55LysArg: 2.55 ± 0.049
2.584LysSer: 2.584 ± 0.045
2.366LysThr: 2.366 ± 0.044
3.149LysVal: 3.149 ± 0.055
0.434LysTrp: 0.434 ± 0.02
1.07LysTyr: 1.07 ± 0.026
0.0LysXaa: 0.0 ± 0.0
Leu
9.743LeuAla: 9.743 ± 0.092
1.149LeuCys: 1.149 ± 0.033
6.313LeuAsp: 6.313 ± 0.079
6.308LeuGlu: 6.308 ± 0.078
4.127LeuPhe: 4.127 ± 0.066
7.237LeuGly: 7.237 ± 0.074
2.19LeuHis: 2.19 ± 0.046
5.816LeuIle: 5.816 ± 0.075
4.901LeuLys: 4.901 ± 0.058
10.75LeuLeu: 10.75 ± 0.142
2.781LeuMet: 2.781 ± 0.058
4.317LeuAsn: 4.317 ± 0.054
5.13LeuPro: 5.13 ± 0.075
4.871LeuGln: 4.871 ± 0.078
5.494LeuArg: 5.494 ± 0.07
7.498LeuSer: 7.498 ± 0.078
5.372LeuThr: 5.372 ± 0.067
7.045LeuVal: 7.045 ± 0.08
1.234LeuTrp: 1.234 ± 0.031
2.737LeuTyr: 2.737 ± 0.042
0.0LeuXaa: 0.0 ± 0.0
Met
2.706MetAla: 2.706 ± 0.049
0.21MetCys: 0.21 ± 0.012
1.463MetAsp: 1.463 ± 0.035
1.507MetGlu: 1.507 ± 0.032
0.76MetPhe: 0.76 ± 0.023
1.925MetGly: 1.925 ± 0.038
0.511MetHis: 0.511 ± 0.019
1.374MetIle: 1.374 ± 0.034
1.187MetLys: 1.187 ± 0.029
2.791MetLeu: 2.791 ± 0.053
0.78MetMet: 0.78 ± 0.026
1.16MetAsn: 1.16 ± 0.028
1.316MetPro: 1.316 ± 0.032
1.085MetGln: 1.085 ± 0.031
1.343MetArg: 1.343 ± 0.034
1.844MetSer: 1.844 ± 0.036
1.48MetThr: 1.48 ± 0.03
1.905MetVal: 1.905 ± 0.039
0.236MetTrp: 0.236 ± 0.013
0.527MetTyr: 0.527 ± 0.019
0.0MetXaa: 0.0 ± 0.0
Asn
3.375AsnAla: 3.375 ± 0.061
0.39AsnCys: 0.39 ± 0.018
2.165AsnAsp: 2.165 ± 0.049
2.163AsnGlu: 2.163 ± 0.036
1.354AsnPhe: 1.354 ± 0.034
3.063AsnGly: 3.063 ± 0.061
0.925AsnHis: 0.925 ± 0.025
2.308AsnIle: 2.308 ± 0.039
1.605AsnLys: 1.605 ± 0.038
3.94AsnLeu: 3.94 ± 0.041
0.937AsnMet: 0.937 ± 0.023
1.602AsnAsn: 1.602 ± 0.039
2.213AsnPro: 2.213 ± 0.04
1.956AsnGln: 1.956 ± 0.04
2.221AsnArg: 2.221 ± 0.04
2.329AsnSer: 2.329 ± 0.041
2.17AsnThr: 2.17 ± 0.048
2.493AsnVal: 2.493 ± 0.044
0.618AsnTrp: 0.618 ± 0.038
1.169AsnTyr: 1.169 ± 0.034
0.0AsnXaa: 0.0 ± 0.0
Pro
4.021ProAla: 4.021 ± 0.059
0.335ProCys: 0.335 ± 0.019
2.954ProAsp: 2.954 ± 0.05
3.339ProGlu: 3.339 ± 0.058
1.799ProPhe: 1.799 ± 0.038
3.17ProGly: 3.17 ± 0.053
0.997ProHis: 0.997 ± 0.026
2.402ProIle: 2.402 ± 0.042
1.842ProLys: 1.842 ± 0.038
4.456ProLeu: 4.456 ± 0.064
1.119ProMet: 1.119 ± 0.028
1.687ProAsn: 1.687 ± 0.035
1.644ProPro: 1.644 ± 0.042
1.915ProGln: 1.915 ± 0.04
1.803ProArg: 1.803 ± 0.034
2.53ProSer: 2.53 ± 0.044
2.194ProThr: 2.194 ± 0.041
3.612ProVal: 3.612 ± 0.063
0.598ProTrp: 0.598 ± 0.019
1.271ProTyr: 1.271 ± 0.025
0.0ProXaa: 0.0 ± 0.0
Gln
4.69GlnAla: 4.69 ± 0.07
0.436GlnCys: 0.436 ± 0.02
2.282GlnAsp: 2.282 ± 0.038
2.527GlnGlu: 2.527 ± 0.048
1.747GlnPhe: 1.747 ± 0.034
3.027GlnGly: 3.027 ± 0.045
1.235GlnHis: 1.235 ± 0.034
2.434GlnIle: 2.434 ± 0.043
1.845GlnLys: 1.845 ± 0.038
5.099GlnLeu: 5.099 ± 0.071
1.085GlnMet: 1.085 ± 0.027
1.532GlnAsn: 1.532 ± 0.032
2.101GlnPro: 2.101 ± 0.037
3.216GlnGln: 3.216 ± 0.072
2.897GlnArg: 2.897 ± 0.056
2.839GlnSer: 2.839 ± 0.048
2.155GlnThr: 2.155 ± 0.041
3.135GlnVal: 3.135 ± 0.05
0.772GlnTrp: 0.772 ± 0.023
1.433GlnTyr: 1.433 ± 0.039
0.0GlnXaa: 0.0 ± 0.0
Arg
4.177ArgAla: 4.177 ± 0.06
0.589ArgCys: 0.589 ± 0.02
2.876ArgAsp: 2.876 ± 0.048
3.315ArgGlu: 3.315 ± 0.054
2.561ArgPhe: 2.561 ± 0.046
2.969ArgGly: 2.969 ± 0.05
1.374ArgHis: 1.374 ± 0.033
3.423ArgIle: 3.423 ± 0.051
2.428ArgLys: 2.428 ± 0.044
5.84ArgLeu: 5.84 ± 0.084
1.476ArgMet: 1.476 ± 0.036
2.21ArgAsn: 2.21 ± 0.039
1.994ArgPro: 1.994 ± 0.038
2.603ArgGln: 2.603 ± 0.052
3.0ArgArg: 3.0 ± 0.046
3.305ArgSer: 3.305 ± 0.059
2.553ArgThr: 2.553 ± 0.046
3.767ArgVal: 3.767 ± 0.044
0.863ArgTrp: 0.863 ± 0.024
2.086ArgTyr: 2.086 ± 0.045
0.0ArgXaa: 0.0 ± 0.0
Ser
6.045SerAla: 6.045 ± 0.069
0.588SerCys: 0.588 ± 0.02
3.969SerAsp: 3.969 ± 0.082
3.76SerGlu: 3.76 ± 0.055
2.546SerPhe: 2.546 ± 0.049
5.484SerGly: 5.484 ± 0.115
1.443SerHis: 1.443 ± 0.03
3.958SerIle: 3.958 ± 0.068
2.663SerLys: 2.663 ± 0.049
6.823SerLeu: 6.823 ± 0.082
1.734SerMet: 1.734 ± 0.039
2.513SerAsn: 2.513 ± 0.05
2.632SerPro: 2.632 ± 0.042
2.636SerGln: 2.636 ± 0.044
3.343SerArg: 3.343 ± 0.053
4.442SerSer: 4.442 ± 0.08
3.306SerThr: 3.306 ± 0.044
4.824SerVal: 4.824 ± 0.072
0.89SerTrp: 0.89 ± 0.026
1.813SerTyr: 1.813 ± 0.072
0.0SerXaa: 0.0 ± 0.0
Thr
4.734ThrAla: 4.734 ± 0.168
0.481ThrCys: 0.481 ± 0.02
2.986ThrAsp: 2.986 ± 0.075
2.912ThrGlu: 2.912 ± 0.043
1.898ThrPhe: 1.898 ± 0.038
4.26ThrGly: 4.26 ± 0.105
1.204ThrHis: 1.204 ± 0.032
2.927ThrIle: 2.927 ± 0.051
1.737ThrLys: 1.737 ± 0.038
6.238ThrLeu: 6.238 ± 0.086
1.153ThrMet: 1.153 ± 0.029
1.784ThrAsn: 1.784 ± 0.039
2.811ThrPro: 2.811 ± 0.045
2.213ThrGln: 2.213 ± 0.042
2.617ThrArg: 2.617 ± 0.048
3.193ThrSer: 3.193 ± 0.091
2.806ThrThr: 2.806 ± 0.107
3.707ThrVal: 3.707 ± 0.072
0.564ThrTrp: 0.564 ± 0.02
1.414ThrTyr: 1.414 ± 0.041
0.0ThrXaa: 0.0 ± 0.0
Val
6.78ValAla: 6.78 ± 0.075
0.741ValCys: 0.741 ± 0.024
4.557ValAsp: 4.557 ± 0.076
4.494ValGlu: 4.494 ± 0.062
2.793ValPhe: 2.793 ± 0.063
4.824ValGly: 4.824 ± 0.07
1.372ValHis: 1.372 ± 0.03
4.268ValIle: 4.268 ± 0.061
3.023ValLys: 3.023 ± 0.061
7.168ValLeu: 7.168 ± 0.091
1.938ValMet: 1.938 ± 0.042
2.841ValAsn: 2.841 ± 0.04
2.941ValPro: 2.941 ± 0.054
2.567ValGln: 2.567 ± 0.037
3.586ValArg: 3.586 ± 0.053
4.824ValSer: 4.824 ± 0.062
3.885ValThr: 3.885 ± 0.088
5.681ValVal: 5.681 ± 0.077
0.769ValTrp: 0.769 ± 0.025
1.859ValTyr: 1.859 ± 0.042
0.0ValXaa: 0.0 ± 0.0
Trp
0.923TrpAla: 0.923 ± 0.025
0.176TrpCys: 0.176 ± 0.01
0.676TrpAsp: 0.676 ± 0.021
0.668TrpGlu: 0.668 ± 0.023
0.574TrpPhe: 0.574 ± 0.022
0.917TrpGly: 0.917 ± 0.027
0.357TrpHis: 0.357 ± 0.017
0.718TrpIle: 0.718 ± 0.021
0.479TrpLys: 0.479 ± 0.017
1.753TrpLeu: 1.753 ± 0.039
0.384TrpMet: 0.384 ± 0.015
0.512TrpAsn: 0.512 ± 0.021
0.53TrpPro: 0.53 ± 0.019
0.863TrpGln: 0.863 ± 0.025
0.771TrpArg: 0.771 ± 0.023
0.883TrpSer: 0.883 ± 0.037
0.486TrpThr: 0.486 ± 0.016
0.979TrpVal: 0.979 ± 0.028
0.216TrpTrp: 0.216 ± 0.014
0.374TrpTyr: 0.374 ± 0.017
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.201TyrAla: 2.201 ± 0.035
0.354TyrCys: 0.354 ± 0.017
1.849TyrAsp: 1.849 ± 0.077
1.738TyrGlu: 1.738 ± 0.039
1.361TyrPhe: 1.361 ± 0.033
2.206TyrGly: 2.206 ± 0.046
0.73TyrHis: 0.73 ± 0.023
1.439TyrIle: 1.439 ± 0.037
1.054TyrLys: 1.054 ± 0.028
3.364TyrLeu: 3.364 ± 0.058
0.631TyrMet: 0.631 ± 0.022
1.116TyrAsn: 1.116 ± 0.032
1.31TyrPro: 1.31 ± 0.034
1.548TyrGln: 1.548 ± 0.039
1.924TyrArg: 1.924 ± 0.037
2.041TyrSer: 2.041 ± 0.043
1.426TyrThr: 1.426 ± 0.033
1.885TyrVal: 1.885 ± 0.037
0.478TyrTrp: 0.478 ± 0.018
0.993TyrTyr: 0.993 ± 0.039
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 4119 proteins (1482787 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