Amino acid dipepetide frequency for Epulopiscium sp. Nuni2H_MBin003

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
3.706AlaAla: 3.706 ± 0.119
0.679AlaCys: 0.679 ± 0.039
3.535AlaAsp: 3.535 ± 0.085
3.754AlaGlu: 3.754 ± 0.085
2.464AlaPhe: 2.464 ± 0.069
4.283AlaGly: 4.283 ± 0.114
1.037AlaHis: 1.037 ± 0.043
6.579AlaIle: 6.579 ± 0.114
4.888AlaLys: 4.888 ± 0.115
5.875AlaLeu: 5.875 ± 0.115
1.979AlaMet: 1.979 ± 0.064
3.52AlaAsn: 3.52 ± 0.087
1.703AlaPro: 1.703 ± 0.053
2.266AlaGln: 2.266 ± 0.061
2.099AlaArg: 2.099 ± 0.067
3.522AlaSer: 3.522 ± 0.107
4.347AlaThr: 4.347 ± 0.101
4.269AlaVal: 4.269 ± 0.103
0.295AlaTrp: 0.295 ± 0.027
2.399AlaTyr: 2.399 ± 0.073
0.0AlaXaa: 0.0 ± 0.0
Cys
0.74CysAla: 0.74 ± 0.045
0.179CysCys: 0.179 ± 0.023
0.712CysAsp: 0.712 ± 0.036
0.721CysGlu: 0.721 ± 0.038
0.449CysPhe: 0.449 ± 0.028
0.995CysGly: 0.995 ± 0.047
0.215CysHis: 0.215 ± 0.021
1.221CysIle: 1.221 ± 0.056
0.818CysLys: 0.818 ± 0.046
0.868CysLeu: 0.868 ± 0.042
0.304CysMet: 0.304 ± 0.022
0.696CysAsn: 0.696 ± 0.038
0.428CysPro: 0.428 ± 0.033
0.244CysGln: 0.244 ± 0.022
0.289CysArg: 0.289 ± 0.022
0.696CysSer: 0.696 ± 0.044
0.725CysThr: 0.725 ± 0.043
0.826CysVal: 0.826 ± 0.039
0.065CysTrp: 0.065 ± 0.013
0.42CysTyr: 0.42 ± 0.032
0.0CysXaa: 0.0 ± 0.0
Asp
3.518AspAla: 3.518 ± 0.087
0.582AspCys: 0.582 ± 0.031
3.116AspAsp: 3.116 ± 0.104
4.403AspGlu: 4.403 ± 0.102
2.553AspPhe: 2.553 ± 0.077
3.352AspGly: 3.352 ± 0.087
0.601AspHis: 0.601 ± 0.035
7.342AspIle: 7.342 ± 0.11
4.846AspLys: 4.846 ± 0.119
4.854AspLeu: 4.854 ± 0.105
1.887AspMet: 1.887 ± 0.065
3.343AspAsn: 3.343 ± 0.095
1.366AspPro: 1.366 ± 0.062
1.056AspGln: 1.056 ± 0.042
1.672AspArg: 1.672 ± 0.052
2.801AspSer: 2.801 ± 0.082
3.689AspThr: 3.689 ± 0.072
3.969AspVal: 3.969 ± 0.09
0.371AspTrp: 0.371 ± 0.027
2.627AspTyr: 2.627 ± 0.083
0.0AspXaa: 0.0 ± 0.0
Glu
3.975GluAla: 3.975 ± 0.085
0.7GluCys: 0.7 ± 0.041
4.094GluAsp: 4.094 ± 0.121
5.424GluGlu: 5.424 ± 0.141
3.002GluPhe: 3.002 ± 0.074
3.36GluGly: 3.36 ± 0.078
1.202GluHis: 1.202 ± 0.05
7.032GluIle: 7.032 ± 0.126
4.867GluLys: 4.867 ± 0.121
6.667GluLeu: 6.667 ± 0.125
1.899GluMet: 1.899 ± 0.059
4.302GluAsn: 4.302 ± 0.095
1.665GluPro: 1.665 ± 0.083
2.962GluGln: 2.962 ± 0.087
2.144GluArg: 2.144 ± 0.07
2.81GluSer: 2.81 ± 0.089
3.191GluThr: 3.191 ± 0.082
5.272GluVal: 5.272 ± 0.116
0.519GluTrp: 0.519 ± 0.034
3.242GluTyr: 3.242 ± 0.09
0.002GluXaa: 0.002 ± 0.002
Phe
2.57PheAla: 2.57 ± 0.081
0.561PheCys: 0.561 ± 0.032
2.555PheAsp: 2.555 ± 0.075
2.58PheGlu: 2.58 ± 0.062
1.577PhePhe: 1.577 ± 0.06
2.73PheGly: 2.73 ± 0.093
0.521PheHis: 0.521 ± 0.033
4.087PheIle: 4.087 ± 0.106
2.951PheLys: 2.951 ± 0.068
3.423PheLeu: 3.423 ± 0.081
1.239PheMet: 1.239 ± 0.05
2.428PheAsn: 2.428 ± 0.079
1.039PhePro: 1.039 ± 0.048
0.835PheGln: 0.835 ± 0.04
1.324PheArg: 1.324 ± 0.054
2.877PheSer: 2.877 ± 0.077
2.46PheThr: 2.46 ± 0.07
2.677PheVal: 2.677 ± 0.082
0.24PheTrp: 0.24 ± 0.021
1.598PheTyr: 1.598 ± 0.061
0.0PheXaa: 0.0 ± 0.0
Gly
4.389GlyAla: 4.389 ± 0.121
0.934GlyCys: 0.934 ± 0.042
3.242GlyAsp: 3.242 ± 0.09
4.005GlyGlu: 4.005 ± 0.097
2.877GlyPhe: 2.877 ± 0.075
3.997GlyGly: 3.997 ± 0.12
1.1GlyHis: 1.1 ± 0.043
6.456GlyIle: 6.456 ± 0.127
4.378GlyLys: 4.378 ± 0.107
5.088GlyLeu: 5.088 ± 0.105
1.87GlyMet: 1.87 ± 0.061
2.77GlyAsn: 2.77 ± 0.091
1.153GlyPro: 1.153 ± 0.077
1.724GlyGln: 1.724 ± 0.055
2.057GlyArg: 2.057 ± 0.068
3.25GlySer: 3.25 ± 0.083
3.729GlyThr: 3.729 ± 0.083
5.042GlyVal: 5.042 ± 0.111
0.352GlyTrp: 0.352 ± 0.027
2.892GlyTyr: 2.892 ± 0.082
0.0GlyXaa: 0.0 ± 0.0
His
0.913HisAla: 0.913 ± 0.043
0.242HisCys: 0.242 ± 0.02
0.772HisAsp: 0.772 ± 0.037
0.877HisGlu: 0.877 ± 0.044
0.712HisPhe: 0.712 ± 0.04
0.957HisGly: 0.957 ± 0.047
0.327HisHis: 0.327 ± 0.026
1.733HisIle: 1.733 ± 0.064
1.26HisLys: 1.26 ± 0.044
1.436HisLeu: 1.436 ± 0.048
0.443HisMet: 0.443 ± 0.03
1.06HisAsn: 1.06 ± 0.05
0.698HisPro: 0.698 ± 0.037
0.559HisGln: 0.559 ± 0.033
0.533HisArg: 0.533 ± 0.032
1.016HisSer: 1.016 ± 0.044
0.97HisThr: 0.97 ± 0.038
0.86HisVal: 0.86 ± 0.039
0.095HisTrp: 0.095 ± 0.014
0.615HisTyr: 0.615 ± 0.038
0.0HisXaa: 0.0 ± 0.0
Ile
6.667IleAla: 6.667 ± 0.12
1.338IleCys: 1.338 ± 0.053
6.45IleAsp: 6.45 ± 0.127
7.557IleGlu: 7.557 ± 0.146
4.011IlePhe: 4.011 ± 0.11
6.124IleGly: 6.124 ± 0.123
1.362IleHis: 1.362 ± 0.055
9.914IleIle: 9.914 ± 0.171
7.27IleLys: 7.27 ± 0.135
9.288IleLeu: 9.288 ± 0.152
2.479IleMet: 2.479 ± 0.071
5.82IleAsn: 5.82 ± 0.107
3.394IlePro: 3.394 ± 0.081
2.774IleGln: 2.774 ± 0.081
3.126IleArg: 3.126 ± 0.079
7.061IleSer: 7.061 ± 0.116
5.801IleThr: 5.801 ± 0.11
6.712IleVal: 6.712 ± 0.136
0.514IleTrp: 0.514 ± 0.037
3.765IleTyr: 3.765 ± 0.08
0.0IleXaa: 0.0 ± 0.0
Lys
3.935LysAla: 3.935 ± 0.105
0.723LysCys: 0.723 ± 0.041
4.515LysAsp: 4.515 ± 0.104
6.117LysGlu: 6.117 ± 0.112
2.597LysPhe: 2.597 ± 0.077
3.866LysGly: 3.866 ± 0.087
1.191LysHis: 1.191 ± 0.046
6.908LysIle: 6.908 ± 0.121
5.79LysLys: 5.79 ± 0.146
6.69LysLeu: 6.69 ± 0.135
2.165LysMet: 2.165 ± 0.073
4.665LysAsn: 4.665 ± 0.121
1.981LysPro: 1.981 ± 0.063
3.0LysGln: 3.0 ± 0.092
2.445LysArg: 2.445 ± 0.076
3.887LysSer: 3.887 ± 0.08
3.815LysThr: 3.815 ± 0.103
4.947LysVal: 4.947 ± 0.101
0.438LysTrp: 0.438 ± 0.032
3.615LysTyr: 3.615 ± 0.083
0.0LysXaa: 0.0 ± 0.0
Leu
6.163LeuAla: 6.163 ± 0.123
1.128LeuCys: 1.128 ± 0.048
5.818LeuAsp: 5.818 ± 0.121
6.747LeuGlu: 6.747 ± 0.115
3.257LeuPhe: 3.257 ± 0.088
6.05LeuGly: 6.05 ± 0.119
1.324LeuHis: 1.324 ± 0.051
7.972LeuIle: 7.972 ± 0.131
6.317LeuLys: 6.317 ± 0.114
7.901LeuLeu: 7.901 ± 0.152
2.277LeuMet: 2.277 ± 0.054
5.07LeuAsn: 5.07 ± 0.091
3.037LeuPro: 3.037 ± 0.068
2.953LeuGln: 2.953 ± 0.075
2.842LeuArg: 2.842 ± 0.076
6.678LeuSer: 6.678 ± 0.131
5.215LeuThr: 5.215 ± 0.096
5.885LeuVal: 5.885 ± 0.117
0.508LeuTrp: 0.508 ± 0.031
3.417LeuTyr: 3.417 ± 0.082
0.0LeuXaa: 0.0 ± 0.0
Met
1.983MetAla: 1.983 ± 0.064
0.301MetCys: 0.301 ± 0.027
1.513MetAsp: 1.513 ± 0.054
1.602MetGlu: 1.602 ± 0.066
1.048MetPhe: 1.048 ± 0.045
1.758MetGly: 1.758 ± 0.064
0.527MetHis: 0.527 ± 0.029
2.285MetIle: 2.285 ± 0.065
1.984MetLys: 1.984 ± 0.056
2.757MetLeu: 2.757 ± 0.072
0.757MetMet: 0.757 ± 0.038
1.345MetAsn: 1.345 ± 0.05
1.216MetPro: 1.216 ± 0.049
1.374MetGln: 1.374 ± 0.055
0.9MetArg: 0.9 ± 0.044
1.798MetSer: 1.798 ± 0.062
1.45MetThr: 1.45 ± 0.054
1.733MetVal: 1.733 ± 0.066
0.192MetTrp: 0.192 ± 0.021
1.056MetTyr: 1.056 ± 0.048
0.0MetXaa: 0.0 ± 0.0
Asn
3.29AsnAla: 3.29 ± 0.079
0.634AsnCys: 0.634 ± 0.042
2.538AsnAsp: 2.538 ± 0.074
3.318AsnGlu: 3.318 ± 0.097
2.373AsnPhe: 2.373 ± 0.066
3.141AsnGly: 3.141 ± 0.086
0.788AsnHis: 0.788 ± 0.039
6.855AsnIle: 6.855 ± 0.115
4.604AsnLys: 4.604 ± 0.1
5.603AsnLeu: 5.603 ± 0.108
1.648AsnMet: 1.648 ± 0.059
3.826AsnAsn: 3.826 ± 0.106
2.116AsnPro: 2.116 ± 0.07
1.899AsnGln: 1.899 ± 0.065
1.847AsnArg: 1.847 ± 0.066
3.514AsnSer: 3.514 ± 0.092
3.733AsnThr: 3.733 ± 0.089
3.592AsnVal: 3.592 ± 0.072
0.352AsnTrp: 0.352 ± 0.027
2.382AsnTyr: 2.382 ± 0.074
0.0AsnXaa: 0.0 ± 0.0
Pro
1.748ProAla: 1.748 ± 0.065
0.32ProCys: 0.32 ± 0.027
1.762ProAsp: 1.762 ± 0.063
2.171ProGlu: 2.171 ± 0.108
1.429ProPhe: 1.429 ± 0.058
1.353ProGly: 1.353 ± 0.056
0.624ProHis: 0.624 ± 0.036
3.212ProIle: 3.212 ± 0.077
1.927ProLys: 1.927 ± 0.057
2.589ProLeu: 2.589 ± 0.061
0.812ProMet: 0.812 ± 0.048
1.819ProAsn: 1.819 ± 0.066
0.784ProPro: 0.784 ± 0.056
1.039ProGln: 1.039 ± 0.055
0.883ProArg: 0.883 ± 0.042
1.832ProSer: 1.832 ± 0.068
2.175ProThr: 2.175 ± 0.075
2.173ProVal: 2.173 ± 0.071
0.217ProTrp: 0.217 ± 0.022
1.37ProTyr: 1.37 ± 0.054
0.0ProXaa: 0.0 ± 0.0
Gln
2.093GlnAla: 2.093 ± 0.064
0.263GlnCys: 0.263 ± 0.025
1.836GlnAsp: 1.836 ± 0.055
2.159GlnGlu: 2.159 ± 0.066
1.221GlnPhe: 1.221 ± 0.05
1.745GlnGly: 1.745 ± 0.11
0.538GlnHis: 0.538 ± 0.032
3.556GlnIle: 3.556 ± 0.096
2.586GlnLys: 2.586 ± 0.068
2.991GlnLeu: 2.991 ± 0.07
0.957GlnMet: 0.957 ± 0.041
2.152GlnAsn: 2.152 ± 0.062
0.845GlnPro: 0.845 ± 0.042
1.589GlnGln: 1.589 ± 0.062
1.008GlnArg: 1.008 ± 0.047
1.787GlnSer: 1.787 ± 0.064
1.958GlnThr: 1.958 ± 0.067
2.205GlnVal: 2.205 ± 0.066
0.167GlnTrp: 0.167 ± 0.016
1.357GlnTyr: 1.357 ± 0.055
0.0GlnXaa: 0.0 ± 0.0
Arg
2.085ArgAla: 2.085 ± 0.066
0.356ArgCys: 0.356 ± 0.026
1.76ArgAsp: 1.76 ± 0.063
2.304ArgGlu: 2.304 ± 0.07
1.322ArgPhe: 1.322 ± 0.054
1.912ArgGly: 1.912 ± 0.063
0.592ArgHis: 0.592 ± 0.033
2.879ArgIle: 2.879 ± 0.068
2.243ArgLys: 2.243 ± 0.077
2.943ArgLeu: 2.943 ± 0.08
1.001ArgMet: 1.001 ± 0.046
1.691ArgAsn: 1.691 ± 0.058
1.018ArgPro: 1.018 ± 0.047
1.273ArgGln: 1.273 ± 0.05
1.231ArgArg: 1.231 ± 0.056
1.469ArgSer: 1.469 ± 0.049
1.697ArgThr: 1.697 ± 0.061
2.203ArgVal: 2.203 ± 0.068
0.202ArgTrp: 0.202 ± 0.021
1.469ArgTyr: 1.469 ± 0.048
0.0ArgXaa: 0.0 ± 0.0
Ser
3.794SerAla: 3.794 ± 0.088
0.618SerCys: 0.618 ± 0.034
3.236SerAsp: 3.236 ± 0.086
3.598SerGlu: 3.598 ± 0.077
2.399SerPhe: 2.399 ± 0.075
3.994SerGly: 3.994 ± 0.09
1.142SerHis: 1.142 ± 0.05
6.294SerIle: 6.294 ± 0.123
4.174SerLys: 4.174 ± 0.106
5.476SerLeu: 5.476 ± 0.118
1.604SerMet: 1.604 ± 0.054
3.398SerAsn: 3.398 ± 0.084
1.775SerPro: 1.775 ± 0.058
1.979SerGln: 1.979 ± 0.058
1.914SerArg: 1.914 ± 0.059
4.075SerSer: 4.075 ± 0.121
3.836SerThr: 3.836 ± 0.087
3.678SerVal: 3.678 ± 0.08
0.335SerTrp: 0.335 ± 0.027
2.584SerTyr: 2.584 ± 0.076
0.0SerXaa: 0.0 ± 0.0
Thr
3.693ThrAla: 3.693 ± 0.094
0.632ThrCys: 0.632 ± 0.043
3.316ThrAsp: 3.316 ± 0.08
3.364ThrGlu: 3.364 ± 0.091
2.373ThrPhe: 2.373 ± 0.067
4.072ThrGly: 4.072 ± 0.106
1.233ThrHis: 1.233 ± 0.054
5.976ThrIle: 5.976 ± 0.113
4.216ThrLys: 4.216 ± 0.094
6.003ThrLeu: 6.003 ± 0.112
1.357ThrMet: 1.357 ± 0.053
3.389ThrAsn: 3.389 ± 0.084
2.39ThrPro: 2.39 ± 0.076
2.009ThrGln: 2.009 ± 0.073
1.826ThrArg: 1.826 ± 0.055
3.613ThrSer: 3.613 ± 0.09
4.098ThrThr: 4.098 ± 0.099
3.672ThrVal: 3.672 ± 0.093
0.367ThrTrp: 0.367 ± 0.029
2.272ThrTyr: 2.272 ± 0.074
0.0ThrXaa: 0.0 ± 0.0
Val
5.053ValAla: 5.053 ± 0.097
0.904ValCys: 0.904 ± 0.045
4.207ValAsp: 4.207 ± 0.102
4.58ValGlu: 4.58 ± 0.097
2.542ValPhe: 2.542 ± 0.069
4.686ValGly: 4.686 ± 0.107
0.997ValHis: 0.997 ± 0.045
6.456ValIle: 6.456 ± 0.113
4.538ValLys: 4.538 ± 0.098
5.839ValLeu: 5.839 ± 0.11
1.722ValMet: 1.722 ± 0.065
3.508ValAsn: 3.508 ± 0.089
2.184ValPro: 2.184 ± 0.068
1.899ValGln: 1.899 ± 0.062
2.0ValArg: 2.0 ± 0.064
4.355ValSer: 4.355 ± 0.089
4.125ValThr: 4.125 ± 0.091
5.105ValVal: 5.105 ± 0.115
0.384ValTrp: 0.384 ± 0.03
2.647ValTyr: 2.647 ± 0.063
0.0ValXaa: 0.0 ± 0.0
Trp
0.39TrpAla: 0.39 ± 0.028
0.08TrpCys: 0.08 ± 0.011
0.384TrpAsp: 0.384 ± 0.03
0.426TrpGlu: 0.426 ± 0.028
0.249TrpPhe: 0.249 ± 0.025
0.443TrpGly: 0.443 ± 0.029
0.122TrpHis: 0.122 ± 0.015
0.586TrpIle: 0.586 ± 0.038
0.375TrpLys: 0.375 ± 0.03
0.508TrpLeu: 0.508 ± 0.04
0.137TrpMet: 0.137 ± 0.015
0.314TrpAsn: 0.314 ± 0.026
0.12TrpPro: 0.12 ± 0.014
0.266TrpGln: 0.266 ± 0.027
0.19TrpArg: 0.19 ± 0.019
0.344TrpSer: 0.344 ± 0.022
0.253TrpThr: 0.253 ± 0.025
0.407TrpVal: 0.407 ± 0.029
0.08TrpTrp: 0.08 ± 0.012
0.278TrpTyr: 0.278 ± 0.021
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.492TyrAla: 2.492 ± 0.064
0.44TyrCys: 0.44 ± 0.025
2.588TyrAsp: 2.588 ± 0.074
2.626TyrGlu: 2.626 ± 0.081
1.817TyrPhe: 1.817 ± 0.058
2.485TyrGly: 2.485 ± 0.084
0.635TyrHis: 0.635 ± 0.031
4.085TyrIle: 4.085 ± 0.091
3.257TyrLys: 3.257 ± 0.091
3.761TyrLeu: 3.761 ± 0.076
1.039TyrMet: 1.039 ± 0.048
2.936TyrAsn: 2.936 ± 0.071
1.328TyrPro: 1.328 ± 0.054
1.313TyrGln: 1.313 ± 0.053
1.32TyrArg: 1.32 ± 0.051
2.517TyrSer: 2.517 ± 0.075
2.603TyrThr: 2.603 ± 0.072
2.502TyrVal: 2.502 ± 0.075
0.261TyrTrp: 0.261 ± 0.02
1.99TyrTyr: 1.99 ± 0.076
0.0TyrXaa: 0.0 ± 0.0
Xaa
0.002XaaAla: 0.002 ± 0.002
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 1656 proteins (525598 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