Amino acid dipepetide frequency for Chromatiaceae bacterium No.7

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
13.957AlaAla: 13.957 ± 0.176
1.406AlaCys: 1.406 ± 0.046
5.665AlaAsp: 5.665 ± 0.08
8.142AlaGlu: 8.142 ± 0.136
3.521AlaPhe: 3.521 ± 0.072
8.663AlaGly: 8.663 ± 0.131
2.567AlaHis: 2.567 ± 0.059
6.458AlaIle: 6.458 ± 0.093
3.04AlaLys: 3.04 ± 0.064
14.464AlaLeu: 14.464 ± 0.155
2.627AlaMet: 2.627 ± 0.055
2.582AlaAsn: 2.582 ± 0.061
5.148AlaPro: 5.148 ± 0.115
5.196AlaGln: 5.196 ± 0.078
9.086AlaArg: 9.086 ± 0.124
4.962AlaSer: 4.962 ± 0.093
4.485AlaThr: 4.485 ± 0.076
7.349AlaVal: 7.349 ± 0.095
1.756AlaTrp: 1.756 ± 0.056
2.476AlaTyr: 2.476 ± 0.057
0.0AlaXaa: 0.0 ± 0.0
Cys
1.289CysAla: 1.289 ± 0.043
0.198CysCys: 0.198 ± 0.016
0.607CysAsp: 0.607 ± 0.027
0.619CysGlu: 0.619 ± 0.025
0.38CysPhe: 0.38 ± 0.022
1.017CysGly: 1.017 ± 0.035
0.316CysHis: 0.316 ± 0.023
0.563CysIle: 0.563 ± 0.027
0.264CysLys: 0.264 ± 0.017
1.303CysLeu: 1.303 ± 0.047
0.161CysMet: 0.161 ± 0.014
0.286CysAsn: 0.286 ± 0.022
0.765CysPro: 0.765 ± 0.032
0.435CysGln: 0.435 ± 0.023
0.835CysArg: 0.835 ± 0.037
0.521CysSer: 0.521 ± 0.025
0.525CysThr: 0.525 ± 0.027
0.642CysVal: 0.642 ± 0.031
0.159CysTrp: 0.159 ± 0.015
0.301CysTyr: 0.301 ± 0.022
0.0CysXaa: 0.0 ± 0.0
Asp
5.268AspAla: 5.268 ± 0.084
0.606AspCys: 0.606 ± 0.031
2.435AspAsp: 2.435 ± 0.057
3.46AspGlu: 3.46 ± 0.07
1.811AspPhe: 1.811 ± 0.045
3.897AspGly: 3.897 ± 0.072
1.224AspHis: 1.224 ± 0.037
2.398AspIle: 2.398 ± 0.06
1.299AspLys: 1.299 ± 0.044
6.964AspLeu: 6.964 ± 0.085
0.837AspMet: 0.837 ± 0.032
1.113AspAsn: 1.113 ± 0.035
4.307AspPro: 4.307 ± 0.069
2.456AspGln: 2.456 ± 0.059
4.268AspArg: 4.268 ± 0.075
1.993AspSer: 1.993 ± 0.043
2.045AspThr: 2.045 ± 0.051
2.691AspVal: 2.691 ± 0.06
1.191AspTrp: 1.191 ± 0.039
1.656AspTyr: 1.656 ± 0.049
0.0AspXaa: 0.0 ± 0.0
Glu
6.663GluAla: 6.663 ± 0.118
0.509GluCys: 0.509 ± 0.028
2.715GluAsp: 2.715 ± 0.051
3.538GluGlu: 3.538 ± 0.073
1.767GluPhe: 1.767 ± 0.052
4.648GluGly: 4.648 ± 0.084
1.585GluHis: 1.585 ± 0.047
3.896GluIle: 3.896 ± 0.08
1.321GluLys: 1.321 ± 0.052
7.468GluLeu: 7.468 ± 0.104
1.306GluMet: 1.306 ± 0.038
1.174GluAsn: 1.174 ± 0.046
3.252GluPro: 3.252 ± 0.067
3.393GluGln: 3.393 ± 0.081
7.13GluArg: 7.13 ± 0.118
3.207GluSer: 3.207 ± 0.07
3.55GluThr: 3.55 ± 0.072
4.491GluVal: 4.491 ± 0.083
0.695GluTrp: 0.695 ± 0.027
1.23GluTyr: 1.23 ± 0.038
0.0GluXaa: 0.0 ± 0.0
Phe
4.178PheAla: 4.178 ± 0.069
0.443PheCys: 0.443 ± 0.022
2.115PheAsp: 2.115 ± 0.051
2.02PheGlu: 2.02 ± 0.051
1.271PhePhe: 1.271 ± 0.041
2.984PheGly: 2.984 ± 0.067
0.689PheHis: 0.689 ± 0.029
1.903PheIle: 1.903 ± 0.05
1.053PheLys: 1.053 ± 0.037
3.058PheLeu: 3.058 ± 0.068
0.754PheMet: 0.754 ± 0.033
1.011PheAsn: 1.011 ± 0.033
1.379PhePro: 1.379 ± 0.038
1.181PheGln: 1.181 ± 0.034
1.893PheArg: 1.893 ± 0.05
1.775PheSer: 1.775 ± 0.045
1.528PheThr: 1.528 ± 0.044
2.293PheVal: 2.293 ± 0.057
0.549PheTrp: 0.549 ± 0.029
0.945PheTyr: 0.945 ± 0.036
0.0PheXaa: 0.0 ± 0.0
Gly
7.342GlyAla: 7.342 ± 0.107
1.172GlyCys: 1.172 ± 0.04
3.775GlyAsp: 3.775 ± 0.069
4.87GlyGlu: 4.87 ± 0.078
3.095GlyPhe: 3.095 ± 0.067
5.826GlyGly: 5.826 ± 0.118
1.892GlyHis: 1.892 ± 0.052
4.626GlyIle: 4.626 ± 0.082
2.459GlyLys: 2.459 ± 0.067
10.005GlyLeu: 10.005 ± 0.132
1.882GlyMet: 1.882 ± 0.046
1.644GlyAsn: 1.644 ± 0.06
3.358GlyPro: 3.358 ± 0.069
3.475GlyGln: 3.475 ± 0.071
6.335GlyArg: 6.335 ± 0.085
3.866GlySer: 3.866 ± 0.089
3.792GlyThr: 3.792 ± 0.105
5.348GlyVal: 5.348 ± 0.093
1.536GlyTrp: 1.536 ± 0.049
2.409GlyTyr: 2.409 ± 0.059
0.0GlyXaa: 0.0 ± 0.0
His
2.256HisAla: 2.256 ± 0.056
0.353HisCys: 0.353 ± 0.023
1.038HisAsp: 1.038 ± 0.035
1.246HisGlu: 1.246 ± 0.039
0.865HisPhe: 0.865 ± 0.032
1.716HisGly: 1.716 ± 0.051
0.733HisHis: 0.733 ± 0.034
0.94HisIle: 0.94 ± 0.037
0.496HisLys: 0.496 ± 0.025
3.369HisLeu: 3.369 ± 0.062
0.322HisMet: 0.322 ± 0.02
0.537HisAsn: 0.537 ± 0.026
2.011HisPro: 2.011 ± 0.048
0.953HisGln: 0.953 ± 0.035
1.847HisArg: 1.847 ± 0.048
1.004HisSer: 1.004 ± 0.033
1.046HisThr: 1.046 ± 0.03
1.182HisVal: 1.182 ± 0.039
0.534HisTrp: 0.534 ± 0.026
0.669HisTyr: 0.669 ± 0.03
0.0HisXaa: 0.0 ± 0.0
Ile
7.324IleAla: 7.324 ± 0.109
0.563IleCys: 0.563 ± 0.026
3.663IleAsp: 3.663 ± 0.066
4.81IleGlu: 4.81 ± 0.088
1.479IlePhe: 1.479 ± 0.048
4.614IleGly: 4.614 ± 0.088
1.363IleHis: 1.363 ± 0.038
2.341IleIle: 2.341 ± 0.048
1.706IleLys: 1.706 ± 0.044
6.059IleLeu: 6.059 ± 0.096
0.829IleMet: 0.829 ± 0.032
1.527IleAsn: 1.527 ± 0.047
2.952IlePro: 2.952 ± 0.065
2.362IleGln: 2.362 ± 0.054
4.01IleArg: 4.01 ± 0.058
2.459IleSer: 2.459 ± 0.06
2.309IleThr: 2.309 ± 0.071
2.904IleVal: 2.904 ± 0.061
0.596IleTrp: 0.596 ± 0.029
1.303IleTyr: 1.303 ± 0.04
0.0IleXaa: 0.0 ± 0.0
Lys
3.125LysAla: 3.125 ± 0.071
0.171LysCys: 0.171 ± 0.016
1.482LysAsp: 1.482 ± 0.046
1.545LysGlu: 1.545 ± 0.055
0.559LysPhe: 0.559 ± 0.027
2.324LysGly: 2.324 ± 0.06
0.664LysHis: 0.664 ± 0.029
1.473LysIle: 1.473 ± 0.049
0.968LysLys: 0.968 ± 0.043
2.615LysLeu: 2.615 ± 0.056
0.468LysMet: 0.468 ± 0.02
0.63LysAsn: 0.63 ± 0.027
1.782LysPro: 1.782 ± 0.049
1.101LysGln: 1.101 ± 0.036
2.562LysArg: 2.562 ± 0.06
1.329LysSer: 1.329 ± 0.043
1.711LysThr: 1.711 ± 0.057
1.802LysVal: 1.802 ± 0.051
0.27LysTrp: 0.27 ± 0.015
0.523LysTyr: 0.523 ± 0.025
0.0LysXaa: 0.0 ± 0.0
Leu
15.862LeuAla: 15.862 ± 0.187
1.212LeuCys: 1.212 ± 0.04
7.165LeuAsp: 7.165 ± 0.103
7.104LeuGlu: 7.104 ± 0.112
3.931LeuPhe: 3.931 ± 0.088
9.688LeuGly: 9.688 ± 0.139
2.426LeuHis: 2.426 ± 0.06
7.63LeuIle: 7.63 ± 0.108
3.959LeuLys: 3.959 ± 0.067
12.737LeuLeu: 12.737 ± 0.187
2.561LeuMet: 2.561 ± 0.052
3.122LeuAsn: 3.122 ± 0.063
6.516LeuPro: 6.516 ± 0.086
3.666LeuGln: 3.666 ± 0.07
8.597LeuArg: 8.597 ± 0.122
6.593LeuSer: 6.593 ± 0.103
5.965LeuThr: 5.965 ± 0.098
8.162LeuVal: 8.162 ± 0.113
1.6LeuTrp: 1.6 ± 0.051
2.815LeuTyr: 2.815 ± 0.066
0.0LeuXaa: 0.0 ± 0.0
Met
2.333MetAla: 2.333 ± 0.059
0.187MetCys: 0.187 ± 0.015
0.998MetAsp: 0.998 ± 0.033
1.001MetGlu: 1.001 ± 0.042
0.465MetPhe: 0.465 ± 0.026
1.521MetGly: 1.521 ± 0.047
0.402MetHis: 0.402 ± 0.023
1.103MetIle: 1.103 ± 0.041
0.66MetLys: 0.66 ± 0.026
2.186MetLeu: 2.186 ± 0.051
0.425MetMet: 0.425 ± 0.02
0.709MetAsn: 0.709 ± 0.029
1.26MetPro: 1.26 ± 0.035
0.817MetGln: 0.817 ± 0.032
1.758MetArg: 1.758 ± 0.05
1.309MetSer: 1.309 ± 0.042
1.198MetThr: 1.198 ± 0.036
1.279MetVal: 1.279 ± 0.042
0.122MetTrp: 0.122 ± 0.009
0.283MetTyr: 0.283 ± 0.02
0.0MetXaa: 0.0 ± 0.0
Asn
2.568AsnAla: 2.568 ± 0.068
0.257AsnCys: 0.257 ± 0.016
1.127AsnAsp: 1.127 ± 0.036
1.259AsnGlu: 1.259 ± 0.044
0.721AsnPhe: 0.721 ± 0.031
1.804AsnGly: 1.804 ± 0.053
0.533AsnHis: 0.533 ± 0.026
1.228AsnIle: 1.228 ± 0.043
0.613AsnLys: 0.613 ± 0.034
2.98AsnLeu: 2.98 ± 0.061
0.421AsnMet: 0.421 ± 0.023
0.601AsnAsn: 0.601 ± 0.032
1.935AsnPro: 1.935 ± 0.052
1.052AsnGln: 1.052 ± 0.038
2.118AsnArg: 2.118 ± 0.053
1.019AsnSer: 1.019 ± 0.038
1.075AsnThr: 1.075 ± 0.041
1.313AsnVal: 1.313 ± 0.042
0.374AsnTrp: 0.374 ± 0.024
0.629AsnTyr: 0.629 ± 0.032
0.0AsnXaa: 0.0 ± 0.0
Pro
5.858ProAla: 5.858 ± 0.106
0.595ProCys: 0.595 ± 0.027
3.639ProAsp: 3.639 ± 0.072
4.851ProGlu: 4.851 ± 0.093
1.928ProPhe: 1.928 ± 0.045
4.647ProGly: 4.647 ± 0.083
1.123ProHis: 1.123 ± 0.034
2.805ProIle: 2.805 ± 0.066
1.634ProLys: 1.634 ± 0.043
6.25ProLeu: 6.25 ± 0.102
1.064ProMet: 1.064 ± 0.039
1.469ProAsn: 1.469 ± 0.045
3.687ProPro: 3.687 ± 0.098
2.397ProGln: 2.397 ± 0.061
3.358ProArg: 3.358 ± 0.071
2.941ProSer: 2.941 ± 0.06
2.468ProThr: 2.468 ± 0.057
3.867ProVal: 3.867 ± 0.065
1.015ProTrp: 1.015 ± 0.041
1.404ProTyr: 1.404 ± 0.046
0.0ProXaa: 0.0 ± 0.0
Gln
5.646GlnAla: 5.646 ± 0.088
0.336GlnCys: 0.336 ± 0.022
1.936GlnAsp: 1.936 ± 0.05
2.163GlnGlu: 2.163 ± 0.055
1.075GlnPhe: 1.075 ± 0.036
3.899GlnGly: 3.899 ± 0.071
0.921GlnHis: 0.921 ± 0.031
2.575GlnIle: 2.575 ± 0.056
0.774GlnLys: 0.774 ± 0.031
3.934GlnLeu: 3.934 ± 0.075
0.905GlnMet: 0.905 ± 0.031
0.712GlnAsn: 0.712 ± 0.032
2.352GlnPro: 2.352 ± 0.06
1.733GlnGln: 1.733 ± 0.064
3.899GlnArg: 3.899 ± 0.083
1.988GlnSer: 1.988 ± 0.054
2.293GlnThr: 2.293 ± 0.063
3.272GlnVal: 3.272 ± 0.061
0.468GlnTrp: 0.468 ± 0.026
0.76GlnTyr: 0.76 ± 0.029
0.0GlnXaa: 0.0 ± 0.0
Arg
8.627ArgAla: 8.627 ± 0.107
0.894ArgCys: 0.894 ± 0.034
3.693ArgAsp: 3.693 ± 0.07
4.686ArgGlu: 4.686 ± 0.087
3.226ArgPhe: 3.226 ± 0.064
4.772ArgGly: 4.772 ± 0.082
2.041ArgHis: 2.041 ± 0.043
4.676ArgIle: 4.676 ± 0.092
1.741ArgLys: 1.741 ± 0.047
12.164ArgLeu: 12.164 ± 0.179
1.571ArgMet: 1.571 ± 0.043
1.695ArgAsn: 1.695 ± 0.045
4.404ArgPro: 4.404 ± 0.085
3.433ArgGln: 3.433 ± 0.064
6.866ArgArg: 6.866 ± 0.119
3.413ArgSer: 3.413 ± 0.07
3.158ArgThr: 3.158 ± 0.066
5.195ArgVal: 5.195 ± 0.085
1.324ArgTrp: 1.324 ± 0.043
2.422ArgTyr: 2.422 ± 0.056
0.0ArgXaa: 0.0 ± 0.0
Ser
5.464SerAla: 5.464 ± 0.094
0.53SerCys: 0.53 ± 0.025
2.386SerAsp: 2.386 ± 0.059
2.969SerGlu: 2.969 ± 0.059
1.741SerPhe: 1.741 ± 0.054
4.753SerGly: 4.753 ± 0.109
1.117SerHis: 1.117 ± 0.037
2.491SerIle: 2.491 ± 0.052
1.228SerLys: 1.228 ± 0.04
6.147SerLeu: 6.147 ± 0.094
0.971SerMet: 0.971 ± 0.037
1.156SerAsn: 1.156 ± 0.038
3.103SerPro: 3.103 ± 0.068
1.861SerGln: 1.861 ± 0.053
3.243SerArg: 3.243 ± 0.066
2.531SerSer: 2.531 ± 0.067
2.226SerThr: 2.226 ± 0.057
2.947SerVal: 2.947 ± 0.062
0.66SerTrp: 0.66 ± 0.031
1.092SerTyr: 1.092 ± 0.039
0.0SerXaa: 0.0 ± 0.0
Thr
5.319ThrAla: 5.319 ± 0.109
0.494ThrCys: 0.494 ± 0.028
2.323ThrAsp: 2.323 ± 0.05
2.684ThrGlu: 2.684 ± 0.058
1.416ThrPhe: 1.416 ± 0.04
4.167ThrGly: 4.167 ± 0.125
1.138ThrHis: 1.138 ± 0.037
2.233ThrIle: 2.233 ± 0.065
1.083ThrLys: 1.083 ± 0.041
6.33ThrLeu: 6.33 ± 0.096
0.683ThrMet: 0.683 ± 0.028
1.041ThrAsn: 1.041 ± 0.037
3.229ThrPro: 3.229 ± 0.063
1.959ThrGln: 1.959 ± 0.053
3.055ThrArg: 3.055 ± 0.06
2.169ThrSer: 2.169 ± 0.048
2.088ThrThr: 2.088 ± 0.071
2.929ThrVal: 2.929 ± 0.064
0.665ThrTrp: 0.665 ± 0.025
1.039ThrTyr: 1.039 ± 0.04
0.0ThrXaa: 0.0 ± 0.0
Val
6.753ValAla: 6.753 ± 0.101
0.759ValCys: 0.759 ± 0.035
3.263ValAsp: 3.263 ± 0.058
4.424ValGlu: 4.424 ± 0.079
2.338ValPhe: 2.338 ± 0.054
4.688ValGly: 4.688 ± 0.085
1.426ValHis: 1.426 ± 0.046
4.01ValIle: 4.01 ± 0.066
1.946ValLys: 1.946 ± 0.052
7.595ValLeu: 7.595 ± 0.116
1.504ValMet: 1.504 ± 0.045
1.724ValAsn: 1.724 ± 0.051
3.219ValPro: 3.219 ± 0.057
2.341ValGln: 2.341 ± 0.049
5.248ValArg: 5.248 ± 0.073
3.522ValSer: 3.522 ± 0.066
2.873ValThr: 2.873 ± 0.066
4.497ValVal: 4.497 ± 0.096
0.944ValTrp: 0.944 ± 0.036
1.615ValTyr: 1.615 ± 0.049
0.0ValXaa: 0.0 ± 0.0
Trp
1.223TrpAla: 1.223 ± 0.04
0.198TrpCys: 0.198 ± 0.015
0.586TrpAsp: 0.586 ± 0.026
0.771TrpGlu: 0.771 ± 0.027
0.527TrpPhe: 0.527 ± 0.027
1.118TrpGly: 1.118 ± 0.041
0.341TrpHis: 0.341 ± 0.021
0.839TrpIle: 0.839 ± 0.028
0.355TrpLys: 0.355 ± 0.024
2.41TrpLeu: 2.41 ± 0.067
0.345TrpMet: 0.345 ± 0.018
0.317TrpAsn: 0.317 ± 0.021
0.816TrpPro: 0.816 ± 0.036
0.73TrpGln: 0.73 ± 0.033
1.376TrpArg: 1.376 ± 0.047
0.878TrpSer: 0.878 ± 0.039
0.619TrpThr: 0.619 ± 0.031
1.13TrpVal: 1.13 ± 0.041
0.257TrpTrp: 0.257 ± 0.019
0.322TrpTyr: 0.322 ± 0.021
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.498TyrAla: 2.498 ± 0.055
0.302TyrCys: 0.302 ± 0.021
1.307TyrAsp: 1.307 ± 0.04
1.374TyrGlu: 1.374 ± 0.044
0.91TyrPhe: 0.91 ± 0.033
1.963TyrGly: 1.963 ± 0.055
0.618TyrHis: 0.618 ± 0.028
0.988TyrIle: 0.988 ± 0.038
0.502TyrLys: 0.502 ± 0.028
3.27TyrLeu: 3.27 ± 0.069
0.377TyrMet: 0.377 ± 0.023
0.576TyrAsn: 0.576 ± 0.025
1.524TyrPro: 1.524 ± 0.047
1.1TyrGln: 1.1 ± 0.035
2.517TyrArg: 2.517 ± 0.059
1.135TyrSer: 1.135 ± 0.042
1.091TyrThr: 1.091 ± 0.04
1.394TyrVal: 1.394 ± 0.041
0.443TyrTrp: 0.443 ± 0.028
0.683TyrTyr: 0.683 ± 0.028
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 2609 proteins (829857 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