Amino acid dipepetide frequency for Chelonobacter oris

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
9.378AlaAla: 9.378 ± 0.175
1.063AlaCys: 1.063 ± 0.043
5.368AlaAsp: 5.368 ± 0.096
6.343AlaGlu: 6.343 ± 0.107
3.65AlaPhe: 3.65 ± 0.093
6.493AlaGly: 6.493 ± 0.129
1.558AlaHis: 1.558 ± 0.043
6.007AlaIle: 6.007 ± 0.122
5.047AlaLys: 5.047 ± 0.082
10.943AlaLeu: 10.943 ± 0.16
2.381AlaMet: 2.381 ± 0.059
3.459AlaAsn: 3.459 ± 0.081
2.707AlaPro: 2.707 ± 0.062
4.4AlaGln: 4.4 ± 0.085
3.781AlaArg: 3.781 ± 0.08
4.133AlaSer: 4.133 ± 0.097
4.224AlaThr: 4.224 ± 0.091
7.698AlaVal: 7.698 ± 0.123
0.961AlaTrp: 0.961 ± 0.04
2.636AlaTyr: 2.636 ± 0.06
0.0AlaXaa: 0.0 ± 0.0
Cys
0.857CysAla: 0.857 ± 0.037
0.199CysCys: 0.199 ± 0.015
0.585CysAsp: 0.585 ± 0.027
0.571CysGlu: 0.571 ± 0.035
0.497CysPhe: 0.497 ± 0.026
1.165CysGly: 1.165 ± 0.042
0.313CysHis: 0.313 ± 0.027
0.603CysIle: 0.603 ± 0.03
0.385CysLys: 0.385 ± 0.025
1.026CysLeu: 1.026 ± 0.037
0.176CysMet: 0.176 ± 0.014
0.371CysAsn: 0.371 ± 0.022
0.457CysPro: 0.457 ± 0.026
0.373CysGln: 0.373 ± 0.021
0.714CysArg: 0.714 ± 0.037
0.608CysSer: 0.608 ± 0.027
0.399CysThr: 0.399 ± 0.024
0.639CysVal: 0.639 ± 0.031
0.133CysTrp: 0.133 ± 0.013
0.389CysTyr: 0.389 ± 0.024
0.0CysXaa: 0.0 ± 0.0
Asp
3.742AspAla: 3.742 ± 0.069
0.516AspCys: 0.516 ± 0.023
2.569AspAsp: 2.569 ± 0.072
3.287AspGlu: 3.287 ± 0.076
2.475AspPhe: 2.475 ± 0.064
3.733AspGly: 3.733 ± 0.093
1.061AspHis: 1.061 ± 0.045
3.753AspIle: 3.753 ± 0.072
2.924AspLys: 2.924 ± 0.074
5.216AspLeu: 5.216 ± 0.086
1.19AspMet: 1.19 ± 0.038
2.518AspAsn: 2.518 ± 0.058
2.08AspPro: 2.08 ± 0.056
2.034AspGln: 2.034 ± 0.051
2.236AspArg: 2.236 ± 0.049
3.048AspSer: 3.048 ± 0.059
2.203AspThr: 2.203 ± 0.055
3.443AspVal: 3.443 ± 0.083
0.845AspTrp: 0.845 ± 0.037
2.311AspTyr: 2.311 ± 0.062
0.0AspXaa: 0.0 ± 0.0
Glu
4.779GluAla: 4.779 ± 0.084
0.372GluCys: 0.372 ± 0.025
2.088GluAsp: 2.088 ± 0.053
3.051GluGlu: 3.051 ± 0.08
2.117GluPhe: 2.117 ± 0.059
2.88GluGly: 2.88 ± 0.062
1.206GluHis: 1.206 ± 0.043
4.205GluIle: 4.205 ± 0.089
4.106GluLys: 4.106 ± 0.085
6.014GluLeu: 6.014 ± 0.094
1.634GluMet: 1.634 ± 0.049
3.088GluAsn: 3.088 ± 0.061
1.794GluPro: 1.794 ± 0.052
3.937GluGln: 3.937 ± 0.086
3.298GluArg: 3.298 ± 0.078
2.877GluSer: 2.877 ± 0.061
2.959GluThr: 2.959 ± 0.072
3.519GluVal: 3.519 ± 0.08
0.732GluTrp: 0.732 ± 0.033
1.601GluTyr: 1.601 ± 0.05
0.0GluXaa: 0.0 ± 0.0
Phe
3.855PheAla: 3.855 ± 0.083
0.571PheCys: 0.571 ± 0.03
2.633PheAsp: 2.633 ± 0.059
2.214PheGlu: 2.214 ± 0.061
1.905PhePhe: 1.905 ± 0.064
3.564PheGly: 3.564 ± 0.083
0.886PheHis: 0.886 ± 0.036
2.969PheIle: 2.969 ± 0.086
1.864PheLys: 1.864 ± 0.053
4.028PheLeu: 4.028 ± 0.092
0.986PheMet: 0.986 ± 0.037
2.113PheAsn: 2.113 ± 0.056
1.539PhePro: 1.539 ± 0.045
1.288PheGln: 1.288 ± 0.044
1.645PheArg: 1.645 ± 0.049
3.427PheSer: 3.427 ± 0.073
2.074PheThr: 2.074 ± 0.053
2.792PheVal: 2.792 ± 0.071
0.595PheTrp: 0.595 ± 0.032
1.484PheTyr: 1.484 ± 0.046
0.0PheXaa: 0.0 ± 0.0
Gly
5.797GlyAla: 5.797 ± 0.095
0.91GlyCys: 0.91 ± 0.038
3.445GlyAsp: 3.445 ± 0.082
4.412GlyGlu: 4.412 ± 0.093
3.364GlyPhe: 3.364 ± 0.07
5.366GlyGly: 5.366 ± 0.107
1.391GlyHis: 1.391 ± 0.048
5.661GlyIle: 5.661 ± 0.106
4.608GlyLys: 4.608 ± 0.089
7.427GlyLeu: 7.427 ± 0.11
2.073GlyMet: 2.073 ± 0.063
2.935GlyAsn: 2.935 ± 0.073
1.324GlyPro: 1.324 ± 0.047
2.671GlyGln: 2.671 ± 0.065
3.169GlyArg: 3.169 ± 0.07
4.105GlySer: 4.105 ± 0.104
3.386GlyThr: 3.386 ± 0.074
5.249GlyVal: 5.249 ± 0.1
0.963GlyTrp: 0.963 ± 0.037
2.693GlyTyr: 2.693 ± 0.07
0.0GlyXaa: 0.0 ± 0.0
His
1.648HisAla: 1.648 ± 0.044
0.359HisCys: 0.359 ± 0.024
1.145HisAsp: 1.145 ± 0.039
0.964HisGlu: 0.964 ± 0.031
1.202HisPhe: 1.202 ± 0.042
1.676HisGly: 1.676 ± 0.052
0.691HisHis: 0.691 ± 0.031
1.446HisIle: 1.446 ± 0.048
0.956HisLys: 0.956 ± 0.034
2.366HisLeu: 2.366 ± 0.069
0.42HisMet: 0.42 ± 0.022
0.986HisAsn: 0.986 ± 0.04
1.037HisPro: 1.037 ± 0.04
1.043HisGln: 1.043 ± 0.038
1.118HisArg: 1.118 ± 0.04
1.274HisSer: 1.274 ± 0.041
0.988HisThr: 0.988 ± 0.038
1.016HisVal: 1.016 ± 0.037
0.371HisTrp: 0.371 ± 0.025
1.027HisTyr: 1.027 ± 0.039
0.0HisXaa: 0.0 ± 0.0
Ile
7.162IleAla: 7.162 ± 0.111
0.79IleCys: 0.79 ± 0.035
4.046IleAsp: 4.046 ± 0.076
4.26IleGlu: 4.26 ± 0.077
2.616IlePhe: 2.616 ± 0.069
5.762IleGly: 5.762 ± 0.122
1.286IleHis: 1.286 ± 0.04
4.361IleIle: 4.361 ± 0.107
3.221IleLys: 3.221 ± 0.059
6.369IleLeu: 6.369 ± 0.114
1.404IleMet: 1.404 ± 0.052
3.075IleAsn: 3.075 ± 0.07
2.869IlePro: 2.869 ± 0.069
2.471IleGln: 2.471 ± 0.055
3.228IleArg: 3.228 ± 0.076
4.436IleSer: 4.436 ± 0.084
3.607IleThr: 3.607 ± 0.079
4.524IleVal: 4.524 ± 0.085
0.647IleTrp: 0.647 ± 0.032
1.954IleTyr: 1.954 ± 0.059
0.0IleXaa: 0.0 ± 0.0
Lys
4.83LysAla: 4.83 ± 0.093
0.418LysCys: 0.418 ± 0.025
2.142LysAsp: 2.142 ± 0.056
2.792LysGlu: 2.792 ± 0.069
1.586LysPhe: 1.586 ± 0.05
3.159LysGly: 3.159 ± 0.078
1.019LysHis: 1.019 ± 0.037
3.776LysIle: 3.776 ± 0.074
3.033LysLys: 3.033 ± 0.079
5.277LysLeu: 5.277 ± 0.098
1.576LysMet: 1.576 ± 0.043
2.696LysAsn: 2.696 ± 0.071
2.301LysPro: 2.301 ± 0.052
3.084LysGln: 3.084 ± 0.07
2.675LysArg: 2.675 ± 0.064
2.919LysSer: 2.919 ± 0.062
3.024LysThr: 3.024 ± 0.064
3.339LysVal: 3.339 ± 0.077
0.544LysTrp: 0.544 ± 0.025
1.447LysTyr: 1.447 ± 0.049
0.0LysXaa: 0.0 ± 0.0
Leu
10.466LeuAla: 10.466 ± 0.15
1.195LeuCys: 1.195 ± 0.045
5.779LeuAsp: 5.779 ± 0.104
5.404LeuGlu: 5.404 ± 0.091
4.806LeuPhe: 4.806 ± 0.104
7.389LeuGly: 7.389 ± 0.123
2.194LeuHis: 2.194 ± 0.06
6.959LeuIle: 6.959 ± 0.116
5.3LeuLys: 5.3 ± 0.084
12.36LeuLeu: 12.36 ± 0.187
2.546LeuMet: 2.546 ± 0.059
5.101LeuAsn: 5.101 ± 0.103
5.096LeuPro: 5.096 ± 0.098
5.723LeuGln: 5.723 ± 0.129
4.896LeuArg: 4.896 ± 0.087
7.692LeuSer: 7.692 ± 0.111
5.783LeuThr: 5.783 ± 0.087
6.398LeuVal: 6.398 ± 0.116
1.104LeuTrp: 1.104 ± 0.04
2.908LeuTyr: 2.908 ± 0.072
0.0LeuXaa: 0.0 ± 0.0
Met
2.389MetAla: 2.389 ± 0.059
0.197MetCys: 0.197 ± 0.015
0.982MetAsp: 0.982 ± 0.035
1.037MetGlu: 1.037 ± 0.04
0.85MetPhe: 0.85 ± 0.034
1.587MetGly: 1.587 ± 0.046
0.454MetHis: 0.454 ± 0.024
1.579MetIle: 1.579 ± 0.051
1.466MetLys: 1.466 ± 0.039
2.765MetLeu: 2.765 ± 0.063
0.729MetMet: 0.729 ± 0.039
1.1MetAsn: 1.1 ± 0.039
1.235MetPro: 1.235 ± 0.043
1.312MetGln: 1.312 ± 0.044
1.176MetArg: 1.176 ± 0.047
1.543MetSer: 1.543 ± 0.049
1.461MetThr: 1.461 ± 0.038
1.543MetVal: 1.543 ± 0.049
0.2MetTrp: 0.2 ± 0.018
0.465MetTyr: 0.465 ± 0.024
0.0MetXaa: 0.0 ± 0.0
Asn
3.75AsnAla: 3.75 ± 0.084
0.381AsnCys: 0.381 ± 0.024
2.142AsnAsp: 2.142 ± 0.056
2.214AsnGlu: 2.214 ± 0.058
1.486AsnPhe: 1.486 ± 0.046
3.609AsnGly: 3.609 ± 0.093
0.953AsnHis: 0.953 ± 0.036
3.326AsnIle: 3.326 ± 0.082
2.218AsnLys: 2.218 ± 0.061
4.465AsnLeu: 4.465 ± 0.082
1.019AsnMet: 1.019 ± 0.038
2.111AsnAsn: 2.111 ± 0.078
2.468AsnPro: 2.468 ± 0.059
2.083AsnGln: 2.083 ± 0.062
2.476AsnArg: 2.476 ± 0.062
2.487AsnSer: 2.487 ± 0.07
2.193AsnThr: 2.193 ± 0.074
2.865AsnVal: 2.865 ± 0.079
0.573AsnTrp: 0.573 ± 0.03
1.415AsnTyr: 1.415 ± 0.05
0.0AsnXaa: 0.0 ± 0.0
Pro
3.033ProAla: 3.033 ± 0.074
0.322ProCys: 0.322 ± 0.023
2.148ProAsp: 2.148 ± 0.056
2.704ProGlu: 2.704 ± 0.066
1.979ProPhe: 1.979 ± 0.058
1.968ProGly: 1.968 ± 0.052
1.192ProHis: 1.192 ± 0.044
2.644ProIle: 2.644 ± 0.063
1.881ProLys: 1.881 ± 0.045
4.537ProLeu: 4.537 ± 0.089
0.924ProMet: 0.924 ± 0.037
1.944ProAsn: 1.944 ± 0.053
1.341ProPro: 1.341 ± 0.041
2.373ProGln: 2.373 ± 0.056
1.325ProArg: 1.325 ± 0.046
2.285ProSer: 2.285 ± 0.053
2.168ProThr: 2.168 ± 0.05
2.497ProVal: 2.497 ± 0.057
0.44ProTrp: 0.44 ± 0.025
1.371ProTyr: 1.371 ± 0.045
0.0ProXaa: 0.0 ± 0.0
Gln
5.137GlnAla: 5.137 ± 0.1
0.383GlnCys: 0.383 ± 0.025
2.21GlnAsp: 2.21 ± 0.062
2.14GlnGlu: 2.14 ± 0.059
1.833GlnPhe: 1.833 ± 0.057
3.312GlnGly: 3.312 ± 0.067
1.457GlnHis: 1.457 ± 0.049
3.063GlnIle: 3.063 ± 0.07
2.488GlnLys: 2.488 ± 0.051
5.43GlnLeu: 5.43 ± 0.103
1.059GlnMet: 1.059 ± 0.042
2.065GlnAsn: 2.065 ± 0.052
2.056GlnPro: 2.056 ± 0.057
4.82GlnGln: 4.82 ± 0.128
2.973GlnArg: 2.973 ± 0.083
2.695GlnSer: 2.695 ± 0.066
2.542GlnThr: 2.542 ± 0.064
2.895GlnVal: 2.895 ± 0.062
0.724GlnTrp: 0.724 ± 0.035
1.622GlnTyr: 1.622 ± 0.049
0.0GlnXaa: 0.0 ± 0.0
Arg
3.389ArgAla: 3.389 ± 0.076
0.486ArgCys: 0.486 ± 0.023
2.424ArgAsp: 2.424 ± 0.064
2.851ArgGlu: 2.851 ± 0.07
2.683ArgPhe: 2.683 ± 0.063
2.628ArgGly: 2.628 ± 0.063
1.449ArgHis: 1.449 ± 0.048
3.405ArgIle: 3.405 ± 0.068
2.324ArgLys: 2.324 ± 0.054
5.876ArgLeu: 5.876 ± 0.123
1.09ArgMet: 1.09 ± 0.038
2.05ArgAsn: 2.05 ± 0.057
1.686ArgPro: 1.686 ± 0.048
3.162ArgGln: 3.162 ± 0.082
2.759ArgArg: 2.759 ± 0.076
2.469ArgSer: 2.469 ± 0.066
2.374ArgThr: 2.374 ± 0.061
2.841ArgVal: 2.841 ± 0.072
0.61ArgTrp: 0.61 ± 0.029
2.077ArgTyr: 2.077 ± 0.053
0.0ArgXaa: 0.0 ± 0.0
Ser
6.19SerAla: 6.19 ± 0.098
0.551SerCys: 0.551 ± 0.029
3.137SerAsp: 3.137 ± 0.071
3.37SerGlu: 3.37 ± 0.073
2.334SerPhe: 2.334 ± 0.064
5.387SerGly: 5.387 ± 0.109
1.288SerHis: 1.288 ± 0.044
3.561SerIle: 3.561 ± 0.08
2.675SerLys: 2.675 ± 0.07
6.076SerLeu: 6.076 ± 0.09
1.374SerMet: 1.374 ± 0.042
2.257SerAsn: 2.257 ± 0.063
2.248SerPro: 2.248 ± 0.057
2.44SerGln: 2.44 ± 0.058
2.982SerArg: 2.982 ± 0.062
3.311SerSer: 3.311 ± 0.083
2.728SerThr: 2.728 ± 0.077
4.128SerVal: 4.128 ± 0.082
0.712SerTrp: 0.712 ± 0.031
1.721SerTyr: 1.721 ± 0.053
0.0SerXaa: 0.0 ± 0.0
Thr
5.786ThrAla: 5.786 ± 0.107
0.41ThrCys: 0.41 ± 0.022
2.673ThrAsp: 2.673 ± 0.07
2.962ThrGlu: 2.962 ± 0.066
2.151ThrPhe: 2.151 ± 0.054
3.479ThrGly: 3.479 ± 0.084
1.029ThrHis: 1.029 ± 0.032
3.233ThrIle: 3.233 ± 0.06
1.913ThrLys: 1.913 ± 0.05
6.327ThrLeu: 6.327 ± 0.106
0.952ThrMet: 0.952 ± 0.042
1.693ThrAsn: 1.693 ± 0.063
2.456ThrPro: 2.456 ± 0.064
2.028ThrGln: 2.028 ± 0.056
2.156ThrArg: 2.156 ± 0.051
2.512ThrSer: 2.512 ± 0.064
2.636ThrThr: 2.636 ± 0.08
3.919ThrVal: 3.919 ± 0.091
0.549ThrTrp: 0.549 ± 0.031
1.3ThrTyr: 1.3 ± 0.042
0.0ThrXaa: 0.0 ± 0.0
Val
6.416ValAla: 6.416 ± 0.109
0.767ValCys: 0.767 ± 0.036
3.443ValAsp: 3.443 ± 0.072
3.91ValGlu: 3.91 ± 0.076
2.785ValPhe: 2.785 ± 0.076
4.747ValGly: 4.747 ± 0.094
1.042ValHis: 1.042 ± 0.039
4.896ValIle: 4.896 ± 0.092
3.539ValLys: 3.539 ± 0.079
7.083ValLeu: 7.083 ± 0.122
1.721ValMet: 1.721 ± 0.054
3.016ValAsn: 3.016 ± 0.076
2.514ValPro: 2.514 ± 0.058
2.385ValGln: 2.385 ± 0.058
3.243ValArg: 3.243 ± 0.067
4.228ValSer: 4.228 ± 0.075
3.503ValThr: 3.503 ± 0.078
4.83ValVal: 4.83 ± 0.095
0.654ValTrp: 0.654 ± 0.035
1.885ValTyr: 1.885 ± 0.05
0.0ValXaa: 0.0 ± 0.0
Trp
0.866TrpAla: 0.866 ± 0.038
0.15TrpCys: 0.15 ± 0.015
0.555TrpAsp: 0.555 ± 0.029
0.521TrpGlu: 0.521 ± 0.027
0.588TrpPhe: 0.588 ± 0.028
0.761TrpGly: 0.761 ± 0.032
0.353TrpHis: 0.353 ± 0.022
0.8TrpIle: 0.8 ± 0.032
0.549TrpLys: 0.549 ± 0.028
1.776TrpLeu: 1.776 ± 0.056
0.218TrpMet: 0.218 ± 0.018
0.461TrpAsn: 0.461 ± 0.024
0.278TrpPro: 0.278 ± 0.021
1.121TrpGln: 1.121 ± 0.046
0.712TrpArg: 0.712 ± 0.035
0.587TrpSer: 0.587 ± 0.025
0.467TrpThr: 0.467 ± 0.024
0.738TrpVal: 0.738 ± 0.036
0.179TrpTrp: 0.179 ± 0.016
0.334TrpTyr: 0.334 ± 0.021
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.762TyrAla: 2.762 ± 0.069
0.422TyrCys: 0.422 ± 0.024
1.669TyrAsp: 1.669 ± 0.057
1.25TyrGlu: 1.25 ± 0.044
1.525TyrPhe: 1.525 ± 0.043
2.283TyrGly: 2.283 ± 0.062
0.912TyrHis: 0.912 ± 0.034
1.84TyrIle: 1.84 ± 0.053
1.139TyrLys: 1.139 ± 0.042
3.739TyrLeu: 3.739 ± 0.079
0.595TyrMet: 0.595 ± 0.027
1.196TyrAsn: 1.196 ± 0.042
1.595TyrPro: 1.595 ± 0.053
2.158TyrGln: 2.158 ± 0.052
2.072TyrArg: 2.072 ± 0.056
1.83TyrSer: 1.83 ± 0.054
1.443TyrThr: 1.443 ± 0.047
1.731TyrVal: 1.731 ± 0.053
0.481TyrTrp: 0.481 ± 0.03
1.128TyrTyr: 1.128 ± 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 2284 proteins (744759 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