Amino acid dipepetide frequency for Desulfovibrio sp. FSS-1

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
15.534AlaAla: 15.534 ± 0.193
1.912AlaCys: 1.912 ± 0.044
5.509AlaAsp: 5.509 ± 0.073
6.306AlaGlu: 6.306 ± 0.075
4.45AlaPhe: 4.45 ± 0.067
10.756AlaGly: 10.756 ± 0.131
2.199AlaHis: 2.199 ± 0.038
3.784AlaIle: 3.784 ± 0.059
4.213AlaLys: 4.213 ± 0.073
15.718AlaLeu: 15.718 ± 0.176
3.499AlaMet: 3.499 ± 0.049
2.354AlaAsn: 2.354 ± 0.045
6.303AlaPro: 6.303 ± 0.091
4.781AlaGln: 4.781 ± 0.084
10.494AlaArg: 10.494 ± 0.135
6.633AlaSer: 6.633 ± 0.084
4.442AlaThr: 4.442 ± 0.062
9.358AlaVal: 9.358 ± 0.095
1.856AlaTrp: 1.856 ± 0.043
2.437AlaTyr: 2.437 ± 0.044
0.0AlaXaa: 0.0 ± 0.0
Cys
1.458CysAla: 1.458 ± 0.039
0.247CysCys: 0.247 ± 0.014
0.58CysAsp: 0.58 ± 0.019
0.6CysGlu: 0.6 ± 0.023
0.482CysPhe: 0.482 ± 0.018
1.226CysGly: 1.226 ± 0.037
0.357CysHis: 0.357 ± 0.021
0.462CysIle: 0.462 ± 0.019
0.365CysLys: 0.365 ± 0.02
1.608CysLeu: 1.608 ± 0.04
0.308CysMet: 0.308 ± 0.015
0.308CysAsn: 0.308 ± 0.015
0.891CysPro: 0.891 ± 0.032
0.369CysGln: 0.369 ± 0.016
1.023CysArg: 1.023 ± 0.031
0.698CysSer: 0.698 ± 0.024
0.558CysThr: 0.558 ± 0.022
0.963CysVal: 0.963 ± 0.027
0.174CysTrp: 0.174 ± 0.014
0.264CysTyr: 0.264 ± 0.014
0.0CysXaa: 0.0 ± 0.0
Asp
6.365AspAla: 6.365 ± 0.07
0.618AspCys: 0.618 ± 0.025
2.343AspAsp: 2.343 ± 0.047
3.119AspGlu: 3.119 ± 0.057
2.344AspPhe: 2.344 ± 0.046
4.079AspGly: 4.079 ± 0.064
1.098AspHis: 1.098 ± 0.031
2.622AspIle: 2.622 ± 0.045
2.054AspLys: 2.054 ± 0.042
5.813AspLeu: 5.813 ± 0.065
1.392AspMet: 1.392 ± 0.031
1.19AspAsn: 1.19 ± 0.034
3.716AspPro: 3.716 ± 0.064
1.673AspGln: 1.673 ± 0.036
3.337AspArg: 3.337 ± 0.058
2.295AspSer: 2.295 ± 0.043
2.134AspThr: 2.134 ± 0.044
3.943AspVal: 3.943 ± 0.053
0.748AspTrp: 0.748 ± 0.026
1.467AspTyr: 1.467 ± 0.036
0.0AspXaa: 0.0 ± 0.0
Glu
8.355GluAla: 8.355 ± 0.088
0.59GluCys: 0.59 ± 0.022
3.026GluAsp: 3.026 ± 0.056
4.149GluGlu: 4.149 ± 0.082
1.946GluPhe: 1.946 ± 0.041
4.593GluGly: 4.593 ± 0.065
1.402GluHis: 1.402 ± 0.035
2.838GluIle: 2.838 ± 0.053
2.703GluLys: 2.703 ± 0.064
6.504GluLeu: 6.504 ± 0.085
1.574GluMet: 1.574 ± 0.034
1.69GluAsn: 1.69 ± 0.039
2.817GluPro: 2.817 ± 0.05
2.102GluGln: 2.102 ± 0.045
5.427GluArg: 5.427 ± 0.082
2.998GluSer: 2.998 ± 0.052
3.048GluThr: 3.048 ± 0.053
3.956GluVal: 3.956 ± 0.067
0.568GluTrp: 0.568 ± 0.021
1.18GluTyr: 1.18 ± 0.03
0.0GluXaa: 0.0 ± 0.0
Phe
4.175PheAla: 4.175 ± 0.055
0.548PheCys: 0.548 ± 0.022
2.15PheAsp: 2.15 ± 0.045
2.311PheGlu: 2.311 ± 0.04
1.752PhePhe: 1.752 ± 0.039
3.086PheGly: 3.086 ± 0.051
0.863PheHis: 0.863 ± 0.025
1.424PheIle: 1.424 ± 0.035
1.431PheLys: 1.431 ± 0.035
4.48PheLeu: 4.48 ± 0.062
0.891PheMet: 0.891 ± 0.029
1.048PheAsn: 1.048 ± 0.028
1.81PhePro: 1.81 ± 0.038
1.216PheGln: 1.216 ± 0.033
2.251PheArg: 2.251 ± 0.045
2.346PheSer: 2.346 ± 0.046
2.258PheThr: 2.258 ± 0.05
2.805PheVal: 2.805 ± 0.052
0.615PheTrp: 0.615 ± 0.022
1.005PheTyr: 1.005 ± 0.034
0.0PheXaa: 0.0 ± 0.0
Gly
8.796GlyAla: 8.796 ± 0.124
1.264GlyCys: 1.264 ± 0.034
3.943GlyAsp: 3.943 ± 0.055
5.028GlyGlu: 5.028 ± 0.062
3.602GlyPhe: 3.602 ± 0.054
7.097GlyGly: 7.097 ± 0.101
1.893GlyHis: 1.893 ± 0.042
3.421GlyIle: 3.421 ± 0.054
3.701GlyLys: 3.701 ± 0.059
10.311GlyLeu: 10.311 ± 0.105
2.525GlyMet: 2.525 ± 0.041
1.879GlyAsn: 1.879 ± 0.044
3.807GlyPro: 3.807 ± 0.064
3.342GlyGln: 3.342 ± 0.066
6.846GlyArg: 6.846 ± 0.088
4.152GlySer: 4.152 ± 0.065
3.386GlyThr: 3.386 ± 0.057
6.977GlyVal: 6.977 ± 0.089
1.156GlyTrp: 1.156 ± 0.028
2.234GlyTyr: 2.234 ± 0.047
0.0GlyXaa: 0.0 ± 0.0
His
2.496HisAla: 2.496 ± 0.053
0.327HisCys: 0.327 ± 0.015
1.123HisAsp: 1.123 ± 0.033
1.175HisGlu: 1.175 ± 0.026
0.924HisPhe: 0.924 ± 0.027
2.058HisGly: 2.058 ± 0.043
0.57HisHis: 0.57 ± 0.022
0.785HisIle: 0.785 ± 0.027
0.669HisLys: 0.669 ± 0.021
2.235HisLeu: 2.235 ± 0.051
0.457HisMet: 0.457 ± 0.019
0.482HisAsn: 0.482 ± 0.022
1.386HisPro: 1.386 ± 0.034
0.656HisGln: 0.656 ± 0.023
1.254HisArg: 1.254 ± 0.031
0.906HisSer: 0.906 ± 0.029
0.804HisThr: 0.804 ± 0.025
1.499HisVal: 1.499 ± 0.036
0.278HisTrp: 0.278 ± 0.016
0.547HisTyr: 0.547 ± 0.022
0.0HisXaa: 0.0 ± 0.0
Ile
4.016IleAla: 4.016 ± 0.059
0.442IleCys: 0.442 ± 0.02
2.063IleAsp: 2.063 ± 0.04
2.406IleGlu: 2.406 ± 0.048
1.396IlePhe: 1.396 ± 0.039
2.903IleGly: 2.903 ± 0.055
0.835IleHis: 0.835 ± 0.025
1.637IleIle: 1.637 ± 0.046
1.51IleLys: 1.51 ± 0.044
4.562IleLeu: 4.562 ± 0.062
0.932IleMet: 0.932 ± 0.029
1.118IleAsn: 1.118 ± 0.036
2.301IlePro: 2.301 ± 0.038
1.209IleGln: 1.209 ± 0.032
2.583IleArg: 2.583 ± 0.049
2.107IleSer: 2.107 ± 0.05
2.016IleThr: 2.016 ± 0.048
3.086IleVal: 3.086 ± 0.052
0.373IleTrp: 0.373 ± 0.018
0.929IleTyr: 0.929 ± 0.029
0.0IleXaa: 0.0 ± 0.0
Lys
5.093LysAla: 5.093 ± 0.07
0.334LysCys: 0.334 ± 0.017
2.261LysAsp: 2.261 ± 0.047
2.254LysGlu: 2.254 ± 0.053
0.974LysPhe: 0.974 ± 0.031
3.22LysGly: 3.22 ± 0.056
0.68LysHis: 0.68 ± 0.024
1.528LysIle: 1.528 ± 0.04
1.726LysLys: 1.726 ± 0.046
3.581LysLeu: 3.581 ± 0.062
0.899LysMet: 0.899 ± 0.029
1.111LysAsn: 1.111 ± 0.029
2.222LysPro: 2.222 ± 0.051
0.987LysGln: 0.987 ± 0.033
2.418LysArg: 2.418 ± 0.038
1.912LysSer: 1.912 ± 0.045
2.014LysThr: 2.014 ± 0.045
2.615LysVal: 2.615 ± 0.057
0.334LysTrp: 0.334 ± 0.016
0.805LysTyr: 0.805 ± 0.026
0.0LysXaa: 0.0 ± 0.0
Leu
17.328LeuAla: 17.328 ± 0.188
1.546LeuCys: 1.546 ± 0.036
7.005LeuAsp: 7.005 ± 0.081
7.869LeuGlu: 7.869 ± 0.095
4.285LeuPhe: 4.285 ± 0.063
9.686LeuGly: 9.686 ± 0.092
2.184LeuHis: 2.184 ± 0.05
3.497LeuIle: 3.497 ± 0.06
4.208LeuLys: 4.208 ± 0.06
11.715LeuLeu: 11.715 ± 0.123
2.275LeuMet: 2.275 ± 0.044
2.459LeuAsn: 2.459 ± 0.047
6.259LeuPro: 6.259 ± 0.077
2.645LeuGln: 2.645 ± 0.048
7.937LeuArg: 7.937 ± 0.085
6.672LeuSer: 6.672 ± 0.074
5.749LeuThr: 5.749 ± 0.075
7.59LeuVal: 7.59 ± 0.085
1.265LeuTrp: 1.265 ± 0.036
2.28LeuTyr: 2.28 ± 0.041
0.0LeuXaa: 0.0 ± 0.0
Met
3.514MetAla: 3.514 ± 0.048
0.206MetCys: 0.206 ± 0.014
1.603MetAsp: 1.603 ± 0.036
1.631MetGlu: 1.631 ± 0.034
0.662MetPhe: 0.662 ± 0.025
2.13MetGly: 2.13 ± 0.045
0.444MetHis: 0.444 ± 0.016
0.944MetIle: 0.944 ± 0.029
0.914MetLys: 0.914 ± 0.029
2.551MetLeu: 2.551 ± 0.041
0.463MetMet: 0.463 ± 0.019
0.84MetAsn: 0.84 ± 0.025
1.39MetPro: 1.39 ± 0.033
0.661MetGln: 0.661 ± 0.024
1.792MetArg: 1.792 ± 0.037
1.423MetSer: 1.423 ± 0.033
1.409MetThr: 1.409 ± 0.029
1.732MetVal: 1.732 ± 0.034
0.175MetTrp: 0.175 ± 0.012
0.362MetTyr: 0.362 ± 0.016
0.0MetXaa: 0.0 ± 0.0
Asn
2.749AsnAla: 2.749 ± 0.051
0.321AsnCys: 0.321 ± 0.016
1.036AsnAsp: 1.036 ± 0.032
1.084AsnGlu: 1.084 ± 0.034
0.903AsnPhe: 0.903 ± 0.029
1.574AsnGly: 1.574 ± 0.038
0.489AsnHis: 0.489 ± 0.018
1.269AsnIle: 1.269 ± 0.034
0.891AsnLys: 0.891 ± 0.027
2.968AsnLeu: 2.968 ± 0.051
0.644AsnMet: 0.644 ± 0.025
0.68AsnAsn: 0.68 ± 0.025
1.872AsnPro: 1.872 ± 0.037
0.779AsnGln: 0.779 ± 0.024
1.624AsnArg: 1.624 ± 0.038
1.083AsnSer: 1.083 ± 0.031
1.163AsnThr: 1.163 ± 0.031
1.897AsnVal: 1.897 ± 0.041
0.331AsnTrp: 0.331 ± 0.014
0.657AsnTyr: 0.657 ± 0.023
0.0AsnXaa: 0.0 ± 0.0
Pro
6.648ProAla: 6.648 ± 0.094
0.677ProCys: 0.677 ± 0.024
3.57ProAsp: 3.57 ± 0.052
4.538ProGlu: 4.538 ± 0.071
1.997ProPhe: 1.997 ± 0.043
6.398ProGly: 6.398 ± 0.091
1.032ProHis: 1.032 ± 0.029
1.359ProIle: 1.359 ± 0.035
1.738ProLys: 1.738 ± 0.04
5.474ProLeu: 5.474 ± 0.07
1.223ProMet: 1.223 ± 0.032
0.977ProAsn: 0.977 ± 0.028
3.178ProPro: 3.178 ± 0.067
1.686ProGln: 1.686 ± 0.039
3.434ProArg: 3.434 ± 0.059
2.76ProSer: 2.76 ± 0.047
1.913ProThr: 1.913 ± 0.046
4.389ProVal: 4.389 ± 0.069
0.838ProTrp: 0.838 ± 0.027
1.213ProTyr: 1.213 ± 0.033
0.0ProXaa: 0.0 ± 0.0
Gln
5.629GlnAla: 5.629 ± 0.089
0.308GlnCys: 0.308 ± 0.017
1.96GlnAsp: 1.96 ± 0.039
2.07GlnGlu: 2.07 ± 0.043
0.869GlnPhe: 0.869 ± 0.023
3.377GlnGly: 3.377 ± 0.056
0.57GlnHis: 0.57 ± 0.02
1.141GlnIle: 1.141 ± 0.034
1.076GlnLys: 1.076 ± 0.034
2.627GlnLeu: 2.627 ± 0.049
0.749GlnMet: 0.749 ± 0.023
0.843GlnAsn: 0.843 ± 0.031
1.554GlnPro: 1.554 ± 0.043
1.004GlnGln: 1.004 ± 0.037
1.946GlnArg: 1.946 ± 0.047
1.557GlnSer: 1.557 ± 0.039
1.64GlnThr: 1.64 ± 0.039
2.235GlnVal: 2.235 ± 0.046
0.359GlnTrp: 0.359 ± 0.018
0.632GlnTyr: 0.632 ± 0.024
0.0GlnXaa: 0.0 ± 0.0
Arg
8.306ArgAla: 8.306 ± 0.108
0.846ArgCys: 0.846 ± 0.033
3.889ArgAsp: 3.889 ± 0.056
5.574ArgGlu: 5.574 ± 0.083
3.262ArgPhe: 3.262 ± 0.053
4.798ArgGly: 4.798 ± 0.068
1.757ArgHis: 1.757 ± 0.039
3.323ArgIle: 3.323 ± 0.049
2.699ArgLys: 2.699 ± 0.045
8.91ArgLeu: 8.91 ± 0.099
1.989ArgMet: 1.989 ± 0.036
1.651ArgAsn: 1.651 ± 0.035
3.824ArgPro: 3.824 ± 0.062
2.781ArgGln: 2.781 ± 0.052
5.651ArgArg: 5.651 ± 0.078
3.368ArgSer: 3.368 ± 0.055
3.061ArgThr: 3.061 ± 0.044
5.079ArgVal: 5.079 ± 0.07
0.856ArgTrp: 0.856 ± 0.029
1.659ArgTyr: 1.659 ± 0.036
0.0ArgXaa: 0.0 ± 0.0
Ser
5.254SerAla: 5.254 ± 0.072
0.694SerCys: 0.694 ± 0.026
2.314SerAsp: 2.314 ± 0.049
2.6SerGlu: 2.6 ± 0.053
2.184SerPhe: 2.184 ± 0.047
5.615SerGly: 5.615 ± 0.073
1.047SerHis: 1.047 ± 0.024
2.276SerIle: 2.276 ± 0.046
1.678SerLys: 1.678 ± 0.043
6.461SerLeu: 6.461 ± 0.072
1.48SerMet: 1.48 ± 0.034
1.073SerAsn: 1.073 ± 0.032
3.08SerPro: 3.08 ± 0.053
1.713SerGln: 1.713 ± 0.035
3.878SerArg: 3.878 ± 0.054
2.739SerSer: 2.739 ± 0.064
2.327SerThr: 2.327 ± 0.049
3.904SerVal: 3.904 ± 0.059
0.721SerTrp: 0.721 ± 0.026
1.214SerTyr: 1.214 ± 0.03
0.0SerXaa: 0.0 ± 0.0
Thr
5.259ThrAla: 5.259 ± 0.073
0.535ThrCys: 0.535 ± 0.022
2.127ThrAsp: 2.127 ± 0.046
2.02ThrGlu: 2.02 ± 0.039
1.728ThrPhe: 1.728 ± 0.039
4.806ThrGly: 4.806 ± 0.062
0.902ThrHis: 0.902 ± 0.025
1.832ThrIle: 1.832 ± 0.04
1.349ThrLys: 1.349 ± 0.036
5.803ThrLeu: 5.803 ± 0.068
1.017ThrMet: 1.017 ± 0.03
1.041ThrAsn: 1.041 ± 0.031
3.364ThrPro: 3.364 ± 0.055
1.289ThrGln: 1.289 ± 0.03
3.014ThrArg: 3.014 ± 0.046
2.254ThrSer: 2.254 ± 0.046
2.013ThrThr: 2.013 ± 0.049
3.653ThrVal: 3.653 ± 0.053
0.571ThrTrp: 0.571 ± 0.023
1.091ThrTyr: 1.091 ± 0.035
0.0ThrXaa: 0.0 ± 0.0
Val
7.925ValAla: 7.925 ± 0.092
1.042ValCys: 1.042 ± 0.028
3.949ValAsp: 3.949 ± 0.054
4.759ValGlu: 4.759 ± 0.065
3.167ValPhe: 3.167 ± 0.053
5.095ValGly: 5.095 ± 0.064
1.54ValHis: 1.54 ± 0.037
2.975ValIle: 2.975 ± 0.047
2.716ValLys: 2.716 ± 0.064
8.903ValLeu: 8.903 ± 0.093
1.72ValMet: 1.72 ± 0.037
2.212ValAsn: 2.212 ± 0.041
3.413ValPro: 3.413 ± 0.06
2.116ValGln: 2.116 ± 0.048
5.581ValArg: 5.581 ± 0.084
4.418ValSer: 4.418 ± 0.067
3.93ValThr: 3.93 ± 0.057
5.791ValVal: 5.791 ± 0.077
0.881ValTrp: 0.881 ± 0.027
1.707ValTyr: 1.707 ± 0.037
0.0ValXaa: 0.0 ± 0.0
Trp
1.233TrpAla: 1.233 ± 0.034
0.152TrpCys: 0.152 ± 0.01
0.639TrpAsp: 0.639 ± 0.023
0.731TrpGlu: 0.731 ± 0.026
0.509TrpPhe: 0.509 ± 0.02
0.916TrpGly: 0.916 ± 0.029
0.272TrpHis: 0.272 ± 0.014
0.499TrpIle: 0.499 ± 0.02
0.525TrpLys: 0.525 ± 0.02
1.628TrpLeu: 1.628 ± 0.039
0.347TrpMet: 0.347 ± 0.019
0.429TrpAsn: 0.429 ± 0.018
0.651TrpPro: 0.651 ± 0.024
0.408TrpGln: 0.408 ± 0.017
1.126TrpArg: 1.126 ± 0.036
0.701TrpSer: 0.701 ± 0.022
0.72TrpThr: 0.72 ± 0.028
0.705TrpVal: 0.705 ± 0.024
0.23TrpTrp: 0.23 ± 0.014
0.241TrpTyr: 0.241 ± 0.014
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.403TyrAla: 2.403 ± 0.046
0.332TyrCys: 0.332 ± 0.016
1.262TyrAsp: 1.262 ± 0.036
1.245TyrGlu: 1.245 ± 0.032
1.029TyrPhe: 1.029 ± 0.027
1.945TyrGly: 1.945 ± 0.045
0.497TyrHis: 0.497 ± 0.019
0.808TyrIle: 0.808 ± 0.027
0.805TyrLys: 0.805 ± 0.025
2.602TyrLeu: 2.602 ± 0.046
0.463TyrMet: 0.463 ± 0.019
0.63TyrAsn: 0.63 ± 0.026
1.202TyrPro: 1.202 ± 0.033
0.731TyrGln: 0.731 ± 0.022
1.665TyrArg: 1.665 ± 0.04
1.232TyrSer: 1.232 ± 0.034
1.083TyrThr: 1.083 ± 0.029
1.658TyrVal: 1.658 ± 0.036
0.334TyrTrp: 0.334 ± 0.018
0.726TyrTyr: 0.726 ± 0.025
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 3975 proteins (1316110 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