Amino acid dipepetide frequency for Tetrasphaera sp. F2B08

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
19.082AlaAla: 19.082 ± 0.174
0.923AlaCys: 0.923 ± 0.031
8.203AlaAsp: 8.203 ± 0.085
8.105AlaGlu: 8.105 ± 0.098
3.425AlaPhe: 3.425 ± 0.057
12.001AlaGly: 12.001 ± 0.105
2.624AlaHis: 2.624 ± 0.054
4.72AlaIle: 4.72 ± 0.065
2.079AlaLys: 2.079 ± 0.049
13.595AlaLeu: 13.595 ± 0.141
2.791AlaMet: 2.791 ± 0.041
1.93AlaAsn: 1.93 ± 0.045
6.155AlaPro: 6.155 ± 0.089
3.562AlaGln: 3.562 ± 0.049
9.736AlaArg: 9.736 ± 0.105
6.394AlaSer: 6.394 ± 0.072
7.593AlaThr: 7.593 ± 0.084
11.823AlaVal: 11.823 ± 0.109
1.889AlaTrp: 1.889 ± 0.043
2.658AlaTyr: 2.658 ± 0.046
0.0AlaXaa: 0.0 ± 0.0
Cys
0.859CysAla: 0.859 ± 0.03
0.086CysCys: 0.086 ± 0.009
0.468CysAsp: 0.468 ± 0.02
0.375CysGlu: 0.375 ± 0.019
0.232CysPhe: 0.232 ± 0.013
0.852CysGly: 0.852 ± 0.028
0.176CysHis: 0.176 ± 0.012
0.209CysIle: 0.209 ± 0.013
0.085CysLys: 0.085 ± 0.008
0.583CysLeu: 0.583 ± 0.019
0.113CysMet: 0.113 ± 0.009
0.127CysAsn: 0.127 ± 0.011
0.439CysPro: 0.439 ± 0.021
0.158CysGln: 0.158 ± 0.011
0.571CysArg: 0.571 ± 0.023
0.424CysSer: 0.424 ± 0.018
0.47CysThr: 0.47 ± 0.02
0.562CysVal: 0.562 ± 0.023
0.091CysTrp: 0.091 ± 0.008
0.139CysTyr: 0.139 ± 0.01
0.0CysXaa: 0.0 ± 0.0
Asp
7.628AspAla: 7.628 ± 0.087
0.387AspCys: 0.387 ± 0.018
4.297AspAsp: 4.297 ± 0.065
4.509AspGlu: 4.509 ± 0.063
1.616AspPhe: 1.616 ± 0.032
6.334AspGly: 6.334 ± 0.08
1.525AspHis: 1.525 ± 0.036
2.32AspIle: 2.32 ± 0.038
0.902AspLys: 0.902 ± 0.029
7.238AspLeu: 7.238 ± 0.081
0.88AspMet: 0.88 ± 0.024
0.936AspAsn: 0.936 ± 0.029
4.747AspPro: 4.747 ± 0.06
1.609AspGln: 1.609 ± 0.035
5.34AspArg: 5.34 ± 0.068
2.735AspSer: 2.735 ± 0.045
2.957AspThr: 2.957 ± 0.054
5.818AspVal: 5.818 ± 0.07
0.936AspTrp: 0.936 ± 0.028
1.236AspTyr: 1.236 ± 0.032
0.0AspXaa: 0.0 ± 0.0
Glu
7.368GluAla: 7.368 ± 0.093
0.345GluCys: 0.345 ± 0.019
3.401GluAsp: 3.401 ± 0.056
3.533GluGlu: 3.533 ± 0.056
1.522GluPhe: 1.522 ± 0.033
4.475GluGly: 4.475 ± 0.065
1.724GluHis: 1.724 ± 0.038
2.568GluIle: 2.568 ± 0.049
1.067GluLys: 1.067 ± 0.036
6.273GluLeu: 6.273 ± 0.075
1.066GluMet: 1.066 ± 0.025
1.028GluAsn: 1.028 ± 0.029
3.443GluPro: 3.443 ± 0.059
2.25GluGln: 2.25 ± 0.046
5.834GluArg: 5.834 ± 0.086
3.098GluSer: 3.098 ± 0.047
3.14GluThr: 3.14 ± 0.051
5.475GluVal: 5.475 ± 0.078
0.887GluTrp: 0.887 ± 0.03
1.041GluTyr: 1.041 ± 0.029
0.0GluXaa: 0.0 ± 0.0
Phe
3.597PheAla: 3.597 ± 0.06
0.212PheCys: 0.212 ± 0.014
2.008PheAsp: 2.008 ± 0.037
1.564PheGlu: 1.564 ± 0.038
0.923PhePhe: 0.923 ± 0.031
2.991PheGly: 2.991 ± 0.048
0.577PheHis: 0.577 ± 0.022
0.994PheIle: 0.994 ± 0.028
0.366PheLys: 0.366 ± 0.017
2.488PheLeu: 2.488 ± 0.052
0.436PheMet: 0.436 ± 0.018
0.538PheAsn: 0.538 ± 0.02
1.345PhePro: 1.345 ± 0.04
0.579PheGln: 0.579 ± 0.02
1.644PheArg: 1.644 ± 0.036
1.464PheSer: 1.464 ± 0.032
1.885PheThr: 1.885 ± 0.039
2.685PheVal: 2.685 ± 0.052
0.422PheTrp: 0.422 ± 0.022
0.553PheTyr: 0.553 ± 0.021
0.0PheXaa: 0.0 ± 0.0
Gly
10.431GlyAla: 10.431 ± 0.111
0.738GlyCys: 0.738 ± 0.025
5.266GlyAsp: 5.266 ± 0.075
5.319GlyGlu: 5.319 ± 0.072
2.819GlyPhe: 2.819 ± 0.056
8.066GlyGly: 8.066 ± 0.108
2.182GlyHis: 2.182 ± 0.047
3.864GlyIle: 3.864 ± 0.056
1.699GlyLys: 1.699 ± 0.043
9.358GlyLeu: 9.358 ± 0.094
2.101GlyMet: 2.101 ± 0.042
1.57GlyAsn: 1.57 ± 0.04
4.731GlyPro: 4.731 ± 0.07
2.544GlyGln: 2.544 ± 0.046
7.497GlyArg: 7.497 ± 0.083
5.748GlySer: 5.748 ± 0.069
5.602GlyThr: 5.602 ± 0.07
7.929GlyVal: 7.929 ± 0.084
1.78GlyTrp: 1.78 ± 0.047
2.167GlyTyr: 2.167 ± 0.038
0.0GlyXaa: 0.0 ± 0.0
His
2.547HisAla: 2.547 ± 0.044
0.185HisCys: 0.185 ± 0.013
1.568HisAsp: 1.568 ± 0.039
1.362HisGlu: 1.362 ± 0.033
0.555HisPhe: 0.555 ± 0.019
2.211HisGly: 2.211 ± 0.039
0.679HisHis: 0.679 ± 0.025
0.715HisIle: 0.715 ± 0.021
0.286HisLys: 0.286 ± 0.016
2.458HisLeu: 2.458 ± 0.047
0.328HisMet: 0.328 ± 0.014
0.359HisAsn: 0.359 ± 0.017
1.691HisPro: 1.691 ± 0.041
0.566HisGln: 0.566 ± 0.025
1.987HisArg: 1.987 ± 0.046
1.041HisSer: 1.041 ± 0.027
1.311HisThr: 1.311 ± 0.034
1.985HisVal: 1.985 ± 0.041
0.338HisTrp: 0.338 ± 0.015
0.403HisTyr: 0.403 ± 0.016
0.0HisXaa: 0.0 ± 0.0
Ile
5.694IleAla: 5.694 ± 0.078
0.302IleCys: 0.302 ± 0.014
2.911IleAsp: 2.911 ± 0.046
2.576IleGlu: 2.576 ± 0.046
0.948IlePhe: 0.948 ± 0.029
3.925IleGly: 3.925 ± 0.055
0.737IleHis: 0.737 ± 0.03
1.329IleIle: 1.329 ± 0.04
0.586IleLys: 0.586 ± 0.022
3.296IleLeu: 3.296 ± 0.055
0.561IleMet: 0.561 ± 0.022
0.696IleAsn: 0.696 ± 0.024
2.135IlePro: 2.135 ± 0.042
0.848IleGln: 0.848 ± 0.025
2.686IleArg: 2.686 ± 0.044
1.973IleSer: 1.973 ± 0.042
2.441IleThr: 2.441 ± 0.042
3.763IleVal: 3.763 ± 0.061
0.467IleTrp: 0.467 ± 0.021
0.633IleTyr: 0.633 ± 0.022
0.0IleXaa: 0.0 ± 0.0
Lys
2.085LysAla: 2.085 ± 0.05
0.078LysCys: 0.078 ± 0.009
1.023LysAsp: 1.023 ± 0.031
0.881LysGlu: 0.881 ± 0.03
0.358LysPhe: 0.358 ± 0.016
1.372LysGly: 1.372 ± 0.033
0.346LysHis: 0.346 ± 0.018
0.635LysIle: 0.635 ± 0.025
0.568LysLys: 0.568 ± 0.026
1.205LysLeu: 1.205 ± 0.035
0.271LysMet: 0.271 ± 0.016
0.357LysAsn: 0.357 ± 0.019
0.902LysPro: 0.902 ± 0.029
0.458LysGln: 0.458 ± 0.02
1.181LysArg: 1.181 ± 0.036
0.939LysSer: 0.939 ± 0.033
1.038LysThr: 1.038 ± 0.029
1.53LysVal: 1.53 ± 0.038
0.187LysTrp: 0.187 ± 0.011
0.335LysTyr: 0.335 ± 0.016
0.0LysXaa: 0.0 ± 0.0
Leu
14.616LeuAla: 14.616 ± 0.13
0.598LeuCys: 0.598 ± 0.022
6.923LeuAsp: 6.923 ± 0.086
5.531LeuGlu: 5.531 ± 0.062
2.464LeuPhe: 2.464 ± 0.049
9.461LeuGly: 9.461 ± 0.089
2.122LeuHis: 2.122 ± 0.041
3.705LeuIle: 3.705 ± 0.057
1.472LeuLys: 1.472 ± 0.045
10.198LeuLeu: 10.198 ± 0.121
1.663LeuMet: 1.663 ± 0.042
1.492LeuAsn: 1.492 ± 0.036
5.604LeuPro: 5.604 ± 0.075
2.305LeuGln: 2.305 ± 0.041
7.956LeuArg: 7.956 ± 0.086
5.479LeuSer: 5.479 ± 0.062
6.734LeuThr: 6.734 ± 0.078
9.972LeuVal: 9.972 ± 0.103
1.247LeuTrp: 1.247 ± 0.03
1.491LeuTyr: 1.491 ± 0.031
0.0LeuXaa: 0.0 ± 0.0
Met
2.438MetAla: 2.438 ± 0.045
0.138MetCys: 0.138 ± 0.009
0.923MetAsp: 0.923 ± 0.028
0.815MetGlu: 0.815 ± 0.026
0.506MetPhe: 0.506 ± 0.021
1.524MetGly: 1.524 ± 0.04
0.403MetHis: 0.403 ± 0.019
0.759MetIle: 0.759 ± 0.023
0.342MetLys: 0.342 ± 0.015
1.872MetLeu: 1.872 ± 0.037
0.344MetMet: 0.344 ± 0.016
0.39MetAsn: 0.39 ± 0.016
1.192MetPro: 1.192 ± 0.035
0.484MetGln: 0.484 ± 0.017
1.57MetArg: 1.57 ± 0.039
1.594MetSer: 1.594 ± 0.029
1.732MetThr: 1.732 ± 0.036
1.486MetVal: 1.486 ± 0.039
0.243MetTrp: 0.243 ± 0.014
0.28MetTyr: 0.28 ± 0.016
0.0MetXaa: 0.0 ± 0.0
Asn
2.083AsnAla: 2.083 ± 0.041
0.142AsnCys: 0.142 ± 0.011
0.98AsnAsp: 0.98 ± 0.031
0.842AsnGlu: 0.842 ± 0.027
0.442AsnPhe: 0.442 ± 0.019
1.555AsnGly: 1.555 ± 0.04
0.381AsnHis: 0.381 ± 0.016
0.688AsnIle: 0.688 ± 0.024
0.283AsnLys: 0.283 ± 0.016
1.688AsnLeu: 1.688 ± 0.038
0.252AsnMet: 0.252 ± 0.014
0.362AsnAsn: 0.362 ± 0.021
1.437AsnPro: 1.437 ± 0.031
0.47AsnGln: 0.47 ± 0.02
1.21AsnArg: 1.21 ± 0.033
0.813AsnSer: 0.813 ± 0.025
1.005AsnThr: 1.005 ± 0.033
1.44AsnVal: 1.44 ± 0.035
0.237AsnTrp: 0.237 ± 0.012
0.365AsnTyr: 0.365 ± 0.017
0.0AsnXaa: 0.0 ± 0.0
Pro
7.026ProAla: 7.026 ± 0.077
0.302ProCys: 0.302 ± 0.015
4.45ProAsp: 4.45 ± 0.074
4.066ProGlu: 4.066 ± 0.057
1.515ProPhe: 1.515 ± 0.029
5.788ProGly: 5.788 ± 0.066
1.325ProHis: 1.325 ± 0.033
1.879ProIle: 1.879 ± 0.039
0.868ProLys: 0.868 ± 0.027
4.864ProLeu: 4.864 ± 0.074
1.128ProMet: 1.128 ± 0.03
0.945ProAsn: 0.945 ± 0.032
3.425ProPro: 3.425 ± 0.081
1.588ProGln: 1.588 ± 0.037
3.853ProArg: 3.853 ± 0.059
3.249ProSer: 3.249 ± 0.056
3.93ProThr: 3.93 ± 0.054
5.331ProVal: 5.331 ± 0.074
0.956ProTrp: 0.956 ± 0.031
1.079ProTyr: 1.079 ± 0.03
0.0ProXaa: 0.0 ± 0.0
Gln
3.411GlnAla: 3.411 ± 0.057
0.177GlnCys: 0.177 ± 0.012
1.34GlnAsp: 1.34 ± 0.033
1.377GlnGlu: 1.377 ± 0.031
0.691GlnPhe: 0.691 ± 0.026
2.078GlnGly: 2.078 ± 0.044
0.59GlnHis: 0.59 ± 0.02
1.165GlnIle: 1.165 ± 0.029
0.394GlnLys: 0.394 ± 0.019
2.643GlnLeu: 2.643 ± 0.048
0.489GlnMet: 0.489 ± 0.022
0.479GlnAsn: 0.479 ± 0.02
1.597GlnPro: 1.597 ± 0.038
0.953GlnGln: 0.953 ± 0.03
2.487GlnArg: 2.487 ± 0.052
1.361GlnSer: 1.361 ± 0.035
1.421GlnThr: 1.421 ± 0.035
2.673GlnVal: 2.673 ± 0.041
0.464GlnTrp: 0.464 ± 0.018
0.489GlnTyr: 0.489 ± 0.022
0.0GlnXaa: 0.0 ± 0.0
Arg
9.277ArgAla: 9.277 ± 0.103
0.571ArgCys: 0.571 ± 0.024
4.751ArgAsp: 4.751 ± 0.06
4.831ArgGlu: 4.831 ± 0.069
2.352ArgPhe: 2.352 ± 0.045
5.908ArgGly: 5.908 ± 0.068
2.083ArgHis: 2.083 ± 0.045
3.543ArgIle: 3.543 ± 0.054
1.162ArgLys: 1.162 ± 0.035
8.514ArgLeu: 8.514 ± 0.103
1.868ArgMet: 1.868 ± 0.043
1.221ArgAsn: 1.221 ± 0.035
4.552ArgPro: 4.552 ± 0.061
2.142ArgGln: 2.142 ± 0.038
7.754ArgArg: 7.754 ± 0.094
4.719ArgSer: 4.719 ± 0.063
4.868ArgThr: 4.868 ± 0.068
6.574ArgVal: 6.574 ± 0.067
1.472ArgTrp: 1.472 ± 0.037
1.677ArgTyr: 1.677 ± 0.033
0.0ArgXaa: 0.0 ± 0.0
Ser
6.891SerAla: 6.891 ± 0.075
0.367SerCys: 0.367 ± 0.019
3.222SerAsp: 3.222 ± 0.047
2.949SerGlu: 2.949 ± 0.055
1.606SerPhe: 1.606 ± 0.035
6.011SerGly: 6.011 ± 0.071
1.093SerHis: 1.093 ± 0.03
2.048SerIle: 2.048 ± 0.042
0.774SerLys: 0.774 ± 0.026
5.193SerLeu: 5.193 ± 0.051
1.302SerMet: 1.302 ± 0.031
0.893SerAsn: 0.893 ± 0.025
3.227SerPro: 3.227 ± 0.05
1.259SerGln: 1.259 ± 0.033
4.259SerArg: 4.259 ± 0.065
3.301SerSer: 3.301 ± 0.062
3.659SerThr: 3.659 ± 0.06
4.743SerVal: 4.743 ± 0.058
0.88SerTrp: 0.88 ± 0.025
1.03SerTyr: 1.03 ± 0.027
0.0SerXaa: 0.0 ± 0.0
Thr
7.903ThrAla: 7.903 ± 0.09
0.458ThrCys: 0.458 ± 0.018
3.827ThrAsp: 3.827 ± 0.062
3.358ThrGlu: 3.358 ± 0.058
1.815ThrPhe: 1.815 ± 0.039
6.127ThrGly: 6.127 ± 0.072
1.301ThrHis: 1.301 ± 0.033
2.413ThrIle: 2.413 ± 0.046
0.948ThrLys: 0.948 ± 0.03
5.803ThrLeu: 5.803 ± 0.075
1.228ThrMet: 1.228 ± 0.032
1.063ThrAsn: 1.063 ± 0.028
3.977ThrPro: 3.977 ± 0.056
1.447ThrGln: 1.447 ± 0.031
4.314ThrArg: 4.314 ± 0.058
3.533ThrSer: 3.533 ± 0.055
4.375ThrThr: 4.375 ± 0.073
6.058ThrVal: 6.058 ± 0.075
1.023ThrTrp: 1.023 ± 0.034
1.277ThrTyr: 1.277 ± 0.033
0.0ThrXaa: 0.0 ± 0.0
Val
11.968ValAla: 11.968 ± 0.112
0.707ValCys: 0.707 ± 0.026
6.165ValAsp: 6.165 ± 0.073
5.72ValGlu: 5.72 ± 0.075
2.375ValPhe: 2.375 ± 0.048
7.863ValGly: 7.863 ± 0.079
1.951ValHis: 1.951 ± 0.04
3.8ValIle: 3.8 ± 0.051
1.373ValLys: 1.373 ± 0.034
9.88ValLeu: 9.88 ± 0.1
1.655ValMet: 1.655 ± 0.041
1.6ValAsn: 1.6 ± 0.035
5.149ValPro: 5.149 ± 0.061
2.052ValGln: 2.052 ± 0.042
7.025ValArg: 7.025 ± 0.08
4.909ValSer: 4.909 ± 0.061
6.1ValThr: 6.1 ± 0.068
9.946ValVal: 9.946 ± 0.099
1.18ValTrp: 1.18 ± 0.034
1.468ValTyr: 1.468 ± 0.036
0.0ValXaa: 0.0 ± 0.0
Trp
1.693TrpAla: 1.693 ± 0.039
0.15TrpCys: 0.15 ± 0.012
0.858TrpAsp: 0.858 ± 0.025
0.709TrpGlu: 0.709 ± 0.024
0.531TrpPhe: 0.531 ± 0.022
1.068TrpGly: 1.068 ± 0.029
0.368TrpHis: 0.368 ± 0.018
0.607TrpIle: 0.607 ± 0.024
0.227TrpLys: 0.227 ± 0.013
1.83TrpLeu: 1.83 ± 0.045
0.326TrpMet: 0.326 ± 0.015
0.334TrpAsn: 0.334 ± 0.018
0.81TrpPro: 0.81 ± 0.026
0.497TrpGln: 0.497 ± 0.019
1.322TrpArg: 1.322 ± 0.033
0.997TrpSer: 0.997 ± 0.029
0.995TrpThr: 0.995 ± 0.027
1.373TrpVal: 1.373 ± 0.036
0.387TrpTrp: 0.387 ± 0.018
0.302TrpTyr: 0.302 ± 0.018
0.001TrpXaa: 0.001 ± 0.001
Tyr
2.687TyrAla: 2.687 ± 0.052
0.153TyrCys: 0.153 ± 0.01
1.365TyrAsp: 1.365 ± 0.031
1.115TyrGlu: 1.115 ± 0.028
0.577TyrPhe: 0.577 ± 0.022
1.799TyrGly: 1.799 ± 0.041
0.388TyrHis: 0.388 ± 0.017
0.547TyrIle: 0.547 ± 0.023
0.268TyrLys: 0.268 ± 0.016
2.057TyrLeu: 2.057 ± 0.038
0.231TyrMet: 0.231 ± 0.014
0.355TyrAsn: 0.355 ± 0.018
1.012TyrPro: 1.012 ± 0.029
0.511TyrGln: 0.511 ± 0.021
1.611TyrArg: 1.611 ± 0.037
0.935TyrSer: 0.935 ± 0.027
0.991TyrThr: 0.991 ± 0.028
1.72TyrVal: 1.72 ± 0.041
0.299TyrTrp: 0.299 ± 0.015
0.412TyrTyr: 0.412 ± 0.02
0.0TyrXaa: 0.0 ± 0.0
Xaa
0.0XaaAla: 0.0 ± 0.0
0.0XaaCys: 0.0 ± 0.0
0.001XaaAsp: 0.001 ± 0.001
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 3963 proteins (1326481 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