Amino acid dipepetide frequency for Nocardioides sp. BN130099

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
18.506AlaAla: 18.506 ± 0.181
0.979AlaCys: 0.979 ± 0.028
8.778AlaAsp: 8.778 ± 0.085
7.668AlaGlu: 7.668 ± 0.105
3.538AlaPhe: 3.538 ± 0.049
11.797AlaGly: 11.797 ± 0.106
2.455AlaHis: 2.455 ± 0.044
4.984AlaIle: 4.984 ± 0.07
2.825AlaLys: 2.825 ± 0.054
12.645AlaLeu: 12.645 ± 0.138
2.575AlaMet: 2.575 ± 0.05
2.262AlaAsn: 2.262 ± 0.044
6.364AlaPro: 6.364 ± 0.085
3.444AlaGln: 3.444 ± 0.053
8.351AlaArg: 8.351 ± 0.109
6.348AlaSer: 6.348 ± 0.066
7.967AlaThr: 7.967 ± 0.099
10.958AlaVal: 10.958 ± 0.113
1.813AlaTrp: 1.813 ± 0.035
2.527AlaTyr: 2.527 ± 0.039
0.0AlaXaa: 0.0 ± 0.0
Cys
0.948CysAla: 0.948 ± 0.025
0.088CysCys: 0.088 ± 0.009
0.534CysAsp: 0.534 ± 0.019
0.405CysGlu: 0.405 ± 0.017
0.247CysPhe: 0.247 ± 0.014
0.929CysGly: 0.929 ± 0.029
0.178CysHis: 0.178 ± 0.011
0.244CysIle: 0.244 ± 0.013
0.148CysLys: 0.148 ± 0.01
0.644CysLeu: 0.644 ± 0.021
0.128CysMet: 0.128 ± 0.01
0.193CysAsn: 0.193 ± 0.013
0.458CysPro: 0.458 ± 0.021
0.2CysGln: 0.2 ± 0.012
0.54CysArg: 0.54 ± 0.024
0.537CysSer: 0.537 ± 0.019
0.523CysThr: 0.523 ± 0.021
0.624CysVal: 0.624 ± 0.02
0.152CysTrp: 0.152 ± 0.02
0.178CysTyr: 0.178 ± 0.011
0.0CysXaa: 0.0 ± 0.0
Asp
8.114AspAla: 8.114 ± 0.088
0.464AspCys: 0.464 ± 0.019
5.408AspAsp: 5.408 ± 0.093
4.388AspGlu: 4.388 ± 0.063
1.92AspPhe: 1.92 ± 0.042
7.019AspGly: 7.019 ± 0.098
1.62AspHis: 1.62 ± 0.034
2.348AspIle: 2.348 ± 0.041
1.451AspLys: 1.451 ± 0.034
7.554AspLeu: 7.554 ± 0.091
0.843AspMet: 0.843 ± 0.025
1.425AspAsn: 1.425 ± 0.037
4.608AspPro: 4.608 ± 0.06
1.968AspGln: 1.968 ± 0.033
4.805AspArg: 4.805 ± 0.058
2.7AspSer: 2.7 ± 0.045
3.346AspThr: 3.346 ± 0.063
6.187AspVal: 6.187 ± 0.077
1.041AspTrp: 1.041 ± 0.029
1.596AspTyr: 1.596 ± 0.037
0.0AspXaa: 0.0 ± 0.0
Glu
6.937GluAla: 6.937 ± 0.09
0.377GluCys: 0.377 ± 0.018
3.01GluAsp: 3.01 ± 0.052
3.291GluGlu: 3.291 ± 0.068
1.527GluPhe: 1.527 ± 0.031
4.395GluGly: 4.395 ± 0.06
1.512GluHis: 1.512 ± 0.033
2.825GluIle: 2.825 ± 0.046
1.453GluLys: 1.453 ± 0.041
6.419GluLeu: 6.419 ± 0.081
1.012GluMet: 1.012 ± 0.028
0.836GluAsn: 0.836 ± 0.026
2.976GluPro: 2.976 ± 0.052
2.223GluGln: 2.223 ± 0.045
4.661GluArg: 4.661 ± 0.064
2.625GluSer: 2.625 ± 0.04
2.866GluThr: 2.866 ± 0.049
5.343GluVal: 5.343 ± 0.069
0.833GluTrp: 0.833 ± 0.028
0.943GluTyr: 0.943 ± 0.029
0.0GluXaa: 0.0 ± 0.0
Phe
3.761PheAla: 3.761 ± 0.052
0.266PheCys: 0.266 ± 0.015
2.27PheAsp: 2.27 ± 0.04
1.717PheGlu: 1.717 ± 0.034
0.994PhePhe: 0.994 ± 0.031
3.175PheGly: 3.175 ± 0.05
0.621PheHis: 0.621 ± 0.02
0.901PheIle: 0.901 ± 0.026
0.593PheLys: 0.593 ± 0.02
2.599PheLeu: 2.599 ± 0.042
0.445PheMet: 0.445 ± 0.018
0.743PheAsn: 0.743 ± 0.026
1.381PhePro: 1.381 ± 0.03
0.726PheGln: 0.726 ± 0.026
1.746PheArg: 1.746 ± 0.036
1.599PheSer: 1.599 ± 0.034
2.048PheThr: 2.048 ± 0.049
2.621PheVal: 2.621 ± 0.041
0.42PheTrp: 0.42 ± 0.02
0.683PheTyr: 0.683 ± 0.024
0.0PheXaa: 0.0 ± 0.0
Gly
10.431GlyAla: 10.431 ± 0.115
0.863GlyCys: 0.863 ± 0.028
6.433GlyAsp: 6.433 ± 0.101
4.961GlyGlu: 4.961 ± 0.057
3.046GlyPhe: 3.046 ± 0.043
8.944GlyGly: 8.944 ± 0.152
2.026GlyHis: 2.026 ± 0.038
3.991GlyIle: 3.991 ± 0.062
2.464GlyLys: 2.464 ± 0.046
8.699GlyLeu: 8.699 ± 0.089
1.882GlyMet: 1.882 ± 0.038
2.326GlyAsn: 2.326 ± 0.06
4.511GlyPro: 4.511 ± 0.066
2.655GlyGln: 2.655 ± 0.048
6.427GlyArg: 6.427 ± 0.078
5.765GlySer: 5.765 ± 0.076
6.272GlyThr: 6.272 ± 0.101
7.724GlyVal: 7.724 ± 0.08
1.629GlyTrp: 1.629 ± 0.037
2.246GlyTyr: 2.246 ± 0.043
0.001GlyXaa: 0.001 ± 0.001
His
2.442HisAla: 2.442 ± 0.044
0.223HisCys: 0.223 ± 0.012
1.44HisAsp: 1.44 ± 0.033
1.164HisGlu: 1.164 ± 0.027
0.67HisPhe: 0.67 ± 0.023
2.083HisGly: 2.083 ± 0.041
0.687HisHis: 0.687 ± 0.021
0.59HisIle: 0.59 ± 0.018
0.343HisLys: 0.343 ± 0.015
2.281HisLeu: 2.281 ± 0.041
0.286HisMet: 0.286 ± 0.016
0.419HisAsn: 0.419 ± 0.016
1.561HisPro: 1.561 ± 0.034
0.661HisGln: 0.661 ± 0.022
1.705HisArg: 1.705 ± 0.033
0.875HisSer: 0.875 ± 0.024
1.075HisThr: 1.075 ± 0.027
1.803HisVal: 1.803 ± 0.036
0.336HisTrp: 0.336 ± 0.017
0.515HisTyr: 0.515 ± 0.019
0.0HisXaa: 0.0 ± 0.0
Ile
5.592IleAla: 5.592 ± 0.064
0.339IleCys: 0.339 ± 0.015
3.325IleAsp: 3.325 ± 0.051
2.684IleGlu: 2.684 ± 0.051
0.984IlePhe: 0.984 ± 0.028
4.267IleGly: 4.267 ± 0.049
0.748IleHis: 0.748 ± 0.022
1.232IleIle: 1.232 ± 0.032
1.054IleLys: 1.054 ± 0.028
2.765IleLeu: 2.765 ± 0.044
0.503IleMet: 0.503 ± 0.02
1.071IleAsn: 1.071 ± 0.031
2.014IlePro: 2.014 ± 0.041
0.921IleGln: 0.921 ± 0.026
2.411IleArg: 2.411 ± 0.043
2.14IleSer: 2.14 ± 0.037
2.777IleThr: 2.777 ± 0.055
3.564IleVal: 3.564 ± 0.055
0.473IleTrp: 0.473 ± 0.02
0.786IleTyr: 0.786 ± 0.027
0.0IleXaa: 0.0 ± 0.0
Lys
2.872LysAla: 2.872 ± 0.052
0.158LysCys: 0.158 ± 0.013
1.427LysAsp: 1.427 ± 0.038
1.206LysGlu: 1.206 ± 0.036
0.578LysPhe: 0.578 ± 0.023
1.849LysGly: 1.849 ± 0.038
0.464LysHis: 0.464 ± 0.018
1.097LysIle: 1.097 ± 0.027
0.961LysLys: 0.961 ± 0.036
2.068LysLeu: 2.068 ± 0.04
0.472LysMet: 0.472 ± 0.017
0.555LysAsn: 0.555 ± 0.022
1.319LysPro: 1.319 ± 0.034
0.751LysGln: 0.751 ± 0.023
1.625LysArg: 1.625 ± 0.038
1.249LysSer: 1.249 ± 0.033
1.351LysThr: 1.351 ± 0.038
2.309LysVal: 2.309 ± 0.047
0.259LysTrp: 0.259 ± 0.014
0.571LysTyr: 0.571 ± 0.021
0.0LysXaa: 0.0 ± 0.0
Leu
13.91LeuAla: 13.91 ± 0.133
0.724LeuCys: 0.724 ± 0.021
6.947LeuAsp: 6.947 ± 0.087
5.177LeuGlu: 5.177 ± 0.074
2.484LeuPhe: 2.484 ± 0.05
9.043LeuGly: 9.043 ± 0.094
1.995LeuHis: 1.995 ± 0.038
3.438LeuIle: 3.438 ± 0.051
2.028LeuLys: 2.028 ± 0.043
9.739LeuLeu: 9.739 ± 0.122
1.669LeuMet: 1.669 ± 0.038
1.784LeuAsn: 1.784 ± 0.036
5.472LeuPro: 5.472 ± 0.061
2.457LeuGln: 2.457 ± 0.043
6.989LeuArg: 6.989 ± 0.088
5.145LeuSer: 5.145 ± 0.063
6.394LeuThr: 6.394 ± 0.085
9.467LeuVal: 9.467 ± 0.083
1.192LeuTrp: 1.192 ± 0.032
1.621LeuTyr: 1.621 ± 0.035
0.0LeuXaa: 0.0 ± 0.0
Met
2.223MetAla: 2.223 ± 0.046
0.135MetCys: 0.135 ± 0.01
0.901MetAsp: 0.901 ± 0.024
0.742MetGlu: 0.742 ± 0.023
0.473MetPhe: 0.473 ± 0.02
1.373MetGly: 1.373 ± 0.035
0.355MetHis: 0.355 ± 0.017
0.71MetIle: 0.71 ± 0.026
0.538MetLys: 0.538 ± 0.023
1.771MetLeu: 1.771 ± 0.037
0.328MetMet: 0.328 ± 0.016
0.449MetAsn: 0.449 ± 0.016
1.118MetPro: 1.118 ± 0.027
0.464MetGln: 0.464 ± 0.019
1.37MetArg: 1.37 ± 0.031
1.477MetSer: 1.477 ± 0.031
1.654MetThr: 1.654 ± 0.031
1.5MetVal: 1.5 ± 0.036
0.222MetTrp: 0.222 ± 0.013
0.293MetTyr: 0.293 ± 0.014
0.0MetXaa: 0.0 ± 0.0
Asn
2.382AsnAla: 2.382 ± 0.047
0.211AsnCys: 0.211 ± 0.014
1.609AsnAsp: 1.609 ± 0.051
0.998AsnGlu: 0.998 ± 0.025
0.62AsnPhe: 0.62 ± 0.023
2.292AsnGly: 2.292 ± 0.055
0.442AsnHis: 0.442 ± 0.018
0.811AsnIle: 0.811 ± 0.026
0.506AsnLys: 0.506 ± 0.02
1.937AsnLeu: 1.937 ± 0.036
0.316AsnMet: 0.316 ± 0.014
0.607AsnAsn: 0.607 ± 0.024
1.514AsnPro: 1.514 ± 0.038
0.633AsnGln: 0.633 ± 0.023
1.276AsnArg: 1.276 ± 0.03
0.965AsnSer: 0.965 ± 0.03
1.228AsnThr: 1.228 ± 0.034
1.73AsnVal: 1.73 ± 0.039
0.292AsnTrp: 0.292 ± 0.015
0.519AsnTyr: 0.519 ± 0.023
0.0AsnXaa: 0.0 ± 0.0
Pro
7.069ProAla: 7.069 ± 0.095
0.312ProCys: 0.312 ± 0.014
4.507ProAsp: 4.507 ± 0.064
3.686ProGlu: 3.686 ± 0.054
1.553ProPhe: 1.553 ± 0.036
5.53ProGly: 5.53 ± 0.067
1.096ProHis: 1.096 ± 0.028
1.94ProIle: 1.94 ± 0.035
1.218ProLys: 1.218 ± 0.033
4.627ProLeu: 4.627 ± 0.059
1.068ProMet: 1.068 ± 0.025
0.979ProAsn: 0.979 ± 0.031
3.095ProPro: 3.095 ± 0.079
1.415ProGln: 1.415 ± 0.03
3.207ProArg: 3.207 ± 0.05
3.218ProSer: 3.218 ± 0.056
3.756ProThr: 3.756 ± 0.058
4.888ProVal: 4.888 ± 0.063
0.857ProTrp: 0.857 ± 0.026
1.199ProTyr: 1.199 ± 0.034
0.0ProXaa: 0.0 ± 0.0
Gln
3.431GlnAla: 3.431 ± 0.053
0.187GlnCys: 0.187 ± 0.012
1.288GlnAsp: 1.288 ± 0.033
1.344GlnGlu: 1.344 ± 0.031
0.791GlnPhe: 0.791 ± 0.022
2.077GlnGly: 2.077 ± 0.036
0.671GlnHis: 0.671 ± 0.022
1.305GlnIle: 1.305 ± 0.031
0.618GlnLys: 0.618 ± 0.022
3.108GlnLeu: 3.108 ± 0.046
0.544GlnMet: 0.544 ± 0.018
0.496GlnAsn: 0.496 ± 0.018
1.715GlnPro: 1.715 ± 0.037
1.169GlnGln: 1.169 ± 0.031
2.338GlnArg: 2.338 ± 0.045
1.296GlnSer: 1.296 ± 0.028
1.508GlnThr: 1.508 ± 0.03
2.915GlnVal: 2.915 ± 0.053
0.422GlnTrp: 0.422 ± 0.016
0.617GlnTyr: 0.617 ± 0.018
0.0GlnXaa: 0.0 ± 0.0
Arg
8.069ArgAla: 8.069 ± 0.09
0.498ArgCys: 0.498 ± 0.02
4.305ArgAsp: 4.305 ± 0.052
3.947ArgGlu: 3.947 ± 0.053
2.279ArgPhe: 2.279 ± 0.043
5.281ArgGly: 5.281 ± 0.067
1.644ArgHis: 1.644 ± 0.035
3.284ArgIle: 3.284 ± 0.043
1.649ArgLys: 1.649 ± 0.041
7.369ArgLeu: 7.369 ± 0.094
1.655ArgMet: 1.655 ± 0.034
1.41ArgAsn: 1.41 ± 0.04
3.725ArgPro: 3.725 ± 0.052
2.032ArgGln: 2.032 ± 0.041
6.438ArgArg: 6.438 ± 0.1
3.938ArgSer: 3.938 ± 0.05
4.21ArgThr: 4.21 ± 0.057
5.601ArgVal: 5.601 ± 0.063
1.254ArgTrp: 1.254 ± 0.029
1.614ArgTyr: 1.614 ± 0.035
0.0ArgXaa: 0.0 ± 0.0
Ser
6.356SerAla: 6.356 ± 0.085
0.455SerCys: 0.455 ± 0.02
3.528SerAsp: 3.528 ± 0.052
2.533SerGlu: 2.533 ± 0.044
1.806SerPhe: 1.806 ± 0.038
5.943SerGly: 5.943 ± 0.079
0.998SerHis: 0.998 ± 0.029
2.208SerIle: 2.208 ± 0.039
1.139SerLys: 1.139 ± 0.028
4.865SerLeu: 4.865 ± 0.058
1.245SerMet: 1.245 ± 0.029
1.194SerAsn: 1.194 ± 0.032
3.009SerPro: 3.009 ± 0.054
1.338SerGln: 1.338 ± 0.029
3.517SerArg: 3.517 ± 0.056
3.322SerSer: 3.322 ± 0.055
3.579SerThr: 3.579 ± 0.055
4.486SerVal: 4.486 ± 0.056
0.939SerTrp: 0.939 ± 0.024
1.509SerTyr: 1.509 ± 0.032
0.0SerXaa: 0.0 ± 0.0
Thr
7.719ThrAla: 7.719 ± 0.085
0.558ThrCys: 0.558 ± 0.024
3.998ThrAsp: 3.998 ± 0.057
3.113ThrGlu: 3.113 ± 0.049
2.101ThrPhe: 2.101 ± 0.044
6.372ThrGly: 6.372 ± 0.093
1.17ThrHis: 1.17 ± 0.029
2.79ThrIle: 2.79 ± 0.054
1.402ThrLys: 1.402 ± 0.035
5.665ThrLeu: 5.665 ± 0.065
1.108ThrMet: 1.108 ± 0.027
1.387ThrAsn: 1.387 ± 0.038
3.874ThrPro: 3.874 ± 0.052
1.497ThrGln: 1.497 ± 0.031
3.658ThrArg: 3.658 ± 0.058
3.815ThrSer: 3.815 ± 0.062
4.368ThrThr: 4.368 ± 0.075
5.901ThrVal: 5.901 ± 0.087
1.028ThrTrp: 1.028 ± 0.026
1.69ThrTyr: 1.69 ± 0.042
0.0ThrXaa: 0.0 ± 0.0
Val
11.888ValAla: 11.888 ± 0.108
0.693ValCys: 0.693 ± 0.022
6.347ValAsp: 6.347 ± 0.075
5.22ValGlu: 5.22 ± 0.064
2.401ValPhe: 2.401 ± 0.044
7.602ValGly: 7.602 ± 0.079
1.779ValHis: 1.779 ± 0.037
3.79ValIle: 3.79 ± 0.054
1.942ValLys: 1.942 ± 0.043
9.08ValLeu: 9.08 ± 0.095
1.474ValMet: 1.474 ± 0.036
1.924ValAsn: 1.924 ± 0.044
4.774ValPro: 4.774 ± 0.058
2.128ValGln: 2.128 ± 0.04
6.344ValArg: 6.344 ± 0.071
4.756ValSer: 4.756 ± 0.059
6.121ValThr: 6.121 ± 0.091
9.561ValVal: 9.561 ± 0.111
1.09ValTrp: 1.09 ± 0.029
1.495ValTyr: 1.495 ± 0.033
0.001ValXaa: 0.001 ± 0.001
Trp
1.597TrpAla: 1.597 ± 0.034
0.149TrpCys: 0.149 ± 0.011
0.858TrpAsp: 0.858 ± 0.024
0.689TrpGlu: 0.689 ± 0.022
0.531TrpPhe: 0.531 ± 0.022
1.107TrpGly: 1.107 ± 0.034
0.347TrpHis: 0.347 ± 0.014
0.603TrpIle: 0.603 ± 0.022
0.383TrpLys: 0.383 ± 0.018
1.648TrpLeu: 1.648 ± 0.039
0.315TrpMet: 0.315 ± 0.015
0.347TrpAsn: 0.347 ± 0.017
0.693TrpPro: 0.693 ± 0.023
0.552TrpGln: 0.552 ± 0.02
1.163TrpArg: 1.163 ± 0.028
1.031TrpSer: 1.031 ± 0.028
1.048TrpThr: 1.048 ± 0.03
1.215TrpVal: 1.215 ± 0.032
0.353TrpTrp: 0.353 ± 0.016
0.318TrpTyr: 0.318 ± 0.016
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.538TyrAla: 2.538 ± 0.04
0.222TyrCys: 0.222 ± 0.012
1.892TyrAsp: 1.892 ± 0.037
1.132TyrGlu: 1.132 ± 0.03
0.765TyrPhe: 0.765 ± 0.025
2.22TyrGly: 2.22 ± 0.04
0.349TyrHis: 0.349 ± 0.015
0.559TyrIle: 0.559 ± 0.021
0.427TyrLys: 0.427 ± 0.019
2.191TyrLeu: 2.191 ± 0.041
0.228TyrMet: 0.228 ± 0.013
0.48TyrAsn: 0.48 ± 0.021
1.039TyrPro: 1.039 ± 0.029
0.606TyrGln: 0.606 ± 0.023
1.633TyrArg: 1.633 ± 0.034
1.168TyrSer: 1.168 ± 0.035
1.122TyrThr: 1.122 ± 0.035
2.011TyrVal: 2.011 ± 0.039
0.341TyrTrp: 0.341 ± 0.015
0.506TyrTyr: 0.506 ± 0.02
0.0TyrXaa: 0.0 ± 0.0
Xaa
0.001XaaAla: 0.001 ± 0.001
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
0.001XaaXaa: 0.001 ± 0.001
Statistics based on 4452 proteins (1471220 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