Amino acid dipepetide frequency for Commensalibacter sp. ESL0284

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
6.261AlaAla: 6.261 ± 0.138
1.037AlaCys: 1.037 ± 0.045
3.474AlaAsp: 3.474 ± 0.074
4.064AlaGlu: 4.064 ± 0.095
3.036AlaPhe: 3.036 ± 0.078
5.683AlaGly: 5.683 ± 0.125
1.436AlaHis: 1.436 ± 0.045
5.862AlaIle: 5.862 ± 0.108
4.17AlaLys: 4.17 ± 0.089
8.003AlaLeu: 8.003 ± 0.146
1.848AlaMet: 1.848 ± 0.063
3.119AlaAsn: 3.119 ± 0.082
2.492AlaPro: 2.492 ± 0.075
3.013AlaGln: 3.013 ± 0.087
3.754AlaArg: 3.754 ± 0.093
4.567AlaSer: 4.567 ± 0.095
3.561AlaThr: 3.561 ± 0.091
4.778AlaVal: 4.778 ± 0.095
0.905AlaTrp: 0.905 ± 0.044
2.299AlaTyr: 2.299 ± 0.065
0.0AlaXaa: 0.0 ± 0.0
Cys
0.782CysAla: 0.782 ± 0.039
0.23CysCys: 0.23 ± 0.02
0.585CysAsp: 0.585 ± 0.032
0.472CysGlu: 0.472 ± 0.028
0.571CysPhe: 0.571 ± 0.032
0.914CysGly: 0.914 ± 0.046
0.379CysHis: 0.379 ± 0.027
0.902CysIle: 0.902 ± 0.041
0.592CysLys: 0.592 ± 0.029
1.222CysLeu: 1.222 ± 0.05
0.209CysMet: 0.209 ± 0.018
0.526CysAsn: 0.526 ± 0.03
0.527CysPro: 0.527 ± 0.031
0.493CysGln: 0.493 ± 0.033
0.482CysArg: 0.482 ± 0.027
0.79CysSer: 0.79 ± 0.041
0.475CysThr: 0.475 ± 0.03
0.621CysVal: 0.621 ± 0.034
0.169CysTrp: 0.169 ± 0.017
0.399CysTyr: 0.399 ± 0.028
0.0CysXaa: 0.0 ± 0.0
Asp
3.398AspAla: 3.398 ± 0.087
0.547AspCys: 0.547 ± 0.028
2.324AspAsp: 2.324 ± 0.071
2.903AspGlu: 2.903 ± 0.084
2.519AspPhe: 2.519 ± 0.071
3.124AspGly: 3.124 ± 0.094
1.479AspHis: 1.479 ± 0.051
4.557AspIle: 4.557 ± 0.101
3.291AspLys: 3.291 ± 0.076
5.359AspLeu: 5.359 ± 0.096
1.232AspMet: 1.232 ± 0.044
2.64AspAsn: 2.64 ± 0.083
2.522AspPro: 2.522 ± 0.067
2.409AspGln: 2.409 ± 0.073
2.691AspArg: 2.691 ± 0.08
2.609AspSer: 2.609 ± 0.071
2.317AspThr: 2.317 ± 0.062
2.889AspVal: 2.889 ± 0.085
0.703AspTrp: 0.703 ± 0.038
1.887AspTyr: 1.887 ± 0.058
0.0AspXaa: 0.0 ± 0.0
Glu
4.299GluAla: 4.299 ± 0.1
0.479GluCys: 0.479 ± 0.03
2.479GluAsp: 2.479 ± 0.058
3.371GluGlu: 3.371 ± 0.091
2.042GluPhe: 2.042 ± 0.063
3.223GluGly: 3.223 ± 0.084
1.243GluHis: 1.243 ± 0.049
4.83GluIle: 4.83 ± 0.112
4.997GluLys: 4.997 ± 0.109
4.846GluLeu: 4.846 ± 0.108
1.476GluMet: 1.476 ± 0.047
3.678GluAsn: 3.678 ± 0.085
1.615GluPro: 1.615 ± 0.053
2.532GluGln: 2.532 ± 0.081
2.731GluArg: 2.731 ± 0.081
2.545GluSer: 2.545 ± 0.062
3.121GluThr: 3.121 ± 0.081
2.917GluVal: 2.917 ± 0.081
0.822GluTrp: 0.822 ± 0.037
1.577GluTyr: 1.577 ± 0.054
0.0GluXaa: 0.0 ± 0.0
Phe
2.976PheAla: 2.976 ± 0.076
0.696PheCys: 0.696 ± 0.04
2.374PheAsp: 2.374 ± 0.068
2.113PheGlu: 2.113 ± 0.067
2.271PhePhe: 2.271 ± 0.079
2.962PheGly: 2.962 ± 0.087
1.098PheHis: 1.098 ± 0.048
3.753PheIle: 3.753 ± 0.095
2.235PheLys: 2.235 ± 0.064
4.438PheLeu: 4.438 ± 0.116
1.088PheMet: 1.088 ± 0.044
2.17PheAsn: 2.17 ± 0.062
1.895PhePro: 1.895 ± 0.065
1.436PheGln: 1.436 ± 0.044
1.746PheArg: 1.746 ± 0.05
3.445PheSer: 3.445 ± 0.081
2.374PheThr: 2.374 ± 0.067
2.593PheVal: 2.593 ± 0.064
0.578PheTrp: 0.578 ± 0.034
1.647PheTyr: 1.647 ± 0.055
0.0PheXaa: 0.0 ± 0.0
Gly
4.558GlyAla: 4.558 ± 0.103
0.893GlyCys: 0.893 ± 0.045
3.088GlyAsp: 3.088 ± 0.104
3.227GlyGlu: 3.227 ± 0.081
3.173GlyPhe: 3.173 ± 0.084
5.138GlyGly: 5.138 ± 0.122
1.566GlyHis: 1.566 ± 0.051
5.65GlyIle: 5.65 ± 0.111
4.78GlyLys: 4.78 ± 0.09
6.442GlyLeu: 6.442 ± 0.125
1.822GlyMet: 1.822 ± 0.061
3.328GlyAsn: 3.328 ± 0.138
1.988GlyPro: 1.988 ± 0.073
2.679GlyGln: 2.679 ± 0.078
3.295GlyArg: 3.295 ± 0.075
4.136GlySer: 4.136 ± 0.118
3.434GlyThr: 3.434 ± 0.105
4.008GlyVal: 4.008 ± 0.096
1.055GlyTrp: 1.055 ± 0.045
2.503GlyTyr: 2.503 ± 0.074
0.0GlyXaa: 0.0 ± 0.0
His
1.718HisAla: 1.718 ± 0.051
0.305HisCys: 0.305 ± 0.023
1.344HisAsp: 1.344 ± 0.056
1.192HisGlu: 1.192 ± 0.052
1.145HisPhe: 1.145 ± 0.049
1.525HisGly: 1.525 ± 0.049
0.856HisHis: 0.856 ± 0.042
1.835HisIle: 1.835 ± 0.059
1.229HisLys: 1.229 ± 0.048
2.397HisLeu: 2.397 ± 0.06
0.569HisMet: 0.569 ± 0.031
1.218HisAsn: 1.218 ± 0.048
1.361HisPro: 1.361 ± 0.056
1.11HisGln: 1.11 ± 0.046
1.091HisArg: 1.091 ± 0.045
1.462HisSer: 1.462 ± 0.047
0.976HisThr: 0.976 ± 0.043
1.422HisVal: 1.422 ± 0.043
0.366HisTrp: 0.366 ± 0.024
0.971HisTyr: 0.971 ± 0.041
0.0HisXaa: 0.0 ± 0.0
Ile
6.579IleAla: 6.579 ± 0.102
1.109IleCys: 1.109 ± 0.047
4.764IleAsp: 4.764 ± 0.101
4.731IleGlu: 4.731 ± 0.098
3.519IlePhe: 3.519 ± 0.108
5.573IleGly: 5.573 ± 0.109
2.123IleHis: 2.123 ± 0.063
6.525IleIle: 6.525 ± 0.143
4.391IleLys: 4.391 ± 0.093
8.579IleLeu: 8.579 ± 0.138
1.859IleMet: 1.859 ± 0.059
4.231IleAsn: 4.231 ± 0.113
3.951IlePro: 3.951 ± 0.093
3.23IleGln: 3.23 ± 0.087
3.626IleArg: 3.626 ± 0.092
5.458IleSer: 5.458 ± 0.105
4.303IleThr: 4.303 ± 0.092
4.766IleVal: 4.766 ± 0.091
0.924IleTrp: 0.924 ± 0.047
2.362IleTyr: 2.362 ± 0.065
0.0IleXaa: 0.0 ± 0.0
Lys
4.614LysAla: 4.614 ± 0.085
0.357LysCys: 0.357 ± 0.027
3.232LysAsp: 3.232 ± 0.078
4.104LysGlu: 4.104 ± 0.092
1.897LysPhe: 1.897 ± 0.054
3.923LysGly: 3.923 ± 0.09
1.22LysHis: 1.22 ± 0.051
5.874LysIle: 5.874 ± 0.113
5.467LysLys: 5.467 ± 0.141
5.632LysLeu: 5.632 ± 0.109
1.514LysMet: 1.514 ± 0.045
4.713LysAsn: 4.713 ± 0.105
2.433LysPro: 2.433 ± 0.064
2.767LysGln: 2.767 ± 0.083
3.06LysArg: 3.06 ± 0.074
3.481LysSer: 3.481 ± 0.077
3.601LysThr: 3.601 ± 0.082
3.251LysVal: 3.251 ± 0.08
0.686LysTrp: 0.686 ± 0.035
1.666LysTyr: 1.666 ± 0.052
0.0LysXaa: 0.0 ± 0.0
Leu
7.617LeuAla: 7.617 ± 0.117
1.204LeuCys: 1.204 ± 0.051
5.143LeuAsp: 5.143 ± 0.106
5.091LeuGlu: 5.091 ± 0.103
4.477LeuPhe: 4.477 ± 0.097
6.259LeuGly: 6.259 ± 0.117
2.251LeuHis: 2.251 ± 0.058
7.631LeuIle: 7.631 ± 0.135
6.677LeuLys: 6.677 ± 0.131
9.463LeuLeu: 9.463 ± 0.17
2.365LeuMet: 2.365 ± 0.057
5.122LeuAsn: 5.122 ± 0.115
5.023LeuPro: 5.023 ± 0.101
4.108LeuGln: 4.108 ± 0.089
4.853LeuArg: 4.853 ± 0.1
7.613LeuSer: 7.613 ± 0.134
5.705LeuThr: 5.705 ± 0.105
5.383LeuVal: 5.383 ± 0.102
1.152LeuTrp: 1.152 ± 0.052
3.023LeuTyr: 3.023 ± 0.087
0.0LeuXaa: 0.0 ± 0.0
Met
2.181MetAla: 2.181 ± 0.064
0.16MetCys: 0.16 ± 0.018
1.283MetAsp: 1.283 ± 0.044
1.271MetGlu: 1.271 ± 0.047
0.757MetPhe: 0.757 ± 0.036
1.671MetGly: 1.671 ± 0.05
0.512MetHis: 0.512 ± 0.034
1.981MetIle: 1.981 ± 0.063
1.446MetLys: 1.446 ± 0.048
2.13MetLeu: 2.13 ± 0.069
0.707MetMet: 0.707 ± 0.036
1.391MetAsn: 1.391 ± 0.046
1.206MetPro: 1.206 ± 0.049
1.104MetGln: 1.104 ± 0.042
1.152MetArg: 1.152 ± 0.042
1.488MetSer: 1.488 ± 0.054
1.413MetThr: 1.413 ± 0.046
1.607MetVal: 1.607 ± 0.051
0.172MetTrp: 0.172 ± 0.018
0.379MetTyr: 0.379 ± 0.028
0.0MetXaa: 0.0 ± 0.0
Asn
3.526AsnAla: 3.526 ± 0.095
0.547AsnCys: 0.547 ± 0.034
2.66AsnAsp: 2.66 ± 0.079
2.7AsnGlu: 2.7 ± 0.073
2.379AsnPhe: 2.379 ± 0.073
3.441AsnGly: 3.441 ± 0.122
1.492AsnHis: 1.492 ± 0.053
4.576AsnIle: 4.576 ± 0.128
3.371AsnLys: 3.371 ± 0.083
5.263AsnLeu: 5.263 ± 0.1
1.154AsnMet: 1.154 ± 0.044
3.394AsnAsn: 3.394 ± 0.132
2.682AsnPro: 2.682 ± 0.072
2.592AsnGln: 2.592 ± 0.067
2.496AsnArg: 2.496 ± 0.067
3.244AsnSer: 3.244 ± 0.093
2.341AsnThr: 2.341 ± 0.07
2.787AsnVal: 2.787 ± 0.081
0.684AsnTrp: 0.684 ± 0.033
1.847AsnTyr: 1.847 ± 0.064
0.0AsnXaa: 0.0 ± 0.0
Pro
2.813ProAla: 2.813 ± 0.072
0.418ProCys: 0.418 ± 0.027
2.915ProAsp: 2.915 ± 0.075
3.013ProGlu: 3.013 ± 0.077
2.082ProPhe: 2.082 ± 0.065
2.496ProGly: 2.496 ± 0.065
0.966ProHis: 0.966 ± 0.043
3.062ProIle: 3.062 ± 0.075
2.266ProLys: 2.266 ± 0.058
4.374ProLeu: 4.374 ± 0.108
0.87ProMet: 0.87 ± 0.035
2.017ProAsn: 2.017 ± 0.061
1.711ProPro: 1.711 ± 0.079
1.613ProGln: 1.613 ± 0.046
1.6ProArg: 1.6 ± 0.058
2.858ProSer: 2.858 ± 0.07
2.035ProThr: 2.035 ± 0.059
3.526ProVal: 3.526 ± 0.089
0.569ProTrp: 0.569 ± 0.03
1.594ProTyr: 1.594 ± 0.059
0.0ProXaa: 0.0 ± 0.0
Gln
3.495GlnAla: 3.495 ± 0.079
0.338GlnCys: 0.338 ± 0.025
2.101GlnAsp: 2.101 ± 0.065
2.386GlnGlu: 2.386 ± 0.084
1.794GlnPhe: 1.794 ± 0.063
2.494GlnGly: 2.494 ± 0.085
0.926GlnHis: 0.926 ± 0.04
3.389GlnIle: 3.389 ± 0.088
3.302GlnLys: 3.302 ± 0.088
4.008GlnLeu: 4.008 ± 0.091
0.945GlnMet: 0.945 ± 0.039
2.602GlnAsn: 2.602 ± 0.079
1.607GlnPro: 1.607 ± 0.062
2.045GlnGln: 2.045 ± 0.071
2.002GlnArg: 2.002 ± 0.056
2.626GlnSer: 2.626 ± 0.08
2.099GlnThr: 2.099 ± 0.057
2.264GlnVal: 2.264 ± 0.062
0.543GlnTrp: 0.543 ± 0.028
1.366GlnTyr: 1.366 ± 0.053
0.0GlnXaa: 0.0 ± 0.0
Arg
3.077ArgAla: 3.077 ± 0.081
0.43ArgCys: 0.43 ± 0.028
2.273ArgAsp: 2.273 ± 0.069
2.66ArgGlu: 2.66 ± 0.072
2.228ArgPhe: 2.228 ± 0.068
2.653ArgGly: 2.653 ± 0.073
1.168ArgHis: 1.168 ± 0.043
4.005ArgIle: 4.005 ± 0.071
3.133ArgLys: 3.133 ± 0.067
5.26ArgLeu: 5.26 ± 0.098
1.215ArgMet: 1.215 ± 0.053
2.395ArgAsn: 2.395 ± 0.06
1.97ArgPro: 1.97 ± 0.061
2.428ArgGln: 2.428 ± 0.076
2.484ArgArg: 2.484 ± 0.079
2.764ArgSer: 2.764 ± 0.077
2.01ArgThr: 2.01 ± 0.059
2.717ArgVal: 2.717 ± 0.078
0.63ArgTrp: 0.63 ± 0.033
1.77ArgTyr: 1.77 ± 0.049
0.0ArgXaa: 0.0 ± 0.0
Ser
4.184SerAla: 4.184 ± 0.079
0.728SerCys: 0.728 ± 0.039
3.157SerAsp: 3.157 ± 0.077
3.274SerGlu: 3.274 ± 0.085
3.356SerPhe: 3.356 ± 0.088
4.395SerGly: 4.395 ± 0.126
1.532SerHis: 1.532 ± 0.044
5.382SerIle: 5.382 ± 0.106
3.49SerLys: 3.49 ± 0.084
6.9SerLeu: 6.9 ± 0.123
1.439SerMet: 1.439 ± 0.048
2.942SerAsn: 2.942 ± 0.083
2.696SerPro: 2.696 ± 0.075
2.379SerGln: 2.379 ± 0.057
2.931SerArg: 2.931 ± 0.071
4.492SerSer: 4.492 ± 0.109
2.971SerThr: 2.971 ± 0.071
4.066SerVal: 4.066 ± 0.091
0.849SerTrp: 0.849 ± 0.035
2.167SerTyr: 2.167 ± 0.063
0.0SerXaa: 0.0 ± 0.0
Thr
3.885ThrAla: 3.885 ± 0.091
0.531ThrCys: 0.531 ± 0.033
2.675ThrAsp: 2.675 ± 0.074
2.654ThrGlu: 2.654 ± 0.07
1.989ThrPhe: 1.989 ± 0.057
4.219ThrGly: 4.219 ± 0.109
1.213ThrHis: 1.213 ± 0.047
4.209ThrIle: 4.209 ± 0.092
2.437ThrLys: 2.437 ± 0.069
5.618ThrLeu: 5.618 ± 0.119
1.098ThrMet: 1.098 ± 0.044
2.259ThrAsn: 2.259 ± 0.08
2.498ThrPro: 2.498 ± 0.071
1.929ThrGln: 1.929 ± 0.063
2.235ThrArg: 2.235 ± 0.056
3.1ThrSer: 3.1 ± 0.078
2.468ThrThr: 2.468 ± 0.07
3.603ThrVal: 3.603 ± 0.088
0.501ThrTrp: 0.501 ± 0.031
1.572ThrTyr: 1.572 ± 0.061
0.0ThrXaa: 0.0 ± 0.0
Val
4.459ValAla: 4.459 ± 0.104
0.681ValCys: 0.681 ± 0.032
3.161ValAsp: 3.161 ± 0.091
3.418ValGlu: 3.418 ± 0.077
2.538ValPhe: 2.538 ± 0.065
3.953ValGly: 3.953 ± 0.083
1.264ValHis: 1.264 ± 0.055
5.189ValIle: 5.189 ± 0.099
3.732ValLys: 3.732 ± 0.089
5.41ValLeu: 5.41 ± 0.101
1.605ValMet: 1.605 ± 0.05
2.966ValAsn: 2.966 ± 0.084
2.562ValPro: 2.562 ± 0.066
2.21ValGln: 2.21 ± 0.061
2.618ValArg: 2.618 ± 0.074
3.953ValSer: 3.953 ± 0.078
3.528ValThr: 3.528 ± 0.078
3.794ValVal: 3.794 ± 0.088
0.694ValTrp: 0.694 ± 0.035
1.68ValTyr: 1.68 ± 0.059
0.0ValXaa: 0.0 ± 0.0
Trp
0.712TrpAla: 0.712 ± 0.039
0.176TrpCys: 0.176 ± 0.019
0.533TrpAsp: 0.533 ± 0.03
0.548TrpGlu: 0.548 ± 0.035
0.606TrpPhe: 0.606 ± 0.033
0.863TrpGly: 0.863 ± 0.041
0.393TrpHis: 0.393 ± 0.026
1.097TrpIle: 1.097 ± 0.049
0.804TrpLys: 0.804 ± 0.04
1.537TrpLeu: 1.537 ± 0.059
0.298TrpMet: 0.298 ± 0.024
0.696TrpAsn: 0.696 ± 0.043
0.48TrpPro: 0.48 ± 0.024
0.654TrpGln: 0.654 ± 0.037
0.696TrpArg: 0.696 ± 0.038
0.67TrpSer: 0.67 ± 0.036
0.56TrpThr: 0.56 ± 0.033
0.738TrpVal: 0.738 ± 0.037
0.219TrpTrp: 0.219 ± 0.019
0.406TrpTyr: 0.406 ± 0.029
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.23TyrAla: 2.23 ± 0.061
0.475TyrCys: 0.475 ± 0.032
1.836TyrAsp: 1.836 ± 0.056
1.629TyrGlu: 1.629 ± 0.062
1.511TyrPhe: 1.511 ± 0.056
2.252TyrGly: 2.252 ± 0.065
0.975TyrHis: 0.975 ± 0.038
2.299TyrIle: 2.299 ± 0.066
1.685TyrLys: 1.685 ± 0.058
3.279TyrLeu: 3.279 ± 0.079
0.694TyrMet: 0.694 ± 0.039
1.767TyrAsn: 1.767 ± 0.067
1.577TyrPro: 1.577 ± 0.047
1.601TyrGln: 1.601 ± 0.052
1.73TyrArg: 1.73 ± 0.054
2.028TyrSer: 2.028 ± 0.063
1.399TyrThr: 1.399 ± 0.047
1.681TyrVal: 1.681 ± 0.053
0.465TyrTrp: 0.465 ± 0.032
1.248TyrTyr: 1.248 ± 0.052
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 1685 proteins (574535 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