Amino acid dipepetide frequency for Lysobacter sp. Alg18-2.2

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
15.821AlaAla: 15.821 ± 0.189
1.468AlaCys: 1.468 ± 0.046
6.594AlaAsp: 6.594 ± 0.099
7.38AlaGlu: 7.38 ± 0.097
4.034AlaPhe: 4.034 ± 0.072
11.598AlaGly: 11.598 ± 0.135
2.72AlaHis: 2.72 ± 0.064
4.996AlaIle: 4.996 ± 0.086
2.475AlaLys: 2.475 ± 0.08
15.029AlaLeu: 15.029 ± 0.178
3.446AlaMet: 3.446 ± 0.062
2.504AlaAsn: 2.504 ± 0.063
5.985AlaPro: 5.985 ± 0.099
4.657AlaGln: 4.657 ± 0.079
10.491AlaArg: 10.491 ± 0.128
6.735AlaSer: 6.735 ± 0.099
5.698AlaThr: 5.698 ± 0.101
8.744AlaVal: 8.744 ± 0.111
2.234AlaTrp: 2.234 ± 0.064
2.149AlaTyr: 2.149 ± 0.054
0.0AlaXaa: 0.0 ± 0.0
Cys
1.19CysAla: 1.19 ± 0.046
0.159CysCys: 0.159 ± 0.018
0.517CysAsp: 0.517 ± 0.025
0.556CysGlu: 0.556 ± 0.03
0.283CysPhe: 0.283 ± 0.019
0.965CysGly: 0.965 ± 0.039
0.28CysHis: 0.28 ± 0.023
0.361CysIle: 0.361 ± 0.02
0.143CysLys: 0.143 ± 0.013
0.819CysLeu: 0.819 ± 0.031
0.163CysMet: 0.163 ± 0.015
0.215CysAsn: 0.215 ± 0.017
0.54CysPro: 0.54 ± 0.028
0.233CysGln: 0.233 ± 0.018
0.861CysArg: 0.861 ± 0.036
0.577CysSer: 0.577 ± 0.028
0.494CysThr: 0.494 ± 0.023
0.727CysVal: 0.727 ± 0.029
0.173CysTrp: 0.173 ± 0.017
0.166CysTyr: 0.166 ± 0.017
0.0CysXaa: 0.0 ± 0.0
Asp
8.147AspAla: 8.147 ± 0.119
0.483AspCys: 0.483 ± 0.028
3.342AspAsp: 3.342 ± 0.08
3.759AspGlu: 3.759 ± 0.076
2.076AspPhe: 2.076 ± 0.052
5.745AspGly: 5.745 ± 0.102
1.275AspHis: 1.275 ± 0.052
2.414AspIle: 2.414 ± 0.065
1.037AspLys: 1.037 ± 0.043
5.501AspLeu: 5.501 ± 0.075
1.161AspMet: 1.161 ± 0.039
1.071AspAsn: 1.071 ± 0.034
3.816AspPro: 3.816 ± 0.075
1.603AspGln: 1.603 ± 0.045
4.504AspArg: 4.504 ± 0.082
2.548AspSer: 2.548 ± 0.058
2.776AspThr: 2.776 ± 0.062
4.201AspVal: 4.201 ± 0.081
1.076AspTrp: 1.076 ± 0.042
1.423AspTyr: 1.423 ± 0.05
0.0AspXaa: 0.0 ± 0.0
Glu
8.289GluAla: 8.289 ± 0.123
0.444GluCys: 0.444 ± 0.027
3.155GluAsp: 3.155 ± 0.073
3.133GluGlu: 3.133 ± 0.07
2.12GluPhe: 2.12 ± 0.049
4.898GluGly: 4.898 ± 0.077
1.672GluHis: 1.672 ± 0.046
2.467GluIle: 2.467 ± 0.055
1.381GluLys: 1.381 ± 0.054
6.703GluLeu: 6.703 ± 0.11
1.262GluMet: 1.262 ± 0.039
1.176GluAsn: 1.176 ± 0.036
2.984GluPro: 2.984 ± 0.067
2.547GluGln: 2.547 ± 0.058
6.122GluArg: 6.122 ± 0.098
2.812GluSer: 2.812 ± 0.058
2.491GluThr: 2.491 ± 0.06
4.786GluVal: 4.786 ± 0.084
0.731GluTrp: 0.731 ± 0.03
1.116GluTyr: 1.116 ± 0.042
0.0GluXaa: 0.0 ± 0.0
Phe
3.866PheAla: 3.866 ± 0.081
0.293PheCys: 0.293 ± 0.019
2.627PheAsp: 2.627 ± 0.06
2.388PheGlu: 2.388 ± 0.064
1.216PhePhe: 1.216 ± 0.047
3.263PheGly: 3.263 ± 0.07
0.9PheHis: 0.9 ± 0.035
1.363PheIle: 1.363 ± 0.045
0.75PheLys: 0.75 ± 0.032
3.137PheLeu: 3.137 ± 0.071
0.667PheMet: 0.667 ± 0.03
0.963PheAsn: 0.963 ± 0.043
1.494PhePro: 1.494 ± 0.038
1.117PheGln: 1.117 ± 0.044
2.313PheArg: 2.313 ± 0.052
2.016PheSer: 2.016 ± 0.053
1.725PheThr: 1.725 ± 0.05
2.615PheVal: 2.615 ± 0.057
0.531PheTrp: 0.531 ± 0.033
0.765PheTyr: 0.765 ± 0.029
0.0PheXaa: 0.0 ± 0.0
Gly
9.04GlyAla: 9.04 ± 0.111
0.957GlyCys: 0.957 ± 0.035
5.029GlyAsp: 5.029 ± 0.085
6.022GlyGlu: 6.022 ± 0.095
3.578GlyPhe: 3.578 ± 0.072
7.613GlyGly: 7.613 ± 0.123
2.424GlyHis: 2.424 ± 0.053
3.841GlyIle: 3.841 ± 0.075
2.193GlyLys: 2.193 ± 0.062
9.817GlyLeu: 9.817 ± 0.13
2.368GlyMet: 2.368 ± 0.062
2.173GlyAsn: 2.173 ± 0.058
3.94GlyPro: 3.94 ± 0.085
3.238GlyGln: 3.238 ± 0.069
7.496GlyArg: 7.496 ± 0.111
4.943GlySer: 4.943 ± 0.084
4.347GlyThr: 4.347 ± 0.073
6.756GlyVal: 6.756 ± 0.094
1.69GlyTrp: 1.69 ± 0.048
2.085GlyTyr: 2.085 ± 0.055
0.0GlyXaa: 0.0 ± 0.0
His
3.2HisAla: 3.2 ± 0.074
0.32HisCys: 0.32 ± 0.024
1.411HisAsp: 1.411 ± 0.051
1.355HisGlu: 1.355 ± 0.041
0.867HisPhe: 0.867 ± 0.039
2.515HisGly: 2.515 ± 0.059
0.724HisHis: 0.724 ± 0.035
0.716HisIle: 0.716 ± 0.028
0.396HisLys: 0.396 ± 0.021
2.364HisLeu: 2.364 ± 0.052
0.451HisMet: 0.451 ± 0.023
0.451HisAsn: 0.451 ± 0.025
1.696HisPro: 1.696 ± 0.047
0.758HisGln: 0.758 ± 0.03
2.079HisArg: 2.079 ± 0.047
1.023HisSer: 1.023 ± 0.041
0.941HisThr: 0.941 ± 0.037
1.824HisVal: 1.824 ± 0.05
0.454HisTrp: 0.454 ± 0.025
0.572HisTyr: 0.572 ± 0.031
0.0HisXaa: 0.0 ± 0.0
Ile
5.387IleAla: 5.387 ± 0.085
0.296IleCys: 0.296 ± 0.019
3.369IleAsp: 3.369 ± 0.071
3.174IleGlu: 3.174 ± 0.068
1.028IlePhe: 1.028 ± 0.039
4.109IleGly: 4.109 ± 0.084
0.854IleHis: 0.854 ± 0.032
1.381IleIle: 1.381 ± 0.051
0.915IleLys: 0.915 ± 0.033
3.091IleLeu: 3.091 ± 0.074
0.573IleMet: 0.573 ± 0.028
1.134IleAsn: 1.134 ± 0.041
1.966IlePro: 1.966 ± 0.047
1.134IleGln: 1.134 ± 0.04
2.737IleArg: 2.737 ± 0.065
2.033IleSer: 2.033 ± 0.058
2.076IleThr: 2.076 ± 0.057
2.996IleVal: 2.996 ± 0.068
0.392IleTrp: 0.392 ± 0.024
0.81IleTyr: 0.81 ± 0.035
0.0IleXaa: 0.0 ± 0.0
Lys
2.57LysAla: 2.57 ± 0.083
0.134LysCys: 0.134 ± 0.012
1.048LysAsp: 1.048 ± 0.038
0.884LysGlu: 0.884 ± 0.042
0.604LysPhe: 0.604 ± 0.029
1.601LysGly: 1.601 ± 0.048
0.49LysHis: 0.49 ± 0.025
0.873LysIle: 0.873 ± 0.04
0.819LysLys: 0.819 ± 0.057
2.443LysLeu: 2.443 ± 0.067
0.417LysMet: 0.417 ± 0.023
0.447LysAsn: 0.447 ± 0.025
1.345LysPro: 1.345 ± 0.046
0.799LysGln: 0.799 ± 0.033
1.914LysArg: 1.914 ± 0.054
1.151LysSer: 1.151 ± 0.047
1.046LysThr: 1.046 ± 0.044
1.734LysVal: 1.734 ± 0.056
0.244LysTrp: 0.244 ± 0.017
0.415LysTyr: 0.415 ± 0.026
0.0LysXaa: 0.0 ± 0.0
Leu
15.644LeuAla: 15.644 ± 0.173
0.915LeuCys: 0.915 ± 0.035
6.692LeuAsp: 6.692 ± 0.105
6.481LeuGlu: 6.481 ± 0.094
3.322LeuPhe: 3.322 ± 0.078
9.506LeuGly: 9.506 ± 0.128
2.415LeuHis: 2.415 ± 0.054
3.576LeuIle: 3.576 ± 0.068
2.445LeuLys: 2.445 ± 0.067
11.849LeuLeu: 11.849 ± 0.193
2.313LeuMet: 2.313 ± 0.059
2.091LeuAsn: 2.091 ± 0.058
6.383LeuPro: 6.383 ± 0.105
3.636LeuGln: 3.636 ± 0.064
8.904LeuArg: 8.904 ± 0.128
6.029LeuSer: 6.029 ± 0.082
4.23LeuThr: 4.23 ± 0.078
9.449LeuVal: 9.449 ± 0.128
1.455LeuTrp: 1.455 ± 0.05
1.887LeuTyr: 1.887 ± 0.053
0.0LeuXaa: 0.0 ± 0.0
Met
2.847MetAla: 2.847 ± 0.066
0.182MetCys: 0.182 ± 0.014
1.171MetAsp: 1.171 ± 0.041
1.042MetGlu: 1.042 ± 0.038
0.655MetPhe: 0.655 ± 0.03
1.769MetGly: 1.769 ± 0.043
0.539MetHis: 0.539 ± 0.026
0.92MetIle: 0.92 ± 0.033
0.672MetLys: 0.672 ± 0.032
2.712MetLeu: 2.712 ± 0.062
0.471MetMet: 0.471 ± 0.025
0.653MetAsn: 0.653 ± 0.031
1.477MetPro: 1.477 ± 0.042
0.874MetGln: 0.874 ± 0.037
1.963MetArg: 1.963 ± 0.053
1.515MetSer: 1.515 ± 0.041
1.108MetThr: 1.108 ± 0.037
1.577MetVal: 1.577 ± 0.045
0.22MetTrp: 0.22 ± 0.017
0.388MetTyr: 0.388 ± 0.023
0.0MetXaa: 0.0 ± 0.0
Asn
2.696AsnAla: 2.696 ± 0.063
0.246AsnCys: 0.246 ± 0.018
1.152AsnAsp: 1.152 ± 0.036
1.18AsnGlu: 1.18 ± 0.035
0.801AsnPhe: 0.801 ± 0.035
1.824AsnGly: 1.824 ± 0.055
0.488AsnHis: 0.488 ± 0.025
0.959AsnIle: 0.959 ± 0.04
0.431AsnLys: 0.431 ± 0.023
2.308AsnLeu: 2.308 ± 0.059
0.39AsnMet: 0.39 ± 0.026
0.585AsnAsn: 0.585 ± 0.033
1.731AsnPro: 1.731 ± 0.053
0.714AsnGln: 0.714 ± 0.031
1.754AsnArg: 1.754 ± 0.056
0.974AsnSer: 0.974 ± 0.039
1.087AsnThr: 1.087 ± 0.035
1.574AsnVal: 1.574 ± 0.053
0.37AsnTrp: 0.37 ± 0.022
0.511AsnTyr: 0.511 ± 0.023
0.0AsnXaa: 0.0 ± 0.0
Pro
6.993ProAla: 6.993 ± 0.103
0.421ProCys: 0.421 ± 0.026
3.846ProAsp: 3.846 ± 0.073
4.042ProGlu: 4.042 ± 0.081
1.618ProPhe: 1.618 ± 0.048
6.14ProGly: 6.14 ± 0.093
1.084ProHis: 1.084 ± 0.034
1.766ProIle: 1.766 ± 0.049
1.082ProLys: 1.082 ± 0.048
5.093ProLeu: 5.093 ± 0.084
1.372ProMet: 1.372 ± 0.044
1.116ProAsn: 1.116 ± 0.041
3.053ProPro: 3.053 ± 0.095
1.723ProGln: 1.723 ± 0.055
4.214ProArg: 4.214 ± 0.078
2.726ProSer: 2.726 ± 0.064
2.523ProThr: 2.523 ± 0.058
4.604ProVal: 4.604 ± 0.08
0.933ProTrp: 0.933 ± 0.038
0.954ProTyr: 0.954 ± 0.039
0.0ProXaa: 0.0 ± 0.0
Gln
5.267GlnAla: 5.267 ± 0.08
0.279GlnCys: 0.279 ± 0.019
1.448GlnAsp: 1.448 ± 0.042
1.437GlnGlu: 1.437 ± 0.044
1.004GlnPhe: 1.004 ± 0.036
2.851GlnGly: 2.851 ± 0.066
0.776GlnHis: 0.776 ± 0.029
1.161GlnIle: 1.161 ± 0.041
0.6GlnLys: 0.6 ± 0.031
3.903GlnLeu: 3.903 ± 0.082
0.746GlnMet: 0.746 ± 0.028
0.55GlnAsn: 0.55 ± 0.03
2.191GlnPro: 2.191 ± 0.062
1.44GlnGln: 1.44 ± 0.052
3.704GlnArg: 3.704 ± 0.075
1.531GlnSer: 1.531 ± 0.039
1.298GlnThr: 1.298 ± 0.043
2.996GlnVal: 2.996 ± 0.067
0.554GlnTrp: 0.554 ± 0.024
0.609GlnTyr: 0.609 ± 0.028
0.0GlnXaa: 0.0 ± 0.0
Arg
8.969ArgAla: 8.969 ± 0.128
0.878ArgCys: 0.878 ± 0.037
4.663ArgAsp: 4.663 ± 0.075
5.778ArgGlu: 5.778 ± 0.085
3.315ArgPhe: 3.315 ± 0.071
6.249ArgGly: 6.249 ± 0.099
2.429ArgHis: 2.429 ± 0.064
4.049ArgIle: 4.049 ± 0.082
1.656ArgLys: 1.656 ± 0.05
9.343ArgLeu: 9.343 ± 0.114
2.304ArgMet: 2.304 ± 0.055
1.893ArgAsn: 1.893 ± 0.054
4.459ArgPro: 4.459 ± 0.083
3.109ArgGln: 3.109 ± 0.076
7.589ArgArg: 7.589 ± 0.125
4.383ArgSer: 4.383 ± 0.086
3.416ArgThr: 3.416 ± 0.079
6.329ArgVal: 6.329 ± 0.087
1.583ArgTrp: 1.583 ± 0.053
1.937ArgTyr: 1.937 ± 0.055
0.0ArgXaa: 0.0 ± 0.0
Ser
6.008SerAla: 6.008 ± 0.094
0.474SerCys: 0.474 ± 0.028
2.712SerAsp: 2.712 ± 0.063
2.866SerGlu: 2.866 ± 0.059
1.862SerPhe: 1.862 ± 0.055
5.486SerGly: 5.486 ± 0.101
1.208SerHis: 1.208 ± 0.039
2.157SerIle: 2.157 ± 0.052
1.088SerLys: 1.088 ± 0.039
5.509SerLeu: 5.509 ± 0.086
1.252SerMet: 1.252 ± 0.041
1.24SerAsn: 1.24 ± 0.048
3.045SerPro: 3.045 ± 0.061
1.627SerGln: 1.627 ± 0.045
4.444SerArg: 4.444 ± 0.079
2.872SerSer: 2.872 ± 0.072
2.729SerThr: 2.729 ± 0.058
3.889SerVal: 3.889 ± 0.071
0.845SerTrp: 0.845 ± 0.031
1.13SerTyr: 1.13 ± 0.04
0.0SerXaa: 0.0 ± 0.0
Thr
5.272ThrAla: 5.272 ± 0.09
0.433ThrCys: 0.433 ± 0.027
2.406ThrAsp: 2.406 ± 0.055
2.054ThrGlu: 2.054 ± 0.056
1.313ThrPhe: 1.313 ± 0.04
4.554ThrGly: 4.554 ± 0.084
1.088ThrHis: 1.088 ± 0.036
1.779ThrIle: 1.779 ± 0.05
0.765ThrLys: 0.765 ± 0.034
5.641ThrLeu: 5.641 ± 0.08
0.94ThrMet: 0.94 ± 0.034
0.915ThrAsn: 0.915 ± 0.038
3.167ThrPro: 3.167 ± 0.066
1.396ThrGln: 1.396 ± 0.043
3.869ThrArg: 3.869 ± 0.075
2.317ThrSer: 2.317 ± 0.059
2.408ThrThr: 2.408 ± 0.057
3.429ThrVal: 3.429 ± 0.078
0.778ThrTrp: 0.778 ± 0.034
0.927ThrTyr: 0.927 ± 0.039
0.0ThrXaa: 0.0 ± 0.0
Val
9.857ValAla: 9.857 ± 0.107
0.66ValCys: 0.66 ± 0.03
4.974ValAsp: 4.974 ± 0.082
4.977ValGlu: 4.977 ± 0.097
2.883ValPhe: 2.883 ± 0.062
6.056ValGly: 6.056 ± 0.092
1.896ValHis: 1.896 ± 0.054
3.231ValIle: 3.231 ± 0.073
1.49ValLys: 1.49 ± 0.057
9.328ValLeu: 9.328 ± 0.131
1.663ValMet: 1.663 ± 0.047
1.76ValAsn: 1.76 ± 0.051
4.051ValPro: 4.051 ± 0.079
2.26ValGln: 2.26 ± 0.061
5.803ValArg: 5.803 ± 0.085
4.171ValSer: 4.171 ± 0.082
3.323ValThr: 3.323 ± 0.073
6.909ValVal: 6.909 ± 0.094
1.024ValTrp: 1.024 ± 0.04
1.446ValTyr: 1.446 ± 0.048
0.0ValXaa: 0.0 ± 0.0
Trp
1.359TrpAla: 1.359 ± 0.044
0.205TrpCys: 0.205 ± 0.018
0.7TrpAsp: 0.7 ± 0.033
0.636TrpGlu: 0.636 ± 0.029
0.636TrpPhe: 0.636 ± 0.028
0.989TrpGly: 0.989 ± 0.036
0.411TrpHis: 0.411 ± 0.023
0.75TrpIle: 0.75 ± 0.03
0.307TrpLys: 0.307 ± 0.019
2.405TrpLeu: 2.405 ± 0.06
0.462TrpMet: 0.462 ± 0.023
0.361TrpAsn: 0.361 ± 0.023
0.919TrpPro: 0.919 ± 0.037
0.719TrpGln: 0.719 ± 0.035
1.577TrpArg: 1.577 ± 0.048
0.963TrpSer: 0.963 ± 0.038
0.728TrpThr: 0.728 ± 0.031
1.175TrpVal: 1.175 ± 0.042
0.357TrpTrp: 0.357 ± 0.021
0.307TrpTyr: 0.307 ± 0.02
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.336TyrAla: 2.336 ± 0.055
0.177TyrCys: 0.177 ± 0.015
1.102TyrAsp: 1.102 ± 0.036
1.143TyrGlu: 1.143 ± 0.04
0.795TyrPhe: 0.795 ± 0.031
1.82TyrGly: 1.82 ± 0.049
0.442TyrHis: 0.442 ± 0.026
0.696TyrIle: 0.696 ± 0.034
0.334TyrLys: 0.334 ± 0.021
2.225TyrLeu: 2.225 ± 0.051
0.335TyrMet: 0.335 ± 0.021
0.475TyrAsn: 0.475 ± 0.026
1.061TyrPro: 1.061 ± 0.045
0.76TyrGln: 0.76 ± 0.035
1.995TyrArg: 1.995 ± 0.055
1.124TyrSer: 1.124 ± 0.034
1.007TyrThr: 1.007 ± 0.041
1.448TyrVal: 1.448 ± 0.045
0.323TyrTrp: 0.323 ± 0.017
0.506TyrTyr: 0.506 ± 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 2448 proteins (781265 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