Amino acid dipepetide frequency for Actinomadura sp. KC345

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
21.019AlaAla: 21.019 ± 0.157
1.092AlaCys: 1.092 ± 0.02
8.051AlaAsp: 8.051 ± 0.067
8.916AlaGlu: 8.916 ± 0.07
3.69AlaPhe: 3.69 ± 0.045
13.953AlaGly: 13.953 ± 0.108
2.657AlaHis: 2.657 ± 0.038
4.061AlaIle: 4.061 ± 0.041
2.61AlaLys: 2.61 ± 0.042
13.8AlaLeu: 13.8 ± 0.11
2.726AlaMet: 2.726 ± 0.033
1.821AlaAsn: 1.821 ± 0.03
6.603AlaPro: 6.603 ± 0.065
3.197AlaGln: 3.197 ± 0.044
10.777AlaArg: 10.777 ± 0.068
5.785AlaSer: 5.785 ± 0.052
6.216AlaThr: 6.216 ± 0.053
11.803AlaVal: 11.803 ± 0.084
1.864AlaTrp: 1.864 ± 0.029
2.563AlaTyr: 2.563 ± 0.035
0.0AlaXaa: 0.0 ± 0.0
Cys
1.013CysAla: 1.013 ± 0.023
0.101CysCys: 0.101 ± 0.007
0.521CysAsp: 0.521 ± 0.014
0.441CysGlu: 0.441 ± 0.012
0.226CysPhe: 0.226 ± 0.009
1.013CysGly: 1.013 ± 0.021
0.202CysHis: 0.202 ± 0.01
0.165CysIle: 0.165 ± 0.009
0.12CysLys: 0.12 ± 0.008
0.697CysLeu: 0.697 ± 0.02
0.146CysMet: 0.146 ± 0.008
0.122CysAsn: 0.122 ± 0.008
0.499CysPro: 0.499 ± 0.015
0.168CysGln: 0.168 ± 0.009
0.631CysArg: 0.631 ± 0.016
0.419CysSer: 0.419 ± 0.014
0.466CysThr: 0.466 ± 0.014
0.692CysVal: 0.692 ± 0.019
0.105CysTrp: 0.105 ± 0.008
0.153CysTyr: 0.153 ± 0.008
0.0CysXaa: 0.0 ± 0.0
Asp
7.768AspAla: 7.768 ± 0.053
0.364AspCys: 0.364 ± 0.013
4.149AspAsp: 4.149 ± 0.046
4.323AspGlu: 4.323 ± 0.042
1.56AspPhe: 1.56 ± 0.023
6.705AspGly: 6.705 ± 0.066
1.473AspHis: 1.473 ± 0.023
1.909AspIle: 1.909 ± 0.034
1.021AspLys: 1.021 ± 0.024
6.767AspLeu: 6.767 ± 0.057
1.027AspMet: 1.027 ± 0.022
0.841AspAsn: 0.841 ± 0.02
4.739AspPro: 4.739 ± 0.049
1.454AspGln: 1.454 ± 0.025
5.335AspArg: 5.335 ± 0.059
2.139AspSer: 2.139 ± 0.028
2.696AspThr: 2.696 ± 0.04
5.374AspVal: 5.374 ± 0.046
0.955AspTrp: 0.955 ± 0.021
1.127AspTyr: 1.127 ± 0.023
0.0AspXaa: 0.0 ± 0.0
Glu
7.442GluAla: 7.442 ± 0.072
0.39GluCys: 0.39 ± 0.014
3.1GluAsp: 3.1 ± 0.038
3.653GluGlu: 3.653 ± 0.049
1.598GluPhe: 1.598 ± 0.025
4.405GluGly: 4.405 ± 0.042
1.637GluHis: 1.637 ± 0.028
2.671GluIle: 2.671 ± 0.035
1.364GluLys: 1.364 ± 0.031
6.648GluLeu: 6.648 ± 0.053
1.089GluMet: 1.089 ± 0.021
1.062GluAsn: 1.062 ± 0.023
3.78GluPro: 3.78 ± 0.045
2.0GluGln: 2.0 ± 0.034
6.242GluArg: 6.242 ± 0.063
2.669GluSer: 2.669 ± 0.035
3.104GluThr: 3.104 ± 0.035
4.749GluVal: 4.749 ± 0.048
0.846GluTrp: 0.846 ± 0.018
1.121GluTyr: 1.121 ± 0.024
0.0GluXaa: 0.0 ± 0.0
Phe
3.802PheAla: 3.802 ± 0.043
0.308PheCys: 0.308 ± 0.011
2.006PheAsp: 2.006 ± 0.033
1.556PheGlu: 1.556 ± 0.029
0.862PhePhe: 0.862 ± 0.021
3.274PheGly: 3.274 ± 0.041
0.615PheHis: 0.615 ± 0.016
0.815PheIle: 0.815 ± 0.019
0.481PheLys: 0.481 ± 0.016
2.607PheLeu: 2.607 ± 0.035
0.478PheMet: 0.478 ± 0.015
0.551PheAsn: 0.551 ± 0.016
1.401PhePro: 1.401 ± 0.021
0.698PheGln: 0.698 ± 0.016
1.916PheArg: 1.916 ± 0.032
1.394PheSer: 1.394 ± 0.026
1.94PheThr: 1.94 ± 0.031
2.343PheVal: 2.343 ± 0.034
0.424PheTrp: 0.424 ± 0.015
0.585PheTyr: 0.585 ± 0.017
0.0PheXaa: 0.0 ± 0.0
Gly
11.211GlyAla: 11.211 ± 0.079
0.836GlyCys: 0.836 ± 0.022
5.927GlyAsp: 5.927 ± 0.051
5.765GlyGlu: 5.765 ± 0.048
2.977GlyPhe: 2.977 ± 0.041
9.851GlyGly: 9.851 ± 0.088
2.333GlyHis: 2.333 ± 0.035
3.507GlyIle: 3.507 ± 0.041
2.264GlyLys: 2.264 ± 0.038
9.794GlyLeu: 9.794 ± 0.064
2.178GlyMet: 2.178 ± 0.029
1.583GlyAsn: 1.583 ± 0.027
5.54GlyPro: 5.54 ± 0.058
2.492GlyGln: 2.492 ± 0.04
8.96GlyArg: 8.96 ± 0.057
4.924GlySer: 4.924 ± 0.047
6.05GlyThr: 6.05 ± 0.059
7.878GlyVal: 7.878 ± 0.065
1.748GlyTrp: 1.748 ± 0.028
2.244GlyTyr: 2.244 ± 0.031
0.0GlyXaa: 0.0 ± 0.0
His
2.611HisAla: 2.611 ± 0.04
0.221HisCys: 0.221 ± 0.009
1.417HisAsp: 1.417 ± 0.024
1.205HisGlu: 1.205 ± 0.023
0.589HisPhe: 0.589 ± 0.017
2.43HisGly: 2.43 ± 0.032
0.621HisHis: 0.621 ± 0.018
0.703HisIle: 0.703 ± 0.02
0.292HisLys: 0.292 ± 0.011
2.347HisLeu: 2.347 ± 0.035
0.389HisMet: 0.389 ± 0.013
0.326HisAsn: 0.326 ± 0.012
1.704HisPro: 1.704 ± 0.027
0.554HisGln: 0.554 ± 0.014
2.164HisArg: 2.164 ± 0.031
0.869HisSer: 0.869 ± 0.018
1.093HisThr: 1.093 ± 0.023
1.819HisVal: 1.819 ± 0.028
0.356HisTrp: 0.356 ± 0.012
0.467HisTyr: 0.467 ± 0.016
0.0HisXaa: 0.0 ± 0.0
Ile
5.242IleAla: 5.242 ± 0.058
0.304IleCys: 0.304 ± 0.012
2.443IleAsp: 2.443 ± 0.03
2.324IleGlu: 2.324 ± 0.033
0.823IlePhe: 0.823 ± 0.019
3.918IleGly: 3.918 ± 0.041
0.602IleHis: 0.602 ± 0.015
1.079IleIle: 1.079 ± 0.024
0.716IleLys: 0.716 ± 0.019
2.727IleLeu: 2.727 ± 0.035
0.56IleMet: 0.56 ± 0.015
0.703IleAsn: 0.703 ± 0.018
1.843IlePro: 1.843 ± 0.03
0.713IleGln: 0.713 ± 0.018
2.48IleArg: 2.48 ± 0.033
1.717IleSer: 1.717 ± 0.031
2.301IleThr: 2.301 ± 0.034
3.284IleVal: 3.284 ± 0.038
0.395IleTrp: 0.395 ± 0.015
0.539IleTyr: 0.539 ± 0.015
0.0IleXaa: 0.0 ± 0.0
Lys
2.75LysAla: 2.75 ± 0.042
0.104LysCys: 0.104 ± 0.008
1.173LysAsp: 1.173 ± 0.026
1.11LysGlu: 1.11 ± 0.024
0.412LysPhe: 0.412 ± 0.016
1.733LysGly: 1.733 ± 0.03
0.411LysHis: 0.411 ± 0.013
0.932LysIle: 0.932 ± 0.022
0.664LysLys: 0.664 ± 0.025
1.795LysLeu: 1.795 ± 0.032
0.383LysMet: 0.383 ± 0.012
0.44LysAsn: 0.44 ± 0.016
1.291LysPro: 1.291 ± 0.028
0.583LysGln: 0.583 ± 0.019
1.567LysArg: 1.567 ± 0.028
0.999LysSer: 0.999 ± 0.027
1.187LysThr: 1.187 ± 0.026
1.811LysVal: 1.811 ± 0.032
0.239LysTrp: 0.239 ± 0.01
0.389LysTyr: 0.389 ± 0.014
0.0LysXaa: 0.0 ± 0.0
Leu
15.143LeuAla: 15.143 ± 0.102
0.791LeuCys: 0.791 ± 0.018
6.956LeuAsp: 6.956 ± 0.056
4.992LeuGlu: 4.992 ± 0.053
2.621LeuPhe: 2.621 ± 0.034
9.496LeuGly: 9.496 ± 0.071
2.18LeuHis: 2.18 ± 0.031
3.516LeuIle: 3.516 ± 0.046
1.852LeuLys: 1.852 ± 0.03
10.731LeuLeu: 10.731 ± 0.093
1.714LeuMet: 1.714 ± 0.027
1.792LeuAsn: 1.792 ± 0.031
6.211LeuPro: 6.211 ± 0.062
2.021LeuGln: 2.021 ± 0.032
8.881LeuArg: 8.881 ± 0.076
5.194LeuSer: 5.194 ± 0.049
6.266LeuThr: 6.266 ± 0.052
8.688LeuVal: 8.688 ± 0.069
1.263LeuTrp: 1.263 ± 0.028
1.762LeuTyr: 1.762 ± 0.026
0.0LeuXaa: 0.0 ± 0.0
Met
2.516MetAla: 2.516 ± 0.031
0.151MetCys: 0.151 ± 0.008
1.064MetAsp: 1.064 ± 0.019
0.897MetGlu: 0.897 ± 0.021
0.552MetPhe: 0.552 ± 0.015
1.44MetGly: 1.44 ± 0.027
0.377MetHis: 0.377 ± 0.014
0.815MetIle: 0.815 ± 0.02
0.435MetLys: 0.435 ± 0.014
1.975MetLeu: 1.975 ± 0.028
0.354MetMet: 0.354 ± 0.013
0.465MetAsn: 0.465 ± 0.013
1.251MetPro: 1.251 ± 0.023
0.442MetGln: 0.442 ± 0.013
1.762MetArg: 1.762 ± 0.031
1.378MetSer: 1.378 ± 0.024
1.606MetThr: 1.606 ± 0.026
1.439MetVal: 1.439 ± 0.025
0.245MetTrp: 0.245 ± 0.01
0.308MetTyr: 0.308 ± 0.011
0.0MetXaa: 0.0 ± 0.0
Asn
2.17AsnAla: 2.17 ± 0.028
0.168AsnCys: 0.168 ± 0.01
0.936AsnAsp: 0.936 ± 0.021
0.89AsnGlu: 0.89 ± 0.022
0.433AsnPhe: 0.433 ± 0.014
1.797AsnGly: 1.797 ± 0.031
0.361AsnHis: 0.361 ± 0.013
0.653AsnIle: 0.653 ± 0.016
0.359AsnLys: 0.359 ± 0.013
1.694AsnLeu: 1.694 ± 0.031
0.31AsnMet: 0.31 ± 0.011
0.32AsnAsn: 0.32 ± 0.013
1.283AsnPro: 1.283 ± 0.023
0.461AsnGln: 0.461 ± 0.017
1.28AsnArg: 1.28 ± 0.022
0.702AsnSer: 0.702 ± 0.018
0.927AsnThr: 0.927 ± 0.022
1.456AsnVal: 1.456 ± 0.027
0.261AsnTrp: 0.261 ± 0.01
0.385AsnTyr: 0.385 ± 0.012
0.0AsnXaa: 0.0 ± 0.0
Pro
8.242ProAla: 8.242 ± 0.085
0.374ProCys: 0.374 ± 0.015
4.776ProAsp: 4.776 ± 0.047
4.527ProGlu: 4.527 ± 0.047
1.63ProPhe: 1.63 ± 0.025
7.289ProGly: 7.289 ± 0.068
1.286ProHis: 1.286 ± 0.028
1.603ProIle: 1.603 ± 0.024
1.183ProLys: 1.183 ± 0.024
5.099ProLeu: 5.099 ± 0.062
1.178ProMet: 1.178 ± 0.022
0.899ProAsn: 0.899 ± 0.02
4.225ProPro: 4.225 ± 0.057
1.431ProGln: 1.431 ± 0.029
4.334ProArg: 4.334 ± 0.043
3.307ProSer: 3.307 ± 0.038
2.582ProThr: 2.582 ± 0.039
5.315ProVal: 5.315 ± 0.049
0.916ProTrp: 0.916 ± 0.022
1.297ProTyr: 1.297 ± 0.023
0.0ProXaa: 0.0 ± 0.0
Gln
3.359GlnAla: 3.359 ± 0.039
0.167GlnCys: 0.167 ± 0.009
1.335GlnAsp: 1.335 ± 0.024
1.392GlnGlu: 1.392 ± 0.028
0.626GlnPhe: 0.626 ± 0.015
2.125GlnGly: 2.125 ± 0.036
0.521GlnHis: 0.521 ± 0.015
1.122GlnIle: 1.122 ± 0.022
0.556GlnLys: 0.556 ± 0.018
2.303GlnLeu: 2.303 ± 0.036
0.48GlnMet: 0.48 ± 0.015
0.499GlnAsn: 0.499 ± 0.014
1.38GlnPro: 1.38 ± 0.033
0.892GlnGln: 0.892 ± 0.031
2.259GlnArg: 2.259 ± 0.035
1.097GlnSer: 1.097 ± 0.02
1.201GlnThr: 1.201 ± 0.025
2.338GlnVal: 2.338 ± 0.03
0.367GlnTrp: 0.367 ± 0.012
0.492GlnTyr: 0.492 ± 0.016
0.0GlnXaa: 0.0 ± 0.0
Arg
10.166ArgAla: 10.166 ± 0.087
0.628ArgCys: 0.628 ± 0.017
5.152ArgAsp: 5.152 ± 0.052
5.234ArgGlu: 5.234 ± 0.049
2.566ArgPhe: 2.566 ± 0.031
6.339ArgGly: 6.339 ± 0.052
2.194ArgHis: 2.194 ± 0.031
3.397ArgIle: 3.397 ± 0.04
1.67ArgLys: 1.67 ± 0.029
9.673ArgLeu: 9.673 ± 0.072
2.026ArgMet: 2.026 ± 0.028
1.449ArgAsn: 1.449 ± 0.028
5.585ArgPro: 5.585 ± 0.056
2.168ArgGln: 2.168 ± 0.029
8.774ArgArg: 8.774 ± 0.074
4.106ArgSer: 4.106 ± 0.043
5.114ArgThr: 5.114 ± 0.05
6.423ArgVal: 6.423 ± 0.048
1.455ArgTrp: 1.455 ± 0.025
1.94ArgTyr: 1.94 ± 0.029
0.0ArgXaa: 0.0 ± 0.0
Ser
6.075SerAla: 6.075 ± 0.046
0.381SerCys: 0.381 ± 0.015
2.564SerAsp: 2.564 ± 0.038
2.485SerGlu: 2.485 ± 0.032
1.486SerPhe: 1.486 ± 0.021
5.912SerGly: 5.912 ± 0.058
0.935SerHis: 0.935 ± 0.018
1.6SerIle: 1.6 ± 0.027
0.968SerLys: 0.968 ± 0.023
4.628SerLeu: 4.628 ± 0.042
1.171SerMet: 1.171 ± 0.021
0.754SerAsn: 0.754 ± 0.018
3.214SerPro: 3.214 ± 0.038
1.094SerGln: 1.094 ± 0.019
3.833SerArg: 3.833 ± 0.039
2.567SerSer: 2.567 ± 0.04
2.613SerThr: 2.613 ± 0.039
3.906SerVal: 3.906 ± 0.039
0.808SerTrp: 0.808 ± 0.021
1.083SerTyr: 1.083 ± 0.021
0.0SerXaa: 0.0 ± 0.0
Thr
7.743ThrAla: 7.743 ± 0.064
0.438ThrCys: 0.438 ± 0.013
3.048ThrAsp: 3.048 ± 0.039
3.0ThrGlu: 3.0 ± 0.038
1.69ThrPhe: 1.69 ± 0.03
6.629ThrGly: 6.629 ± 0.058
1.014ThrHis: 1.014 ± 0.018
1.905ThrIle: 1.905 ± 0.031
1.01ThrLys: 1.01 ± 0.024
5.422ThrLeu: 5.422 ± 0.049
1.116ThrMet: 1.116 ± 0.023
0.84ThrAsn: 0.84 ± 0.019
3.588ThrPro: 3.588 ± 0.039
1.089ThrGln: 1.089 ± 0.022
4.127ThrArg: 4.127 ± 0.042
2.862ThrSer: 2.862 ± 0.033
3.139ThrThr: 3.139 ± 0.046
5.356ThrVal: 5.356 ± 0.055
0.885ThrTrp: 0.885 ± 0.02
1.13ThrTyr: 1.13 ± 0.024
0.0ThrXaa: 0.0 ± 0.0
Val
10.892ValAla: 10.892 ± 0.082
0.744ValCys: 0.744 ± 0.018
4.868ValAsp: 4.868 ± 0.05
4.856ValGlu: 4.856 ± 0.042
2.567ValPhe: 2.567 ± 0.03
6.484ValGly: 6.484 ± 0.062
2.006ValHis: 2.006 ± 0.026
3.147ValIle: 3.147 ± 0.039
1.689ValLys: 1.689 ± 0.034
9.54ValLeu: 9.54 ± 0.073
1.553ValMet: 1.553 ± 0.03
1.667ValAsn: 1.667 ± 0.026
5.473ValPro: 5.473 ± 0.052
2.063ValGln: 2.063 ± 0.03
7.404ValArg: 7.404 ± 0.06
4.209ValSer: 4.209 ± 0.039
5.437ValThr: 5.437 ± 0.054
7.974ValVal: 7.974 ± 0.07
1.142ValTrp: 1.142 ± 0.026
1.529ValTyr: 1.529 ± 0.027
0.0ValXaa: 0.0 ± 0.0
Trp
1.615TrpAla: 1.615 ± 0.024
0.145TrpCys: 0.145 ± 0.008
0.89TrpAsp: 0.89 ± 0.022
0.756TrpGlu: 0.756 ± 0.018
0.518TrpPhe: 0.518 ± 0.015
1.091TrpGly: 1.091 ± 0.021
0.345TrpHis: 0.345 ± 0.013
0.568TrpIle: 0.568 ± 0.016
0.338TrpLys: 0.338 ± 0.012
1.695TrpLeu: 1.695 ± 0.034
0.284TrpMet: 0.284 ± 0.011
0.377TrpAsn: 0.377 ± 0.012
0.856TrpPro: 0.856 ± 0.019
0.462TrpGln: 0.462 ± 0.016
1.517TrpArg: 1.517 ± 0.026
0.827TrpSer: 0.827 ± 0.019
1.03TrpThr: 1.03 ± 0.021
0.961TrpVal: 0.961 ± 0.022
0.343TrpTrp: 0.343 ± 0.012
0.33TrpTyr: 0.33 ± 0.014
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.426TyrAla: 2.426 ± 0.034
0.192TyrCys: 0.192 ± 0.01
1.352TyrAsp: 1.352 ± 0.027
1.248TyrGlu: 1.248 ± 0.024
0.631TyrPhe: 0.631 ± 0.017
2.178TyrGly: 2.178 ± 0.032
0.408TyrHis: 0.408 ± 0.016
0.543TyrIle: 0.543 ± 0.016
0.381TyrLys: 0.381 ± 0.012
2.126TyrLeu: 2.126 ± 0.03
0.309TyrMet: 0.309 ± 0.012
0.335TyrAsn: 0.335 ± 0.012
1.03TyrPro: 1.03 ± 0.024
0.527TyrGln: 0.527 ± 0.014
1.816TyrArg: 1.816 ± 0.03
0.916TyrSer: 0.916 ± 0.02
1.064TyrThr: 1.064 ± 0.026
1.634TyrVal: 1.634 ± 0.029
0.331TyrTrp: 0.331 ± 0.013
0.432TyrTyr: 0.432 ± 0.013
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 7614 proteins (2370126 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