Amino acid dipepetide frequency for Actinomadura sp. GC306

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
22.108AlaAla: 22.108 ± 0.188
1.103AlaCys: 1.103 ± 0.023
8.31AlaAsp: 8.31 ± 0.074
9.471AlaGlu: 9.471 ± 0.091
3.605AlaPhe: 3.605 ± 0.049
14.053AlaGly: 14.053 ± 0.114
2.661AlaHis: 2.661 ± 0.033
3.985AlaIle: 3.985 ± 0.047
2.776AlaLys: 2.776 ± 0.047
13.952AlaLeu: 13.952 ± 0.124
2.672AlaMet: 2.672 ± 0.035
1.871AlaAsn: 1.871 ± 0.036
6.81AlaPro: 6.81 ± 0.081
3.302AlaGln: 3.302 ± 0.049
10.848AlaArg: 10.848 ± 0.107
5.417AlaSer: 5.417 ± 0.054
6.192AlaThr: 6.192 ± 0.066
11.796AlaVal: 11.796 ± 0.099
1.843AlaTrp: 1.843 ± 0.037
2.616AlaTyr: 2.616 ± 0.042
0.0AlaXaa: 0.0 ± 0.0
Cys
1.003CysAla: 1.003 ± 0.025
0.093CysCys: 0.093 ± 0.007
0.534CysAsp: 0.534 ± 0.017
0.45CysGlu: 0.45 ± 0.015
0.224CysPhe: 0.224 ± 0.011
1.002CysGly: 1.002 ± 0.025
0.206CysHis: 0.206 ± 0.01
0.17CysIle: 0.17 ± 0.008
0.128CysLys: 0.128 ± 0.009
0.688CysLeu: 0.688 ± 0.019
0.133CysMet: 0.133 ± 0.007
0.138CysAsn: 0.138 ± 0.01
0.535CysPro: 0.535 ± 0.019
0.163CysGln: 0.163 ± 0.008
0.671CysArg: 0.671 ± 0.02
0.404CysSer: 0.404 ± 0.016
0.492CysThr: 0.492 ± 0.015
0.674CysVal: 0.674 ± 0.017
0.105CysTrp: 0.105 ± 0.007
0.158CysTyr: 0.158 ± 0.009
0.0CysXaa: 0.0 ± 0.0
Asp
7.957AspAla: 7.957 ± 0.07
0.394AspCys: 0.394 ± 0.015
4.056AspAsp: 4.056 ± 0.051
4.398AspGlu: 4.398 ± 0.056
1.624AspPhe: 1.624 ± 0.031
6.475AspGly: 6.475 ± 0.072
1.396AspHis: 1.396 ± 0.027
1.964AspIle: 1.964 ± 0.03
1.049AspLys: 1.049 ± 0.026
6.65AspLeu: 6.65 ± 0.067
1.002AspMet: 1.002 ± 0.018
0.854AspAsn: 0.854 ± 0.023
4.781AspPro: 4.781 ± 0.053
1.395AspGln: 1.395 ± 0.032
5.327AspArg: 5.327 ± 0.055
2.021AspSer: 2.021 ± 0.035
2.659AspThr: 2.659 ± 0.038
5.343AspVal: 5.343 ± 0.055
0.936AspTrp: 0.936 ± 0.022
1.155AspTyr: 1.155 ± 0.026
0.0AspXaa: 0.0 ± 0.0
Glu
7.432GluAla: 7.432 ± 0.071
0.394GluCys: 0.394 ± 0.014
3.052GluAsp: 3.052 ± 0.04
3.586GluGlu: 3.586 ± 0.048
1.579GluPhe: 1.579 ± 0.03
4.43GluGly: 4.43 ± 0.041
1.654GluHis: 1.654 ± 0.033
2.69GluIle: 2.69 ± 0.042
1.377GluLys: 1.377 ± 0.031
6.912GluLeu: 6.912 ± 0.063
1.11GluMet: 1.11 ± 0.025
1.078GluAsn: 1.078 ± 0.024
3.742GluPro: 3.742 ± 0.052
2.073GluGln: 2.073 ± 0.038
6.126GluArg: 6.126 ± 0.069
2.581GluSer: 2.581 ± 0.039
3.089GluThr: 3.089 ± 0.038
4.87GluVal: 4.87 ± 0.049
0.841GluTrp: 0.841 ± 0.019
1.194GluTyr: 1.194 ± 0.024
0.0GluXaa: 0.0 ± 0.0
Phe
3.827PheAla: 3.827 ± 0.046
0.306PheCys: 0.306 ± 0.012
1.991PheAsp: 1.991 ± 0.034
1.555PheGlu: 1.555 ± 0.027
0.865PhePhe: 0.865 ± 0.026
3.232PheGly: 3.232 ± 0.042
0.61PheHis: 0.61 ± 0.018
0.824PheIle: 0.824 ± 0.022
0.519PheLys: 0.519 ± 0.018
2.568PheLeu: 2.568 ± 0.038
0.464PheMet: 0.464 ± 0.015
0.561PheAsn: 0.561 ± 0.017
1.426PhePro: 1.426 ± 0.024
0.672PheGln: 0.672 ± 0.016
1.936PheArg: 1.936 ± 0.03
1.327PheSer: 1.327 ± 0.027
1.948PheThr: 1.948 ± 0.031
2.292PheVal: 2.292 ± 0.037
0.414PheTrp: 0.414 ± 0.017
0.606PheTyr: 0.606 ± 0.019
0.0PheXaa: 0.0 ± 0.0
Gly
11.042GlyAla: 11.042 ± 0.083
0.848GlyCys: 0.848 ± 0.022
5.857GlyAsp: 5.857 ± 0.06
5.596GlyGlu: 5.596 ± 0.063
2.981GlyPhe: 2.981 ± 0.049
9.715GlyGly: 9.715 ± 0.093
2.259GlyHis: 2.259 ± 0.035
3.511GlyIle: 3.511 ± 0.046
2.315GlyLys: 2.315 ± 0.033
9.563GlyLeu: 9.563 ± 0.09
2.178GlyMet: 2.178 ± 0.027
1.633GlyAsn: 1.633 ± 0.034
5.548GlyPro: 5.548 ± 0.062
2.429GlyGln: 2.429 ± 0.037
8.836GlyArg: 8.836 ± 0.081
4.638GlySer: 4.638 ± 0.059
6.08GlyThr: 6.08 ± 0.065
7.71GlyVal: 7.71 ± 0.066
1.692GlyTrp: 1.692 ± 0.031
2.268GlyTyr: 2.268 ± 0.035
0.0GlyXaa: 0.0 ± 0.0
His
2.649HisAla: 2.649 ± 0.042
0.208HisCys: 0.208 ± 0.01
1.377HisAsp: 1.377 ± 0.026
1.199HisGlu: 1.199 ± 0.024
0.597HisPhe: 0.597 ± 0.018
2.368HisGly: 2.368 ± 0.034
0.66HisHis: 0.66 ± 0.02
0.725HisIle: 0.725 ± 0.018
0.305HisLys: 0.305 ± 0.013
2.372HisLeu: 2.372 ± 0.037
0.354HisMet: 0.354 ± 0.012
0.342HisAsn: 0.342 ± 0.014
1.691HisPro: 1.691 ± 0.029
0.517HisGln: 0.517 ± 0.019
2.125HisArg: 2.125 ± 0.032
0.876HisSer: 0.876 ± 0.02
1.023HisThr: 1.023 ± 0.022
1.736HisVal: 1.736 ± 0.033
0.347HisTrp: 0.347 ± 0.012
0.483HisTyr: 0.483 ± 0.016
0.0HisXaa: 0.0 ± 0.0
Ile
5.202IleAla: 5.202 ± 0.052
0.304IleCys: 0.304 ± 0.012
2.455IleAsp: 2.455 ± 0.037
2.403IleGlu: 2.403 ± 0.034
0.801IlePhe: 0.801 ± 0.021
3.824IleGly: 3.824 ± 0.042
0.594IleHis: 0.594 ± 0.015
1.123IleIle: 1.123 ± 0.023
0.779IleLys: 0.779 ± 0.023
2.645IleLeu: 2.645 ± 0.039
0.553IleMet: 0.553 ± 0.016
0.722IleAsn: 0.722 ± 0.019
1.862IlePro: 1.862 ± 0.032
0.726IleGln: 0.726 ± 0.02
2.527IleArg: 2.527 ± 0.036
1.67IleSer: 1.67 ± 0.027
2.291IleThr: 2.291 ± 0.036
3.26IleVal: 3.26 ± 0.042
0.402IleTrp: 0.402 ± 0.014
0.575IleTyr: 0.575 ± 0.018
0.0IleXaa: 0.0 ± 0.0
Lys
2.816LysAla: 2.816 ± 0.047
0.11LysCys: 0.11 ± 0.008
1.182LysAsp: 1.182 ± 0.025
1.15LysGlu: 1.15 ± 0.029
0.43LysPhe: 0.43 ± 0.015
1.723LysGly: 1.723 ± 0.033
0.411LysHis: 0.411 ± 0.016
0.971LysIle: 0.971 ± 0.025
0.676LysLys: 0.676 ± 0.025
1.853LysLeu: 1.853 ± 0.029
0.425LysMet: 0.425 ± 0.016
0.475LysAsn: 0.475 ± 0.016
1.315LysPro: 1.315 ± 0.028
0.591LysGln: 0.591 ± 0.018
1.597LysArg: 1.597 ± 0.029
1.076LysSer: 1.076 ± 0.028
1.157LysThr: 1.157 ± 0.028
1.887LysVal: 1.887 ± 0.035
0.27LysTrp: 0.27 ± 0.012
0.419LysTyr: 0.419 ± 0.018
0.0LysXaa: 0.0 ± 0.0
Leu
15.288LeuAla: 15.288 ± 0.126
0.8LeuCys: 0.8 ± 0.021
6.904LeuAsp: 6.904 ± 0.066
4.991LeuGlu: 4.991 ± 0.059
2.632LeuPhe: 2.632 ± 0.043
9.269LeuGly: 9.269 ± 0.084
2.15LeuHis: 2.15 ± 0.033
3.457LeuIle: 3.457 ± 0.049
1.947LeuLys: 1.947 ± 0.033
10.784LeuLeu: 10.784 ± 0.104
1.664LeuMet: 1.664 ± 0.029
1.838LeuAsn: 1.838 ± 0.033
6.362LeuPro: 6.362 ± 0.051
2.146LeuGln: 2.146 ± 0.035
9.082LeuArg: 9.082 ± 0.08
4.881LeuSer: 4.881 ± 0.048
6.305LeuThr: 6.305 ± 0.059
8.604LeuVal: 8.604 ± 0.086
1.215LeuTrp: 1.215 ± 0.024
1.771LeuTyr: 1.771 ± 0.028
0.0LeuXaa: 0.0 ± 0.0
Met
2.522MetAla: 2.522 ± 0.036
0.161MetCys: 0.161 ± 0.009
0.988MetAsp: 0.988 ± 0.018
0.84MetGlu: 0.84 ± 0.019
0.552MetPhe: 0.552 ± 0.019
1.439MetGly: 1.439 ± 0.027
0.365MetHis: 0.365 ± 0.014
0.771MetIle: 0.771 ± 0.021
0.449MetLys: 0.449 ± 0.014
1.979MetLeu: 1.979 ± 0.028
0.353MetMet: 0.353 ± 0.015
0.445MetAsn: 0.445 ± 0.014
1.232MetPro: 1.232 ± 0.024
0.449MetGln: 0.449 ± 0.016
1.716MetArg: 1.716 ± 0.031
1.334MetSer: 1.334 ± 0.024
1.567MetThr: 1.567 ± 0.027
1.413MetVal: 1.413 ± 0.028
0.234MetTrp: 0.234 ± 0.011
0.32MetTyr: 0.32 ± 0.012
0.0MetXaa: 0.0 ± 0.0
Asn
2.259AsnAla: 2.259 ± 0.035
0.186AsnCys: 0.186 ± 0.011
0.949AsnAsp: 0.949 ± 0.023
0.88AsnGlu: 0.88 ± 0.021
0.454AsnPhe: 0.454 ± 0.015
1.874AsnGly: 1.874 ± 0.037
0.369AsnHis: 0.369 ± 0.014
0.656AsnIle: 0.656 ± 0.019
0.36AsnLys: 0.36 ± 0.014
1.704AsnLeu: 1.704 ± 0.034
0.308AsnMet: 0.308 ± 0.012
0.354AsnAsn: 0.354 ± 0.016
1.359AsnPro: 1.359 ± 0.027
0.469AsnGln: 0.469 ± 0.016
1.324AsnArg: 1.324 ± 0.026
0.752AsnSer: 0.752 ± 0.024
0.967AsnThr: 0.967 ± 0.023
1.495AsnVal: 1.495 ± 0.032
0.271AsnTrp: 0.271 ± 0.014
0.388AsnTyr: 0.388 ± 0.014
0.0AsnXaa: 0.0 ± 0.0
Pro
8.69ProAla: 8.69 ± 0.086
0.368ProCys: 0.368 ± 0.012
4.764ProAsp: 4.764 ± 0.055
4.549ProGlu: 4.549 ± 0.053
1.613ProPhe: 1.613 ± 0.026
7.317ProGly: 7.317 ± 0.062
1.282ProHis: 1.282 ± 0.024
1.615ProIle: 1.615 ± 0.028
1.201ProLys: 1.201 ± 0.031
5.191ProLeu: 5.191 ± 0.044
1.181ProMet: 1.181 ± 0.023
0.978ProAsn: 0.978 ± 0.023
4.354ProPro: 4.354 ± 0.065
1.466ProGln: 1.466 ± 0.03
4.28ProArg: 4.28 ± 0.053
3.128ProSer: 3.128 ± 0.044
2.623ProThr: 2.623 ± 0.037
5.434ProVal: 5.434 ± 0.059
0.908ProTrp: 0.908 ± 0.021
1.311ProTyr: 1.311 ± 0.024
0.0ProXaa: 0.0 ± 0.0
Gln
3.383GlnAla: 3.383 ± 0.048
0.175GlnCys: 0.175 ± 0.011
1.264GlnAsp: 1.264 ± 0.029
1.404GlnGlu: 1.404 ± 0.029
0.649GlnPhe: 0.649 ± 0.017
2.087GlnGly: 2.087 ± 0.031
0.534GlnHis: 0.534 ± 0.018
1.143GlnIle: 1.143 ± 0.024
0.552GlnLys: 0.552 ± 0.018
2.389GlnLeu: 2.389 ± 0.036
0.504GlnMet: 0.504 ± 0.017
0.504GlnAsn: 0.504 ± 0.018
1.46GlnPro: 1.46 ± 0.036
0.928GlnGln: 0.928 ± 0.029
2.298GlnArg: 2.298 ± 0.039
1.08GlnSer: 1.08 ± 0.026
1.21GlnThr: 1.21 ± 0.027
2.33GlnVal: 2.33 ± 0.037
0.38GlnTrp: 0.38 ± 0.016
0.496GlnTyr: 0.496 ± 0.018
0.0GlnXaa: 0.0 ± 0.0
Arg
10.442ArgAla: 10.442 ± 0.099
0.626ArgCys: 0.626 ± 0.02
5.205ArgAsp: 5.205 ± 0.055
5.16ArgGlu: 5.16 ± 0.058
2.557ArgPhe: 2.557 ± 0.038
6.378ArgGly: 6.378 ± 0.058
2.19ArgHis: 2.19 ± 0.036
3.382ArgIle: 3.382 ± 0.039
1.725ArgLys: 1.725 ± 0.034
9.682ArgLeu: 9.682 ± 0.086
1.974ArgMet: 1.974 ± 0.032
1.457ArgAsn: 1.457 ± 0.028
5.577ArgPro: 5.577 ± 0.065
2.194ArgGln: 2.194 ± 0.038
8.878ArgArg: 8.878 ± 0.097
3.95ArgSer: 3.95 ± 0.047
5.042ArgThr: 5.042 ± 0.056
6.452ArgVal: 6.452 ± 0.054
1.416ArgTrp: 1.416 ± 0.022
1.927ArgTyr: 1.927 ± 0.035
0.0ArgXaa: 0.0 ± 0.0
Ser
5.908SerAla: 5.908 ± 0.058
0.374SerCys: 0.374 ± 0.014
2.424SerAsp: 2.424 ± 0.039
2.304SerGlu: 2.304 ± 0.034
1.453SerPhe: 1.453 ± 0.026
5.533SerGly: 5.533 ± 0.06
0.895SerHis: 0.895 ± 0.022
1.536SerIle: 1.536 ± 0.03
0.953SerLys: 0.953 ± 0.024
4.446SerLeu: 4.446 ± 0.048
1.1SerMet: 1.1 ± 0.02
0.78SerAsn: 0.78 ± 0.02
3.075SerPro: 3.075 ± 0.045
1.05SerGln: 1.05 ± 0.025
3.705SerArg: 3.705 ± 0.049
2.388SerSer: 2.388 ± 0.047
2.494SerThr: 2.494 ± 0.036
3.737SerVal: 3.737 ± 0.044
0.801SerTrp: 0.801 ± 0.021
1.127SerTyr: 1.127 ± 0.027
0.0SerXaa: 0.0 ± 0.0
Thr
7.8ThrAla: 7.8 ± 0.066
0.449ThrCys: 0.449 ± 0.014
3.112ThrAsp: 3.112 ± 0.04
3.001ThrGlu: 3.001 ± 0.036
1.648ThrPhe: 1.648 ± 0.035
6.494ThrGly: 6.494 ± 0.065
0.985ThrHis: 0.985 ± 0.023
1.936ThrIle: 1.936 ± 0.035
1.047ThrLys: 1.047 ± 0.025
5.304ThrLeu: 5.304 ± 0.054
1.081ThrMet: 1.081 ± 0.022
0.864ThrAsn: 0.864 ± 0.02
3.633ThrPro: 3.633 ± 0.05
1.102ThrGln: 1.102 ± 0.028
4.066ThrArg: 4.066 ± 0.045
2.777ThrSer: 2.777 ± 0.041
3.088ThrThr: 3.088 ± 0.042
5.325ThrVal: 5.325 ± 0.061
0.898ThrTrp: 0.898 ± 0.023
1.166ThrTyr: 1.166 ± 0.034
0.0ThrXaa: 0.0 ± 0.0
Val
10.877ValAla: 10.877 ± 0.09
0.721ValCys: 0.721 ± 0.019
4.771ValAsp: 4.771 ± 0.054
4.853ValGlu: 4.853 ± 0.05
2.521ValPhe: 2.521 ± 0.04
6.262ValGly: 6.262 ± 0.061
1.963ValHis: 1.963 ± 0.034
3.148ValIle: 3.148 ± 0.041
1.667ValLys: 1.667 ± 0.032
9.598ValLeu: 9.598 ± 0.08
1.472ValMet: 1.472 ± 0.026
1.72ValAsn: 1.72 ± 0.034
5.604ValPro: 5.604 ± 0.06
2.108ValGln: 2.108 ± 0.029
7.493ValArg: 7.493 ± 0.065
4.049ValSer: 4.049 ± 0.049
5.448ValThr: 5.448 ± 0.063
7.842ValVal: 7.842 ± 0.069
1.09ValTrp: 1.09 ± 0.024
1.581ValTyr: 1.581 ± 0.03
0.0ValXaa: 0.0 ± 0.0
Trp
1.631TrpAla: 1.631 ± 0.029
0.155TrpCys: 0.155 ± 0.01
0.834TrpAsp: 0.834 ± 0.022
0.745TrpGlu: 0.745 ± 0.016
0.512TrpPhe: 0.512 ± 0.018
1.032TrpGly: 1.032 ± 0.024
0.354TrpHis: 0.354 ± 0.012
0.55TrpIle: 0.55 ± 0.017
0.337TrpLys: 0.337 ± 0.011
1.688TrpLeu: 1.688 ± 0.034
0.288TrpMet: 0.288 ± 0.011
0.38TrpAsn: 0.38 ± 0.016
0.83TrpPro: 0.83 ± 0.021
0.459TrpGln: 0.459 ± 0.015
1.501TrpArg: 1.501 ± 0.026
0.816TrpSer: 0.816 ± 0.02
1.017TrpThr: 1.017 ± 0.025
0.944TrpVal: 0.944 ± 0.022
0.341TrpTrp: 0.341 ± 0.014
0.32TrpTyr: 0.32 ± 0.013
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.556TyrAla: 2.556 ± 0.034
0.194TyrCys: 0.194 ± 0.01
1.408TyrAsp: 1.408 ± 0.038
1.278TyrGlu: 1.278 ± 0.025
0.645TyrPhe: 0.645 ± 0.017
2.199TyrGly: 2.199 ± 0.034
0.417TyrHis: 0.417 ± 0.014
0.561TyrIle: 0.561 ± 0.015
0.373TyrLys: 0.373 ± 0.015
2.123TyrLeu: 2.123 ± 0.03
0.312TyrMet: 0.312 ± 0.013
0.382TyrAsn: 0.382 ± 0.017
1.056TyrPro: 1.056 ± 0.023
0.53TyrGln: 0.53 ± 0.017
1.875TyrArg: 1.875 ± 0.036
0.914TyrSer: 0.914 ± 0.024
1.085TyrThr: 1.085 ± 0.027
1.645TyrVal: 1.645 ± 0.025
0.329TyrTrp: 0.329 ± 0.012
0.447TyrTyr: 0.447 ± 0.016
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 6472 proteins (2052183 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