Amino acid dipepetide frequency for Rhodococcus sp. SMB37

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
18.121AlaAla: 18.121 ± 0.132
0.918AlaCys: 0.918 ± 0.025
8.06AlaAsp: 8.06 ± 0.071
7.787AlaGlu: 7.787 ± 0.064
3.445AlaPhe: 3.445 ± 0.043
11.03AlaGly: 11.03 ± 0.092
2.649AlaHis: 2.649 ± 0.045
4.823AlaIle: 4.823 ± 0.054
2.572AlaLys: 2.572 ± 0.051
13.028AlaLeu: 13.028 ± 0.099
2.621AlaMet: 2.621 ± 0.039
2.074AlaAsn: 2.074 ± 0.035
6.013AlaPro: 6.013 ± 0.08
3.644AlaGln: 3.644 ± 0.056
8.537AlaArg: 8.537 ± 0.079
6.257AlaSer: 6.257 ± 0.065
7.354AlaThr: 7.354 ± 0.058
11.543AlaVal: 11.543 ± 0.097
1.563AlaTrp: 1.563 ± 0.028
2.225AlaTyr: 2.225 ± 0.039
0.0AlaXaa: 0.0 ± 0.0
Cys
1.0CysAla: 1.0 ± 0.026
0.094CysCys: 0.094 ± 0.007
0.488CysAsp: 0.488 ± 0.015
0.399CysGlu: 0.399 ± 0.015
0.227CysPhe: 0.227 ± 0.011
0.902CysGly: 0.902 ± 0.027
0.191CysHis: 0.191 ± 0.011
0.278CysIle: 0.278 ± 0.013
0.098CysLys: 0.098 ± 0.008
0.589CysLeu: 0.589 ± 0.019
0.117CysMet: 0.117 ± 0.008
0.149CysAsn: 0.149 ± 0.008
0.454CysPro: 0.454 ± 0.016
0.153CysGln: 0.153 ± 0.01
0.548CysArg: 0.548 ± 0.02
0.528CysSer: 0.528 ± 0.017
0.54CysThr: 0.54 ± 0.019
0.63CysVal: 0.63 ± 0.022
0.101CysTrp: 0.101 ± 0.008
0.142CysTyr: 0.142 ± 0.008
0.0CysXaa: 0.0 ± 0.0
Asp
8.01AspAla: 8.01 ± 0.064
0.389AspCys: 0.389 ± 0.016
4.689AspAsp: 4.689 ± 0.061
4.585AspGlu: 4.585 ± 0.058
1.747AspPhe: 1.747 ± 0.034
6.101AspGly: 6.101 ± 0.062
1.552AspHis: 1.552 ± 0.032
2.701AspIle: 2.701 ± 0.043
1.21AspLys: 1.21 ± 0.025
6.791AspLeu: 6.791 ± 0.074
0.974AspMet: 0.974 ± 0.024
1.197AspAsn: 1.197 ± 0.027
4.696AspPro: 4.696 ± 0.049
1.518AspGln: 1.518 ± 0.03
5.188AspArg: 5.188 ± 0.067
3.241AspSer: 3.241 ± 0.044
3.942AspThr: 3.942 ± 0.052
5.533AspVal: 5.533 ± 0.065
0.846AspTrp: 0.846 ± 0.02
1.303AspTyr: 1.303 ± 0.027
0.0AspXaa: 0.0 ± 0.0
Glu
6.243GluAla: 6.243 ± 0.058
0.401GluCys: 0.401 ± 0.016
2.668GluAsp: 2.668 ± 0.046
2.879GluGlu: 2.879 ± 0.047
1.991GluPhe: 1.991 ± 0.034
3.773GluGly: 3.773 ± 0.047
1.797GluHis: 1.797 ± 0.035
3.063GluIle: 3.063 ± 0.048
1.52GluLys: 1.52 ± 0.033
6.857GluLeu: 6.857 ± 0.066
1.162GluMet: 1.162 ± 0.025
1.393GluAsn: 1.393 ± 0.029
3.198GluPro: 3.198 ± 0.048
2.389GluGln: 2.389 ± 0.044
4.887GluArg: 4.887 ± 0.053
3.357GluSer: 3.357 ± 0.045
3.054GluThr: 3.054 ± 0.048
4.74GluVal: 4.74 ± 0.058
0.918GluTrp: 0.918 ± 0.022
1.292GluTyr: 1.292 ± 0.026
0.0GluXaa: 0.0 ± 0.0
Phe
3.876PheAla: 3.876 ± 0.046
0.281PheCys: 0.281 ± 0.013
2.656PheAsp: 2.656 ± 0.051
1.821PheGlu: 1.821 ± 0.034
0.946PhePhe: 0.946 ± 0.029
3.417PheGly: 3.417 ± 0.054
0.659PheHis: 0.659 ± 0.02
0.934PheIle: 0.934 ± 0.024
0.436PheLys: 0.436 ± 0.017
2.591PheLeu: 2.591 ± 0.04
0.48PheMet: 0.48 ± 0.017
0.558PheAsn: 0.558 ± 0.017
1.412PhePro: 1.412 ± 0.026
0.633PheGln: 0.633 ± 0.023
1.8PheArg: 1.8 ± 0.034
1.631PheSer: 1.631 ± 0.029
2.106PheThr: 2.106 ± 0.03
2.872PheVal: 2.872 ± 0.039
0.394PheTrp: 0.394 ± 0.015
0.64PheTyr: 0.64 ± 0.02
0.0PheXaa: 0.0 ± 0.0
Gly
9.912GlyAla: 9.912 ± 0.081
0.729GlyCys: 0.729 ± 0.024
5.132GlyAsp: 5.132 ± 0.054
4.691GlyGlu: 4.691 ± 0.056
3.08GlyPhe: 3.08 ± 0.048
7.631GlyGly: 7.631 ± 0.082
2.051GlyHis: 2.051 ± 0.033
4.359GlyIle: 4.359 ± 0.051
2.251GlyLys: 2.251 ± 0.039
8.428GlyLeu: 8.428 ± 0.08
2.098GlyMet: 2.098 ± 0.036
1.876GlyAsn: 1.876 ± 0.031
4.232GlyPro: 4.232 ± 0.048
2.421GlyGln: 2.421 ± 0.04
6.67GlyArg: 6.67 ± 0.066
5.549GlySer: 5.549 ± 0.057
5.778GlyThr: 5.778 ± 0.057
7.494GlyVal: 7.494 ± 0.066
1.527GlyTrp: 1.527 ± 0.03
2.255GlyTyr: 2.255 ± 0.04
0.0GlyXaa: 0.0 ± 0.0
His
2.53HisAla: 2.53 ± 0.04
0.2HisCys: 0.2 ± 0.011
1.493HisAsp: 1.493 ± 0.03
1.24HisGlu: 1.24 ± 0.029
0.691HisPhe: 0.691 ± 0.02
2.173HisGly: 2.173 ± 0.04
0.713HisHis: 0.713 ± 0.022
0.873HisIle: 0.873 ± 0.022
0.326HisLys: 0.326 ± 0.013
2.288HisLeu: 2.288 ± 0.036
0.405HisMet: 0.405 ± 0.015
0.443HisAsn: 0.443 ± 0.015
1.654HisPro: 1.654 ± 0.032
0.55HisGln: 0.55 ± 0.017
2.068HisArg: 2.068 ± 0.035
1.24HisSer: 1.24 ± 0.025
1.37HisThr: 1.37 ± 0.029
1.743HisVal: 1.743 ± 0.033
0.336HisTrp: 0.336 ± 0.013
0.51HisTyr: 0.51 ± 0.018
0.0HisXaa: 0.0 ± 0.0
Ile
6.309IleAla: 6.309 ± 0.058
0.316IleCys: 0.316 ± 0.014
3.686IleAsp: 3.686 ± 0.041
2.911IleGlu: 2.911 ± 0.038
0.952IlePhe: 0.952 ± 0.024
4.454IleGly: 4.454 ± 0.05
0.786IleHis: 0.786 ± 0.02
1.418IleIle: 1.418 ± 0.033
0.741IleLys: 0.741 ± 0.019
3.441IleLeu: 3.441 ± 0.047
0.633IleMet: 0.633 ± 0.019
0.895IleAsn: 0.895 ± 0.021
2.423IlePro: 2.423 ± 0.035
0.803IleGln: 0.803 ± 0.022
2.82IleArg: 2.82 ± 0.042
2.28IleSer: 2.28 ± 0.033
2.835IleThr: 2.835 ± 0.044
4.138IleVal: 4.138 ± 0.056
0.426IleTrp: 0.426 ± 0.015
0.705IleTyr: 0.705 ± 0.021
0.0IleXaa: 0.0 ± 0.0
Lys
2.41LysAla: 2.41 ± 0.044
0.119LysCys: 0.119 ± 0.009
1.08LysAsp: 1.08 ± 0.027
0.972LysGlu: 0.972 ± 0.026
0.643LysPhe: 0.643 ± 0.018
1.468LysGly: 1.468 ± 0.032
0.457LysHis: 0.457 ± 0.015
1.062LysIle: 1.062 ± 0.028
0.721LysLys: 0.721 ± 0.027
1.916LysLeu: 1.916 ± 0.037
0.438LysMet: 0.438 ± 0.016
0.547LysAsn: 0.547 ± 0.018
1.161LysPro: 1.161 ± 0.027
0.653LysGln: 0.653 ± 0.02
1.366LysArg: 1.366 ± 0.03
1.189LysSer: 1.189 ± 0.028
1.261LysThr: 1.261 ± 0.025
1.855LysVal: 1.855 ± 0.034
0.307LysTrp: 0.307 ± 0.011
0.514LysTyr: 0.514 ± 0.017
0.0LysXaa: 0.0 ± 0.0
Leu
13.324LeuAla: 13.324 ± 0.098
0.773LeuCys: 0.773 ± 0.019
7.588LeuAsp: 7.588 ± 0.094
5.231LeuGlu: 5.231 ± 0.057
2.753LeuPhe: 2.753 ± 0.04
8.998LeuGly: 8.998 ± 0.071
2.187LeuHis: 2.187 ± 0.033
3.926LeuIle: 3.926 ± 0.053
1.47LeuLys: 1.47 ± 0.03
9.55LeuLeu: 9.55 ± 0.101
1.679LeuMet: 1.679 ± 0.034
1.759LeuAsn: 1.759 ± 0.035
5.68LeuPro: 5.68 ± 0.061
2.307LeuGln: 2.307 ± 0.036
7.519LeuArg: 7.519 ± 0.079
5.735LeuSer: 5.735 ± 0.057
6.503LeuThr: 6.503 ± 0.073
8.813LeuVal: 8.813 ± 0.076
1.227LeuTrp: 1.227 ± 0.029
1.631LeuTyr: 1.631 ± 0.031
0.0LeuXaa: 0.0 ± 0.0
Met
2.17MetAla: 2.17 ± 0.036
0.194MetCys: 0.194 ± 0.01
0.864MetAsp: 0.864 ± 0.022
0.697MetGlu: 0.697 ± 0.022
0.682MetPhe: 0.682 ± 0.021
1.433MetGly: 1.433 ± 0.032
0.414MetHis: 0.414 ± 0.017
0.962MetIle: 0.962 ± 0.026
0.469MetLys: 0.469 ± 0.016
2.065MetLeu: 2.065 ± 0.033
0.393MetMet: 0.393 ± 0.016
0.518MetAsn: 0.518 ± 0.017
1.148MetPro: 1.148 ± 0.023
0.572MetGln: 0.572 ± 0.019
1.521MetArg: 1.521 ± 0.03
1.657MetSer: 1.657 ± 0.035
1.811MetThr: 1.811 ± 0.033
1.582MetVal: 1.582 ± 0.033
0.282MetTrp: 0.282 ± 0.013
0.368MetTyr: 0.368 ± 0.015
0.0MetXaa: 0.0 ± 0.0
Asn
2.392AsnAla: 2.392 ± 0.035
0.161AsnCys: 0.161 ± 0.009
1.113AsnAsp: 1.113 ± 0.025
0.993AsnGlu: 0.993 ± 0.025
0.606AsnPhe: 0.606 ± 0.02
1.842AsnGly: 1.842 ± 0.033
0.419AsnHis: 0.419 ± 0.013
0.936AsnIle: 0.936 ± 0.021
0.422AsnLys: 0.422 ± 0.016
1.974AsnLeu: 1.974 ± 0.031
0.402AsnMet: 0.402 ± 0.014
0.493AsnAsn: 0.493 ± 0.017
1.623AsnPro: 1.623 ± 0.029
0.504AsnGln: 0.504 ± 0.018
1.459AsnArg: 1.459 ± 0.03
1.148AsnSer: 1.148 ± 0.024
1.356AsnThr: 1.356 ± 0.032
1.584AsnVal: 1.584 ± 0.032
0.329AsnTrp: 0.329 ± 0.013
0.483AsnTyr: 0.483 ± 0.018
0.0AsnXaa: 0.0 ± 0.0
Pro
6.697ProAla: 6.697 ± 0.078
0.286ProCys: 0.286 ± 0.013
4.61ProAsp: 4.61 ± 0.055
4.101ProGlu: 4.101 ± 0.053
1.598ProPhe: 1.598 ± 0.03
5.253ProGly: 5.253 ± 0.059
1.294ProHis: 1.294 ± 0.027
2.178ProIle: 2.178 ± 0.035
1.162ProLys: 1.162 ± 0.029
4.816ProLeu: 4.816 ± 0.061
1.089ProMet: 1.089 ± 0.027
1.113ProAsn: 1.113 ± 0.025
2.635ProPro: 2.635 ± 0.052
1.56ProGln: 1.56 ± 0.035
3.47ProArg: 3.47 ± 0.047
3.224ProSer: 3.224 ± 0.044
3.6ProThr: 3.6 ± 0.047
5.138ProVal: 5.138 ± 0.07
0.794ProTrp: 0.794 ± 0.022
1.081ProTyr: 1.081 ± 0.029
0.0ProXaa: 0.0 ± 0.0
Gln
3.025GlnAla: 3.025 ± 0.047
0.216GlnCys: 0.216 ± 0.01
1.228GlnAsp: 1.228 ± 0.026
1.227GlnGlu: 1.227 ± 0.027
0.899GlnPhe: 0.899 ± 0.022
1.876GlnGly: 1.876 ± 0.034
0.676GlnHis: 0.676 ± 0.02
1.424GlnIle: 1.424 ± 0.029
0.577GlnLys: 0.577 ± 0.021
3.054GlnLeu: 3.054 ± 0.043
0.596GlnMet: 0.596 ± 0.018
0.599GlnAsn: 0.599 ± 0.017
1.372GlnPro: 1.372 ± 0.029
1.184GlnGln: 1.184 ± 0.035
2.423GlnArg: 2.423 ± 0.04
1.417GlnSer: 1.417 ± 0.027
1.336GlnThr: 1.336 ± 0.027
2.524GlnVal: 2.524 ± 0.041
0.535GlnTrp: 0.535 ± 0.016
0.608GlnTyr: 0.608 ± 0.018
0.0GlnXaa: 0.0 ± 0.0
Arg
8.288ArgAla: 8.288 ± 0.072
0.58ArgCys: 0.58 ± 0.017
4.37ArgAsp: 4.37 ± 0.053
4.2ArgGlu: 4.2 ± 0.049
2.414ArgPhe: 2.414 ± 0.036
5.33ArgGly: 5.33 ± 0.049
1.777ArgHis: 1.777 ± 0.035
3.859ArgIle: 3.859 ± 0.046
1.675ArgLys: 1.675 ± 0.034
7.061ArgLeu: 7.061 ± 0.074
1.904ArgMet: 1.904 ± 0.027
1.654ArgAsn: 1.654 ± 0.035
3.884ArgPro: 3.884 ± 0.05
1.905ArgGln: 1.905 ± 0.03
6.435ArgArg: 6.435 ± 0.072
4.427ArgSer: 4.427 ± 0.049
5.003ArgThr: 5.003 ± 0.058
5.794ArgVal: 5.794 ± 0.065
1.328ArgTrp: 1.328 ± 0.027
1.828ArgTyr: 1.828 ± 0.034
0.0ArgXaa: 0.0 ± 0.0
Ser
6.842SerAla: 6.842 ± 0.063
0.41SerCys: 0.41 ± 0.014
3.769SerAsp: 3.769 ± 0.041
3.102SerGlu: 3.102 ± 0.043
1.724SerPhe: 1.724 ± 0.029
6.069SerGly: 6.069 ± 0.059
1.088SerHis: 1.088 ± 0.022
2.476SerIle: 2.476 ± 0.039
1.174SerLys: 1.174 ± 0.028
5.153SerLeu: 5.153 ± 0.058
1.447SerMet: 1.447 ± 0.023
1.18SerAsn: 1.18 ± 0.029
3.136SerPro: 3.136 ± 0.038
1.348SerGln: 1.348 ± 0.032
3.801SerArg: 3.801 ± 0.045
3.493SerSer: 3.493 ± 0.051
3.865SerThr: 3.865 ± 0.05
4.958SerVal: 4.958 ± 0.055
0.899SerTrp: 0.899 ± 0.022
1.201SerTyr: 1.201 ± 0.029
0.0SerXaa: 0.0 ± 0.0
Thr
7.873ThrAla: 7.873 ± 0.069
0.419ThrCys: 0.419 ± 0.018
4.339ThrAsp: 4.339 ± 0.055
3.662ThrGlu: 3.662 ± 0.042
1.872ThrPhe: 1.872 ± 0.032
6.166ThrGly: 6.166 ± 0.063
1.318ThrHis: 1.318 ± 0.026
2.624ThrIle: 2.624 ± 0.035
1.134ThrLys: 1.134 ± 0.03
5.939ThrLeu: 5.939 ± 0.061
1.192ThrMet: 1.192 ± 0.028
1.159ThrAsn: 1.159 ± 0.031
3.971ThrPro: 3.971 ± 0.05
1.455ThrGln: 1.455 ± 0.03
4.103ThrArg: 4.103 ± 0.047
3.615ThrSer: 3.615 ± 0.045
4.302ThrThr: 4.302 ± 0.063
6.498ThrVal: 6.498 ± 0.064
0.901ThrTrp: 0.901 ± 0.022
1.332ThrTyr: 1.332 ± 0.026
0.0ThrXaa: 0.0 ± 0.0
Val
11.46ValAla: 11.46 ± 0.096
0.802ValCys: 0.802 ± 0.02
6.242ValAsp: 6.242 ± 0.058
5.239ValGlu: 5.239 ± 0.058
2.672ValPhe: 2.672 ± 0.038
7.243ValGly: 7.243 ± 0.064
2.042ValHis: 2.042 ± 0.033
3.687ValIle: 3.687 ± 0.051
1.468ValLys: 1.468 ± 0.031
9.364ValLeu: 9.364 ± 0.088
1.52ValMet: 1.52 ± 0.031
1.757ValAsn: 1.757 ± 0.032
5.114ValPro: 5.114 ± 0.061
2.121ValGln: 2.121 ± 0.033
6.177ValArg: 6.177 ± 0.052
4.942ValSer: 4.942 ± 0.06
5.712ValThr: 5.712 ± 0.053
9.076ValVal: 9.076 ± 0.091
1.106ValTrp: 1.106 ± 0.029
1.521ValTyr: 1.521 ± 0.029
0.0ValXaa: 0.0 ± 0.0
Trp
1.516TrpAla: 1.516 ± 0.028
0.154TrpCys: 0.154 ± 0.009
0.774TrpAsp: 0.774 ± 0.019
0.708TrpGlu: 0.708 ± 0.021
0.529TrpPhe: 0.529 ± 0.018
1.004TrpGly: 1.004 ± 0.024
0.364TrpHis: 0.364 ± 0.014
0.728TrpIle: 0.728 ± 0.02
0.345TrpLys: 0.345 ± 0.012
1.561TrpLeu: 1.561 ± 0.032
0.338TrpMet: 0.338 ± 0.012
0.442TrpAsn: 0.442 ± 0.017
0.702TrpPro: 0.702 ± 0.019
0.504TrpGln: 0.504 ± 0.015
1.126TrpArg: 1.126 ± 0.026
1.008TrpSer: 1.008 ± 0.024
0.943TrpThr: 0.943 ± 0.023
1.118TrpVal: 1.118 ± 0.024
0.332TrpTrp: 0.332 ± 0.014
0.302TrpTyr: 0.302 ± 0.014
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.266TyrAla: 2.266 ± 0.039
0.188TyrCys: 0.188 ± 0.009
1.366TyrAsp: 1.366 ± 0.029
1.133TyrGlu: 1.133 ± 0.03
0.672TyrPhe: 0.672 ± 0.018
2.002TyrGly: 2.002 ± 0.032
0.413TyrHis: 0.413 ± 0.015
0.661TyrIle: 0.661 ± 0.018
0.368TyrLys: 0.368 ± 0.013
2.189TyrLeu: 2.189 ± 0.035
0.311TyrMet: 0.311 ± 0.014
0.435TyrAsn: 0.435 ± 0.016
1.192TyrPro: 1.192 ± 0.029
0.569TyrGln: 0.569 ± 0.017
1.799TyrArg: 1.799 ± 0.03
1.198TyrSer: 1.198 ± 0.027
1.201TyrThr: 1.201 ± 0.027
1.629TyrVal: 1.629 ± 0.03
0.346TyrTrp: 0.346 ± 0.013
0.433TyrTyr: 0.433 ± 0.018
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 5840 proteins (1883713 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