Amino acid dipepetide frequency for Pseudomonas sp. HLS-6

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
12.713AlaAla: 12.713 ± 0.134
1.3AlaCys: 1.3 ± 0.029
5.721AlaAsp: 5.721 ± 0.072
7.055AlaGlu: 7.055 ± 0.082
3.869AlaPhe: 3.869 ± 0.055
8.66AlaGly: 8.66 ± 0.085
2.275AlaHis: 2.275 ± 0.039
5.191AlaIle: 5.191 ± 0.067
3.912AlaLys: 3.912 ± 0.063
14.101AlaLeu: 14.101 ± 0.125
2.945AlaMet: 2.945 ± 0.05
3.161AlaAsn: 3.161 ± 0.049
4.704AlaPro: 4.704 ± 0.067
5.47AlaGln: 5.47 ± 0.077
7.042AlaArg: 7.042 ± 0.07
6.315AlaSer: 6.315 ± 0.07
4.973AlaThr: 4.973 ± 0.09
7.627AlaVal: 7.627 ± 0.1
1.631AlaTrp: 1.631 ± 0.036
2.558AlaTyr: 2.558 ± 0.044
0.0AlaXaa: 0.0 ± 0.0
Cys
1.135CysAla: 1.135 ± 0.032
0.153CysCys: 0.153 ± 0.011
0.578CysAsp: 0.578 ± 0.019
0.588CysGlu: 0.588 ± 0.019
0.359CysPhe: 0.359 ± 0.017
0.949CysGly: 0.949 ± 0.027
0.28CysHis: 0.28 ± 0.013
0.449CysIle: 0.449 ± 0.018
0.3CysLys: 0.3 ± 0.015
1.151CysLeu: 1.151 ± 0.03
0.238CysMet: 0.238 ± 0.012
0.292CysAsn: 0.292 ± 0.013
0.502CysPro: 0.502 ± 0.017
0.434CysGln: 0.434 ± 0.016
0.662CysArg: 0.662 ± 0.021
0.652CysSer: 0.652 ± 0.023
0.504CysThr: 0.504 ± 0.017
0.691CysVal: 0.691 ± 0.024
0.161CysTrp: 0.161 ± 0.013
0.271CysTyr: 0.271 ± 0.015
0.0CysXaa: 0.0 ± 0.0
Asp
5.71AspAla: 5.71 ± 0.075
0.549AspCys: 0.549 ± 0.019
2.777AspAsp: 2.777 ± 0.055
3.43AspGlu: 3.43 ± 0.053
1.981AspPhe: 1.981 ± 0.043
4.2AspGly: 4.2 ± 0.053
1.112AspHis: 1.112 ± 0.03
2.576AspIle: 2.576 ± 0.044
1.889AspLys: 1.889 ± 0.038
5.826AspLeu: 5.826 ± 0.07
1.188AspMet: 1.188 ± 0.029
1.591AspAsn: 1.591 ± 0.034
2.798AspPro: 2.798 ± 0.049
2.137AspGln: 2.137 ± 0.043
2.968AspArg: 2.968 ± 0.043
2.829AspSer: 2.829 ± 0.043
2.477AspThr: 2.477 ± 0.065
3.527AspVal: 3.527 ± 0.052
0.942AspTrp: 0.942 ± 0.027
1.759AspTyr: 1.759 ± 0.036
0.0AspXaa: 0.0 ± 0.0
Glu
6.619GluAla: 6.619 ± 0.065
0.465GluCys: 0.465 ± 0.02
2.566GluAsp: 2.566 ± 0.04
3.107GluGlu: 3.107 ± 0.055
1.758GluPhe: 1.758 ± 0.039
4.126GluGly: 4.126 ± 0.06
1.791GluHis: 1.791 ± 0.038
2.721GluIle: 2.721 ± 0.051
2.172GluLys: 2.172 ± 0.045
6.834GluLeu: 6.834 ± 0.082
1.317GluMet: 1.317 ± 0.03
1.502GluAsn: 1.502 ± 0.032
2.498GluPro: 2.498 ± 0.048
4.046GluGln: 4.046 ± 0.066
4.922GluArg: 4.922 ± 0.07
2.685GluSer: 2.685 ± 0.046
2.528GluThr: 2.528 ± 0.044
4.308GluVal: 4.308 ± 0.055
0.746GluTrp: 0.746 ± 0.022
1.251GluTyr: 1.251 ± 0.028
0.0GluXaa: 0.0 ± 0.0
Phe
3.937PheAla: 3.937 ± 0.049
0.466PheCys: 0.466 ± 0.019
2.377PheAsp: 2.377 ± 0.042
2.142PheGlu: 2.142 ± 0.041
1.479PhePhe: 1.479 ± 0.036
3.22PheGly: 3.22 ± 0.051
0.729PheHis: 0.729 ± 0.023
1.858PheIle: 1.858 ± 0.039
1.313PheLys: 1.313 ± 0.032
3.224PheLeu: 3.224 ± 0.057
0.831PheMet: 0.831 ± 0.024
1.457PheAsn: 1.457 ± 0.033
1.416PhePro: 1.416 ± 0.031
1.245PheGln: 1.245 ± 0.033
1.778PheArg: 1.778 ± 0.037
2.605PheSer: 2.605 ± 0.046
1.872PheThr: 1.872 ± 0.037
2.452PheVal: 2.452 ± 0.047
0.579PheTrp: 0.579 ± 0.021
1.034PheTyr: 1.034 ± 0.028
0.0PheXaa: 0.0 ± 0.0
Gly
7.294GlyAla: 7.294 ± 0.073
0.982GlyCys: 0.982 ± 0.027
3.869GlyAsp: 3.869 ± 0.058
4.449GlyGlu: 4.449 ± 0.062
3.355GlyPhe: 3.355 ± 0.053
5.843GlyGly: 5.843 ± 0.093
1.91GlyHis: 1.91 ± 0.037
4.137GlyIle: 4.137 ± 0.065
3.457GlyLys: 3.457 ± 0.055
9.263GlyLeu: 9.263 ± 0.098
2.193GlyMet: 2.193 ± 0.045
2.387GlyAsn: 2.387 ± 0.055
2.574GlyPro: 2.574 ± 0.041
3.656GlyGln: 3.656 ± 0.054
4.851GlyArg: 4.851 ± 0.063
4.559GlySer: 4.559 ± 0.057
3.822GlyThr: 3.822 ± 0.099
6.027GlyVal: 6.027 ± 0.075
1.343GlyTrp: 1.343 ± 0.031
2.42GlyTyr: 2.42 ± 0.04
0.0GlyXaa: 0.0 ± 0.0
His
2.364HisAla: 2.364 ± 0.039
0.339HisCys: 0.339 ± 0.016
1.251HisAsp: 1.251 ± 0.03
1.272HisGlu: 1.272 ± 0.029
1.015HisPhe: 1.015 ± 0.027
1.977HisGly: 1.977 ± 0.044
0.619HisHis: 0.619 ± 0.023
0.993HisIle: 0.993 ± 0.028
0.682HisLys: 0.682 ± 0.021
2.678HisLeu: 2.678 ± 0.039
0.545HisMet: 0.545 ± 0.019
0.653HisAsn: 0.653 ± 0.02
1.407HisPro: 1.407 ± 0.032
0.976HisGln: 0.976 ± 0.026
1.33HisArg: 1.33 ± 0.028
1.297HisSer: 1.297 ± 0.03
1.019HisThr: 1.019 ± 0.027
1.433HisVal: 1.433 ± 0.035
0.478HisTrp: 0.478 ± 0.019
0.81HisTyr: 0.81 ± 0.022
0.0HisXaa: 0.0 ± 0.0
Ile
5.887IleAla: 5.887 ± 0.053
0.529IleCys: 0.529 ± 0.021
3.253IleAsp: 3.253 ± 0.045
3.38IleGlu: 3.38 ± 0.052
1.366IlePhe: 1.366 ± 0.032
4.45IleGly: 4.45 ± 0.066
0.977IleHis: 0.977 ± 0.027
2.063IleIle: 2.063 ± 0.043
1.78IleLys: 1.78 ± 0.041
4.061IleLeu: 4.061 ± 0.064
0.818IleMet: 0.818 ± 0.023
1.85IleAsn: 1.85 ± 0.036
2.171IlePro: 2.171 ± 0.037
1.612IleGln: 1.612 ± 0.033
2.799IleArg: 2.799 ± 0.045
2.994IleSer: 2.994 ± 0.047
2.594IleThr: 2.594 ± 0.045
3.202IleVal: 3.202 ± 0.057
0.512IleTrp: 0.512 ± 0.018
1.152IleTyr: 1.152 ± 0.03
0.0IleXaa: 0.0 ± 0.0
Lys
4.412LysAla: 4.412 ± 0.063
0.205LysCys: 0.205 ± 0.011
1.782LysAsp: 1.782 ± 0.039
1.703LysGlu: 1.703 ± 0.039
0.864LysPhe: 0.864 ± 0.024
2.723LysGly: 2.723 ± 0.05
0.848LysHis: 0.848 ± 0.024
1.592LysIle: 1.592 ± 0.038
1.321LysLys: 1.321 ± 0.041
3.719LysLeu: 3.719 ± 0.056
0.736LysMet: 0.736 ± 0.026
1.059LysAsn: 1.059 ± 0.028
2.074LysPro: 2.074 ± 0.044
1.614LysGln: 1.614 ± 0.036
2.555LysArg: 2.555 ± 0.045
1.753LysSer: 1.753 ± 0.038
1.87LysThr: 1.87 ± 0.037
2.892LysVal: 2.892 ± 0.048
0.358LysTrp: 0.358 ± 0.015
0.74LysTyr: 0.74 ± 0.025
0.0LysXaa: 0.0 ± 0.0
Leu
14.107LeuAla: 14.107 ± 0.128
1.261LeuCys: 1.261 ± 0.032
6.485LeuAsp: 6.485 ± 0.066
6.733LeuGlu: 6.733 ± 0.086
4.283LeuPhe: 4.283 ± 0.06
9.097LeuGly: 9.097 ± 0.08
2.494LeuHis: 2.494 ± 0.039
5.671LeuIle: 5.671 ± 0.069
4.487LeuLys: 4.487 ± 0.055
13.478LeuLeu: 13.478 ± 0.152
2.636LeuMet: 2.636 ± 0.047
3.827LeuAsn: 3.827 ± 0.051
6.189LeuPro: 6.189 ± 0.071
4.87LeuGln: 4.87 ± 0.064
7.313LeuArg: 7.313 ± 0.089
7.587LeuSer: 7.587 ± 0.094
5.716LeuThr: 5.716 ± 0.078
7.79LeuVal: 7.79 ± 0.084
1.42LeuTrp: 1.42 ± 0.036
2.621LeuTyr: 2.621 ± 0.045
0.0LeuXaa: 0.0 ± 0.0
Met
2.78MetAla: 2.78 ± 0.043
0.184MetCys: 0.184 ± 0.012
0.995MetAsp: 0.995 ± 0.028
0.926MetGlu: 0.926 ± 0.027
0.712MetPhe: 0.712 ± 0.025
1.707MetGly: 1.707 ± 0.039
0.52MetHis: 0.52 ± 0.018
1.15MetIle: 1.15 ± 0.03
0.886MetLys: 0.886 ± 0.026
2.744MetLeu: 2.744 ± 0.046
0.508MetMet: 0.508 ± 0.021
0.872MetAsn: 0.872 ± 0.025
1.299MetPro: 1.299 ± 0.03
1.029MetGln: 1.029 ± 0.028
1.551MetArg: 1.551 ± 0.033
1.767MetSer: 1.767 ± 0.033
1.437MetThr: 1.437 ± 0.032
1.612MetVal: 1.612 ± 0.034
0.187MetTrp: 0.187 ± 0.011
0.385MetTyr: 0.385 ± 0.015
0.0MetXaa: 0.0 ± 0.0
Asn
3.319AsnAla: 3.319 ± 0.053
0.305AsnCys: 0.305 ± 0.014
1.707AsnAsp: 1.707 ± 0.039
1.605AsnGlu: 1.605 ± 0.036
1.06AsnPhe: 1.06 ± 0.033
2.617AsnGly: 2.617 ± 0.05
0.643AsnHis: 0.643 ± 0.021
1.439AsnIle: 1.439 ± 0.036
0.976AsnLys: 0.976 ± 0.026
3.512AsnLeu: 3.512 ± 0.054
0.603AsnMet: 0.603 ± 0.02
0.998AsnAsn: 0.998 ± 0.029
1.952AsnPro: 1.952 ± 0.039
1.348AsnGln: 1.348 ± 0.033
1.933AsnArg: 1.933 ± 0.044
1.657AsnSer: 1.657 ± 0.038
1.606AsnThr: 1.606 ± 0.039
2.036AsnVal: 2.036 ± 0.096
0.489AsnTrp: 0.489 ± 0.019
0.824AsnTyr: 0.824 ± 0.035
0.0AsnXaa: 0.0 ± 0.0
Pro
5.53ProAla: 5.53 ± 0.073
0.417ProCys: 0.417 ± 0.016
2.668ProAsp: 2.668 ± 0.043
3.293ProGlu: 3.293 ± 0.057
1.724ProPhe: 1.724 ± 0.033
3.816ProGly: 3.816 ± 0.056
1.087ProHis: 1.087 ± 0.027
2.003ProIle: 2.003 ± 0.035
1.62ProLys: 1.62 ± 0.036
5.727ProLeu: 5.727 ± 0.068
1.146ProMet: 1.146 ± 0.031
1.404ProAsn: 1.404 ± 0.039
1.815ProPro: 1.815 ± 0.042
2.252ProGln: 2.252 ± 0.047
2.546ProArg: 2.546 ± 0.046
2.627ProSer: 2.627 ± 0.048
2.192ProThr: 2.192 ± 0.038
3.882ProVal: 3.882 ± 0.057
0.741ProTrp: 0.741 ± 0.024
1.2ProTyr: 1.2 ± 0.03
0.0ProXaa: 0.0 ± 0.0
Gln
6.186GlnAla: 6.186 ± 0.087
0.339GlnCys: 0.339 ± 0.015
1.798GlnAsp: 1.798 ± 0.035
1.967GlnGlu: 1.967 ± 0.04
1.363GlnPhe: 1.363 ± 0.028
3.492GlnGly: 3.492 ± 0.052
1.242GlnHis: 1.242 ± 0.032
2.112GlnIle: 2.112 ± 0.035
1.251GlnLys: 1.251 ± 0.034
5.699GlnLeu: 5.699 ± 0.082
1.111GlnMet: 1.111 ± 0.028
1.065GlnAsn: 1.065 ± 0.027
2.441GlnPro: 2.441 ± 0.044
2.893GlnGln: 2.893 ± 0.068
3.869GlnArg: 3.869 ± 0.059
2.277GlnSer: 2.277 ± 0.044
2.003GlnThr: 2.003 ± 0.04
3.775GlnVal: 3.775 ± 0.058
0.744GlnTrp: 0.744 ± 0.025
0.985GlnTyr: 0.985 ± 0.028
0.0GlnXaa: 0.0 ± 0.0
Arg
6.086ArgAla: 6.086 ± 0.074
0.615ArgCys: 0.615 ± 0.022
3.444ArgAsp: 3.444 ± 0.051
4.251ArgGlu: 4.251 ± 0.068
2.682ArgPhe: 2.682 ± 0.046
4.006ArgGly: 4.006 ± 0.056
1.705ArgHis: 1.705 ± 0.031
3.299ArgIle: 3.299 ± 0.051
2.095ArgLys: 2.095 ± 0.043
8.405ArgLeu: 8.405 ± 0.094
1.675ArgMet: 1.675 ± 0.035
1.999ArgAsn: 1.999 ± 0.039
2.71ArgPro: 2.71 ± 0.044
3.497ArgGln: 3.497 ± 0.053
4.28ArgArg: 4.28 ± 0.066
3.506ArgSer: 3.506 ± 0.041
2.733ArgThr: 2.733 ± 0.047
4.373ArgVal: 4.373 ± 0.065
1.033ArgTrp: 1.033 ± 0.028
2.068ArgTyr: 2.068 ± 0.039
0.0ArgXaa: 0.0 ± 0.0
Ser
6.293SerAla: 6.293 ± 0.064
0.488SerCys: 0.488 ± 0.018
2.868SerAsp: 2.868 ± 0.047
3.194SerGlu: 3.194 ± 0.052
2.149SerPhe: 2.149 ± 0.034
5.174SerGly: 5.174 ± 0.075
1.329SerHis: 1.329 ± 0.03
2.773SerIle: 2.773 ± 0.038
1.878SerLys: 1.878 ± 0.041
7.127SerLeu: 7.127 ± 0.078
1.378SerMet: 1.378 ± 0.032
1.825SerAsn: 1.825 ± 0.047
2.624SerPro: 2.624 ± 0.047
2.471SerGln: 2.471 ± 0.042
3.593SerArg: 3.593 ± 0.05
3.544SerSer: 3.544 ± 0.054
3.007SerThr: 3.007 ± 0.045
4.028SerVal: 4.028 ± 0.052
0.782SerTrp: 0.782 ± 0.023
1.435SerTyr: 1.435 ± 0.029
0.0SerXaa: 0.0 ± 0.0
Thr
5.244ThrAla: 5.244 ± 0.104
0.487ThrCys: 0.487 ± 0.021
2.342ThrAsp: 2.342 ± 0.058
2.484ThrGlu: 2.484 ± 0.044
1.829ThrPhe: 1.829 ± 0.049
4.14ThrGly: 4.14 ± 0.071
1.113ThrHis: 1.113 ± 0.026
1.943ThrIle: 1.943 ± 0.044
1.122ThrLys: 1.122 ± 0.03
6.784ThrLeu: 6.784 ± 0.073
0.803ThrMet: 0.803 ± 0.021
1.253ThrAsn: 1.253 ± 0.045
3.075ThrPro: 3.075 ± 0.05
2.026ThrGln: 2.026 ± 0.037
3.007ThrArg: 3.007 ± 0.046
2.617ThrSer: 2.617 ± 0.049
2.465ThrThr: 2.465 ± 0.095
3.66ThrVal: 3.66 ± 0.108
0.715ThrTrp: 0.715 ± 0.021
1.239ThrTyr: 1.239 ± 0.031
0.0ThrXaa: 0.0 ± 0.0
Val
7.793ValAla: 7.793 ± 0.074
0.795ValCys: 0.795 ± 0.022
3.886ValAsp: 3.886 ± 0.066
4.549ValGlu: 4.549 ± 0.056
2.605ValPhe: 2.605 ± 0.044
5.26ValGly: 5.26 ± 0.065
1.457ValHis: 1.457 ± 0.033
3.852ValIle: 3.852 ± 0.051
2.421ValLys: 2.421 ± 0.046
8.329ValLeu: 8.329 ± 0.086
1.73ValMet: 1.73 ± 0.036
2.245ValAsn: 2.245 ± 0.076
3.413ValPro: 3.413 ± 0.052
2.842ValGln: 2.842 ± 0.042
4.344ValArg: 4.344 ± 0.065
4.314ValSer: 4.314 ± 0.061
3.643ValThr: 3.643 ± 0.083
5.507ValVal: 5.507 ± 0.082
0.888ValTrp: 0.888 ± 0.028
1.628ValTyr: 1.628 ± 0.039
0.0ValXaa: 0.0 ± 0.0
Trp
1.24TrpAla: 1.24 ± 0.029
0.176TrpCys: 0.176 ± 0.011
0.6TrpAsp: 0.6 ± 0.02
0.624TrpGlu: 0.624 ± 0.023
0.57TrpPhe: 0.57 ± 0.02
0.896TrpGly: 0.896 ± 0.029
0.43TrpHis: 0.43 ± 0.016
0.639TrpIle: 0.639 ± 0.024
0.477TrpLys: 0.477 ± 0.017
2.261TrpLeu: 2.261 ± 0.042
0.367TrpMet: 0.367 ± 0.017
0.453TrpAsn: 0.453 ± 0.017
0.675TrpPro: 0.675 ± 0.022
0.949TrpGln: 0.949 ± 0.031
1.089TrpArg: 1.089 ± 0.029
0.815TrpSer: 0.815 ± 0.026
0.59TrpThr: 0.59 ± 0.02
1.017TrpVal: 1.017 ± 0.03
0.239TrpTrp: 0.239 ± 0.014
0.331TrpTyr: 0.331 ± 0.016
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.575TyrAla: 2.575 ± 0.043
0.294TyrCys: 0.294 ± 0.014
1.299TyrAsp: 1.299 ± 0.027
1.21TyrGlu: 1.21 ± 0.033
0.992TyrPhe: 0.992 ± 0.027
2.039TyrGly: 2.039 ± 0.042
0.578TyrHis: 0.578 ± 0.021
0.989TyrIle: 0.989 ± 0.025
0.786TyrLys: 0.786 ± 0.024
3.141TyrLeu: 3.141 ± 0.044
0.485TyrMet: 0.485 ± 0.019
0.738TyrAsn: 0.738 ± 0.024
1.352TyrPro: 1.352 ± 0.03
1.244TyrGln: 1.244 ± 0.028
2.031TyrArg: 2.031 ± 0.033
1.559TyrSer: 1.559 ± 0.035
1.294TyrThr: 1.294 ± 0.045
1.66TyrVal: 1.66 ± 0.035
0.448TyrTrp: 0.448 ± 0.02
0.719TyrTyr: 0.719 ± 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 4701 proteins (1526357 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