Amino acid dipepetide frequency for Rhizobium sp. ADMK78

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
14.331AlaAla: 14.331 ± 0.145
0.941AlaCys: 0.941 ± 0.029
6.542AlaAsp: 6.542 ± 0.08
7.66AlaGlu: 7.66 ± 0.094
4.543AlaPhe: 4.543 ± 0.064
9.518AlaGly: 9.518 ± 0.083
2.098AlaHis: 2.098 ± 0.05
6.813AlaIle: 6.813 ± 0.082
4.144AlaLys: 4.144 ± 0.072
12.311AlaLeu: 12.311 ± 0.114
3.525AlaMet: 3.525 ± 0.054
3.102AlaAsn: 3.102 ± 0.047
4.428AlaPro: 4.428 ± 0.074
3.455AlaGln: 3.455 ± 0.06
7.617AlaArg: 7.617 ± 0.074
6.653AlaSer: 6.653 ± 0.079
5.521AlaThr: 5.521 ± 0.061
8.137AlaVal: 8.137 ± 0.088
1.199AlaTrp: 1.199 ± 0.033
2.47AlaTyr: 2.47 ± 0.048
0.0AlaXaa: 0.0 ± 0.0
Cys
0.831CysAla: 0.831 ± 0.023
0.119CysCys: 0.119 ± 0.01
0.507CysAsp: 0.507 ± 0.02
0.478CysGlu: 0.478 ± 0.019
0.334CysPhe: 0.334 ± 0.018
0.944CysGly: 0.944 ± 0.032
0.259CysHis: 0.259 ± 0.013
0.382CysIle: 0.382 ± 0.017
0.185CysLys: 0.185 ± 0.012
0.823CysLeu: 0.823 ± 0.024
0.178CysMet: 0.178 ± 0.01
0.217CysAsn: 0.217 ± 0.014
0.401CysPro: 0.401 ± 0.017
0.254CysGln: 0.254 ± 0.014
0.611CysArg: 0.611 ± 0.023
0.484CysSer: 0.484 ± 0.019
0.364CysThr: 0.364 ± 0.017
0.565CysVal: 0.565 ± 0.021
0.101CysTrp: 0.101 ± 0.009
0.218CysTyr: 0.218 ± 0.013
0.0CysXaa: 0.0 ± 0.0
Asp
6.105AspAla: 6.105 ± 0.073
0.545AspCys: 0.545 ± 0.025
3.049AspAsp: 3.049 ± 0.075
3.68AspGlu: 3.68 ± 0.053
2.335AspPhe: 2.335 ± 0.049
5.081AspGly: 5.081 ± 0.087
1.382AspHis: 1.382 ± 0.038
3.373AspIle: 3.373 ± 0.055
1.891AspLys: 1.891 ± 0.049
6.037AspLeu: 6.037 ± 0.082
1.543AspMet: 1.543 ± 0.037
1.477AspAsn: 1.477 ± 0.041
3.293AspPro: 3.293 ± 0.056
2.028AspGln: 2.028 ± 0.043
4.355AspArg: 4.355 ± 0.075
2.223AspSer: 2.223 ± 0.045
2.483AspThr: 2.483 ± 0.048
4.078AspVal: 4.078 ± 0.058
0.956AspTrp: 0.956 ± 0.028
1.543AspTyr: 1.543 ± 0.04
0.0AspXaa: 0.0 ± 0.0
Glu
7.806GluAla: 7.806 ± 0.1
0.368GluCys: 0.368 ± 0.017
3.139GluAsp: 3.139 ± 0.057
3.721GluGlu: 3.721 ± 0.059
1.979GluPhe: 1.979 ± 0.039
4.5GluGly: 4.5 ± 0.065
1.191GluHis: 1.191 ± 0.036
4.034GluIle: 4.034 ± 0.064
2.764GluLys: 2.764 ± 0.052
5.62GluLeu: 5.62 ± 0.072
1.657GluMet: 1.657 ± 0.039
1.938GluAsn: 1.938 ± 0.035
2.71GluPro: 2.71 ± 0.056
2.282GluGln: 2.282 ± 0.051
4.838GluArg: 4.838 ± 0.075
2.374GluSer: 2.374 ± 0.046
3.858GluThr: 3.858 ± 0.059
4.073GluVal: 4.073 ± 0.055
0.668GluTrp: 0.668 ± 0.024
1.018GluTyr: 1.018 ± 0.025
0.0GluXaa: 0.0 ± 0.0
Phe
4.582PheAla: 4.582 ± 0.067
0.45PheCys: 0.45 ± 0.019
2.822PheAsp: 2.822 ± 0.052
2.311PheGlu: 2.311 ± 0.041
1.583PhePhe: 1.583 ± 0.041
3.729PheGly: 3.729 ± 0.062
0.806PheHis: 0.806 ± 0.024
2.055PheIle: 2.055 ± 0.041
1.186PheLys: 1.186 ± 0.031
3.653PheLeu: 3.653 ± 0.062
0.909PheMet: 0.909 ± 0.027
1.148PheAsn: 1.148 ± 0.034
1.609PhePro: 1.609 ± 0.04
1.146PheGln: 1.146 ± 0.032
2.271PheArg: 2.271 ± 0.05
2.5PheSer: 2.5 ± 0.046
1.931PheThr: 1.931 ± 0.043
2.917PheVal: 2.917 ± 0.056
0.582PheTrp: 0.582 ± 0.021
0.982PheTyr: 0.982 ± 0.028
0.0PheXaa: 0.0 ± 0.0
Gly
8.061GlyAla: 8.061 ± 0.081
0.797GlyCys: 0.797 ± 0.025
4.275GlyAsp: 4.275 ± 0.073
4.926GlyGlu: 4.926 ± 0.068
3.761GlyPhe: 3.761 ± 0.061
6.533GlyGly: 6.533 ± 0.093
1.97GlyHis: 1.97 ± 0.039
4.984GlyIle: 4.984 ± 0.07
3.534GlyLys: 3.534 ± 0.055
8.714GlyLeu: 8.714 ± 0.091
2.37GlyMet: 2.37 ± 0.045
2.286GlyAsn: 2.286 ± 0.061
3.147GlyPro: 3.147 ± 0.052
2.947GlyGln: 2.947 ± 0.053
5.517GlyArg: 5.517 ± 0.068
4.823GlySer: 4.823 ± 0.072
4.306GlyThr: 4.306 ± 0.063
5.721GlyVal: 5.721 ± 0.072
1.193GlyTrp: 1.193 ± 0.033
2.334GlyTyr: 2.334 ± 0.042
0.0GlyXaa: 0.0 ± 0.0
His
2.202HisAla: 2.202 ± 0.045
0.239HisCys: 0.239 ± 0.014
1.267HisAsp: 1.267 ± 0.037
1.086HisGlu: 1.086 ± 0.028
0.927HisPhe: 0.927 ± 0.032
1.975HisGly: 1.975 ± 0.043
0.639HisHis: 0.639 ± 0.027
1.023HisIle: 1.023 ± 0.033
0.555HisLys: 0.555 ± 0.02
2.158HisLeu: 2.158 ± 0.049
0.556HisMet: 0.556 ± 0.021
0.489HisAsn: 0.489 ± 0.02
1.292HisPro: 1.292 ± 0.034
0.721HisGln: 0.721 ± 0.022
1.42HisArg: 1.42 ± 0.033
1.033HisSer: 1.033 ± 0.027
0.795HisThr: 0.795 ± 0.026
1.581HisVal: 1.581 ± 0.039
0.303HisTrp: 0.303 ± 0.015
0.548HisTyr: 0.548 ± 0.02
0.0HisXaa: 0.0 ± 0.0
Ile
7.63IleAla: 7.63 ± 0.083
0.574IleCys: 0.574 ± 0.022
3.871IleAsp: 3.871 ± 0.05
3.978IleGlu: 3.978 ± 0.055
2.004IlePhe: 2.004 ± 0.041
5.38IleGly: 5.38 ± 0.073
0.98IleHis: 0.98 ± 0.03
2.941IleIle: 2.941 ± 0.058
1.699IleLys: 1.699 ± 0.038
5.176IleLeu: 5.176 ± 0.07
1.241IleMet: 1.241 ± 0.03
1.758IleAsn: 1.758 ± 0.04
2.572IlePro: 2.572 ± 0.047
1.328IleGln: 1.328 ± 0.03
3.698IleArg: 3.698 ± 0.051
3.545IleSer: 3.545 ± 0.054
2.915IleThr: 2.915 ± 0.053
4.405IleVal: 4.405 ± 0.058
0.647IleTrp: 0.647 ± 0.023
1.256IleTyr: 1.256 ± 0.031
0.0IleXaa: 0.0 ± 0.0
Lys
4.737LysAla: 4.737 ± 0.074
0.158LysCys: 0.158 ± 0.01
2.022LysAsp: 2.022 ± 0.046
1.859LysGlu: 1.859 ± 0.038
0.907LysPhe: 0.907 ± 0.029
2.955LysGly: 2.955 ± 0.054
0.647LysHis: 0.647 ± 0.021
2.091LysIle: 2.091 ± 0.04
1.467LysLys: 1.467 ± 0.037
3.588LysLeu: 3.588 ± 0.053
0.915LysMet: 0.915 ± 0.029
1.034LysAsn: 1.034 ± 0.028
2.243LysPro: 2.243 ± 0.045
1.103LysGln: 1.103 ± 0.032
2.633LysArg: 2.633 ± 0.05
2.13LysSer: 2.13 ± 0.039
2.321LysThr: 2.321 ± 0.048
2.673LysVal: 2.673 ± 0.047
0.361LysTrp: 0.361 ± 0.019
0.596LysTyr: 0.596 ± 0.022
0.0LysXaa: 0.0 ± 0.0
Leu
12.527LeuAla: 12.527 ± 0.129
0.851LeuCys: 0.851 ± 0.028
5.912LeuAsp: 5.912 ± 0.079
5.686LeuGlu: 5.686 ± 0.077
3.757LeuPhe: 3.757 ± 0.066
7.813LeuGly: 7.813 ± 0.102
1.81LeuHis: 1.81 ± 0.042
5.489LeuIle: 5.489 ± 0.077
4.222LeuLys: 4.222 ± 0.059
9.354LeuLeu: 9.354 ± 0.126
2.707LeuMet: 2.707 ± 0.046
2.753LeuAsn: 2.753 ± 0.047
5.253LeuPro: 5.253 ± 0.071
2.92LeuGln: 2.92 ± 0.053
6.075LeuArg: 6.075 ± 0.085
7.22LeuSer: 7.22 ± 0.086
5.759LeuThr: 5.759 ± 0.063
7.414LeuVal: 7.414 ± 0.089
1.093LeuTrp: 1.093 ± 0.033
2.142LeuTyr: 2.142 ± 0.041
0.0LeuXaa: 0.0 ± 0.0
Met
3.396MetAla: 3.396 ± 0.053
0.145MetCys: 0.145 ± 0.01
1.25MetAsp: 1.25 ± 0.03
1.365MetGlu: 1.365 ± 0.029
0.765MetPhe: 0.765 ± 0.022
1.866MetGly: 1.866 ± 0.04
0.486MetHis: 0.486 ± 0.023
1.637MetIle: 1.637 ± 0.04
1.148MetLys: 1.148 ± 0.03
2.674MetLeu: 2.674 ± 0.049
0.792MetMet: 0.792 ± 0.027
0.921MetAsn: 0.921 ± 0.027
1.508MetPro: 1.508 ± 0.038
0.966MetGln: 0.966 ± 0.03
1.834MetArg: 1.834 ± 0.036
1.796MetSer: 1.796 ± 0.034
2.048MetThr: 2.048 ± 0.039
1.907MetVal: 1.907 ± 0.04
0.223MetTrp: 0.223 ± 0.013
0.303MetTyr: 0.303 ± 0.016
0.0MetXaa: 0.0 ± 0.0
Asn
3.242AsnAla: 3.242 ± 0.058
0.244AsnCys: 0.244 ± 0.015
1.589AsnAsp: 1.589 ± 0.048
1.501AsnGlu: 1.501 ± 0.035
1.062AsnPhe: 1.062 ± 0.034
2.577AsnGly: 2.577 ± 0.062
0.603AsnHis: 0.603 ± 0.022
1.504AsnIle: 1.504 ± 0.04
0.853AsnLys: 0.853 ± 0.023
2.781AsnLeu: 2.781 ± 0.049
0.772AsnMet: 0.772 ± 0.029
0.806AsnAsn: 0.806 ± 0.03
1.86AsnPro: 1.86 ± 0.041
0.925AsnGln: 0.925 ± 0.028
2.073AsnArg: 2.073 ± 0.042
1.479AsnSer: 1.479 ± 0.042
1.37AsnThr: 1.37 ± 0.037
1.994AsnVal: 1.994 ± 0.052
0.476AsnTrp: 0.476 ± 0.02
0.713AsnTyr: 0.713 ± 0.025
0.0AsnXaa: 0.0 ± 0.0
Pro
5.113ProAla: 5.113 ± 0.076
0.299ProCys: 0.299 ± 0.016
3.486ProAsp: 3.486 ± 0.049
3.684ProGlu: 3.684 ± 0.06
2.044ProPhe: 2.044 ± 0.038
3.924ProGly: 3.924 ± 0.053
1.027ProHis: 1.027 ± 0.029
2.395ProIle: 2.395 ± 0.047
1.78ProLys: 1.78 ± 0.038
4.612ProLeu: 4.612 ± 0.071
1.234ProMet: 1.234 ± 0.033
1.297ProAsn: 1.297 ± 0.034
2.023ProPro: 2.023 ± 0.045
1.606ProGln: 1.606 ± 0.037
2.523ProArg: 2.523 ± 0.042
2.761ProSer: 2.761 ± 0.05
2.338ProThr: 2.338 ± 0.045
4.212ProVal: 4.212 ± 0.06
0.596ProTrp: 0.596 ± 0.021
1.14ProTyr: 1.14 ± 0.029
0.0ProXaa: 0.0 ± 0.0
Gln
3.868GlnAla: 3.868 ± 0.057
0.19GlnCys: 0.19 ± 0.012
1.507GlnAsp: 1.507 ± 0.036
1.778GlnGlu: 1.778 ± 0.041
1.156GlnPhe: 1.156 ± 0.029
2.317GlnGly: 2.317 ± 0.046
0.671GlnHis: 0.671 ± 0.024
2.07GlnIle: 2.07 ± 0.044
1.338GlnLys: 1.338 ± 0.034
3.002GlnLeu: 3.002 ± 0.046
0.999GlnMet: 0.999 ± 0.03
0.98GlnAsn: 0.98 ± 0.033
1.741GlnPro: 1.741 ± 0.041
1.359GlnGln: 1.359 ± 0.045
2.277GlnArg: 2.277 ± 0.048
2.012GlnSer: 2.012 ± 0.038
1.882GlnThr: 1.882 ± 0.04
2.27GlnVal: 2.27 ± 0.04
0.387GlnTrp: 0.387 ± 0.018
0.593GlnTyr: 0.593 ± 0.023
0.0GlnXaa: 0.0 ± 0.0
Arg
6.666ArgAla: 6.666 ± 0.066
0.445ArgCys: 0.445 ± 0.018
3.881ArgAsp: 3.881 ± 0.056
4.115ArgGlu: 4.115 ± 0.07
3.062ArgPhe: 3.062 ± 0.047
4.234ArgGly: 4.234 ± 0.067
1.74ArgHis: 1.74 ± 0.039
4.136ArgIle: 4.136 ± 0.065
2.454ArgLys: 2.454 ± 0.043
7.659ArgLeu: 7.659 ± 0.106
1.93ArgMet: 1.93 ± 0.039
2.047ArgAsn: 2.047 ± 0.038
3.188ArgPro: 3.188 ± 0.053
2.712ArgGln: 2.712 ± 0.048
5.028ArgArg: 5.028 ± 0.085
3.899ArgSer: 3.899 ± 0.067
3.016ArgThr: 3.016 ± 0.054
4.176ArgVal: 4.176 ± 0.064
0.843ArgTrp: 0.843 ± 0.028
1.754ArgTyr: 1.754 ± 0.039
0.0ArgXaa: 0.0 ± 0.0
Ser
6.257SerAla: 6.257 ± 0.082
0.436SerCys: 0.436 ± 0.02
3.312SerAsp: 3.312 ± 0.058
3.229SerGlu: 3.229 ± 0.047
2.466SerPhe: 2.466 ± 0.042
5.771SerGly: 5.771 ± 0.068
1.227SerHis: 1.227 ± 0.028
3.268SerIle: 3.268 ± 0.055
1.888SerLys: 1.888 ± 0.045
6.05SerLeu: 6.05 ± 0.074
1.543SerMet: 1.543 ± 0.036
1.612SerAsn: 1.612 ± 0.039
2.691SerPro: 2.691 ± 0.047
1.825SerGln: 1.825 ± 0.042
3.841SerArg: 3.841 ± 0.052
3.44SerSer: 3.44 ± 0.077
2.857SerThr: 2.857 ± 0.048
4.333SerVal: 4.333 ± 0.063
0.742SerTrp: 0.742 ± 0.023
1.352SerTyr: 1.352 ± 0.029
0.0SerXaa: 0.0 ± 0.0
Thr
5.96ThrAla: 5.96 ± 0.066
0.434ThrCys: 0.434 ± 0.023
2.882ThrAsp: 2.882 ± 0.05
2.868ThrGlu: 2.868 ± 0.05
2.001ThrPhe: 2.001 ± 0.041
5.111ThrGly: 5.111 ± 0.069
1.035ThrHis: 1.035 ± 0.032
3.154ThrIle: 3.154 ± 0.052
1.598ThrLys: 1.598 ± 0.032
5.567ThrLeu: 5.567 ± 0.07
1.323ThrMet: 1.323 ± 0.035
1.448ThrAsn: 1.448 ± 0.038
2.877ThrPro: 2.877 ± 0.054
1.433ThrGln: 1.433 ± 0.033
3.181ThrArg: 3.181 ± 0.055
2.948ThrSer: 2.948 ± 0.05
2.807ThrThr: 2.807 ± 0.052
4.407ThrVal: 4.407 ± 0.066
0.653ThrTrp: 0.653 ± 0.023
1.201ThrTyr: 1.201 ± 0.033
0.0ThrXaa: 0.0 ± 0.0
Val
8.317ValAla: 8.317 ± 0.082
0.639ValCys: 0.639 ± 0.02
4.136ValAsp: 4.136 ± 0.062
4.799ValGlu: 4.799 ± 0.064
2.945ValPhe: 2.945 ± 0.046
5.177ValGly: 5.177 ± 0.072
1.393ValHis: 1.393 ± 0.034
4.538ValIle: 4.538 ± 0.06
2.514ValLys: 2.514 ± 0.042
7.071ValLeu: 7.071 ± 0.083
2.016ValMet: 2.016 ± 0.039
2.024ValAsn: 2.024 ± 0.048
3.475ValPro: 3.475 ± 0.047
2.026ValGln: 2.026 ± 0.038
4.47ValArg: 4.47 ± 0.069
4.793ValSer: 4.793 ± 0.069
4.569ValThr: 4.569 ± 0.068
5.642ValVal: 5.642 ± 0.075
0.809ValTrp: 0.809 ± 0.029
1.525ValTyr: 1.525 ± 0.04
0.0ValXaa: 0.0 ± 0.0
Trp
1.081TrpAla: 1.081 ± 0.031
0.123TrpCys: 0.123 ± 0.009
0.623TrpAsp: 0.623 ± 0.024
0.557TrpGlu: 0.557 ± 0.022
0.571TrpPhe: 0.571 ± 0.02
0.766TrpGly: 0.766 ± 0.031
0.325TrpHis: 0.325 ± 0.015
0.683TrpIle: 0.683 ± 0.02
0.53TrpLys: 0.53 ± 0.023
1.552TrpLeu: 1.552 ± 0.039
0.352TrpMet: 0.352 ± 0.016
0.454TrpAsn: 0.454 ± 0.019
0.626TrpPro: 0.626 ± 0.023
0.555TrpGln: 0.555 ± 0.021
0.918TrpArg: 0.918 ± 0.032
0.78TrpSer: 0.78 ± 0.026
0.675TrpThr: 0.675 ± 0.022
0.725TrpVal: 0.725 ± 0.023
0.209TrpTrp: 0.209 ± 0.012
0.287TrpTyr: 0.287 ± 0.015
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.295TyrAla: 2.295 ± 0.041
0.259TyrCys: 0.259 ± 0.015
1.387TyrAsp: 1.387 ± 0.035
1.257TyrGlu: 1.257 ± 0.032
0.968TyrPhe: 0.968 ± 0.025
2.028TyrGly: 2.028 ± 0.044
0.518TyrHis: 0.518 ± 0.021
1.029TyrIle: 1.029 ± 0.028
0.685TyrLys: 0.685 ± 0.026
2.354TyrLeu: 2.354 ± 0.046
0.468TyrMet: 0.468 ± 0.017
0.634TyrAsn: 0.634 ± 0.023
1.156TyrPro: 1.156 ± 0.028
0.806TyrGln: 0.806 ± 0.024
1.805TyrArg: 1.805 ± 0.036
1.25TyrSer: 1.25 ± 0.03
1.077TyrThr: 1.077 ± 0.033
1.648TyrVal: 1.648 ± 0.041
0.352TyrTrp: 0.352 ± 0.019
0.569TyrTyr: 0.569 ± 0.021
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 4000 proteins (1255675 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