Amino acid dipepetide frequency for Rhizobium sp. Pop5

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
16.202AlaAla: 16.202 ± 0.118
0.976AlaCys: 0.976 ± 0.024
6.634AlaAsp: 6.634 ± 0.067
7.528AlaGlu: 7.528 ± 0.082
4.604AlaPhe: 4.604 ± 0.05
10.082AlaGly: 10.082 ± 0.082
2.044AlaHis: 2.044 ± 0.038
7.042AlaIle: 7.042 ± 0.069
4.381AlaLys: 4.381 ± 0.058
12.247AlaLeu: 12.247 ± 0.096
3.452AlaMet: 3.452 ± 0.045
3.094AlaAsn: 3.094 ± 0.04
4.723AlaPro: 4.723 ± 0.065
3.32AlaGln: 3.32 ± 0.043
7.552AlaArg: 7.552 ± 0.071
6.662AlaSer: 6.662 ± 0.07
5.566AlaThr: 5.566 ± 0.051
8.551AlaVal: 8.551 ± 0.063
1.364AlaTrp: 1.364 ± 0.026
2.588AlaTyr: 2.588 ± 0.04
0.0AlaXaa: 0.0 ± 0.0
Cys
0.851CysAla: 0.851 ± 0.021
0.12CysCys: 0.12 ± 0.008
0.494CysAsp: 0.494 ± 0.017
0.427CysGlu: 0.427 ± 0.016
0.335CysPhe: 0.335 ± 0.014
0.88CysGly: 0.88 ± 0.024
0.254CysHis: 0.254 ± 0.012
0.401CysIle: 0.401 ± 0.018
0.209CysLys: 0.209 ± 0.012
0.817CysLeu: 0.817 ± 0.023
0.164CysMet: 0.164 ± 0.009
0.217CysAsn: 0.217 ± 0.011
0.364CysPro: 0.364 ± 0.013
0.229CysGln: 0.229 ± 0.012
0.6CysArg: 0.6 ± 0.017
0.474CysSer: 0.474 ± 0.017
0.385CysThr: 0.385 ± 0.014
0.557CysVal: 0.557 ± 0.018
0.118CysTrp: 0.118 ± 0.008
0.207CysTyr: 0.207 ± 0.011
0.0CysXaa: 0.0 ± 0.0
Asp
6.344AspAla: 6.344 ± 0.063
0.466AspCys: 0.466 ± 0.016
3.152AspAsp: 3.152 ± 0.047
3.577AspGlu: 3.577 ± 0.051
2.394AspPhe: 2.394 ± 0.039
5.068AspGly: 5.068 ± 0.071
1.281AspHis: 1.281 ± 0.025
3.6AspIle: 3.6 ± 0.049
1.924AspLys: 1.924 ± 0.032
5.675AspLeu: 5.675 ± 0.062
1.373AspMet: 1.373 ± 0.029
1.521AspAsn: 1.521 ± 0.032
3.198AspPro: 3.198 ± 0.044
1.71AspGln: 1.71 ± 0.031
4.114AspArg: 4.114 ± 0.045
2.228AspSer: 2.228 ± 0.038
2.449AspThr: 2.449 ± 0.041
4.102AspVal: 4.102 ± 0.049
0.95AspTrp: 0.95 ± 0.024
1.555AspTyr: 1.555 ± 0.03
0.0AspXaa: 0.0 ± 0.0
Glu
7.347GluAla: 7.347 ± 0.075
0.37GluCys: 0.37 ± 0.013
2.806GluAsp: 2.806 ± 0.039
3.607GluGlu: 3.607 ± 0.053
2.004GluPhe: 2.004 ± 0.037
4.196GluGly: 4.196 ± 0.055
1.178GluHis: 1.178 ± 0.026
3.977GluIle: 3.977 ± 0.055
2.785GluLys: 2.785 ± 0.039
5.498GluLeu: 5.498 ± 0.056
1.579GluMet: 1.579 ± 0.031
1.954GluAsn: 1.954 ± 0.035
2.585GluPro: 2.585 ± 0.038
2.124GluGln: 2.124 ± 0.037
4.828GluArg: 4.828 ± 0.059
2.51GluSer: 2.51 ± 0.036
3.605GluThr: 3.605 ± 0.046
3.758GluVal: 3.758 ± 0.047
0.667GluTrp: 0.667 ± 0.019
1.092GluTyr: 1.092 ± 0.027
0.0GluXaa: 0.0 ± 0.0
Phe
4.722PheAla: 4.722 ± 0.055
0.412PheCys: 0.412 ± 0.015
2.732PheAsp: 2.732 ± 0.043
2.241PheGlu: 2.241 ± 0.032
1.671PhePhe: 1.671 ± 0.037
3.722PheGly: 3.722 ± 0.051
0.799PheHis: 0.799 ± 0.022
2.018PheIle: 2.018 ± 0.033
1.168PheLys: 1.168 ± 0.023
3.652PheLeu: 3.652 ± 0.047
0.927PheMet: 0.927 ± 0.024
1.198PheAsn: 1.198 ± 0.024
1.67PhePro: 1.67 ± 0.032
1.084PheGln: 1.084 ± 0.025
2.408PheArg: 2.408 ± 0.036
2.655PheSer: 2.655 ± 0.037
2.009PheThr: 2.009 ± 0.033
2.938PheVal: 2.938 ± 0.042
0.593PheTrp: 0.593 ± 0.016
1.073PheTyr: 1.073 ± 0.025
0.0PheXaa: 0.0 ± 0.0
Gly
8.318GlyAla: 8.318 ± 0.083
0.796GlyCys: 0.796 ± 0.021
4.347GlyAsp: 4.347 ± 0.055
4.789GlyGlu: 4.789 ± 0.058
3.67GlyPhe: 3.67 ± 0.045
6.705GlyGly: 6.705 ± 0.073
1.822GlyHis: 1.822 ± 0.034
5.036GlyIle: 5.036 ± 0.054
3.687GlyLys: 3.687 ± 0.048
8.55GlyLeu: 8.55 ± 0.07
2.298GlyMet: 2.298 ± 0.032
2.463GlyAsn: 2.463 ± 0.051
3.151GlyPro: 3.151 ± 0.044
2.65GlyGln: 2.65 ± 0.04
5.769GlyArg: 5.769 ± 0.062
4.744GlySer: 4.744 ± 0.06
4.344GlyThr: 4.344 ± 0.053
5.618GlyVal: 5.618 ± 0.057
1.241GlyTrp: 1.241 ± 0.027
2.386GlyTyr: 2.386 ± 0.039
0.0GlyXaa: 0.0 ± 0.0
His
2.189HisAla: 2.189 ± 0.037
0.222HisCys: 0.222 ± 0.012
1.277HisAsp: 1.277 ± 0.028
1.115HisGlu: 1.115 ± 0.027
0.942HisPhe: 0.942 ± 0.026
1.84HisGly: 1.84 ± 0.03
0.577HisHis: 0.577 ± 0.02
1.07HisIle: 1.07 ± 0.024
0.523HisLys: 0.523 ± 0.015
2.098HisLeu: 2.098 ± 0.031
0.551HisMet: 0.551 ± 0.016
0.495HisAsn: 0.495 ± 0.015
1.286HisPro: 1.286 ± 0.03
0.602HisGln: 0.602 ± 0.018
1.433HisArg: 1.433 ± 0.034
1.006HisSer: 1.006 ± 0.023
0.778HisThr: 0.778 ± 0.02
1.528HisVal: 1.528 ± 0.029
0.295HisTrp: 0.295 ± 0.014
0.538HisTyr: 0.538 ± 0.016
0.0HisXaa: 0.0 ± 0.0
Ile
7.897IleAla: 7.897 ± 0.068
0.565IleCys: 0.565 ± 0.02
3.909IleAsp: 3.909 ± 0.042
3.837IleGlu: 3.837 ± 0.056
2.137IlePhe: 2.137 ± 0.04
5.43IleGly: 5.43 ± 0.058
0.999IleHis: 0.999 ± 0.024
2.856IleIle: 2.856 ± 0.045
1.666IleLys: 1.666 ± 0.033
4.993IleLeu: 4.993 ± 0.068
1.189IleMet: 1.189 ± 0.029
1.594IleAsn: 1.594 ± 0.031
2.549IlePro: 2.549 ± 0.041
1.281IleGln: 1.281 ± 0.028
3.654IleArg: 3.654 ± 0.046
3.773IleSer: 3.773 ± 0.049
2.848IleThr: 2.848 ± 0.037
4.723IleVal: 4.723 ± 0.056
0.688IleTrp: 0.688 ± 0.02
1.319IleTyr: 1.319 ± 0.026
0.0IleXaa: 0.0 ± 0.0
Lys
4.768LysAla: 4.768 ± 0.049
0.179LysCys: 0.179 ± 0.01
2.001LysAsp: 2.001 ± 0.038
1.913LysGlu: 1.913 ± 0.038
1.069LysPhe: 1.069 ± 0.025
2.869LysGly: 2.869 ± 0.046
0.692LysHis: 0.692 ± 0.022
2.147LysIle: 2.147 ± 0.034
1.523LysLys: 1.523 ± 0.033
3.752LysLeu: 3.752 ± 0.053
0.923LysMet: 0.923 ± 0.022
1.1LysAsn: 1.1 ± 0.026
2.278LysPro: 2.278 ± 0.036
1.188LysGln: 1.188 ± 0.025
2.499LysArg: 2.499 ± 0.038
2.279LysSer: 2.279 ± 0.037
2.249LysThr: 2.249 ± 0.04
2.66LysVal: 2.66 ± 0.038
0.402LysTrp: 0.402 ± 0.016
0.72LysTyr: 0.72 ± 0.024
0.0LysXaa: 0.0 ± 0.0
Leu
12.541LeuAla: 12.541 ± 0.096
0.862LeuCys: 0.862 ± 0.02
5.816LeuAsp: 5.816 ± 0.064
5.312LeuGlu: 5.312 ± 0.061
3.818LeuPhe: 3.818 ± 0.048
7.71LeuGly: 7.71 ± 0.063
1.88LeuHis: 1.88 ± 0.035
5.375LeuIle: 5.375 ± 0.063
4.154LeuLys: 4.154 ± 0.054
9.427LeuLeu: 9.427 ± 0.101
2.382LeuMet: 2.382 ± 0.032
2.752LeuAsn: 2.752 ± 0.038
5.33LeuPro: 5.33 ± 0.069
2.955LeuGln: 2.955 ± 0.041
6.277LeuArg: 6.277 ± 0.058
6.982LeuSer: 6.982 ± 0.075
5.566LeuThr: 5.566 ± 0.056
7.187LeuVal: 7.187 ± 0.066
1.059LeuTrp: 1.059 ± 0.024
2.147LeuTyr: 2.147 ± 0.034
0.0LeuXaa: 0.0 ± 0.0
Met
3.031MetAla: 3.031 ± 0.04
0.142MetCys: 0.142 ± 0.009
1.144MetAsp: 1.144 ± 0.024
1.262MetGlu: 1.262 ± 0.026
0.719MetPhe: 0.719 ± 0.022
1.656MetGly: 1.656 ± 0.033
0.456MetHis: 0.456 ± 0.013
1.529MetIle: 1.529 ± 0.03
1.196MetLys: 1.196 ± 0.028
2.611MetLeu: 2.611 ± 0.044
0.725MetMet: 0.725 ± 0.021
0.858MetAsn: 0.858 ± 0.021
1.499MetPro: 1.499 ± 0.029
0.893MetGln: 0.893 ± 0.024
1.846MetArg: 1.846 ± 0.036
1.782MetSer: 1.782 ± 0.033
1.936MetThr: 1.936 ± 0.035
1.718MetVal: 1.718 ± 0.035
0.19MetTrp: 0.19 ± 0.011
0.336MetTyr: 0.336 ± 0.012
0.0MetXaa: 0.0 ± 0.0
Asn
3.337AsnAla: 3.337 ± 0.043
0.236AsnCys: 0.236 ± 0.011
1.624AsnAsp: 1.624 ± 0.028
1.417AsnGlu: 1.417 ± 0.03
1.181AsnPhe: 1.181 ± 0.026
2.692AsnGly: 2.692 ± 0.047
0.595AsnHis: 0.595 ± 0.018
1.644AsnIle: 1.644 ± 0.033
0.823AsnLys: 0.823 ± 0.023
2.799AsnLeu: 2.799 ± 0.039
0.674AsnMet: 0.674 ± 0.018
0.852AsnAsn: 0.852 ± 0.027
1.816AsnPro: 1.816 ± 0.03
0.864AsnGln: 0.864 ± 0.023
1.931AsnArg: 1.931 ± 0.032
1.531AsnSer: 1.531 ± 0.037
1.343AsnThr: 1.343 ± 0.029
2.062AsnVal: 2.062 ± 0.033
0.491AsnTrp: 0.491 ± 0.016
0.726AsnTyr: 0.726 ± 0.021
0.0AsnXaa: 0.0 ± 0.0
Pro
5.728ProAla: 5.728 ± 0.069
0.286ProCys: 0.286 ± 0.012
3.422ProAsp: 3.422 ± 0.044
3.538ProGlu: 3.538 ± 0.05
1.983ProPhe: 1.983 ± 0.039
3.997ProGly: 3.997 ± 0.058
1.039ProHis: 1.039 ± 0.024
2.403ProIle: 2.403 ± 0.036
1.778ProLys: 1.778 ± 0.034
4.597ProLeu: 4.597 ± 0.048
1.124ProMet: 1.124 ± 0.024
1.359ProAsn: 1.359 ± 0.029
2.187ProPro: 2.187 ± 0.042
1.563ProGln: 1.563 ± 0.029
2.592ProArg: 2.592 ± 0.041
2.822ProSer: 2.822 ± 0.043
2.307ProThr: 2.307 ± 0.037
4.015ProVal: 4.015 ± 0.048
0.622ProTrp: 0.622 ± 0.019
1.211ProTyr: 1.211 ± 0.026
0.0ProXaa: 0.0 ± 0.0
Gln
3.894GlnAla: 3.894 ± 0.051
0.197GlnCys: 0.197 ± 0.012
1.349GlnAsp: 1.349 ± 0.028
1.579GlnGlu: 1.579 ± 0.026
1.105GlnPhe: 1.105 ± 0.021
2.12GlnGly: 2.12 ± 0.033
0.643GlnHis: 0.643 ± 0.019
1.869GlnIle: 1.869 ± 0.036
1.233GlnLys: 1.233 ± 0.03
2.872GlnLeu: 2.872 ± 0.04
0.904GlnMet: 0.904 ± 0.022
0.906GlnAsn: 0.906 ± 0.02
1.718GlnPro: 1.718 ± 0.035
1.366GlnGln: 1.366 ± 0.031
2.272GlnArg: 2.272 ± 0.039
1.969GlnSer: 1.969 ± 0.034
1.771GlnThr: 1.771 ± 0.035
2.032GlnVal: 2.032 ± 0.028
0.392GlnTrp: 0.392 ± 0.016
0.661GlnTyr: 0.661 ± 0.019
0.0GlnXaa: 0.0 ± 0.0
Arg
6.816ArgAla: 6.816 ± 0.074
0.448ArgCys: 0.448 ± 0.016
3.876ArgAsp: 3.876 ± 0.053
4.044ArgGlu: 4.044 ± 0.05
2.882ArgPhe: 2.882 ± 0.048
4.395ArgGly: 4.395 ± 0.046
1.7ArgHis: 1.7 ± 0.033
4.095ArgIle: 4.095 ± 0.05
2.616ArgLys: 2.616 ± 0.041
7.58ArgLeu: 7.58 ± 0.069
1.881ArgMet: 1.881 ± 0.034
2.058ArgAsn: 2.058 ± 0.035
3.233ArgPro: 3.233 ± 0.04
2.669ArgGln: 2.669 ± 0.042
5.404ArgArg: 5.404 ± 0.069
3.951ArgSer: 3.951 ± 0.049
3.11ArgThr: 3.11 ± 0.038
4.171ArgVal: 4.171 ± 0.048
0.919ArgTrp: 0.919 ± 0.024
1.704ArgTyr: 1.704 ± 0.028
0.0ArgXaa: 0.0 ± 0.0
Ser
6.548SerAla: 6.548 ± 0.069
0.431SerCys: 0.431 ± 0.016
3.282SerAsp: 3.282 ± 0.045
3.203SerGlu: 3.203 ± 0.045
2.623SerPhe: 2.623 ± 0.036
5.953SerGly: 5.953 ± 0.071
1.198SerHis: 1.198 ± 0.027
3.332SerIle: 3.332 ± 0.048
1.998SerLys: 1.998 ± 0.036
5.899SerLeu: 5.899 ± 0.065
1.486SerMet: 1.486 ± 0.027
1.64SerAsn: 1.64 ± 0.031
2.847SerPro: 2.847 ± 0.042
1.755SerGln: 1.755 ± 0.037
3.894SerArg: 3.894 ± 0.048
3.579SerSer: 3.579 ± 0.054
2.887SerThr: 2.887 ± 0.038
4.29SerVal: 4.29 ± 0.045
0.817SerTrp: 0.817 ± 0.02
1.459SerTyr: 1.459 ± 0.031
0.0SerXaa: 0.0 ± 0.0
Thr
6.028ThrAla: 6.028 ± 0.056
0.417ThrCys: 0.417 ± 0.016
2.758ThrAsp: 2.758 ± 0.035
2.791ThrGlu: 2.791 ± 0.037
2.07ThrPhe: 2.07 ± 0.036
4.814ThrGly: 4.814 ± 0.056
0.991ThrHis: 0.991 ± 0.023
3.28ThrIle: 3.28 ± 0.039
1.681ThrLys: 1.681 ± 0.031
5.435ThrLeu: 5.435 ± 0.062
1.246ThrMet: 1.246 ± 0.027
1.37ThrAsn: 1.37 ± 0.024
2.907ThrPro: 2.907 ± 0.042
1.355ThrGln: 1.355 ± 0.028
3.004ThrArg: 3.004 ± 0.04
3.11ThrSer: 3.11 ± 0.042
2.742ThrThr: 2.742 ± 0.042
4.289ThrVal: 4.289 ± 0.053
0.605ThrTrp: 0.605 ± 0.02
1.231ThrTyr: 1.231 ± 0.03
0.0ThrXaa: 0.0 ± 0.0
Val
8.444ValAla: 8.444 ± 0.069
0.6ValCys: 0.6 ± 0.018
3.98ValAsp: 3.98 ± 0.049
4.457ValGlu: 4.457 ± 0.049
2.876ValPhe: 2.876 ± 0.039
5.251ValGly: 5.251 ± 0.058
1.365ValHis: 1.365 ± 0.028
4.417ValIle: 4.417 ± 0.052
2.588ValLys: 2.588 ± 0.038
7.12ValLeu: 7.12 ± 0.073
1.829ValMet: 1.829 ± 0.034
2.062ValAsn: 2.062 ± 0.035
3.417ValPro: 3.417 ± 0.044
1.949ValGln: 1.949 ± 0.031
4.586ValArg: 4.586 ± 0.057
4.89ValSer: 4.89 ± 0.058
4.412ValThr: 4.412 ± 0.046
5.778ValVal: 5.778 ± 0.075
0.848ValTrp: 0.848 ± 0.023
1.508ValTyr: 1.508 ± 0.029
0.0ValXaa: 0.0 ± 0.0
Trp
1.161TrpAla: 1.161 ± 0.031
0.13TrpCys: 0.13 ± 0.009
0.619TrpAsp: 0.619 ± 0.019
0.55TrpGlu: 0.55 ± 0.017
0.556TrpPhe: 0.556 ± 0.018
0.823TrpGly: 0.823 ± 0.022
0.333TrpHis: 0.333 ± 0.012
0.722TrpIle: 0.722 ± 0.022
0.554TrpLys: 0.554 ± 0.02
1.567TrpLeu: 1.567 ± 0.031
0.343TrpMet: 0.343 ± 0.013
0.491TrpAsn: 0.491 ± 0.017
0.66TrpPro: 0.66 ± 0.017
0.526TrpGln: 0.526 ± 0.016
1.032TrpArg: 1.032 ± 0.028
0.833TrpSer: 0.833 ± 0.023
0.725TrpThr: 0.725 ± 0.022
0.717TrpVal: 0.717 ± 0.021
0.236TrpTrp: 0.236 ± 0.011
0.292TrpTyr: 0.292 ± 0.014
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.449TyrAla: 2.449 ± 0.034
0.249TyrCys: 0.249 ± 0.012
1.459TyrAsp: 1.459 ± 0.029
1.28TyrGlu: 1.28 ± 0.027
1.052TyrPhe: 1.052 ± 0.025
2.18TyrGly: 2.18 ± 0.036
0.521TyrHis: 0.521 ± 0.016
1.096TyrIle: 1.096 ± 0.028
0.723TyrLys: 0.723 ± 0.021
2.343TyrLeu: 2.343 ± 0.037
0.477TyrMet: 0.477 ± 0.017
0.653TyrAsn: 0.653 ± 0.02
1.152TyrPro: 1.152 ± 0.027
0.771TyrGln: 0.771 ± 0.021
1.855TyrArg: 1.855 ± 0.032
1.341TyrSer: 1.341 ± 0.027
1.096TyrThr: 1.096 ± 0.026
1.683TyrVal: 1.683 ± 0.03
0.374TyrTrp: 0.374 ± 0.015
0.661TyrTyr: 0.661 ± 0.019
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 7019 proteins (1824631 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