Amino acid dipepetide frequency for Aureimonas sp. Leaf460

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
19.201AlaAla: 19.201 ± 0.174
0.977AlaCys: 0.977 ± 0.029
7.333AlaAsp: 7.333 ± 0.087
9.263AlaGlu: 9.263 ± 0.084
5.014AlaPhe: 5.014 ± 0.065
12.187AlaGly: 12.187 ± 0.117
2.121AlaHis: 2.121 ± 0.041
6.809AlaIle: 6.809 ± 0.07
4.254AlaLys: 4.254 ± 0.061
14.2AlaLeu: 14.2 ± 0.127
3.658AlaMet: 3.658 ± 0.052
2.624AlaAsn: 2.624 ± 0.05
6.125AlaPro: 6.125 ± 0.105
3.192AlaGln: 3.192 ± 0.061
9.344AlaArg: 9.344 ± 0.095
7.42AlaSer: 7.42 ± 0.088
6.346AlaThr: 6.346 ± 0.079
9.206AlaVal: 9.206 ± 0.085
1.414AlaTrp: 1.414 ± 0.03
2.506AlaTyr: 2.506 ± 0.042
0.0AlaXaa: 0.0 ± 0.0
Cys
0.804CysAla: 0.804 ± 0.027
0.071CysCys: 0.071 ± 0.007
0.419CysAsp: 0.419 ± 0.018
0.432CysGlu: 0.432 ± 0.017
0.28CysPhe: 0.28 ± 0.014
0.855CysGly: 0.855 ± 0.029
0.193CysHis: 0.193 ± 0.01
0.332CysIle: 0.332 ± 0.014
0.159CysLys: 0.159 ± 0.01
0.746CysLeu: 0.746 ± 0.026
0.13CysMet: 0.13 ± 0.009
0.161CysAsn: 0.161 ± 0.011
0.348CysPro: 0.348 ± 0.017
0.184CysGln: 0.184 ± 0.012
0.608CysArg: 0.608 ± 0.023
0.369CysSer: 0.369 ± 0.018
0.324CysThr: 0.324 ± 0.016
0.51CysVal: 0.51 ± 0.015
0.082CysTrp: 0.082 ± 0.008
0.156CysTyr: 0.156 ± 0.011
0.0CysXaa: 0.0 ± 0.0
Asp
7.328AspAla: 7.328 ± 0.088
0.44AspCys: 0.44 ± 0.017
3.043AspAsp: 3.043 ± 0.054
3.842AspGlu: 3.842 ± 0.056
2.161AspPhe: 2.161 ± 0.043
5.419AspGly: 5.419 ± 0.081
1.184AspHis: 1.184 ± 0.031
2.935AspIle: 2.935 ± 0.04
1.474AspLys: 1.474 ± 0.037
6.568AspLeu: 6.568 ± 0.076
1.235AspMet: 1.235 ± 0.028
0.979AspAsn: 0.979 ± 0.027
3.52AspPro: 3.52 ± 0.052
1.449AspGln: 1.449 ± 0.035
4.811AspArg: 4.811 ± 0.066
1.811AspSer: 1.811 ± 0.039
2.454AspThr: 2.454 ± 0.038
4.165AspVal: 4.165 ± 0.049
0.93AspTrp: 0.93 ± 0.022
1.352AspTyr: 1.352 ± 0.03
0.0AspXaa: 0.0 ± 0.0
Glu
9.624GluAla: 9.624 ± 0.099
0.293GluCys: 0.293 ± 0.014
2.971GluAsp: 2.971 ± 0.047
3.627GluGlu: 3.627 ± 0.055
1.705GluPhe: 1.705 ± 0.034
5.046GluGly: 5.046 ± 0.059
1.102GluHis: 1.102 ± 0.03
3.865GluIle: 3.865 ± 0.053
2.055GluLys: 2.055 ± 0.041
4.973GluLeu: 4.973 ± 0.058
1.426GluMet: 1.426 ± 0.032
1.399GluAsn: 1.399 ± 0.032
3.101GluPro: 3.101 ± 0.046
1.623GluGln: 1.623 ± 0.037
5.658GluArg: 5.658 ± 0.089
2.373GluSer: 2.373 ± 0.044
4.424GluThr: 4.424 ± 0.056
4.006GluVal: 4.006 ± 0.061
0.619GluTrp: 0.619 ± 0.02
0.783GluTyr: 0.783 ± 0.025
0.0GluXaa: 0.0 ± 0.0
Phe
4.892PheAla: 4.892 ± 0.062
0.338PheCys: 0.338 ± 0.016
2.775PheAsp: 2.775 ± 0.046
2.386PheGlu: 2.386 ± 0.035
1.384PhePhe: 1.384 ± 0.033
3.889PheGly: 3.889 ± 0.061
0.725PheHis: 0.725 ± 0.024
1.456PheIle: 1.456 ± 0.033
0.909PheLys: 0.909 ± 0.026
3.57PheLeu: 3.57 ± 0.061
0.752PheMet: 0.752 ± 0.023
0.846PheAsn: 0.846 ± 0.023
1.565PhePro: 1.565 ± 0.034
1.067PheGln: 1.067 ± 0.026
2.34PheArg: 2.34 ± 0.041
2.191PheSer: 2.191 ± 0.04
1.818PheThr: 1.818 ± 0.037
3.123PheVal: 3.123 ± 0.048
0.483PheTrp: 0.483 ± 0.02
0.835PheTyr: 0.835 ± 0.027
0.0PheXaa: 0.0 ± 0.0
Gly
10.46GlyAla: 10.46 ± 0.11
0.762GlyCys: 0.762 ± 0.023
4.557GlyAsp: 4.557 ± 0.069
5.568GlyGlu: 5.568 ± 0.056
3.705GlyPhe: 3.705 ± 0.052
7.771GlyGly: 7.771 ± 0.114
1.814GlyHis: 1.814 ± 0.034
4.772GlyIle: 4.772 ± 0.056
2.758GlyLys: 2.758 ± 0.051
9.758GlyLeu: 9.758 ± 0.096
2.089GlyMet: 2.089 ± 0.038
1.799GlyAsn: 1.799 ± 0.039
3.792GlyPro: 3.792 ± 0.054
2.646GlyGln: 2.646 ± 0.042
7.246GlyArg: 7.246 ± 0.077
5.06GlySer: 5.06 ± 0.062
5.083GlyThr: 5.083 ± 0.076
6.059GlyVal: 6.059 ± 0.065
1.341GlyTrp: 1.341 ± 0.034
2.106GlyTyr: 2.106 ± 0.042
0.001GlyXaa: 0.001 ± 0.001
His
2.21HisAla: 2.21 ± 0.044
0.187HisCys: 0.187 ± 0.012
1.118HisAsp: 1.118 ± 0.03
1.032HisGlu: 1.032 ± 0.027
0.746HisPhe: 0.746 ± 0.023
1.805HisGly: 1.805 ± 0.044
0.533HisHis: 0.533 ± 0.02
0.766HisIle: 0.766 ± 0.023
0.411HisLys: 0.411 ± 0.019
2.163HisLeu: 2.163 ± 0.038
0.446HisMet: 0.446 ± 0.019
0.32HisAsn: 0.32 ± 0.014
1.298HisPro: 1.298 ± 0.033
0.492HisGln: 0.492 ± 0.02
1.484HisArg: 1.484 ± 0.033
0.814HisSer: 0.814 ± 0.023
0.696HisThr: 0.696 ± 0.021
1.469HisVal: 1.469 ± 0.031
0.257HisTrp: 0.257 ± 0.012
0.458HisTyr: 0.458 ± 0.019
0.0HisXaa: 0.0 ± 0.0
Ile
7.468IleAla: 7.468 ± 0.069
0.408IleCys: 0.408 ± 0.016
3.676IleAsp: 3.676 ± 0.048
3.904IleGlu: 3.904 ± 0.049
1.619IlePhe: 1.619 ± 0.035
5.105IleGly: 5.105 ± 0.068
0.869IleHis: 0.869 ± 0.022
1.692IleIle: 1.692 ± 0.041
1.134IleLys: 1.134 ± 0.032
4.883IleLeu: 4.883 ± 0.052
0.82IleMet: 0.82 ± 0.026
1.014IleAsn: 1.014 ± 0.026
2.095IlePro: 2.095 ± 0.038
1.139IleGln: 1.139 ± 0.032
3.395IleArg: 3.395 ± 0.054
2.529IleSer: 2.529 ± 0.046
2.276IleThr: 2.276 ± 0.039
4.64IleVal: 4.64 ± 0.068
0.537IleTrp: 0.537 ± 0.019
0.952IleTyr: 0.952 ± 0.026
0.0IleXaa: 0.0 ± 0.0
Lys
4.392LysAla: 4.392 ± 0.073
0.109LysCys: 0.109 ± 0.01
1.612LysAsp: 1.612 ± 0.037
1.348LysGlu: 1.348 ± 0.031
0.705LysPhe: 0.705 ± 0.021
2.719LysGly: 2.719 ± 0.047
0.457LysHis: 0.457 ± 0.019
1.502LysIle: 1.502 ± 0.036
0.956LysLys: 0.956 ± 0.035
2.956LysLeu: 2.956 ± 0.055
0.641LysMet: 0.641 ± 0.024
0.629LysAsn: 0.629 ± 0.021
1.962LysPro: 1.962 ± 0.039
0.727LysGln: 0.727 ± 0.022
2.352LysArg: 2.352 ± 0.045
1.714LysSer: 1.714 ± 0.042
1.944LysThr: 1.944 ± 0.043
2.245LysVal: 2.245 ± 0.046
0.28LysTrp: 0.28 ± 0.015
0.424LysTyr: 0.424 ± 0.015
0.0LysXaa: 0.0 ± 0.0
Leu
14.651LeuAla: 14.651 ± 0.132
0.855LeuCys: 0.855 ± 0.027
6.481LeuAsp: 6.481 ± 0.072
5.125LeuGlu: 5.125 ± 0.067
3.682LeuPhe: 3.682 ± 0.061
8.992LeuGly: 8.992 ± 0.082
1.755LeuHis: 1.755 ± 0.039
4.311LeuIle: 4.311 ± 0.061
3.514LeuLys: 3.514 ± 0.059
9.674LeuLeu: 9.674 ± 0.112
2.185LeuMet: 2.185 ± 0.038
2.2LeuAsn: 2.2 ± 0.038
5.536LeuPro: 5.536 ± 0.061
2.624LeuGln: 2.624 ± 0.046
7.069LeuArg: 7.069 ± 0.079
7.152LeuSer: 7.152 ± 0.084
5.317LeuThr: 5.317 ± 0.053
8.288LeuVal: 8.288 ± 0.091
1.07LeuTrp: 1.07 ± 0.028
1.965LeuTyr: 1.965 ± 0.038
0.0LeuXaa: 0.0 ± 0.0
Met
3.041MetAla: 3.041 ± 0.054
0.11MetCys: 0.11 ± 0.008
1.11MetAsp: 1.11 ± 0.027
1.139MetGlu: 1.139 ± 0.03
0.565MetPhe: 0.565 ± 0.024
1.662MetGly: 1.662 ± 0.038
0.341MetHis: 0.341 ± 0.013
1.285MetIle: 1.285 ± 0.029
0.903MetLys: 0.903 ± 0.032
2.238MetLeu: 2.238 ± 0.044
0.594MetMet: 0.594 ± 0.022
0.675MetAsn: 0.675 ± 0.021
1.455MetPro: 1.455 ± 0.033
0.698MetGln: 0.698 ± 0.024
1.896MetArg: 1.896 ± 0.039
1.647MetSer: 1.647 ± 0.032
1.796MetThr: 1.796 ± 0.032
1.567MetVal: 1.567 ± 0.027
0.144MetTrp: 0.144 ± 0.011
0.237MetTyr: 0.237 ± 0.013
0.0MetXaa: 0.0 ± 0.0
Asn
2.846AsnAla: 2.846 ± 0.046
0.172AsnCys: 0.172 ± 0.013
1.215AsnAsp: 1.215 ± 0.033
1.141AsnGlu: 1.141 ± 0.032
0.812AsnPhe: 0.812 ± 0.027
2.214AsnGly: 2.214 ± 0.045
0.4AsnHis: 0.4 ± 0.016
1.078AsnIle: 1.078 ± 0.027
0.514AsnLys: 0.514 ± 0.019
2.139AsnLeu: 2.139 ± 0.035
0.481AsnMet: 0.481 ± 0.018
0.518AsnAsn: 0.518 ± 0.02
1.447AsnPro: 1.447 ± 0.035
0.595AsnGln: 0.595 ± 0.021
1.627AsnArg: 1.627 ± 0.039
0.915AsnSer: 0.915 ± 0.027
1.048AsnThr: 1.048 ± 0.027
1.718AsnVal: 1.718 ± 0.038
0.34AsnTrp: 0.34 ± 0.016
0.505AsnTyr: 0.505 ± 0.019
0.0AsnXaa: 0.0 ± 0.0
Pro
7.167ProAla: 7.167 ± 0.095
0.253ProCys: 0.253 ± 0.014
3.64ProAsp: 3.64 ± 0.048
3.703ProGlu: 3.703 ± 0.048
2.1ProPhe: 2.1 ± 0.041
4.665ProGly: 4.665 ± 0.053
0.954ProHis: 0.954 ± 0.025
2.404ProIle: 2.404 ± 0.041
1.671ProLys: 1.671 ± 0.04
4.768ProLeu: 4.768 ± 0.063
1.185ProMet: 1.185 ± 0.031
1.238ProAsn: 1.238 ± 0.032
2.444ProPro: 2.444 ± 0.054
1.303ProGln: 1.303 ± 0.034
3.004ProArg: 3.004 ± 0.045
3.033ProSer: 3.033 ± 0.05
2.502ProThr: 2.502 ± 0.037
4.218ProVal: 4.218 ± 0.061
0.553ProTrp: 0.553 ± 0.02
1.064ProTyr: 1.064 ± 0.025
0.0ProXaa: 0.0 ± 0.0
Gln
3.655GlnAla: 3.655 ± 0.055
0.15GlnCys: 0.15 ± 0.011
1.24GlnAsp: 1.24 ± 0.028
1.205GlnGlu: 1.205 ± 0.034
0.899GlnPhe: 0.899 ± 0.028
1.987GlnGly: 1.987 ± 0.037
0.475GlnHis: 0.475 ± 0.02
1.688GlnIle: 1.688 ± 0.033
0.887GlnLys: 0.887 ± 0.024
2.441GlnLeu: 2.441 ± 0.046
0.751GlnMet: 0.751 ± 0.025
0.706GlnAsn: 0.706 ± 0.023
1.529GlnPro: 1.529 ± 0.035
0.842GlnGln: 0.842 ± 0.03
2.303GlnArg: 2.303 ± 0.047
1.662GlnSer: 1.662 ± 0.033
1.699GlnThr: 1.699 ± 0.032
1.831GlnVal: 1.831 ± 0.036
0.286GlnTrp: 0.286 ± 0.013
0.456GlnTyr: 0.456 ± 0.018
0.0GlnXaa: 0.0 ± 0.0
Arg
8.413ArgAla: 8.413 ± 0.1
0.471ArgCys: 0.471 ± 0.017
4.115ArgAsp: 4.115 ± 0.057
4.414ArgGlu: 4.414 ± 0.07
3.298ArgPhe: 3.298 ± 0.051
5.1ArgGly: 5.1 ± 0.066
1.825ArgHis: 1.825 ± 0.04
4.39ArgIle: 4.39 ± 0.052
1.97ArgLys: 1.97 ± 0.041
8.766ArgLeu: 8.766 ± 0.086
1.91ArgMet: 1.91 ± 0.034
1.653ArgAsn: 1.653 ± 0.033
4.079ArgPro: 4.079 ± 0.061
2.52ArgGln: 2.52 ± 0.044
6.742ArgArg: 6.742 ± 0.088
4.317ArgSer: 4.317 ± 0.061
3.782ArgThr: 3.782 ± 0.053
4.764ArgVal: 4.764 ± 0.052
0.985ArgTrp: 0.985 ± 0.028
1.625ArgTyr: 1.625 ± 0.033
0.0ArgXaa: 0.0 ± 0.0
Ser
7.041SerAla: 7.041 ± 0.091
0.33SerCys: 0.33 ± 0.018
3.103SerAsp: 3.103 ± 0.046
2.928SerGlu: 2.928 ± 0.052
2.415SerPhe: 2.415 ± 0.041
5.921SerGly: 5.921 ± 0.07
0.973SerHis: 0.973 ± 0.03
2.878SerIle: 2.878 ± 0.048
1.503SerLys: 1.503 ± 0.032
5.628SerLeu: 5.628 ± 0.072
1.33SerMet: 1.33 ± 0.03
1.236SerAsn: 1.236 ± 0.029
2.92SerPro: 2.92 ± 0.046
1.548SerGln: 1.548 ± 0.036
3.884SerArg: 3.884 ± 0.056
3.07SerSer: 3.07 ± 0.054
2.802SerThr: 2.802 ± 0.037
4.157SerVal: 4.157 ± 0.057
0.686SerTrp: 0.686 ± 0.022
1.184SerTyr: 1.184 ± 0.029
0.0SerXaa: 0.0 ± 0.0
Thr
6.492ThrAla: 6.492 ± 0.081
0.359ThrCys: 0.359 ± 0.017
2.735ThrAsp: 2.735 ± 0.04
2.754ThrGlu: 2.754 ± 0.05
2.098ThrPhe: 2.098 ± 0.04
5.141ThrGly: 5.141 ± 0.065
0.973ThrHis: 0.973 ± 0.026
3.222ThrIle: 3.222 ± 0.046
1.516ThrLys: 1.516 ± 0.034
5.936ThrLeu: 5.936 ± 0.061
1.161ThrMet: 1.161 ± 0.028
1.147ThrAsn: 1.147 ± 0.03
3.123ThrPro: 3.123 ± 0.041
1.223ThrGln: 1.223 ± 0.03
3.431ThrArg: 3.431 ± 0.053
2.954ThrSer: 2.954 ± 0.045
2.954ThrThr: 2.954 ± 0.076
4.546ThrVal: 4.546 ± 0.067
0.533ThrTrp: 0.533 ± 0.017
1.203ThrTyr: 1.203 ± 0.03
0.001ThrXaa: 0.001 ± 0.001
Val
10.015ValAla: 10.015 ± 0.095
0.59ValCys: 0.59 ± 0.02
4.02ValAsp: 4.02 ± 0.061
5.17ValGlu: 5.17 ± 0.068
2.888ValPhe: 2.888 ± 0.048
5.924ValGly: 5.924 ± 0.07
1.329ValHis: 1.329 ± 0.03
3.36ValIle: 3.36 ± 0.061
2.094ValLys: 2.094 ± 0.039
7.636ValLeu: 7.636 ± 0.08
1.637ValMet: 1.637 ± 0.034
1.722ValAsn: 1.722 ± 0.039
3.912ValPro: 3.912 ± 0.063
1.819ValGln: 1.819 ± 0.039
5.132ValArg: 5.132 ± 0.056
4.684ValSer: 4.684 ± 0.059
4.448ValThr: 4.448 ± 0.061
6.324ValVal: 6.324 ± 0.082
0.842ValTrp: 0.842 ± 0.025
1.427ValTyr: 1.427 ± 0.029
0.0ValXaa: 0.0 ± 0.0
Trp
1.09TrpAla: 1.09 ± 0.026
0.106TrpCys: 0.106 ± 0.009
0.572TrpAsp: 0.572 ± 0.021
0.497TrpGlu: 0.497 ± 0.018
0.491TrpPhe: 0.491 ± 0.016
0.799TrpGly: 0.799 ± 0.027
0.274TrpHis: 0.274 ± 0.013
0.628TrpIle: 0.628 ± 0.022
0.446TrpLys: 0.446 ± 0.016
1.381TrpLeu: 1.381 ± 0.033
0.326TrpMet: 0.326 ± 0.014
0.376TrpAsn: 0.376 ± 0.018
0.626TrpPro: 0.626 ± 0.021
0.427TrpGln: 0.427 ± 0.018
1.097TrpArg: 1.097 ± 0.027
0.809TrpSer: 0.809 ± 0.024
0.843TrpThr: 0.843 ± 0.025
0.638TrpVal: 0.638 ± 0.023
0.208TrpTrp: 0.208 ± 0.014
0.243TrpTyr: 0.243 ± 0.015
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.406TyrAla: 2.406 ± 0.038
0.184TyrCys: 0.184 ± 0.012
1.361TyrAsp: 1.361 ± 0.03
1.196TyrGlu: 1.196 ± 0.03
0.776TyrPhe: 0.776 ± 0.025
1.945TyrGly: 1.945 ± 0.037
0.406TyrHis: 0.406 ± 0.018
0.785TyrIle: 0.785 ± 0.025
0.547TyrLys: 0.547 ± 0.023
2.02TyrLeu: 2.02 ± 0.039
0.345TyrMet: 0.345 ± 0.015
0.483TyrAsn: 0.483 ± 0.019
0.994TyrPro: 0.994 ± 0.027
0.576TyrGln: 0.576 ± 0.018
1.715TyrArg: 1.715 ± 0.038
1.015TyrSer: 1.015 ± 0.029
0.942TyrThr: 0.942 ± 0.027
1.501TyrVal: 1.501 ± 0.035
0.285TyrTrp: 0.285 ± 0.014
0.493TyrTyr: 0.493 ± 0.017
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
0.001XaaPro: 0.001 ± 0.001
0.0XaaGln: 0.0 ± 0.0
0.0XaaArg: 0.0 ± 0.0
0.0XaaSer: 0.0 ± 0.0
0.001XaaThr: 0.001 ± 0.001
0.0XaaVal: 0.0 ± 0.0
0.0XaaTrp: 0.0 ± 0.0
0.0XaaTyr: 0.0 ± 0.0
0.001XaaXaa: 0.001 ± 0.001
Statistics based on 4794 proteins (1483502 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