Amino acid dipepetide frequency for Rhizobium sp. BK696

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
16.582AlaAla: 16.582 ± 0.161
0.932AlaCys: 0.932 ± 0.022
6.866AlaAsp: 6.866 ± 0.07
7.365AlaGlu: 7.365 ± 0.083
4.682AlaPhe: 4.682 ± 0.047
10.028AlaGly: 10.028 ± 0.079
2.009AlaHis: 2.009 ± 0.032
7.179AlaIle: 7.179 ± 0.07
4.715AlaLys: 4.715 ± 0.058
12.395AlaLeu: 12.395 ± 0.09
3.515AlaMet: 3.515 ± 0.045
3.197AlaAsn: 3.197 ± 0.046
4.754AlaPro: 4.754 ± 0.076
3.425AlaGln: 3.425 ± 0.058
7.139AlaArg: 7.139 ± 0.069
6.898AlaSer: 6.898 ± 0.071
5.805AlaThr: 5.805 ± 0.062
8.633AlaVal: 8.633 ± 0.088
1.296AlaTrp: 1.296 ± 0.026
2.617AlaTyr: 2.617 ± 0.037
0.0AlaXaa: 0.0 ± 0.0
Cys
0.832CysAla: 0.832 ± 0.022
0.106CysCys: 0.106 ± 0.007
0.461CysAsp: 0.461 ± 0.016
0.419CysGlu: 0.419 ± 0.013
0.318CysPhe: 0.318 ± 0.015
0.829CysGly: 0.829 ± 0.025
0.224CysHis: 0.224 ± 0.012
0.403CysIle: 0.403 ± 0.016
0.208CysLys: 0.208 ± 0.011
0.797CysLeu: 0.797 ± 0.021
0.168CysMet: 0.168 ± 0.009
0.205CysAsn: 0.205 ± 0.011
0.349CysPro: 0.349 ± 0.014
0.223CysGln: 0.223 ± 0.011
0.535CysArg: 0.535 ± 0.016
0.461CysSer: 0.461 ± 0.016
0.379CysThr: 0.379 ± 0.016
0.564CysVal: 0.564 ± 0.02
0.104CysTrp: 0.104 ± 0.008
0.189CysTyr: 0.189 ± 0.01
0.0CysXaa: 0.0 ± 0.0
Asp
6.613AspAla: 6.613 ± 0.071
0.46AspCys: 0.46 ± 0.016
3.301AspAsp: 3.301 ± 0.054
3.603AspGlu: 3.603 ± 0.052
2.382AspPhe: 2.382 ± 0.041
5.241AspGly: 5.241 ± 0.07
1.293AspHis: 1.293 ± 0.027
3.552AspIle: 3.552 ± 0.044
2.055AspLys: 2.055 ± 0.033
5.681AspLeu: 5.681 ± 0.057
1.379AspMet: 1.379 ± 0.025
1.562AspAsn: 1.562 ± 0.033
3.138AspPro: 3.138 ± 0.047
1.833AspGln: 1.833 ± 0.036
4.024AspArg: 4.024 ± 0.056
2.233AspSer: 2.233 ± 0.04
2.571AspThr: 2.571 ± 0.042
4.16AspVal: 4.16 ± 0.049
0.891AspTrp: 0.891 ± 0.024
1.611AspTyr: 1.611 ± 0.031
0.0AspXaa: 0.0 ± 0.0
Glu
7.319GluAla: 7.319 ± 0.077
0.344GluCys: 0.344 ± 0.012
2.89GluAsp: 2.89 ± 0.039
3.46GluGlu: 3.46 ± 0.055
1.933GluPhe: 1.933 ± 0.039
4.161GluGly: 4.161 ± 0.05
1.202GluHis: 1.202 ± 0.026
3.924GluIle: 3.924 ± 0.046
2.787GluLys: 2.787 ± 0.045
5.434GluLeu: 5.434 ± 0.058
1.596GluMet: 1.596 ± 0.032
1.859GluAsn: 1.859 ± 0.03
2.601GluPro: 2.601 ± 0.043
2.099GluGln: 2.099 ± 0.039
4.551GluArg: 4.551 ± 0.063
2.399GluSer: 2.399 ± 0.043
3.6GluThr: 3.6 ± 0.04
3.567GluVal: 3.567 ± 0.043
0.706GluTrp: 0.706 ± 0.019
1.045GluTyr: 1.045 ± 0.025
0.0GluXaa: 0.0 ± 0.0
Phe
4.716PheAla: 4.716 ± 0.049
0.405PheCys: 0.405 ± 0.015
2.781PheAsp: 2.781 ± 0.043
2.281PheGlu: 2.281 ± 0.037
1.655PhePhe: 1.655 ± 0.035
3.772PheGly: 3.772 ± 0.054
0.803PheHis: 0.803 ± 0.022
2.048PheIle: 2.048 ± 0.031
1.262PheLys: 1.262 ± 0.029
3.479PheLeu: 3.479 ± 0.054
0.926PheMet: 0.926 ± 0.024
1.185PheAsn: 1.185 ± 0.028
1.629PhePro: 1.629 ± 0.029
1.119PheGln: 1.119 ± 0.025
2.257PheArg: 2.257 ± 0.033
2.597PheSer: 2.597 ± 0.039
2.044PheThr: 2.044 ± 0.038
2.948PheVal: 2.948 ± 0.046
0.561PheTrp: 0.561 ± 0.021
1.009PheTyr: 1.009 ± 0.025
0.0PheXaa: 0.0 ± 0.0
Gly
8.402GlyAla: 8.402 ± 0.077
0.759GlyCys: 0.759 ± 0.019
4.419GlyAsp: 4.419 ± 0.072
4.757GlyGlu: 4.757 ± 0.054
3.686GlyPhe: 3.686 ± 0.044
7.005GlyGly: 7.005 ± 0.1
1.802GlyHis: 1.802 ± 0.032
5.133GlyIle: 5.133 ± 0.052
3.909GlyLys: 3.909 ± 0.044
8.563GlyLeu: 8.563 ± 0.078
2.299GlyMet: 2.299 ± 0.032
2.523GlyAsn: 2.523 ± 0.053
2.987GlyPro: 2.987 ± 0.041
2.698GlyGln: 2.698 ± 0.038
5.438GlyArg: 5.438 ± 0.061
4.899GlySer: 4.899 ± 0.065
4.493GlyThr: 4.493 ± 0.067
5.591GlyVal: 5.591 ± 0.055
1.284GlyTrp: 1.284 ± 0.027
2.392GlyTyr: 2.392 ± 0.037
0.0GlyXaa: 0.0 ± 0.0
His
2.132HisAla: 2.132 ± 0.031
0.199HisCys: 0.199 ± 0.012
1.263HisAsp: 1.263 ± 0.028
1.074HisGlu: 1.074 ± 0.026
0.932HisPhe: 0.932 ± 0.025
1.829HisGly: 1.829 ± 0.031
0.569HisHis: 0.569 ± 0.021
0.982HisIle: 0.982 ± 0.024
0.554HisLys: 0.554 ± 0.018
2.012HisLeu: 2.012 ± 0.034
0.589HisMet: 0.589 ± 0.016
0.477HisAsn: 0.477 ± 0.015
1.24HisPro: 1.24 ± 0.029
0.607HisGln: 0.607 ± 0.016
1.362HisArg: 1.362 ± 0.027
0.999HisSer: 0.999 ± 0.023
0.777HisThr: 0.777 ± 0.02
1.461HisVal: 1.461 ± 0.029
0.299HisTrp: 0.299 ± 0.015
0.537HisTyr: 0.537 ± 0.018
0.0HisXaa: 0.0 ± 0.0
Ile
8.159IleAla: 8.159 ± 0.072
0.574IleCys: 0.574 ± 0.02
3.904IleAsp: 3.904 ± 0.051
3.796IleGlu: 3.796 ± 0.051
2.101IlePhe: 2.101 ± 0.038
5.485IleGly: 5.485 ± 0.068
0.979IleHis: 0.979 ± 0.022
2.885IleIle: 2.885 ± 0.042
1.819IleLys: 1.819 ± 0.034
4.954IleLeu: 4.954 ± 0.065
1.154IleMet: 1.154 ± 0.026
1.669IleAsn: 1.669 ± 0.033
2.531IlePro: 2.531 ± 0.034
1.283IleGln: 1.283 ± 0.029
3.529IleArg: 3.529 ± 0.04
3.636IleSer: 3.636 ± 0.049
2.886IleThr: 2.886 ± 0.041
4.615IleVal: 4.615 ± 0.052
0.718IleTrp: 0.718 ± 0.018
1.3IleTyr: 1.3 ± 0.024
0.0IleXaa: 0.0 ± 0.0
Lys
4.995LysAla: 4.995 ± 0.06
0.159LysCys: 0.159 ± 0.009
2.176LysAsp: 2.176 ± 0.042
1.922LysGlu: 1.922 ± 0.034
1.094LysPhe: 1.094 ± 0.025
2.948LysGly: 2.948 ± 0.047
0.735LysHis: 0.735 ± 0.021
2.192LysIle: 2.192 ± 0.031
1.687LysLys: 1.687 ± 0.037
3.945LysLeu: 3.945 ± 0.046
1.011LysMet: 1.011 ± 0.022
1.123LysAsn: 1.123 ± 0.026
2.377LysPro: 2.377 ± 0.041
1.283LysGln: 1.283 ± 0.026
2.594LysArg: 2.594 ± 0.042
2.39LysSer: 2.39 ± 0.038
2.413LysThr: 2.413 ± 0.039
2.762LysVal: 2.762 ± 0.042
0.386LysTrp: 0.386 ± 0.015
0.721LysTyr: 0.721 ± 0.018
0.0LysXaa: 0.0 ± 0.0
Leu
12.425LeuAla: 12.425 ± 0.105
0.807LeuCys: 0.807 ± 0.023
5.834LeuAsp: 5.834 ± 0.053
5.155LeuGlu: 5.155 ± 0.06
3.752LeuPhe: 3.752 ± 0.054
7.71LeuGly: 7.71 ± 0.067
1.759LeuHis: 1.759 ± 0.033
5.312LeuIle: 5.312 ± 0.059
4.257LeuLys: 4.257 ± 0.053
9.259LeuLeu: 9.259 ± 0.092
2.429LeuMet: 2.429 ± 0.036
2.729LeuAsn: 2.729 ± 0.034
5.16LeuPro: 5.16 ± 0.053
3.025LeuGln: 3.025 ± 0.043
5.964LeuArg: 5.964 ± 0.066
7.058LeuSer: 7.058 ± 0.078
5.697LeuThr: 5.697 ± 0.067
7.038LeuVal: 7.038 ± 0.062
1.036LeuTrp: 1.036 ± 0.026
2.074LeuTyr: 2.074 ± 0.036
0.0LeuXaa: 0.0 ± 0.0
Met
3.0MetAla: 3.0 ± 0.046
0.154MetCys: 0.154 ± 0.009
1.236MetAsp: 1.236 ± 0.024
1.253MetGlu: 1.253 ± 0.026
0.762MetPhe: 0.762 ± 0.018
1.695MetGly: 1.695 ± 0.031
0.465MetHis: 0.465 ± 0.017
1.555MetIle: 1.555 ± 0.031
1.171MetLys: 1.171 ± 0.025
2.524MetLeu: 2.524 ± 0.037
0.726MetMet: 0.726 ± 0.022
0.859MetAsn: 0.859 ± 0.02
1.532MetPro: 1.532 ± 0.029
0.936MetGln: 0.936 ± 0.025
1.809MetArg: 1.809 ± 0.031
1.909MetSer: 1.909 ± 0.03
2.05MetThr: 2.05 ± 0.034
1.69MetVal: 1.69 ± 0.034
0.199MetTrp: 0.199 ± 0.01
0.328MetTyr: 0.328 ± 0.014
0.0MetXaa: 0.0 ± 0.0
Asn
3.431AsnAla: 3.431 ± 0.047
0.233AsnCys: 0.233 ± 0.011
1.665AsnAsp: 1.665 ± 0.041
1.443AsnGlu: 1.443 ± 0.027
1.166AsnPhe: 1.166 ± 0.026
2.743AsnGly: 2.743 ± 0.05
0.568AsnHis: 0.568 ± 0.017
1.585AsnIle: 1.585 ± 0.03
0.884AsnLys: 0.884 ± 0.023
2.801AsnLeu: 2.801 ± 0.039
0.686AsnMet: 0.686 ± 0.024
0.891AsnAsn: 0.891 ± 0.026
1.837AsnPro: 1.837 ± 0.035
0.864AsnGln: 0.864 ± 0.023
1.861AsnArg: 1.861 ± 0.031
1.576AsnSer: 1.576 ± 0.035
1.34AsnThr: 1.34 ± 0.029
2.116AsnVal: 2.116 ± 0.038
0.468AsnTrp: 0.468 ± 0.018
0.723AsnTyr: 0.723 ± 0.018
0.0AsnXaa: 0.0 ± 0.0
Pro
5.714ProAla: 5.714 ± 0.073
0.268ProCys: 0.268 ± 0.012
3.43ProAsp: 3.43 ± 0.046
3.536ProGlu: 3.536 ± 0.049
1.962ProPhe: 1.962 ± 0.036
4.025ProGly: 4.025 ± 0.046
0.978ProHis: 0.978 ± 0.022
2.323ProIle: 2.323 ± 0.034
1.871ProLys: 1.871 ± 0.037
4.477ProLeu: 4.477 ± 0.051
1.106ProMet: 1.106 ± 0.024
1.312ProAsn: 1.312 ± 0.028
2.109ProPro: 2.109 ± 0.042
1.67ProGln: 1.67 ± 0.035
2.423ProArg: 2.423 ± 0.039
2.765ProSer: 2.765 ± 0.039
2.09ProThr: 2.09 ± 0.04
4.14ProVal: 4.14 ± 0.054
0.608ProTrp: 0.608 ± 0.016
1.21ProTyr: 1.21 ± 0.029
0.0ProXaa: 0.0 ± 0.0
Gln
3.884GlnAla: 3.884 ± 0.049
0.188GlnCys: 0.188 ± 0.011
1.435GlnAsp: 1.435 ± 0.03
1.529GlnGlu: 1.529 ± 0.031
1.119GlnPhe: 1.119 ± 0.025
2.139GlnGly: 2.139 ± 0.032
0.637GlnHis: 0.637 ± 0.018
2.005GlnIle: 2.005 ± 0.054
1.313GlnLys: 1.313 ± 0.028
2.903GlnLeu: 2.903 ± 0.043
0.982GlnMet: 0.982 ± 0.022
0.951GlnAsn: 0.951 ± 0.025
1.757GlnPro: 1.757 ± 0.036
1.391GlnGln: 1.391 ± 0.027
2.228GlnArg: 2.228 ± 0.035
1.973GlnSer: 1.973 ± 0.036
1.843GlnThr: 1.843 ± 0.036
2.094GlnVal: 2.094 ± 0.039
0.397GlnTrp: 0.397 ± 0.014
0.674GlnTyr: 0.674 ± 0.02
0.0GlnXaa: 0.0 ± 0.0
Arg
6.476ArgAla: 6.476 ± 0.067
0.416ArgCys: 0.416 ± 0.017
3.763ArgAsp: 3.763 ± 0.046
3.863ArgGlu: 3.863 ± 0.055
2.76ArgPhe: 2.76 ± 0.038
4.277ArgGly: 4.277 ± 0.046
1.545ArgHis: 1.545 ± 0.03
3.884ArgIle: 3.884 ± 0.056
2.544ArgLys: 2.544 ± 0.044
6.93ArgLeu: 6.93 ± 0.075
1.878ArgMet: 1.878 ± 0.034
1.974ArgAsn: 1.974 ± 0.034
3.037ArgPro: 3.037 ± 0.043
2.506ArgGln: 2.506 ± 0.038
4.796ArgArg: 4.796 ± 0.067
3.843ArgSer: 3.843 ± 0.053
3.083ArgThr: 3.083 ± 0.039
4.079ArgVal: 4.079 ± 0.05
0.889ArgTrp: 0.889 ± 0.022
1.737ArgTyr: 1.737 ± 0.036
0.0ArgXaa: 0.0 ± 0.0
Ser
6.76SerAla: 6.76 ± 0.078
0.397SerCys: 0.397 ± 0.015
3.292SerAsp: 3.292 ± 0.05
3.148SerGlu: 3.148 ± 0.045
2.538SerPhe: 2.538 ± 0.034
6.105SerGly: 6.105 ± 0.078
1.189SerHis: 1.189 ± 0.024
3.415SerIle: 3.415 ± 0.045
2.101SerLys: 2.101 ± 0.035
5.867SerLeu: 5.867 ± 0.065
1.493SerMet: 1.493 ± 0.028
1.692SerAsn: 1.692 ± 0.032
2.779SerPro: 2.779 ± 0.039
1.743SerGln: 1.743 ± 0.033
3.723SerArg: 3.723 ± 0.051
3.573SerSer: 3.573 ± 0.055
2.946SerThr: 2.946 ± 0.041
4.353SerVal: 4.353 ± 0.05
0.803SerTrp: 0.803 ± 0.018
1.448SerTyr: 1.448 ± 0.03
0.0SerXaa: 0.0 ± 0.0
Thr
6.337ThrAla: 6.337 ± 0.072
0.4ThrCys: 0.4 ± 0.014
2.843ThrAsp: 2.843 ± 0.039
2.74ThrGlu: 2.74 ± 0.036
2.103ThrPhe: 2.103 ± 0.035
5.038ThrGly: 5.038 ± 0.063
0.965ThrHis: 0.965 ± 0.024
3.259ThrIle: 3.259 ± 0.042
1.828ThrLys: 1.828 ± 0.033
5.498ThrLeu: 5.498 ± 0.06
1.26ThrMet: 1.26 ± 0.028
1.443ThrAsn: 1.443 ± 0.031
2.939ThrPro: 2.939 ± 0.047
1.401ThrGln: 1.401 ± 0.027
2.929ThrArg: 2.929 ± 0.043
3.097ThrSer: 3.097 ± 0.05
2.791ThrThr: 2.791 ± 0.039
4.435ThrVal: 4.435 ± 0.056
0.618ThrTrp: 0.618 ± 0.02
1.278ThrTyr: 1.278 ± 0.024
0.0ThrXaa: 0.0 ± 0.0
Val
8.596ValAla: 8.596 ± 0.073
0.593ValCys: 0.593 ± 0.018
3.938ValAsp: 3.938 ± 0.045
4.321ValGlu: 4.321 ± 0.049
2.954ValPhe: 2.954 ± 0.04
5.035ValGly: 5.035 ± 0.055
1.343ValHis: 1.343 ± 0.03
4.537ValIle: 4.537 ± 0.054
2.644ValLys: 2.644 ± 0.041
7.086ValLeu: 7.086 ± 0.069
1.839ValMet: 1.839 ± 0.033
2.108ValAsn: 2.108 ± 0.038
3.495ValPro: 3.495 ± 0.047
1.988ValGln: 1.988 ± 0.032
4.394ValArg: 4.394 ± 0.054
4.868ValSer: 4.868 ± 0.051
4.527ValThr: 4.527 ± 0.054
5.581ValVal: 5.581 ± 0.062
0.813ValTrp: 0.813 ± 0.021
1.556ValTyr: 1.556 ± 0.029
0.0ValXaa: 0.0 ± 0.0
Trp
1.146TrpAla: 1.146 ± 0.026
0.125TrpCys: 0.125 ± 0.008
0.63TrpAsp: 0.63 ± 0.018
0.529TrpGlu: 0.529 ± 0.018
0.537TrpPhe: 0.537 ± 0.018
0.809TrpGly: 0.809 ± 0.021
0.323TrpHis: 0.323 ± 0.013
0.725TrpIle: 0.725 ± 0.018
0.526TrpLys: 0.526 ± 0.018
1.537TrpLeu: 1.537 ± 0.035
0.336TrpMet: 0.336 ± 0.012
0.484TrpAsn: 0.484 ± 0.019
0.648TrpPro: 0.648 ± 0.018
0.55TrpGln: 0.55 ± 0.019
0.98TrpArg: 0.98 ± 0.021
0.814TrpSer: 0.814 ± 0.022
0.742TrpThr: 0.742 ± 0.019
0.714TrpVal: 0.714 ± 0.021
0.219TrpTrp: 0.219 ± 0.012
0.297TrpTyr: 0.297 ± 0.012
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.511TyrAla: 2.511 ± 0.04
0.254TyrCys: 0.254 ± 0.012
1.455TyrAsp: 1.455 ± 0.025
1.286TyrGlu: 1.286 ± 0.028
1.042TyrPhe: 1.042 ± 0.024
2.167TyrGly: 2.167 ± 0.038
0.504TyrHis: 0.504 ± 0.017
1.078TyrIle: 1.078 ± 0.021
0.779TyrLys: 0.779 ± 0.02
2.338TyrLeu: 2.338 ± 0.038
0.479TyrMet: 0.479 ± 0.016
0.639TyrAsn: 0.639 ± 0.019
1.122TyrPro: 1.122 ± 0.027
0.795TyrGln: 0.795 ± 0.022
1.741TyrArg: 1.741 ± 0.03
1.381TyrSer: 1.381 ± 0.027
1.124TyrThr: 1.124 ± 0.026
1.675TyrVal: 1.675 ± 0.03
0.375TyrTrp: 0.375 ± 0.014
0.684TyrTyr: 0.684 ± 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 6267 proteins (1901983 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