Amino acid dipepetide frequency for Rhizobium sp. RU36D

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
16.264AlaAla: 16.264 ± 0.128
0.977AlaCys: 0.977 ± 0.028
6.84AlaAsp: 6.84 ± 0.067
7.584AlaGlu: 7.584 ± 0.085
4.55AlaPhe: 4.55 ± 0.054
10.155AlaGly: 10.155 ± 0.118
2.054AlaHis: 2.054 ± 0.035
6.83AlaIle: 6.83 ± 0.062
4.23AlaLys: 4.23 ± 0.056
12.727AlaLeu: 12.727 ± 0.098
3.709AlaMet: 3.709 ± 0.05
2.978AlaAsn: 2.978 ± 0.049
4.798AlaPro: 4.798 ± 0.062
3.553AlaGln: 3.553 ± 0.054
7.852AlaArg: 7.852 ± 0.086
6.735AlaSer: 6.735 ± 0.072
5.929AlaThr: 5.929 ± 0.074
8.714AlaVal: 8.714 ± 0.087
1.295AlaTrp: 1.295 ± 0.026
2.6AlaTyr: 2.6 ± 0.034
0.0AlaXaa: 0.0 ± 0.0
Cys
0.837CysAla: 0.837 ± 0.02
0.13CysCys: 0.13 ± 0.008
0.512CysAsp: 0.512 ± 0.016
0.429CysGlu: 0.429 ± 0.015
0.317CysPhe: 0.317 ± 0.015
0.894CysGly: 0.894 ± 0.027
0.246CysHis: 0.246 ± 0.01
0.411CysIle: 0.411 ± 0.017
0.17CysLys: 0.17 ± 0.01
0.782CysLeu: 0.782 ± 0.022
0.168CysMet: 0.168 ± 0.01
0.214CysAsn: 0.214 ± 0.011
0.405CysPro: 0.405 ± 0.014
0.239CysGln: 0.239 ± 0.011
0.605CysArg: 0.605 ± 0.019
0.479CysSer: 0.479 ± 0.017
0.375CysThr: 0.375 ± 0.015
0.552CysVal: 0.552 ± 0.02
0.102CysTrp: 0.102 ± 0.007
0.19CysTyr: 0.19 ± 0.011
0.0CysXaa: 0.0 ± 0.0
Asp
6.358AspAla: 6.358 ± 0.07
0.494AspCys: 0.494 ± 0.018
2.991AspAsp: 2.991 ± 0.047
3.399AspGlu: 3.399 ± 0.049
2.392AspPhe: 2.392 ± 0.036
4.988AspGly: 4.988 ± 0.054
1.296AspHis: 1.296 ± 0.031
3.514AspIle: 3.514 ± 0.044
1.967AspLys: 1.967 ± 0.041
6.013AspLeu: 6.013 ± 0.064
1.532AspMet: 1.532 ± 0.028
1.418AspAsn: 1.418 ± 0.029
3.229AspPro: 3.229 ± 0.043
1.767AspGln: 1.767 ± 0.032
4.216AspArg: 4.216 ± 0.057
2.18AspSer: 2.18 ± 0.037
2.506AspThr: 2.506 ± 0.04
4.106AspVal: 4.106 ± 0.056
0.919AspTrp: 0.919 ± 0.023
1.493AspTyr: 1.493 ± 0.028
0.0AspXaa: 0.0 ± 0.0
Glu
7.521GluAla: 7.521 ± 0.078
0.355GluCys: 0.355 ± 0.015
2.854GluAsp: 2.854 ± 0.046
3.255GluGlu: 3.255 ± 0.056
1.845GluPhe: 1.845 ± 0.036
4.187GluGly: 4.187 ± 0.051
1.174GluHis: 1.174 ± 0.031
3.882GluIle: 3.882 ± 0.053
2.603GluLys: 2.603 ± 0.045
5.367GluLeu: 5.367 ± 0.059
1.591GluMet: 1.591 ± 0.031
1.831GluAsn: 1.831 ± 0.036
2.625GluPro: 2.625 ± 0.038
2.215GluGln: 2.215 ± 0.041
4.674GluArg: 4.674 ± 0.063
2.352GluSer: 2.352 ± 0.039
3.494GluThr: 3.494 ± 0.048
3.737GluVal: 3.737 ± 0.049
0.685GluTrp: 0.685 ± 0.021
0.98GluTyr: 0.98 ± 0.026
0.0GluXaa: 0.0 ± 0.0
Phe
4.596PheAla: 4.596 ± 0.046
0.406PheCys: 0.406 ± 0.016
2.663PheAsp: 2.663 ± 0.037
2.186PheGlu: 2.186 ± 0.035
1.532PhePhe: 1.532 ± 0.036
3.714PheGly: 3.714 ± 0.048
0.793PheHis: 0.793 ± 0.02
1.919PheIle: 1.919 ± 0.035
1.111PheLys: 1.111 ± 0.027
3.51PheLeu: 3.51 ± 0.055
0.902PheMet: 0.902 ± 0.024
1.144PheAsn: 1.144 ± 0.027
1.604PhePro: 1.604 ± 0.031
1.114PheGln: 1.114 ± 0.024
2.271PheArg: 2.271 ± 0.036
2.468PheSer: 2.468 ± 0.042
1.952PheThr: 1.952 ± 0.034
2.887PheVal: 2.887 ± 0.044
0.571PheTrp: 0.571 ± 0.02
0.972PheTyr: 0.972 ± 0.026
0.0PheXaa: 0.0 ± 0.0
Gly
8.581GlyAla: 8.581 ± 0.088
0.8GlyCys: 0.8 ± 0.024
4.248GlyAsp: 4.248 ± 0.051
4.67GlyGlu: 4.67 ± 0.059
3.681GlyPhe: 3.681 ± 0.05
6.868GlyGly: 6.868 ± 0.088
1.881GlyHis: 1.881 ± 0.038
5.01GlyIle: 5.01 ± 0.066
3.541GlyLys: 3.541 ± 0.049
9.024GlyLeu: 9.024 ± 0.093
2.458GlyMet: 2.458 ± 0.038
2.247GlyAsn: 2.247 ± 0.042
3.155GlyPro: 3.155 ± 0.04
2.847GlyGln: 2.847 ± 0.043
5.663GlyArg: 5.663 ± 0.059
4.846GlySer: 4.846 ± 0.084
4.51GlyThr: 4.51 ± 0.086
5.808GlyVal: 5.808 ± 0.069
1.251GlyTrp: 1.251 ± 0.029
2.396GlyTyr: 2.396 ± 0.038
0.0GlyXaa: 0.0 ± 0.0
His
2.237HisAla: 2.237 ± 0.041
0.207HisCys: 0.207 ± 0.011
1.24HisAsp: 1.24 ± 0.027
1.069HisGlu: 1.069 ± 0.026
0.883HisPhe: 0.883 ± 0.025
1.94HisGly: 1.94 ± 0.036
0.59HisHis: 0.59 ± 0.024
1.005HisIle: 1.005 ± 0.026
0.527HisLys: 0.527 ± 0.018
2.094HisLeu: 2.094 ± 0.032
0.524HisMet: 0.524 ± 0.018
0.454HisAsn: 0.454 ± 0.015
1.22HisPro: 1.22 ± 0.029
0.657HisGln: 0.657 ± 0.019
1.364HisArg: 1.364 ± 0.03
0.944HisSer: 0.944 ± 0.024
0.84HisThr: 0.84 ± 0.021
1.49HisVal: 1.49 ± 0.034
0.302HisTrp: 0.302 ± 0.012
0.542HisTyr: 0.542 ± 0.017
0.0HisXaa: 0.0 ± 0.0
Ile
7.688IleAla: 7.688 ± 0.074
0.561IleCys: 0.561 ± 0.017
3.834IleAsp: 3.834 ± 0.048
3.799IleGlu: 3.799 ± 0.055
1.926IlePhe: 1.926 ± 0.034
5.33IleGly: 5.33 ± 0.068
0.956IleHis: 0.956 ± 0.021
2.712IleIle: 2.712 ± 0.046
1.726IleLys: 1.726 ± 0.037
4.959IleLeu: 4.959 ± 0.065
1.22IleMet: 1.22 ± 0.031
1.674IleAsn: 1.674 ± 0.036
2.397IlePro: 2.397 ± 0.032
1.34IleGln: 1.34 ± 0.025
3.524IleArg: 3.524 ± 0.045
3.606IleSer: 3.606 ± 0.046
2.855IleThr: 2.855 ± 0.043
4.347IleVal: 4.347 ± 0.059
0.654IleTrp: 0.654 ± 0.019
1.259IleTyr: 1.259 ± 0.028
0.0IleXaa: 0.0 ± 0.0
Lys
4.894LysAla: 4.894 ± 0.065
0.146LysCys: 0.146 ± 0.008
1.843LysAsp: 1.843 ± 0.035
1.71LysGlu: 1.71 ± 0.036
1.003LysPhe: 1.003 ± 0.025
2.83LysGly: 2.83 ± 0.04
0.627LysHis: 0.627 ± 0.015
2.031LysIle: 2.031 ± 0.032
1.451LysLys: 1.451 ± 0.034
3.596LysLeu: 3.596 ± 0.049
0.905LysMet: 0.905 ± 0.026
1.0LysAsn: 1.0 ± 0.023
2.294LysPro: 2.294 ± 0.045
1.115LysGln: 1.115 ± 0.026
2.366LysArg: 2.366 ± 0.042
2.174LysSer: 2.174 ± 0.038
2.25LysThr: 2.25 ± 0.038
2.623LysVal: 2.623 ± 0.041
0.379LysTrp: 0.379 ± 0.014
0.641LysTyr: 0.641 ± 0.019
0.0LysXaa: 0.0 ± 0.0
Leu
12.929LeuAla: 12.929 ± 0.099
0.884LeuCys: 0.884 ± 0.024
5.899LeuAsp: 5.899 ± 0.06
5.38LeuGlu: 5.38 ± 0.068
3.647LeuPhe: 3.647 ± 0.056
8.067LeuGly: 8.067 ± 0.081
1.745LeuHis: 1.745 ± 0.036
5.293LeuIle: 5.293 ± 0.063
4.221LeuLys: 4.221 ± 0.049
9.552LeuLeu: 9.552 ± 0.109
2.574LeuMet: 2.574 ± 0.046
2.664LeuAsn: 2.664 ± 0.037
5.463LeuPro: 5.463 ± 0.061
2.924LeuGln: 2.924 ± 0.04
6.166LeuArg: 6.166 ± 0.064
7.147LeuSer: 7.147 ± 0.067
5.766LeuThr: 5.766 ± 0.055
7.469LeuVal: 7.469 ± 0.072
1.111LeuTrp: 1.111 ± 0.026
2.187LeuTyr: 2.187 ± 0.038
0.0LeuXaa: 0.0 ± 0.0
Met
3.388MetAla: 3.388 ± 0.049
0.143MetCys: 0.143 ± 0.009
1.295MetAsp: 1.295 ± 0.027
1.282MetGlu: 1.282 ± 0.028
0.762MetPhe: 0.762 ± 0.023
1.837MetGly: 1.837 ± 0.038
0.443MetHis: 0.443 ± 0.013
1.557MetIle: 1.557 ± 0.029
1.121MetLys: 1.121 ± 0.027
2.719MetLeu: 2.719 ± 0.04
0.762MetMet: 0.762 ± 0.023
0.883MetAsn: 0.883 ± 0.022
1.586MetPro: 1.586 ± 0.029
0.934MetGln: 0.934 ± 0.025
1.821MetArg: 1.821 ± 0.038
1.826MetSer: 1.826 ± 0.034
2.076MetThr: 2.076 ± 0.034
1.881MetVal: 1.881 ± 0.031
0.203MetTrp: 0.203 ± 0.011
0.302MetTyr: 0.302 ± 0.013
0.0MetXaa: 0.0 ± 0.0
Asn
3.351AsnAla: 3.351 ± 0.054
0.228AsnCys: 0.228 ± 0.011
1.508AsnAsp: 1.508 ± 0.029
1.301AsnGlu: 1.301 ± 0.028
1.028AsnPhe: 1.028 ± 0.024
2.523AsnGly: 2.523 ± 0.045
0.529AsnHis: 0.529 ± 0.017
1.543AsnIle: 1.543 ± 0.031
0.802AsnLys: 0.802 ± 0.02
2.696AsnLeu: 2.696 ± 0.041
0.707AsnMet: 0.707 ± 0.023
0.821AsnAsn: 0.821 ± 0.032
1.913AsnPro: 1.913 ± 0.035
0.8AsnGln: 0.8 ± 0.024
1.96AsnArg: 1.96 ± 0.035
1.475AsnSer: 1.475 ± 0.035
1.33AsnThr: 1.33 ± 0.033
1.928AsnVal: 1.928 ± 0.042
0.453AsnTrp: 0.453 ± 0.016
0.709AsnTyr: 0.709 ± 0.021
0.0AsnXaa: 0.0 ± 0.0
Pro
5.705ProAla: 5.705 ± 0.068
0.272ProCys: 0.272 ± 0.013
3.526ProAsp: 3.526 ± 0.044
3.508ProGlu: 3.508 ± 0.051
1.939ProPhe: 1.939 ± 0.035
4.091ProGly: 4.091 ± 0.055
1.049ProHis: 1.049 ± 0.026
2.348ProIle: 2.348 ± 0.034
1.701ProLys: 1.701 ± 0.028
4.703ProLeu: 4.703 ± 0.053
1.263ProMet: 1.263 ± 0.024
1.27ProAsn: 1.27 ± 0.027
2.225ProPro: 2.225 ± 0.046
1.725ProGln: 1.725 ± 0.03
2.589ProArg: 2.589 ± 0.046
2.746ProSer: 2.746 ± 0.043
2.295ProThr: 2.295 ± 0.036
4.171ProVal: 4.171 ± 0.053
0.63ProTrp: 0.63 ± 0.02
1.21ProTyr: 1.21 ± 0.028
0.0ProXaa: 0.0 ± 0.0
Gln
4.146GlnAla: 4.146 ± 0.052
0.188GlnCys: 0.188 ± 0.01
1.526GlnAsp: 1.526 ± 0.032
1.636GlnGlu: 1.636 ± 0.03
1.126GlnPhe: 1.126 ± 0.027
2.33GlnGly: 2.33 ± 0.038
0.65GlnHis: 0.65 ± 0.019
1.913GlnIle: 1.913 ± 0.033
1.215GlnLys: 1.215 ± 0.024
2.928GlnLeu: 2.928 ± 0.046
0.957GlnMet: 0.957 ± 0.021
0.924GlnAsn: 0.924 ± 0.027
1.76GlnPro: 1.76 ± 0.036
1.397GlnGln: 1.397 ± 0.035
2.295GlnArg: 2.295 ± 0.042
1.927GlnSer: 1.927 ± 0.032
1.807GlnThr: 1.807 ± 0.035
2.2GlnVal: 2.2 ± 0.037
0.4GlnTrp: 0.4 ± 0.017
0.588GlnTyr: 0.588 ± 0.02
0.0GlnXaa: 0.0 ± 0.0
Arg
6.882ArgAla: 6.882 ± 0.075
0.472ArgCys: 0.472 ± 0.017
3.923ArgAsp: 3.923 ± 0.053
3.966ArgGlu: 3.966 ± 0.052
2.842ArgPhe: 2.842 ± 0.043
4.353ArgGly: 4.353 ± 0.058
1.777ArgHis: 1.777 ± 0.034
4.056ArgIle: 4.056 ± 0.044
2.396ArgLys: 2.396 ± 0.042
7.479ArgLeu: 7.479 ± 0.074
1.898ArgMet: 1.898 ± 0.037
2.027ArgAsn: 2.027 ± 0.036
3.267ArgPro: 3.267 ± 0.044
2.742ArgGln: 2.742 ± 0.039
5.023ArgArg: 5.023 ± 0.067
3.674ArgSer: 3.674 ± 0.05
3.013ArgThr: 3.013 ± 0.039
4.374ArgVal: 4.374 ± 0.051
0.872ArgTrp: 0.872 ± 0.023
1.72ArgTyr: 1.72 ± 0.031
0.0ArgXaa: 0.0 ± 0.0
Ser
6.586SerAla: 6.586 ± 0.084
0.411SerCys: 0.411 ± 0.015
3.155SerAsp: 3.155 ± 0.045
2.979SerGlu: 2.979 ± 0.042
2.465SerPhe: 2.465 ± 0.045
5.997SerGly: 5.997 ± 0.087
1.181SerHis: 1.181 ± 0.023
3.222SerIle: 3.222 ± 0.048
1.808SerLys: 1.808 ± 0.032
5.989SerLeu: 5.989 ± 0.06
1.494SerMet: 1.494 ± 0.033
1.543SerAsn: 1.543 ± 0.035
2.743SerPro: 2.743 ± 0.038
1.784SerGln: 1.784 ± 0.034
3.804SerArg: 3.804 ± 0.054
3.389SerSer: 3.389 ± 0.055
2.922SerThr: 2.922 ± 0.049
4.298SerVal: 4.298 ± 0.053
0.767SerTrp: 0.767 ± 0.021
1.405SerTyr: 1.405 ± 0.028
0.0SerXaa: 0.0 ± 0.0
Thr
6.076ThrAla: 6.076 ± 0.066
0.411ThrCys: 0.411 ± 0.017
2.86ThrAsp: 2.86 ± 0.039
2.801ThrGlu: 2.801 ± 0.037
1.984ThrPhe: 1.984 ± 0.036
5.059ThrGly: 5.059 ± 0.074
1.016ThrHis: 1.016 ± 0.023
3.157ThrIle: 3.157 ± 0.051
1.605ThrLys: 1.605 ± 0.035
5.713ThrLeu: 5.713 ± 0.061
1.272ThrMet: 1.272 ± 0.029
1.376ThrAsn: 1.376 ± 0.035
2.984ThrPro: 2.984 ± 0.04
1.432ThrGln: 1.432 ± 0.028
3.202ThrArg: 3.202 ± 0.045
3.065ThrSer: 3.065 ± 0.053
2.922ThrThr: 2.922 ± 0.058
4.484ThrVal: 4.484 ± 0.059
0.671ThrTrp: 0.671 ± 0.02
1.232ThrTyr: 1.232 ± 0.03
0.0ThrXaa: 0.0 ± 0.0
Val
8.78ValAla: 8.78 ± 0.08
0.588ValCys: 0.588 ± 0.02
4.032ValAsp: 4.032 ± 0.053
4.469ValGlu: 4.469 ± 0.054
2.899ValPhe: 2.899 ± 0.044
5.366ValGly: 5.366 ± 0.067
1.338ValHis: 1.338 ± 0.031
4.272ValIle: 4.272 ± 0.05
2.467ValLys: 2.467 ± 0.041
7.289ValLeu: 7.289 ± 0.076
2.051ValMet: 2.051 ± 0.034
2.052ValAsn: 2.052 ± 0.037
3.531ValPro: 3.531 ± 0.047
1.963ValGln: 1.963 ± 0.034
4.558ValArg: 4.558 ± 0.041
4.788ValSer: 4.788 ± 0.056
4.663ValThr: 4.663 ± 0.063
5.949ValVal: 5.949 ± 0.075
0.857ValTrp: 0.857 ± 0.022
1.526ValTyr: 1.526 ± 0.03
0.0ValXaa: 0.0 ± 0.0
Trp
1.103TrpAla: 1.103 ± 0.029
0.137TrpCys: 0.137 ± 0.008
0.609TrpAsp: 0.609 ± 0.017
0.546TrpGlu: 0.546 ± 0.019
0.517TrpPhe: 0.517 ± 0.019
0.841TrpGly: 0.841 ± 0.025
0.297TrpHis: 0.297 ± 0.012
0.668TrpIle: 0.668 ± 0.021
0.526TrpLys: 0.526 ± 0.018
1.563TrpLeu: 1.563 ± 0.031
0.358TrpMet: 0.358 ± 0.014
0.461TrpAsn: 0.461 ± 0.016
0.633TrpPro: 0.633 ± 0.018
0.585TrpGln: 0.585 ± 0.019
1.027TrpArg: 1.027 ± 0.025
0.82TrpSer: 0.82 ± 0.023
0.736TrpThr: 0.736 ± 0.023
0.754TrpVal: 0.754 ± 0.02
0.217TrpTrp: 0.217 ± 0.012
0.293TrpTyr: 0.293 ± 0.014
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.45TyrAla: 2.45 ± 0.041
0.247TyrCys: 0.247 ± 0.011
1.419TyrAsp: 1.419 ± 0.029
1.257TyrGlu: 1.257 ± 0.028
0.975TyrPhe: 0.975 ± 0.023
2.116TyrGly: 2.116 ± 0.041
0.485TyrHis: 0.485 ± 0.017
1.023TyrIle: 1.023 ± 0.026
0.689TyrLys: 0.689 ± 0.019
2.384TyrLeu: 2.384 ± 0.038
0.474TyrMet: 0.474 ± 0.014
0.628TyrAsn: 0.628 ± 0.018
1.136TyrPro: 1.136 ± 0.028
0.779TyrGln: 0.779 ± 0.019
1.776TyrArg: 1.776 ± 0.031
1.305TyrSer: 1.305 ± 0.033
1.082TyrThr: 1.082 ± 0.026
1.669TyrVal: 1.669 ± 0.036
0.35TyrTrp: 0.35 ± 0.015
0.607TyrTyr: 0.607 ± 0.02
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 5774 proteins (1802097 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