Amino acid dipepetide frequency for Novosphingobium sp. P6W

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
18.57AlaAla: 18.57 ± 0.147
1.116AlaCys: 1.116 ± 0.028
7.336AlaAsp: 7.336 ± 0.068
7.041AlaGlu: 7.041 ± 0.072
4.436AlaPhe: 4.436 ± 0.05
11.58AlaGly: 11.58 ± 0.105
2.423AlaHis: 2.423 ± 0.039
6.383AlaIle: 6.383 ± 0.058
3.971AlaLys: 3.971 ± 0.062
13.785AlaLeu: 13.785 ± 0.114
3.905AlaMet: 3.905 ± 0.054
3.135AlaAsn: 3.135 ± 0.043
6.43AlaPro: 6.43 ± 0.073
4.849AlaGln: 4.849 ± 0.059
9.377AlaArg: 9.377 ± 0.098
7.126AlaSer: 7.126 ± 0.074
6.024AlaThr: 6.024 ± 0.065
8.758AlaVal: 8.758 ± 0.081
1.73AlaTrp: 1.73 ± 0.034
2.679AlaTyr: 2.679 ± 0.039
0.0AlaXaa: 0.0 ± 0.0
Cys
1.041CysAla: 1.041 ± 0.021
0.092CysCys: 0.092 ± 0.007
0.54CysAsp: 0.54 ± 0.019
0.472CysGlu: 0.472 ± 0.017
0.276CysPhe: 0.276 ± 0.012
0.921CysGly: 0.921 ± 0.023
0.216CysHis: 0.216 ± 0.011
0.374CysIle: 0.374 ± 0.015
0.174CysLys: 0.174 ± 0.01
0.743CysLeu: 0.743 ± 0.021
0.172CysMet: 0.172 ± 0.009
0.225CysAsn: 0.225 ± 0.012
0.441CysPro: 0.441 ± 0.017
0.206CysGln: 0.206 ± 0.01
0.629CysArg: 0.629 ± 0.018
0.474CysSer: 0.474 ± 0.02
0.427CysThr: 0.427 ± 0.017
0.586CysVal: 0.586 ± 0.018
0.126CysTrp: 0.126 ± 0.008
0.177CysTyr: 0.177 ± 0.011
0.0CysXaa: 0.0 ± 0.0
Asp
7.411AspAla: 7.411 ± 0.06
0.477AspCys: 0.477 ± 0.016
3.173AspAsp: 3.173 ± 0.044
3.307AspGlu: 3.307 ± 0.049
2.283AspPhe: 2.283 ± 0.037
5.466AspGly: 5.466 ± 0.066
1.302AspHis: 1.302 ± 0.028
2.876AspIle: 2.876 ± 0.042
1.765AspLys: 1.765 ± 0.035
5.784AspLeu: 5.784 ± 0.057
1.375AspMet: 1.375 ± 0.026
1.403AspAsn: 1.403 ± 0.033
3.562AspPro: 3.562 ± 0.045
1.705AspGln: 1.705 ± 0.029
4.458AspArg: 4.458 ± 0.056
2.233AspSer: 2.233 ± 0.034
2.86AspThr: 2.86 ± 0.043
4.151AspVal: 4.151 ± 0.044
1.142AspTrp: 1.142 ± 0.024
1.646AspTyr: 1.646 ± 0.031
0.0AspXaa: 0.0 ± 0.0
Glu
7.572GluAla: 7.572 ± 0.087
0.345GluCys: 0.345 ± 0.014
2.839GluAsp: 2.839 ± 0.047
2.753GluGlu: 2.753 ± 0.049
1.652GluPhe: 1.652 ± 0.03
4.512GluGly: 4.512 ± 0.058
1.189GluHis: 1.189 ± 0.028
2.862GluIle: 2.862 ± 0.044
1.864GluLys: 1.864 ± 0.035
4.864GluLeu: 4.864 ± 0.059
1.409GluMet: 1.409 ± 0.033
1.476GluAsn: 1.476 ± 0.029
2.52GluPro: 2.52 ± 0.038
2.019GluGln: 2.019 ± 0.033
4.707GluArg: 4.707 ± 0.062
2.19GluSer: 2.19 ± 0.037
3.165GluThr: 3.165 ± 0.039
3.711GluVal: 3.711 ± 0.053
0.847GluTrp: 0.847 ± 0.022
1.027GluTyr: 1.027 ± 0.023
0.0GluXaa: 0.0 ± 0.0
Phe
4.99PheAla: 4.99 ± 0.048
0.357PheCys: 0.357 ± 0.014
2.665PheAsp: 2.665 ± 0.042
2.098PheGlu: 2.098 ± 0.03
1.218PhePhe: 1.218 ± 0.028
3.674PheGly: 3.674 ± 0.055
0.782PheHis: 0.782 ± 0.02
1.381PheIle: 1.381 ± 0.029
0.881PheLys: 0.881 ± 0.023
3.079PheLeu: 3.079 ± 0.04
0.772PheMet: 0.772 ± 0.022
1.085PheAsn: 1.085 ± 0.028
1.535PhePro: 1.535 ± 0.029
0.954PheGln: 0.954 ± 0.021
2.169PheArg: 2.169 ± 0.036
2.179PheSer: 2.179 ± 0.033
2.151PheThr: 2.151 ± 0.034
2.623PheVal: 2.623 ± 0.045
0.528PheTrp: 0.528 ± 0.018
0.943PheTyr: 0.943 ± 0.023
0.0PheXaa: 0.0 ± 0.0
Gly
10.213GlyAla: 10.213 ± 0.087
0.834GlyCys: 0.834 ± 0.023
4.813GlyAsp: 4.813 ± 0.062
4.884GlyGlu: 4.884 ± 0.057
3.694GlyPhe: 3.694 ± 0.048
8.203GlyGly: 8.203 ± 0.103
1.862GlyHis: 1.862 ± 0.034
4.508GlyIle: 4.508 ± 0.058
3.401GlyLys: 3.401 ± 0.049
8.837GlyLeu: 8.837 ± 0.072
2.402GlyMet: 2.402 ± 0.035
2.5GlyAsn: 2.5 ± 0.055
3.803GlyPro: 3.803 ± 0.045
3.013GlyGln: 3.013 ± 0.044
6.28GlyArg: 6.28 ± 0.061
5.347GlySer: 5.347 ± 0.073
5.171GlyThr: 5.171 ± 0.085
6.292GlyVal: 6.292 ± 0.073
1.602GlyTrp: 1.602 ± 0.03
2.525GlyTyr: 2.525 ± 0.04
0.0GlyXaa: 0.0 ± 0.0
His
2.459HisAla: 2.459 ± 0.04
0.237HisCys: 0.237 ± 0.014
1.257HisAsp: 1.257 ± 0.029
1.085HisGlu: 1.085 ± 0.026
0.854HisPhe: 0.854 ± 0.02
1.979HisGly: 1.979 ± 0.035
0.553HisHis: 0.553 ± 0.02
0.901HisIle: 0.901 ± 0.02
0.48HisLys: 0.48 ± 0.016
1.921HisLeu: 1.921 ± 0.036
0.476HisMet: 0.476 ± 0.016
0.44HisAsn: 0.44 ± 0.018
1.292HisPro: 1.292 ± 0.024
0.553HisGln: 0.553 ± 0.016
1.484HisArg: 1.484 ± 0.03
1.019HisSer: 1.019 ± 0.025
0.791HisThr: 0.791 ± 0.024
1.515HisVal: 1.515 ± 0.031
0.34HisTrp: 0.34 ± 0.014
0.603HisTyr: 0.603 ± 0.019
0.0HisXaa: 0.0 ± 0.0
Ile
7.525IleAla: 7.525 ± 0.072
0.446IleCys: 0.446 ± 0.015
3.755IleAsp: 3.755 ± 0.045
3.468IleGlu: 3.468 ± 0.05
1.41IlePhe: 1.41 ± 0.031
4.844IleGly: 4.844 ± 0.053
0.856IleHis: 0.856 ± 0.022
1.786IleIle: 1.786 ± 0.033
1.192IleLys: 1.192 ± 0.023
3.774IleLeu: 3.774 ± 0.056
0.856IleMet: 0.856 ± 0.023
1.33IleAsn: 1.33 ± 0.03
2.218IlePro: 2.218 ± 0.033
1.133IleGln: 1.133 ± 0.024
2.984IleArg: 2.984 ± 0.04
2.78IleSer: 2.78 ± 0.041
2.584IleThr: 2.584 ± 0.042
3.948IleVal: 3.948 ± 0.053
0.603IleTrp: 0.603 ± 0.02
1.011IleTyr: 1.011 ± 0.02
0.0IleXaa: 0.0 ± 0.0
Lys
4.144LysAla: 4.144 ± 0.051
0.151LysCys: 0.151 ± 0.01
1.547LysAsp: 1.547 ± 0.032
1.18LysGlu: 1.18 ± 0.032
0.879LysPhe: 0.879 ± 0.023
2.77LysGly: 2.77 ± 0.043
0.545LysHis: 0.545 ± 0.018
1.39LysIle: 1.39 ± 0.029
0.934LysLys: 0.934 ± 0.029
3.045LysLeu: 3.045 ± 0.046
0.68LysMet: 0.68 ± 0.021
0.718LysAsn: 0.718 ± 0.022
1.956LysPro: 1.956 ± 0.039
0.913LysGln: 0.913 ± 0.021
2.119LysArg: 2.119 ± 0.037
1.636LysSer: 1.636 ± 0.033
1.657LysThr: 1.657 ± 0.029
2.322LysVal: 2.322 ± 0.038
0.388LysTrp: 0.388 ± 0.013
0.606LysTyr: 0.606 ± 0.018
0.0LysXaa: 0.0 ± 0.0
Leu
13.938LeuAla: 13.938 ± 0.115
0.872LeuCys: 0.872 ± 0.023
6.057LeuAsp: 6.057 ± 0.058
4.922LeuGlu: 4.922 ± 0.056
3.436LeuPhe: 3.436 ± 0.047
8.593LeuGly: 8.593 ± 0.074
1.84LeuHis: 1.84 ± 0.029
4.417LeuIle: 4.417 ± 0.055
2.896LeuLys: 2.896 ± 0.042
9.095LeuLeu: 9.095 ± 0.101
2.102LeuMet: 2.102 ± 0.037
2.403LeuAsn: 2.403 ± 0.034
5.583LeuPro: 5.583 ± 0.056
2.613LeuGln: 2.613 ± 0.043
6.972LeuArg: 6.972 ± 0.067
6.227LeuSer: 6.227 ± 0.056
5.66LeuThr: 5.66 ± 0.054
7.256LeuVal: 7.256 ± 0.075
1.173LeuTrp: 1.173 ± 0.029
1.97LeuTyr: 1.97 ± 0.034
0.0LeuXaa: 0.0 ± 0.0
Met
3.306MetAla: 3.306 ± 0.053
0.16MetCys: 0.16 ± 0.009
1.108MetAsp: 1.108 ± 0.023
1.064MetGlu: 1.064 ± 0.025
0.685MetPhe: 0.685 ± 0.019
1.913MetGly: 1.913 ± 0.036
0.445MetHis: 0.445 ± 0.016
1.337MetIle: 1.337 ± 0.026
0.866MetLys: 0.866 ± 0.018
2.583MetLeu: 2.583 ± 0.043
0.684MetMet: 0.684 ± 0.021
0.69MetAsn: 0.69 ± 0.02
1.558MetPro: 1.558 ± 0.031
0.74MetGln: 0.74 ± 0.021
1.815MetArg: 1.815 ± 0.033
1.46MetSer: 1.46 ± 0.029
1.784MetThr: 1.784 ± 0.032
1.668MetVal: 1.668 ± 0.028
0.209MetTrp: 0.209 ± 0.01
0.268MetTyr: 0.268 ± 0.012
0.0MetXaa: 0.0 ± 0.0
Asn
3.31AsnAla: 3.31 ± 0.049
0.244AsnCys: 0.244 ± 0.012
1.468AsnAsp: 1.468 ± 0.035
1.158AsnGlu: 1.158 ± 0.027
1.012AsnPhe: 1.012 ± 0.026
2.563AsnGly: 2.563 ± 0.051
0.492AsnHis: 0.492 ± 0.019
1.243AsnIle: 1.243 ± 0.026
0.63AsnLys: 0.63 ± 0.018
2.581AsnLeu: 2.581 ± 0.041
0.555AsnMet: 0.555 ± 0.016
0.747AsnAsn: 0.747 ± 0.024
1.755AsnPro: 1.755 ± 0.033
0.724AsnGln: 0.724 ± 0.022
1.82AsnArg: 1.82 ± 0.028
1.363AsnSer: 1.363 ± 0.033
1.292AsnThr: 1.292 ± 0.031
2.031AsnVal: 2.031 ± 0.04
0.455AsnTrp: 0.455 ± 0.017
0.76AsnTyr: 0.76 ± 0.023
0.0AsnXaa: 0.0 ± 0.0
Pro
7.086ProAla: 7.086 ± 0.079
0.365ProCys: 0.365 ± 0.015
3.469ProAsp: 3.469 ± 0.044
3.502ProGlu: 3.502 ± 0.042
1.942ProPhe: 1.942 ± 0.032
5.016ProGly: 5.016 ± 0.061
1.05ProHis: 1.05 ± 0.022
2.333ProIle: 2.333 ± 0.034
1.478ProLys: 1.478 ± 0.036
4.934ProLeu: 4.934 ± 0.052
1.226ProMet: 1.226 ± 0.028
1.235ProAsn: 1.235 ± 0.028
2.434ProPro: 2.434 ± 0.047
1.814ProGln: 1.814 ± 0.035
3.156ProArg: 3.156 ± 0.043
2.927ProSer: 2.927 ± 0.039
2.442ProThr: 2.442 ± 0.041
4.273ProVal: 4.273 ± 0.052
0.726ProTrp: 0.726 ± 0.017
1.076ProTyr: 1.076 ± 0.028
0.0ProXaa: 0.0 ± 0.0
Gln
4.183GlnAla: 4.183 ± 0.057
0.248GlnCys: 0.248 ± 0.013
1.584GlnAsp: 1.584 ± 0.031
1.333GlnGlu: 1.333 ± 0.026
1.152GlnPhe: 1.152 ± 0.026
2.765GlnGly: 2.765 ± 0.043
0.636GlnHis: 0.636 ± 0.017
1.746GlnIle: 1.746 ± 0.033
0.884GlnLys: 0.884 ± 0.022
3.03GlnLeu: 3.03 ± 0.041
0.814GlnMet: 0.814 ± 0.022
0.796GlnAsn: 0.796 ± 0.022
1.776GlnPro: 1.776 ± 0.033
1.183GlnGln: 1.183 ± 0.029
2.408GlnArg: 2.408 ± 0.042
1.805GlnSer: 1.805 ± 0.033
1.68GlnThr: 1.68 ± 0.031
2.558GlnVal: 2.558 ± 0.038
0.508GlnTrp: 0.508 ± 0.017
0.663GlnTyr: 0.663 ± 0.023
0.0GlnXaa: 0.0 ± 0.0
Arg
8.167ArgAla: 8.167 ± 0.074
0.524ArgCys: 0.524 ± 0.018
4.077ArgAsp: 4.077 ± 0.055
4.171ArgGlu: 4.171 ± 0.058
3.095ArgPhe: 3.095 ± 0.043
5.162ArgGly: 5.162 ± 0.057
1.669ArgHis: 1.669 ± 0.032
4.129ArgIle: 4.129 ± 0.05
2.153ArgLys: 2.153 ± 0.039
7.708ArgLeu: 7.708 ± 0.072
1.899ArgMet: 1.899 ± 0.031
1.818ArgAsn: 1.818 ± 0.027
3.457ArgPro: 3.457 ± 0.043
2.495ArgGln: 2.495 ± 0.041
5.733ArgArg: 5.733 ± 0.077
4.033ArgSer: 4.033 ± 0.048
3.659ArgThr: 3.659 ± 0.042
4.659ArgVal: 4.659 ± 0.047
1.211ArgTrp: 1.211 ± 0.031
2.009ArgTyr: 2.009 ± 0.032
0.0ArgXaa: 0.0 ± 0.0
Ser
6.952SerAla: 6.952 ± 0.072
0.449SerCys: 0.449 ± 0.016
3.195SerAsp: 3.195 ± 0.044
2.688SerGlu: 2.688 ± 0.042
2.199SerPhe: 2.199 ± 0.037
5.833SerGly: 5.833 ± 0.067
1.079SerHis: 1.079 ± 0.024
2.689SerIle: 2.689 ± 0.039
1.501SerLys: 1.501 ± 0.029
5.549SerLeu: 5.549 ± 0.06
1.272SerMet: 1.272 ± 0.027
1.433SerAsn: 1.433 ± 0.031
2.991SerPro: 2.991 ± 0.041
1.757SerGln: 1.757 ± 0.031
3.854SerArg: 3.854 ± 0.048
3.159SerSer: 3.159 ± 0.048
2.863SerThr: 2.863 ± 0.046
4.002SerVal: 4.002 ± 0.06
0.841SerTrp: 0.841 ± 0.023
1.537SerTyr: 1.537 ± 0.034
0.0SerXaa: 0.0 ± 0.0
Thr
6.597ThrAla: 6.597 ± 0.066
0.431ThrCys: 0.431 ± 0.018
2.887ThrAsp: 2.887 ± 0.039
2.269ThrGlu: 2.269 ± 0.035
1.963ThrPhe: 1.963 ± 0.033
5.559ThrGly: 5.559 ± 0.067
0.925ThrHis: 0.925 ± 0.022
2.872ThrIle: 2.872 ± 0.046
1.273ThrLys: 1.273 ± 0.026
5.72ThrLeu: 5.72 ± 0.063
1.207ThrMet: 1.207 ± 0.027
1.378ThrAsn: 1.378 ± 0.033
3.387ThrPro: 3.387 ± 0.049
1.609ThrGln: 1.609 ± 0.03
3.472ThrArg: 3.472 ± 0.038
3.049ThrSer: 3.049 ± 0.05
2.785ThrThr: 2.785 ± 0.05
4.343ThrVal: 4.343 ± 0.062
0.711ThrTrp: 0.711 ± 0.019
1.306ThrTyr: 1.306 ± 0.032
0.0ThrXaa: 0.0 ± 0.0
Val
8.962ValAla: 8.962 ± 0.09
0.602ValCys: 0.602 ± 0.018
4.285ValAsp: 4.285 ± 0.054
4.303ValGlu: 4.303 ± 0.052
2.389ValPhe: 2.389 ± 0.033
5.555ValGly: 5.555 ± 0.07
1.471ValHis: 1.471 ± 0.028
3.73ValIle: 3.73 ± 0.053
2.057ValLys: 2.057 ± 0.035
7.032ValLeu: 7.032 ± 0.063
1.728ValMet: 1.728 ± 0.031
2.176ValAsn: 2.176 ± 0.04
3.973ValPro: 3.973 ± 0.046
2.121ValGln: 2.121 ± 0.031
5.108ValArg: 5.108 ± 0.05
4.543ValSer: 4.543 ± 0.056
4.699ValThr: 4.699 ± 0.058
5.398ValVal: 5.398 ± 0.055
0.874ValTrp: 0.874 ± 0.023
1.466ValTyr: 1.466 ± 0.029
0.0ValXaa: 0.0 ± 0.0
Trp
1.437TrpAla: 1.437 ± 0.032
0.134TrpCys: 0.134 ± 0.009
0.746TrpAsp: 0.746 ± 0.023
0.575TrpGlu: 0.575 ± 0.017
0.58TrpPhe: 0.58 ± 0.019
1.002TrpGly: 1.002 ± 0.024
0.396TrpHis: 0.396 ± 0.014
0.693TrpIle: 0.693 ± 0.02
0.525TrpLys: 0.525 ± 0.017
1.791TrpLeu: 1.791 ± 0.033
0.38TrpMet: 0.38 ± 0.014
0.522TrpAsn: 0.522 ± 0.015
0.721TrpPro: 0.721 ± 0.021
0.629TrpGln: 0.629 ± 0.017
1.331TrpArg: 1.331 ± 0.031
0.944TrpSer: 0.944 ± 0.023
0.863TrpThr: 0.863 ± 0.021
0.809TrpVal: 0.809 ± 0.02
0.241TrpTrp: 0.241 ± 0.014
0.299TrpTyr: 0.299 ± 0.013
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.788TyrAla: 2.788 ± 0.043
0.227TyrCys: 0.227 ± 0.011
1.578TyrAsp: 1.578 ± 0.032
1.251TyrGlu: 1.251 ± 0.03
0.909TyrPhe: 0.909 ± 0.025
2.274TyrGly: 2.274 ± 0.043
0.508TyrHis: 0.508 ± 0.018
0.852TyrIle: 0.852 ± 0.022
0.653TyrLys: 0.653 ± 0.019
2.17TyrLeu: 2.17 ± 0.032
0.428TyrMet: 0.428 ± 0.014
0.694TyrAsn: 0.694 ± 0.022
1.092TyrPro: 1.092 ± 0.027
0.723TyrGln: 0.723 ± 0.02
1.953TyrArg: 1.953 ± 0.034
1.35TyrSer: 1.35 ± 0.03
1.187TyrThr: 1.187 ± 0.028
1.568TyrVal: 1.568 ± 0.029
0.368TyrTrp: 0.368 ± 0.014
0.681TyrTyr: 0.681 ± 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 5625 proteins (1878612 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