Amino acid dipepetide frequency for Bacillus sp. HNG

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
5.08AlaAla: 5.08 ± 0.083
0.551AlaCys: 0.551 ± 0.021
3.025AlaAsp: 3.025 ± 0.044
4.278AlaGlu: 4.278 ± 0.065
3.088AlaPhe: 3.088 ± 0.058
5.023AlaGly: 5.023 ± 0.073
1.128AlaHis: 1.128 ± 0.029
5.94AlaIle: 5.94 ± 0.073
4.617AlaLys: 4.617 ± 0.065
6.63AlaLeu: 6.63 ± 0.072
1.912AlaMet: 1.912 ± 0.04
2.734AlaAsn: 2.734 ± 0.042
2.063AlaPro: 2.063 ± 0.045
1.997AlaGln: 1.997 ± 0.036
2.407AlaArg: 2.407 ± 0.042
3.713AlaSer: 3.713 ± 0.052
3.571AlaThr: 3.571 ± 0.057
4.962AlaVal: 4.962 ± 0.067
0.629AlaTrp: 0.629 ± 0.022
2.211AlaTyr: 2.211 ± 0.04
0.0AlaXaa: 0.0 ± 0.0
Cys
0.364CysAla: 0.364 ± 0.019
0.078CysCys: 0.078 ± 0.008
0.345CysAsp: 0.345 ± 0.016
0.446CysGlu: 0.446 ± 0.02
0.33CysPhe: 0.33 ± 0.018
0.656CysGly: 0.656 ± 0.025
0.211CysHis: 0.211 ± 0.012
0.508CysIle: 0.508 ± 0.02
0.389CysLys: 0.389 ± 0.019
0.645CysLeu: 0.645 ± 0.023
0.163CysMet: 0.163 ± 0.011
0.258CysAsn: 0.258 ± 0.013
0.317CysPro: 0.317 ± 0.017
0.204CysGln: 0.204 ± 0.012
0.266CysArg: 0.266 ± 0.014
0.484CysSer: 0.484 ± 0.016
0.375CysThr: 0.375 ± 0.018
0.404CysVal: 0.404 ± 0.018
0.071CysTrp: 0.071 ± 0.008
0.255CysTyr: 0.255 ± 0.013
0.0CysXaa: 0.0 ± 0.0
Asp
3.08AspAla: 3.08 ± 0.058
0.35AspCys: 0.35 ± 0.016
2.442AspAsp: 2.442 ± 0.051
4.5AspGlu: 4.5 ± 0.065
2.558AspPhe: 2.558 ± 0.043
3.42AspGly: 3.42 ± 0.056
1.128AspHis: 1.128 ± 0.034
4.237AspIle: 4.237 ± 0.059
3.165AspLys: 3.165 ± 0.052
4.967AspLeu: 4.967 ± 0.059
1.222AspMet: 1.222 ± 0.03
1.896AspAsn: 1.896 ± 0.047
1.938AspPro: 1.938 ± 0.041
1.847AspGln: 1.847 ± 0.033
2.088AspArg: 2.088 ± 0.045
2.625AspSer: 2.625 ± 0.039
2.438AspThr: 2.438 ± 0.042
3.816AspVal: 3.816 ± 0.059
0.652AspTrp: 0.652 ± 0.024
2.125AspTyr: 2.125 ± 0.037
0.0AspXaa: 0.0 ± 0.0
Glu
4.935GluAla: 4.935 ± 0.075
0.38GluCys: 0.38 ± 0.019
3.787GluAsp: 3.787 ± 0.055
6.881GluGlu: 6.881 ± 0.099
2.864GluPhe: 2.864 ± 0.05
4.439GluGly: 4.439 ± 0.053
1.5GluHis: 1.5 ± 0.033
6.174GluIle: 6.174 ± 0.072
6.815GluLys: 6.815 ± 0.074
7.116GluLeu: 7.116 ± 0.082
2.255GluMet: 2.255 ± 0.044
4.056GluAsn: 4.056 ± 0.056
2.051GluPro: 2.051 ± 0.042
3.123GluGln: 3.123 ± 0.053
3.184GluArg: 3.184 ± 0.057
3.557GluSer: 3.557 ± 0.048
3.874GluThr: 3.874 ± 0.057
5.251GluVal: 5.251 ± 0.066
0.838GluTrp: 0.838 ± 0.025
2.482GluTyr: 2.482 ± 0.042
0.0GluXaa: 0.0 ± 0.0
Phe
3.035PheAla: 3.035 ± 0.051
0.317PheCys: 0.317 ± 0.015
2.431PheAsp: 2.431 ± 0.042
3.142PheGlu: 3.142 ± 0.044
2.49PhePhe: 2.49 ± 0.054
3.528PheGly: 3.528 ± 0.058
0.992PheHis: 0.992 ± 0.029
3.997PheIle: 3.997 ± 0.066
2.625PheLys: 2.625 ± 0.046
4.94PheLeu: 4.94 ± 0.076
1.202PheMet: 1.202 ± 0.031
1.986PheAsn: 1.986 ± 0.036
1.721PhePro: 1.721 ± 0.034
1.517PheGln: 1.517 ± 0.034
1.615PheArg: 1.615 ± 0.03
3.359PheSer: 3.359 ± 0.056
2.745PheThr: 2.745 ± 0.046
3.378PheVal: 3.378 ± 0.052
0.519PheTrp: 0.519 ± 0.021
1.859PheTyr: 1.859 ± 0.042
0.0PheXaa: 0.0 ± 0.0
Gly
4.735GlyAla: 4.735 ± 0.073
0.587GlyCys: 0.587 ± 0.02
3.207GlyAsp: 3.207 ± 0.056
4.623GlyGlu: 4.623 ± 0.06
3.491GlyPhe: 3.491 ± 0.058
4.75GlyGly: 4.75 ± 0.072
1.382GlyHis: 1.382 ± 0.033
6.323GlyIle: 6.323 ± 0.077
5.06GlyLys: 5.06 ± 0.066
6.622GlyLeu: 6.622 ± 0.081
2.044GlyMet: 2.044 ± 0.04
2.987GlyAsn: 2.987 ± 0.049
1.783GlyPro: 1.783 ± 0.038
2.097GlyGln: 2.097 ± 0.042
2.57GlyArg: 2.57 ± 0.048
3.992GlySer: 3.992 ± 0.054
4.146GlyThr: 4.146 ± 0.058
5.214GlyVal: 5.214 ± 0.06
0.939GlyTrp: 0.939 ± 0.039
2.816GlyTyr: 2.816 ± 0.052
0.0GlyXaa: 0.0 ± 0.0
His
1.235HisAla: 1.235 ± 0.026
0.185HisCys: 0.185 ± 0.01
1.041HisAsp: 1.041 ± 0.029
1.455HisGlu: 1.455 ± 0.035
1.146HisPhe: 1.146 ± 0.03
1.369HisGly: 1.369 ± 0.031
0.65HisHis: 0.65 ± 0.024
1.55HisIle: 1.55 ± 0.041
1.06HisLys: 1.06 ± 0.03
2.067HisLeu: 2.067 ± 0.04
0.451HisMet: 0.451 ± 0.019
0.814HisAsn: 0.814 ± 0.026
1.149HisPro: 1.149 ± 0.031
0.78HisGln: 0.78 ± 0.021
0.852HisArg: 0.852 ± 0.025
1.238HisSer: 1.238 ± 0.032
1.109HisThr: 1.109 ± 0.031
1.443HisVal: 1.443 ± 0.035
0.215HisTrp: 0.215 ± 0.013
0.876HisTyr: 0.876 ± 0.025
0.0HisXaa: 0.0 ± 0.0
Ile
5.789IleAla: 5.789 ± 0.081
0.677IleCys: 0.677 ± 0.022
4.52IleAsp: 4.52 ± 0.066
6.145IleGlu: 6.145 ± 0.073
3.616IlePhe: 3.616 ± 0.067
6.25IleGly: 6.25 ± 0.08
1.737IleHis: 1.737 ± 0.037
6.257IleIle: 6.257 ± 0.079
4.978IleLys: 4.978 ± 0.058
7.597IleLeu: 7.597 ± 0.086
1.867IleMet: 1.867 ± 0.033
3.582IleAsn: 3.582 ± 0.06
3.509IlePro: 3.509 ± 0.054
2.928IleGln: 2.928 ± 0.05
3.049IleArg: 3.049 ± 0.047
5.331IleSer: 5.331 ± 0.066
4.625IleThr: 4.625 ± 0.05
5.851IleVal: 5.851 ± 0.082
0.725IleTrp: 0.725 ± 0.027
2.651IleTyr: 2.651 ± 0.046
0.0IleXaa: 0.0 ± 0.0
Lys
4.415LysAla: 4.415 ± 0.066
0.319LysCys: 0.319 ± 0.016
3.825LysAsp: 3.825 ± 0.054
6.838LysGlu: 6.838 ± 0.077
2.062LysPhe: 2.062 ± 0.04
4.533LysGly: 4.533 ± 0.058
1.343LysHis: 1.343 ± 0.032
4.989LysIle: 4.989 ± 0.056
5.83LysLys: 5.83 ± 0.068
5.806LysLeu: 5.806 ± 0.077
2.284LysMet: 2.284 ± 0.041
3.688LysAsn: 3.688 ± 0.058
2.228LysPro: 2.228 ± 0.044
2.986LysGln: 2.986 ± 0.047
3.234LysArg: 3.234 ± 0.055
3.554LysSer: 3.554 ± 0.054
3.564LysThr: 3.564 ± 0.054
4.957LysVal: 4.957 ± 0.066
0.873LysTrp: 0.873 ± 0.028
2.328LysTyr: 2.328 ± 0.044
0.0LysXaa: 0.0 ± 0.0
Leu
6.827LeuAla: 6.827 ± 0.084
0.643LeuCys: 0.643 ± 0.02
4.781LeuAsp: 4.781 ± 0.068
6.63LeuGlu: 6.63 ± 0.074
5.104LeuPhe: 5.104 ± 0.078
6.466LeuGly: 6.466 ± 0.079
2.06LeuHis: 2.06 ± 0.04
7.343LeuIle: 7.343 ± 0.092
6.427LeuLys: 6.427 ± 0.073
10.155LeuLeu: 10.155 ± 0.122
2.344LeuMet: 2.344 ± 0.041
4.12LeuAsn: 4.12 ± 0.065
3.873LeuPro: 3.873 ± 0.052
3.579LeuGln: 3.579 ± 0.057
3.524LeuArg: 3.524 ± 0.058
6.598LeuSer: 6.598 ± 0.076
5.603LeuThr: 5.603 ± 0.059
6.515LeuVal: 6.515 ± 0.079
0.831LeuTrp: 0.831 ± 0.029
3.277LeuTyr: 3.277 ± 0.051
0.0LeuXaa: 0.0 ± 0.0
Met
1.843MetAla: 1.843 ± 0.041
0.143MetCys: 0.143 ± 0.011
1.422MetAsp: 1.422 ± 0.033
1.889MetGlu: 1.889 ± 0.038
1.072MetPhe: 1.072 ± 0.029
1.81MetGly: 1.81 ± 0.036
0.42MetHis: 0.42 ± 0.019
2.181MetIle: 2.181 ± 0.045
2.431MetLys: 2.431 ± 0.038
2.408MetLeu: 2.408 ± 0.042
0.807MetMet: 0.807 ± 0.028
1.565MetAsn: 1.565 ± 0.032
0.91MetPro: 0.91 ± 0.023
0.813MetGln: 0.813 ± 0.028
0.961MetArg: 0.961 ± 0.027
1.634MetSer: 1.634 ± 0.035
1.597MetThr: 1.597 ± 0.035
1.832MetVal: 1.832 ± 0.036
0.191MetTrp: 0.191 ± 0.014
0.826MetTyr: 0.826 ± 0.025
0.0MetXaa: 0.0 ± 0.0
Asn
2.683AsnAla: 2.683 ± 0.044
0.283AsnCys: 0.283 ± 0.016
2.323AsnAsp: 2.323 ± 0.047
3.87AsnGlu: 3.87 ± 0.056
1.735AsnPhe: 1.735 ± 0.041
3.631AsnGly: 3.631 ± 0.06
1.096AsnHis: 1.096 ± 0.03
3.448AsnIle: 3.448 ± 0.058
3.102AsnLys: 3.102 ± 0.052
4.096AsnLeu: 4.096 ± 0.062
1.193AsnMet: 1.193 ± 0.028
2.142AsnAsn: 2.142 ± 0.05
2.285AsnPro: 2.285 ± 0.043
2.112AsnGln: 2.112 ± 0.047
2.115AsnArg: 2.115 ± 0.045
2.45AsnSer: 2.45 ± 0.045
2.28AsnThr: 2.28 ± 0.044
3.207AsnVal: 3.207 ± 0.047
0.588AsnTrp: 0.588 ± 0.021
1.586AsnTyr: 1.586 ± 0.036
0.0AsnXaa: 0.0 ± 0.0
Pro
2.073ProAla: 2.073 ± 0.044
0.187ProCys: 0.187 ± 0.012
2.014ProAsp: 2.014 ± 0.042
2.978ProGlu: 2.978 ± 0.05
2.072ProPhe: 2.072 ± 0.039
2.363ProGly: 2.363 ± 0.048
0.79ProHis: 0.79 ± 0.026
2.998ProIle: 2.998 ± 0.055
2.264ProLys: 2.264 ± 0.04
3.43ProLeu: 3.43 ± 0.046
0.844ProMet: 0.844 ± 0.029
1.835ProAsn: 1.835 ± 0.037
1.006ProPro: 1.006 ± 0.035
1.14ProGln: 1.14 ± 0.029
1.074ProArg: 1.074 ± 0.032
2.299ProSer: 2.299 ± 0.037
2.23ProThr: 2.23 ± 0.044
2.773ProVal: 2.773 ± 0.047
0.378ProTrp: 0.378 ± 0.018
1.461ProTyr: 1.461 ± 0.032
0.0ProXaa: 0.0 ± 0.0
Gln
2.446GlnAla: 2.446 ± 0.044
0.176GlnCys: 0.176 ± 0.01
1.65GlnAsp: 1.65 ± 0.035
2.788GlnGlu: 2.788 ± 0.052
1.637GlnPhe: 1.637 ± 0.032
2.093GlnGly: 2.093 ± 0.04
0.747GlnHis: 0.747 ± 0.022
2.784GlnIle: 2.784 ± 0.053
2.691GlnLys: 2.691 ± 0.048
3.683GlnLeu: 3.683 ± 0.056
1.075GlnMet: 1.075 ± 0.03
1.725GlnAsn: 1.725 ± 0.038
1.185GlnPro: 1.185 ± 0.03
1.611GlnGln: 1.611 ± 0.044
1.336GlnArg: 1.336 ± 0.033
2.016GlnSer: 2.016 ± 0.041
2.004GlnThr: 2.004 ± 0.038
2.366GlnVal: 2.366 ± 0.042
0.386GlnTrp: 0.386 ± 0.019
1.3GlnTyr: 1.3 ± 0.035
0.0GlnXaa: 0.0 ± 0.0
Arg
2.243ArgAla: 2.243 ± 0.043
0.245ArgCys: 0.245 ± 0.015
1.98ArgAsp: 1.98 ± 0.039
2.997ArgGlu: 2.997 ± 0.048
1.936ArgPhe: 1.936 ± 0.037
2.274ArgGly: 2.274 ± 0.041
0.753ArgHis: 0.753 ± 0.025
3.157ArgIle: 3.157 ± 0.052
3.07ArgLys: 3.07 ± 0.048
3.726ArgLeu: 3.726 ± 0.054
1.159ArgMet: 1.159 ± 0.03
2.026ArgAsn: 2.026 ± 0.034
1.271ArgPro: 1.271 ± 0.03
1.345ArgGln: 1.345 ± 0.037
1.695ArgArg: 1.695 ± 0.044
2.064ArgSer: 2.064 ± 0.037
1.986ArgThr: 1.986 ± 0.035
2.585ArgVal: 2.585 ± 0.049
0.398ArgTrp: 0.398 ± 0.015
1.521ArgTyr: 1.521 ± 0.038
0.0ArgXaa: 0.0 ± 0.0
Ser
3.465SerAla: 3.465 ± 0.053
0.37SerCys: 0.37 ± 0.017
2.84SerAsp: 2.84 ± 0.045
3.889SerGlu: 3.889 ± 0.063
3.39SerPhe: 3.39 ± 0.048
4.358SerGly: 4.358 ± 0.058
1.205SerHis: 1.205 ± 0.028
5.374SerIle: 5.374 ± 0.071
3.967SerLys: 3.967 ± 0.042
6.022SerLeu: 6.022 ± 0.069
1.62SerMet: 1.62 ± 0.035
2.734SerAsn: 2.734 ± 0.05
2.166SerPro: 2.166 ± 0.042
1.909SerGln: 1.909 ± 0.033
2.111SerArg: 2.111 ± 0.038
3.825SerSer: 3.825 ± 0.062
3.251SerThr: 3.251 ± 0.055
4.104SerVal: 4.104 ± 0.053
0.651SerTrp: 0.651 ± 0.023
2.254SerTyr: 2.254 ± 0.034
0.0SerXaa: 0.0 ± 0.0
Thr
3.671ThrAla: 3.671 ± 0.065
0.337ThrCys: 0.337 ± 0.017
2.616ThrAsp: 2.616 ± 0.045
3.642ThrGlu: 3.642 ± 0.05
2.842ThrPhe: 2.842 ± 0.045
4.17ThrGly: 4.17 ± 0.072
1.098ThrHis: 1.098 ± 0.029
4.967ThrIle: 4.967 ± 0.063
3.511ThrLys: 3.511 ± 0.049
5.338ThrLeu: 5.338 ± 0.062
1.257ThrMet: 1.257 ± 0.03
2.711ThrAsn: 2.711 ± 0.042
2.326ThrPro: 2.326 ± 0.044
1.555ThrGln: 1.555 ± 0.038
1.822ThrArg: 1.822 ± 0.035
3.331ThrSer: 3.331 ± 0.051
3.091ThrThr: 3.091 ± 0.051
4.194ThrVal: 4.194 ± 0.06
0.561ThrTrp: 0.561 ± 0.021
2.102ThrTyr: 2.102 ± 0.046
0.0ThrXaa: 0.0 ± 0.0
Val
4.994ValAla: 4.994 ± 0.068
0.526ValCys: 0.526 ± 0.019
3.716ValAsp: 3.716 ± 0.056
5.209ValGlu: 5.209 ± 0.068
3.382ValPhe: 3.382 ± 0.053
4.976ValGly: 4.976 ± 0.068
1.363ValHis: 1.363 ± 0.033
5.9ValIle: 5.9 ± 0.079
4.688ValLys: 4.688 ± 0.056
6.857ValLeu: 6.857 ± 0.074
1.826ValMet: 1.826 ± 0.034
3.243ValAsn: 3.243 ± 0.049
2.721ValPro: 2.721 ± 0.038
2.222ValGln: 2.222 ± 0.042
2.555ValArg: 2.555 ± 0.05
4.593ValSer: 4.593 ± 0.059
4.205ValThr: 4.205 ± 0.069
5.257ValVal: 5.257 ± 0.068
0.653ValTrp: 0.653 ± 0.024
2.318ValTyr: 2.318 ± 0.047
0.0ValXaa: 0.0 ± 0.0
Trp
0.614TrpAla: 0.614 ± 0.021
0.094TrpCys: 0.094 ± 0.009
0.568TrpAsp: 0.568 ± 0.024
0.709TrpGlu: 0.709 ± 0.028
0.531TrpPhe: 0.531 ± 0.025
0.717TrpGly: 0.717 ± 0.026
0.198TrpHis: 0.198 ± 0.012
0.894TrpIle: 0.894 ± 0.027
0.738TrpLys: 0.738 ± 0.026
1.08TrpLeu: 1.08 ± 0.034
0.339TrpMet: 0.339 ± 0.016
0.589TrpAsn: 0.589 ± 0.023
0.253TrpPro: 0.253 ± 0.014
0.383TrpGln: 0.383 ± 0.018
0.389TrpArg: 0.389 ± 0.017
0.611TrpSer: 0.611 ± 0.021
0.555TrpThr: 0.555 ± 0.024
0.729TrpVal: 0.729 ± 0.026
0.144TrpTrp: 0.144 ± 0.009
0.497TrpTyr: 0.497 ± 0.033
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.033TyrAla: 2.033 ± 0.043
0.323TyrCys: 0.323 ± 0.016
1.964TyrAsp: 1.964 ± 0.04
2.651TyrGlu: 2.651 ± 0.048
2.05TyrPhe: 2.05 ± 0.041
2.54TyrGly: 2.54 ± 0.044
0.884TyrHis: 0.884 ± 0.026
2.659TyrIle: 2.659 ± 0.049
2.228TyrLys: 2.228 ± 0.05
3.513TyrLeu: 3.513 ± 0.051
0.892TyrMet: 0.892 ± 0.025
1.533TyrAsn: 1.533 ± 0.039
1.455TyrPro: 1.455 ± 0.031
1.551TyrGln: 1.551 ± 0.038
1.586TyrArg: 1.586 ± 0.036
2.231TyrSer: 2.231 ± 0.041
1.892TyrThr: 1.892 ± 0.042
2.367TyrVal: 2.367 ± 0.043
0.391TyrTrp: 0.391 ± 0.019
1.591TyrTyr: 1.591 ± 0.04
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 4747 proteins (1377384 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