Amino acid dipepetide frequency for Bacillus sp. 1NLA3E

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
5.285AlaAla: 5.285 ± 0.131
0.644AlaCys: 0.644 ± 0.025
3.12AlaAsp: 3.12 ± 0.052
4.41AlaGlu: 4.41 ± 0.065
3.097AlaPhe: 3.097 ± 0.061
5.079AlaGly: 5.079 ± 0.076
1.178AlaHis: 1.178 ± 0.029
5.872AlaIle: 5.872 ± 0.075
4.775AlaLys: 4.775 ± 0.069
6.737AlaLeu: 6.737 ± 0.074
1.93AlaMet: 1.93 ± 0.038
2.936AlaAsn: 2.936 ± 0.049
1.92AlaPro: 1.92 ± 0.044
2.109AlaGln: 2.109 ± 0.047
2.534AlaArg: 2.534 ± 0.051
3.845AlaSer: 3.845 ± 0.065
3.469AlaThr: 3.469 ± 0.052
5.142AlaVal: 5.142 ± 0.104
0.562AlaTrp: 0.562 ± 0.022
2.08AlaTyr: 2.08 ± 0.04
0.0AlaXaa: 0.0 ± 0.0
Cys
0.463CysAla: 0.463 ± 0.021
0.118CysCys: 0.118 ± 0.011
0.418CysAsp: 0.418 ± 0.021
0.482CysGlu: 0.482 ± 0.02
0.401CysPhe: 0.401 ± 0.021
0.782CysGly: 0.782 ± 0.025
0.296CysHis: 0.296 ± 0.024
0.563CysIle: 0.563 ± 0.022
0.455CysLys: 0.455 ± 0.021
0.77CysLeu: 0.77 ± 0.028
0.193CysMet: 0.193 ± 0.012
0.353CysAsn: 0.353 ± 0.017
0.431CysPro: 0.431 ± 0.017
0.288CysGln: 0.288 ± 0.014
0.291CysArg: 0.291 ± 0.015
0.588CysSer: 0.588 ± 0.026
0.438CysThr: 0.438 ± 0.02
0.451CysVal: 0.451 ± 0.021
0.081CysTrp: 0.081 ± 0.008
0.273CysTyr: 0.273 ± 0.016
0.0CysXaa: 0.0 ± 0.0
Asp
3.01AspAla: 3.01 ± 0.056
0.401AspCys: 0.401 ± 0.019
2.276AspAsp: 2.276 ± 0.042
3.855AspGlu: 3.855 ± 0.061
2.559AspPhe: 2.559 ± 0.047
3.198AspGly: 3.198 ± 0.062
1.207AspHis: 1.207 ± 0.033
4.135AspIle: 4.135 ± 0.063
3.185AspLys: 3.185 ± 0.058
5.099AspLeu: 5.099 ± 0.078
1.232AspMet: 1.232 ± 0.032
1.785AspAsn: 1.785 ± 0.037
1.982AspPro: 1.982 ± 0.042
2.05AspGln: 2.05 ± 0.037
2.198AspArg: 2.198 ± 0.041
2.676AspSer: 2.676 ± 0.041
2.33AspThr: 2.33 ± 0.05
3.43AspVal: 3.43 ± 0.053
0.642AspTrp: 0.642 ± 0.021
2.043AspTyr: 2.043 ± 0.039
0.0AspXaa: 0.0 ± 0.0
Glu
4.788GluAla: 4.788 ± 0.071
0.47GluCys: 0.47 ± 0.019
3.341GluAsp: 3.341 ± 0.053
5.777GluGlu: 5.777 ± 0.088
2.698GluPhe: 2.698 ± 0.053
3.965GluGly: 3.965 ± 0.054
1.298GluHis: 1.298 ± 0.032
5.973GluIle: 5.973 ± 0.076
6.602GluLys: 6.602 ± 0.086
6.88GluLeu: 6.88 ± 0.087
2.249GluMet: 2.249 ± 0.045
3.772GluAsn: 3.772 ± 0.054
1.775GluPro: 1.775 ± 0.042
3.038GluGln: 3.038 ± 0.053
3.118GluArg: 3.118 ± 0.058
3.353GluSer: 3.353 ± 0.053
3.61GluThr: 3.61 ± 0.053
4.803GluVal: 4.803 ± 0.069
0.719GluTrp: 0.719 ± 0.023
2.232GluTyr: 2.232 ± 0.044
0.0GluXaa: 0.0 ± 0.0
Phe
3.082PheAla: 3.082 ± 0.058
0.422PheCys: 0.422 ± 0.019
2.324PheAsp: 2.324 ± 0.044
2.979PheGlu: 2.979 ± 0.048
2.599PhePhe: 2.599 ± 0.055
3.544PheGly: 3.544 ± 0.054
1.001PheHis: 1.001 ± 0.029
4.074PheIle: 4.074 ± 0.062
2.629PheLys: 2.629 ± 0.047
4.965PheLeu: 4.965 ± 0.084
1.178PheMet: 1.178 ± 0.032
1.996PheAsn: 1.996 ± 0.037
1.777PhePro: 1.777 ± 0.044
1.665PheGln: 1.665 ± 0.039
1.598PheArg: 1.598 ± 0.034
3.51PheSer: 3.51 ± 0.054
2.521PheThr: 2.521 ± 0.052
3.189PheVal: 3.189 ± 0.052
0.476PheTrp: 0.476 ± 0.022
1.725PheTyr: 1.725 ± 0.04
0.0PheXaa: 0.0 ± 0.0
Gly
4.777GlyAla: 4.777 ± 0.094
0.733GlyCys: 0.733 ± 0.028
3.151GlyAsp: 3.151 ± 0.059
4.228GlyGlu: 4.228 ± 0.064
3.556GlyPhe: 3.556 ± 0.063
4.877GlyGly: 4.877 ± 0.082
1.422GlyHis: 1.422 ± 0.039
6.354GlyIle: 6.354 ± 0.068
5.334GlyLys: 5.334 ± 0.066
6.718GlyLeu: 6.718 ± 0.093
2.159GlyMet: 2.159 ± 0.045
3.011GlyAsn: 3.011 ± 0.05
1.736GlyPro: 1.736 ± 0.04
2.158GlyGln: 2.158 ± 0.046
2.64GlyArg: 2.64 ± 0.057
4.017GlySer: 4.017 ± 0.068
4.049GlyThr: 4.049 ± 0.06
5.084GlyVal: 5.084 ± 0.068
0.812GlyTrp: 0.812 ± 0.031
2.788GlyTyr: 2.788 ± 0.047
0.0GlyXaa: 0.0 ± 0.0
His
1.148HisAla: 1.148 ± 0.031
0.193HisCys: 0.193 ± 0.013
1.005HisAsp: 1.005 ± 0.033
1.332HisGlu: 1.332 ± 0.036
1.093HisPhe: 1.093 ± 0.032
1.395HisGly: 1.395 ± 0.035
0.661HisHis: 0.661 ± 0.022
1.457HisIle: 1.457 ± 0.032
0.965HisLys: 0.965 ± 0.027
2.025HisLeu: 2.025 ± 0.045
0.44HisMet: 0.44 ± 0.02
0.784HisAsn: 0.784 ± 0.027
1.098HisPro: 1.098 ± 0.033
0.875HisGln: 0.875 ± 0.027
0.858HisArg: 0.858 ± 0.028
1.307HisSer: 1.307 ± 0.033
0.994HisThr: 0.994 ± 0.027
1.312HisVal: 1.312 ± 0.033
0.208HisTrp: 0.208 ± 0.013
0.857HisTyr: 0.857 ± 0.026
0.0HisXaa: 0.0 ± 0.0
Ile
5.861IleAla: 5.861 ± 0.071
0.722IleCys: 0.722 ± 0.024
4.414IleAsp: 4.414 ± 0.061
5.871IleGlu: 5.871 ± 0.074
3.685IlePhe: 3.685 ± 0.064
6.195IleGly: 6.195 ± 0.078
1.656IleHis: 1.656 ± 0.039
6.531IleIle: 6.531 ± 0.08
5.395IleLys: 5.395 ± 0.068
7.751IleLeu: 7.751 ± 0.093
1.927IleMet: 1.927 ± 0.044
3.908IleAsn: 3.908 ± 0.056
3.591IlePro: 3.591 ± 0.053
2.975IleGln: 2.975 ± 0.053
3.149IleArg: 3.149 ± 0.049
5.627IleSer: 5.627 ± 0.077
4.558IleThr: 4.558 ± 0.067
5.677IleVal: 5.677 ± 0.064
0.682IleTrp: 0.682 ± 0.022
2.537IleTyr: 2.537 ± 0.05
0.0IleXaa: 0.0 ± 0.0
Lys
4.612LysAla: 4.612 ± 0.064
0.429LysCys: 0.429 ± 0.02
3.924LysAsp: 3.924 ± 0.061
6.426LysGlu: 6.426 ± 0.091
2.227LysPhe: 2.227 ± 0.045
4.718LysGly: 4.718 ± 0.068
1.2LysHis: 1.2 ± 0.035
5.596LysIle: 5.596 ± 0.077
6.372LysLys: 6.372 ± 0.089
6.292LysLeu: 6.292 ± 0.071
2.391LysMet: 2.391 ± 0.046
3.893LysAsn: 3.893 ± 0.062
2.216LysPro: 2.216 ± 0.042
3.276LysGln: 3.276 ± 0.06
3.318LysArg: 3.318 ± 0.055
3.766LysSer: 3.766 ± 0.058
3.814LysThr: 3.814 ± 0.052
4.946LysVal: 4.946 ± 0.072
0.851LysTrp: 0.851 ± 0.029
2.284LysTyr: 2.284 ± 0.04
0.0LysXaa: 0.0 ± 0.0
Leu
7.149LeuAla: 7.149 ± 0.086
0.7LeuCys: 0.7 ± 0.023
4.757LeuAsp: 4.757 ± 0.061
6.39LeuGlu: 6.39 ± 0.073
4.985LeuPhe: 4.985 ± 0.081
6.599LeuGly: 6.599 ± 0.087
1.862LeuHis: 1.862 ± 0.035
7.641LeuIle: 7.641 ± 0.09
7.027LeuLys: 7.027 ± 0.083
10.168LeuLeu: 10.168 ± 0.13
2.463LeuMet: 2.463 ± 0.055
4.631LeuAsn: 4.631 ± 0.069
3.87LeuPro: 3.87 ± 0.061
3.487LeuGln: 3.487 ± 0.062
3.596LeuArg: 3.596 ± 0.072
6.857LeuSer: 6.857 ± 0.068
5.666LeuThr: 5.666 ± 0.064
6.497LeuVal: 6.497 ± 0.076
0.81LeuTrp: 0.81 ± 0.028
3.046LeuTyr: 3.046 ± 0.052
0.0LeuXaa: 0.0 ± 0.0
Met
1.984MetAla: 1.984 ± 0.042
0.171MetCys: 0.171 ± 0.011
1.36MetAsp: 1.36 ± 0.031
1.876MetGlu: 1.876 ± 0.037
1.117MetPhe: 1.117 ± 0.033
1.826MetGly: 1.826 ± 0.04
0.402MetHis: 0.402 ± 0.016
2.267MetIle: 2.267 ± 0.045
2.52MetLys: 2.52 ± 0.046
2.489MetLeu: 2.489 ± 0.049
0.865MetMet: 0.865 ± 0.025
1.532MetAsn: 1.532 ± 0.038
1.008MetPro: 1.008 ± 0.033
0.769MetGln: 0.769 ± 0.024
0.991MetArg: 0.991 ± 0.027
1.638MetSer: 1.638 ± 0.037
1.571MetThr: 1.571 ± 0.038
1.962MetVal: 1.962 ± 0.043
0.178MetTrp: 0.178 ± 0.011
0.645MetTyr: 0.645 ± 0.024
0.0MetXaa: 0.0 ± 0.0
Asn
2.689AsnAla: 2.689 ± 0.049
0.379AsnCys: 0.379 ± 0.02
2.3AsnAsp: 2.3 ± 0.05
3.429AsnGlu: 3.429 ± 0.058
1.809AsnPhe: 1.809 ± 0.036
3.648AsnGly: 3.648 ± 0.062
1.153AsnHis: 1.153 ± 0.028
3.823AsnIle: 3.823 ± 0.062
3.405AsnLys: 3.405 ± 0.062
4.341AsnLeu: 4.341 ± 0.061
1.245AsnMet: 1.245 ± 0.03
2.172AsnAsn: 2.172 ± 0.058
2.257AsnPro: 2.257 ± 0.044
2.142AsnGln: 2.142 ± 0.047
2.146AsnArg: 2.146 ± 0.047
2.701AsnSer: 2.701 ± 0.052
2.232AsnThr: 2.232 ± 0.043
3.032AsnVal: 3.032 ± 0.049
0.53AsnTrp: 0.53 ± 0.021
1.567AsnTyr: 1.567 ± 0.036
0.0AsnXaa: 0.0 ± 0.0
Pro
2.21ProAla: 2.21 ± 0.049
0.254ProCys: 0.254 ± 0.013
1.937ProAsp: 1.937 ± 0.046
2.935ProGlu: 2.935 ± 0.053
2.081ProPhe: 2.081 ± 0.045
2.332ProGly: 2.332 ± 0.042
0.726ProHis: 0.726 ± 0.022
3.091ProIle: 3.091 ± 0.049
2.304ProLys: 2.304 ± 0.047
3.534ProLeu: 3.534 ± 0.061
0.814ProMet: 0.814 ± 0.025
1.905ProAsn: 1.905 ± 0.038
1.019ProPro: 1.019 ± 0.033
1.172ProGln: 1.172 ± 0.033
1.155ProArg: 1.155 ± 0.034
2.224ProSer: 2.224 ± 0.046
1.986ProThr: 1.986 ± 0.038
2.76ProVal: 2.76 ± 0.046
0.378ProTrp: 0.378 ± 0.018
1.322ProTyr: 1.322 ± 0.035
0.0ProXaa: 0.0 ± 0.0
Gln
2.534GlnAla: 2.534 ± 0.053
0.244GlnCys: 0.244 ± 0.015
1.587GlnAsp: 1.587 ± 0.036
2.753GlnGlu: 2.753 ± 0.047
1.722GlnPhe: 1.722 ± 0.04
2.192GlnGly: 2.192 ± 0.042
0.759GlnHis: 0.759 ± 0.024
2.922GlnIle: 2.922 ± 0.057
2.844GlnLys: 2.844 ± 0.051
3.808GlnLeu: 3.808 ± 0.053
1.01GlnMet: 1.01 ± 0.035
1.874GlnAsn: 1.874 ± 0.04
1.216GlnPro: 1.216 ± 0.031
1.703GlnGln: 1.703 ± 0.046
1.446GlnArg: 1.446 ± 0.034
2.097GlnSer: 2.097 ± 0.048
2.061GlnThr: 2.061 ± 0.046
2.416GlnVal: 2.416 ± 0.043
0.377GlnTrp: 0.377 ± 0.017
1.365GlnTyr: 1.365 ± 0.032
0.0GlnXaa: 0.0 ± 0.0
Arg
2.269ArgAla: 2.269 ± 0.047
0.282ArgCys: 0.282 ± 0.016
1.987ArgAsp: 1.987 ± 0.037
2.949ArgGlu: 2.949 ± 0.054
1.979ArgPhe: 1.979 ± 0.036
2.404ArgGly: 2.404 ± 0.047
0.715ArgHis: 0.715 ± 0.021
3.145ArgIle: 3.145 ± 0.048
3.267ArgLys: 3.267 ± 0.05
3.941ArgLeu: 3.941 ± 0.058
1.25ArgMet: 1.25 ± 0.033
2.016ArgAsn: 2.016 ± 0.041
1.365ArgPro: 1.365 ± 0.031
1.485ArgGln: 1.485 ± 0.034
1.75ArgArg: 1.75 ± 0.04
2.208ArgSer: 2.208 ± 0.049
1.934ArgThr: 1.934 ± 0.045
2.644ArgVal: 2.644 ± 0.052
0.386ArgTrp: 0.386 ± 0.019
1.44ArgTyr: 1.44 ± 0.035
0.0ArgXaa: 0.0 ± 0.0
Ser
3.665SerAla: 3.665 ± 0.063
0.472SerCys: 0.472 ± 0.02
2.821SerAsp: 2.821 ± 0.05
3.903SerGlu: 3.903 ± 0.062
3.4SerPhe: 3.4 ± 0.051
4.636SerGly: 4.636 ± 0.067
1.189SerHis: 1.189 ± 0.036
5.291SerIle: 5.291 ± 0.072
4.229SerLys: 4.229 ± 0.06
6.317SerLeu: 6.317 ± 0.075
1.641SerMet: 1.641 ± 0.035
2.687SerAsn: 2.687 ± 0.045
2.253SerPro: 2.253 ± 0.047
2.062SerGln: 2.062 ± 0.036
2.311SerArg: 2.311 ± 0.045
4.085SerSer: 4.085 ± 0.066
3.187SerThr: 3.187 ± 0.052
4.153SerVal: 4.153 ± 0.054
0.656SerTrp: 0.656 ± 0.024
2.23SerTyr: 2.23 ± 0.043
0.0SerXaa: 0.0 ± 0.0
Thr
3.822ThrAla: 3.822 ± 0.063
0.414ThrCys: 0.414 ± 0.022
2.626ThrAsp: 2.626 ± 0.05
3.335ThrGlu: 3.335 ± 0.057
2.589ThrPhe: 2.589 ± 0.056
4.288ThrGly: 4.288 ± 0.064
1.015ThrHis: 1.015 ± 0.028
4.769ThrIle: 4.769 ± 0.072
3.574ThrLys: 3.574 ± 0.054
5.025ThrLeu: 5.025 ± 0.073
1.283ThrMet: 1.283 ± 0.031
2.571ThrAsn: 2.571 ± 0.049
2.273ThrPro: 2.273 ± 0.044
1.436ThrGln: 1.436 ± 0.042
1.826ThrArg: 1.826 ± 0.038
3.311ThrSer: 3.311 ± 0.049
3.02ThrThr: 3.02 ± 0.052
4.131ThrVal: 4.131 ± 0.064
0.53ThrTrp: 0.53 ± 0.022
1.75ThrTyr: 1.75 ± 0.037
0.0ThrXaa: 0.0 ± 0.0
Val
4.902ValAla: 4.902 ± 0.077
0.651ValCys: 0.651 ± 0.024
3.592ValAsp: 3.592 ± 0.05
4.681ValGlu: 4.681 ± 0.069
3.233ValPhe: 3.233 ± 0.058
4.847ValGly: 4.847 ± 0.091
1.28ValHis: 1.28 ± 0.029
5.827ValIle: 5.827 ± 0.076
4.826ValLys: 4.826 ± 0.068
6.691ValLeu: 6.691 ± 0.083
1.797ValMet: 1.797 ± 0.041
3.219ValAsn: 3.219 ± 0.044
2.727ValPro: 2.727 ± 0.048
2.263ValGln: 2.263 ± 0.045
2.56ValArg: 2.56 ± 0.046
4.585ValSer: 4.585 ± 0.061
3.976ValThr: 3.976 ± 0.063
5.176ValVal: 5.176 ± 0.158
0.613ValTrp: 0.613 ± 0.021
2.16ValTyr: 2.16 ± 0.038
0.0ValXaa: 0.0 ± 0.0
Trp
0.584TrpAla: 0.584 ± 0.021
0.085TrpCys: 0.085 ± 0.008
0.512TrpAsp: 0.512 ± 0.021
0.658TrpGlu: 0.658 ± 0.024
0.545TrpPhe: 0.545 ± 0.024
0.654TrpGly: 0.654 ± 0.024
0.193TrpHis: 0.193 ± 0.014
0.837TrpIle: 0.837 ± 0.028
0.736TrpLys: 0.736 ± 0.026
1.099TrpLeu: 1.099 ± 0.033
0.322TrpMet: 0.322 ± 0.015
0.546TrpAsn: 0.546 ± 0.022
0.238TrpPro: 0.238 ± 0.013
0.346TrpGln: 0.346 ± 0.017
0.392TrpArg: 0.392 ± 0.017
0.581TrpSer: 0.581 ± 0.022
0.48TrpThr: 0.48 ± 0.019
0.687TrpVal: 0.687 ± 0.026
0.139TrpTrp: 0.139 ± 0.01
0.352TrpTyr: 0.352 ± 0.015
0.0TrpXaa: 0.0 ± 0.0
Tyr
1.89TyrAla: 1.89 ± 0.045
0.349TyrCys: 0.349 ± 0.016
1.843TyrAsp: 1.843 ± 0.038
2.195TyrGlu: 2.195 ± 0.049
1.879TyrPhe: 1.879 ± 0.044
2.428TyrGly: 2.428 ± 0.048
0.797TyrHis: 0.797 ± 0.025
2.544TyrIle: 2.544 ± 0.052
2.108TyrLys: 2.108 ± 0.047
3.549TyrLeu: 3.549 ± 0.056
0.78TyrMet: 0.78 ± 0.023
1.41TyrAsn: 1.41 ± 0.032
1.384TyrPro: 1.384 ± 0.039
1.631TyrGln: 1.631 ± 0.039
1.54TyrArg: 1.54 ± 0.041
2.211TyrSer: 2.211 ± 0.042
1.688TyrThr: 1.688 ± 0.042
2.114TyrVal: 2.114 ± 0.041
0.357TyrTrp: 0.357 ± 0.015
1.345TyrTyr: 1.345 ± 0.039
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 4384 proteins (1276292 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