Amino acid dipepetide frequency for Leucobacter sp. OH1287

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
19.658AlaAla: 19.658 ± 0.323
0.723AlaCys: 0.723 ± 0.039
7.59AlaAsp: 7.59 ± 0.143
9.26AlaGlu: 9.26 ± 0.172
3.131AlaPhe: 3.131 ± 0.094
10.991AlaGly: 10.991 ± 0.193
1.915AlaHis: 1.915 ± 0.064
6.047AlaIle: 6.047 ± 0.114
5.333AlaLys: 5.333 ± 0.142
11.201AlaLeu: 11.201 ± 0.174
1.997AlaMet: 1.997 ± 0.057
3.399AlaAsn: 3.399 ± 0.075
4.743AlaPro: 4.743 ± 0.132
4.347AlaGln: 4.347 ± 0.1
5.97AlaArg: 5.97 ± 0.13
6.113AlaSer: 6.113 ± 0.113
6.592AlaThr: 6.592 ± 0.132
10.201AlaVal: 10.201 ± 0.162
1.264AlaTrp: 1.264 ± 0.052
2.265AlaTyr: 2.265 ± 0.066
0.0AlaXaa: 0.0 ± 0.0
Cys
0.75CysAla: 0.75 ± 0.04
0.07CysCys: 0.07 ± 0.013
0.418CysAsp: 0.418 ± 0.031
0.423CysGlu: 0.423 ± 0.025
0.252CysPhe: 0.252 ± 0.022
0.7CysGly: 0.7 ± 0.042
0.134CysHis: 0.134 ± 0.016
0.213CysIle: 0.213 ± 0.025
0.163CysLys: 0.163 ± 0.019
0.511CysLeu: 0.511 ± 0.034
0.08CysMet: 0.08 ± 0.012
0.168CysAsn: 0.168 ± 0.019
0.277CysPro: 0.277 ± 0.023
0.211CysGln: 0.211 ± 0.018
0.323CysArg: 0.323 ± 0.027
0.421CysSer: 0.421 ± 0.028
0.345CysThr: 0.345 ± 0.027
0.573CysVal: 0.573 ± 0.033
0.091CysTrp: 0.091 ± 0.013
0.205CysTyr: 0.205 ± 0.016
0.0CysXaa: 0.0 ± 0.0
Asp
6.085AspAla: 6.085 ± 0.113
0.357AspCys: 0.357 ± 0.025
2.615AspAsp: 2.615 ± 0.074
3.684AspGlu: 3.684 ± 0.087
1.963AspPhe: 1.963 ± 0.064
4.506AspGly: 4.506 ± 0.104
1.011AspHis: 1.011 ± 0.04
2.654AspIle: 2.654 ± 0.063
1.779AspLys: 1.779 ± 0.063
5.076AspLeu: 5.076 ± 0.094
0.809AspMet: 0.809 ± 0.043
1.489AspAsn: 1.489 ± 0.059
3.947AspPro: 3.947 ± 0.086
1.643AspGln: 1.643 ± 0.062
3.259AspArg: 3.259 ± 0.083
3.577AspSer: 3.577 ± 0.089
3.041AspThr: 3.041 ± 0.087
3.824AspVal: 3.824 ± 0.094
0.832AspTrp: 0.832 ± 0.043
1.597AspTyr: 1.597 ± 0.061
0.0AspXaa: 0.0 ± 0.0
Glu
6.842GluAla: 6.842 ± 0.12
0.332GluCys: 0.332 ± 0.024
2.324GluAsp: 2.324 ± 0.068
3.143GluGlu: 3.143 ± 0.092
2.349GluPhe: 2.349 ± 0.074
3.643GluGly: 3.643 ± 0.087
1.373GluHis: 1.373 ± 0.053
3.922GluIle: 3.922 ± 0.09
2.368GluLys: 2.368 ± 0.077
8.024GluLeu: 8.024 ± 0.135
1.141GluMet: 1.141 ± 0.047
1.99GluAsn: 1.99 ± 0.069
2.625GluPro: 2.625 ± 0.079
3.4GluGln: 3.4 ± 0.098
4.299GluArg: 4.299 ± 0.096
3.222GluSer: 3.222 ± 0.076
4.065GluThr: 4.065 ± 0.086
4.71GluVal: 4.71 ± 0.092
0.77GluTrp: 0.77 ± 0.036
1.484GluTyr: 1.484 ± 0.053
0.0GluXaa: 0.0 ± 0.0
Phe
4.186PheAla: 4.186 ± 0.084
0.238PheCys: 0.238 ± 0.021
2.081PheAsp: 2.081 ± 0.059
2.104PheGlu: 2.104 ± 0.064
1.22PhePhe: 1.22 ± 0.059
3.347PheGly: 3.347 ± 0.094
0.457PheHis: 0.457 ± 0.03
1.654PheIle: 1.654 ± 0.055
1.154PheLys: 1.154 ± 0.043
2.636PheLeu: 2.636 ± 0.069
0.55PheMet: 0.55 ± 0.032
1.277PheAsn: 1.277 ± 0.053
1.193PhePro: 1.193 ± 0.045
0.975PheGln: 0.975 ± 0.04
1.436PheArg: 1.436 ± 0.048
2.19PheSer: 2.19 ± 0.067
2.284PheThr: 2.284 ± 0.061
2.809PheVal: 2.809 ± 0.079
0.477PheTrp: 0.477 ± 0.033
0.766PheTyr: 0.766 ± 0.046
0.0PheXaa: 0.0 ± 0.0
Gly
9.014GlyAla: 9.014 ± 0.16
0.655GlyCys: 0.655 ± 0.032
4.443GlyAsp: 4.443 ± 0.099
5.727GlyGlu: 5.727 ± 0.108
3.34GlyPhe: 3.34 ± 0.088
7.119GlyGly: 7.119 ± 0.143
1.452GlyHis: 1.452 ± 0.053
4.661GlyIle: 4.661 ± 0.1
3.756GlyLys: 3.756 ± 0.094
7.192GlyLeu: 7.192 ± 0.125
1.598GlyMet: 1.598 ± 0.06
2.365GlyAsn: 2.365 ± 0.096
2.386GlyPro: 2.386 ± 0.068
2.765GlyGln: 2.765 ± 0.076
4.479GlyArg: 4.479 ± 0.104
6.288GlySer: 6.288 ± 0.119
4.601GlyThr: 4.601 ± 0.116
7.192GlyVal: 7.192 ± 0.128
1.27GlyTrp: 1.27 ± 0.048
2.282GlyTyr: 2.282 ± 0.063
0.0GlyXaa: 0.0 ± 0.0
His
1.893HisAla: 1.893 ± 0.069
0.17HisCys: 0.17 ± 0.02
1.038HisAsp: 1.038 ± 0.042
1.134HisGlu: 1.134 ± 0.043
0.543HisPhe: 0.543 ± 0.032
1.722HisGly: 1.722 ± 0.058
0.457HisHis: 0.457 ± 0.034
0.939HisIle: 0.939 ± 0.045
0.518HisLys: 0.518 ± 0.034
1.768HisLeu: 1.768 ± 0.057
0.318HisMet: 0.318 ± 0.023
0.58HisAsn: 0.58 ± 0.03
1.252HisPro: 1.252 ± 0.05
0.584HisGln: 0.584 ± 0.036
1.359HisArg: 1.359 ± 0.06
1.316HisSer: 1.316 ± 0.043
1.207HisThr: 1.207 ± 0.05
1.193HisVal: 1.193 ± 0.046
0.259HisTrp: 0.259 ± 0.023
0.496HisTyr: 0.496 ± 0.029
0.0HisXaa: 0.0 ± 0.0
Ile
7.68IleAla: 7.68 ± 0.143
0.363IleCys: 0.363 ± 0.022
3.125IleAsp: 3.125 ± 0.073
3.027IleGlu: 3.027 ± 0.066
1.486IlePhe: 1.486 ± 0.05
4.615IleGly: 4.615 ± 0.106
0.85IleHis: 0.85 ± 0.041
2.665IleIle: 2.665 ± 0.092
1.743IleLys: 1.743 ± 0.062
3.954IleLeu: 3.954 ± 0.09
0.825IleMet: 0.825 ± 0.041
1.823IleAsn: 1.823 ± 0.065
2.515IlePro: 2.515 ± 0.072
1.172IleGln: 1.172 ± 0.045
2.699IleArg: 2.699 ± 0.069
3.222IleSer: 3.222 ± 0.077
4.002IleThr: 4.002 ± 0.107
4.449IleVal: 4.449 ± 0.112
0.538IleTrp: 0.538 ± 0.037
1.139IleTyr: 1.139 ± 0.05
0.0IleXaa: 0.0 ± 0.0
Lys
3.72LysAla: 3.72 ± 0.101
0.146LysCys: 0.146 ± 0.015
1.643LysAsp: 1.643 ± 0.06
1.807LysGlu: 1.807 ± 0.065
0.938LysPhe: 0.938 ± 0.04
1.966LysGly: 1.966 ± 0.073
0.968LysHis: 0.968 ± 0.044
2.023LysIle: 2.023 ± 0.067
1.688LysLys: 1.688 ± 0.061
4.095LysLeu: 4.095 ± 0.082
0.657LysMet: 0.657 ± 0.036
1.348LysAsn: 1.348 ± 0.056
2.324LysPro: 2.324 ± 0.075
2.375LysGln: 2.375 ± 0.073
2.688LysArg: 2.688 ± 0.082
2.027LysSer: 2.027 ± 0.072
3.058LysThr: 3.058 ± 0.088
2.154LysVal: 2.154 ± 0.064
0.405LysTrp: 0.405 ± 0.027
0.904LysTyr: 0.904 ± 0.039
0.0LysXaa: 0.0 ± 0.0
Leu
12.391LeuAla: 12.391 ± 0.203
0.654LeuCys: 0.654 ± 0.035
5.274LeuAsp: 5.274 ± 0.114
5.315LeuGlu: 5.315 ± 0.117
3.17LeuPhe: 3.17 ± 0.101
7.999LeuGly: 7.999 ± 0.145
1.752LeuHis: 1.752 ± 0.059
5.233LeuIle: 5.233 ± 0.112
3.443LeuLys: 3.443 ± 0.087
11.225LeuLeu: 11.225 ± 0.227
1.543LeuMet: 1.543 ± 0.053
3.104LeuAsn: 3.104 ± 0.072
5.326LeuPro: 5.326 ± 0.105
3.647LeuGln: 3.647 ± 0.102
6.581LeuArg: 6.581 ± 0.127
6.192LeuSer: 6.192 ± 0.103
6.708LeuThr: 6.708 ± 0.11
7.792LeuVal: 7.792 ± 0.158
1.145LeuTrp: 1.145 ± 0.054
1.8LeuTyr: 1.8 ± 0.062
0.0LeuXaa: 0.0 ± 0.0
Met
1.761MetAla: 1.761 ± 0.057
0.104MetCys: 0.104 ± 0.013
0.661MetAsp: 0.661 ± 0.043
0.65MetGlu: 0.65 ± 0.033
0.561MetPhe: 0.561 ± 0.031
1.181MetGly: 1.181 ± 0.05
0.33MetHis: 0.33 ± 0.023
0.93MetIle: 0.93 ± 0.043
0.541MetLys: 0.541 ± 0.026
2.045MetLeu: 2.045 ± 0.063
0.282MetMet: 0.282 ± 0.025
0.554MetAsn: 0.554 ± 0.037
0.918MetPro: 0.918 ± 0.045
0.718MetGln: 0.718 ± 0.036
1.289MetArg: 1.289 ± 0.046
1.313MetSer: 1.313 ± 0.051
1.222MetThr: 1.222 ± 0.046
1.314MetVal: 1.314 ± 0.054
0.184MetTrp: 0.184 ± 0.016
0.266MetTyr: 0.266 ± 0.022
0.0MetXaa: 0.0 ± 0.0
Asn
3.277AsnAla: 3.277 ± 0.069
0.195AsnCys: 0.195 ± 0.02
1.431AsnAsp: 1.431 ± 0.05
1.591AsnGlu: 1.591 ± 0.06
0.964AsnPhe: 0.964 ± 0.043
2.625AsnGly: 2.625 ± 0.083
0.53AsnHis: 0.53 ± 0.031
1.513AsnIle: 1.513 ± 0.058
1.064AsnLys: 1.064 ± 0.049
2.9AsnLeu: 2.9 ± 0.068
0.529AsnMet: 0.529 ± 0.03
1.038AsnAsn: 1.038 ± 0.047
2.418AsnPro: 2.418 ± 0.069
1.186AsnGln: 1.186 ± 0.047
2.031AsnArg: 2.031 ± 0.058
2.073AsnSer: 2.073 ± 0.065
2.075AsnThr: 2.075 ± 0.08
1.857AsnVal: 1.857 ± 0.066
0.5AsnTrp: 0.5 ± 0.031
0.855AsnTyr: 0.855 ± 0.044
0.0AsnXaa: 0.0 ± 0.0
Pro
6.417ProAla: 6.417 ± 0.147
0.196ProCys: 0.196 ± 0.022
2.952ProAsp: 2.952 ± 0.077
4.093ProGlu: 4.093 ± 0.084
1.432ProPhe: 1.432 ± 0.052
4.459ProGly: 4.459 ± 0.105
1.009ProHis: 1.009 ± 0.044
2.004ProIle: 2.004 ± 0.066
1.664ProLys: 1.664 ± 0.057
4.604ProLeu: 4.604 ± 0.092
0.561ProMet: 0.561 ± 0.037
1.493ProAsn: 1.493 ± 0.058
1.659ProPro: 1.659 ± 0.074
2.056ProGln: 2.056 ± 0.073
2.336ProArg: 2.336 ± 0.075
2.484ProSer: 2.484 ± 0.068
2.45ProThr: 2.45 ± 0.076
4.376ProVal: 4.376 ± 0.101
0.563ProTrp: 0.563 ± 0.03
0.98ProTyr: 0.98 ± 0.042
0.0ProXaa: 0.0 ± 0.0
Gln
3.961GlnAla: 3.961 ± 0.1
0.154GlnCys: 0.154 ± 0.016
1.466GlnAsp: 1.466 ± 0.049
1.745GlnGlu: 1.745 ± 0.059
1.154GlnPhe: 1.154 ± 0.043
2.207GlnGly: 2.207 ± 0.062
0.997GlnHis: 0.997 ± 0.052
2.082GlnIle: 2.082 ± 0.063
1.252GlnLys: 1.252 ± 0.051
5.349GlnLeu: 5.349 ± 0.114
0.702GlnMet: 0.702 ± 0.035
1.245GlnAsn: 1.245 ± 0.057
2.032GlnPro: 2.032 ± 0.073
2.727GlnGln: 2.727 ± 0.093
3.159GlnArg: 3.159 ± 0.093
1.95GlnSer: 1.95 ± 0.061
2.104GlnThr: 2.104 ± 0.072
2.8GlnVal: 2.8 ± 0.073
0.448GlnTrp: 0.448 ± 0.031
0.798GlnTyr: 0.798 ± 0.037
0.0GlnXaa: 0.0 ± 0.0
Arg
6.342ArgAla: 6.342 ± 0.113
0.37ArgCys: 0.37 ± 0.026
3.308ArgAsp: 3.308 ± 0.097
4.302ArgGlu: 4.302 ± 0.102
2.37ArgPhe: 2.37 ± 0.067
4.668ArgGly: 4.668 ± 0.115
1.068ArgHis: 1.068 ± 0.046
3.463ArgIle: 3.463 ± 0.089
2.284ArgLys: 2.284 ± 0.063
5.785ArgLeu: 5.785 ± 0.118
1.297ArgMet: 1.297 ± 0.052
1.627ArgAsn: 1.627 ± 0.056
2.352ArgPro: 2.352 ± 0.072
2.441ArgGln: 2.441 ± 0.069
3.909ArgArg: 3.909 ± 0.102
3.291ArgSer: 3.291 ± 0.077
2.85ArgThr: 2.85 ± 0.08
5.488ArgVal: 5.488 ± 0.101
0.857ArgTrp: 0.857 ± 0.042
1.511ArgTyr: 1.511 ± 0.053
0.0ArgXaa: 0.0 ± 0.0
Ser
7.174SerAla: 7.174 ± 0.14
0.418SerCys: 0.418 ± 0.029
3.567SerAsp: 3.567 ± 0.087
3.925SerGlu: 3.925 ± 0.099
2.157SerPhe: 2.157 ± 0.064
6.376SerGly: 6.376 ± 0.126
1.189SerHis: 1.189 ± 0.042
2.579SerIle: 2.579 ± 0.068
2.05SerLys: 2.05 ± 0.065
5.667SerLeu: 5.667 ± 0.113
0.979SerMet: 0.979 ± 0.04
1.888SerAsn: 1.888 ± 0.058
2.632SerPro: 2.632 ± 0.073
2.073SerGln: 2.073 ± 0.068
3.427SerArg: 3.427 ± 0.078
3.538SerSer: 3.538 ± 0.085
3.399SerThr: 3.399 ± 0.095
4.685SerVal: 4.685 ± 0.083
0.879SerTrp: 0.879 ± 0.041
1.631SerTyr: 1.631 ± 0.058
0.0SerXaa: 0.0 ± 0.0
Thr
8.328ThrAla: 8.328 ± 0.147
0.273ThrCys: 0.273 ± 0.022
3.274ThrAsp: 3.274 ± 0.086
3.872ThrGlu: 3.872 ± 0.085
1.623ThrPhe: 1.623 ± 0.056
5.851ThrGly: 5.851 ± 0.123
1.125ThrHis: 1.125 ± 0.042
2.802ThrIle: 2.802 ± 0.072
2.082ThrLys: 2.082 ± 0.062
5.86ThrLeu: 5.86 ± 0.118
0.882ThrMet: 0.882 ± 0.043
1.593ThrAsn: 1.593 ± 0.067
3.908ThrPro: 3.908 ± 0.104
1.856ThrGln: 1.856 ± 0.058
3.116ThrArg: 3.116 ± 0.074
3.308ThrSer: 3.308 ± 0.085
3.463ThrThr: 3.463 ± 0.094
6.647ThrVal: 6.647 ± 0.134
0.709ThrTrp: 0.709 ± 0.038
0.995ThrTyr: 0.995 ± 0.05
0.0ThrXaa: 0.0 ± 0.0
Val
9.719ValAla: 9.719 ± 0.136
0.611ValCys: 0.611 ± 0.035
4.481ValAsp: 4.481 ± 0.093
4.124ValGlu: 4.124 ± 0.079
3.029ValPhe: 3.029 ± 0.077
5.652ValGly: 5.652 ± 0.092
1.454ValHis: 1.454 ± 0.056
4.852ValIle: 4.852 ± 0.105
3.116ValLys: 3.116 ± 0.074
8.458ValLeu: 8.458 ± 0.166
1.493ValMet: 1.493 ± 0.049
2.62ValAsn: 2.62 ± 0.08
3.711ValPro: 3.711 ± 0.091
2.449ValGln: 2.449 ± 0.066
4.515ValArg: 4.515 ± 0.095
5.444ValSer: 5.444 ± 0.101
6.122ValThr: 6.122 ± 0.142
6.579ValVal: 6.579 ± 0.136
1.105ValTrp: 1.105 ± 0.051
1.718ValTyr: 1.718 ± 0.051
0.0ValXaa: 0.0 ± 0.0
Trp
1.177TrpAla: 1.177 ± 0.046
0.132TrpCys: 0.132 ± 0.017
0.675TrpAsp: 0.675 ± 0.04
0.766TrpGlu: 0.766 ± 0.039
0.546TrpPhe: 0.546 ± 0.03
0.904TrpGly: 0.904 ± 0.042
0.321TrpHis: 0.321 ± 0.025
0.764TrpIle: 0.764 ± 0.037
0.307TrpLys: 0.307 ± 0.024
1.618TrpLeu: 1.618 ± 0.061
0.248TrpMet: 0.248 ± 0.02
0.363TrpAsn: 0.363 ± 0.026
0.429TrpPro: 0.429 ± 0.026
0.798TrpGln: 0.798 ± 0.039
0.925TrpArg: 0.925 ± 0.045
0.78TrpSer: 0.78 ± 0.04
0.57TrpThr: 0.57 ± 0.038
1.007TrpVal: 1.007 ± 0.045
0.243TrpTrp: 0.243 ± 0.024
0.311TrpTyr: 0.311 ± 0.023
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.366TyrAla: 2.366 ± 0.063
0.168TyrCys: 0.168 ± 0.015
1.384TyrAsp: 1.384 ± 0.047
1.331TyrGlu: 1.331 ± 0.058
0.805TyrPhe: 0.805 ± 0.041
2.054TyrGly: 2.054 ± 0.06
0.354TyrHis: 0.354 ± 0.028
0.889TyrIle: 0.889 ± 0.039
0.629TyrLys: 0.629 ± 0.034
2.325TyrLeu: 2.325 ± 0.066
0.33TyrMet: 0.33 ± 0.027
0.691TyrAsn: 0.691 ± 0.034
1.143TyrPro: 1.143 ± 0.044
0.911TyrGln: 0.911 ± 0.04
1.782TyrArg: 1.782 ± 0.064
1.484TyrSer: 1.484 ± 0.052
1.409TyrThr: 1.409 ± 0.049
1.602TyrVal: 1.602 ± 0.062
0.346TyrTrp: 0.346 ± 0.022
0.55TyrTyr: 0.55 ± 0.034
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 1690 proteins (559932 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