Amino acid dipepetide frequency for Loktanella sp. IMCC34160

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
16.674AlaAla: 16.674 ± 0.165
1.044AlaCys: 1.044 ± 0.031
7.406AlaAsp: 7.406 ± 0.091
8.487AlaGlu: 8.487 ± 0.095
4.256AlaPhe: 4.256 ± 0.07
10.917AlaGly: 10.917 ± 0.122
2.203AlaHis: 2.203 ± 0.044
5.969AlaIle: 5.969 ± 0.072
3.708AlaLys: 3.708 ± 0.083
13.006AlaLeu: 13.006 ± 0.147
3.565AlaMet: 3.565 ± 0.063
2.771AlaAsn: 2.771 ± 0.051
5.645AlaPro: 5.645 ± 0.081
4.111AlaGln: 4.111 ± 0.059
8.656AlaArg: 8.656 ± 0.09
5.216AlaSer: 5.216 ± 0.064
6.039AlaThr: 6.039 ± 0.073
8.194AlaVal: 8.194 ± 0.101
1.283AlaTrp: 1.283 ± 0.04
2.513AlaTyr: 2.513 ± 0.05
0.0AlaXaa: 0.0 ± 0.0
Cys
1.043CysAla: 1.043 ± 0.031
0.122CysCys: 0.122 ± 0.011
0.683CysAsp: 0.683 ± 0.027
0.443CysGlu: 0.443 ± 0.02
0.346CysPhe: 0.346 ± 0.017
0.957CysGly: 0.957 ± 0.031
0.26CysHis: 0.26 ± 0.017
0.406CysIle: 0.406 ± 0.02
0.206CysLys: 0.206 ± 0.013
0.866CysLeu: 0.866 ± 0.028
0.176CysMet: 0.176 ± 0.012
0.205CysAsn: 0.205 ± 0.014
0.492CysPro: 0.492 ± 0.023
0.237CysGln: 0.237 ± 0.016
0.557CysArg: 0.557 ± 0.023
0.463CysSer: 0.463 ± 0.021
0.455CysThr: 0.455 ± 0.02
0.631CysVal: 0.631 ± 0.026
0.112CysTrp: 0.112 ± 0.01
0.238CysTyr: 0.238 ± 0.013
0.0CysXaa: 0.0 ± 0.0
Asp
7.208AspAla: 7.208 ± 0.089
0.572AspCys: 0.572 ± 0.026
3.758AspAsp: 3.758 ± 0.092
3.358AspGlu: 3.358 ± 0.067
2.345AspPhe: 2.345 ± 0.052
6.11AspGly: 6.11 ± 0.112
1.504AspHis: 1.504 ± 0.04
3.232AspIle: 3.232 ± 0.058
1.734AspLys: 1.734 ± 0.044
6.871AspLeu: 6.871 ± 0.091
1.781AspMet: 1.781 ± 0.044
1.349AspAsn: 1.349 ± 0.038
4.069AspPro: 4.069 ± 0.065
2.081AspGln: 2.081 ± 0.04
5.068AspArg: 5.068 ± 0.072
2.347AspSer: 2.347 ± 0.053
3.1AspThr: 3.1 ± 0.078
4.217AspVal: 4.217 ± 0.074
1.351AspTrp: 1.351 ± 0.032
1.755AspTyr: 1.755 ± 0.043
0.0AspXaa: 0.0 ± 0.0
Glu
8.092GluAla: 8.092 ± 0.105
0.389GluCys: 0.389 ± 0.018
3.511GluAsp: 3.511 ± 0.057
3.702GluGlu: 3.702 ± 0.071
1.929GluPhe: 1.929 ± 0.041
4.828GluGly: 4.828 ± 0.065
1.037GluHis: 1.037 ± 0.032
3.546GluIle: 3.546 ± 0.057
2.044GluLys: 2.044 ± 0.059
4.811GluLeu: 4.811 ± 0.067
1.714GluMet: 1.714 ± 0.038
1.662GluAsn: 1.662 ± 0.039
2.345GluPro: 2.345 ± 0.065
1.874GluGln: 1.874 ± 0.043
3.81GluArg: 3.81 ± 0.069
2.098GluSer: 2.098 ± 0.04
3.767GluThr: 3.767 ± 0.056
4.759GluVal: 4.759 ± 0.077
0.707GluTrp: 0.707 ± 0.027
1.019GluTyr: 1.019 ± 0.031
0.0GluXaa: 0.0 ± 0.0
Phe
4.405PheAla: 4.405 ± 0.075
0.443PheCys: 0.443 ± 0.021
3.103PheAsp: 3.103 ± 0.063
2.251PheGlu: 2.251 ± 0.044
1.392PhePhe: 1.392 ± 0.047
4.046PheGly: 4.046 ± 0.068
0.811PheHis: 0.811 ± 0.029
1.73PheIle: 1.73 ± 0.045
0.899PheLys: 0.899 ± 0.033
3.427PheLeu: 3.427 ± 0.064
0.892PheMet: 0.892 ± 0.033
1.073PheAsn: 1.073 ± 0.028
1.629PhePro: 1.629 ± 0.036
1.019PheGln: 1.019 ± 0.027
2.271PheArg: 2.271 ± 0.048
2.082PheSer: 2.082 ± 0.043
2.031PheThr: 2.031 ± 0.044
2.751PheVal: 2.751 ± 0.057
0.606PheTrp: 0.606 ± 0.029
0.962PheTyr: 0.962 ± 0.033
0.0PheXaa: 0.0 ± 0.0
Gly
10.19GlyAla: 10.19 ± 0.114
0.885GlyCys: 0.885 ± 0.028
5.03GlyAsp: 5.03 ± 0.13
4.628GlyGlu: 4.628 ± 0.067
3.817GlyPhe: 3.817 ± 0.053
7.891GlyGly: 7.891 ± 0.159
1.973GlyHis: 1.973 ± 0.047
4.66GlyIle: 4.66 ± 0.069
3.132GlyLys: 3.132 ± 0.072
9.315GlyLeu: 9.315 ± 0.104
2.677GlyMet: 2.677 ± 0.048
2.403GlyAsn: 2.403 ± 0.102
4.017GlyPro: 4.017 ± 0.06
3.395GlyGln: 3.395 ± 0.07
5.966GlyArg: 5.966 ± 0.08
4.329GlySer: 4.329 ± 0.071
4.977GlyThr: 4.977 ± 0.105
6.633GlyVal: 6.633 ± 0.087
1.625GlyTrp: 1.625 ± 0.046
2.395GlyTyr: 2.395 ± 0.053
0.0GlyXaa: 0.0 ± 0.0
His
2.16HisAla: 2.16 ± 0.048
0.228HisCys: 0.228 ± 0.016
1.305HisAsp: 1.305 ± 0.036
0.959HisGlu: 0.959 ± 0.027
0.859HisPhe: 0.859 ± 0.027
1.973HisGly: 1.973 ± 0.043
0.554HisHis: 0.554 ± 0.027
1.03HisIle: 1.03 ± 0.029
0.512HisLys: 0.512 ± 0.022
2.12HisLeu: 2.12 ± 0.045
0.53HisMet: 0.53 ± 0.021
0.461HisAsn: 0.461 ± 0.018
1.442HisPro: 1.442 ± 0.034
0.548HisGln: 0.548 ± 0.019
1.425HisArg: 1.425 ± 0.036
0.942HisSer: 0.942 ± 0.031
0.819HisThr: 0.819 ± 0.026
1.496HisVal: 1.496 ± 0.035
0.374HisTrp: 0.374 ± 0.019
0.56HisTyr: 0.56 ± 0.022
0.0HisXaa: 0.0 ± 0.0
Ile
6.872IleAla: 6.872 ± 0.089
0.6IleCys: 0.6 ± 0.026
3.817IleAsp: 3.817 ± 0.062
3.475IleGlu: 3.475 ± 0.059
1.799IlePhe: 1.799 ± 0.048
5.097IleGly: 5.097 ± 0.07
0.91IleHis: 0.91 ± 0.031
2.317IleIle: 2.317 ± 0.054
1.351IleLys: 1.351 ± 0.033
4.98IleLeu: 4.98 ± 0.081
1.12IleMet: 1.12 ± 0.037
1.46IleAsn: 1.46 ± 0.036
2.395IlePro: 2.395 ± 0.047
1.209IleGln: 1.209 ± 0.035
3.42IleArg: 3.42 ± 0.05
2.843IleSer: 2.843 ± 0.056
2.848IleThr: 2.848 ± 0.048
4.017IleVal: 4.017 ± 0.06
0.737IleTrp: 0.737 ± 0.028
1.233IleTyr: 1.233 ± 0.034
0.0IleXaa: 0.0 ± 0.0
Lys
3.812LysAla: 3.812 ± 0.069
0.192LysCys: 0.192 ± 0.012
1.757LysAsp: 1.757 ± 0.046
1.497LysGlu: 1.497 ± 0.047
0.92LysPhe: 0.92 ± 0.032
2.8LysGly: 2.8 ± 0.053
0.559LysHis: 0.559 ± 0.023
1.619LysIle: 1.619 ± 0.043
1.152LysLys: 1.152 ± 0.046
2.675LysLeu: 2.675 ± 0.061
0.825LysMet: 0.825 ± 0.033
0.732LysAsn: 0.732 ± 0.031
1.691LysPro: 1.691 ± 0.043
0.797LysGln: 0.797 ± 0.03
2.006LysArg: 2.006 ± 0.05
1.715LysSer: 1.715 ± 0.041
1.918LysThr: 1.918 ± 0.049
2.316LysVal: 2.316 ± 0.053
0.411LysTrp: 0.411 ± 0.018
0.616LysTyr: 0.616 ± 0.029
0.0LysXaa: 0.0 ± 0.0
Leu
12.354LeuAla: 12.354 ± 0.117
0.935LeuCys: 0.935 ± 0.027
5.979LeuAsp: 5.979 ± 0.074
4.972LeuGlu: 4.972 ± 0.071
3.611LeuPhe: 3.611 ± 0.07
8.452LeuGly: 8.452 ± 0.1
1.891LeuHis: 1.891 ± 0.039
5.216LeuIle: 5.216 ± 0.079
2.888LeuLys: 2.888 ± 0.064
8.405LeuLeu: 8.405 ± 0.129
2.559LeuMet: 2.559 ± 0.05
2.684LeuAsn: 2.684 ± 0.051
5.474LeuPro: 5.474 ± 0.078
2.624LeuGln: 2.624 ± 0.051
6.797LeuArg: 6.797 ± 0.093
6.853LeuSer: 6.853 ± 0.087
6.193LeuThr: 6.193 ± 0.078
6.692LeuVal: 6.692 ± 0.098
1.345LeuTrp: 1.345 ± 0.041
1.948LeuTyr: 1.948 ± 0.05
0.0LeuXaa: 0.0 ± 0.0
Met
3.381MetAla: 3.381 ± 0.054
0.191MetCys: 0.191 ± 0.013
1.51MetAsp: 1.51 ± 0.035
1.399MetGlu: 1.399 ± 0.041
0.85MetPhe: 0.85 ± 0.026
2.405MetGly: 2.405 ± 0.047
0.481MetHis: 0.481 ± 0.023
1.591MetIle: 1.591 ± 0.041
1.03MetLys: 1.03 ± 0.034
2.426MetLeu: 2.426 ± 0.052
0.754MetMet: 0.754 ± 0.027
0.87MetAsn: 0.87 ± 0.029
1.445MetPro: 1.445 ± 0.039
0.882MetGln: 0.882 ± 0.03
1.773MetArg: 1.773 ± 0.042
1.631MetSer: 1.631 ± 0.038
2.21MetThr: 2.21 ± 0.046
1.936MetVal: 1.936 ± 0.044
0.238MetTrp: 0.238 ± 0.014
0.337MetTyr: 0.337 ± 0.019
0.0MetXaa: 0.0 ± 0.0
Asn
3.047AsnAla: 3.047 ± 0.054
0.279AsnCys: 0.279 ± 0.015
1.633AsnAsp: 1.633 ± 0.079
1.179AsnGlu: 1.179 ± 0.03
1.031AsnPhe: 1.031 ± 0.031
2.615AsnGly: 2.615 ± 0.067
0.531AsnHis: 0.531 ± 0.022
1.373AsnIle: 1.373 ± 0.04
0.596AsnLys: 0.596 ± 0.028
2.573AsnLeu: 2.573 ± 0.043
0.716AsnMet: 0.716 ± 0.029
0.692AsnAsn: 0.692 ± 0.028
1.93AsnPro: 1.93 ± 0.041
0.693AsnGln: 0.693 ± 0.026
1.847AsnArg: 1.847 ± 0.04
1.189AsnSer: 1.189 ± 0.042
1.35AsnThr: 1.35 ± 0.037
1.816AsnVal: 1.816 ± 0.044
0.521AsnTrp: 0.521 ± 0.025
0.645AsnTyr: 0.645 ± 0.026
0.0AsnXaa: 0.0 ± 0.0
Pro
5.892ProAla: 5.892 ± 0.084
0.365ProCys: 0.365 ± 0.02
4.228ProAsp: 4.228 ± 0.068
4.032ProGlu: 4.032 ± 0.075
1.991ProPhe: 1.991 ± 0.045
4.478ProGly: 4.478 ± 0.072
1.047ProHis: 1.047 ± 0.034
2.436ProIle: 2.436 ± 0.045
1.626ProLys: 1.626 ± 0.035
4.466ProLeu: 4.466 ± 0.07
1.321ProMet: 1.321 ± 0.038
1.412ProAsn: 1.412 ± 0.034
2.279ProPro: 2.279 ± 0.078
1.493ProGln: 1.493 ± 0.041
2.788ProArg: 2.788 ± 0.057
2.484ProSer: 2.484 ± 0.05
2.703ProThr: 2.703 ± 0.05
4.345ProVal: 4.345 ± 0.076
0.698ProTrp: 0.698 ± 0.027
1.202ProTyr: 1.202 ± 0.033
0.0ProXaa: 0.0 ± 0.0
Gln
3.718GlnAla: 3.718 ± 0.059
0.207GlnCys: 0.207 ± 0.013
1.782GlnAsp: 1.782 ± 0.049
1.427GlnGlu: 1.427 ± 0.036
1.105GlnPhe: 1.105 ± 0.033
2.46GlnGly: 2.46 ± 0.044
0.569GlnHis: 0.569 ± 0.022
1.976GlnIle: 1.976 ± 0.041
1.03GlnLys: 1.03 ± 0.031
2.744GlnLeu: 2.744 ± 0.051
1.067GlnMet: 1.067 ± 0.026
0.891GlnAsn: 0.891 ± 0.029
1.556GlnPro: 1.556 ± 0.04
1.003GlnGln: 1.003 ± 0.034
2.058GlnArg: 2.058 ± 0.053
1.843GlnSer: 1.843 ± 0.042
1.796GlnThr: 1.796 ± 0.042
2.454GlnVal: 2.454 ± 0.055
0.395GlnTrp: 0.395 ± 0.021
0.595GlnTyr: 0.595 ± 0.023
0.0GlnXaa: 0.0 ± 0.0
Arg
8.182ArgAla: 8.182 ± 0.093
0.456ArgCys: 0.456 ± 0.019
4.466ArgAsp: 4.466 ± 0.066
3.518ArgGlu: 3.518 ± 0.059
2.752ArgPhe: 2.752 ± 0.054
4.731ArgGly: 4.731 ± 0.07
1.486ArgHis: 1.486 ± 0.043
3.997ArgIle: 3.997 ± 0.064
2.24ArgLys: 2.24 ± 0.051
7.121ArgLeu: 7.121 ± 0.093
2.041ArgMet: 2.041 ± 0.048
1.783ArgAsn: 1.783 ± 0.041
3.42ArgPro: 3.42 ± 0.059
2.266ArgGln: 2.266 ± 0.049
4.827ArgArg: 4.827 ± 0.077
3.249ArgSer: 3.249 ± 0.061
3.18ArgThr: 3.18 ± 0.059
4.749ArgVal: 4.749 ± 0.069
1.005ArgTrp: 1.005 ± 0.03
1.567ArgTyr: 1.567 ± 0.041
0.0ArgXaa: 0.0 ± 0.0
Ser
5.612SerAla: 5.612 ± 0.071
0.448SerCys: 0.448 ± 0.022
3.411SerAsp: 3.411 ± 0.06
2.719SerGlu: 2.719 ± 0.056
2.241SerPhe: 2.241 ± 0.043
5.499SerGly: 5.499 ± 0.09
1.026SerHis: 1.026 ± 0.028
2.512SerIle: 2.512 ± 0.053
1.415SerLys: 1.415 ± 0.038
4.771SerLeu: 4.771 ± 0.069
1.34SerMet: 1.34 ± 0.035
1.384SerAsn: 1.384 ± 0.036
2.649SerPro: 2.649 ± 0.047
1.496SerGln: 1.496 ± 0.032
3.244SerArg: 3.244 ± 0.065
2.514SerSer: 2.514 ± 0.058
2.505SerThr: 2.505 ± 0.045
3.767SerVal: 3.767 ± 0.06
0.686SerTrp: 0.686 ± 0.026
1.327SerTyr: 1.327 ± 0.036
0.0SerXaa: 0.0 ± 0.0
Thr
6.073ThrAla: 6.073 ± 0.09
0.512ThrCys: 0.512 ± 0.02
3.405ThrAsp: 3.405 ± 0.059
3.127ThrGlu: 3.127 ± 0.057
2.144ThrPhe: 2.144 ± 0.047
5.589ThrGly: 5.589 ± 0.079
1.159ThrHis: 1.159 ± 0.035
2.931ThrIle: 2.931 ± 0.061
1.403ThrLys: 1.403 ± 0.039
5.928ThrLeu: 5.928 ± 0.092
1.253ThrMet: 1.253 ± 0.034
1.414ThrAsn: 1.414 ± 0.041
3.381ThrPro: 3.381 ± 0.056
1.482ThrGln: 1.482 ± 0.04
3.553ThrArg: 3.553 ± 0.064
2.667ThrSer: 2.667 ± 0.042
2.906ThrThr: 2.906 ± 0.06
4.552ThrVal: 4.552 ± 0.097
0.706ThrTrp: 0.706 ± 0.026
1.385ThrTyr: 1.385 ± 0.041
0.0ThrXaa: 0.0 ± 0.0
Val
8.98ValAla: 8.98 ± 0.101
0.619ValCys: 0.619 ± 0.023
4.409ValAsp: 4.409 ± 0.073
4.476ValGlu: 4.476 ± 0.066
2.9ValPhe: 2.9 ± 0.054
5.793ValGly: 5.793 ± 0.07
1.373ValHis: 1.373 ± 0.039
4.3ValIle: 4.3 ± 0.076
2.034ValLys: 2.034 ± 0.052
7.431ValLeu: 7.431 ± 0.098
2.029ValMet: 2.029 ± 0.04
1.995ValAsn: 1.995 ± 0.043
3.639ValPro: 3.639 ± 0.058
2.212ValGln: 2.212 ± 0.036
4.349ValArg: 4.349 ± 0.065
4.015ValSer: 4.015 ± 0.063
4.78ValThr: 4.78 ± 0.081
5.75ValVal: 5.75 ± 0.082
1.078ValTrp: 1.078 ± 0.035
1.48ValTyr: 1.48 ± 0.044
0.0ValXaa: 0.0 ± 0.0
Trp
1.492TrpAla: 1.492 ± 0.042
0.15TrpCys: 0.15 ± 0.011
0.86TrpAsp: 0.86 ± 0.031
0.727TrpGlu: 0.727 ± 0.026
0.603TrpPhe: 0.603 ± 0.026
1.082TrpGly: 1.082 ± 0.038
0.374TrpHis: 0.374 ± 0.019
0.744TrpIle: 0.744 ± 0.026
0.448TrpLys: 0.448 ± 0.023
1.651TrpLeu: 1.651 ± 0.049
0.456TrpMet: 0.456 ± 0.02
0.433TrpAsn: 0.433 ± 0.021
0.721TrpPro: 0.721 ± 0.028
0.524TrpGln: 0.524 ± 0.021
1.048TrpArg: 1.048 ± 0.033
0.82TrpSer: 0.82 ± 0.025
0.855TrpThr: 0.855 ± 0.028
0.99TrpVal: 0.99 ± 0.031
0.234TrpTrp: 0.234 ± 0.014
0.273TrpTyr: 0.273 ± 0.016
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.476TyrAla: 2.476 ± 0.048
0.26TyrCys: 0.26 ± 0.014
1.756TyrAsp: 1.756 ± 0.049
1.27TyrGlu: 1.27 ± 0.039
0.929TyrPhe: 0.929 ± 0.03
2.217TyrGly: 2.217 ± 0.056
0.551TyrHis: 0.551 ± 0.022
0.914TyrIle: 0.914 ± 0.028
0.561TyrLys: 0.561 ± 0.025
2.283TyrLeu: 2.283 ± 0.045
0.525TyrMet: 0.525 ± 0.026
0.584TyrAsn: 0.584 ± 0.023
1.068TyrPro: 1.068 ± 0.033
0.729TyrGln: 0.729 ± 0.026
1.573TyrArg: 1.573 ± 0.037
1.266TyrSer: 1.266 ± 0.035
1.137TyrThr: 1.137 ± 0.036
1.579TyrVal: 1.579 ± 0.035
0.373TyrTrp: 0.373 ± 0.021
0.632TyrTyr: 0.632 ± 0.023
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 3606 proteins (1135054 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