Amino acid dipepetide frequency for Nocardiopsis sp. JB363

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
15.277AlaAla: 15.277 ± 0.135
0.895AlaCys: 0.895 ± 0.023
7.571AlaAsp: 7.571 ± 0.071
8.892AlaGlu: 8.892 ± 0.089
3.294AlaPhe: 3.294 ± 0.04
10.504AlaGly: 10.504 ± 0.084
2.941AlaHis: 2.941 ± 0.042
3.896AlaIle: 3.896 ± 0.054
2.174AlaLys: 2.174 ± 0.041
13.768AlaLeu: 13.768 ± 0.103
2.615AlaMet: 2.615 ± 0.035
1.873AlaAsn: 1.873 ± 0.037
6.189AlaPro: 6.189 ± 0.064
3.275AlaGln: 3.275 ± 0.046
9.194AlaArg: 9.194 ± 0.085
5.451AlaSer: 5.451 ± 0.051
6.465AlaThr: 6.465 ± 0.058
10.255AlaVal: 10.255 ± 0.09
1.701AlaTrp: 1.701 ± 0.033
2.27AlaTyr: 2.27 ± 0.036
0.0AlaXaa: 0.0 ± 0.0
Cys
0.969CysAla: 0.969 ± 0.025
0.071CysCys: 0.071 ± 0.008
0.449CysAsp: 0.449 ± 0.015
0.409CysGlu: 0.409 ± 0.016
0.204CysPhe: 0.204 ± 0.01
0.858CysGly: 0.858 ± 0.024
0.188CysHis: 0.188 ± 0.011
0.108CysIle: 0.108 ± 0.007
0.076CysLys: 0.076 ± 0.006
0.692CysLeu: 0.692 ± 0.02
0.122CysMet: 0.122 ± 0.008
0.102CysAsn: 0.102 ± 0.007
0.447CysPro: 0.447 ± 0.017
0.155CysGln: 0.155 ± 0.009
0.491CysArg: 0.491 ± 0.017
0.421CysSer: 0.421 ± 0.014
0.385CysThr: 0.385 ± 0.014
0.684CysVal: 0.684 ± 0.017
0.089CysTrp: 0.089 ± 0.006
0.138CysTyr: 0.138 ± 0.009
0.0CysXaa: 0.0 ± 0.0
Asp
6.761AspAla: 6.761 ± 0.069
0.366AspCys: 0.366 ± 0.013
4.11AspAsp: 4.11 ± 0.057
4.71AspGlu: 4.71 ± 0.056
1.74AspPhe: 1.74 ± 0.031
5.875AspGly: 5.875 ± 0.06
1.999AspHis: 1.999 ± 0.031
1.932AspIle: 1.932 ± 0.031
1.024AspLys: 1.024 ± 0.029
7.262AspLeu: 7.262 ± 0.069
1.047AspMet: 1.047 ± 0.024
1.073AspAsn: 1.073 ± 0.026
5.176AspPro: 5.176 ± 0.059
1.896AspGln: 1.896 ± 0.033
5.32AspArg: 5.32 ± 0.059
2.925AspSer: 2.925 ± 0.043
3.794AspThr: 3.794 ± 0.05
5.005AspVal: 5.005 ± 0.06
0.891AspTrp: 0.891 ± 0.022
1.217AspTyr: 1.217 ± 0.025
0.0AspXaa: 0.0 ± 0.0
Glu
7.731GluAla: 7.731 ± 0.073
0.371GluCys: 0.371 ± 0.015
3.974GluAsp: 3.974 ± 0.052
5.307GluGlu: 5.307 ± 0.073
1.802GluPhe: 1.802 ± 0.033
5.741GluGly: 5.741 ± 0.06
2.147GluHis: 2.147 ± 0.036
2.617GluIle: 2.617 ± 0.037
1.291GluLys: 1.291 ± 0.033
6.991GluLeu: 6.991 ± 0.064
1.15GluMet: 1.15 ± 0.025
1.432GluAsn: 1.432 ± 0.025
3.961GluPro: 3.961 ± 0.057
2.444GluGln: 2.444 ± 0.04
6.627GluArg: 6.627 ± 0.077
3.436GluSer: 3.436 ± 0.041
3.448GluThr: 3.448 ± 0.042
5.423GluVal: 5.423 ± 0.053
0.974GluTrp: 0.974 ± 0.022
1.33GluTyr: 1.33 ± 0.027
0.0GluXaa: 0.0 ± 0.0
Phe
3.546PheAla: 3.546 ± 0.046
0.234PheCys: 0.234 ± 0.012
2.285PheAsp: 2.285 ± 0.036
1.728PheGlu: 1.728 ± 0.032
0.919PhePhe: 0.919 ± 0.026
3.123PheGly: 3.123 ± 0.046
0.701PheHis: 0.701 ± 0.017
0.807PheIle: 0.807 ± 0.024
0.399PheLys: 0.399 ± 0.016
2.862PheLeu: 2.862 ± 0.039
0.471PheMet: 0.471 ± 0.017
0.585PheAsn: 0.585 ± 0.018
1.426PhePro: 1.426 ± 0.024
0.713PheGln: 0.713 ± 0.018
1.673PheArg: 1.673 ± 0.027
1.612PheSer: 1.612 ± 0.031
2.043PheThr: 2.043 ± 0.034
2.481PheVal: 2.481 ± 0.035
0.447PheTrp: 0.447 ± 0.015
0.569PheTyr: 0.569 ± 0.019
0.0PheXaa: 0.0 ± 0.0
Gly
10.193GlyAla: 10.193 ± 0.08
0.71GlyCys: 0.71 ± 0.018
5.461GlyAsp: 5.461 ± 0.068
6.116GlyGlu: 6.116 ± 0.053
2.939GlyPhe: 2.939 ± 0.039
8.37GlyGly: 8.37 ± 0.096
2.3GlyHis: 2.3 ± 0.039
3.339GlyIle: 3.339 ± 0.051
1.837GlyLys: 1.837 ± 0.036
9.28GlyLeu: 9.28 ± 0.08
2.222GlyMet: 2.222 ± 0.032
1.651GlyAsn: 1.651 ± 0.032
5.02GlyPro: 5.02 ± 0.055
2.52GlyGln: 2.52 ± 0.041
7.414GlyArg: 7.414 ± 0.073
5.405GlySer: 5.405 ± 0.055
5.711GlyThr: 5.711 ± 0.056
7.852GlyVal: 7.852 ± 0.069
1.558GlyTrp: 1.558 ± 0.03
2.217GlyTyr: 2.217 ± 0.04
0.0GlyXaa: 0.0 ± 0.0
His
2.45HisAla: 2.45 ± 0.036
0.197HisCys: 0.197 ± 0.012
1.516HisAsp: 1.516 ± 0.029
1.443HisGlu: 1.443 ± 0.029
0.647HisPhe: 0.647 ± 0.017
2.471HisGly: 2.471 ± 0.032
0.84HisHis: 0.84 ± 0.021
0.7HisIle: 0.7 ± 0.017
0.337HisLys: 0.337 ± 0.013
2.757HisLeu: 2.757 ± 0.045
0.438HisMet: 0.438 ± 0.017
0.437HisAsn: 0.437 ± 0.015
1.888HisPro: 1.888 ± 0.033
0.719HisGln: 0.719 ± 0.019
2.373HisArg: 2.373 ± 0.039
1.124HisSer: 1.124 ± 0.024
1.576HisThr: 1.576 ± 0.032
1.935HisVal: 1.935 ± 0.034
0.375HisTrp: 0.375 ± 0.013
0.521HisTyr: 0.521 ± 0.017
0.0HisXaa: 0.0 ± 0.0
Ile
4.823IleAla: 4.823 ± 0.058
0.254IleCys: 0.254 ± 0.011
2.674IleAsp: 2.674 ± 0.034
2.364IleGlu: 2.364 ± 0.037
0.775IlePhe: 0.775 ± 0.023
3.671IleGly: 3.671 ± 0.053
0.65IleHis: 0.65 ± 0.018
1.244IleIle: 1.244 ± 0.032
0.586IleLys: 0.586 ± 0.019
2.816IleLeu: 2.816 ± 0.044
0.621IleMet: 0.621 ± 0.02
0.746IleAsn: 0.746 ± 0.02
1.872IlePro: 1.872 ± 0.032
0.796IleGln: 0.796 ± 0.021
2.284IleArg: 2.284 ± 0.039
1.796IleSer: 1.796 ± 0.033
2.474IleThr: 2.474 ± 0.036
2.959IleVal: 2.959 ± 0.042
0.36IleTrp: 0.36 ± 0.015
0.521IleTyr: 0.521 ± 0.018
0.0IleXaa: 0.0 ± 0.0
Lys
2.197LysAla: 2.197 ± 0.04
0.085LysCys: 0.085 ± 0.007
1.008LysAsp: 1.008 ± 0.023
1.173LysGlu: 1.173 ± 0.027
0.359LysPhe: 0.359 ± 0.014
1.55LysGly: 1.55 ± 0.029
0.424LysHis: 0.424 ± 0.015
0.656LysIle: 0.656 ± 0.021
0.63LysLys: 0.63 ± 0.023
1.525LysLeu: 1.525 ± 0.03
0.356LysMet: 0.356 ± 0.013
0.429LysAsn: 0.429 ± 0.016
1.005LysPro: 1.005 ± 0.027
0.466LysGln: 0.466 ± 0.017
1.434LysArg: 1.434 ± 0.03
0.944LysSer: 0.944 ± 0.022
0.997LysThr: 0.997 ± 0.026
1.674LysVal: 1.674 ± 0.034
0.222LysTrp: 0.222 ± 0.012
0.336LysTyr: 0.336 ± 0.012
0.0LysXaa: 0.0 ± 0.0
Leu
13.44LeuAla: 13.44 ± 0.096
0.805LeuCys: 0.805 ± 0.022
6.913LeuAsp: 6.913 ± 0.066
5.478LeuGlu: 5.478 ± 0.06
3.066LeuPhe: 3.066 ± 0.042
9.201LeuGly: 9.201 ± 0.071
2.22LeuHis: 2.22 ± 0.035
3.626LeuIle: 3.626 ± 0.049
1.577LeuLys: 1.577 ± 0.029
11.184LeuLeu: 11.184 ± 0.106
1.97LeuMet: 1.97 ± 0.034
1.871LeuAsn: 1.871 ± 0.031
6.276LeuPro: 6.276 ± 0.069
1.95LeuGln: 1.95 ± 0.032
8.637LeuArg: 8.637 ± 0.083
6.165LeuSer: 6.165 ± 0.056
6.627LeuThr: 6.627 ± 0.063
9.461LeuVal: 9.461 ± 0.089
1.479LeuTrp: 1.479 ± 0.03
1.846LeuTyr: 1.846 ± 0.034
0.0LeuXaa: 0.0 ± 0.0
Met
2.566MetAla: 2.566 ± 0.035
0.139MetCys: 0.139 ± 0.008
1.15MetAsp: 1.15 ± 0.024
1.055MetGlu: 1.055 ± 0.023
0.582MetPhe: 0.582 ± 0.017
1.641MetGly: 1.641 ± 0.031
0.374MetHis: 0.374 ± 0.014
0.806MetIle: 0.806 ± 0.018
0.35MetLys: 0.35 ± 0.012
1.951MetLeu: 1.951 ± 0.035
0.403MetMet: 0.403 ± 0.016
0.514MetAsn: 0.514 ± 0.015
1.182MetPro: 1.182 ± 0.026
0.388MetGln: 0.388 ± 0.015
1.649MetArg: 1.649 ± 0.031
1.57MetSer: 1.57 ± 0.028
1.511MetThr: 1.511 ± 0.027
1.839MetVal: 1.839 ± 0.032
0.262MetTrp: 0.262 ± 0.013
0.329MetTyr: 0.329 ± 0.013
0.0MetXaa: 0.0 ± 0.0
Asn
2.152AsnAla: 2.152 ± 0.033
0.141AsnCys: 0.141 ± 0.009
1.094AsnAsp: 1.094 ± 0.025
1.108AsnGlu: 1.108 ± 0.026
0.48AsnPhe: 0.48 ± 0.017
1.877AsnGly: 1.877 ± 0.034
0.411AsnHis: 0.411 ± 0.016
0.71AsnIle: 0.71 ± 0.019
0.339AsnLys: 0.339 ± 0.013
1.818AsnLeu: 1.818 ± 0.031
0.363AsnMet: 0.363 ± 0.013
0.427AsnAsn: 0.427 ± 0.016
1.422AsnPro: 1.422 ± 0.028
0.555AsnGln: 0.555 ± 0.019
1.41AsnArg: 1.41 ± 0.028
0.96AsnSer: 0.96 ± 0.022
1.224AsnThr: 1.224 ± 0.028
1.433AsnVal: 1.433 ± 0.028
0.293AsnTrp: 0.293 ± 0.014
0.381AsnTyr: 0.381 ± 0.016
0.0AsnXaa: 0.0 ± 0.0
Pro
6.369ProAla: 6.369 ± 0.068
0.295ProCys: 0.295 ± 0.013
4.674ProAsp: 4.674 ± 0.051
5.669ProGlu: 5.669 ± 0.064
1.594ProPhe: 1.594 ± 0.029
6.168ProGly: 6.168 ± 0.065
1.406ProHis: 1.406 ± 0.027
1.656ProIle: 1.656 ± 0.028
1.075ProLys: 1.075 ± 0.026
5.283ProLeu: 5.283 ± 0.058
1.207ProMet: 1.207 ± 0.023
1.033ProAsn: 1.033 ± 0.027
3.179ProPro: 3.179 ± 0.051
1.469ProGln: 1.469 ± 0.032
4.07ProArg: 4.07 ± 0.05
3.192ProSer: 3.192 ± 0.041
3.584ProThr: 3.584 ± 0.048
5.128ProVal: 5.128 ± 0.057
0.953ProTrp: 0.953 ± 0.023
1.149ProTyr: 1.149 ± 0.027
0.0ProXaa: 0.0 ± 0.0
Gln
3.35GlnAla: 3.35 ± 0.05
0.149GlnCys: 0.149 ± 0.008
1.451GlnAsp: 1.451 ± 0.031
1.762GlnGlu: 1.762 ± 0.033
0.606GlnPhe: 0.606 ± 0.017
2.562GlnGly: 2.562 ± 0.039
0.555GlnHis: 0.555 ± 0.017
1.162GlnIle: 1.162 ± 0.025
0.409GlnLys: 0.409 ± 0.015
2.324GlnLeu: 2.324 ± 0.038
0.556GlnMet: 0.556 ± 0.017
0.568GlnAsn: 0.568 ± 0.018
1.198GlnPro: 1.198 ± 0.028
0.935GlnGln: 0.935 ± 0.032
2.349GlnArg: 2.349 ± 0.034
1.215GlnSer: 1.215 ± 0.025
1.256GlnThr: 1.256 ± 0.028
2.492GlnVal: 2.492 ± 0.041
0.391GlnTrp: 0.391 ± 0.013
0.486GlnTyr: 0.486 ± 0.015
0.0GlnXaa: 0.0 ± 0.0
Arg
9.092ArgAla: 9.092 ± 0.092
0.523ArgCys: 0.523 ± 0.018
4.473ArgAsp: 4.473 ± 0.051
5.459ArgGlu: 5.459 ± 0.056
2.497ArgPhe: 2.497 ± 0.036
5.944ArgGly: 5.944 ± 0.063
2.039ArgHis: 2.039 ± 0.036
3.143ArgIle: 3.143 ± 0.037
1.531ArgLys: 1.531 ± 0.028
8.564ArgLeu: 8.564 ± 0.089
2.026ArgMet: 2.026 ± 0.032
1.386ArgAsn: 1.386 ± 0.026
4.721ArgPro: 4.721 ± 0.056
2.022ArgGln: 2.022 ± 0.037
7.562ArgArg: 7.562 ± 0.074
4.666ArgSer: 4.666 ± 0.056
4.922ArgThr: 4.922 ± 0.052
7.01ArgVal: 7.01 ± 0.071
1.389ArgTrp: 1.389 ± 0.026
1.747ArgTyr: 1.747 ± 0.03
0.0ArgXaa: 0.0 ± 0.0
Ser
6.375SerAla: 6.375 ± 0.062
0.395SerCys: 0.395 ± 0.015
3.25SerAsp: 3.25 ± 0.05
3.466SerGlu: 3.466 ± 0.043
1.571SerPhe: 1.571 ± 0.03
6.124SerGly: 6.124 ± 0.062
1.163SerHis: 1.163 ± 0.024
1.659SerIle: 1.659 ± 0.034
0.914SerLys: 0.914 ± 0.023
5.209SerLeu: 5.209 ± 0.055
1.232SerMet: 1.232 ± 0.027
0.896SerAsn: 0.896 ± 0.024
3.327SerPro: 3.327 ± 0.037
1.319SerGln: 1.319 ± 0.028
3.801SerArg: 3.801 ± 0.047
3.026SerSer: 3.026 ± 0.051
3.381SerThr: 3.381 ± 0.048
4.603SerVal: 4.603 ± 0.054
0.968SerTrp: 0.968 ± 0.023
1.152SerTyr: 1.152 ± 0.023
0.0SerXaa: 0.0 ± 0.0
Thr
7.21ThrAla: 7.21 ± 0.068
0.4ThrCys: 0.4 ± 0.014
4.121ThrAsp: 4.121 ± 0.046
4.181ThrGlu: 4.181 ± 0.054
1.643ThrPhe: 1.643 ± 0.027
6.207ThrGly: 6.207 ± 0.057
1.421ThrHis: 1.421 ± 0.028
2.005ThrIle: 2.005 ± 0.034
0.988ThrLys: 0.988 ± 0.026
6.018ThrLeu: 6.018 ± 0.058
1.153ThrMet: 1.153 ± 0.024
1.097ThrAsn: 1.097 ± 0.025
3.983ThrPro: 3.983 ± 0.047
1.264ThrGln: 1.264 ± 0.03
4.233ThrArg: 4.233 ± 0.05
3.177ThrSer: 3.177 ± 0.039
3.934ThrThr: 3.934 ± 0.051
5.652ThrVal: 5.652 ± 0.056
0.936ThrTrp: 0.936 ± 0.021
1.163ThrTyr: 1.163 ± 0.03
0.0ThrXaa: 0.0 ± 0.0
Val
10.186ValAla: 10.186 ± 0.094
0.736ValCys: 0.736 ± 0.02
5.793ValAsp: 5.793 ± 0.054
5.743ValGlu: 5.743 ± 0.061
2.707ValPhe: 2.707 ± 0.041
7.157ValGly: 7.157 ± 0.069
2.17ValHis: 2.17 ± 0.036
3.156ValIle: 3.156 ± 0.048
1.284ValLys: 1.284 ± 0.029
9.67ValLeu: 9.67 ± 0.083
1.66ValMet: 1.66 ± 0.029
1.676ValAsn: 1.676 ± 0.029
5.077ValPro: 5.077 ± 0.05
1.855ValGln: 1.855 ± 0.032
6.987ValArg: 6.987 ± 0.062
4.68ValSer: 4.68 ± 0.056
5.339ValThr: 5.339 ± 0.055
8.313ValVal: 8.313 ± 0.089
1.246ValTrp: 1.246 ± 0.025
1.607ValTyr: 1.607 ± 0.028
0.0ValXaa: 0.0 ± 0.0
Trp
1.615TrpAla: 1.615 ± 0.029
0.132TrpCys: 0.132 ± 0.008
0.855TrpAsp: 0.855 ± 0.022
0.928TrpGlu: 0.928 ± 0.026
0.541TrpPhe: 0.541 ± 0.017
1.139TrpGly: 1.139 ± 0.025
0.389TrpHis: 0.389 ± 0.015
0.593TrpIle: 0.593 ± 0.016
0.318TrpLys: 0.318 ± 0.013
1.568TrpLeu: 1.568 ± 0.031
0.335TrpMet: 0.335 ± 0.013
0.436TrpAsn: 0.436 ± 0.017
0.766TrpPro: 0.766 ± 0.02
0.465TrpGln: 0.465 ± 0.017
1.398TrpArg: 1.398 ± 0.032
1.037TrpSer: 1.037 ± 0.025
0.889TrpThr: 0.889 ± 0.023
1.158TrpVal: 1.158 ± 0.026
0.408TrpTrp: 0.408 ± 0.016
0.284TrpTyr: 0.284 ± 0.012
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.198TyrAla: 2.198 ± 0.033
0.159TyrCys: 0.159 ± 0.009
1.3TyrAsp: 1.3 ± 0.033
1.208TyrGlu: 1.208 ± 0.025
0.652TyrPhe: 0.652 ± 0.02
1.933TyrGly: 1.933 ± 0.037
0.406TyrHis: 0.406 ± 0.014
0.47TyrIle: 0.47 ± 0.018
0.331TyrLys: 0.331 ± 0.014
2.249TyrLeu: 2.249 ± 0.037
0.317TyrMet: 0.317 ± 0.012
0.368TyrAsn: 0.368 ± 0.014
1.039TyrPro: 1.039 ± 0.023
0.572TyrGln: 0.572 ± 0.018
1.81TyrArg: 1.81 ± 0.031
1.03TyrSer: 1.03 ± 0.024
1.226TyrThr: 1.226 ± 0.026
1.683TyrVal: 1.683 ± 0.028
0.311TyrTrp: 0.311 ± 0.014
0.423TyrTyr: 0.423 ± 0.016
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 6273 proteins (1999419 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