Amino acid dipepetide frequency for Streptomyces sp. So13.3

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
21.949AlaAla: 21.949 ± 0.164
1.097AlaCys: 1.097 ± 0.022
8.36AlaAsp: 8.36 ± 0.069
7.905AlaGlu: 7.905 ± 0.072
3.61AlaPhe: 3.61 ± 0.039
13.41AlaGly: 13.41 ± 0.08
2.778AlaHis: 2.778 ± 0.036
3.862AlaIle: 3.862 ± 0.045
2.966AlaLys: 2.966 ± 0.048
14.467AlaLeu: 14.467 ± 0.101
2.594AlaMet: 2.594 ± 0.035
2.179AlaAsn: 2.179 ± 0.031
6.961AlaPro: 6.961 ± 0.077
3.926AlaGln: 3.926 ± 0.041
9.377AlaArg: 9.377 ± 0.082
6.067AlaSer: 6.067 ± 0.051
7.394AlaThr: 7.394 ± 0.069
12.223AlaVal: 12.223 ± 0.077
1.874AlaTrp: 1.874 ± 0.028
2.719AlaTyr: 2.719 ± 0.034
0.0AlaXaa: 0.0 ± 0.0
Cys
1.073CysAla: 1.073 ± 0.02
0.092CysCys: 0.092 ± 0.007
0.505CysAsp: 0.505 ± 0.014
0.387CysGlu: 0.387 ± 0.012
0.226CysPhe: 0.226 ± 0.01
0.967CysGly: 0.967 ± 0.022
0.2CysHis: 0.2 ± 0.01
0.19CysIle: 0.19 ± 0.008
0.12CysLys: 0.12 ± 0.007
0.776CysLeu: 0.776 ± 0.018
0.135CysMet: 0.135 ± 0.008
0.158CysAsn: 0.158 ± 0.009
0.494CysPro: 0.494 ± 0.015
0.188CysGln: 0.188 ± 0.009
0.612CysArg: 0.612 ± 0.017
0.493CysSer: 0.493 ± 0.014
0.54CysThr: 0.54 ± 0.016
0.649CysVal: 0.649 ± 0.015
0.128CysTrp: 0.128 ± 0.007
0.154CysTyr: 0.154 ± 0.008
0.0CysXaa: 0.0 ± 0.0
Asp
7.677AspAla: 7.677 ± 0.067
0.451AspCys: 0.451 ± 0.013
3.447AspAsp: 3.447 ± 0.039
3.592AspGlu: 3.592 ± 0.047
1.619AspPhe: 1.619 ± 0.028
6.23AspGly: 6.23 ± 0.059
1.458AspHis: 1.458 ± 0.025
1.996AspIle: 1.996 ± 0.028
1.157AspLys: 1.157 ± 0.027
6.3AspLeu: 6.3 ± 0.05
0.784AspMet: 0.784 ± 0.018
1.046AspAsn: 1.046 ± 0.024
4.599AspPro: 4.599 ± 0.048
1.682AspGln: 1.682 ± 0.026
4.833AspArg: 4.833 ± 0.05
2.656AspSer: 2.656 ± 0.034
3.337AspThr: 3.337 ± 0.036
4.444AspVal: 4.444 ± 0.042
1.001AspTrp: 1.001 ± 0.019
1.124AspTyr: 1.124 ± 0.026
0.0AspXaa: 0.0 ± 0.0
Glu
6.634GluAla: 6.634 ± 0.062
0.347GluCys: 0.347 ± 0.011
2.487GluAsp: 2.487 ± 0.036
2.929GluGlu: 2.929 ± 0.038
1.445GluPhe: 1.445 ± 0.023
3.742GluGly: 3.742 ± 0.04
1.481GluHis: 1.481 ± 0.024
2.181GluIle: 2.181 ± 0.031
1.2GluLys: 1.2 ± 0.024
6.557GluLeu: 6.557 ± 0.069
0.858GluMet: 0.858 ± 0.019
1.01GluAsn: 1.01 ± 0.018
3.153GluPro: 3.153 ± 0.041
2.266GluGln: 2.266 ± 0.032
4.868GluArg: 4.868 ± 0.059
2.441GluSer: 2.441 ± 0.031
2.637GluThr: 2.637 ± 0.032
4.026GluVal: 4.026 ± 0.045
0.726GluTrp: 0.726 ± 0.016
1.079GluTyr: 1.079 ± 0.02
0.0GluXaa: 0.0 ± 0.0
Phe
3.772PheAla: 3.772 ± 0.042
0.286PheCys: 0.286 ± 0.009
1.959PheAsp: 1.959 ± 0.031
1.349PheGlu: 1.349 ± 0.024
0.866PhePhe: 0.866 ± 0.021
3.079PheGly: 3.079 ± 0.039
0.648PheHis: 0.648 ± 0.015
0.828PheIle: 0.828 ± 0.017
0.514PheLys: 0.514 ± 0.013
2.554PheLeu: 2.554 ± 0.036
0.394PheMet: 0.394 ± 0.012
0.629PheAsn: 0.629 ± 0.017
1.395PhePro: 1.395 ± 0.026
0.741PheGln: 0.741 ± 0.016
1.78PheArg: 1.78 ± 0.027
1.596PheSer: 1.596 ± 0.026
2.186PheThr: 2.186 ± 0.031
2.081PheVal: 2.081 ± 0.028
0.406PheTrp: 0.406 ± 0.014
0.573PheTyr: 0.573 ± 0.016
0.0PheXaa: 0.0 ± 0.0
Gly
10.876GlyAla: 10.876 ± 0.081
0.893GlyCys: 0.893 ± 0.02
5.101GlyAsp: 5.101 ± 0.045
4.605GlyGlu: 4.605 ± 0.048
2.911GlyPhe: 2.911 ± 0.037
8.764GlyGly: 8.764 ± 0.09
2.295GlyHis: 2.295 ± 0.032
3.72GlyIle: 3.72 ± 0.043
2.433GlyLys: 2.433 ± 0.034
9.45GlyLeu: 9.45 ± 0.072
2.014GlyMet: 2.014 ± 0.029
1.957GlyAsn: 1.957 ± 0.04
5.173GlyPro: 5.173 ± 0.051
2.881GlyGln: 2.881 ± 0.038
7.402GlyArg: 7.402 ± 0.06
5.802GlySer: 5.802 ± 0.057
6.843GlyThr: 6.843 ± 0.073
7.079GlyVal: 7.079 ± 0.056
1.775GlyTrp: 1.775 ± 0.025
2.361GlyTyr: 2.361 ± 0.031
0.0GlyXaa: 0.0 ± 0.0
His
2.69HisAla: 2.69 ± 0.04
0.212HisCys: 0.212 ± 0.01
1.358HisAsp: 1.358 ± 0.026
1.143HisGlu: 1.143 ± 0.019
0.672HisPhe: 0.672 ± 0.018
2.371HisGly: 2.371 ± 0.027
0.706HisHis: 0.706 ± 0.018
0.743HisIle: 0.743 ± 0.018
0.356HisLys: 0.356 ± 0.012
2.468HisLeu: 2.468 ± 0.031
0.316HisMet: 0.316 ± 0.011
0.405HisAsn: 0.405 ± 0.012
1.813HisPro: 1.813 ± 0.025
0.744HisGln: 0.744 ± 0.02
2.04HisArg: 2.04 ± 0.03
1.11HisSer: 1.11 ± 0.023
1.39HisThr: 1.39 ± 0.026
1.569HisVal: 1.569 ± 0.026
0.366HisTrp: 0.366 ± 0.011
0.51HisTyr: 0.51 ± 0.013
0.0HisXaa: 0.0 ± 0.0
Ile
5.209IleAla: 5.209 ± 0.047
0.315IleCys: 0.315 ± 0.011
2.421IleAsp: 2.421 ± 0.03
1.989IleGlu: 1.989 ± 0.027
0.776IlePhe: 0.776 ± 0.02
3.83IleGly: 3.83 ± 0.043
0.694IleHis: 0.694 ± 0.017
1.047IleIle: 1.047 ± 0.023
0.803IleLys: 0.803 ± 0.022
2.617IleLeu: 2.617 ± 0.036
0.478IleMet: 0.478 ± 0.017
0.827IleAsn: 0.827 ± 0.018
1.928IlePro: 1.928 ± 0.024
0.832IleGln: 0.832 ± 0.017
2.322IleArg: 2.322 ± 0.031
1.915IleSer: 1.915 ± 0.03
2.536IleThr: 2.536 ± 0.029
2.876IleVal: 2.876 ± 0.037
0.393IleTrp: 0.393 ± 0.014
0.582IleTyr: 0.582 ± 0.013
0.0IleXaa: 0.0 ± 0.0
Lys
2.914LysAla: 2.914 ± 0.044
0.137LysCys: 0.137 ± 0.008
1.351LysAsp: 1.351 ± 0.025
1.074LysGlu: 1.074 ± 0.026
0.493LysPhe: 0.493 ± 0.018
1.758LysGly: 1.758 ± 0.034
0.458LysHis: 0.458 ± 0.014
0.909LysIle: 0.909 ± 0.022
0.75LysLys: 0.75 ± 0.029
2.059LysLeu: 2.059 ± 0.033
0.385LysMet: 0.385 ± 0.013
0.579LysAsn: 0.579 ± 0.018
1.379LysPro: 1.379 ± 0.03
0.693LysGln: 0.693 ± 0.018
1.395LysArg: 1.395 ± 0.021
1.223LysSer: 1.223 ± 0.023
1.295LysThr: 1.295 ± 0.026
1.879LysVal: 1.879 ± 0.033
0.268LysTrp: 0.268 ± 0.011
0.5LysTyr: 0.5 ± 0.014
0.0LysXaa: 0.0 ± 0.0
Leu
15.059LeuAla: 15.059 ± 0.112
0.833LeuCys: 0.833 ± 0.017
6.659LeuAsp: 6.659 ± 0.063
4.515LeuGlu: 4.515 ± 0.051
2.656LeuPhe: 2.656 ± 0.04
9.268LeuGly: 9.268 ± 0.068
2.386LeuHis: 2.386 ± 0.033
3.59LeuIle: 3.59 ± 0.043
1.986LeuLys: 1.986 ± 0.03
11.514LeuLeu: 11.514 ± 0.1
1.668LeuMet: 1.668 ± 0.025
1.882LeuAsn: 1.882 ± 0.032
6.563LeuPro: 6.563 ± 0.06
2.433LeuGln: 2.433 ± 0.031
8.589LeuArg: 8.589 ± 0.076
5.53LeuSer: 5.53 ± 0.048
6.84LeuThr: 6.84 ± 0.058
8.551LeuVal: 8.551 ± 0.071
1.332LeuTrp: 1.332 ± 0.026
1.861LeuTyr: 1.861 ± 0.026
0.0LeuXaa: 0.0 ± 0.0
Met
2.292MetAla: 2.292 ± 0.033
0.139MetCys: 0.139 ± 0.007
0.909MetAsp: 0.909 ± 0.02
0.744MetGlu: 0.744 ± 0.016
0.462MetPhe: 0.462 ± 0.013
1.32MetGly: 1.32 ± 0.024
0.361MetHis: 0.361 ± 0.013
0.694MetIle: 0.694 ± 0.018
0.422MetLys: 0.422 ± 0.015
1.753MetLeu: 1.753 ± 0.031
0.307MetMet: 0.307 ± 0.012
0.437MetAsn: 0.437 ± 0.013
1.164MetPro: 1.164 ± 0.021
0.458MetGln: 0.458 ± 0.014
1.404MetArg: 1.404 ± 0.024
1.307MetSer: 1.307 ± 0.024
1.547MetThr: 1.547 ± 0.024
1.286MetVal: 1.286 ± 0.025
0.231MetTrp: 0.231 ± 0.01
0.331MetTyr: 0.331 ± 0.013
0.0MetXaa: 0.0 ± 0.0
Asn
2.398AsnAla: 2.398 ± 0.036
0.172AsnCys: 0.172 ± 0.008
1.058AsnAsp: 1.058 ± 0.022
0.857AsnGlu: 0.857 ± 0.018
0.51AsnPhe: 0.51 ± 0.015
2.229AsnGly: 2.229 ± 0.041
0.432AsnHis: 0.432 ± 0.013
0.73AsnIle: 0.73 ± 0.018
0.431AsnLys: 0.431 ± 0.014
1.838AsnLeu: 1.838 ± 0.029
0.315AsnMet: 0.315 ± 0.011
0.497AsnAsn: 0.497 ± 0.018
1.47AsnPro: 1.47 ± 0.029
0.609AsnGln: 0.609 ± 0.016
1.368AsnArg: 1.368 ± 0.022
1.092AsnSer: 1.092 ± 0.024
1.311AsnThr: 1.311 ± 0.03
1.493AsnVal: 1.493 ± 0.027
0.347AsnTrp: 0.347 ± 0.013
0.459AsnTyr: 0.459 ± 0.013
0.0AsnXaa: 0.0 ± 0.0
Pro
9.031ProAla: 9.031 ± 0.071
0.345ProCys: 0.345 ± 0.012
4.444ProAsp: 4.444 ± 0.046
3.821ProGlu: 3.821 ± 0.041
1.534ProPhe: 1.534 ± 0.025
6.646ProGly: 6.646 ± 0.057
1.349ProHis: 1.349 ± 0.025
1.42ProIle: 1.42 ± 0.024
1.247ProLys: 1.247 ± 0.027
5.325ProLeu: 5.325 ± 0.058
1.002ProMet: 1.002 ± 0.018
1.033ProAsn: 1.033 ± 0.023
3.51ProPro: 3.51 ± 0.055
1.899ProGln: 1.899 ± 0.037
3.73ProArg: 3.73 ± 0.042
3.301ProSer: 3.301 ± 0.038
3.327ProThr: 3.327 ± 0.041
5.477ProVal: 5.477 ± 0.053
0.925ProTrp: 0.925 ± 0.02
1.387ProTyr: 1.387 ± 0.024
0.0ProXaa: 0.0 ± 0.0
Gln
3.906GlnAla: 3.906 ± 0.041
0.186GlnCys: 0.186 ± 0.008
1.574GlnAsp: 1.574 ± 0.029
1.444GlnGlu: 1.444 ± 0.025
0.746GlnPhe: 0.746 ± 0.017
2.409GlnGly: 2.409 ± 0.031
0.738GlnHis: 0.738 ± 0.019
1.214GlnIle: 1.214 ± 0.021
0.606GlnLys: 0.606 ± 0.018
3.343GlnLeu: 3.343 ± 0.037
0.489GlnMet: 0.489 ± 0.013
0.583GlnAsn: 0.583 ± 0.016
1.812GlnPro: 1.812 ± 0.032
1.421GlnGln: 1.421 ± 0.036
2.466GlnArg: 2.466 ± 0.033
1.428GlnSer: 1.428 ± 0.022
1.451GlnThr: 1.451 ± 0.025
2.559GlnVal: 2.559 ± 0.035
0.553GlnTrp: 0.553 ± 0.015
0.676GlnTyr: 0.676 ± 0.018
0.0GlnXaa: 0.0 ± 0.0
Arg
9.168ArgAla: 9.168 ± 0.082
0.588ArgCys: 0.588 ± 0.015
4.143ArgAsp: 4.143 ± 0.046
4.162ArgGlu: 4.162 ± 0.05
2.236ArgPhe: 2.236 ± 0.03
5.415ArgGly: 5.415 ± 0.051
1.98ArgHis: 1.98 ± 0.031
3.363ArgIle: 3.363 ± 0.036
1.631ArgLys: 1.631 ± 0.026
8.414ArgLeu: 8.414 ± 0.071
1.719ArgMet: 1.719 ± 0.027
1.453ArgAsn: 1.453 ± 0.02
4.739ArgPro: 4.739 ± 0.051
2.349ArgGln: 2.349 ± 0.034
7.151ArgArg: 7.151 ± 0.077
4.19ArgSer: 4.19 ± 0.042
5.308ArgThr: 5.308 ± 0.048
5.311ArgVal: 5.311 ± 0.046
1.389ArgTrp: 1.389 ± 0.031
1.785ArgTyr: 1.785 ± 0.03
0.0ArgXaa: 0.0 ± 0.0
Ser
7.073SerAla: 7.073 ± 0.055
0.449SerCys: 0.449 ± 0.013
2.895SerAsp: 2.895 ± 0.033
2.336SerGlu: 2.336 ± 0.033
1.601SerPhe: 1.601 ± 0.025
6.245SerGly: 6.245 ± 0.063
1.09SerHis: 1.09 ± 0.018
1.652SerIle: 1.652 ± 0.029
1.1SerLys: 1.1 ± 0.022
4.879SerLeu: 4.879 ± 0.048
1.148SerMet: 1.148 ± 0.02
1.052SerAsn: 1.052 ± 0.025
3.266SerPro: 3.266 ± 0.038
1.441SerGln: 1.441 ± 0.026
3.691SerArg: 3.691 ± 0.043
3.201SerSer: 3.201 ± 0.046
3.433SerThr: 3.433 ± 0.044
4.428SerVal: 4.428 ± 0.042
0.994SerTrp: 0.994 ± 0.021
1.362SerTyr: 1.362 ± 0.027
0.0SerXaa: 0.0 ± 0.0
Thr
9.372ThrAla: 9.372 ± 0.07
0.425ThrCys: 0.425 ± 0.015
3.763ThrAsp: 3.763 ± 0.049
3.023ThrGlu: 3.023 ± 0.034
1.718ThrPhe: 1.718 ± 0.031
7.081ThrGly: 7.081 ± 0.068
1.229ThrHis: 1.229 ± 0.024
1.966ThrIle: 1.966 ± 0.032
1.259ThrLys: 1.259 ± 0.028
5.828ThrLeu: 5.828 ± 0.054
0.974ThrMet: 0.974 ± 0.021
1.14ThrAsn: 1.14 ± 0.024
4.21ThrPro: 4.21 ± 0.042
1.508ThrGln: 1.508 ± 0.024
3.809ThrArg: 3.809 ± 0.04
3.506ThrSer: 3.506 ± 0.052
4.313ThrThr: 4.313 ± 0.067
6.273ThrVal: 6.273 ± 0.058
0.963ThrTrp: 0.963 ± 0.022
1.394ThrTyr: 1.394 ± 0.031
0.0ThrXaa: 0.0 ± 0.0
Val
10.253ValAla: 10.253 ± 0.068
0.761ValCys: 0.761 ± 0.017
4.637ValAsp: 4.637 ± 0.04
4.34ValGlu: 4.34 ± 0.049
2.374ValPhe: 2.374 ± 0.034
6.283ValGly: 6.283 ± 0.057
1.918ValHis: 1.918 ± 0.029
3.103ValIle: 3.103 ± 0.037
1.746ValLys: 1.746 ± 0.029
9.558ValLeu: 9.558 ± 0.067
1.431ValMet: 1.431 ± 0.027
1.807ValAsn: 1.807 ± 0.032
5.178ValPro: 5.178 ± 0.046
2.179ValGln: 2.179 ± 0.025
6.562ValArg: 6.562 ± 0.057
4.356ValSer: 4.356 ± 0.044
5.646ValThr: 5.646 ± 0.057
7.494ValVal: 7.494 ± 0.067
1.114ValTrp: 1.114 ± 0.024
1.537ValTyr: 1.537 ± 0.025
0.0ValXaa: 0.0 ± 0.0
Trp
1.654TrpAla: 1.654 ± 0.026
0.168TrpCys: 0.168 ± 0.008
0.861TrpAsp: 0.861 ± 0.021
0.705TrpGlu: 0.705 ± 0.017
0.516TrpPhe: 0.516 ± 0.015
1.064TrpGly: 1.064 ± 0.022
0.392TrpHis: 0.392 ± 0.012
0.615TrpIle: 0.615 ± 0.016
0.397TrpLys: 0.397 ± 0.015
1.783TrpLeu: 1.783 ± 0.031
0.309TrpMet: 0.309 ± 0.01
0.444TrpAsn: 0.444 ± 0.015
0.783TrpPro: 0.783 ± 0.017
0.673TrpGln: 0.673 ± 0.017
1.258TrpArg: 1.258 ± 0.023
1.075TrpSer: 1.075 ± 0.023
1.113TrpThr: 1.113 ± 0.024
0.988TrpVal: 0.988 ± 0.022
0.334TrpTrp: 0.334 ± 0.011
0.37TrpTyr: 0.37 ± 0.012
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.721TyrAla: 2.721 ± 0.03
0.188TyrCys: 0.188 ± 0.008
1.504TyrAsp: 1.504 ± 0.031
1.151TyrGlu: 1.151 ± 0.021
0.664TyrPhe: 0.664 ± 0.016
2.221TyrGly: 2.221 ± 0.031
0.388TyrHis: 0.388 ± 0.011
0.566TyrIle: 0.566 ± 0.015
0.374TyrLys: 0.374 ± 0.014
2.234TyrLeu: 2.234 ± 0.034
0.247TyrMet: 0.247 ± 0.011
0.499TyrAsn: 0.499 ± 0.018
1.163TyrPro: 1.163 ± 0.023
0.683TyrGln: 0.683 ± 0.016
1.835TyrArg: 1.835 ± 0.024
1.045TyrSer: 1.045 ± 0.021
1.303TyrThr: 1.303 ± 0.028
1.591TyrVal: 1.591 ± 0.027
0.386TyrTrp: 0.386 ± 0.014
0.472TyrTyr: 0.472 ± 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 7990 proteins (2631408 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