Amino acid dipepetide frequency for Streptomyces corynorhini

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
21.922AlaAla: 21.922 ± 0.161
1.026AlaCys: 1.026 ± 0.021
8.46AlaAsp: 8.46 ± 0.074
8.855AlaGlu: 8.855 ± 0.09
3.529AlaPhe: 3.529 ± 0.038
13.58AlaGly: 13.58 ± 0.1
3.004AlaHis: 3.004 ± 0.035
3.371AlaIle: 3.371 ± 0.048
2.769AlaLys: 2.769 ± 0.055
15.113AlaLeu: 15.113 ± 0.114
2.485AlaMet: 2.485 ± 0.037
1.837AlaAsn: 1.837 ± 0.036
7.695AlaPro: 7.695 ± 0.08
3.481AlaGln: 3.481 ± 0.044
10.788AlaArg: 10.788 ± 0.08
6.125AlaSer: 6.125 ± 0.064
7.307AlaThr: 7.307 ± 0.065
12.292AlaVal: 12.292 ± 0.098
1.811AlaTrp: 1.811 ± 0.029
2.688AlaTyr: 2.688 ± 0.038
0.0AlaXaa: 0.0 ± 0.0
Cys
1.142CysAla: 1.142 ± 0.025
0.083CysCys: 0.083 ± 0.006
0.511CysAsp: 0.511 ± 0.016
0.384CysGlu: 0.384 ± 0.013
0.227CysPhe: 0.227 ± 0.011
0.923CysGly: 0.923 ± 0.021
0.185CysHis: 0.185 ± 0.011
0.124CysIle: 0.124 ± 0.008
0.106CysLys: 0.106 ± 0.006
0.713CysLeu: 0.713 ± 0.017
0.11CysMet: 0.11 ± 0.008
0.118CysAsn: 0.118 ± 0.007
0.459CysPro: 0.459 ± 0.016
0.146CysGln: 0.146 ± 0.009
0.578CysArg: 0.578 ± 0.018
0.432CysSer: 0.432 ± 0.014
0.425CysThr: 0.425 ± 0.015
0.694CysVal: 0.694 ± 0.018
0.129CysTrp: 0.129 ± 0.008
0.149CysTyr: 0.149 ± 0.01
0.0CysXaa: 0.0 ± 0.0
Asp
7.92AspAla: 7.92 ± 0.076
0.375AspCys: 0.375 ± 0.014
3.445AspAsp: 3.445 ± 0.047
3.76AspGlu: 3.76 ± 0.047
1.614AspPhe: 1.614 ± 0.028
6.567AspGly: 6.567 ± 0.06
1.395AspHis: 1.395 ± 0.027
1.941AspIle: 1.941 ± 0.037
1.163AspLys: 1.163 ± 0.031
5.935AspLeu: 5.935 ± 0.058
0.762AspMet: 0.762 ± 0.021
0.921AspAsn: 0.921 ± 0.023
4.494AspPro: 4.494 ± 0.044
1.552AspGln: 1.552 ± 0.028
5.095AspArg: 5.095 ± 0.057
2.727AspSer: 2.727 ± 0.039
3.297AspThr: 3.297 ± 0.04
4.348AspVal: 4.348 ± 0.043
0.983AspTrp: 0.983 ± 0.023
1.089AspTyr: 1.089 ± 0.023
0.0AspXaa: 0.0 ± 0.0
Glu
7.2GluAla: 7.2 ± 0.079
0.377GluCys: 0.377 ± 0.012
2.656GluAsp: 2.656 ± 0.038
3.446GluGlu: 3.446 ± 0.05
1.416GluPhe: 1.416 ± 0.026
4.356GluGly: 4.356 ± 0.042
1.401GluHis: 1.401 ± 0.027
2.243GluIle: 2.243 ± 0.039
1.436GluLys: 1.436 ± 0.032
6.733GluLeu: 6.733 ± 0.049
0.891GluMet: 0.891 ± 0.019
1.024GluAsn: 1.024 ± 0.029
3.461GluPro: 3.461 ± 0.048
2.006GluGln: 2.006 ± 0.032
5.862GluArg: 5.862 ± 0.061
2.834GluSer: 2.834 ± 0.042
2.928GluThr: 2.928 ± 0.035
4.338GluVal: 4.338 ± 0.049
0.754GluTrp: 0.754 ± 0.019
1.059GluTyr: 1.059 ± 0.023
0.0GluXaa: 0.0 ± 0.0
Phe
3.699PheAla: 3.699 ± 0.044
0.265PheCys: 0.265 ± 0.012
1.935PheAsp: 1.935 ± 0.031
1.368PheGlu: 1.368 ± 0.028
0.894PhePhe: 0.894 ± 0.021
3.054PheGly: 3.054 ± 0.039
0.598PheHis: 0.598 ± 0.02
0.718PheIle: 0.718 ± 0.018
0.518PheLys: 0.518 ± 0.016
2.601PheLeu: 2.601 ± 0.038
0.389PheMet: 0.389 ± 0.013
0.538PheAsn: 0.538 ± 0.016
1.401PhePro: 1.401 ± 0.028
0.678PheGln: 0.678 ± 0.018
1.816PheArg: 1.816 ± 0.028
1.527PheSer: 1.527 ± 0.027
2.016PheThr: 2.016 ± 0.035
2.175PheVal: 2.175 ± 0.037
0.412PheTrp: 0.412 ± 0.015
0.566PheTyr: 0.566 ± 0.018
0.0PheXaa: 0.0 ± 0.0
Gly
12.322GlyAla: 12.322 ± 0.089
0.819GlyCys: 0.819 ± 0.022
5.201GlyAsp: 5.201 ± 0.055
5.25GlyGlu: 5.25 ± 0.059
2.87GlyPhe: 2.87 ± 0.038
9.565GlyGly: 9.565 ± 0.097
2.361GlyHis: 2.361 ± 0.031
3.421GlyIle: 3.421 ± 0.043
2.368GlyLys: 2.368 ± 0.041
9.463GlyLeu: 9.463 ± 0.086
1.96GlyMet: 1.96 ± 0.031
1.681GlyAsn: 1.681 ± 0.035
5.597GlyPro: 5.597 ± 0.065
2.672GlyGln: 2.672 ± 0.041
8.163GlyArg: 8.163 ± 0.072
5.732GlySer: 5.732 ± 0.067
6.623GlyThr: 6.623 ± 0.067
7.634GlyVal: 7.634 ± 0.061
1.667GlyTrp: 1.667 ± 0.03
2.324GlyTyr: 2.324 ± 0.039
0.0GlyXaa: 0.0 ± 0.0
His
2.617HisAla: 2.617 ± 0.038
0.205HisCys: 0.205 ± 0.011
1.304HisAsp: 1.304 ± 0.025
1.179HisGlu: 1.179 ± 0.027
0.662HisPhe: 0.662 ± 0.018
2.351HisGly: 2.351 ± 0.039
0.685HisHis: 0.685 ± 0.019
0.642HisIle: 0.642 ± 0.019
0.301HisLys: 0.301 ± 0.012
2.278HisLeu: 2.278 ± 0.031
0.312HisMet: 0.312 ± 0.013
0.355HisAsn: 0.355 ± 0.014
1.761HisPro: 1.761 ± 0.031
0.632HisGln: 0.632 ± 0.018
2.09HisArg: 2.09 ± 0.035
1.006HisSer: 1.006 ± 0.024
1.364HisThr: 1.364 ± 0.024
1.586HisVal: 1.586 ± 0.027
0.351HisTrp: 0.351 ± 0.014
0.482HisTyr: 0.482 ± 0.019
0.0HisXaa: 0.0 ± 0.0
Ile
4.715IleAla: 4.715 ± 0.058
0.293IleCys: 0.293 ± 0.012
2.179IleAsp: 2.179 ± 0.036
1.945IleGlu: 1.945 ± 0.032
0.712IlePhe: 0.712 ± 0.02
3.583IleGly: 3.583 ± 0.042
0.6IleHis: 0.6 ± 0.017
0.853IleIle: 0.853 ± 0.022
0.757IleLys: 0.757 ± 0.02
2.362IleLeu: 2.362 ± 0.036
0.44IleMet: 0.44 ± 0.015
0.657IleAsn: 0.657 ± 0.017
1.729IlePro: 1.729 ± 0.03
0.681IleGln: 0.681 ± 0.021
2.191IleArg: 2.191 ± 0.035
1.761IleSer: 1.761 ± 0.03
2.189IleThr: 2.189 ± 0.032
2.655IleVal: 2.655 ± 0.039
0.38IleTrp: 0.38 ± 0.012
0.5IleTyr: 0.5 ± 0.018
0.0IleXaa: 0.0 ± 0.0
Lys
2.746LysAla: 2.746 ± 0.045
0.126LysCys: 0.126 ± 0.008
1.345LysAsp: 1.345 ± 0.034
1.204LysGlu: 1.204 ± 0.029
0.451LysPhe: 0.451 ± 0.015
1.819LysGly: 1.819 ± 0.03
0.372LysHis: 0.372 ± 0.016
0.848LysIle: 0.848 ± 0.022
0.897LysLys: 0.897 ± 0.03
1.909LysLeu: 1.909 ± 0.039
0.369LysMet: 0.369 ± 0.014
0.554LysAsn: 0.554 ± 0.018
1.267LysPro: 1.267 ± 0.029
0.621LysGln: 0.621 ± 0.019
1.432LysArg: 1.432 ± 0.028
1.184LysSer: 1.184 ± 0.029
1.274LysThr: 1.274 ± 0.034
1.756LysVal: 1.756 ± 0.035
0.255LysTrp: 0.255 ± 0.012
0.431LysTyr: 0.431 ± 0.013
0.0LysXaa: 0.0 ± 0.0
Leu
15.089LeuAla: 15.089 ± 0.111
0.84LeuCys: 0.84 ± 0.021
6.7LeuAsp: 6.7 ± 0.062
4.561LeuGlu: 4.561 ± 0.047
2.592LeuPhe: 2.592 ± 0.045
9.349LeuGly: 9.349 ± 0.078
2.148LeuHis: 2.148 ± 0.03
3.414LeuIle: 3.414 ± 0.05
1.97LeuLys: 1.97 ± 0.033
11.239LeuLeu: 11.239 ± 0.115
1.615LeuMet: 1.615 ± 0.029
1.663LeuAsn: 1.663 ± 0.03
6.552LeuPro: 6.552 ± 0.07
1.948LeuGln: 1.948 ± 0.027
8.839LeuArg: 8.839 ± 0.078
5.537LeuSer: 5.537 ± 0.054
6.937LeuThr: 6.937 ± 0.065
8.607LeuVal: 8.607 ± 0.076
1.268LeuTrp: 1.268 ± 0.027
1.877LeuTyr: 1.877 ± 0.031
0.0LeuXaa: 0.0 ± 0.0
Met
2.257MetAla: 2.257 ± 0.035
0.131MetCys: 0.131 ± 0.007
0.871MetAsp: 0.871 ± 0.022
0.749MetGlu: 0.749 ± 0.018
0.457MetPhe: 0.457 ± 0.014
1.286MetGly: 1.286 ± 0.026
0.287MetHis: 0.287 ± 0.012
0.683MetIle: 0.683 ± 0.019
0.409MetLys: 0.409 ± 0.014
1.593MetLeu: 1.593 ± 0.032
0.293MetMet: 0.293 ± 0.013
0.425MetAsn: 0.425 ± 0.013
1.046MetPro: 1.046 ± 0.024
0.362MetGln: 0.362 ± 0.014
1.386MetArg: 1.386 ± 0.024
1.312MetSer: 1.312 ± 0.026
1.498MetThr: 1.498 ± 0.026
1.269MetVal: 1.269 ± 0.026
0.202MetTrp: 0.202 ± 0.01
0.321MetTyr: 0.321 ± 0.013
0.0MetXaa: 0.0 ± 0.0
Asn
2.14AsnAla: 2.14 ± 0.035
0.164AsnCys: 0.164 ± 0.009
0.895AsnAsp: 0.895 ± 0.02
0.788AsnGlu: 0.788 ± 0.022
0.493AsnPhe: 0.493 ± 0.015
1.87AsnGly: 1.87 ± 0.033
0.361AsnHis: 0.361 ± 0.013
0.648AsnIle: 0.648 ± 0.017
0.397AsnLys: 0.397 ± 0.013
1.558AsnLeu: 1.558 ± 0.031
0.279AsnMet: 0.279 ± 0.012
0.393AsnAsn: 0.393 ± 0.014
1.254AsnPro: 1.254 ± 0.029
0.499AsnGln: 0.499 ± 0.017
1.204AsnArg: 1.204 ± 0.027
0.983AsnSer: 0.983 ± 0.022
1.107AsnThr: 1.107 ± 0.028
1.335AsnVal: 1.335 ± 0.028
0.274AsnTrp: 0.274 ± 0.012
0.403AsnTyr: 0.403 ± 0.015
0.0AsnXaa: 0.0 ± 0.0
Pro
8.993ProAla: 8.993 ± 0.083
0.327ProCys: 0.327 ± 0.013
4.457ProAsp: 4.457 ± 0.053
4.329ProGlu: 4.329 ± 0.056
1.541ProPhe: 1.541 ± 0.029
7.138ProGly: 7.138 ± 0.072
1.373ProHis: 1.373 ± 0.028
1.193ProIle: 1.193 ± 0.025
1.098ProLys: 1.098 ± 0.027
5.47ProLeu: 5.47 ± 0.06
0.945ProMet: 0.945 ± 0.024
0.857ProAsn: 0.857 ± 0.023
3.613ProPro: 3.613 ± 0.063
1.528ProGln: 1.528 ± 0.032
4.278ProArg: 4.278 ± 0.051
3.281ProSer: 3.281 ± 0.044
3.145ProThr: 3.145 ± 0.042
5.73ProVal: 5.73 ± 0.06
0.878ProTrp: 0.878 ± 0.022
1.445ProTyr: 1.445 ± 0.029
0.001ProXaa: 0.001 ± 0.001
Gln
3.293GlnAla: 3.293 ± 0.049
0.144GlnCys: 0.144 ± 0.008
1.419GlnAsp: 1.419 ± 0.026
1.387GlnGlu: 1.387 ± 0.03
0.661GlnPhe: 0.661 ± 0.018
2.197GlnGly: 2.197 ± 0.035
0.578GlnHis: 0.578 ± 0.018
1.047GlnIle: 1.047 ± 0.023
0.551GlnLys: 0.551 ± 0.017
2.921GlnLeu: 2.921 ± 0.036
0.413GlnMet: 0.413 ± 0.016
0.503GlnAsn: 0.503 ± 0.017
1.512GlnPro: 1.512 ± 0.034
1.167GlnGln: 1.167 ± 0.044
2.366GlnArg: 2.366 ± 0.035
1.273GlnSer: 1.273 ± 0.029
1.227GlnThr: 1.227 ± 0.027
2.094GlnVal: 2.094 ± 0.031
0.423GlnTrp: 0.423 ± 0.014
0.569GlnTyr: 0.569 ± 0.018
0.0GlnXaa: 0.0 ± 0.0
Arg
10.53ArgAla: 10.53 ± 0.09
0.609ArgCys: 0.609 ± 0.018
4.495ArgAsp: 4.495 ± 0.05
4.879ArgGlu: 4.879 ± 0.055
2.298ArgPhe: 2.298 ± 0.032
6.332ArgGly: 6.332 ± 0.058
2.044ArgHis: 2.044 ± 0.03
3.177ArgIle: 3.177 ± 0.041
1.566ArgLys: 1.566 ± 0.032
8.938ArgLeu: 8.938 ± 0.077
1.709ArgMet: 1.709 ± 0.031
1.293ArgAsn: 1.293 ± 0.024
5.205ArgPro: 5.205 ± 0.06
2.236ArgGln: 2.236 ± 0.035
7.884ArgArg: 7.884 ± 0.079
4.109ArgSer: 4.109 ± 0.048
5.71ArgThr: 5.71 ± 0.055
6.086ArgVal: 6.086 ± 0.062
1.396ArgTrp: 1.396 ± 0.028
1.799ArgTyr: 1.799 ± 0.031
0.0ArgXaa: 0.0 ± 0.0
Ser
7.316SerAla: 7.316 ± 0.068
0.394SerCys: 0.394 ± 0.014
2.851SerAsp: 2.851 ± 0.045
2.403SerGlu: 2.403 ± 0.03
1.619SerPhe: 1.619 ± 0.027
6.577SerGly: 6.577 ± 0.079
1.018SerHis: 1.018 ± 0.024
1.376SerIle: 1.376 ± 0.03
1.015SerLys: 1.015 ± 0.027
4.92SerLeu: 4.92 ± 0.053
1.027SerMet: 1.027 ± 0.023
0.871SerAsn: 0.871 ± 0.022
3.221SerPro: 3.221 ± 0.04
1.193SerGln: 1.193 ± 0.026
3.781SerArg: 3.781 ± 0.042
2.978SerSer: 2.978 ± 0.057
3.103SerThr: 3.103 ± 0.039
4.538SerVal: 4.538 ± 0.043
0.932SerTrp: 0.932 ± 0.02
1.231SerTyr: 1.231 ± 0.027
0.0SerXaa: 0.0 ± 0.0
Thr
9.249ThrAla: 9.249 ± 0.065
0.389ThrCys: 0.389 ± 0.014
3.652ThrAsp: 3.652 ± 0.044
3.335ThrGlu: 3.335 ± 0.041
1.608ThrPhe: 1.608 ± 0.029
7.221ThrGly: 7.221 ± 0.073
1.184ThrHis: 1.184 ± 0.023
1.627ThrIle: 1.627 ± 0.03
1.139ThrLys: 1.139 ± 0.029
5.823ThrLeu: 5.823 ± 0.056
0.905ThrMet: 0.905 ± 0.021
0.957ThrAsn: 0.957 ± 0.025
4.157ThrPro: 4.157 ± 0.05
1.246ThrGln: 1.246 ± 0.024
3.962ThrArg: 3.962 ± 0.042
3.215ThrSer: 3.215 ± 0.037
3.809ThrThr: 3.809 ± 0.053
6.181ThrVal: 6.181 ± 0.056
0.82ThrTrp: 0.82 ± 0.019
1.338ThrTyr: 1.338 ± 0.027
0.0ThrXaa: 0.0 ± 0.0
Val
10.62ValAla: 10.62 ± 0.084
0.751ValCys: 0.751 ± 0.02
4.768ValAsp: 4.768 ± 0.052
4.641ValGlu: 4.641 ± 0.051
2.438ValPhe: 2.438 ± 0.04
6.525ValGly: 6.525 ± 0.062
1.815ValHis: 1.815 ± 0.033
2.838ValIle: 2.838 ± 0.04
1.678ValLys: 1.678 ± 0.03
9.324ValLeu: 9.324 ± 0.084
1.422ValMet: 1.422 ± 0.026
1.594ValAsn: 1.594 ± 0.033
5.339ValPro: 5.339 ± 0.05
1.927ValGln: 1.927 ± 0.03
7.415ValArg: 7.415 ± 0.057
4.454ValSer: 4.454 ± 0.052
5.643ValThr: 5.643 ± 0.055
7.732ValVal: 7.732 ± 0.071
1.139ValTrp: 1.139 ± 0.023
1.513ValTyr: 1.513 ± 0.027
0.0ValXaa: 0.0 ± 0.0
Trp
1.588TrpAla: 1.588 ± 0.029
0.157TrpCys: 0.157 ± 0.008
0.775TrpAsp: 0.775 ± 0.018
0.714TrpGlu: 0.714 ± 0.02
0.471TrpPhe: 0.471 ± 0.015
1.065TrpGly: 1.065 ± 0.023
0.353TrpHis: 0.353 ± 0.013
0.539TrpIle: 0.539 ± 0.014
0.356TrpLys: 0.356 ± 0.015
1.747TrpLeu: 1.747 ± 0.036
0.277TrpMet: 0.277 ± 0.011
0.397TrpAsn: 0.397 ± 0.014
0.794TrpPro: 0.794 ± 0.02
0.579TrpGln: 0.579 ± 0.016
1.349TrpArg: 1.349 ± 0.031
0.951TrpSer: 0.951 ± 0.022
1.044TrpThr: 1.044 ± 0.024
0.901TrpVal: 0.901 ± 0.019
0.332TrpTrp: 0.332 ± 0.013
0.353TrpTyr: 0.353 ± 0.012
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.779TyrAla: 2.779 ± 0.041
0.165TyrCys: 0.165 ± 0.008
1.465TyrAsp: 1.465 ± 0.033
1.244TyrGlu: 1.244 ± 0.026
0.615TyrPhe: 0.615 ± 0.019
2.332TyrGly: 2.332 ± 0.035
0.401TyrHis: 0.401 ± 0.014
0.482TyrIle: 0.482 ± 0.017
0.366TyrLys: 0.366 ± 0.017
2.103TyrLeu: 2.103 ± 0.03
0.231TyrMet: 0.231 ± 0.011
0.408TyrAsn: 0.408 ± 0.015
1.061TyrPro: 1.061 ± 0.021
0.593TyrGln: 0.593 ± 0.017
1.815TyrArg: 1.815 ± 0.03
0.943TyrSer: 0.943 ± 0.023
1.171TyrThr: 1.171 ± 0.024
1.624TyrVal: 1.624 ± 0.028
0.339TyrTrp: 0.339 ± 0.013
0.436TyrTyr: 0.436 ± 0.017
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 6445 proteins (2146243 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