Amino acid dipepetide frequency for Streptomyces sp. WMMB 714

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
21.587AlaAla: 21.587 ± 0.175
1.102AlaCys: 1.102 ± 0.029
7.893AlaAsp: 7.893 ± 0.071
9.367AlaGlu: 9.367 ± 0.095
3.331AlaPhe: 3.331 ± 0.046
14.236AlaGly: 14.236 ± 0.122
2.646AlaHis: 2.646 ± 0.044
2.722AlaIle: 2.722 ± 0.041
2.768AlaLys: 2.768 ± 0.058
13.741AlaLeu: 13.741 ± 0.118
2.502AlaMet: 2.502 ± 0.037
1.756AlaAsn: 1.756 ± 0.034
7.332AlaPro: 7.332 ± 0.081
3.752AlaGln: 3.752 ± 0.05
10.431AlaArg: 10.431 ± 0.09
6.324AlaSer: 6.324 ± 0.059
5.931AlaThr: 5.931 ± 0.063
12.249AlaVal: 12.249 ± 0.104
1.722AlaTrp: 1.722 ± 0.03
2.556AlaTyr: 2.556 ± 0.035
0.0AlaXaa: 0.0 ± 0.0
Cys
1.125CysAla: 1.125 ± 0.028
0.109CysCys: 0.109 ± 0.01
0.485CysAsp: 0.485 ± 0.016
0.442CysGlu: 0.442 ± 0.017
0.217CysPhe: 0.217 ± 0.012
1.052CysGly: 1.052 ± 0.033
0.197CysHis: 0.197 ± 0.011
0.172CysIle: 0.172 ± 0.009
0.119CysLys: 0.119 ± 0.01
0.749CysLeu: 0.749 ± 0.02
0.145CysMet: 0.145 ± 0.009
0.134CysAsn: 0.134 ± 0.008
0.501CysPro: 0.501 ± 0.018
0.157CysGln: 0.157 ± 0.01
0.657CysArg: 0.657 ± 0.021
0.486CysSer: 0.486 ± 0.018
0.529CysThr: 0.529 ± 0.016
0.721CysVal: 0.721 ± 0.019
0.135CysTrp: 0.135 ± 0.01
0.166CysTyr: 0.166 ± 0.01
0.0CysXaa: 0.0 ± 0.0
Asp
7.73AspAla: 7.73 ± 0.073
0.41AspCys: 0.41 ± 0.015
3.411AspAsp: 3.411 ± 0.046
4.306AspGlu: 4.306 ± 0.053
1.671AspPhe: 1.671 ± 0.032
6.995AspGly: 6.995 ± 0.072
1.236AspHis: 1.236 ± 0.025
1.679AspIle: 1.679 ± 0.034
1.173AspLys: 1.173 ± 0.031
5.438AspLeu: 5.438 ± 0.053
0.851AspMet: 0.851 ± 0.019
0.836AspAsn: 0.836 ± 0.022
4.325AspPro: 4.325 ± 0.058
1.363AspGln: 1.363 ± 0.031
4.533AspArg: 4.533 ± 0.05
2.801AspSer: 2.801 ± 0.043
2.677AspThr: 2.677 ± 0.04
4.893AspVal: 4.893 ± 0.05
0.917AspTrp: 0.917 ± 0.022
1.044AspTyr: 1.044 ± 0.027
0.0AspXaa: 0.0 ± 0.0
Glu
8.087GluAla: 8.087 ± 0.097
0.453GluCys: 0.453 ± 0.015
3.319GluAsp: 3.319 ± 0.048
4.422GluGlu: 4.422 ± 0.066
1.526GluPhe: 1.526 ± 0.029
5.232GluGly: 5.232 ± 0.055
1.614GluHis: 1.614 ± 0.034
2.167GluIle: 2.167 ± 0.036
1.78GluLys: 1.78 ± 0.041
7.176GluLeu: 7.176 ± 0.076
1.004GluMet: 1.004 ± 0.025
1.069GluAsn: 1.069 ± 0.025
3.815GluPro: 3.815 ± 0.044
2.47GluGln: 2.47 ± 0.04
6.106GluArg: 6.106 ± 0.071
3.107GluSer: 3.107 ± 0.046
3.201GluThr: 3.201 ± 0.041
4.528GluVal: 4.528 ± 0.05
0.878GluTrp: 0.878 ± 0.023
1.129GluTyr: 1.129 ± 0.023
0.0GluXaa: 0.0 ± 0.0
Phe
3.594PheAla: 3.594 ± 0.049
0.275PheCys: 0.275 ± 0.013
1.936PheAsp: 1.936 ± 0.039
1.494PheGlu: 1.494 ± 0.03
0.909PhePhe: 0.909 ± 0.025
2.993PheGly: 2.993 ± 0.044
0.598PheHis: 0.598 ± 0.018
0.699PheIle: 0.699 ± 0.019
0.506PheLys: 0.506 ± 0.017
2.502PheLeu: 2.502 ± 0.042
0.416PheMet: 0.416 ± 0.015
0.517PheAsn: 0.517 ± 0.018
1.365PhePro: 1.365 ± 0.028
0.632PheGln: 0.632 ± 0.019
1.867PheArg: 1.867 ± 0.031
1.484PheSer: 1.484 ± 0.031
1.904PheThr: 1.904 ± 0.028
2.187PheVal: 2.187 ± 0.037
0.416PheTrp: 0.416 ± 0.016
0.535PheTyr: 0.535 ± 0.019
0.0PheXaa: 0.0 ± 0.0
Gly
11.891GlyAla: 11.891 ± 0.105
0.905GlyCys: 0.905 ± 0.025
5.4GlyAsp: 5.4 ± 0.065
6.382GlyGlu: 6.382 ± 0.066
2.852GlyPhe: 2.852 ± 0.045
10.54GlyGly: 10.54 ± 0.116
2.322GlyHis: 2.322 ± 0.038
3.185GlyIle: 3.185 ± 0.053
2.708GlyLys: 2.708 ± 0.048
9.229GlyLeu: 9.229 ± 0.087
2.134GlyMet: 2.134 ± 0.036
1.706GlyAsn: 1.706 ± 0.035
5.796GlyPro: 5.796 ± 0.067
2.905GlyGln: 2.905 ± 0.044
8.444GlyArg: 8.444 ± 0.083
6.225GlySer: 6.225 ± 0.067
6.576GlyThr: 6.576 ± 0.079
7.576GlyVal: 7.576 ± 0.067
1.637GlyTrp: 1.637 ± 0.034
2.201GlyTyr: 2.201 ± 0.038
0.0GlyXaa: 0.0 ± 0.0
His
2.612HisAla: 2.612 ± 0.041
0.22HisCys: 0.22 ± 0.011
1.311HisAsp: 1.311 ± 0.027
1.299HisGlu: 1.299 ± 0.029
0.657HisPhe: 0.657 ± 0.02
2.488HisGly: 2.488 ± 0.041
0.619HisHis: 0.619 ± 0.023
0.647HisIle: 0.647 ± 0.02
0.354HisLys: 0.354 ± 0.015
2.233HisLeu: 2.233 ± 0.038
0.354HisMet: 0.354 ± 0.012
0.361HisAsn: 0.361 ± 0.015
1.676HisPro: 1.676 ± 0.032
0.595HisGln: 0.595 ± 0.016
2.117HisArg: 2.117 ± 0.043
1.155HisSer: 1.155 ± 0.024
1.196HisThr: 1.196 ± 0.022
1.72HisVal: 1.72 ± 0.029
0.345HisTrp: 0.345 ± 0.014
0.448HisTyr: 0.448 ± 0.015
0.0HisXaa: 0.0 ± 0.0
Ile
4.228IleAla: 4.228 ± 0.054
0.269IleCys: 0.269 ± 0.012
1.935IleAsp: 1.935 ± 0.033
1.829IleGlu: 1.829 ± 0.036
0.69IlePhe: 0.69 ± 0.018
3.168IleGly: 3.168 ± 0.053
0.513IleHis: 0.513 ± 0.014
0.721IleIle: 0.721 ± 0.022
0.665IleLys: 0.665 ± 0.024
2.063IleLeu: 2.063 ± 0.04
0.416IleMet: 0.416 ± 0.014
0.596IleAsn: 0.596 ± 0.018
1.533IlePro: 1.533 ± 0.035
0.625IleGln: 0.625 ± 0.019
1.943IleArg: 1.943 ± 0.034
1.575IleSer: 1.575 ± 0.03
1.805IleThr: 1.805 ± 0.033
2.528IleVal: 2.528 ± 0.038
0.312IleTrp: 0.312 ± 0.012
0.484IleTyr: 0.484 ± 0.017
0.0IleXaa: 0.0 ± 0.0
Lys
2.901LysAla: 2.901 ± 0.063
0.138LysCys: 0.138 ± 0.008
1.341LysAsp: 1.341 ± 0.034
1.315LysGlu: 1.315 ± 0.033
0.461LysPhe: 0.461 ± 0.018
2.004LysGly: 2.004 ± 0.042
0.43LysHis: 0.43 ± 0.016
0.821LysIle: 0.821 ± 0.025
0.999LysLys: 0.999 ± 0.038
2.114LysLeu: 2.114 ± 0.039
0.401LysMet: 0.401 ± 0.013
0.499LysAsn: 0.499 ± 0.021
1.399LysPro: 1.399 ± 0.035
0.724LysGln: 0.724 ± 0.024
1.6LysArg: 1.6 ± 0.033
1.336LysSer: 1.336 ± 0.035
1.205LysThr: 1.205 ± 0.03
1.775LysVal: 1.775 ± 0.036
0.259LysTrp: 0.259 ± 0.012
0.463LysTyr: 0.463 ± 0.016
0.0LysXaa: 0.0 ± 0.0
Leu
14.215LeuAla: 14.215 ± 0.111
0.884LeuCys: 0.884 ± 0.023
6.323LeuAsp: 6.323 ± 0.067
5.249LeuGlu: 5.249 ± 0.062
2.557LeuPhe: 2.557 ± 0.037
9.083LeuGly: 9.083 ± 0.085
2.238LeuHis: 2.238 ± 0.039
2.913LeuIle: 2.913 ± 0.045
2.026LeuLys: 2.026 ± 0.041
11.244LeuLeu: 11.244 ± 0.127
1.691LeuMet: 1.691 ± 0.033
1.599LeuAsn: 1.599 ± 0.026
6.587LeuPro: 6.587 ± 0.072
2.19LeuGln: 2.19 ± 0.037
8.89LeuArg: 8.89 ± 0.078
5.572LeuSer: 5.572 ± 0.061
6.334LeuThr: 6.334 ± 0.064
8.354LeuVal: 8.354 ± 0.069
1.248LeuTrp: 1.248 ± 0.03
1.752LeuTyr: 1.752 ± 0.031
0.0LeuXaa: 0.0 ± 0.0
Met
2.248MetAla: 2.248 ± 0.035
0.154MetCys: 0.154 ± 0.008
0.887MetAsp: 0.887 ± 0.023
0.84MetGlu: 0.84 ± 0.023
0.441MetPhe: 0.441 ± 0.017
1.338MetGly: 1.338 ± 0.026
0.383MetHis: 0.383 ± 0.015
0.604MetIle: 0.604 ± 0.019
0.437MetLys: 0.437 ± 0.015
1.804MetLeu: 1.804 ± 0.034
0.308MetMet: 0.308 ± 0.014
0.426MetAsn: 0.426 ± 0.014
1.225MetPro: 1.225 ± 0.024
0.479MetGln: 0.479 ± 0.014
1.595MetArg: 1.595 ± 0.029
1.377MetSer: 1.377 ± 0.026
1.502MetThr: 1.502 ± 0.029
1.281MetVal: 1.281 ± 0.026
0.232MetTrp: 0.232 ± 0.011
0.333MetTyr: 0.333 ± 0.013
0.0MetXaa: 0.0 ± 0.0
Asn
2.047AsnAla: 2.047 ± 0.039
0.159AsnCys: 0.159 ± 0.01
0.933AsnAsp: 0.933 ± 0.025
0.838AsnGlu: 0.838 ± 0.023
0.445AsnPhe: 0.445 ± 0.016
1.763AsnGly: 1.763 ± 0.033
0.361AsnHis: 0.361 ± 0.014
0.576AsnIle: 0.576 ± 0.018
0.389AsnLys: 0.389 ± 0.016
1.552AsnLeu: 1.552 ± 0.034
0.283AsnMet: 0.283 ± 0.012
0.361AsnAsn: 0.361 ± 0.016
1.233AsnPro: 1.233 ± 0.03
0.427AsnGln: 0.427 ± 0.016
1.213AsnArg: 1.213 ± 0.026
0.975AsnSer: 0.975 ± 0.024
0.939AsnThr: 0.939 ± 0.025
1.335AsnVal: 1.335 ± 0.034
0.257AsnTrp: 0.257 ± 0.012
0.385AsnTyr: 0.385 ± 0.014
0.0AsnXaa: 0.0 ± 0.0
Pro
8.584ProAla: 8.584 ± 0.093
0.371ProCys: 0.371 ± 0.014
4.373ProAsp: 4.373 ± 0.055
4.947ProGlu: 4.947 ± 0.053
1.508ProPhe: 1.508 ± 0.031
7.639ProGly: 7.639 ± 0.085
1.433ProHis: 1.433 ± 0.034
1.03ProIle: 1.03 ± 0.024
1.128ProLys: 1.128 ± 0.028
5.477ProLeu: 5.477 ± 0.069
1.011ProMet: 1.011 ± 0.026
0.782ProAsn: 0.782 ± 0.02
4.003ProPro: 4.003 ± 0.068
1.896ProGln: 1.896 ± 0.039
4.225ProArg: 4.225 ± 0.06
3.627ProSer: 3.627 ± 0.054
2.534ProThr: 2.534 ± 0.038
5.528ProVal: 5.528 ± 0.053
0.872ProTrp: 0.872 ± 0.023
1.375ProTyr: 1.375 ± 0.03
0.0ProXaa: 0.0 ± 0.0
Gln
3.525GlnAla: 3.525 ± 0.049
0.193GlnCys: 0.193 ± 0.01
1.379GlnAsp: 1.379 ± 0.031
1.591GlnGlu: 1.591 ± 0.03
0.715GlnPhe: 0.715 ± 0.02
2.424GlnGly: 2.424 ± 0.043
0.722GlnHis: 0.722 ± 0.02
0.989GlnIle: 0.989 ± 0.025
0.636GlnLys: 0.636 ± 0.02
3.167GlnLeu: 3.167 ± 0.043
0.519GlnMet: 0.519 ± 0.017
0.447GlnAsn: 0.447 ± 0.016
1.834GlnPro: 1.834 ± 0.045
1.394GlnGln: 1.394 ± 0.044
2.588GlnArg: 2.588 ± 0.04
1.33GlnSer: 1.33 ± 0.028
1.239GlnThr: 1.239 ± 0.028
2.203GlnVal: 2.203 ± 0.04
0.408GlnTrp: 0.408 ± 0.014
0.55GlnTyr: 0.55 ± 0.017
0.0GlnXaa: 0.0 ± 0.0
Arg
9.682ArgAla: 9.682 ± 0.095
0.652ArgCys: 0.652 ± 0.021
4.4ArgAsp: 4.4 ± 0.055
5.54ArgGlu: 5.54 ± 0.065
2.297ArgPhe: 2.297 ± 0.036
6.356ArgGly: 6.356 ± 0.067
2.099ArgHis: 2.099 ± 0.034
2.923ArgIle: 2.923 ± 0.039
1.89ArgLys: 1.89 ± 0.038
8.822ArgLeu: 8.822 ± 0.089
1.834ArgMet: 1.834 ± 0.034
1.407ArgAsn: 1.407 ± 0.025
5.264ArgPro: 5.264 ± 0.072
2.432ArgGln: 2.432 ± 0.037
8.028ArgArg: 8.028 ± 0.102
4.509ArgSer: 4.509 ± 0.047
5.545ArgThr: 5.545 ± 0.054
5.856ArgVal: 5.856 ± 0.066
1.363ArgTrp: 1.363 ± 0.028
1.788ArgTyr: 1.788 ± 0.03
0.0ArgXaa: 0.0 ± 0.0
Ser
7.415SerAla: 7.415 ± 0.063
0.439SerCys: 0.439 ± 0.018
2.884SerAsp: 2.884 ± 0.043
2.991SerGlu: 2.991 ± 0.046
1.581SerPhe: 1.581 ± 0.031
6.998SerGly: 6.998 ± 0.066
1.1SerHis: 1.1 ± 0.025
1.258SerIle: 1.258 ± 0.027
1.137SerLys: 1.137 ± 0.033
4.982SerLeu: 4.982 ± 0.053
1.137SerMet: 1.137 ± 0.022
0.838SerAsn: 0.838 ± 0.022
3.422SerPro: 3.422 ± 0.051
1.369SerGln: 1.369 ± 0.028
4.181SerArg: 4.181 ± 0.051
3.216SerSer: 3.216 ± 0.053
2.973SerThr: 2.973 ± 0.049
4.567SerVal: 4.567 ± 0.05
0.87SerTrp: 0.87 ± 0.022
1.188SerTyr: 1.188 ± 0.026
0.0SerXaa: 0.0 ± 0.0
Thr
8.21ThrAla: 8.21 ± 0.086
0.419ThrCys: 0.419 ± 0.015
3.324ThrAsp: 3.324 ± 0.044
3.139ThrGlu: 3.139 ± 0.043
1.499ThrPhe: 1.499 ± 0.03
6.621ThrGly: 6.621 ± 0.076
1.114ThrHis: 1.114 ± 0.024
1.376ThrIle: 1.376 ± 0.033
1.038ThrLys: 1.038 ± 0.027
5.274ThrLeu: 5.274 ± 0.061
0.908ThrMet: 0.908 ± 0.025
0.846ThrAsn: 0.846 ± 0.023
3.748ThrPro: 3.748 ± 0.052
1.223ThrGln: 1.223 ± 0.031
3.698ThrArg: 3.698 ± 0.04
3.161ThrSer: 3.161 ± 0.047
3.108ThrThr: 3.108 ± 0.058
5.745ThrVal: 5.745 ± 0.076
0.768ThrTrp: 0.768 ± 0.02
1.177ThrTyr: 1.177 ± 0.028
0.0ThrXaa: 0.0 ± 0.0
Val
10.158ValAla: 10.158 ± 0.083
0.826ValCys: 0.826 ± 0.024
4.62ValAsp: 4.62 ± 0.052
4.965ValGlu: 4.965 ± 0.064
2.343ValPhe: 2.343 ± 0.043
6.351ValGly: 6.351 ± 0.063
2.047ValHis: 2.047 ± 0.037
2.479ValIle: 2.479 ± 0.042
1.695ValLys: 1.695 ± 0.033
9.715ValLeu: 9.715 ± 0.099
1.423ValMet: 1.423 ± 0.028
1.573ValAsn: 1.573 ± 0.031
5.497ValPro: 5.497 ± 0.064
2.112ValGln: 2.112 ± 0.034
7.464ValArg: 7.464 ± 0.072
4.426ValSer: 4.426 ± 0.05
5.264ValThr: 5.264 ± 0.074
7.646ValVal: 7.646 ± 0.073
1.097ValTrp: 1.097 ± 0.028
1.469ValTyr: 1.469 ± 0.029
0.0ValXaa: 0.0 ± 0.0
Trp
1.497TrpAla: 1.497 ± 0.03
0.158TrpCys: 0.158 ± 0.009
0.768TrpAsp: 0.768 ± 0.021
0.79TrpGlu: 0.79 ± 0.023
0.529TrpPhe: 0.529 ± 0.018
1.019TrpGly: 1.019 ± 0.026
0.355TrpHis: 0.355 ± 0.012
0.484TrpIle: 0.484 ± 0.015
0.369TrpLys: 0.369 ± 0.017
1.724TrpLeu: 1.724 ± 0.034
0.292TrpMet: 0.292 ± 0.011
0.37TrpAsn: 0.37 ± 0.015
0.766TrpPro: 0.766 ± 0.021
0.601TrpGln: 0.601 ± 0.02
1.326TrpArg: 1.326 ± 0.028
0.894TrpSer: 0.894 ± 0.023
0.9TrpThr: 0.9 ± 0.023
0.894TrpVal: 0.894 ± 0.027
0.313TrpTrp: 0.313 ± 0.015
0.317TrpTyr: 0.317 ± 0.014
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.615TyrAla: 2.615 ± 0.039
0.16TyrCys: 0.16 ± 0.009
1.367TyrAsp: 1.367 ± 0.029
1.338TyrGlu: 1.338 ± 0.029
0.601TyrPhe: 0.601 ± 0.017
2.311TyrGly: 2.311 ± 0.039
0.38TyrHis: 0.38 ± 0.016
0.453TyrIle: 0.453 ± 0.016
0.37TyrLys: 0.37 ± 0.015
1.945TyrLeu: 1.945 ± 0.037
0.264TyrMet: 0.264 ± 0.012
0.346TyrAsn: 0.346 ± 0.019
1.02TyrPro: 1.02 ± 0.025
0.509TyrGln: 0.509 ± 0.015
1.781TyrArg: 1.781 ± 0.033
0.966TyrSer: 0.966 ± 0.021
1.035TyrThr: 1.035 ± 0.026
1.583TyrVal: 1.583 ± 0.028
0.316TyrTrp: 0.316 ± 0.013
0.409TyrTyr: 0.409 ± 0.018
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 5562 proteins (1902022 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