Amino acid dipepetide frequency for Streptomyces sp. RKND-216

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
22.212AlaAla: 22.212 ± 0.204
1.188AlaCys: 1.188 ± 0.033
8.896AlaAsp: 8.896 ± 0.098
9.283AlaGlu: 9.283 ± 0.102
3.625AlaPhe: 3.625 ± 0.055
13.847AlaGly: 13.847 ± 0.123
3.112AlaHis: 3.112 ± 0.048
2.649AlaIle: 2.649 ± 0.047
2.405AlaLys: 2.405 ± 0.065
14.824AlaLeu: 14.824 ± 0.133
2.494AlaMet: 2.494 ± 0.042
1.633AlaAsn: 1.633 ± 0.036
7.615AlaPro: 7.615 ± 0.101
3.561AlaGln: 3.561 ± 0.05
11.147AlaArg: 11.147 ± 0.105
5.65AlaSer: 5.65 ± 0.074
6.749AlaThr: 6.749 ± 0.071
12.543AlaVal: 12.543 ± 0.117
1.86AlaTrp: 1.86 ± 0.031
2.738AlaTyr: 2.738 ± 0.042
0.0AlaXaa: 0.0 ± 0.0
Cys
1.147CysAla: 1.147 ± 0.027
0.103CysCys: 0.103 ± 0.009
0.522CysAsp: 0.522 ± 0.02
0.408CysGlu: 0.408 ± 0.016
0.23CysPhe: 0.23 ± 0.012
1.063CysGly: 1.063 ± 0.026
0.195CysHis: 0.195 ± 0.012
0.181CysIle: 0.181 ± 0.011
0.111CysLys: 0.111 ± 0.009
0.73CysLeu: 0.73 ± 0.024
0.14CysMet: 0.14 ± 0.01
0.13CysAsn: 0.13 ± 0.009
0.491CysPro: 0.491 ± 0.018
0.139CysGln: 0.139 ± 0.009
0.685CysArg: 0.685 ± 0.024
0.448CysSer: 0.448 ± 0.019
0.57CysThr: 0.57 ± 0.017
0.699CysVal: 0.699 ± 0.024
0.137CysTrp: 0.137 ± 0.009
0.144CysTyr: 0.144 ± 0.01
0.0CysXaa: 0.0 ± 0.0
Asp
8.77AspAla: 8.77 ± 0.102
0.438AspCys: 0.438 ± 0.017
3.962AspAsp: 3.962 ± 0.054
4.108AspGlu: 4.108 ± 0.054
1.661AspPhe: 1.661 ± 0.036
7.276AspGly: 7.276 ± 0.09
1.476AspHis: 1.476 ± 0.032
1.56AspIle: 1.56 ± 0.04
0.93AspLys: 0.93 ± 0.033
6.224AspLeu: 6.224 ± 0.07
0.829AspMet: 0.829 ± 0.025
0.772AspAsn: 0.772 ± 0.024
4.645AspPro: 4.645 ± 0.067
1.357AspGln: 1.357 ± 0.034
5.345AspArg: 5.345 ± 0.067
2.336AspSer: 2.336 ± 0.038
3.218AspThr: 3.218 ± 0.051
5.116AspVal: 5.116 ± 0.058
0.998AspTrp: 0.998 ± 0.029
1.119AspTyr: 1.119 ± 0.031
0.0AspXaa: 0.0 ± 0.0
Glu
7.932GluAla: 7.932 ± 0.082
0.397GluCys: 0.397 ± 0.015
3.333GluAsp: 3.333 ± 0.051
4.076GluGlu: 4.076 ± 0.063
1.371GluPhe: 1.371 ± 0.031
4.966GluGly: 4.966 ± 0.063
1.596GluHis: 1.596 ± 0.03
2.157GluIle: 2.157 ± 0.045
1.505GluLys: 1.505 ± 0.039
6.608GluLeu: 6.608 ± 0.074
0.945GluMet: 0.945 ± 0.026
1.045GluAsn: 1.045 ± 0.026
3.713GluPro: 3.713 ± 0.054
2.296GluGln: 2.296 ± 0.038
5.851GluArg: 5.851 ± 0.072
2.586GluSer: 2.586 ± 0.048
3.137GluThr: 3.137 ± 0.051
4.835GluVal: 4.835 ± 0.071
0.726GluTrp: 0.726 ± 0.024
1.02GluTyr: 1.02 ± 0.03
0.0GluXaa: 0.0 ± 0.0
Phe
3.754PheAla: 3.754 ± 0.059
0.27PheCys: 0.27 ± 0.013
1.959PheAsp: 1.959 ± 0.037
1.392PheGlu: 1.392 ± 0.033
0.884PhePhe: 0.884 ± 0.023
2.963PheGly: 2.963 ± 0.047
0.641PheHis: 0.641 ± 0.023
0.567PheIle: 0.567 ± 0.021
0.404PheLys: 0.404 ± 0.017
2.604PheLeu: 2.604 ± 0.046
0.365PheMet: 0.365 ± 0.015
0.462PheAsn: 0.462 ± 0.018
1.348PhePro: 1.348 ± 0.03
0.645PheGln: 0.645 ± 0.018
1.931PheArg: 1.931 ± 0.033
1.414PheSer: 1.414 ± 0.029
1.935PheThr: 1.935 ± 0.034
2.219PheVal: 2.219 ± 0.038
0.395PheTrp: 0.395 ± 0.015
0.51PheTyr: 0.51 ± 0.018
0.0PheXaa: 0.0 ± 0.0
Gly
11.959GlyAla: 11.959 ± 0.116
0.901GlyCys: 0.901 ± 0.027
5.815GlyAsp: 5.815 ± 0.075
5.898GlyGlu: 5.898 ± 0.071
2.794GlyPhe: 2.794 ± 0.042
10.116GlyGly: 10.116 ± 0.116
2.485GlyHis: 2.485 ± 0.037
3.06GlyIle: 3.06 ± 0.051
2.029GlyLys: 2.029 ± 0.048
9.558GlyLeu: 9.558 ± 0.095
2.132GlyMet: 2.132 ± 0.043
1.637GlyAsn: 1.637 ± 0.035
5.775GlyPro: 5.775 ± 0.075
2.399GlyGln: 2.399 ± 0.05
8.488GlyArg: 8.488 ± 0.085
5.258GlySer: 5.258 ± 0.072
6.536GlyThr: 6.536 ± 0.073
7.923GlyVal: 7.923 ± 0.081
1.727GlyTrp: 1.727 ± 0.038
2.132GlyTyr: 2.132 ± 0.042
0.0GlyXaa: 0.0 ± 0.0
His
2.939HisAla: 2.939 ± 0.05
0.235HisCys: 0.235 ± 0.012
1.49HisAsp: 1.49 ± 0.031
1.276HisGlu: 1.276 ± 0.029
0.622HisPhe: 0.622 ± 0.02
2.749HisGly: 2.749 ± 0.042
0.773HisHis: 0.773 ± 0.026
0.583HisIle: 0.583 ± 0.023
0.317HisLys: 0.317 ± 0.016
2.559HisLeu: 2.559 ± 0.052
0.318HisMet: 0.318 ± 0.013
0.349HisAsn: 0.349 ± 0.017
1.864HisPro: 1.864 ± 0.047
0.633HisGln: 0.633 ± 0.024
2.402HisArg: 2.402 ± 0.042
0.986HisSer: 0.986 ± 0.02
1.363HisThr: 1.363 ± 0.032
1.901HisVal: 1.901 ± 0.035
0.36HisTrp: 0.36 ± 0.015
0.457HisTyr: 0.457 ± 0.017
0.0HisXaa: 0.0 ± 0.0
Ile
4.034IleAla: 4.034 ± 0.059
0.238IleCys: 0.238 ± 0.012
1.988IleAsp: 1.988 ± 0.038
1.733IleGlu: 1.733 ± 0.037
0.598IlePhe: 0.598 ± 0.02
3.115IleGly: 3.115 ± 0.053
0.516IleHis: 0.516 ± 0.018
0.698IleIle: 0.698 ± 0.026
0.576IleLys: 0.576 ± 0.022
2.047IleLeu: 2.047 ± 0.041
0.375IleMet: 0.375 ± 0.017
0.529IleAsn: 0.529 ± 0.019
1.51IlePro: 1.51 ± 0.031
0.577IleGln: 0.577 ± 0.021
1.98IleArg: 1.98 ± 0.037
1.334IleSer: 1.334 ± 0.034
1.757IleThr: 1.757 ± 0.039
2.308IleVal: 2.308 ± 0.051
0.288IleTrp: 0.288 ± 0.014
0.431IleTyr: 0.431 ± 0.019
0.0IleXaa: 0.0 ± 0.0
Lys
2.388LysAla: 2.388 ± 0.046
0.11LysCys: 0.11 ± 0.008
1.101LysAsp: 1.101 ± 0.032
1.049LysGlu: 1.049 ± 0.034
0.365LysPhe: 0.365 ± 0.015
1.556LysGly: 1.556 ± 0.04
0.394LysHis: 0.394 ± 0.018
0.738LysIle: 0.738 ± 0.026
0.777LysLys: 0.777 ± 0.038
1.754LysLeu: 1.754 ± 0.046
0.334LysMet: 0.334 ± 0.017
0.43LysAsn: 0.43 ± 0.019
1.149LysPro: 1.149 ± 0.033
0.628LysGln: 0.628 ± 0.023
1.379LysArg: 1.379 ± 0.032
0.971LysSer: 0.971 ± 0.028
1.139LysThr: 1.139 ± 0.039
1.596LysVal: 1.596 ± 0.04
0.213LysTrp: 0.213 ± 0.012
0.363LysTyr: 0.363 ± 0.016
0.0LysXaa: 0.0 ± 0.0
Leu
15.183LeuAla: 15.183 ± 0.141
0.876LeuCys: 0.876 ± 0.018
6.769LeuAsp: 6.769 ± 0.078
5.135LeuGlu: 5.135 ± 0.065
2.579LeuPhe: 2.579 ± 0.045
9.163LeuGly: 9.163 ± 0.098
2.509LeuHis: 2.509 ± 0.041
2.731LeuIle: 2.731 ± 0.051
1.635LeuLys: 1.635 ± 0.036
11.585LeuLeu: 11.585 ± 0.115
1.541LeuMet: 1.541 ± 0.031
1.507LeuAsn: 1.507 ± 0.029
6.581LeuPro: 6.581 ± 0.078
2.198LeuGln: 2.198 ± 0.035
9.334LeuArg: 9.334 ± 0.102
5.125LeuSer: 5.125 ± 0.056
6.682LeuThr: 6.682 ± 0.078
8.711LeuVal: 8.711 ± 0.088
1.256LeuTrp: 1.256 ± 0.031
1.769LeuTyr: 1.769 ± 0.036
0.0LeuXaa: 0.0 ± 0.0
Met
2.217MetAla: 2.217 ± 0.043
0.132MetCys: 0.132 ± 0.009
0.878MetAsp: 0.878 ± 0.024
0.799MetGlu: 0.799 ± 0.024
0.431MetPhe: 0.431 ± 0.022
1.281MetGly: 1.281 ± 0.036
0.345MetHis: 0.345 ± 0.014
0.597MetIle: 0.597 ± 0.019
0.403MetLys: 0.403 ± 0.017
1.786MetLeu: 1.786 ± 0.035
0.293MetMet: 0.293 ± 0.014
0.402MetAsn: 0.402 ± 0.016
1.182MetPro: 1.182 ± 0.027
0.442MetGln: 0.442 ± 0.016
1.465MetArg: 1.465 ± 0.032
1.248MetSer: 1.248 ± 0.033
1.423MetThr: 1.423 ± 0.03
1.227MetVal: 1.227 ± 0.029
0.21MetTrp: 0.21 ± 0.013
0.299MetTyr: 0.299 ± 0.015
0.0MetXaa: 0.0 ± 0.0
Asn
2.039AsnAla: 2.039 ± 0.032
0.163AsnCys: 0.163 ± 0.009
0.897AsnAsp: 0.897 ± 0.023
0.776AsnGlu: 0.776 ± 0.027
0.401AsnPhe: 0.401 ± 0.016
1.722AsnGly: 1.722 ± 0.038
0.346AsnHis: 0.346 ± 0.018
0.534AsnIle: 0.534 ± 0.02
0.32AsnLys: 0.32 ± 0.015
1.495AsnLeu: 1.495 ± 0.035
0.242AsnMet: 0.242 ± 0.014
0.341AsnAsn: 0.341 ± 0.017
1.219AsnPro: 1.219 ± 0.03
0.411AsnGln: 0.411 ± 0.017
1.207AsnArg: 1.207 ± 0.026
0.75AsnSer: 0.75 ± 0.023
0.954AsnThr: 0.954 ± 0.029
1.276AsnVal: 1.276 ± 0.028
0.243AsnTrp: 0.243 ± 0.014
0.366AsnTyr: 0.366 ± 0.015
0.0AsnXaa: 0.0 ± 0.0
Pro
9.009ProAla: 9.009 ± 0.112
0.358ProCys: 0.358 ± 0.016
4.922ProAsp: 4.922 ± 0.065
4.787ProGlu: 4.787 ± 0.063
1.541ProPhe: 1.541 ± 0.033
7.307ProGly: 7.307 ± 0.094
1.57ProHis: 1.57 ± 0.044
1.015ProIle: 1.015 ± 0.026
1.001ProLys: 1.001 ± 0.039
5.32ProLeu: 5.32 ± 0.065
0.95ProMet: 0.95 ± 0.027
0.809ProAsn: 0.809 ± 0.025
4.015ProPro: 4.015 ± 0.08
1.934ProGln: 1.934 ± 0.049
4.187ProArg: 4.187 ± 0.055
3.248ProSer: 3.248 ± 0.046
3.059ProThr: 3.059 ± 0.042
5.59ProVal: 5.59 ± 0.068
0.878ProTrp: 0.878 ± 0.027
1.316ProTyr: 1.316 ± 0.033
0.0ProXaa: 0.0 ± 0.0
Gln
3.562GlnAla: 3.562 ± 0.055
0.176GlnCys: 0.176 ± 0.011
1.411GlnAsp: 1.411 ± 0.035
1.466GlnGlu: 1.466 ± 0.031
0.583GlnPhe: 0.583 ± 0.02
2.183GlnGly: 2.183 ± 0.047
0.701GlnHis: 0.701 ± 0.02
0.942GlnIle: 0.942 ± 0.025
0.534GlnLys: 0.534 ± 0.024
2.728GlnLeu: 2.728 ± 0.046
0.482GlnMet: 0.482 ± 0.016
0.459GlnAsn: 0.459 ± 0.019
1.741GlnPro: 1.741 ± 0.042
1.276GlnGln: 1.276 ± 0.038
2.506GlnArg: 2.506 ± 0.041
1.15GlnSer: 1.15 ± 0.028
1.277GlnThr: 1.277 ± 0.032
2.31GlnVal: 2.31 ± 0.041
0.378GlnTrp: 0.378 ± 0.014
0.514GlnTyr: 0.514 ± 0.02
0.0GlnXaa: 0.0 ± 0.0
Arg
10.446ArgAla: 10.446 ± 0.111
0.692ArgCys: 0.692 ± 0.021
4.795ArgAsp: 4.795 ± 0.065
5.35ArgGlu: 5.35 ± 0.067
2.425ArgPhe: 2.425 ± 0.04
6.402ArgGly: 6.402 ± 0.064
2.351ArgHis: 2.351 ± 0.045
2.941ArgIle: 2.941 ± 0.05
1.616ArgLys: 1.616 ± 0.042
9.195ArgLeu: 9.195 ± 0.102
1.862ArgMet: 1.862 ± 0.034
1.397ArgAsn: 1.397 ± 0.03
5.405ArgPro: 5.405 ± 0.068
2.314ArgGln: 2.314 ± 0.043
8.864ArgArg: 8.864 ± 0.098
4.132ArgSer: 4.132 ± 0.055
5.663ArgThr: 5.663 ± 0.078
6.277ArgVal: 6.277 ± 0.077
1.379ArgTrp: 1.379 ± 0.033
1.792ArgTyr: 1.792 ± 0.032
0.0ArgXaa: 0.0 ± 0.0
Ser
6.471SerAla: 6.471 ± 0.073
0.389SerCys: 0.389 ± 0.016
2.634SerAsp: 2.634 ± 0.044
2.375SerGlu: 2.375 ± 0.041
1.451SerPhe: 1.451 ± 0.034
6.047SerGly: 6.047 ± 0.065
1.023SerHis: 1.023 ± 0.025
1.12SerIle: 1.12 ± 0.032
0.797SerLys: 0.797 ± 0.024
4.629SerLeu: 4.629 ± 0.062
0.974SerMet: 0.974 ± 0.026
0.744SerAsn: 0.744 ± 0.024
3.168SerPro: 3.168 ± 0.048
1.152SerGln: 1.152 ± 0.031
3.792SerArg: 3.792 ± 0.048
2.618SerSer: 2.618 ± 0.047
2.802SerThr: 2.802 ± 0.045
4.1SerVal: 4.1 ± 0.063
0.817SerTrp: 0.817 ± 0.022
1.094SerTyr: 1.094 ± 0.025
0.0SerXaa: 0.0 ± 0.0
Thr
8.67ThrAla: 8.67 ± 0.09
0.433ThrCys: 0.433 ± 0.017
3.523ThrAsp: 3.523 ± 0.046
3.236ThrGlu: 3.236 ± 0.052
1.588ThrPhe: 1.588 ± 0.029
6.884ThrGly: 6.884 ± 0.072
1.217ThrHis: 1.217 ± 0.035
1.304ThrIle: 1.304 ± 0.033
0.94ThrLys: 0.94 ± 0.028
5.808ThrLeu: 5.808 ± 0.074
0.912ThrMet: 0.912 ± 0.027
0.836ThrAsn: 0.836 ± 0.024
4.09ThrPro: 4.09 ± 0.065
1.203ThrGln: 1.203 ± 0.032
4.025ThrArg: 4.025 ± 0.059
2.932ThrSer: 2.932 ± 0.044
3.595ThrThr: 3.595 ± 0.062
6.049ThrVal: 6.049 ± 0.068
0.81ThrTrp: 0.81 ± 0.026
1.242ThrTyr: 1.242 ± 0.027
0.0ThrXaa: 0.0 ± 0.0
Val
10.998ValAla: 10.998 ± 0.095
0.839ValCys: 0.839 ± 0.026
5.003ValAsp: 5.003 ± 0.065
4.978ValGlu: 4.978 ± 0.066
2.391ValPhe: 2.391 ± 0.045
6.686ValGly: 6.686 ± 0.076
2.185ValHis: 2.185 ± 0.042
2.415ValIle: 2.415 ± 0.043
1.527ValLys: 1.527 ± 0.035
9.778ValLeu: 9.778 ± 0.1
1.377ValMet: 1.377 ± 0.032
1.514ValAsn: 1.514 ± 0.035
5.54ValPro: 5.54 ± 0.062
2.121ValGln: 2.121 ± 0.044
7.583ValArg: 7.583 ± 0.083
4.282ValSer: 4.282 ± 0.054
5.401ValThr: 5.401 ± 0.058
8.167ValVal: 8.167 ± 0.08
1.087ValTrp: 1.087 ± 0.026
1.517ValTyr: 1.517 ± 0.03
0.0ValXaa: 0.0 ± 0.0
Trp
1.606TrpAla: 1.606 ± 0.036
0.158TrpCys: 0.158 ± 0.009
0.809TrpAsp: 0.809 ± 0.024
0.798TrpGlu: 0.798 ± 0.024
0.511TrpPhe: 0.511 ± 0.018
1.038TrpGly: 1.038 ± 0.026
0.364TrpHis: 0.364 ± 0.015
0.455TrpIle: 0.455 ± 0.016
0.312TrpLys: 0.312 ± 0.017
1.636TrpLeu: 1.636 ± 0.036
0.277TrpMet: 0.277 ± 0.012
0.37TrpAsn: 0.37 ± 0.016
0.737TrpPro: 0.737 ± 0.023
0.556TrpGln: 0.556 ± 0.021
1.341TrpArg: 1.341 ± 0.03
0.886TrpSer: 0.886 ± 0.025
0.96TrpThr: 0.96 ± 0.028
0.935TrpVal: 0.935 ± 0.025
0.327TrpTrp: 0.327 ± 0.015
0.332TrpTyr: 0.332 ± 0.015
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.697TyrAla: 2.697 ± 0.04
0.174TyrCys: 0.174 ± 0.01
1.433TyrAsp: 1.433 ± 0.034
1.172TyrGlu: 1.172 ± 0.032
0.61TyrPhe: 0.61 ± 0.021
2.256TyrGly: 2.256 ± 0.043
0.377TyrHis: 0.377 ± 0.015
0.385TyrIle: 0.385 ± 0.018
0.294TyrLys: 0.294 ± 0.015
2.001TyrLeu: 2.001 ± 0.036
0.22TyrMet: 0.22 ± 0.011
0.335TyrAsn: 0.335 ± 0.015
1.027TyrPro: 1.027 ± 0.027
0.537TyrGln: 0.537 ± 0.018
1.785TyrArg: 1.785 ± 0.041
0.841TyrSer: 0.841 ± 0.027
1.077TyrThr: 1.077 ± 0.031
1.61TyrVal: 1.61 ± 0.033
0.32TyrTrp: 0.32 ± 0.016
0.379TyrTyr: 0.379 ± 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 4607 proteins (1585695 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