Amino acid dipepetide frequency for Streptomyces sp. ADI96-02

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
22.774AlaAla: 22.774 ± 0.2
1.104AlaCys: 1.104 ± 0.026
8.653AlaAsp: 8.653 ± 0.06
9.209AlaGlu: 9.209 ± 0.111
3.559AlaPhe: 3.559 ± 0.052
13.737AlaGly: 13.737 ± 0.102
2.832AlaHis: 2.832 ± 0.044
3.318AlaIle: 3.318 ± 0.043
2.821AlaLys: 2.821 ± 0.058
14.674AlaLeu: 14.674 ± 0.128
2.514AlaMet: 2.514 ± 0.034
1.901AlaAsn: 1.901 ± 0.034
7.834AlaPro: 7.834 ± 0.087
3.605AlaGln: 3.605 ± 0.055
10.944AlaArg: 10.944 ± 0.101
6.16AlaSer: 6.16 ± 0.061
6.856AlaThr: 6.856 ± 0.069
12.577AlaVal: 12.577 ± 0.087
1.842AlaTrp: 1.842 ± 0.036
2.805AlaTyr: 2.805 ± 0.036
0.0AlaXaa: 0.0 ± 0.0
Cys
1.123CysAla: 1.123 ± 0.025
0.087CysCys: 0.087 ± 0.006
0.466CysAsp: 0.466 ± 0.017
0.405CysGlu: 0.405 ± 0.016
0.23CysPhe: 0.23 ± 0.011
1.005CysGly: 1.005 ± 0.026
0.2CysHis: 0.2 ± 0.011
0.156CysIle: 0.156 ± 0.009
0.098CysLys: 0.098 ± 0.007
0.7CysLeu: 0.7 ± 0.02
0.124CysMet: 0.124 ± 0.008
0.122CysAsn: 0.122 ± 0.008
0.505CysPro: 0.505 ± 0.015
0.153CysGln: 0.153 ± 0.008
0.65CysArg: 0.65 ± 0.018
0.427CysSer: 0.427 ± 0.015
0.499CysThr: 0.499 ± 0.018
0.674CysVal: 0.674 ± 0.02
0.119CysTrp: 0.119 ± 0.008
0.146CysTyr: 0.146 ± 0.009
0.0CysXaa: 0.0 ± 0.0
Asp
8.259AspAla: 8.259 ± 0.073
0.416AspCys: 0.416 ± 0.016
3.645AspAsp: 3.645 ± 0.047
3.883AspGlu: 3.883 ± 0.048
1.618AspPhe: 1.618 ± 0.031
6.569AspGly: 6.569 ± 0.073
1.359AspHis: 1.359 ± 0.029
1.795AspIle: 1.795 ± 0.034
1.09AspLys: 1.09 ± 0.028
6.088AspLeu: 6.088 ± 0.063
0.78AspMet: 0.78 ± 0.022
0.877AspAsn: 0.877 ± 0.023
4.607AspPro: 4.607 ± 0.054
1.502AspGln: 1.502 ± 0.03
5.407AspArg: 5.407 ± 0.059
2.525AspSer: 2.525 ± 0.036
3.095AspThr: 3.095 ± 0.046
4.711AspVal: 4.711 ± 0.051
0.976AspTrp: 0.976 ± 0.023
1.065AspTyr: 1.065 ± 0.025
0.0AspXaa: 0.0 ± 0.0
Glu
7.571GluAla: 7.571 ± 0.093
0.359GluCys: 0.359 ± 0.015
2.945GluAsp: 2.945 ± 0.039
3.694GluGlu: 3.694 ± 0.057
1.385GluPhe: 1.385 ± 0.028
4.46GluGly: 4.46 ± 0.056
1.506GluHis: 1.506 ± 0.03
2.266GluIle: 2.266 ± 0.04
1.522GluLys: 1.522 ± 0.034
6.7GluLeu: 6.7 ± 0.071
0.876GluMet: 0.876 ± 0.024
1.028GluAsn: 1.028 ± 0.024
3.516GluPro: 3.516 ± 0.049
2.202GluGln: 2.202 ± 0.036
5.797GluArg: 5.797 ± 0.065
2.666GluSer: 2.666 ± 0.041
2.859GluThr: 2.859 ± 0.036
4.287GluVal: 4.287 ± 0.056
0.719GluTrp: 0.719 ± 0.017
1.058GluTyr: 1.058 ± 0.027
0.0GluXaa: 0.0 ± 0.0
Phe
3.727PheAla: 3.727 ± 0.046
0.288PheCys: 0.288 ± 0.012
1.932PheAsp: 1.932 ± 0.038
1.386PheGlu: 1.386 ± 0.028
0.85PhePhe: 0.85 ± 0.025
2.933PheGly: 2.933 ± 0.042
0.594PheHis: 0.594 ± 0.018
0.707PheIle: 0.707 ± 0.02
0.453PheLys: 0.453 ± 0.016
2.533PheLeu: 2.533 ± 0.039
0.373PheMet: 0.373 ± 0.016
0.512PheAsn: 0.512 ± 0.018
1.395PhePro: 1.395 ± 0.033
0.638PheGln: 0.638 ± 0.019
1.878PheArg: 1.878 ± 0.032
1.478PheSer: 1.478 ± 0.031
1.994PheThr: 1.994 ± 0.029
2.116PheVal: 2.116 ± 0.036
0.398PheTrp: 0.398 ± 0.016
0.534PheTyr: 0.534 ± 0.018
0.0PheXaa: 0.0 ± 0.0
Gly
11.599GlyAla: 11.599 ± 0.09
0.828GlyCys: 0.828 ± 0.019
5.319GlyAsp: 5.319 ± 0.052
5.287GlyGlu: 5.287 ± 0.056
2.853GlyPhe: 2.853 ± 0.042
9.608GlyGly: 9.608 ± 0.111
2.278GlyHis: 2.278 ± 0.037
3.242GlyIle: 3.242 ± 0.041
2.285GlyLys: 2.285 ± 0.045
9.358GlyLeu: 9.358 ± 0.087
1.958GlyMet: 1.958 ± 0.031
1.698GlyAsn: 1.698 ± 0.035
5.815GlyPro: 5.815 ± 0.063
2.606GlyGln: 2.606 ± 0.039
8.502GlyArg: 8.502 ± 0.085
5.707GlySer: 5.707 ± 0.058
6.081GlyThr: 6.081 ± 0.061
7.567GlyVal: 7.567 ± 0.078
1.637GlyTrp: 1.637 ± 0.029
2.215GlyTyr: 2.215 ± 0.042
0.0GlyXaa: 0.0 ± 0.0
His
2.63HisAla: 2.63 ± 0.044
0.216HisCys: 0.216 ± 0.01
1.326HisAsp: 1.326 ± 0.028
1.146HisGlu: 1.146 ± 0.023
0.615HisPhe: 0.615 ± 0.018
2.387HisGly: 2.387 ± 0.041
0.67HisHis: 0.67 ± 0.02
0.639HisIle: 0.639 ± 0.018
0.299HisLys: 0.299 ± 0.014
2.347HisLeu: 2.347 ± 0.042
0.303HisMet: 0.303 ± 0.013
0.337HisAsn: 0.337 ± 0.014
1.757HisPro: 1.757 ± 0.032
0.618HisGln: 0.618 ± 0.018
2.254HisArg: 2.254 ± 0.038
1.01HisSer: 1.01 ± 0.022
1.286HisThr: 1.286 ± 0.027
1.578HisVal: 1.578 ± 0.032
0.348HisTrp: 0.348 ± 0.014
0.463HisTyr: 0.463 ± 0.018
0.0HisXaa: 0.0 ± 0.0
Ile
4.818IleAla: 4.818 ± 0.053
0.281IleCys: 0.281 ± 0.011
2.187IleAsp: 2.187 ± 0.04
1.858IleGlu: 1.858 ± 0.03
0.665IlePhe: 0.665 ± 0.018
3.521IleGly: 3.521 ± 0.05
0.588IleHis: 0.588 ± 0.019
0.826IleIle: 0.826 ± 0.02
0.659IleLys: 0.659 ± 0.02
2.332IleLeu: 2.332 ± 0.036
0.434IleMet: 0.434 ± 0.017
0.639IleAsn: 0.639 ± 0.018
1.722IlePro: 1.722 ± 0.033
0.699IleGln: 0.699 ± 0.019
2.17IleArg: 2.17 ± 0.033
1.634IleSer: 1.634 ± 0.029
2.137IleThr: 2.137 ± 0.033
2.688IleVal: 2.688 ± 0.041
0.382IleTrp: 0.382 ± 0.013
0.472IleTyr: 0.472 ± 0.016
0.0IleXaa: 0.0 ± 0.0
Lys
2.791LysAla: 2.791 ± 0.049
0.106LysCys: 0.106 ± 0.007
1.312LysAsp: 1.312 ± 0.032
1.182LysGlu: 1.182 ± 0.028
0.431LysPhe: 0.431 ± 0.014
1.775LysGly: 1.775 ± 0.036
0.389LysHis: 0.389 ± 0.014
0.843LysIle: 0.843 ± 0.026
0.866LysLys: 0.866 ± 0.035
1.94LysLeu: 1.94 ± 0.04
0.357LysMet: 0.357 ± 0.015
0.556LysAsn: 0.556 ± 0.021
1.342LysPro: 1.342 ± 0.033
0.669LysGln: 0.669 ± 0.021
1.453LysArg: 1.453 ± 0.029
1.081LysSer: 1.081 ± 0.024
1.212LysThr: 1.212 ± 0.029
1.751LysVal: 1.751 ± 0.038
0.232LysTrp: 0.232 ± 0.012
0.398LysTyr: 0.398 ± 0.014
0.0LysXaa: 0.0 ± 0.0
Leu
15.054LeuAla: 15.054 ± 0.133
0.849LeuCys: 0.849 ± 0.021
6.695LeuAsp: 6.695 ± 0.063
4.65LeuGlu: 4.65 ± 0.055
2.521LeuPhe: 2.521 ± 0.04
9.089LeuGly: 9.089 ± 0.086
2.271LeuHis: 2.271 ± 0.036
3.216LeuIle: 3.216 ± 0.042
1.92LeuLys: 1.92 ± 0.033
11.213LeuLeu: 11.213 ± 0.128
1.589LeuMet: 1.589 ± 0.032
1.69LeuAsn: 1.69 ± 0.032
6.535LeuPro: 6.535 ± 0.063
2.078LeuGln: 2.078 ± 0.037
8.655LeuArg: 8.655 ± 0.09
5.356LeuSer: 5.356 ± 0.054
6.544LeuThr: 6.544 ± 0.064
8.611LeuVal: 8.611 ± 0.082
1.282LeuTrp: 1.282 ± 0.028
1.772LeuTyr: 1.772 ± 0.028
0.0LeuXaa: 0.0 ± 0.0
Met
2.194MetAla: 2.194 ± 0.035
0.132MetCys: 0.132 ± 0.009
0.86MetAsp: 0.86 ± 0.019
0.8MetGlu: 0.8 ± 0.022
0.444MetPhe: 0.444 ± 0.015
1.266MetGly: 1.266 ± 0.028
0.329MetHis: 0.329 ± 0.014
0.681MetIle: 0.681 ± 0.019
0.418MetLys: 0.418 ± 0.014
1.619MetLeu: 1.619 ± 0.03
0.29MetMet: 0.29 ± 0.012
0.452MetAsn: 0.452 ± 0.016
1.089MetPro: 1.089 ± 0.026
0.402MetGln: 0.402 ± 0.015
1.479MetArg: 1.479 ± 0.028
1.345MetSer: 1.345 ± 0.028
1.504MetThr: 1.504 ± 0.029
1.236MetVal: 1.236 ± 0.023
0.181MetTrp: 0.181 ± 0.009
0.295MetTyr: 0.295 ± 0.012
0.0MetXaa: 0.0 ± 0.0
Asn
2.218AsnAla: 2.218 ± 0.032
0.143AsnCys: 0.143 ± 0.008
0.952AsnAsp: 0.952 ± 0.023
0.811AsnGlu: 0.811 ± 0.022
0.44AsnPhe: 0.44 ± 0.015
1.871AsnGly: 1.871 ± 0.042
0.347AsnHis: 0.347 ± 0.014
0.618AsnIle: 0.618 ± 0.021
0.407AsnLys: 0.407 ± 0.019
1.577AsnLeu: 1.577 ± 0.026
0.292AsnMet: 0.292 ± 0.013
0.385AsnAsn: 0.385 ± 0.018
1.31AsnPro: 1.31 ± 0.03
0.468AsnGln: 0.468 ± 0.018
1.295AsnArg: 1.295 ± 0.026
0.89AsnSer: 0.89 ± 0.025
1.083AsnThr: 1.083 ± 0.028
1.315AsnVal: 1.315 ± 0.028
0.261AsnTrp: 0.261 ± 0.012
0.379AsnTyr: 0.379 ± 0.015
0.0AsnXaa: 0.0 ± 0.0
Pro
9.487ProAla: 9.487 ± 0.092
0.342ProCys: 0.342 ± 0.013
4.732ProAsp: 4.732 ± 0.055
4.312ProGlu: 4.312 ± 0.055
1.558ProPhe: 1.558 ± 0.031
7.035ProGly: 7.035 ± 0.075
1.384ProHis: 1.384 ± 0.03
1.224ProIle: 1.224 ± 0.027
1.159ProLys: 1.159 ± 0.028
5.394ProLeu: 5.394 ± 0.052
0.992ProMet: 0.992 ± 0.024
0.869ProAsn: 0.869 ± 0.026
3.958ProPro: 3.958 ± 0.073
1.758ProGln: 1.758 ± 0.035
4.206ProArg: 4.206 ± 0.045
3.362ProSer: 3.362 ± 0.054
3.031ProThr: 3.031 ± 0.048
5.666ProVal: 5.666 ± 0.046
0.885ProTrp: 0.885 ± 0.022
1.451ProTyr: 1.451 ± 0.029
0.0ProXaa: 0.0 ± 0.0
Gln
3.499GlnAla: 3.499 ± 0.049
0.149GlnCys: 0.149 ± 0.01
1.419GlnAsp: 1.419 ± 0.027
1.538GlnGlu: 1.538 ± 0.029
0.651GlnPhe: 0.651 ± 0.019
2.186GlnGly: 2.186 ± 0.034
0.635GlnHis: 0.635 ± 0.019
1.066GlnIle: 1.066 ± 0.024
0.624GlnLys: 0.624 ± 0.019
2.79GlnLeu: 2.79 ± 0.044
0.488GlnMet: 0.488 ± 0.017
0.492GlnAsn: 0.492 ± 0.017
1.648GlnPro: 1.648 ± 0.044
1.201GlnGln: 1.201 ± 0.037
2.326GlnArg: 2.326 ± 0.034
1.243GlnSer: 1.243 ± 0.025
1.254GlnThr: 1.254 ± 0.028
2.247GlnVal: 2.247 ± 0.033
0.399GlnTrp: 0.399 ± 0.015
0.554GlnTyr: 0.554 ± 0.017
0.0GlnXaa: 0.0 ± 0.0
Arg
10.469ArgAla: 10.469 ± 0.095
0.62ArgCys: 0.62 ± 0.018
4.467ArgAsp: 4.467 ± 0.056
4.867ArgGlu: 4.867 ± 0.057
2.405ArgPhe: 2.405 ± 0.038
6.297ArgGly: 6.297 ± 0.06
2.057ArgHis: 2.057 ± 0.032
3.292ArgIle: 3.292 ± 0.042
1.644ArgLys: 1.644 ± 0.029
8.943ArgLeu: 8.943 ± 0.082
1.796ArgMet: 1.796 ± 0.035
1.42ArgAsn: 1.42 ± 0.028
5.375ArgPro: 5.375 ± 0.056
2.227ArgGln: 2.227 ± 0.033
8.18ArgArg: 8.18 ± 0.083
4.52ArgSer: 4.52 ± 0.05
5.933ArgThr: 5.933 ± 0.062
5.973ArgVal: 5.973 ± 0.061
1.383ArgTrp: 1.383 ± 0.026
1.799ArgTyr: 1.799 ± 0.031
0.0ArgXaa: 0.0 ± 0.0
Ser
7.251SerAla: 7.251 ± 0.064
0.426SerCys: 0.426 ± 0.015
2.74SerAsp: 2.74 ± 0.04
2.44SerGlu: 2.44 ± 0.035
1.522SerPhe: 1.522 ± 0.028
6.153SerGly: 6.153 ± 0.068
1.036SerHis: 1.036 ± 0.023
1.449SerIle: 1.449 ± 0.031
0.975SerLys: 0.975 ± 0.023
4.811SerLeu: 4.811 ± 0.051
1.061SerMet: 1.061 ± 0.024
0.807SerAsn: 0.807 ± 0.024
3.337SerPro: 3.337 ± 0.044
1.229SerGln: 1.229 ± 0.026
3.84SerArg: 3.84 ± 0.044
2.92SerSer: 2.92 ± 0.048
3.079SerThr: 3.079 ± 0.047
4.383SerVal: 4.383 ± 0.055
0.876SerTrp: 0.876 ± 0.023
1.193SerTyr: 1.193 ± 0.028
0.0SerXaa: 0.0 ± 0.0
Thr
9.104ThrAla: 9.104 ± 0.076
0.426ThrCys: 0.426 ± 0.016
3.448ThrAsp: 3.448 ± 0.049
3.181ThrGlu: 3.181 ± 0.048
1.519ThrPhe: 1.519 ± 0.03
6.85ThrGly: 6.85 ± 0.073
1.099ThrHis: 1.099 ± 0.026
1.599ThrIle: 1.599 ± 0.028
1.078ThrLys: 1.078 ± 0.027
5.474ThrLeu: 5.474 ± 0.053
0.876ThrMet: 0.876 ± 0.024
0.922ThrAsn: 0.922 ± 0.022
4.022ThrPro: 4.022 ± 0.048
1.226ThrGln: 1.226 ± 0.027
3.934ThrArg: 3.934 ± 0.057
3.083ThrSer: 3.083 ± 0.047
3.693ThrThr: 3.693 ± 0.051
5.95ThrVal: 5.95 ± 0.056
0.857ThrTrp: 0.857 ± 0.022
1.262ThrTyr: 1.262 ± 0.032
0.0ThrXaa: 0.0 ± 0.0
Val
10.674ValAla: 10.674 ± 0.09
0.777ValCys: 0.777 ± 0.02
4.982ValAsp: 4.982 ± 0.055
4.817ValGlu: 4.817 ± 0.06
2.307ValPhe: 2.307 ± 0.04
6.457ValGly: 6.457 ± 0.06
1.949ValHis: 1.949 ± 0.037
2.77ValIle: 2.77 ± 0.043
1.663ValLys: 1.663 ± 0.037
9.471ValLeu: 9.471 ± 0.083
1.381ValMet: 1.381 ± 0.029
1.6ValAsn: 1.6 ± 0.034
5.267ValPro: 5.267 ± 0.058
2.015ValGln: 2.015 ± 0.031
7.515ValArg: 7.515 ± 0.069
4.269ValSer: 4.269 ± 0.049
5.292ValThr: 5.292 ± 0.051
7.759ValVal: 7.759 ± 0.088
1.075ValTrp: 1.075 ± 0.024
1.549ValTyr: 1.549 ± 0.03
0.0ValXaa: 0.0 ± 0.0
Trp
1.643TrpAla: 1.643 ± 0.03
0.171TrpCys: 0.171 ± 0.009
0.79TrpAsp: 0.79 ± 0.021
0.706TrpGlu: 0.706 ± 0.019
0.514TrpPhe: 0.514 ± 0.016
0.986TrpGly: 0.986 ± 0.022
0.345TrpHis: 0.345 ± 0.014
0.559TrpIle: 0.559 ± 0.019
0.362TrpLys: 0.362 ± 0.015
1.631TrpLeu: 1.631 ± 0.033
0.295TrpMet: 0.295 ± 0.012
0.399TrpAsn: 0.399 ± 0.015
0.75TrpPro: 0.75 ± 0.021
0.548TrpGln: 0.548 ± 0.018
1.326TrpArg: 1.326 ± 0.026
0.932TrpSer: 0.932 ± 0.02
0.982TrpThr: 0.982 ± 0.023
0.917TrpVal: 0.917 ± 0.022
0.328TrpTrp: 0.328 ± 0.014
0.326TrpTyr: 0.326 ± 0.014
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.839TyrAla: 2.839 ± 0.039
0.171TyrCys: 0.171 ± 0.009
1.395TyrAsp: 1.395 ± 0.03
1.244TyrGlu: 1.244 ± 0.028
0.631TyrPhe: 0.631 ± 0.019
2.256TyrGly: 2.256 ± 0.043
0.361TyrHis: 0.361 ± 0.012
0.449TyrIle: 0.449 ± 0.017
0.342TyrLys: 0.342 ± 0.014
1.996TyrLeu: 1.996 ± 0.032
0.235TyrMet: 0.235 ± 0.011
0.356TyrAsn: 0.356 ± 0.013
1.02TyrPro: 1.02 ± 0.023
0.566TyrGln: 0.566 ± 0.018
1.855TyrArg: 1.855 ± 0.034
0.92TyrSer: 0.92 ± 0.023
1.19TyrThr: 1.19 ± 0.025
1.583TyrVal: 1.583 ± 0.033
0.329TyrTrp: 0.329 ± 0.014
0.414TyrTyr: 0.414 ± 0.015
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 5946 proteins (1954771 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