Amino acid dipepetide frequency for Streptomyces lincolnensis

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
20.162AlaAla: 20.162 ± 0.115
1.042AlaCys: 1.042 ± 0.018
8.28AlaAsp: 8.28 ± 0.062
8.488AlaGlu: 8.488 ± 0.082
3.491AlaPhe: 3.491 ± 0.035
12.627AlaGly: 12.627 ± 0.083
2.886AlaHis: 2.886 ± 0.034
3.41AlaIle: 3.41 ± 0.04
2.795AlaLys: 2.795 ± 0.047
14.499AlaLeu: 14.499 ± 0.097
2.414AlaMet: 2.414 ± 0.033
1.924AlaAsn: 1.924 ± 0.032
6.886AlaPro: 6.886 ± 0.076
3.68AlaGln: 3.68 ± 0.041
10.211AlaArg: 10.211 ± 0.067
5.873AlaSer: 5.873 ± 0.048
7.159AlaThr: 7.159 ± 0.051
12.256AlaVal: 12.256 ± 0.068
1.926AlaTrp: 1.926 ± 0.029
2.812AlaTyr: 2.812 ± 0.033
0.0AlaXaa: 0.0 ± 0.0
Cys
1.083CysAla: 1.083 ± 0.021
0.086CysCys: 0.086 ± 0.006
0.444CysAsp: 0.444 ± 0.014
0.397CysGlu: 0.397 ± 0.013
0.218CysPhe: 0.218 ± 0.007
0.941CysGly: 0.941 ± 0.021
0.192CysHis: 0.192 ± 0.008
0.151CysIle: 0.151 ± 0.007
0.099CysLys: 0.099 ± 0.006
0.748CysLeu: 0.748 ± 0.017
0.111CysMet: 0.111 ± 0.006
0.123CysAsn: 0.123 ± 0.007
0.436CysPro: 0.436 ± 0.013
0.155CysGln: 0.155 ± 0.007
0.574CysArg: 0.574 ± 0.015
0.409CysSer: 0.409 ± 0.011
0.501CysThr: 0.501 ± 0.014
0.675CysVal: 0.675 ± 0.016
0.129CysTrp: 0.129 ± 0.006
0.154CysTyr: 0.154 ± 0.008
0.0CysXaa: 0.0 ± 0.0
Asp
7.47AspAla: 7.47 ± 0.047
0.429AspCys: 0.429 ± 0.013
3.676AspAsp: 3.676 ± 0.042
3.834AspGlu: 3.834 ± 0.044
1.692AspPhe: 1.692 ± 0.024
6.54AspGly: 6.54 ± 0.055
1.499AspHis: 1.499 ± 0.021
1.96AspIle: 1.96 ± 0.025
1.223AspLys: 1.223 ± 0.027
6.356AspLeu: 6.356 ± 0.048
0.824AspMet: 0.824 ± 0.018
0.999AspAsn: 0.999 ± 0.021
4.574AspPro: 4.574 ± 0.045
1.552AspGln: 1.552 ± 0.027
5.013AspArg: 5.013 ± 0.043
2.657AspSer: 2.657 ± 0.028
3.484AspThr: 3.484 ± 0.033
4.844AspVal: 4.844 ± 0.049
1.063AspTrp: 1.063 ± 0.019
1.122AspTyr: 1.122 ± 0.021
0.0AspXaa: 0.0 ± 0.0
Glu
7.224GluAla: 7.224 ± 0.076
0.341GluCys: 0.341 ± 0.012
2.859GluAsp: 2.859 ± 0.035
3.523GluGlu: 3.523 ± 0.048
1.5GluPhe: 1.5 ± 0.024
4.283GluGly: 4.283 ± 0.042
1.536GluHis: 1.536 ± 0.023
2.236GluIle: 2.236 ± 0.031
1.442GluLys: 1.442 ± 0.03
6.615GluLeu: 6.615 ± 0.065
0.839GluMet: 0.839 ± 0.018
1.042GluAsn: 1.042 ± 0.018
3.412GluPro: 3.412 ± 0.038
2.231GluGln: 2.231 ± 0.026
5.409GluArg: 5.409 ± 0.049
2.595GluSer: 2.595 ± 0.034
2.929GluThr: 2.929 ± 0.034
4.414GluVal: 4.414 ± 0.046
0.769GluTrp: 0.769 ± 0.016
1.123GluTyr: 1.123 ± 0.019
0.0GluXaa: 0.0 ± 0.0
Phe
3.618PheAla: 3.618 ± 0.044
0.247PheCys: 0.247 ± 0.009
1.984PheAsp: 1.984 ± 0.026
1.466PheGlu: 1.466 ± 0.023
0.874PhePhe: 0.874 ± 0.017
3.023PheGly: 3.023 ± 0.036
0.627PheHis: 0.627 ± 0.015
0.684PheIle: 0.684 ± 0.018
0.517PheLys: 0.517 ± 0.016
2.651PheLeu: 2.651 ± 0.036
0.407PheMet: 0.407 ± 0.013
0.578PheAsn: 0.578 ± 0.013
1.392PhePro: 1.392 ± 0.019
0.712PheGln: 0.712 ± 0.017
1.891PheArg: 1.891 ± 0.031
1.511PheSer: 1.511 ± 0.024
2.101PheThr: 2.101 ± 0.028
2.288PheVal: 2.288 ± 0.03
0.443PheTrp: 0.443 ± 0.012
0.614PheTyr: 0.614 ± 0.015
0.0PheXaa: 0.0 ± 0.0
Gly
10.848GlyAla: 10.848 ± 0.079
0.793GlyCys: 0.793 ± 0.017
5.221GlyAsp: 5.221 ± 0.046
5.039GlyGlu: 5.039 ± 0.042
2.93GlyPhe: 2.93 ± 0.031
8.646GlyGly: 8.646 ± 0.081
2.357GlyHis: 2.357 ± 0.031
3.496GlyIle: 3.496 ± 0.039
2.36GlyLys: 2.36 ± 0.038
9.479GlyLeu: 9.479 ± 0.066
1.954GlyMet: 1.954 ± 0.027
1.77GlyAsn: 1.77 ± 0.032
5.093GlyPro: 5.093 ± 0.049
2.692GlyGln: 2.692 ± 0.03
7.793GlyArg: 7.793 ± 0.056
5.352GlySer: 5.352 ± 0.053
6.662GlyThr: 6.662 ± 0.062
7.552GlyVal: 7.552 ± 0.055
1.704GlyTrp: 1.704 ± 0.026
2.322GlyTyr: 2.322 ± 0.031
0.0GlyXaa: 0.0 ± 0.0
His
2.652HisAla: 2.652 ± 0.033
0.213HisCys: 0.213 ± 0.01
1.423HisAsp: 1.423 ± 0.024
1.22HisGlu: 1.22 ± 0.023
0.66HisPhe: 0.66 ± 0.016
2.418HisGly: 2.418 ± 0.031
0.717HisHis: 0.717 ± 0.017
0.681HisIle: 0.681 ± 0.013
0.368HisLys: 0.368 ± 0.011
2.509HisLeu: 2.509 ± 0.037
0.337HisMet: 0.337 ± 0.011
0.389HisAsn: 0.389 ± 0.012
1.845HisPro: 1.845 ± 0.03
0.627HisGln: 0.627 ± 0.014
2.181HisArg: 2.181 ± 0.027
1.023HisSer: 1.023 ± 0.019
1.409HisThr: 1.409 ± 0.021
1.758HisVal: 1.758 ± 0.024
0.41HisTrp: 0.41 ± 0.012
0.508HisTyr: 0.508 ± 0.013
0.0HisXaa: 0.0 ± 0.0
Ile
4.713IleAla: 4.713 ± 0.049
0.268IleCys: 0.268 ± 0.011
2.232IleAsp: 2.232 ± 0.028
1.891IleGlu: 1.891 ± 0.029
0.712IlePhe: 0.712 ± 0.015
3.514IleGly: 3.514 ± 0.043
0.629IleHis: 0.629 ± 0.013
0.831IleIle: 0.831 ± 0.019
0.716IleLys: 0.716 ± 0.017
2.473IleLeu: 2.473 ± 0.033
0.456IleMet: 0.456 ± 0.014
0.687IleAsn: 0.687 ± 0.017
1.832IlePro: 1.832 ± 0.024
0.741IleGln: 0.741 ± 0.017
2.265IleArg: 2.265 ± 0.026
1.661IleSer: 1.661 ± 0.026
2.256IleThr: 2.256 ± 0.026
2.71IleVal: 2.71 ± 0.036
0.374IleTrp: 0.374 ± 0.011
0.531IleTyr: 0.531 ± 0.013
0.0IleXaa: 0.0 ± 0.0
Lys
2.941LysAla: 2.941 ± 0.044
0.106LysCys: 0.106 ± 0.006
1.393LysAsp: 1.393 ± 0.026
1.202LysGlu: 1.202 ± 0.024
0.441LysPhe: 0.441 ± 0.014
1.879LysGly: 1.879 ± 0.033
0.442LysHis: 0.442 ± 0.013
0.827LysIle: 0.827 ± 0.018
0.858LysLys: 0.858 ± 0.027
1.986LysLeu: 1.986 ± 0.032
0.369LysMet: 0.369 ± 0.012
0.545LysAsn: 0.545 ± 0.019
1.346LysPro: 1.346 ± 0.023
0.697LysGln: 0.697 ± 0.021
1.405LysArg: 1.405 ± 0.026
1.154LysSer: 1.154 ± 0.021
1.266LysThr: 1.266 ± 0.024
1.922LysVal: 1.922 ± 0.028
0.29LysTrp: 0.29 ± 0.01
0.469LysTyr: 0.469 ± 0.015
0.0LysXaa: 0.0 ± 0.0
Leu
15.044LeuAla: 15.044 ± 0.091
0.846LeuCys: 0.846 ± 0.019
6.825LeuAsp: 6.825 ± 0.052
4.562LeuGlu: 4.562 ± 0.046
2.663LeuPhe: 2.663 ± 0.034
9.291LeuGly: 9.291 ± 0.068
2.323LeuHis: 2.323 ± 0.035
3.239LeuIle: 3.239 ± 0.036
2.172LeuLys: 2.172 ± 0.035
11.529LeuLeu: 11.529 ± 0.084
1.673LeuMet: 1.673 ± 0.026
1.727LeuAsn: 1.727 ± 0.023
6.507LeuPro: 6.507 ± 0.055
2.138LeuGln: 2.138 ± 0.027
8.668LeuArg: 8.668 ± 0.075
5.412LeuSer: 5.412 ± 0.046
7.184LeuThr: 7.184 ± 0.059
8.955LeuVal: 8.955 ± 0.061
1.345LeuTrp: 1.345 ± 0.023
1.906LeuTyr: 1.906 ± 0.028
0.0LeuXaa: 0.0 ± 0.0
Met
2.191MetAla: 2.191 ± 0.028
0.134MetCys: 0.134 ± 0.007
0.896MetAsp: 0.896 ± 0.019
0.738MetGlu: 0.738 ± 0.015
0.453MetPhe: 0.453 ± 0.013
1.334MetGly: 1.334 ± 0.023
0.353MetHis: 0.353 ± 0.011
0.67MetIle: 0.67 ± 0.015
0.424MetLys: 0.424 ± 0.012
1.698MetLeu: 1.698 ± 0.028
0.32MetMet: 0.32 ± 0.01
0.428MetAsn: 0.428 ± 0.013
1.102MetPro: 1.102 ± 0.021
0.418MetGln: 0.418 ± 0.013
1.388MetArg: 1.388 ± 0.022
1.316MetSer: 1.316 ± 0.022
1.542MetThr: 1.542 ± 0.025
1.282MetVal: 1.282 ± 0.021
0.222MetTrp: 0.222 ± 0.009
0.32MetTyr: 0.32 ± 0.011
0.0MetXaa: 0.0 ± 0.0
Asn
2.192AsnAla: 2.192 ± 0.03
0.155AsnCys: 0.155 ± 0.008
0.997AsnAsp: 0.997 ± 0.018
0.791AsnGlu: 0.791 ± 0.018
0.496AsnPhe: 0.496 ± 0.014
1.973AsnGly: 1.973 ± 0.033
0.404AsnHis: 0.404 ± 0.013
0.67AsnIle: 0.67 ± 0.016
0.419AsnLys: 0.419 ± 0.014
1.636AsnLeu: 1.636 ± 0.026
0.298AsnMet: 0.298 ± 0.01
0.469AsnAsn: 0.469 ± 0.015
1.373AsnPro: 1.373 ± 0.026
0.562AsnGln: 0.562 ± 0.015
1.269AsnArg: 1.269 ± 0.021
1.001AsnSer: 1.001 ± 0.024
1.189AsnThr: 1.189 ± 0.02
1.382AsnVal: 1.382 ± 0.025
0.311AsnTrp: 0.311 ± 0.012
0.432AsnTyr: 0.432 ± 0.012
0.0AsnXaa: 0.0 ± 0.0
Pro
8.311ProAla: 8.311 ± 0.073
0.322ProCys: 0.322 ± 0.01
4.666ProAsp: 4.666 ± 0.043
4.379ProGlu: 4.379 ± 0.044
1.54ProPhe: 1.54 ± 0.023
6.457ProGly: 6.457 ± 0.067
1.464ProHis: 1.464 ± 0.023
1.236ProIle: 1.236 ± 0.023
1.177ProLys: 1.177 ± 0.024
5.454ProLeu: 5.454 ± 0.052
0.985ProMet: 0.985 ± 0.02
0.922ProAsn: 0.922 ± 0.017
3.492ProPro: 3.492 ± 0.057
1.729ProGln: 1.729 ± 0.029
3.983ProArg: 3.983 ± 0.043
3.196ProSer: 3.196 ± 0.044
3.445ProThr: 3.445 ± 0.042
5.427ProVal: 5.427 ± 0.051
0.93ProTrp: 0.93 ± 0.02
1.457ProTyr: 1.457 ± 0.023
0.0ProXaa: 0.0 ± 0.0
Gln
3.645GlnAla: 3.645 ± 0.04
0.173GlnCys: 0.173 ± 0.007
1.47GlnAsp: 1.47 ± 0.024
1.478GlnGlu: 1.478 ± 0.023
0.689GlnPhe: 0.689 ± 0.016
2.313GlnGly: 2.313 ± 0.029
0.643GlnHis: 0.643 ± 0.015
1.073GlnIle: 1.073 ± 0.02
0.596GlnLys: 0.596 ± 0.017
2.981GlnLeu: 2.981 ± 0.032
0.478GlnMet: 0.478 ± 0.012
0.515GlnAsn: 0.515 ± 0.013
1.666GlnPro: 1.666 ± 0.035
1.213GlnGln: 1.213 ± 0.025
2.327GlnArg: 2.327 ± 0.031
1.303GlnSer: 1.303 ± 0.022
1.347GlnThr: 1.347 ± 0.021
2.369GlnVal: 2.369 ± 0.031
0.509GlnTrp: 0.509 ± 0.015
0.631GlnTyr: 0.631 ± 0.017
0.0GlnXaa: 0.0 ± 0.0
Arg
9.859ArgAla: 9.859 ± 0.084
0.581ArgCys: 0.581 ± 0.016
4.286ArgAsp: 4.286 ± 0.041
4.771ArgGlu: 4.771 ± 0.049
2.362ArgPhe: 2.362 ± 0.028
5.722ArgGly: 5.722 ± 0.046
2.213ArgHis: 2.213 ± 0.028
3.252ArgIle: 3.252 ± 0.036
1.566ArgLys: 1.566 ± 0.026
9.04ArgLeu: 9.04 ± 0.066
1.722ArgMet: 1.722 ± 0.022
1.324ArgAsn: 1.324 ± 0.024
4.939ArgPro: 4.939 ± 0.048
2.336ArgGln: 2.336 ± 0.036
7.644ArgArg: 7.644 ± 0.065
3.928ArgSer: 3.928 ± 0.037
5.622ArgThr: 5.622 ± 0.046
5.906ArgVal: 5.906 ± 0.052
1.388ArgTrp: 1.388 ± 0.023
1.813ArgTyr: 1.813 ± 0.022
0.0ArgXaa: 0.0 ± 0.0
Ser
6.671SerAla: 6.671 ± 0.055
0.403SerCys: 0.403 ± 0.013
2.762SerAsp: 2.762 ± 0.029
2.415SerGlu: 2.415 ± 0.034
1.524SerPhe: 1.524 ± 0.024
6.023SerGly: 6.023 ± 0.056
1.008SerHis: 1.008 ± 0.02
1.418SerIle: 1.418 ± 0.023
1.028SerLys: 1.028 ± 0.022
4.859SerLeu: 4.859 ± 0.046
1.065SerMet: 1.065 ± 0.02
0.897SerAsn: 0.897 ± 0.021
3.243SerPro: 3.243 ± 0.037
1.218SerGln: 1.218 ± 0.022
3.679SerArg: 3.679 ± 0.036
2.797SerSer: 2.797 ± 0.043
3.178SerThr: 3.178 ± 0.039
4.364SerVal: 4.364 ± 0.043
0.943SerTrp: 0.943 ± 0.021
1.294SerTyr: 1.294 ± 0.022
0.0SerXaa: 0.0 ± 0.0
Thr
9.132ThrAla: 9.132 ± 0.068
0.428ThrCys: 0.428 ± 0.012
3.849ThrAsp: 3.849 ± 0.043
3.356ThrGlu: 3.356 ± 0.036
1.709ThrPhe: 1.709 ± 0.025
6.905ThrGly: 6.905 ± 0.057
1.291ThrHis: 1.291 ± 0.023
1.733ThrIle: 1.733 ± 0.026
1.224ThrLys: 1.224 ± 0.022
5.978ThrLeu: 5.978 ± 0.051
0.991ThrMet: 0.991 ± 0.021
1.087ThrAsn: 1.087 ± 0.024
4.274ThrPro: 4.274 ± 0.049
1.364ThrGln: 1.364 ± 0.022
4.085ThrArg: 4.085 ± 0.042
3.246ThrSer: 3.246 ± 0.045
4.11ThrThr: 4.11 ± 0.048
6.355ThrVal: 6.355 ± 0.056
0.967ThrTrp: 0.967 ± 0.017
1.482ThrTyr: 1.482 ± 0.027
0.0ThrXaa: 0.0 ± 0.0
Val
10.568ValAla: 10.568 ± 0.068
0.75ValCys: 0.75 ± 0.018
5.043ValAsp: 5.043 ± 0.039
4.762ValGlu: 4.762 ± 0.043
2.464ValPhe: 2.464 ± 0.034
6.661ValGly: 6.661 ± 0.058
1.98ValHis: 1.98 ± 0.027
2.838ValIle: 2.838 ± 0.034
1.751ValLys: 1.751 ± 0.029
9.599ValLeu: 9.599 ± 0.069
1.436ValMet: 1.436 ± 0.024
1.675ValAsn: 1.675 ± 0.027
5.301ValPro: 5.301 ± 0.051
2.088ValGln: 2.088 ± 0.026
7.258ValArg: 7.258 ± 0.054
4.378ValSer: 4.378 ± 0.052
5.805ValThr: 5.805 ± 0.051
8.089ValVal: 8.089 ± 0.062
1.197ValTrp: 1.197 ± 0.024
1.646ValTyr: 1.646 ± 0.026
0.0ValXaa: 0.0 ± 0.0
Trp
1.676TrpAla: 1.676 ± 0.028
0.137TrpCys: 0.137 ± 0.007
0.883TrpAsp: 0.883 ± 0.018
0.753TrpGlu: 0.753 ± 0.018
0.529TrpPhe: 0.529 ± 0.014
1.103TrpGly: 1.103 ± 0.02
0.375TrpHis: 0.375 ± 0.01
0.592TrpIle: 0.592 ± 0.016
0.388TrpLys: 0.388 ± 0.014
1.795TrpLeu: 1.795 ± 0.028
0.29TrpMet: 0.29 ± 0.01
0.472TrpAsn: 0.472 ± 0.013
0.803TrpPro: 0.803 ± 0.017
0.641TrpGln: 0.641 ± 0.015
1.38TrpArg: 1.38 ± 0.024
1.001TrpSer: 1.001 ± 0.02
1.118TrpThr: 1.118 ± 0.021
0.979TrpVal: 0.979 ± 0.017
0.355TrpTrp: 0.355 ± 0.011
0.392TrpTyr: 0.392 ± 0.011
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.822TyrAla: 2.822 ± 0.031
0.172TyrCys: 0.172 ± 0.009
1.622TyrAsp: 1.622 ± 0.026
1.256TyrGlu: 1.256 ± 0.023
0.68TyrPhe: 0.68 ± 0.013
2.41TyrGly: 2.41 ± 0.031
0.408TyrHis: 0.408 ± 0.011
0.496TyrIle: 0.496 ± 0.017
0.417TyrLys: 0.417 ± 0.013
2.125TyrLeu: 2.125 ± 0.03
0.261TyrMet: 0.261 ± 0.01
0.448TyrAsn: 0.448 ± 0.014
1.055TyrPro: 1.055 ± 0.016
0.624TyrGln: 0.624 ± 0.016
1.852TyrArg: 1.852 ± 0.027
0.977TyrSer: 0.977 ± 0.019
1.257TyrThr: 1.257 ± 0.021
1.763TyrVal: 1.763 ± 0.027
0.385TyrTrp: 0.385 ± 0.013
0.491TyrTyr: 0.491 ± 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 8567 proteins (2939490 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