Amino acid dipepetide frequency for Trichinella spiralis (Trichina worm)

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
5.661AlaAla: 5.661 ± 0.047
1.515AlaCys: 1.515 ± 0.016
3.57AlaAsp: 3.57 ± 0.021
4.482AlaGlu: 4.482 ± 0.032
2.78AlaPhe: 2.78 ± 0.02
3.383AlaGly: 3.383 ± 0.026
1.339AlaHis: 1.339 ± 0.013
3.407AlaIle: 3.407 ± 0.024
3.644AlaLys: 3.644 ± 0.023
6.112AlaLeu: 6.112 ± 0.04
1.616AlaMet: 1.616 ± 0.014
3.008AlaAsn: 3.008 ± 0.019
2.334AlaPro: 2.334 ± 0.024
2.294AlaGln: 2.294 ± 0.019
2.958AlaArg: 2.958 ± 0.023
5.274AlaSer: 5.274 ± 0.032
3.545AlaThr: 3.545 ± 0.026
5.096AlaVal: 5.096 ± 0.029
0.71AlaTrp: 0.71 ± 0.011
1.869AlaTyr: 1.869 ± 0.016
0.001AlaXaa: 0.001 ± 0.0
Cys
1.475CysAla: 1.475 ± 0.015
0.92CysCys: 0.92 ± 0.014
1.358CysAsp: 1.358 ± 0.02
1.437CysGlu: 1.437 ± 0.019
1.333CysPhe: 1.333 ± 0.016
1.43CysGly: 1.43 ± 0.015
0.698CysHis: 0.698 ± 0.01
1.584CysIle: 1.584 ± 0.02
1.459CysLys: 1.459 ± 0.02
2.581CysLeu: 2.581 ± 0.023
0.572CysMet: 0.572 ± 0.008
1.23CysAsn: 1.23 ± 0.015
1.225CysPro: 1.225 ± 0.023
1.133CysGln: 1.133 ± 0.016
1.62CysArg: 1.62 ± 0.016
2.484CysSer: 2.484 ± 0.027
1.375CysThr: 1.375 ± 0.015
1.497CysVal: 1.497 ± 0.016
0.348CysTrp: 0.348 ± 0.008
0.774CysTyr: 0.774 ± 0.01
0.0CysXaa: 0.0 ± 0.0
Asp
3.27AspAla: 3.27 ± 0.019
1.365AspCys: 1.365 ± 0.018
3.922AspAsp: 3.922 ± 0.036
4.189AspGlu: 4.189 ± 0.029
2.371AspPhe: 2.371 ± 0.016
3.12AspGly: 3.12 ± 0.03
1.235AspHis: 1.235 ± 0.013
2.819AspIle: 2.819 ± 0.021
2.547AspLys: 2.547 ± 0.017
4.619AspLeu: 4.619 ± 0.027
1.165AspMet: 1.165 ± 0.012
2.344AspAsn: 2.344 ± 0.018
2.055AspPro: 2.055 ± 0.02
2.021AspGln: 2.021 ± 0.017
2.752AspArg: 2.752 ± 0.02
4.172AspSer: 4.172 ± 0.024
2.176AspThr: 2.176 ± 0.016
3.694AspVal: 3.694 ± 0.021
0.692AspTrp: 0.692 ± 0.009
1.641AspTyr: 1.641 ± 0.015
0.0AspXaa: 0.0 ± 0.0
Glu
3.867GluAla: 3.867 ± 0.035
1.336GluCys: 1.336 ± 0.018
3.193GluAsp: 3.193 ± 0.027
5.446GluGlu: 5.446 ± 0.057
2.443GluPhe: 2.443 ± 0.018
2.281GluGly: 2.281 ± 0.02
1.445GluHis: 1.445 ± 0.014
3.933GluIle: 3.933 ± 0.031
4.985GluLys: 4.985 ± 0.038
5.739GluLeu: 5.739 ± 0.036
1.923GluMet: 1.923 ± 0.015
4.071GluAsn: 4.071 ± 0.028
2.144GluPro: 2.144 ± 0.02
3.015GluGln: 3.015 ± 0.027
3.543GluArg: 3.543 ± 0.028
4.464GluSer: 4.464 ± 0.031
3.291GluThr: 3.291 ± 0.026
3.46GluVal: 3.46 ± 0.025
0.677GluTrp: 0.677 ± 0.009
1.754GluTyr: 1.754 ± 0.015
0.001GluXaa: 0.001 ± 0.0
Phe
2.819PheAla: 2.819 ± 0.02
1.423PheCys: 1.423 ± 0.016
2.595PheAsp: 2.595 ± 0.02
2.674PheGlu: 2.674 ± 0.021
2.273PhePhe: 2.273 ± 0.02
2.613PheGly: 2.613 ± 0.019
1.323PheHis: 1.323 ± 0.014
2.595PheIle: 2.595 ± 0.021
2.229PheLys: 2.229 ± 0.017
4.379PheLeu: 4.379 ± 0.033
0.918PheMet: 0.918 ± 0.01
2.11PheAsn: 2.11 ± 0.018
1.991PhePro: 1.991 ± 0.017
1.921PheGln: 1.921 ± 0.014
2.357PheArg: 2.357 ± 0.017
3.917PheSer: 3.917 ± 0.025
2.434PheThr: 2.434 ± 0.02
3.116PheVal: 3.116 ± 0.02
0.605PheTrp: 0.605 ± 0.009
1.725PheTyr: 1.725 ± 0.017
0.0PheXaa: 0.0 ± 0.0
Gly
2.755GlyAla: 2.755 ± 0.024
1.248GlyCys: 1.248 ± 0.016
2.618GlyAsp: 2.618 ± 0.025
2.882GlyGlu: 2.882 ± 0.025
2.27GlyPhe: 2.27 ± 0.02
3.348GlyGly: 3.348 ± 0.03
1.292GlyHis: 1.292 ± 0.014
2.945GlyIle: 2.945 ± 0.021
3.368GlyLys: 3.368 ± 0.024
4.045GlyLeu: 4.045 ± 0.035
1.201GlyMet: 1.201 ± 0.012
2.554GlyAsn: 2.554 ± 0.017
1.784GlyPro: 1.784 ± 0.029
2.038GlyGln: 2.038 ± 0.017
3.256GlyArg: 3.256 ± 0.026
4.238GlySer: 4.238 ± 0.027
2.605GlyThr: 2.605 ± 0.02
3.056GlyVal: 3.056 ± 0.022
0.636GlyTrp: 0.636 ± 0.009
1.719GlyTyr: 1.719 ± 0.019
0.001GlyXaa: 0.001 ± 0.0
His
1.46HisAla: 1.46 ± 0.013
0.884HisCys: 0.884 ± 0.013
1.028HisAsp: 1.028 ± 0.012
1.267HisGlu: 1.267 ± 0.012
1.419HisPhe: 1.419 ± 0.013
1.329HisGly: 1.329 ± 0.014
0.954HisHis: 0.954 ± 0.015
1.305HisIle: 1.305 ± 0.012
1.009HisLys: 1.009 ± 0.012
2.728HisLeu: 2.728 ± 0.018
0.548HisMet: 0.548 ± 0.007
0.987HisAsn: 0.987 ± 0.011
1.238HisPro: 1.238 ± 0.012
1.097HisGln: 1.097 ± 0.014
1.563HisArg: 1.563 ± 0.015
2.09HisSer: 2.09 ± 0.017
1.106HisThr: 1.106 ± 0.013
1.583HisVal: 1.583 ± 0.013
0.36HisTrp: 0.36 ± 0.007
0.883HisTyr: 0.883 ± 0.009
0.0HisXaa: 0.0 ± 0.0
Ile
3.724IleAla: 3.724 ± 0.024
1.754IleCys: 1.754 ± 0.022
2.973IleAsp: 2.973 ± 0.019
3.268IleGlu: 3.268 ± 0.02
2.875IlePhe: 2.875 ± 0.022
2.88IleGly: 2.88 ± 0.023
1.342IleHis: 1.342 ± 0.012
3.166IleIle: 3.166 ± 0.023
2.85IleLys: 2.85 ± 0.024
5.321IleLeu: 5.321 ± 0.03
1.228IleMet: 1.228 ± 0.012
2.471IleAsn: 2.471 ± 0.019
2.659IlePro: 2.659 ± 0.02
2.179IleGln: 2.179 ± 0.017
3.137IleArg: 3.137 ± 0.022
4.721IleSer: 4.721 ± 0.027
2.833IleThr: 2.833 ± 0.025
3.705IleVal: 3.705 ± 0.021
0.676IleTrp: 0.676 ± 0.011
1.933IleTyr: 1.933 ± 0.018
0.001IleXaa: 0.001 ± 0.0
Lys
3.607LysAla: 3.607 ± 0.024
1.468LysCys: 1.468 ± 0.017
2.643LysAsp: 2.643 ± 0.022
3.961LysGlu: 3.961 ± 0.031
2.586LysPhe: 2.586 ± 0.019
2.308LysGly: 2.308 ± 0.023
1.499LysHis: 1.499 ± 0.014
3.587LysIle: 3.587 ± 0.027
4.612LysLys: 4.612 ± 0.043
6.161LysLeu: 6.161 ± 0.035
1.709LysMet: 1.709 ± 0.015
3.157LysAsn: 3.157 ± 0.02
2.452LysPro: 2.452 ± 0.026
2.85LysGln: 2.85 ± 0.022
3.865LysArg: 3.865 ± 0.028
4.636LysSer: 4.636 ± 0.028
3.056LysThr: 3.056 ± 0.023
3.399LysVal: 3.399 ± 0.022
0.735LysTrp: 0.735 ± 0.01
1.88LysTyr: 1.88 ± 0.016
0.001LysXaa: 0.001 ± 0.0
Leu
6.034LeuAla: 6.034 ± 0.032
2.508LeuCys: 2.508 ± 0.022
4.486LeuAsp: 4.486 ± 0.026
5.68LeuGlu: 5.68 ± 0.045
4.623LeuPhe: 4.623 ± 0.034
3.832LeuGly: 3.832 ± 0.028
2.689LeuHis: 2.689 ± 0.017
5.396LeuIle: 5.396 ± 0.033
6.585LeuLys: 6.585 ± 0.032
10.595LeuLeu: 10.595 ± 0.061
2.242LeuMet: 2.242 ± 0.018
4.938LeuAsn: 4.938 ± 0.027
4.757LeuPro: 4.757 ± 0.027
4.481LeuGln: 4.481 ± 0.034
5.431LeuArg: 5.431 ± 0.03
7.637LeuSer: 7.637 ± 0.037
4.99LeuThr: 4.99 ± 0.023
5.49LeuVal: 5.49 ± 0.029
1.061LeuTrp: 1.061 ± 0.012
2.921LeuTyr: 2.921 ± 0.024
0.001LeuXaa: 0.001 ± 0.0
Met
1.604MetAla: 1.604 ± 0.015
0.494MetCys: 0.494 ± 0.009
1.282MetAsp: 1.282 ± 0.014
1.629MetGlu: 1.629 ± 0.016
1.007MetPhe: 1.007 ± 0.01
0.924MetGly: 0.924 ± 0.011
0.662MetHis: 0.662 ± 0.009
1.314MetIle: 1.314 ± 0.012
1.771MetLys: 1.771 ± 0.016
2.491MetLeu: 2.491 ± 0.021
0.685MetMet: 0.685 ± 0.01
1.363MetAsn: 1.363 ± 0.013
1.162MetPro: 1.162 ± 0.011
1.174MetGln: 1.174 ± 0.013
1.257MetArg: 1.257 ± 0.013
1.712MetSer: 1.712 ± 0.014
1.26MetThr: 1.26 ± 0.012
1.365MetVal: 1.365 ± 0.011
0.239MetTrp: 0.239 ± 0.005
0.672MetTyr: 0.672 ± 0.008
0.0MetXaa: 0.0 ± 0.0
Asn
3.31AsnAla: 3.31 ± 0.019
1.479AsnCys: 1.479 ± 0.015
2.812AsnAsp: 2.812 ± 0.018
3.247AsnGlu: 3.247 ± 0.021
2.521AsnPhe: 2.521 ± 0.02
3.012AsnGly: 3.012 ± 0.025
1.053AsnHis: 1.053 ± 0.011
2.728AsnIle: 2.728 ± 0.02
2.56AsnLys: 2.56 ± 0.019
4.547AsnLeu: 4.547 ± 0.024
1.14AsnMet: 1.14 ± 0.012
2.986AsnAsn: 2.986 ± 0.031
1.936AsnPro: 1.936 ± 0.018
1.812AsnGln: 1.812 ± 0.014
2.677AsnArg: 2.677 ± 0.017
4.319AsnSer: 4.319 ± 0.029
2.26AsnThr: 2.26 ± 0.017
3.447AsnVal: 3.447 ± 0.021
0.619AsnTrp: 0.619 ± 0.009
1.674AsnTyr: 1.674 ± 0.014
0.001AsnXaa: 0.001 ± 0.0
Pro
2.888ProAla: 2.888 ± 0.024
0.926ProCys: 0.926 ± 0.015
2.227ProAsp: 2.227 ± 0.017
2.608ProGlu: 2.608 ± 0.022
2.001ProPhe: 2.001 ± 0.018
2.388ProGly: 2.388 ± 0.06
0.912ProHis: 0.912 ± 0.011
2.186ProIle: 2.186 ± 0.017
2.384ProLys: 2.384 ± 0.021
4.05ProLeu: 4.05 ± 0.024
0.944ProMet: 0.944 ± 0.011
2.101ProAsn: 2.101 ± 0.016
2.978ProPro: 2.978 ± 0.035
1.483ProGln: 1.483 ± 0.014
1.933ProArg: 1.933 ± 0.017
3.784ProSer: 3.784 ± 0.027
2.647ProThr: 2.647 ± 0.022
3.166ProVal: 3.166 ± 0.023
0.472ProTrp: 0.472 ± 0.008
1.383ProTyr: 1.383 ± 0.016
0.0ProXaa: 0.0 ± 0.0
Gln
2.623GlnAla: 2.623 ± 0.02
1.152GlnCys: 1.152 ± 0.016
1.471GlnAsp: 1.471 ± 0.013
2.177GlnGlu: 2.177 ± 0.021
1.93GlnPhe: 1.93 ± 0.016
1.448GlnGly: 1.448 ± 0.014
1.223GlnHis: 1.223 ± 0.014
2.448GlnIle: 2.448 ± 0.02
2.486GlnLys: 2.486 ± 0.018
4.83GlnLeu: 4.83 ± 0.03
1.162GlnMet: 1.162 ± 0.012
2.097GlnAsn: 2.097 ± 0.016
1.868GlnPro: 1.868 ± 0.018
3.542GlnGln: 3.542 ± 0.058
2.688GlnArg: 2.688 ± 0.02
3.292GlnSer: 3.292 ± 0.021
2.101GlnThr: 2.101 ± 0.018
2.121GlnVal: 2.121 ± 0.016
0.595GlnTrp: 0.595 ± 0.008
1.3GlnTyr: 1.3 ± 0.013
0.001GlnXaa: 0.001 ± 0.0
Arg
3.027ArgAla: 3.027 ± 0.022
1.637ArgCys: 1.637 ± 0.018
2.464ArgAsp: 2.464 ± 0.018
3.022ArgGlu: 3.022 ± 0.025
2.579ArgPhe: 2.579 ± 0.018
2.5ArgGly: 2.5 ± 0.025
1.584ArgHis: 1.584 ± 0.016
3.252ArgIle: 3.252 ± 0.023
3.765ArgLys: 3.765 ± 0.031
5.8ArgLeu: 5.8 ± 0.036
1.454ArgMet: 1.454 ± 0.013
2.742ArgAsn: 2.742 ± 0.019
2.341ArgPro: 2.341 ± 0.017
2.627ArgGln: 2.627 ± 0.021
4.745ArgArg: 4.745 ± 0.044
4.53ArgSer: 4.53 ± 0.028
2.778ArgThr: 2.778 ± 0.018
2.959ArgVal: 2.959 ± 0.019
0.808ArgTrp: 0.808 ± 0.011
1.708ArgTyr: 1.708 ± 0.014
0.001ArgXaa: 0.001 ± 0.0
Ser
5.545SerAla: 5.545 ± 0.031
2.126SerCys: 2.126 ± 0.019
4.463SerAsp: 4.463 ± 0.027
4.916SerGlu: 4.916 ± 0.031
3.636SerPhe: 3.636 ± 0.023
4.565SerGly: 4.565 ± 0.025
1.673SerHis: 1.673 ± 0.015
4.211SerIle: 4.211 ± 0.023
4.695SerLys: 4.695 ± 0.028
7.391SerLeu: 7.391 ± 0.033
1.815SerMet: 1.815 ± 0.015
4.187SerAsn: 4.187 ± 0.026
3.597SerPro: 3.597 ± 0.029
2.848SerGln: 2.848 ± 0.022
4.401SerArg: 4.401 ± 0.027
9.608SerSer: 9.608 ± 0.07
5.229SerThr: 5.229 ± 0.032
5.683SerVal: 5.683 ± 0.027
0.949SerTrp: 0.949 ± 0.011
2.209SerTyr: 2.209 ± 0.016
0.001SerXaa: 0.001 ± 0.0
Thr
4.124ThrAla: 4.124 ± 0.026
1.327ThrCys: 1.327 ± 0.017
2.779ThrAsp: 2.779 ± 0.019
3.129ThrGlu: 3.129 ± 0.023
2.41ThrPhe: 2.41 ± 0.017
2.896ThrGly: 2.896 ± 0.024
0.979ThrHis: 0.979 ± 0.013
2.869ThrIle: 2.869 ± 0.02
2.761ThrLys: 2.761 ± 0.022
4.953ThrLeu: 4.953 ± 0.025
1.281ThrMet: 1.281 ± 0.013
2.485ThrAsn: 2.485 ± 0.015
2.364ThrPro: 2.364 ± 0.019
1.509ThrGln: 1.509 ± 0.013
2.26ThrArg: 2.26 ± 0.018
4.522ThrSer: 4.522 ± 0.027
3.839ThrThr: 3.839 ± 0.041
4.489ThrVal: 4.489 ± 0.027
0.558ThrTrp: 0.558 ± 0.008
1.401ThrTyr: 1.401 ± 0.013
0.001ThrXaa: 0.001 ± 0.0
Val
4.278ValAla: 4.278 ± 0.027
1.675ValCys: 1.675 ± 0.018
4.091ValAsp: 4.091 ± 0.025
4.62ValGlu: 4.62 ± 0.032
2.61ValPhe: 2.61 ± 0.018
3.409ValGly: 3.409 ± 0.025
1.783ValHis: 1.783 ± 0.014
3.549ValIle: 3.549 ± 0.024
3.842ValLys: 3.842 ± 0.027
5.752ValLeu: 5.752 ± 0.03
1.416ValMet: 1.416 ± 0.013
3.065ValAsn: 3.065 ± 0.022
2.743ValPro: 2.743 ± 0.02
2.812ValGln: 2.812 ± 0.019
3.361ValArg: 3.361 ± 0.021
4.803ValSer: 4.803 ± 0.028
3.267ValThr: 3.267 ± 0.022
4.681ValVal: 4.681 ± 0.029
0.726ValTrp: 0.726 ± 0.009
1.904ValTyr: 1.904 ± 0.017
0.001ValXaa: 0.001 ± 0.0
Trp
0.62TrpAla: 0.62 ± 0.009
0.279TrpCys: 0.279 ± 0.006
0.541TrpAsp: 0.541 ± 0.009
0.566TrpGlu: 0.566 ± 0.008
0.556TrpPhe: 0.556 ± 0.009
0.414TrpGly: 0.414 ± 0.008
0.332TrpHis: 0.332 ± 0.006
0.815TrpIle: 0.815 ± 0.011
0.958TrpLys: 0.958 ± 0.012
1.295TrpLeu: 1.295 ± 0.013
0.348TrpMet: 0.348 ± 0.007
0.754TrpAsn: 0.754 ± 0.011
0.52TrpPro: 0.52 ± 0.007
0.548TrpGln: 0.548 ± 0.008
0.739TrpArg: 0.739 ± 0.009
1.016TrpSer: 1.016 ± 0.014
0.692TrpThr: 0.692 ± 0.008
0.512TrpVal: 0.512 ± 0.008
0.187TrpTrp: 0.187 ± 0.005
0.406TrpTyr: 0.406 ± 0.008
0.0TrpXaa: 0.0 ± 0.0
Tyr
1.903TyrAla: 1.903 ± 0.016
1.014TyrCys: 1.014 ± 0.014
1.654TyrAsp: 1.654 ± 0.015
1.811TyrGlu: 1.811 ± 0.017
1.796TyrPhe: 1.796 ± 0.017
1.779TyrGly: 1.779 ± 0.016
0.822TyrHis: 0.822 ± 0.01
1.586TyrIle: 1.586 ± 0.015
1.66TyrLys: 1.66 ± 0.016
2.986TyrLeu: 2.986 ± 0.022
0.7TyrMet: 0.7 ± 0.008
1.487TyrAsn: 1.487 ± 0.014
1.312TyrPro: 1.312 ± 0.015
1.171TyrGln: 1.171 ± 0.012
1.781TyrArg: 1.781 ± 0.013
2.529TyrSer: 2.529 ± 0.02
1.452TyrThr: 1.452 ± 0.016
1.87TyrVal: 1.87 ± 0.017
0.441TyrTrp: 0.441 ± 0.009
1.244TyrTyr: 1.244 ± 0.014
0.001TyrXaa: 0.001 ± 0.0
Xaa
0.001XaaAla: 0.001 ± 0.0
0.001XaaCys: 0.001 ± 0.0
0.0XaaAsp: 0.0 ± 0.0
0.001XaaGlu: 0.001 ± 0.0
0.001XaaPhe: 0.001 ± 0.0
0.001XaaGly: 0.001 ± 0.0
0.001XaaHis: 0.001 ± 0.0
0.001XaaIle: 0.001 ± 0.0
0.002XaaLys: 0.002 ± 0.0
0.002XaaLeu: 0.002 ± 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
0.001XaaArg: 0.001 ± 0.0
0.001XaaSer: 0.001 ± 0.0
0.001XaaThr: 0.001 ± 0.0
0.001XaaVal: 0.001 ± 0.0
0.0XaaTrp: 0.0 ± 0.0
0.0XaaTyr: 0.0 ± 0.0
0.008XaaXaa: 0.008 ± 0.003
Statistics based on 18572 proteins (8958104 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