Amino acid dipepetide frequency for Ancylostoma caninum (Dog hookworm)

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
6.705AlaAla: 6.705 ± 0.045
1.409AlaCys: 1.409 ± 0.018
3.597AlaAsp: 3.597 ± 0.026
4.763AlaGlu: 4.763 ± 0.034
2.865AlaPhe: 2.865 ± 0.019
4.033AlaGly: 4.033 ± 0.032
1.648AlaHis: 1.648 ± 0.016
3.868AlaIle: 3.868 ± 0.023
4.078AlaLys: 4.078 ± 0.029
6.558AlaLeu: 6.558 ± 0.039
1.935AlaMet: 1.935 ± 0.015
2.793AlaAsn: 2.793 ± 0.022
3.857AlaPro: 3.857 ± 0.038
2.782AlaGln: 2.782 ± 0.02
4.072AlaArg: 4.072 ± 0.03
5.39AlaSer: 5.39 ± 0.029
4.096AlaThr: 4.096 ± 0.024
5.371AlaVal: 5.371 ± 0.03
0.705AlaTrp: 0.705 ± 0.01
1.891AlaTyr: 1.891 ± 0.018
0.0AlaXaa: 0.0 ± 0.0
Cys
1.535CysAla: 1.535 ± 0.018
0.654CysCys: 0.654 ± 0.013
1.287CysAsp: 1.287 ± 0.017
1.344CysGlu: 1.344 ± 0.018
0.978CysPhe: 0.978 ± 0.013
1.543CysGly: 1.543 ± 0.018
0.538CysHis: 0.538 ± 0.009
1.148CysIle: 1.148 ± 0.014
1.073CysLys: 1.073 ± 0.015
1.921CysLeu: 1.921 ± 0.018
0.573CysMet: 0.573 ± 0.011
0.909CysAsn: 0.909 ± 0.013
1.285CysPro: 1.285 ± 0.02
0.812CysGln: 0.812 ± 0.013
1.366CysArg: 1.366 ± 0.016
2.02CysSer: 2.02 ± 0.022
1.196CysThr: 1.196 ± 0.018
1.5CysVal: 1.5 ± 0.017
0.248CysTrp: 0.248 ± 0.006
0.673CysTyr: 0.673 ± 0.008
0.0CysXaa: 0.0 ± 0.0
Asp
3.746AspAla: 3.746 ± 0.025
1.148AspCys: 1.148 ± 0.015
3.735AspAsp: 3.735 ± 0.03
4.355AspGlu: 4.355 ± 0.029
2.3AspPhe: 2.3 ± 0.018
3.545AspGly: 3.545 ± 0.029
1.193AspHis: 1.193 ± 0.014
2.824AspIle: 2.824 ± 0.019
2.644AspLys: 2.644 ± 0.021
4.553AspLeu: 4.553 ± 0.026
1.305AspMet: 1.305 ± 0.012
1.909AspAsn: 1.909 ± 0.018
2.537AspPro: 2.537 ± 0.02
1.786AspGln: 1.786 ± 0.017
2.973AspArg: 2.973 ± 0.023
3.875AspSer: 3.875 ± 0.026
2.488AspThr: 2.488 ± 0.019
3.933AspVal: 3.933 ± 0.024
0.676AspTrp: 0.676 ± 0.011
1.74AspTyr: 1.74 ± 0.017
0.0AspXaa: 0.0 ± 0.0
Glu
4.583GluAla: 4.583 ± 0.031
1.267GluCys: 1.267 ± 0.015
3.717GluAsp: 3.717 ± 0.027
5.948GluGlu: 5.948 ± 0.045
2.346GluPhe: 2.346 ± 0.017
3.211GluGly: 3.211 ± 0.023
1.507GluHis: 1.507 ± 0.015
3.324GluIle: 3.324 ± 0.025
4.869GluLys: 4.869 ± 0.032
5.675GluLeu: 5.675 ± 0.036
1.863GluMet: 1.863 ± 0.016
3.016GluAsn: 3.016 ± 0.023
2.576GluPro: 2.576 ± 0.026
2.868GluGln: 2.868 ± 0.022
4.269GluArg: 4.269 ± 0.033
4.169GluSer: 4.169 ± 0.026
3.255GluThr: 3.255 ± 0.025
4.012GluVal: 4.012 ± 0.026
0.812GluTrp: 0.812 ± 0.012
1.845GluTyr: 1.845 ± 0.017
0.0GluXaa: 0.0 ± 0.0
Phe
3.001PheAla: 3.001 ± 0.021
1.101PheCys: 1.101 ± 0.013
2.402PheAsp: 2.402 ± 0.018
2.392PheGlu: 2.392 ± 0.018
2.179PhePhe: 2.179 ± 0.02
2.665PheGly: 2.665 ± 0.021
1.119PheHis: 1.119 ± 0.013
2.318PheIle: 2.318 ± 0.019
1.808PheLys: 1.808 ± 0.015
4.059PheLeu: 4.059 ± 0.027
1.046PheMet: 1.046 ± 0.012
1.66PheAsn: 1.66 ± 0.015
1.966PhePro: 1.966 ± 0.018
1.46PheGln: 1.46 ± 0.015
2.353PheArg: 2.353 ± 0.016
3.387PheSer: 3.387 ± 0.024
2.324PheThr: 2.324 ± 0.019
3.104PheVal: 3.104 ± 0.022
0.531PheTrp: 0.531 ± 0.01
1.499PheTyr: 1.499 ± 0.014
0.0PheXaa: 0.0 ± 0.0
Gly
4.003GlyAla: 4.003 ± 0.031
1.377GlyCys: 1.377 ± 0.018
3.06GlyAsp: 3.06 ± 0.022
3.553GlyGlu: 3.553 ± 0.029
2.5GlyPhe: 2.5 ± 0.022
4.327GlyGly: 4.327 ± 0.051
1.322GlyHis: 1.322 ± 0.013
2.98GlyIle: 2.98 ± 0.022
3.388GlyLys: 3.388 ± 0.026
4.474GlyLeu: 4.474 ± 0.035
1.574GlyMet: 1.574 ± 0.019
2.476GlyAsn: 2.476 ± 0.022
2.713GlyPro: 2.713 ± 0.044
2.146GlyGln: 2.146 ± 0.024
3.483GlyArg: 3.483 ± 0.025
4.497GlySer: 4.497 ± 0.026
3.217GlyThr: 3.217 ± 0.026
3.856GlyVal: 3.856 ± 0.028
0.724GlyTrp: 0.724 ± 0.01
2.014GlyTyr: 2.014 ± 0.023
0.0GlyXaa: 0.0 ± 0.0
His
1.521HisAla: 1.521 ± 0.013
0.614HisCys: 0.614 ± 0.01
1.148HisAsp: 1.148 ± 0.013
1.371HisGlu: 1.371 ± 0.016
1.152HisPhe: 1.152 ± 0.013
1.429HisGly: 1.429 ± 0.015
0.796HisHis: 0.796 ± 0.011
1.295HisIle: 1.295 ± 0.014
1.105HisLys: 1.105 ± 0.014
2.297HisLeu: 2.297 ± 0.023
0.644HisMet: 0.644 ± 0.01
0.953HisAsn: 0.953 ± 0.011
1.332HisPro: 1.332 ± 0.014
0.887HisGln: 0.887 ± 0.012
1.568HisArg: 1.568 ± 0.016
1.895HisSer: 1.895 ± 0.016
1.169HisThr: 1.169 ± 0.011
1.618HisVal: 1.618 ± 0.015
0.309HisTrp: 0.309 ± 0.006
0.883HisTyr: 0.883 ± 0.011
0.0HisXaa: 0.0 ± 0.0
Ile
4.054IleAla: 4.054 ± 0.021
1.283IleCys: 1.283 ± 0.014
2.988IleAsp: 2.988 ± 0.022
3.26IleGlu: 3.26 ± 0.025
2.351IlePhe: 2.351 ± 0.022
3.02IleGly: 3.02 ± 0.021
1.309IleHis: 1.309 ± 0.013
2.764IleIle: 2.764 ± 0.023
2.466IleLys: 2.466 ± 0.021
4.671IleLeu: 4.671 ± 0.029
1.273IleMet: 1.273 ± 0.015
2.018IleAsn: 2.018 ± 0.017
2.793IlePro: 2.793 ± 0.018
1.854IleGln: 1.854 ± 0.016
3.238IleArg: 3.238 ± 0.019
4.17IleSer: 4.17 ± 0.029
2.989IleThr: 2.989 ± 0.023
3.718IleVal: 3.718 ± 0.023
0.606IleTrp: 0.606 ± 0.009
1.687IleTyr: 1.687 ± 0.016
0.0IleXaa: 0.0 ± 0.0
Lys
3.847LysAla: 3.847 ± 0.028
1.242LysCys: 1.242 ± 0.017
2.938LysAsp: 2.938 ± 0.02
4.329LysGlu: 4.329 ± 0.034
2.026LysPhe: 2.026 ± 0.017
2.784LysGly: 2.784 ± 0.023
1.289LysHis: 1.289 ± 0.014
2.942LysIle: 2.942 ± 0.021
4.646LysLys: 4.646 ± 0.035
4.788LysLeu: 4.788 ± 0.027
1.642LysMet: 1.642 ± 0.016
2.398LysAsn: 2.398 ± 0.02
2.677LysPro: 2.677 ± 0.024
2.255LysGln: 2.255 ± 0.02
3.796LysArg: 3.796 ± 0.027
3.715LysSer: 3.715 ± 0.024
3.083LysThr: 3.083 ± 0.024
3.468LysVal: 3.468 ± 0.029
0.703LysTrp: 0.703 ± 0.009
1.791LysTyr: 1.791 ± 0.015
0.0LysXaa: 0.0 ± 0.0
Leu
6.519LeuAla: 6.519 ± 0.033
2.104LeuCys: 2.104 ± 0.018
4.549LeuAsp: 4.549 ± 0.029
5.429LeuGlu: 5.429 ± 0.039
4.11LeuPhe: 4.11 ± 0.029
4.41LeuGly: 4.41 ± 0.029
2.309LeuHis: 2.309 ± 0.019
4.581LeuIle: 4.581 ± 0.028
4.907LeuLys: 4.907 ± 0.027
9.159LeuLeu: 9.159 ± 0.045
2.343LeuMet: 2.343 ± 0.017
3.657LeuAsn: 3.657 ± 0.022
4.814LeuPro: 4.814 ± 0.032
3.607LeuGln: 3.607 ± 0.027
5.822LeuArg: 5.822 ± 0.034
7.12LeuSer: 7.12 ± 0.036
4.798LeuThr: 4.798 ± 0.027
5.691LeuVal: 5.691 ± 0.03
1.022LeuTrp: 1.022 ± 0.014
2.615LeuTyr: 2.615 ± 0.021
0.0LeuXaa: 0.0 ± 0.0
Met
1.955MetAla: 1.955 ± 0.015
0.577MetCys: 0.577 ± 0.009
1.475MetAsp: 1.475 ± 0.014
1.785MetGlu: 1.785 ± 0.017
1.131MetPhe: 1.131 ± 0.013
1.389MetGly: 1.389 ± 0.014
0.627MetHis: 0.627 ± 0.009
1.326MetIle: 1.326 ± 0.013
1.635MetLys: 1.635 ± 0.015
2.398MetLeu: 2.398 ± 0.018
0.837MetMet: 0.837 ± 0.011
1.176MetAsn: 1.176 ± 0.012
1.273MetPro: 1.273 ± 0.014
1.046MetGln: 1.046 ± 0.013
1.693MetArg: 1.693 ± 0.014
2.006MetSer: 2.006 ± 0.017
1.499MetThr: 1.499 ± 0.015
1.686MetVal: 1.686 ± 0.015
0.328MetTrp: 0.328 ± 0.007
0.789MetTyr: 0.789 ± 0.012
0.0MetXaa: 0.0 ± 0.0
Asn
2.923AsnAla: 2.923 ± 0.023
0.956AsnCys: 0.956 ± 0.013
2.178AsnAsp: 2.178 ± 0.019
2.713AsnGlu: 2.713 ± 0.02
1.721AsnPhe: 1.721 ± 0.017
2.916AsnGly: 2.916 ± 0.024
0.89AsnHis: 0.89 ± 0.012
2.355AsnIle: 2.355 ± 0.022
2.097AsnLys: 2.097 ± 0.018
3.423AsnLeu: 3.423 ± 0.019
1.119AsnMet: 1.119 ± 0.012
1.819AsnAsn: 1.819 ± 0.02
2.111AsnPro: 2.111 ± 0.02
1.423AsnGln: 1.423 ± 0.013
2.332AsnArg: 2.332 ± 0.019
2.994AsnSer: 2.994 ± 0.021
2.165AsnThr: 2.165 ± 0.016
2.934AsnVal: 2.934 ± 0.021
0.474AsnTrp: 0.474 ± 0.009
1.414AsnTyr: 1.414 ± 0.015
0.0AsnXaa: 0.0 ± 0.0
Pro
3.839ProAla: 3.839 ± 0.041
0.912ProCys: 0.912 ± 0.013
2.484ProAsp: 2.484 ± 0.021
3.17ProGlu: 3.17 ± 0.027
1.986ProPhe: 1.986 ± 0.017
3.474ProGly: 3.474 ± 0.073
1.175ProHis: 1.175 ± 0.013
2.476ProIle: 2.476 ± 0.018
2.671ProLys: 2.671 ± 0.022
4.254ProLeu: 4.254 ± 0.027
1.19ProMet: 1.19 ± 0.014
1.982ProAsn: 1.982 ± 0.019
4.557ProPro: 4.557 ± 0.064
2.149ProGln: 2.149 ± 0.028
2.845ProArg: 2.845 ± 0.026
4.648ProSer: 4.648 ± 0.039
3.187ProThr: 3.187 ± 0.025
3.464ProVal: 3.464 ± 0.028
0.516ProTrp: 0.516 ± 0.008
1.489ProTyr: 1.489 ± 0.015
0.0ProXaa: 0.0 ± 0.0
Gln
2.599GlnAla: 2.599 ± 0.019
0.949GlnCys: 0.949 ± 0.02
1.526GlnAsp: 1.526 ± 0.013
2.259GlnGlu: 2.259 ± 0.019
1.617GlnPhe: 1.617 ± 0.014
1.849GlnGly: 1.849 ± 0.018
1.002GlnHis: 1.002 ± 0.011
1.998GlnIle: 1.998 ± 0.017
2.353GlnLys: 2.353 ± 0.02
3.961GlnLeu: 3.961 ± 0.033
1.218GlnMet: 1.218 ± 0.013
1.645GlnAsn: 1.645 ± 0.015
2.171GlnPro: 2.171 ± 0.028
2.316GlnGln: 2.316 ± 0.034
2.561GlnArg: 2.561 ± 0.021
2.598GlnSer: 2.598 ± 0.02
1.922GlnThr: 1.922 ± 0.018
2.329GlnVal: 2.329 ± 0.017
0.505GlnTrp: 0.505 ± 0.008
1.239GlnTyr: 1.239 ± 0.014
0.0GlnXaa: 0.0 ± 0.0
Arg
3.982ArgAla: 3.982 ± 0.026
1.34ArgCys: 1.34 ± 0.017
3.068ArgAsp: 3.068 ± 0.024
3.883ArgGlu: 3.883 ± 0.031
2.539ArgPhe: 2.539 ± 0.02
3.165ArgGly: 3.165 ± 0.028
1.571ArgHis: 1.571 ± 0.014
3.315ArgIle: 3.315 ± 0.024
4.039ArgLys: 4.039 ± 0.029
5.644ArgLeu: 5.644 ± 0.034
1.738ArgMet: 1.738 ± 0.013
2.711ArgAsn: 2.711 ± 0.02
2.921ArgPro: 2.921 ± 0.029
2.449ArgGln: 2.449 ± 0.02
5.149ArgArg: 5.149 ± 0.042
4.692ArgSer: 4.692 ± 0.035
3.265ArgThr: 3.265 ± 0.02
3.599ArgVal: 3.599 ± 0.022
0.726ArgTrp: 0.726 ± 0.01
1.841ArgTyr: 1.841 ± 0.014
0.0ArgXaa: 0.0 ± 0.0
Ser
5.569SerAla: 5.569 ± 0.032
1.703SerCys: 1.703 ± 0.018
4.094SerAsp: 4.094 ± 0.029
4.577SerGlu: 4.577 ± 0.027
3.345SerPhe: 3.345 ± 0.024
4.587SerGly: 4.587 ± 0.03
1.757SerHis: 1.757 ± 0.015
3.965SerIle: 3.965 ± 0.025
3.9SerLys: 3.9 ± 0.026
6.894SerLeu: 6.894 ± 0.038
1.972SerMet: 1.972 ± 0.019
3.001SerAsn: 3.001 ± 0.021
4.163SerPro: 4.163 ± 0.039
2.793SerGln: 2.793 ± 0.024
4.656SerArg: 4.656 ± 0.031
7.974SerSer: 7.974 ± 0.064
5.044SerThr: 5.044 ± 0.04
5.021SerVal: 5.021 ± 0.028
0.859SerTrp: 0.859 ± 0.011
2.201SerTyr: 2.201 ± 0.02
0.0SerXaa: 0.0 ± 0.0
Thr
4.301ThrAla: 4.301 ± 0.026
1.276ThrCys: 1.276 ± 0.018
2.704ThrAsp: 2.704 ± 0.021
3.16ThrGlu: 3.16 ± 0.021
2.294ThrPhe: 2.294 ± 0.017
3.134ThrGly: 3.134 ± 0.024
1.19ThrHis: 1.19 ± 0.013
3.094ThrIle: 3.094 ± 0.021
2.838ThrLys: 2.838 ± 0.022
4.838ThrLeu: 4.838 ± 0.029
1.417ThrMet: 1.417 ± 0.015
2.202ThrAsn: 2.202 ± 0.017
3.336ThrPro: 3.336 ± 0.027
1.886ThrGln: 1.886 ± 0.017
2.897ThrArg: 2.897 ± 0.022
4.803ThrSer: 4.803 ± 0.035
4.177ThrThr: 4.177 ± 0.044
4.143ThrVal: 4.143 ± 0.028
0.622ThrTrp: 0.622 ± 0.01
1.591ThrTyr: 1.591 ± 0.017
0.0ThrXaa: 0.0 ± 0.0
Val
4.989ValAla: 4.989 ± 0.026
1.634ValCys: 1.634 ± 0.018
3.881ValAsp: 3.881 ± 0.026
4.341ValGlu: 4.341 ± 0.029
2.986ValPhe: 2.986 ± 0.021
3.543ValGly: 3.543 ± 0.027
1.66ValHis: 1.66 ± 0.015
3.656ValIle: 3.656 ± 0.025
3.525ValLys: 3.525 ± 0.023
6.174ValLeu: 6.174 ± 0.032
1.712ValMet: 1.712 ± 0.016
2.72ValAsn: 2.72 ± 0.02
3.498ValPro: 3.498 ± 0.027
2.512ValGln: 2.512 ± 0.017
3.851ValArg: 3.851 ± 0.024
4.93ValSer: 4.93 ± 0.026
3.756ValThr: 3.756 ± 0.028
5.191ValVal: 5.191 ± 0.03
0.73ValTrp: 0.73 ± 0.011
1.992ValTyr: 1.992 ± 0.015
0.0ValXaa: 0.0 ± 0.0
Trp
0.727TrpAla: 0.727 ± 0.011
0.244TrpCys: 0.244 ± 0.006
0.597TrpAsp: 0.597 ± 0.009
0.648TrpGlu: 0.648 ± 0.01
0.506TrpPhe: 0.506 ± 0.008
0.558TrpGly: 0.558 ± 0.008
0.28TrpHis: 0.28 ± 0.007
0.713TrpIle: 0.713 ± 0.009
0.776TrpLys: 0.776 ± 0.012
1.105TrpLeu: 1.105 ± 0.014
0.427TrpMet: 0.427 ± 0.008
0.611TrpAsn: 0.611 ± 0.01
0.465TrpPro: 0.465 ± 0.008
0.46TrpGln: 0.46 ± 0.007
0.789TrpArg: 0.789 ± 0.011
0.907TrpSer: 0.907 ± 0.012
0.707TrpThr: 0.707 ± 0.01
0.621TrpVal: 0.621 ± 0.009
0.229TrpTrp: 0.229 ± 0.006
0.374TrpTyr: 0.374 ± 0.008
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.017TyrAla: 2.017 ± 0.016
0.813TyrCys: 0.813 ± 0.012
1.834TyrAsp: 1.834 ± 0.018
1.85TyrGlu: 1.85 ± 0.016
1.442TyrPhe: 1.442 ± 0.014
2.102TyrGly: 2.102 ± 0.02
0.807TyrHis: 0.807 ± 0.012
1.57TyrIle: 1.57 ± 0.015
1.542TyrLys: 1.542 ± 0.016
2.719TyrLeu: 2.719 ± 0.021
0.802TyrMet: 0.802 ± 0.01
1.304TyrAsn: 1.304 ± 0.016
1.425TyrPro: 1.425 ± 0.015
1.128TyrGln: 1.128 ± 0.013
1.925TyrArg: 1.925 ± 0.014
2.285TyrSer: 2.285 ± 0.017
1.564TyrThr: 1.564 ± 0.015
2.02TyrVal: 2.02 ± 0.016
0.419TyrTrp: 0.419 ± 0.007
1.219TyrTyr: 1.219 ± 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 29973 proteins (7766988 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