Amino acid dipepetide frequency for Gracilariopsis chorda

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
9.381AlaAla: 9.381 ± 0.076
1.335AlaCys: 1.335 ± 0.021
4.233AlaAsp: 4.233 ± 0.035
5.124AlaGlu: 5.124 ± 0.042
3.359AlaPhe: 3.359 ± 0.029
4.65AlaGly: 4.65 ± 0.042
2.21AlaHis: 2.21 ± 0.026
4.078AlaIle: 4.078 ± 0.033
4.119AlaLys: 4.119 ± 0.035
8.872AlaLeu: 8.872 ± 0.066
2.07AlaMet: 2.07 ± 0.023
2.922AlaAsn: 2.922 ± 0.031
4.529AlaPro: 4.529 ± 0.05
3.313AlaGln: 3.313 ± 0.032
5.589AlaArg: 5.589 ± 0.042
7.184AlaSer: 7.184 ± 0.053
4.864AlaThr: 4.864 ± 0.036
6.508AlaVal: 6.508 ± 0.049
0.839AlaTrp: 0.839 ± 0.016
1.946AlaTyr: 1.946 ± 0.025
0.0AlaXaa: 0.0 ± 0.0
Cys
1.419CysAla: 1.419 ± 0.022
0.304CysCys: 0.304 ± 0.01
0.934CysAsp: 0.934 ± 0.018
0.957CysGlu: 0.957 ± 0.017
0.703CysPhe: 0.703 ± 0.013
1.163CysGly: 1.163 ± 0.017
0.383CysHis: 0.383 ± 0.01
0.814CysIle: 0.814 ± 0.016
0.676CysLys: 0.676 ± 0.017
1.336CysLeu: 1.336 ± 0.02
0.371CysMet: 0.371 ± 0.009
0.592CysAsn: 0.592 ± 0.013
0.773CysPro: 0.773 ± 0.019
0.467CysGln: 0.467 ± 0.012
1.064CysArg: 1.064 ± 0.017
1.338CysSer: 1.338 ± 0.021
0.968CysThr: 0.968 ± 0.018
1.268CysVal: 1.268 ± 0.018
0.177CysTrp: 0.177 ± 0.009
0.416CysTyr: 0.416 ± 0.012
0.0CysXaa: 0.0 ± 0.0
Asp
5.026AspAla: 5.026 ± 0.038
0.765AspCys: 0.765 ± 0.014
3.955AspAsp: 3.955 ± 0.046
4.263AspGlu: 4.263 ± 0.045
2.034AspPhe: 2.034 ± 0.021
4.047AspGly: 4.047 ± 0.039
1.315AspHis: 1.315 ± 0.021
2.932AspIle: 2.932 ± 0.03
2.308AspLys: 2.308 ± 0.025
4.584AspLeu: 4.584 ± 0.033
1.392AspMet: 1.392 ± 0.016
1.898AspAsn: 1.898 ± 0.022
2.647AspPro: 2.647 ± 0.03
1.643AspGln: 1.643 ± 0.02
3.161AspArg: 3.161 ± 0.033
4.076AspSer: 4.076 ± 0.038
2.791AspThr: 2.791 ± 0.027
4.511AspVal: 4.511 ± 0.033
0.627AspTrp: 0.627 ± 0.014
1.343AspTyr: 1.343 ± 0.021
0.0AspXaa: 0.0 ± 0.0
Glu
5.213GluAla: 5.213 ± 0.046
0.95GluCys: 0.95 ± 0.018
3.776GluAsp: 3.776 ± 0.034
5.233GluGlu: 5.233 ± 0.065
1.886GluPhe: 1.886 ± 0.024
3.407GluGly: 3.407 ± 0.036
1.677GluHis: 1.677 ± 0.023
2.679GluIle: 2.679 ± 0.029
3.719GluLys: 3.719 ± 0.039
5.52GluLeu: 5.52 ± 0.043
1.546GluMet: 1.546 ± 0.022
2.662GluAsn: 2.662 ± 0.027
2.429GluPro: 2.429 ± 0.031
2.805GluGln: 2.805 ± 0.031
4.708GluArg: 4.708 ± 0.042
4.433GluSer: 4.433 ± 0.045
3.267GluThr: 3.267 ± 0.033
3.878GluVal: 3.878 ± 0.034
0.741GluTrp: 0.741 ± 0.013
1.565GluTyr: 1.565 ± 0.021
0.0GluXaa: 0.0 ± 0.0
Phe
3.135PheAla: 3.135 ± 0.03
0.717PheCys: 0.717 ± 0.015
2.331PheAsp: 2.331 ± 0.029
2.398PheGlu: 2.398 ± 0.028
1.58PhePhe: 1.58 ± 0.025
2.534PheGly: 2.534 ± 0.03
0.923PheHis: 0.923 ± 0.014
1.711PheIle: 1.711 ± 0.025
1.506PheLys: 1.506 ± 0.021
3.446PheLeu: 3.446 ± 0.036
0.812PheMet: 0.812 ± 0.014
1.309PheAsn: 1.309 ± 0.019
1.757PhePro: 1.757 ± 0.022
1.217PheGln: 1.217 ± 0.02
2.379PheArg: 2.379 ± 0.024
3.145PheSer: 3.145 ± 0.026
1.967PheThr: 1.967 ± 0.024
2.999PheVal: 2.999 ± 0.03
0.46PheTrp: 0.46 ± 0.01
0.985PheTyr: 0.985 ± 0.019
0.0PheXaa: 0.0 ± 0.0
Gly
4.879GlyAla: 4.879 ± 0.046
0.949GlyCys: 0.949 ± 0.017
3.495GlyAsp: 3.495 ± 0.033
3.538GlyGlu: 3.538 ± 0.037
2.411GlyPhe: 2.411 ± 0.029
4.628GlyGly: 4.628 ± 0.06
1.469GlyHis: 1.469 ± 0.022
3.078GlyIle: 3.078 ± 0.029
3.246GlyLys: 3.246 ± 0.033
4.953GlyLeu: 4.953 ± 0.044
1.549GlyMet: 1.549 ± 0.025
2.404GlyAsn: 2.404 ± 0.026
2.203GlyPro: 2.203 ± 0.028
1.845GlyGln: 1.845 ± 0.023
4.16GlyArg: 4.16 ± 0.038
4.948GlySer: 4.948 ± 0.043
3.529GlyThr: 3.529 ± 0.028
4.486GlyVal: 4.486 ± 0.039
0.723GlyTrp: 0.723 ± 0.014
1.629GlyTyr: 1.629 ± 0.024
0.0GlyXaa: 0.0 ± 0.0
His
2.333HisAla: 2.333 ± 0.033
0.479HisCys: 0.479 ± 0.011
1.394HisAsp: 1.394 ± 0.019
1.379HisGlu: 1.379 ± 0.02
1.071HisPhe: 1.071 ± 0.019
1.701HisGly: 1.701 ± 0.019
0.958HisHis: 0.958 ± 0.02
1.329HisIle: 1.329 ± 0.019
0.973HisLys: 0.973 ± 0.016
2.376HisLeu: 2.376 ± 0.025
0.585HisMet: 0.585 ± 0.011
0.995HisAsn: 0.995 ± 0.018
1.736HisPro: 1.736 ± 0.024
0.974HisGln: 0.974 ± 0.019
1.814HisArg: 1.814 ± 0.023
2.256HisSer: 2.256 ± 0.027
1.469HisThr: 1.469 ± 0.02
1.949HisVal: 1.949 ± 0.025
0.268HisTrp: 0.268 ± 0.009
0.615HisTyr: 0.615 ± 0.012
0.0HisXaa: 0.0 ± 0.0
Ile
4.269IleAla: 4.269 ± 0.035
0.848IleCys: 0.848 ± 0.018
2.792IleAsp: 2.792 ± 0.026
2.852IleGlu: 2.852 ± 0.026
1.53IlePhe: 1.53 ± 0.023
2.813IleGly: 2.813 ± 0.029
1.158IleHis: 1.158 ± 0.016
2.072IleIle: 2.072 ± 0.027
1.767IleLys: 1.767 ± 0.021
4.01IleLeu: 4.01 ± 0.039
0.98IleMet: 0.98 ± 0.015
1.508IleAsn: 1.508 ± 0.019
2.723IlePro: 2.723 ± 0.027
1.625IleGln: 1.625 ± 0.021
3.202IleArg: 3.202 ± 0.033
3.976IleSer: 3.976 ± 0.029
2.589IleThr: 2.589 ± 0.023
3.522IleVal: 3.522 ± 0.032
0.478IleTrp: 0.478 ± 0.013
1.008IleTyr: 1.008 ± 0.018
0.0IleXaa: 0.0 ± 0.0
Lys
3.935LysAla: 3.935 ± 0.034
0.781LysCys: 0.781 ± 0.024
2.448LysAsp: 2.448 ± 0.027
3.363LysGlu: 3.363 ± 0.04
1.383LysPhe: 1.383 ± 0.018
2.708LysGly: 2.708 ± 0.024
1.333LysHis: 1.333 ± 0.02
1.912LysIle: 1.912 ± 0.021
3.352LysLys: 3.352 ± 0.048
4.362LysLeu: 4.362 ± 0.036
1.095LysMet: 1.095 ± 0.018
1.859LysAsn: 1.859 ± 0.023
2.541LysPro: 2.541 ± 0.03
2.136LysGln: 2.136 ± 0.026
4.286LysArg: 4.286 ± 0.043
3.658LysSer: 3.658 ± 0.036
2.657LysThr: 2.657 ± 0.03
2.9LysVal: 2.9 ± 0.027
0.576LysTrp: 0.576 ± 0.01
1.289LysTyr: 1.289 ± 0.021
0.0LysXaa: 0.0 ± 0.0
Leu
7.504LeuAla: 7.504 ± 0.055
1.673LeuCys: 1.673 ± 0.024
4.741LeuAsp: 4.741 ± 0.04
5.348LeuGlu: 5.348 ± 0.048
3.654LeuPhe: 3.654 ± 0.039
4.971LeuGly: 4.971 ± 0.044
2.71LeuHis: 2.71 ± 0.031
3.735LeuIle: 3.735 ± 0.035
4.314LeuLys: 4.314 ± 0.037
9.032LeuLeu: 9.032 ± 0.069
1.837LeuMet: 1.837 ± 0.022
3.256LeuAsn: 3.256 ± 0.031
5.266LeuPro: 5.266 ± 0.043
4.057LeuGln: 4.057 ± 0.039
7.278LeuArg: 7.278 ± 0.054
7.991LeuSer: 7.991 ± 0.047
4.613LeuThr: 4.613 ± 0.036
5.828LeuVal: 5.828 ± 0.044
0.987LeuTrp: 0.987 ± 0.016
2.282LeuTyr: 2.282 ± 0.027
0.0LeuXaa: 0.0 ± 0.0
Met
1.978MetAla: 1.978 ± 0.023
0.358MetCys: 0.358 ± 0.008
1.237MetAsp: 1.237 ± 0.018
1.462MetGlu: 1.462 ± 0.016
0.844MetPhe: 0.844 ± 0.015
1.282MetGly: 1.282 ± 0.022
0.649MetHis: 0.649 ± 0.011
0.928MetIle: 0.928 ± 0.015
1.315MetLys: 1.315 ± 0.017
2.151MetLeu: 2.151 ± 0.026
0.577MetMet: 0.577 ± 0.014
0.942MetAsn: 0.942 ± 0.016
1.202MetPro: 1.202 ± 0.021
0.97MetGln: 0.97 ± 0.016
1.615MetArg: 1.615 ± 0.02
1.88MetSer: 1.88 ± 0.021
1.215MetThr: 1.215 ± 0.018
1.361MetVal: 1.361 ± 0.018
0.25MetTrp: 0.25 ± 0.007
0.603MetTyr: 0.603 ± 0.012
0.0MetXaa: 0.0 ± 0.0
Asn
3.564AsnAla: 3.564 ± 0.034
0.583AsnCys: 0.583 ± 0.012
2.159AsnAsp: 2.159 ± 0.024
2.34AsnGlu: 2.34 ± 0.024
1.247AsnPhe: 1.247 ± 0.018
2.815AsnGly: 2.815 ± 0.028
0.903AsnHis: 0.903 ± 0.014
1.869AsnIle: 1.869 ± 0.021
1.58AsnLys: 1.58 ± 0.025
3.131AsnLeu: 3.131 ± 0.031
0.931AsnMet: 0.931 ± 0.016
1.471AsnAsn: 1.471 ± 0.024
2.205AsnPro: 2.205 ± 0.025
1.236AsnGln: 1.236 ± 0.021
2.376AsnArg: 2.376 ± 0.026
2.952AsnSer: 2.952 ± 0.027
2.094AsnThr: 2.094 ± 0.027
2.855AsnVal: 2.855 ± 0.031
0.396AsnTrp: 0.396 ± 0.01
0.878AsnTyr: 0.878 ± 0.017
0.0AsnXaa: 0.0 ± 0.0
Pro
4.218ProAla: 4.218 ± 0.046
0.677ProCys: 0.677 ± 0.018
2.764ProAsp: 2.764 ± 0.029
2.948ProGlu: 2.948 ± 0.036
2.06ProPhe: 2.06 ± 0.028
2.791ProGly: 2.791 ± 0.037
1.582ProHis: 1.582 ± 0.023
2.183ProIle: 2.183 ± 0.021
2.285ProLys: 2.285 ± 0.025
4.652ProLeu: 4.652 ± 0.043
0.961ProMet: 0.961 ± 0.016
2.147ProAsn: 2.147 ± 0.027
4.892ProPro: 4.892 ± 0.08
2.26ProGln: 2.26 ± 0.03
3.455ProArg: 3.455 ± 0.036
5.807ProSer: 5.807 ± 0.056
3.406ProThr: 3.406 ± 0.039
3.493ProVal: 3.493 ± 0.032
0.517ProTrp: 0.517 ± 0.012
1.285ProTyr: 1.285 ± 0.021
0.0ProXaa: 0.0 ± 0.0
Gln
2.949GlnAla: 2.949 ± 0.025
0.571GlnCys: 0.571 ± 0.013
1.697GlnAsp: 1.697 ± 0.019
2.072GlnGlu: 2.072 ± 0.022
1.315GlnPhe: 1.315 ± 0.019
1.834GlnGly: 1.834 ± 0.026
1.208GlnHis: 1.208 ± 0.022
1.726GlnIle: 1.726 ± 0.02
1.974GlnLys: 1.974 ± 0.026
3.851GlnLeu: 3.851 ± 0.036
0.922GlnMet: 0.922 ± 0.016
1.591GlnAsn: 1.591 ± 0.023
2.377GlnPro: 2.377 ± 0.037
2.388GlnGln: 2.388 ± 0.054
3.009GlnArg: 3.009 ± 0.03
3.172GlnSer: 3.172 ± 0.03
2.209GlnThr: 2.209 ± 0.024
2.342GlnVal: 2.342 ± 0.025
0.451GlnTrp: 0.451 ± 0.01
0.94GlnTyr: 0.94 ± 0.016
0.0GlnXaa: 0.0 ± 0.0
Arg
5.952ArgAla: 5.952 ± 0.048
1.082ArgCys: 1.082 ± 0.016
3.574ArgAsp: 3.574 ± 0.032
4.21ArgGlu: 4.21 ± 0.041
2.76ArgPhe: 2.76 ± 0.027
3.892ArgGly: 3.892 ± 0.038
1.831ArgHis: 1.831 ± 0.023
3.442ArgIle: 3.442 ± 0.034
4.127ArgLys: 4.127 ± 0.042
6.335ArgLeu: 6.335 ± 0.042
1.747ArgMet: 1.747 ± 0.017
2.896ArgAsn: 2.896 ± 0.026
3.373ArgPro: 3.373 ± 0.038
2.589ArgGln: 2.589 ± 0.026
6.326ArgArg: 6.326 ± 0.064
5.627ArgSer: 5.627 ± 0.043
3.793ArgThr: 3.793 ± 0.03
4.525ArgVal: 4.525 ± 0.035
0.756ArgTrp: 0.756 ± 0.013
1.833ArgTyr: 1.833 ± 0.022
0.0ArgXaa: 0.0 ± 0.0
Ser
7.417SerAla: 7.417 ± 0.055
1.249SerCys: 1.249 ± 0.02
4.604SerAsp: 4.604 ± 0.04
4.915SerGlu: 4.915 ± 0.045
3.266SerPhe: 3.266 ± 0.032
5.161SerGly: 5.161 ± 0.04
2.132SerHis: 2.132 ± 0.026
3.723SerIle: 3.723 ± 0.031
3.912SerLys: 3.912 ± 0.034
7.345SerLeu: 7.345 ± 0.051
1.833SerMet: 1.833 ± 0.022
3.204SerAsn: 3.204 ± 0.029
4.728SerPro: 4.728 ± 0.053
3.158SerGln: 3.158 ± 0.034
5.518SerArg: 5.518 ± 0.045
8.86SerSer: 8.86 ± 0.082
5.204SerThr: 5.204 ± 0.034
5.684SerVal: 5.684 ± 0.045
0.791SerTrp: 0.791 ± 0.015
1.838SerTyr: 1.838 ± 0.022
0.0SerXaa: 0.0 ± 0.0
Thr
5.218ThrAla: 5.218 ± 0.039
0.899ThrCys: 0.899 ± 0.018
2.943ThrAsp: 2.943 ± 0.023
3.232ThrGlu: 3.232 ± 0.034
2.051ThrPhe: 2.051 ± 0.026
3.404ThrGly: 3.404 ± 0.029
1.379ThrHis: 1.379 ± 0.019
2.641ThrIle: 2.641 ± 0.025
2.502ThrLys: 2.502 ± 0.028
5.025ThrLeu: 5.025 ± 0.038
1.162ThrMet: 1.162 ± 0.015
2.045ThrAsn: 2.045 ± 0.025
3.77ThrPro: 3.77 ± 0.047
1.904ThrGln: 1.904 ± 0.021
3.428ThrArg: 3.428 ± 0.029
4.892ThrSer: 4.892 ± 0.04
3.583ThrThr: 3.583 ± 0.04
4.026ThrVal: 4.026 ± 0.033
0.55ThrTrp: 0.55 ± 0.014
1.275ThrTyr: 1.275 ± 0.021
0.0ThrXaa: 0.0 ± 0.0
Val
5.946ValAla: 5.946 ± 0.044
1.234ValCys: 1.234 ± 0.023
3.993ValAsp: 3.993 ± 0.034
4.24ValGlu: 4.24 ± 0.037
2.726ValPhe: 2.726 ± 0.031
3.999ValGly: 3.999 ± 0.038
1.874ValHis: 1.874 ± 0.024
3.117ValIle: 3.117 ± 0.029
3.118ValLys: 3.118 ± 0.025
6.906ValLeu: 6.906 ± 0.045
1.551ValMet: 1.551 ± 0.019
2.39ValAsn: 2.39 ± 0.028
3.727ValPro: 3.727 ± 0.035
2.81ValGln: 2.81 ± 0.028
4.793ValArg: 4.793 ± 0.032
5.725ValSer: 5.725 ± 0.044
3.778ValThr: 3.778 ± 0.033
5.206ValVal: 5.206 ± 0.048
0.858ValTrp: 0.858 ± 0.015
1.807ValTyr: 1.807 ± 0.024
0.0ValXaa: 0.0 ± 0.0
Trp
0.776TrpAla: 0.776 ± 0.015
0.199TrpCys: 0.199 ± 0.008
0.68TrpAsp: 0.68 ± 0.015
0.604TrpGlu: 0.604 ± 0.013
0.455TrpPhe: 0.455 ± 0.013
0.588TrpGly: 0.588 ± 0.012
0.302TrpHis: 0.302 ± 0.008
0.545TrpIle: 0.545 ± 0.012
0.682TrpLys: 0.682 ± 0.013
1.006TrpLeu: 1.006 ± 0.018
0.321TrpMet: 0.321 ± 0.009
0.529TrpAsn: 0.529 ± 0.014
0.385TrpPro: 0.385 ± 0.01
0.39TrpGln: 0.39 ± 0.01
0.857TrpArg: 0.857 ± 0.015
0.802TrpSer: 0.802 ± 0.013
0.63TrpThr: 0.63 ± 0.015
0.665TrpVal: 0.665 ± 0.013
0.169TrpTrp: 0.169 ± 0.007
0.337TrpTyr: 0.337 ± 0.009
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.01TyrAla: 2.01 ± 0.024
0.47TyrCys: 0.47 ± 0.011
1.566TyrAsp: 1.566 ± 0.022
1.616TyrGlu: 1.616 ± 0.023
0.977TyrPhe: 0.977 ± 0.018
1.734TyrGly: 1.734 ± 0.023
0.66TyrHis: 0.66 ± 0.014
1.208TyrIle: 1.208 ± 0.018
1.101TyrLys: 1.101 ± 0.016
2.186TyrLeu: 2.186 ± 0.027
0.575TyrMet: 0.575 ± 0.013
0.965TyrAsn: 0.965 ± 0.018
1.123TyrPro: 1.123 ± 0.017
0.811TyrGln: 0.811 ± 0.015
1.652TyrArg: 1.652 ± 0.021
1.819TyrSer: 1.819 ± 0.022
1.303TyrThr: 1.303 ± 0.019
1.793TyrVal: 1.793 ± 0.022
0.305TyrTrp: 0.305 ± 0.011
0.768TyrTyr: 0.768 ± 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 10593 proteins (4111427 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