Amino acid dipepetide frequency for Peribacillus cavernae

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
6.541AlaAla: 6.541 ± 0.101
0.65AlaCys: 0.65 ± 0.025
3.678AlaAsp: 3.678 ± 0.053
5.057AlaGlu: 5.057 ± 0.076
3.244AlaPhe: 3.244 ± 0.057
5.908AlaGly: 5.908 ± 0.079
1.323AlaHis: 1.323 ± 0.032
5.941AlaIle: 5.941 ± 0.073
4.836AlaLys: 4.836 ± 0.067
7.207AlaLeu: 7.207 ± 0.085
2.028AlaMet: 2.028 ± 0.043
2.788AlaAsn: 2.788 ± 0.051
2.177AlaPro: 2.177 ± 0.044
2.109AlaGln: 2.109 ± 0.04
2.893AlaArg: 2.893 ± 0.053
4.344AlaSer: 4.344 ± 0.066
3.232AlaThr: 3.232 ± 0.051
5.608AlaVal: 5.608 ± 0.067
0.58AlaTrp: 0.58 ± 0.022
2.235AlaTyr: 2.235 ± 0.038
0.0AlaXaa: 0.0 ± 0.0
Cys
0.456CysAla: 0.456 ± 0.019
0.103CysCys: 0.103 ± 0.01
0.408CysAsp: 0.408 ± 0.021
0.505CysGlu: 0.505 ± 0.02
0.327CysPhe: 0.327 ± 0.016
0.695CysGly: 0.695 ± 0.026
0.219CysHis: 0.219 ± 0.014
0.539CysIle: 0.539 ± 0.021
0.379CysLys: 0.379 ± 0.017
0.685CysLeu: 0.685 ± 0.028
0.188CysMet: 0.188 ± 0.012
0.298CysAsn: 0.298 ± 0.017
0.376CysPro: 0.376 ± 0.021
0.222CysGln: 0.222 ± 0.014
0.327CysArg: 0.327 ± 0.017
0.526CysSer: 0.526 ± 0.022
0.4CysThr: 0.4 ± 0.018
0.425CysVal: 0.425 ± 0.023
0.068CysTrp: 0.068 ± 0.008
0.247CysTyr: 0.247 ± 0.013
0.0CysXaa: 0.0 ± 0.0
Asp
3.261AspAla: 3.261 ± 0.056
0.397AspCys: 0.397 ± 0.019
2.401AspAsp: 2.401 ± 0.051
4.189AspGlu: 4.189 ± 0.064
2.418AspPhe: 2.418 ± 0.05
3.353AspGly: 3.353 ± 0.057
1.14AspHis: 1.14 ± 0.031
4.27AspIle: 4.27 ± 0.061
3.188AspLys: 3.188 ± 0.06
5.033AspLeu: 5.033 ± 0.06
1.314AspMet: 1.314 ± 0.031
1.887AspAsn: 1.887 ± 0.044
2.103AspPro: 2.103 ± 0.049
1.842AspGln: 1.842 ± 0.038
2.365AspArg: 2.365 ± 0.046
2.782AspSer: 2.782 ± 0.049
2.391AspThr: 2.391 ± 0.046
3.706AspVal: 3.706 ± 0.059
0.6AspTrp: 0.6 ± 0.025
2.129AspTyr: 2.129 ± 0.046
0.0AspXaa: 0.0 ± 0.0
Glu
5.515GluAla: 5.515 ± 0.083
0.405GluCys: 0.405 ± 0.018
3.662GluAsp: 3.662 ± 0.058
6.725GluGlu: 6.725 ± 0.088
2.611GluPhe: 2.611 ± 0.053
4.477GluGly: 4.477 ± 0.064
1.482GluHis: 1.482 ± 0.033
5.899GluIle: 5.899 ± 0.082
6.851GluLys: 6.851 ± 0.084
7.038GluLeu: 7.038 ± 0.087
2.368GluMet: 2.368 ± 0.044
3.783GluAsn: 3.783 ± 0.058
2.011GluPro: 2.011 ± 0.041
3.067GluGln: 3.067 ± 0.054
3.518GluArg: 3.518 ± 0.058
3.683GluSer: 3.683 ± 0.057
3.964GluThr: 3.964 ± 0.057
4.888GluVal: 4.888 ± 0.075
0.841GluTrp: 0.841 ± 0.028
2.269GluTyr: 2.269 ± 0.043
0.0GluXaa: 0.0 ± 0.0
Phe
2.996PheAla: 2.996 ± 0.05
0.352PheCys: 0.352 ± 0.018
2.327PheAsp: 2.327 ± 0.051
2.977PheGlu: 2.977 ± 0.053
2.169PhePhe: 2.169 ± 0.047
3.342PheGly: 3.342 ± 0.053
1.006PheHis: 1.006 ± 0.029
3.784PheIle: 3.784 ± 0.064
2.35PheLys: 2.35 ± 0.044
4.354PheLeu: 4.354 ± 0.077
1.113PheMet: 1.113 ± 0.032
1.827PheAsn: 1.827 ± 0.038
1.747PhePro: 1.747 ± 0.039
1.552PheGln: 1.552 ± 0.039
1.593PheArg: 1.593 ± 0.035
3.211PheSer: 3.211 ± 0.056
2.49PheThr: 2.49 ± 0.046
2.913PheVal: 2.913 ± 0.05
0.445PheTrp: 0.445 ± 0.023
1.553PheTyr: 1.553 ± 0.043
0.0PheXaa: 0.0 ± 0.0
Gly
5.134GlyAla: 5.134 ± 0.072
0.698GlyCys: 0.698 ± 0.027
3.287GlyAsp: 3.287 ± 0.059
4.674GlyGlu: 4.674 ± 0.071
3.505GlyPhe: 3.505 ± 0.063
5.233GlyGly: 5.233 ± 0.084
1.478GlyHis: 1.478 ± 0.035
6.416GlyIle: 6.416 ± 0.082
5.518GlyLys: 5.518 ± 0.061
6.801GlyLeu: 6.801 ± 0.086
2.167GlyMet: 2.167 ± 0.042
2.954GlyAsn: 2.954 ± 0.049
1.943GlyPro: 1.943 ± 0.049
2.291GlyGln: 2.291 ± 0.049
2.894GlyArg: 2.894 ± 0.048
4.386GlySer: 4.386 ± 0.071
4.192GlyThr: 4.192 ± 0.066
5.02GlyVal: 5.02 ± 0.066
0.819GlyTrp: 0.819 ± 0.029
2.822GlyTyr: 2.822 ± 0.052
0.0GlyXaa: 0.0 ± 0.0
His
1.411HisAla: 1.411 ± 0.038
0.209HisCys: 0.209 ± 0.014
1.035HisAsp: 1.035 ± 0.029
1.377HisGlu: 1.377 ± 0.032
1.069HisPhe: 1.069 ± 0.029
1.504HisGly: 1.504 ± 0.034
0.658HisHis: 0.658 ± 0.029
1.537HisIle: 1.537 ± 0.031
1.053HisLys: 1.053 ± 0.029
2.042HisLeu: 2.042 ± 0.039
0.539HisMet: 0.539 ± 0.021
0.811HisAsn: 0.811 ± 0.029
1.177HisPro: 1.177 ± 0.035
0.778HisGln: 0.778 ± 0.027
0.906HisArg: 0.906 ± 0.028
1.268HisSer: 1.268 ± 0.031
1.073HisThr: 1.073 ± 0.029
1.393HisVal: 1.393 ± 0.039
0.232HisTrp: 0.232 ± 0.013
0.816HisTyr: 0.816 ± 0.025
0.0HisXaa: 0.0 ± 0.0
Ile
6.073IleAla: 6.073 ± 0.094
0.637IleCys: 0.637 ± 0.023
4.28IleAsp: 4.28 ± 0.061
5.849IleGlu: 5.849 ± 0.08
3.107IlePhe: 3.107 ± 0.055
6.217IleGly: 6.217 ± 0.08
1.716IleHis: 1.716 ± 0.037
6.028IleIle: 6.028 ± 0.083
4.706IleLys: 4.706 ± 0.071
7.071IleLeu: 7.071 ± 0.076
1.762IleMet: 1.762 ± 0.043
3.391IleAsn: 3.391 ± 0.052
3.505IlePro: 3.505 ± 0.048
2.792IleGln: 2.792 ± 0.045
3.185IleArg: 3.185 ± 0.057
5.312IleSer: 5.312 ± 0.075
4.412IleThr: 4.412 ± 0.056
5.435IleVal: 5.435 ± 0.08
0.635IleTrp: 0.635 ± 0.026
2.316IleTyr: 2.316 ± 0.045
0.0IleXaa: 0.0 ± 0.0
Lys
4.951LysAla: 4.951 ± 0.065
0.33LysCys: 0.33 ± 0.018
3.769LysAsp: 3.769 ± 0.053
6.681LysGlu: 6.681 ± 0.079
1.897LysPhe: 1.897 ± 0.039
4.755LysGly: 4.755 ± 0.065
1.306LysHis: 1.306 ± 0.03
4.67LysIle: 4.67 ± 0.063
5.939LysLys: 5.939 ± 0.085
5.848LysLeu: 5.848 ± 0.069
2.268LysMet: 2.268 ± 0.038
3.404LysAsn: 3.404 ± 0.059
2.437LysPro: 2.437 ± 0.049
3.104LysGln: 3.104 ± 0.06
3.299LysArg: 3.299 ± 0.046
3.673LysSer: 3.673 ± 0.056
3.77LysThr: 3.77 ± 0.051
4.791LysVal: 4.791 ± 0.069
0.777LysTrp: 0.777 ± 0.028
2.111LysTyr: 2.111 ± 0.04
0.0LysXaa: 0.0 ± 0.0
Leu
7.452LeuAla: 7.452 ± 0.09
0.664LeuCys: 0.664 ± 0.023
4.794LeuAsp: 4.794 ± 0.069
6.652LeuGlu: 6.652 ± 0.083
4.637LeuPhe: 4.637 ± 0.08
6.69LeuGly: 6.69 ± 0.079
1.986LeuHis: 1.986 ± 0.041
6.916LeuIle: 6.916 ± 0.104
6.633LeuLys: 6.633 ± 0.072
9.933LeuLeu: 9.933 ± 0.138
2.399LeuMet: 2.399 ± 0.051
4.016LeuAsn: 4.016 ± 0.057
4.101LeuPro: 4.101 ± 0.068
3.533LeuGln: 3.533 ± 0.055
3.664LeuArg: 3.664 ± 0.057
6.796LeuSer: 6.796 ± 0.09
5.451LeuThr: 5.451 ± 0.068
6.232LeuVal: 6.232 ± 0.067
0.778LeuTrp: 0.778 ± 0.028
3.01LeuTyr: 3.01 ± 0.055
0.0LeuXaa: 0.0 ± 0.0
Met
2.12MetAla: 2.12 ± 0.04
0.146MetCys: 0.146 ± 0.011
1.535MetAsp: 1.535 ± 0.038
2.1MetGlu: 2.1 ± 0.043
1.047MetPhe: 1.047 ± 0.034
1.884MetGly: 1.884 ± 0.04
0.448MetHis: 0.448 ± 0.021
2.094MetIle: 2.094 ± 0.045
2.464MetLys: 2.464 ± 0.046
2.477MetLeu: 2.477 ± 0.044
0.807MetMet: 0.807 ± 0.025
1.428MetAsn: 1.428 ± 0.036
1.044MetPro: 1.044 ± 0.029
0.878MetGln: 0.878 ± 0.027
1.067MetArg: 1.067 ± 0.031
1.649MetSer: 1.649 ± 0.039
1.537MetThr: 1.537 ± 0.034
1.718MetVal: 1.718 ± 0.034
0.169MetTrp: 0.169 ± 0.012
0.709MetTyr: 0.709 ± 0.023
0.0MetXaa: 0.0 ± 0.0
Asn
2.807AsnAla: 2.807 ± 0.045
0.318AsnCys: 0.318 ± 0.016
2.235AsnAsp: 2.235 ± 0.043
3.382AsnGlu: 3.382 ± 0.055
1.587AsnPhe: 1.587 ± 0.032
3.447AsnGly: 3.447 ± 0.06
1.039AsnHis: 1.039 ± 0.028
3.327AsnIle: 3.327 ± 0.051
2.818AsnLys: 2.818 ± 0.055
3.789AsnLeu: 3.789 ± 0.053
1.189AsnMet: 1.189 ± 0.031
1.909AsnAsn: 1.909 ± 0.041
2.247AsnPro: 2.247 ± 0.042
1.837AsnGln: 1.837 ± 0.039
2.179AsnArg: 2.179 ± 0.039
2.399AsnSer: 2.399 ± 0.049
2.16AsnThr: 2.16 ± 0.045
2.992AsnVal: 2.992 ± 0.045
0.478AsnTrp: 0.478 ± 0.018
1.474AsnTyr: 1.474 ± 0.031
0.0AsnXaa: 0.0 ± 0.0
Pro
2.657ProAla: 2.657 ± 0.052
0.234ProCys: 0.234 ± 0.016
2.237ProAsp: 2.237 ± 0.041
3.235ProGlu: 3.235 ± 0.057
2.068ProPhe: 2.068 ± 0.044
2.827ProGly: 2.827 ± 0.053
0.839ProHis: 0.839 ± 0.023
2.881ProIle: 2.881 ± 0.058
2.202ProLys: 2.202 ± 0.046
3.702ProLeu: 3.702 ± 0.066
0.839ProMet: 0.839 ± 0.026
1.611ProAsn: 1.611 ± 0.034
1.044ProPro: 1.044 ± 0.035
1.168ProGln: 1.168 ± 0.036
1.216ProArg: 1.216 ± 0.033
2.302ProSer: 2.302 ± 0.045
1.856ProThr: 1.856 ± 0.038
2.987ProVal: 2.987 ± 0.052
0.409ProTrp: 0.409 ± 0.023
1.436ProTyr: 1.436 ± 0.038
0.0ProXaa: 0.0 ± 0.0
Gln
2.779GlnAla: 2.779 ± 0.052
0.202GlnCys: 0.202 ± 0.013
1.649GlnAsp: 1.649 ± 0.042
2.808GlnGlu: 2.808 ± 0.053
1.563GlnPhe: 1.563 ± 0.037
2.248GlnGly: 2.248 ± 0.044
0.74GlnHis: 0.74 ± 0.027
2.563GlnIle: 2.563 ± 0.044
2.808GlnLys: 2.808 ± 0.051
3.623GlnLeu: 3.623 ± 0.058
1.098GlnMet: 1.098 ± 0.03
1.59GlnAsn: 1.59 ± 0.033
1.212GlnPro: 1.212 ± 0.037
1.572GlnGln: 1.572 ± 0.048
1.48GlnArg: 1.48 ± 0.035
2.094GlnSer: 2.094 ± 0.038
1.896GlnThr: 1.896 ± 0.044
2.24GlnVal: 2.24 ± 0.042
0.374GlnTrp: 0.374 ± 0.021
1.267GlnTyr: 1.267 ± 0.034
0.0GlnXaa: 0.0 ± 0.0
Arg
2.523ArgAla: 2.523 ± 0.045
0.294ArgCys: 0.294 ± 0.015
2.143ArgAsp: 2.143 ± 0.048
3.405ArgGlu: 3.405 ± 0.063
1.967ArgPhe: 1.967 ± 0.044
2.506ArgGly: 2.506 ± 0.05
0.784ArgHis: 0.784 ± 0.025
3.316ArgIle: 3.316 ± 0.05
3.32ArgLys: 3.32 ± 0.062
4.11ArgLeu: 4.11 ± 0.06
1.3ArgMet: 1.3 ± 0.031
2.074ArgAsn: 2.074 ± 0.044
1.44ArgPro: 1.44 ± 0.036
1.535ArgGln: 1.535 ± 0.039
1.916ArgArg: 1.916 ± 0.048
2.304ArgSer: 2.304 ± 0.043
2.06ArgThr: 2.06 ± 0.042
2.723ArgVal: 2.723 ± 0.051
0.407ArgTrp: 0.407 ± 0.019
1.533ArgTyr: 1.533 ± 0.036
0.0ArgXaa: 0.0 ± 0.0
Ser
4.037SerAla: 4.037 ± 0.07
0.438SerCys: 0.438 ± 0.018
2.899SerAsp: 2.899 ± 0.054
4.134SerGlu: 4.134 ± 0.069
3.212SerPhe: 3.212 ± 0.051
4.793SerGly: 4.793 ± 0.077
1.243SerHis: 1.243 ± 0.034
5.019SerIle: 5.019 ± 0.059
3.909SerLys: 3.909 ± 0.06
6.392SerLeu: 6.392 ± 0.077
1.723SerMet: 1.723 ± 0.031
2.491SerAsn: 2.491 ± 0.048
2.304SerPro: 2.304 ± 0.044
2.037SerGln: 2.037 ± 0.044
2.507SerArg: 2.507 ± 0.047
4.043SerSer: 4.043 ± 0.067
3.034SerThr: 3.034 ± 0.056
4.167SerVal: 4.167 ± 0.057
0.66SerTrp: 0.66 ± 0.024
2.143SerTyr: 2.143 ± 0.044
0.0SerXaa: 0.0 ± 0.0
Thr
4.201ThrAla: 4.201 ± 0.064
0.378ThrCys: 0.378 ± 0.018
2.694ThrAsp: 2.694 ± 0.05
3.584ThrGlu: 3.584 ± 0.057
2.462ThrPhe: 2.462 ± 0.05
4.464ThrGly: 4.464 ± 0.057
1.05ThrHis: 1.05 ± 0.031
4.482ThrIle: 4.482 ± 0.062
3.196ThrLys: 3.196 ± 0.05
5.081ThrLeu: 5.081 ± 0.062
1.341ThrMet: 1.341 ± 0.033
2.253ThrAsn: 2.253 ± 0.045
2.251ThrPro: 2.251 ± 0.051
1.367ThrGln: 1.367 ± 0.036
1.972ThrArg: 1.972 ± 0.041
3.096ThrSer: 3.096 ± 0.057
2.645ThrThr: 2.645 ± 0.053
4.193ThrVal: 4.193 ± 0.066
0.501ThrTrp: 0.501 ± 0.018
1.716ThrTyr: 1.716 ± 0.038
0.0ThrXaa: 0.0 ± 0.0
Val
4.828ValAla: 4.828 ± 0.074
0.562ValCys: 0.562 ± 0.024
3.4ValAsp: 3.4 ± 0.06
4.697ValGlu: 4.697 ± 0.068
3.08ValPhe: 3.08 ± 0.057
4.646ValGly: 4.646 ± 0.066
1.383ValHis: 1.383 ± 0.04
5.695ValIle: 5.695 ± 0.064
4.764ValLys: 4.764 ± 0.065
6.646ValLeu: 6.646 ± 0.078
1.759ValMet: 1.759 ± 0.043
3.116ValAsn: 3.116 ± 0.054
2.884ValPro: 2.884 ± 0.051
2.34ValGln: 2.34 ± 0.044
2.611ValArg: 2.611 ± 0.051
4.675ValSer: 4.675 ± 0.066
4.184ValThr: 4.184 ± 0.066
4.696ValVal: 4.696 ± 0.075
0.618ValTrp: 0.618 ± 0.029
2.249ValTyr: 2.249 ± 0.046
0.0ValXaa: 0.0 ± 0.0
Trp
0.618TrpAla: 0.618 ± 0.024
0.079TrpCys: 0.079 ± 0.009
0.515TrpAsp: 0.515 ± 0.023
0.665TrpGlu: 0.665 ± 0.028
0.485TrpPhe: 0.485 ± 0.022
0.683TrpGly: 0.683 ± 0.025
0.203TrpHis: 0.203 ± 0.014
0.771TrpIle: 0.771 ± 0.029
0.731TrpLys: 0.731 ± 0.026
1.116TrpLeu: 1.116 ± 0.037
0.336TrpMet: 0.336 ± 0.017
0.559TrpAsn: 0.559 ± 0.023
0.271TrpPro: 0.271 ± 0.016
0.308TrpGln: 0.308 ± 0.016
0.425TrpArg: 0.425 ± 0.021
0.563TrpSer: 0.563 ± 0.021
0.469TrpThr: 0.469 ± 0.017
0.624TrpVal: 0.624 ± 0.024
0.144TrpTrp: 0.144 ± 0.011
0.336TrpTyr: 0.336 ± 0.016
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.02TyrAla: 2.02 ± 0.042
0.299TyrCys: 0.299 ± 0.016
1.821TyrAsp: 1.821 ± 0.042
2.364TyrGlu: 2.364 ± 0.047
1.647TyrPhe: 1.647 ± 0.035
2.558TyrGly: 2.558 ± 0.046
0.846TyrHis: 0.846 ± 0.028
2.281TyrIle: 2.281 ± 0.045
2.113TyrLys: 2.113 ± 0.043
3.391TyrLeu: 3.391 ± 0.054
0.783TyrMet: 0.783 ± 0.026
1.426TyrAsn: 1.426 ± 0.034
1.478TyrPro: 1.478 ± 0.033
1.473TyrGln: 1.473 ± 0.033
1.64TyrArg: 1.64 ± 0.042
2.076TyrSer: 2.076 ± 0.038
1.708TyrThr: 1.708 ± 0.037
2.083TyrVal: 2.083 ± 0.042
0.365TyrTrp: 0.365 ± 0.02
1.267TyrTyr: 1.267 ± 0.038
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 4169 proteins (1212771 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