Amino acid dipepetide frequency for Bacteroides sp. OM05-12

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
4.746AlaAla: 4.746 ± 0.085
0.883AlaCys: 0.883 ± 0.031
3.962AlaAsp: 3.962 ± 0.057
4.375AlaGlu: 4.375 ± 0.063
3.163AlaPhe: 3.163 ± 0.057
4.834AlaGly: 4.834 ± 0.076
1.03AlaHis: 1.03 ± 0.027
4.905AlaIle: 4.905 ± 0.068
4.212AlaLys: 4.212 ± 0.075
6.051AlaLeu: 6.051 ± 0.073
1.805AlaMet: 1.805 ± 0.04
3.256AlaAsn: 3.256 ± 0.059
2.081AlaPro: 2.081 ± 0.047
2.519AlaGln: 2.519 ± 0.048
2.575AlaArg: 2.575 ± 0.053
4.003AlaSer: 4.003 ± 0.053
3.764AlaThr: 3.764 ± 0.071
4.45AlaVal: 4.45 ± 0.068
0.752AlaTrp: 0.752 ± 0.025
2.924AlaTyr: 2.924 ± 0.044
0.0AlaXaa: 0.0 ± 0.0
Cys
0.701CysAla: 0.701 ± 0.023
0.211CysCys: 0.211 ± 0.014
0.635CysAsp: 0.635 ± 0.022
0.663CysGlu: 0.663 ± 0.026
0.648CysPhe: 0.648 ± 0.024
0.923CysGly: 0.923 ± 0.031
0.27CysHis: 0.27 ± 0.014
0.943CysIle: 0.943 ± 0.03
0.745CysLys: 0.745 ± 0.022
1.08CysLeu: 1.08 ± 0.034
0.322CysMet: 0.322 ± 0.016
0.575CysAsn: 0.575 ± 0.02
0.522CysPro: 0.522 ± 0.02
0.305CysGln: 0.305 ± 0.014
0.562CysArg: 0.562 ± 0.02
0.818CysSer: 0.818 ± 0.031
0.701CysThr: 0.701 ± 0.027
0.663CysVal: 0.663 ± 0.025
0.153CysTrp: 0.153 ± 0.011
0.585CysTyr: 0.585 ± 0.023
0.0CysXaa: 0.0 ± 0.0
Asp
3.808AspAla: 3.808 ± 0.056
0.632AspCys: 0.632 ± 0.023
2.85AspAsp: 2.85 ± 0.052
3.889AspGlu: 3.889 ± 0.063
3.118AspPhe: 3.118 ± 0.049
4.548AspGly: 4.548 ± 0.095
0.711AspHis: 0.711 ± 0.023
4.416AspIle: 4.416 ± 0.058
4.49AspLys: 4.49 ± 0.064
4.645AspLeu: 4.645 ± 0.069
1.613AspMet: 1.613 ± 0.038
3.336AspAsn: 3.336 ± 0.057
1.641AspPro: 1.641 ± 0.039
1.149AspGln: 1.149 ± 0.03
2.194AspArg: 2.194 ± 0.037
3.356AspSer: 3.356 ± 0.057
2.885AspThr: 2.885 ± 0.053
3.566AspVal: 3.566 ± 0.062
0.851AspTrp: 0.851 ± 0.025
3.08AspTyr: 3.08 ± 0.055
0.0AspXaa: 0.0 ± 0.0
Glu
4.545GluAla: 4.545 ± 0.081
0.604GluCys: 0.604 ± 0.023
3.496GluAsp: 3.496 ± 0.058
5.151GluGlu: 5.151 ± 0.091
2.531GluPhe: 2.531 ± 0.044
4.002GluGly: 4.002 ± 0.06
1.181GluHis: 1.181 ± 0.031
4.958GluIle: 4.958 ± 0.066
5.436GluLys: 5.436 ± 0.072
6.25GluLeu: 6.25 ± 0.077
1.955GluMet: 1.955 ± 0.041
3.918GluAsn: 3.918 ± 0.06
1.682GluPro: 1.682 ± 0.033
2.685GluGln: 2.685 ± 0.045
2.942GluArg: 2.942 ± 0.061
3.482GluSer: 3.482 ± 0.057
3.492GluThr: 3.492 ± 0.055
4.178GluVal: 4.178 ± 0.061
0.856GluTrp: 0.856 ± 0.026
3.028GluTyr: 3.028 ± 0.052
0.0GluXaa: 0.0 ± 0.0
Phe
2.903PheAla: 2.903 ± 0.044
0.616PheCys: 0.616 ± 0.021
2.881PheAsp: 2.881 ± 0.052
2.474PheGlu: 2.474 ± 0.046
2.21PhePhe: 2.21 ± 0.049
3.037PheGly: 3.037 ± 0.06
0.833PheHis: 0.833 ± 0.025
3.607PheIle: 3.607 ± 0.066
2.641PheLys: 2.641 ± 0.047
3.92PheLeu: 3.92 ± 0.072
1.217PheMet: 1.217 ± 0.035
2.622PheAsn: 2.622 ± 0.047
1.666PhePro: 1.666 ± 0.039
1.252PheGln: 1.252 ± 0.032
2.042PheArg: 2.042 ± 0.042
3.572PheSer: 3.572 ± 0.06
2.925PheThr: 2.925 ± 0.052
2.804PheVal: 2.804 ± 0.048
0.513PheTrp: 0.513 ± 0.022
2.185PheTyr: 2.185 ± 0.044
0.0PheXaa: 0.0 ± 0.0
Gly
4.168GlyAla: 4.168 ± 0.07
0.884GlyCys: 0.884 ± 0.03
3.621GlyAsp: 3.621 ± 0.058
4.351GlyGlu: 4.351 ± 0.065
3.096GlyPhe: 3.096 ± 0.057
4.585GlyGly: 4.585 ± 0.076
1.085GlyHis: 1.085 ± 0.031
5.601GlyIle: 5.601 ± 0.083
5.435GlyLys: 5.435 ± 0.072
5.447GlyLeu: 5.447 ± 0.087
2.046GlyMet: 2.046 ± 0.043
3.942GlyAsn: 3.942 ± 0.062
1.143GlyPro: 1.143 ± 0.032
1.93GlyGln: 1.93 ± 0.041
2.616GlyArg: 2.616 ± 0.042
3.942GlySer: 3.942 ± 0.058
4.362GlyThr: 4.362 ± 0.075
4.544GlyVal: 4.544 ± 0.071
0.964GlyTrp: 0.964 ± 0.028
3.301GlyTyr: 3.301 ± 0.06
0.0GlyXaa: 0.0 ± 0.0
His
0.992HisAla: 0.992 ± 0.03
0.284HisCys: 0.284 ± 0.017
0.848HisAsp: 0.848 ± 0.027
0.932HisGlu: 0.932 ± 0.027
0.945HisPhe: 0.945 ± 0.031
1.033HisGly: 1.033 ± 0.028
0.421HisHis: 0.421 ± 0.018
1.384HisIle: 1.384 ± 0.034
1.021HisLys: 1.021 ± 0.031
1.649HisLeu: 1.649 ± 0.042
0.328HisMet: 0.328 ± 0.016
0.895HisAsn: 0.895 ± 0.025
0.92HisPro: 0.92 ± 0.025
0.517HisGln: 0.517 ± 0.02
0.729HisArg: 0.729 ± 0.028
0.98HisSer: 0.98 ± 0.03
0.99HisThr: 0.99 ± 0.028
0.927HisVal: 0.927 ± 0.031
0.229HisTrp: 0.229 ± 0.013
0.854HisTyr: 0.854 ± 0.028
0.0HisXaa: 0.0 ± 0.0
Ile
5.281IleAla: 5.281 ± 0.077
1.012IleCys: 1.012 ± 0.033
4.516IleAsp: 4.516 ± 0.058
4.759IleGlu: 4.759 ± 0.068
3.023IlePhe: 3.023 ± 0.055
4.999IleGly: 4.999 ± 0.076
1.323IleHis: 1.323 ± 0.032
5.432IleIle: 5.432 ± 0.087
4.793IleLys: 4.793 ± 0.075
6.403IleLeu: 6.403 ± 0.092
1.632IleMet: 1.632 ± 0.037
4.237IleAsn: 4.237 ± 0.064
3.455IlePro: 3.455 ± 0.058
2.349IleGln: 2.349 ± 0.049
3.275IleArg: 3.275 ± 0.057
5.345IleSer: 5.345 ± 0.068
4.606IleThr: 4.606 ± 0.073
4.512IleVal: 4.512 ± 0.067
0.776IleTrp: 0.776 ± 0.026
3.356IleTyr: 3.356 ± 0.057
0.0IleXaa: 0.0 ± 0.0
Lys
4.883LysAla: 4.883 ± 0.076
0.572LysCys: 0.572 ± 0.024
4.463LysAsp: 4.463 ± 0.068
6.259LysGlu: 6.259 ± 0.081
2.235LysPhe: 2.235 ± 0.045
4.75LysGly: 4.75 ± 0.063
1.139LysHis: 1.139 ± 0.031
4.861LysIle: 4.861 ± 0.07
5.325LysLys: 5.325 ± 0.09
5.639LysLeu: 5.639 ± 0.063
2.16LysMet: 2.16 ± 0.041
3.895LysAsn: 3.895 ± 0.063
2.094LysPro: 2.094 ± 0.046
2.683LysGln: 2.683 ± 0.052
2.95LysArg: 2.95 ± 0.051
3.794LysSer: 3.794 ± 0.055
3.723LysThr: 3.723 ± 0.057
4.615LysVal: 4.615 ± 0.071
0.737LysTrp: 0.737 ± 0.024
3.206LysTyr: 3.206 ± 0.056
0.0LysXaa: 0.0 ± 0.0
Leu
5.789LeuAla: 5.789 ± 0.08
1.26LeuCys: 1.26 ± 0.034
4.591LeuAsp: 4.591 ± 0.07
5.15LeuGlu: 5.15 ± 0.066
4.45LeuPhe: 4.45 ± 0.079
5.246LeuGly: 5.246 ± 0.082
1.541LeuHis: 1.541 ± 0.032
6.027LeuIle: 6.027 ± 0.088
6.508LeuLys: 6.508 ± 0.076
8.758LeuLeu: 8.758 ± 0.121
2.286LeuMet: 2.286 ± 0.045
4.946LeuAsn: 4.946 ± 0.064
3.87LeuPro: 3.87 ± 0.058
3.115LeuGln: 3.115 ± 0.06
3.666LeuArg: 3.666 ± 0.061
6.888LeuSer: 6.888 ± 0.088
5.322LeuThr: 5.322 ± 0.071
4.797LeuVal: 4.797 ± 0.067
0.917LeuTrp: 0.917 ± 0.03
3.831LeuTyr: 3.831 ± 0.057
0.0LeuXaa: 0.0 ± 0.0
Met
1.914MetAla: 1.914 ± 0.035
0.256MetCys: 0.256 ± 0.015
1.519MetAsp: 1.519 ± 0.037
1.841MetGlu: 1.841 ± 0.034
0.966MetPhe: 0.966 ± 0.026
1.681MetGly: 1.681 ± 0.035
0.413MetHis: 0.413 ± 0.021
1.691MetIle: 1.691 ± 0.036
2.585MetLys: 2.585 ± 0.047
2.308MetLeu: 2.308 ± 0.042
0.756MetMet: 0.756 ± 0.027
1.659MetAsn: 1.659 ± 0.033
1.068MetPro: 1.068 ± 0.029
0.977MetGln: 0.977 ± 0.029
1.194MetArg: 1.194 ± 0.033
1.512MetSer: 1.512 ± 0.034
1.414MetThr: 1.414 ± 0.029
1.45MetVal: 1.45 ± 0.037
0.251MetTrp: 0.251 ± 0.014
0.892MetTyr: 0.892 ± 0.026
0.0MetXaa: 0.0 ± 0.0
Asn
3.55AsnAla: 3.55 ± 0.062
0.66AsnCys: 0.66 ± 0.034
2.911AsnAsp: 2.911 ± 0.049
3.466AsnGlu: 3.466 ± 0.051
2.338AsnPhe: 2.338 ± 0.043
4.218AsnGly: 4.218 ± 0.075
0.902AsnHis: 0.902 ± 0.026
4.56AsnIle: 4.56 ± 0.069
3.823AsnLys: 3.823 ± 0.058
4.763AsnLeu: 4.763 ± 0.068
1.389AsnMet: 1.389 ± 0.031
3.365AsnAsn: 3.365 ± 0.067
2.579AsnPro: 2.579 ± 0.043
1.733AsnGln: 1.733 ± 0.036
2.369AsnArg: 2.369 ± 0.043
3.195AsnSer: 3.195 ± 0.053
3.074AsnThr: 3.074 ± 0.053
3.507AsnVal: 3.507 ± 0.059
0.689AsnTrp: 0.689 ± 0.025
2.596AsnTyr: 2.596 ± 0.047
0.0AsnXaa: 0.0 ± 0.0
Pro
2.59ProAla: 2.59 ± 0.048
0.343ProCys: 0.343 ± 0.018
2.528ProAsp: 2.528 ± 0.046
3.268ProGlu: 3.268 ± 0.057
1.76ProPhe: 1.76 ± 0.035
2.121ProGly: 2.121 ± 0.044
0.629ProHis: 0.629 ± 0.022
2.453ProIle: 2.453 ± 0.053
2.004ProLys: 2.004 ± 0.044
3.0ProLeu: 3.0 ± 0.055
0.856ProMet: 0.856 ± 0.025
1.775ProAsn: 1.775 ± 0.032
0.781ProPro: 0.781 ± 0.028
1.218ProGln: 1.218 ± 0.03
1.053ProArg: 1.053 ± 0.028
2.209ProSer: 2.209 ± 0.043
1.949ProThr: 1.949 ± 0.044
2.844ProVal: 2.844 ± 0.052
0.381ProTrp: 0.381 ± 0.017
1.719ProTyr: 1.719 ± 0.039
0.0ProXaa: 0.0 ± 0.0
Gln
2.155GlnAla: 2.155 ± 0.049
0.306GlnCys: 0.306 ± 0.015
1.651GlnAsp: 1.651 ± 0.035
2.362GlnGlu: 2.362 ± 0.044
1.281GlnPhe: 1.281 ± 0.034
1.959GlnGly: 1.959 ± 0.037
0.528GlnHis: 0.528 ± 0.022
2.433GlnIle: 2.433 ± 0.044
2.381GlnLys: 2.381 ± 0.046
3.102GlnLeu: 3.102 ± 0.056
0.933GlnMet: 0.933 ± 0.028
1.808GlnAsn: 1.808 ± 0.041
1.092GlnPro: 1.092 ± 0.032
1.456GlnGln: 1.456 ± 0.045
1.426GlnArg: 1.426 ± 0.036
1.929GlnSer: 1.929 ± 0.038
1.994GlnThr: 1.994 ± 0.042
2.03GlnVal: 2.03 ± 0.04
0.422GlnTrp: 0.422 ± 0.018
1.516GlnTyr: 1.516 ± 0.037
0.0GlnXaa: 0.0 ± 0.0
Arg
2.4ArgAla: 2.4 ± 0.047
0.439ArgCys: 0.439 ± 0.019
1.945ArgAsp: 1.945 ± 0.042
2.79ArgGlu: 2.79 ± 0.056
2.111ArgPhe: 2.111 ± 0.049
2.111ArgGly: 2.111 ± 0.041
0.792ArgHis: 0.792 ± 0.028
3.489ArgIle: 3.489 ± 0.054
3.199ArgLys: 3.199 ± 0.061
3.987ArgLeu: 3.987 ± 0.06
1.37ArgMet: 1.37 ± 0.034
2.394ArgAsn: 2.394 ± 0.043
1.378ArgPro: 1.378 ± 0.042
1.525ArgGln: 1.525 ± 0.041
1.846ArgArg: 1.846 ± 0.043
2.187ArgSer: 2.187 ± 0.048
2.226ArgThr: 2.226 ± 0.045
2.309ArgVal: 2.309 ± 0.043
0.525ArgTrp: 0.525 ± 0.024
1.975ArgTyr: 1.975 ± 0.039
0.0ArgXaa: 0.0 ± 0.0
Ser
4.147SerAla: 4.147 ± 0.054
0.853SerCys: 0.853 ± 0.029
3.602SerAsp: 3.602 ± 0.052
3.648SerGlu: 3.648 ± 0.051
3.557SerPhe: 3.557 ± 0.056
4.792SerGly: 4.792 ± 0.073
1.045SerHis: 1.045 ± 0.029
5.037SerIle: 5.037 ± 0.075
3.747SerLys: 3.747 ± 0.06
5.986SerLeu: 5.986 ± 0.081
1.497SerMet: 1.497 ± 0.039
3.158SerAsn: 3.158 ± 0.059
2.249SerPro: 2.249 ± 0.041
1.911SerGln: 1.911 ± 0.039
2.432SerArg: 2.432 ± 0.046
4.44SerSer: 4.44 ± 0.084
3.413SerThr: 3.413 ± 0.058
4.399SerVal: 4.399 ± 0.068
0.792SerTrp: 0.792 ± 0.024
3.033SerTyr: 3.033 ± 0.057
0.0SerXaa: 0.0 ± 0.0
Thr
3.884ThrAla: 3.884 ± 0.067
0.522ThrCys: 0.522 ± 0.02
3.735ThrAsp: 3.735 ± 0.063
3.523ThrGlu: 3.523 ± 0.059
2.916ThrPhe: 2.916 ± 0.051
4.374ThrGly: 4.374 ± 0.06
0.939ThrHis: 0.939 ± 0.028
4.548ThrIle: 4.548 ± 0.061
3.185ThrLys: 3.185 ± 0.05
5.356ThrLeu: 5.356 ± 0.076
1.206ThrMet: 1.206 ± 0.03
2.873ThrAsn: 2.873 ± 0.061
2.699ThrPro: 2.699 ± 0.047
1.649ThrGln: 1.649 ± 0.04
1.923ThrArg: 1.923 ± 0.038
3.611ThrSer: 3.611 ± 0.073
3.39ThrThr: 3.39 ± 0.073
4.184ThrVal: 4.184 ± 0.074
0.69ThrTrp: 0.69 ± 0.026
2.704ThrTyr: 2.704 ± 0.057
0.0ThrXaa: 0.0 ± 0.0
Val
4.148ValAla: 4.148 ± 0.062
0.9ValCys: 0.9 ± 0.027
3.608ValAsp: 3.608 ± 0.061
4.04ValGlu: 4.04 ± 0.065
2.842ValPhe: 2.842 ± 0.046
4.011ValGly: 4.011 ± 0.071
0.987ValHis: 0.987 ± 0.029
4.538ValIle: 4.538 ± 0.065
4.447ValLys: 4.447 ± 0.063
5.446ValLeu: 5.446 ± 0.079
1.557ValMet: 1.557 ± 0.04
3.447ValAsn: 3.447 ± 0.052
2.375ValPro: 2.375 ± 0.043
1.786ValGln: 1.786 ± 0.045
2.63ValArg: 2.63 ± 0.044
4.617ValSer: 4.617 ± 0.068
4.055ValThr: 4.055 ± 0.082
4.071ValVal: 4.071 ± 0.074
0.726ValTrp: 0.726 ± 0.025
2.903ValTyr: 2.903 ± 0.055
0.0ValXaa: 0.0 ± 0.0
Trp
0.685TrpAla: 0.685 ± 0.027
0.157TrpCys: 0.157 ± 0.01
0.725TrpAsp: 0.725 ± 0.025
0.781TrpGlu: 0.781 ± 0.026
0.539TrpPhe: 0.539 ± 0.025
0.933TrpGly: 0.933 ± 0.032
0.231TrpHis: 0.231 ± 0.014
0.872TrpIle: 0.872 ± 0.033
0.923TrpLys: 0.923 ± 0.03
1.055TrpLeu: 1.055 ± 0.028
0.383TrpMet: 0.383 ± 0.018
0.825TrpAsn: 0.825 ± 0.028
0.221TrpPro: 0.221 ± 0.017
0.422TrpGln: 0.422 ± 0.018
0.484TrpArg: 0.484 ± 0.018
0.7TrpSer: 0.7 ± 0.026
0.709TrpThr: 0.709 ± 0.024
0.682TrpVal: 0.682 ± 0.027
0.159TrpTrp: 0.159 ± 0.012
0.519TrpTyr: 0.519 ± 0.022
0.0TrpXaa: 0.0 ± 0.0
Tyr
3.001TyrAla: 3.001 ± 0.044
0.634TyrCys: 0.634 ± 0.024
2.695TyrAsp: 2.695 ± 0.05
2.654TyrGlu: 2.654 ± 0.05
2.192TyrPhe: 2.192 ± 0.045
2.905TyrGly: 2.905 ± 0.053
0.876TyrHis: 0.876 ± 0.025
3.326TyrIle: 3.326 ± 0.057
3.083TyrLys: 3.083 ± 0.055
4.115TyrLeu: 4.115 ± 0.065
1.036TyrMet: 1.036 ± 0.029
2.759TyrAsn: 2.759 ± 0.049
1.964TyrPro: 1.964 ± 0.036
1.584TyrGln: 1.584 ± 0.038
2.088TyrArg: 2.088 ± 0.04
3.155TyrSer: 3.155 ± 0.059
2.917TyrThr: 2.917 ± 0.063
2.603TyrVal: 2.603 ± 0.04
0.62TyrTrp: 0.62 ± 0.025
2.383TyrTyr: 2.383 ± 0.054
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 3429 proteins (1318974 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