Amino acid dipepetide frequency for Bacteroides thetaiotaomicron (strain ATCC 29148 / DSM 2079 / NCTC 10582 / E50 / VPI-5482)

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
5.374AlaAla: 5.374 ± 0.071
0.953AlaCys: 0.953 ± 0.023
4.175AlaAsp: 4.175 ± 0.052
4.541AlaGlu: 4.541 ± 0.063
3.053AlaPhe: 3.053 ± 0.042
4.938AlaGly: 4.938 ± 0.058
1.17AlaHis: 1.17 ± 0.024
4.577AlaIle: 4.577 ± 0.052
3.964AlaLys: 3.964 ± 0.065
6.288AlaLeu: 6.288 ± 0.06
1.867AlaMet: 1.867 ± 0.034
3.284AlaAsn: 3.284 ± 0.042
2.241AlaPro: 2.241 ± 0.041
2.539AlaGln: 2.539 ± 0.043
2.921AlaArg: 2.921 ± 0.042
4.319AlaSer: 4.319 ± 0.058
3.901AlaThr: 3.901 ± 0.058
4.481AlaVal: 4.481 ± 0.053
0.822AlaTrp: 0.822 ± 0.026
3.013AlaTyr: 3.013 ± 0.048
0.0AlaXaa: 0.0 ± 0.0
Cys
0.73CysAla: 0.73 ± 0.021
0.234CysCys: 0.234 ± 0.012
0.653CysAsp: 0.653 ± 0.02
0.623CysGlu: 0.623 ± 0.019
0.64CysPhe: 0.64 ± 0.019
0.953CysGly: 0.953 ± 0.024
0.269CysHis: 0.269 ± 0.014
0.972CysIle: 0.972 ± 0.026
0.69CysLys: 0.69 ± 0.019
1.128CysLeu: 1.128 ± 0.026
0.326CysMet: 0.326 ± 0.012
0.572CysAsn: 0.572 ± 0.02
0.495CysPro: 0.495 ± 0.018
0.363CysGln: 0.363 ± 0.015
0.622CysArg: 0.622 ± 0.02
0.821CysSer: 0.821 ± 0.023
0.669CysThr: 0.669 ± 0.02
0.68CysVal: 0.68 ± 0.021
0.167CysTrp: 0.167 ± 0.012
0.595CysTyr: 0.595 ± 0.018
0.0CysXaa: 0.0 ± 0.0
Asp
3.81AspAla: 3.81 ± 0.049
0.616AspCys: 0.616 ± 0.021
2.778AspAsp: 2.778 ± 0.047
3.857AspGlu: 3.857 ± 0.045
2.926AspPhe: 2.926 ± 0.039
4.376AspGly: 4.376 ± 0.06
0.846AspHis: 0.846 ± 0.021
4.085AspIle: 4.085 ± 0.047
4.114AspLys: 4.114 ± 0.045
4.53AspLeu: 4.53 ± 0.055
1.594AspMet: 1.594 ± 0.028
2.921AspAsn: 2.921 ± 0.039
1.995AspPro: 1.995 ± 0.034
1.435AspGln: 1.435 ± 0.027
2.451AspArg: 2.451 ± 0.038
3.077AspSer: 3.077 ± 0.041
2.752AspThr: 2.752 ± 0.042
3.375AspVal: 3.375 ± 0.047
0.927AspTrp: 0.927 ± 0.024
2.935AspTyr: 2.935 ± 0.044
0.0AspXaa: 0.0 ± 0.0
Glu
4.702GluAla: 4.702 ± 0.065
0.614GluCys: 0.614 ± 0.018
3.253GluAsp: 3.253 ± 0.046
5.022GluGlu: 5.022 ± 0.059
2.448GluPhe: 2.448 ± 0.034
4.18GluGly: 4.18 ± 0.055
1.189GluHis: 1.189 ± 0.024
4.501GluIle: 4.501 ± 0.057
5.248GluLys: 5.248 ± 0.054
6.095GluLeu: 6.095 ± 0.055
2.05GluMet: 2.05 ± 0.032
3.607GluAsn: 3.607 ± 0.046
1.779GluPro: 1.779 ± 0.032
2.665GluGln: 2.665 ± 0.045
3.184GluArg: 3.184 ± 0.047
3.23GluSer: 3.23 ± 0.044
3.409GluThr: 3.409 ± 0.044
4.169GluVal: 4.169 ± 0.049
0.917GluTrp: 0.917 ± 0.024
2.898GluTyr: 2.898 ± 0.041
0.0GluXaa: 0.0 ± 0.0
Phe
2.925PheAla: 2.925 ± 0.046
0.686PheCys: 0.686 ± 0.018
2.784PheAsp: 2.784 ± 0.041
2.457PheGlu: 2.457 ± 0.035
2.206PhePhe: 2.206 ± 0.046
3.124PheGly: 3.124 ± 0.049
0.874PheHis: 0.874 ± 0.024
3.273PheIle: 3.273 ± 0.046
2.447PheLys: 2.447 ± 0.037
4.032PheLeu: 4.032 ± 0.053
1.214PheMet: 1.214 ± 0.025
2.437PheAsn: 2.437 ± 0.042
1.749PhePro: 1.749 ± 0.032
1.343PheGln: 1.343 ± 0.029
2.203PheArg: 2.203 ± 0.038
3.521PheSer: 3.521 ± 0.048
2.895PheThr: 2.895 ± 0.041
2.761PheVal: 2.761 ± 0.041
0.636PheTrp: 0.636 ± 0.021
2.134PheTyr: 2.134 ± 0.04
0.0PheXaa: 0.0 ± 0.0
Gly
4.202GlyAla: 4.202 ± 0.055
0.872GlyCys: 0.872 ± 0.022
3.502GlyAsp: 3.502 ± 0.048
4.239GlyGlu: 4.239 ± 0.051
3.162GlyPhe: 3.162 ± 0.039
4.714GlyGly: 4.714 ± 0.07
1.201GlyHis: 1.201 ± 0.023
5.217GlyIle: 5.217 ± 0.06
5.257GlyLys: 5.257 ± 0.063
5.701GlyLeu: 5.701 ± 0.067
2.111GlyMet: 2.111 ± 0.035
3.763GlyAsn: 3.763 ± 0.058
1.315GlyPro: 1.315 ± 0.032
2.108GlyGln: 2.108 ± 0.034
2.855GlyArg: 2.855 ± 0.04
4.025GlySer: 4.025 ± 0.057
4.365GlyThr: 4.365 ± 0.049
4.592GlyVal: 4.592 ± 0.052
1.13GlyTrp: 1.13 ± 0.027
3.466GlyTyr: 3.466 ± 0.046
0.0GlyXaa: 0.0 ± 0.0
His
1.08HisAla: 1.08 ± 0.024
0.279HisCys: 0.279 ± 0.011
0.843HisAsp: 0.843 ± 0.022
1.019HisGlu: 1.019 ± 0.024
0.995HisPhe: 0.995 ± 0.027
1.161HisGly: 1.161 ± 0.026
0.464HisHis: 0.464 ± 0.019
1.424HisIle: 1.424 ± 0.03
0.954HisLys: 0.954 ± 0.023
1.754HisLeu: 1.754 ± 0.031
0.35HisMet: 0.35 ± 0.013
0.89HisAsn: 0.89 ± 0.024
1.084HisPro: 1.084 ± 0.027
0.649HisGln: 0.649 ± 0.021
0.868HisArg: 0.868 ± 0.022
1.153HisSer: 1.153 ± 0.025
1.061HisThr: 1.061 ± 0.026
0.932HisVal: 0.932 ± 0.024
0.283HisTrp: 0.283 ± 0.013
0.901HisTyr: 0.901 ± 0.023
0.0HisXaa: 0.0 ± 0.0
Ile
5.081IleAla: 5.081 ± 0.06
0.979IleCys: 0.979 ± 0.023
4.228IleAsp: 4.228 ± 0.051
4.363IleGlu: 4.363 ± 0.053
2.736IlePhe: 2.736 ± 0.047
4.569IleGly: 4.569 ± 0.061
1.348IleHis: 1.348 ± 0.028
4.568IleIle: 4.568 ± 0.071
4.06IleLys: 4.06 ± 0.05
5.981IleLeu: 5.981 ± 0.075
1.481IleMet: 1.481 ± 0.03
3.568IleAsn: 3.568 ± 0.046
3.159IlePro: 3.159 ± 0.042
2.324IleGln: 2.324 ± 0.038
3.494IleArg: 3.494 ± 0.047
4.81IleSer: 4.81 ± 0.049
4.2IleThr: 4.2 ± 0.051
4.148IleVal: 4.148 ± 0.06
0.792IleTrp: 0.792 ± 0.024
2.996IleTyr: 2.996 ± 0.044
0.0IleXaa: 0.0 ± 0.0
Lys
4.782LysAla: 4.782 ± 0.058
0.539LysCys: 0.539 ± 0.018
4.202LysAsp: 4.202 ± 0.052
5.958LysGlu: 5.958 ± 0.065
2.156LysPhe: 2.156 ± 0.034
4.553LysGly: 4.553 ± 0.049
1.15LysHis: 1.15 ± 0.029
4.179LysIle: 4.179 ± 0.049
5.122LysLys: 5.122 ± 0.053
5.343LysLeu: 5.343 ± 0.052
2.088LysMet: 2.088 ± 0.031
3.609LysAsn: 3.609 ± 0.043
2.09LysPro: 2.09 ± 0.034
2.608LysGln: 2.608 ± 0.036
3.075LysArg: 3.075 ± 0.048
3.492LysSer: 3.492 ± 0.046
3.482LysThr: 3.482 ± 0.049
4.457LysVal: 4.457 ± 0.049
0.847LysTrp: 0.847 ± 0.023
3.067LysTyr: 3.067 ± 0.042
0.0LysXaa: 0.0 ± 0.0
Leu
6.037LeuAla: 6.037 ± 0.069
1.295LeuCys: 1.295 ± 0.026
4.443LeuAsp: 4.443 ± 0.051
4.923LeuGlu: 4.923 ± 0.056
4.62LeuPhe: 4.62 ± 0.06
5.313LeuGly: 5.313 ± 0.068
1.652LeuHis: 1.652 ± 0.031
5.618LeuIle: 5.618 ± 0.071
6.443LeuLys: 6.443 ± 0.06
9.063LeuLeu: 9.063 ± 0.103
2.43LeuMet: 2.43 ± 0.035
4.76LeuAsn: 4.76 ± 0.057
4.184LeuPro: 4.184 ± 0.055
3.339LeuGln: 3.339 ± 0.047
4.084LeuArg: 4.084 ± 0.052
6.881LeuSer: 6.881 ± 0.068
5.249LeuThr: 5.249 ± 0.058
4.877LeuVal: 4.877 ± 0.055
1.101LeuTrp: 1.101 ± 0.027
3.845LeuTyr: 3.845 ± 0.045
0.0LeuXaa: 0.0 ± 0.0
Met
1.934MetAla: 1.934 ± 0.035
0.233MetCys: 0.233 ± 0.012
1.502MetAsp: 1.502 ± 0.03
1.807MetGlu: 1.807 ± 0.033
1.006MetPhe: 1.006 ± 0.027
1.83MetGly: 1.83 ± 0.033
0.433MetHis: 0.433 ± 0.016
1.731MetIle: 1.731 ± 0.033
2.612MetLys: 2.612 ± 0.038
2.345MetLeu: 2.345 ± 0.036
0.794MetMet: 0.794 ± 0.024
1.697MetAsn: 1.697 ± 0.031
1.142MetPro: 1.142 ± 0.027
1.021MetGln: 1.021 ± 0.022
1.264MetArg: 1.264 ± 0.026
1.565MetSer: 1.565 ± 0.029
1.472MetThr: 1.472 ± 0.026
1.522MetVal: 1.522 ± 0.028
0.289MetTrp: 0.289 ± 0.013
0.974MetTyr: 0.974 ± 0.023
0.0MetXaa: 0.0 ± 0.0
Asn
3.506AsnAla: 3.506 ± 0.051
0.529AsnCys: 0.529 ± 0.018
2.725AsnAsp: 2.725 ± 0.043
3.287AsnGlu: 3.287 ± 0.045
2.31AsnPhe: 2.31 ± 0.04
4.091AsnGly: 4.091 ± 0.062
0.979AsnHis: 0.979 ± 0.026
3.854AsnIle: 3.854 ± 0.05
3.321AsnLys: 3.321 ± 0.045
4.487AsnLeu: 4.487 ± 0.047
1.388AsnMet: 1.388 ± 0.03
2.853AsnAsn: 2.853 ± 0.05
2.541AsnPro: 2.541 ± 0.041
1.751AsnGln: 1.751 ± 0.031
2.506AsnArg: 2.506 ± 0.045
3.012AsnSer: 3.012 ± 0.04
2.892AsnThr: 2.892 ± 0.044
3.301AsnVal: 3.301 ± 0.051
0.75AsnTrp: 0.75 ± 0.021
2.503AsnTyr: 2.503 ± 0.043
0.0AsnXaa: 0.0 ± 0.0
Pro
2.808ProAla: 2.808 ± 0.039
0.38ProCys: 0.38 ± 0.014
2.564ProAsp: 2.564 ± 0.037
3.399ProGlu: 3.399 ± 0.046
1.849ProPhe: 1.849 ± 0.036
2.432ProGly: 2.432 ± 0.038
0.678ProHis: 0.678 ± 0.02
2.374ProIle: 2.374 ± 0.038
2.086ProLys: 2.086 ± 0.034
3.292ProLeu: 3.292 ± 0.05
0.945ProMet: 0.945 ± 0.023
1.777ProAsn: 1.777 ± 0.03
0.813ProPro: 0.813 ± 0.024
1.398ProGln: 1.398 ± 0.031
1.308ProArg: 1.308 ± 0.029
2.354ProSer: 2.354 ± 0.033
2.002ProThr: 2.002 ± 0.033
3.086ProVal: 3.086 ± 0.042
0.503ProTrp: 0.503 ± 0.016
1.797ProTyr: 1.797 ± 0.03
0.0ProXaa: 0.0 ± 0.0
Gln
2.439GlnAla: 2.439 ± 0.038
0.32GlnCys: 0.32 ± 0.015
1.585GlnAsp: 1.585 ± 0.029
2.445GlnGlu: 2.445 ± 0.041
1.334GlnPhe: 1.334 ± 0.028
2.123GlnGly: 2.123 ± 0.034
0.606GlnHis: 0.606 ± 0.017
2.4GlnIle: 2.4 ± 0.036
2.546GlnLys: 2.546 ± 0.042
3.353GlnLeu: 3.353 ± 0.047
1.058GlnMet: 1.058 ± 0.026
1.801GlnAsn: 1.801 ± 0.03
1.362GlnPro: 1.362 ± 0.031
1.607GlnGln: 1.607 ± 0.035
1.667GlnArg: 1.667 ± 0.029
2.084GlnSer: 2.084 ± 0.036
2.114GlnThr: 2.114 ± 0.033
2.109GlnVal: 2.109 ± 0.029
0.517GlnTrp: 0.517 ± 0.019
1.572GlnTyr: 1.572 ± 0.03
0.0GlnXaa: 0.0 ± 0.0
Arg
2.662ArgAla: 2.662 ± 0.04
0.468ArgCys: 0.468 ± 0.017
2.104ArgAsp: 2.104 ± 0.028
2.975ArgGlu: 2.975 ± 0.048
2.336ArgPhe: 2.336 ± 0.034
2.443ArgGly: 2.443 ± 0.039
0.867ArgHis: 0.867 ± 0.023
3.544ArgIle: 3.544 ± 0.047
3.369ArgLys: 3.369 ± 0.044
4.371ArgLeu: 4.371 ± 0.047
1.504ArgMet: 1.504 ± 0.03
2.555ArgAsn: 2.555 ± 0.034
1.641ArgPro: 1.641 ± 0.037
1.806ArgGln: 1.806 ± 0.033
2.223ArgArg: 2.223 ± 0.037
2.516ArgSer: 2.516 ± 0.038
2.54ArgThr: 2.54 ± 0.036
2.562ArgVal: 2.562 ± 0.036
0.688ArgTrp: 0.688 ± 0.02
2.285ArgTyr: 2.285 ± 0.035
0.0ArgXaa: 0.0 ± 0.0
Ser
4.183SerAla: 4.183 ± 0.048
0.936SerCys: 0.936 ± 0.025
3.446SerAsp: 3.446 ± 0.043
3.589SerGlu: 3.589 ± 0.048
3.381SerPhe: 3.381 ± 0.052
4.591SerGly: 4.591 ± 0.056
1.147SerHis: 1.147 ± 0.027
4.468SerIle: 4.468 ± 0.052
3.495SerLys: 3.495 ± 0.044
6.102SerLeu: 6.102 ± 0.061
1.514SerMet: 1.514 ± 0.031
2.931SerAsn: 2.931 ± 0.04
2.52SerPro: 2.52 ± 0.034
1.986SerGln: 1.986 ± 0.036
2.657SerArg: 2.657 ± 0.039
4.294SerSer: 4.294 ± 0.062
3.423SerThr: 3.423 ± 0.041
4.269SerVal: 4.269 ± 0.048
0.895SerTrp: 0.895 ± 0.021
3.14SerTyr: 3.14 ± 0.051
0.0SerXaa: 0.0 ± 0.0
Thr
3.92ThrAla: 3.92 ± 0.045
0.607ThrCys: 0.607 ± 0.016
3.545ThrAsp: 3.545 ± 0.044
3.434ThrGlu: 3.434 ± 0.044
2.941ThrPhe: 2.941 ± 0.043
4.497ThrGly: 4.497 ± 0.053
0.977ThrHis: 0.977 ± 0.022
3.905ThrIle: 3.905 ± 0.054
2.991ThrLys: 2.991 ± 0.041
5.402ThrLeu: 5.402 ± 0.064
1.187ThrMet: 1.187 ± 0.029
2.654ThrAsn: 2.654 ± 0.05
2.842ThrPro: 2.842 ± 0.042
1.838ThrGln: 1.838 ± 0.04
2.187ThrArg: 2.187 ± 0.035
3.513ThrSer: 3.513 ± 0.045
3.205ThrThr: 3.205 ± 0.047
4.045ThrVal: 4.045 ± 0.053
0.72ThrTrp: 0.72 ± 0.022
2.685ThrTyr: 2.685 ± 0.048
0.0ThrXaa: 0.0 ± 0.0
Val
4.3ValAla: 4.3 ± 0.052
0.908ValCys: 0.908 ± 0.025
3.621ValAsp: 3.621 ± 0.045
3.874ValGlu: 3.874 ± 0.051
2.747ValPhe: 2.747 ± 0.038
3.86ValGly: 3.86 ± 0.052
1.067ValHis: 1.067 ± 0.025
4.273ValIle: 4.273 ± 0.053
4.179ValLys: 4.179 ± 0.05
5.523ValLeu: 5.523 ± 0.064
1.618ValMet: 1.618 ± 0.026
3.382ValAsn: 3.382 ± 0.045
2.549ValPro: 2.549 ± 0.04
1.934ValGln: 1.934 ± 0.031
2.953ValArg: 2.953 ± 0.041
4.534ValSer: 4.534 ± 0.049
3.89ValThr: 3.89 ± 0.049
4.218ValVal: 4.218 ± 0.061
0.792ValTrp: 0.792 ± 0.024
2.732ValTyr: 2.732 ± 0.041
0.0ValXaa: 0.0 ± 0.0
Trp
0.83TrpAla: 0.83 ± 0.021
0.178TrpCys: 0.178 ± 0.011
0.744TrpAsp: 0.744 ± 0.021
0.884TrpGlu: 0.884 ± 0.023
0.624TrpPhe: 0.624 ± 0.022
1.052TrpGly: 1.052 ± 0.025
0.269TrpHis: 0.269 ± 0.011
0.902TrpIle: 0.902 ± 0.024
1.051TrpLys: 1.051 ± 0.025
1.187TrpLeu: 1.187 ± 0.029
0.498TrpMet: 0.498 ± 0.015
0.893TrpAsn: 0.893 ± 0.026
0.302TrpPro: 0.302 ± 0.012
0.52TrpGln: 0.52 ± 0.016
0.595TrpArg: 0.595 ± 0.021
0.778TrpSer: 0.778 ± 0.025
0.736TrpThr: 0.736 ± 0.023
0.806TrpVal: 0.806 ± 0.028
0.222TrpTrp: 0.222 ± 0.012
0.582TrpTyr: 0.582 ± 0.019
0.0TrpXaa: 0.0 ± 0.0
Tyr
3.114TyrAla: 3.114 ± 0.042
0.577TyrCys: 0.577 ± 0.02
2.704TyrAsp: 2.704 ± 0.04
2.465TyrGlu: 2.465 ± 0.044
2.23TyrPhe: 2.23 ± 0.038
2.997TyrGly: 2.997 ± 0.04
0.959TyrHis: 0.959 ± 0.025
3.021TyrIle: 3.021 ± 0.039
2.851TyrLys: 2.851 ± 0.039
4.178TyrLeu: 4.178 ± 0.049
1.156TyrMet: 1.156 ± 0.026
2.631TyrAsn: 2.631 ± 0.043
2.041TyrPro: 2.041 ± 0.037
1.811TyrGln: 1.811 ± 0.032
2.341TyrArg: 2.341 ± 0.045
2.99TyrSer: 2.99 ± 0.053
2.836TyrThr: 2.836 ± 0.041
2.564TyrVal: 2.564 ± 0.041
0.658TyrTrp: 0.658 ± 0.024
2.44TyrTyr: 2.44 ± 0.05
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 4782 proteins (1864427 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