Amino acid dipepetide frequency for Porphyromonas levii

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
4.796AlaAla: 4.796 ± 0.106
0.634AlaCys: 0.634 ± 0.035
3.717AlaAsp: 3.717 ± 0.081
5.191AlaGlu: 5.191 ± 0.108
2.893AlaPhe: 2.893 ± 0.069
4.613AlaGly: 4.613 ± 0.094
1.453AlaHis: 1.453 ± 0.048
5.129AlaIle: 5.129 ± 0.092
4.693AlaLys: 4.693 ± 0.094
8.099AlaLeu: 8.099 ± 0.128
2.057AlaMet: 2.057 ± 0.055
3.059AlaAsn: 3.059 ± 0.078
2.793AlaPro: 2.793 ± 0.07
3.111AlaGln: 3.111 ± 0.065
3.346AlaArg: 3.346 ± 0.086
4.302AlaSer: 4.302 ± 0.084
4.291AlaThr: 4.291 ± 0.081
4.509AlaVal: 4.509 ± 0.092
0.756AlaTrp: 0.756 ± 0.035
2.764AlaTyr: 2.764 ± 0.061
0.0AlaXaa: 0.0 ± 0.0
Cys
0.51CysAla: 0.51 ± 0.029
0.101CysCys: 0.101 ± 0.014
0.485CysAsp: 0.485 ± 0.025
0.509CysGlu: 0.509 ± 0.027
0.39CysPhe: 0.39 ± 0.027
0.766CysGly: 0.766 ± 0.038
0.223CysHis: 0.223 ± 0.018
0.553CysIle: 0.553 ± 0.028
0.419CysLys: 0.419 ± 0.025
0.71CysLeu: 0.71 ± 0.03
0.173CysMet: 0.173 ± 0.017
0.394CysAsn: 0.394 ± 0.027
0.416CysPro: 0.416 ± 0.028
0.297CysGln: 0.297 ± 0.02
0.425CysArg: 0.425 ± 0.026
0.578CysSer: 0.578 ± 0.03
0.482CysThr: 0.482 ± 0.03
0.481CysVal: 0.481 ± 0.032
0.079CysTrp: 0.079 ± 0.011
0.331CysTyr: 0.331 ± 0.02
0.0CysXaa: 0.0 ± 0.0
Asp
3.722AspAla: 3.722 ± 0.081
0.445AspCys: 0.445 ± 0.03
2.413AspAsp: 2.413 ± 0.067
3.733AspGlu: 3.733 ± 0.084
2.633AspPhe: 2.633 ± 0.063
3.797AspGly: 3.797 ± 0.097
1.063AspHis: 1.063 ± 0.04
3.969AspIle: 3.969 ± 0.085
3.746AspLys: 3.746 ± 0.088
5.074AspLeu: 5.074 ± 0.087
1.486AspMet: 1.486 ± 0.048
2.471AspAsn: 2.471 ± 0.062
2.091AspPro: 2.091 ± 0.058
1.638AspGln: 1.638 ± 0.055
2.767AspArg: 2.767 ± 0.066
2.88AspSer: 2.88 ± 0.074
2.727AspThr: 2.727 ± 0.062
3.331AspVal: 3.331 ± 0.08
0.723AspTrp: 0.723 ± 0.033
2.649AspTyr: 2.649 ± 0.061
0.0AspXaa: 0.0 ± 0.0
Glu
5.512GluAla: 5.512 ± 0.106
0.506GluCys: 0.506 ± 0.027
3.337GluAsp: 3.337 ± 0.079
6.354GluGlu: 6.354 ± 0.123
2.024GluPhe: 2.024 ± 0.05
5.147GluGly: 5.147 ± 0.094
1.558GluHis: 1.558 ± 0.046
4.591GluIle: 4.591 ± 0.082
4.341GluLys: 4.341 ± 0.096
7.295GluLeu: 7.295 ± 0.12
1.96GluMet: 1.96 ± 0.061
2.455GluAsn: 2.455 ± 0.063
2.004GluPro: 2.004 ± 0.057
3.346GluGln: 3.346 ± 0.079
4.29GluArg: 4.29 ± 0.086
3.28GluSer: 3.28 ± 0.065
3.093GluThr: 3.093 ± 0.07
5.882GluVal: 5.882 ± 0.114
0.839GluTrp: 0.839 ± 0.033
2.736GluTyr: 2.736 ± 0.075
0.0GluXaa: 0.0 ± 0.0
Phe
2.94PheAla: 2.94 ± 0.068
0.415PheCys: 0.415 ± 0.025
2.515PheAsp: 2.515 ± 0.06
2.471PheGlu: 2.471 ± 0.067
1.833PhePhe: 1.833 ± 0.066
3.161PheGly: 3.161 ± 0.071
0.713PheHis: 0.713 ± 0.032
2.555PheIle: 2.555 ± 0.071
1.98PheLys: 1.98 ± 0.061
3.658PheLeu: 3.658 ± 0.087
1.057PheMet: 1.057 ± 0.041
1.888PheAsn: 1.888 ± 0.057
1.616PhePro: 1.616 ± 0.048
1.181PheGln: 1.181 ± 0.044
1.982PheArg: 1.982 ± 0.061
3.12PheSer: 3.12 ± 0.08
2.615PheThr: 2.615 ± 0.062
3.155PheVal: 3.155 ± 0.064
0.457PheTrp: 0.457 ± 0.029
1.605PheTyr: 1.605 ± 0.053
0.0PheXaa: 0.0 ± 0.0
Gly
5.318GlyAla: 5.318 ± 0.103
0.666GlyCys: 0.666 ± 0.032
3.54GlyAsp: 3.54 ± 0.07
4.574GlyGlu: 4.574 ± 0.087
3.065GlyPhe: 3.065 ± 0.08
5.325GlyGly: 5.325 ± 0.126
1.435GlyHis: 1.435 ± 0.049
5.115GlyIle: 5.115 ± 0.104
5.075GlyLys: 5.075 ± 0.094
6.517GlyLeu: 6.517 ± 0.101
2.061GlyMet: 2.061 ± 0.06
3.04GlyAsn: 3.04 ± 0.072
1.154GlyPro: 1.154 ± 0.047
2.267GlyGln: 2.267 ± 0.055
3.565GlyArg: 3.565 ± 0.069
4.165GlySer: 4.165 ± 0.076
3.952GlyThr: 3.952 ± 0.081
5.538GlyVal: 5.538 ± 0.093
0.837GlyTrp: 0.837 ± 0.039
3.277GlyTyr: 3.277 ± 0.083
0.0GlyXaa: 0.0 ± 0.0
His
1.161HisAla: 1.161 ± 0.041
0.222HisCys: 0.222 ± 0.02
1.009HisAsp: 1.009 ± 0.038
1.175HisGlu: 1.175 ± 0.042
1.113HisPhe: 1.113 ± 0.042
1.341HisGly: 1.341 ± 0.054
0.532HisHis: 0.532 ± 0.031
1.473HisIle: 1.473 ± 0.043
1.114HisLys: 1.114 ± 0.038
2.214HisLeu: 2.214 ± 0.062
0.379HisMet: 0.379 ± 0.027
0.948HisAsn: 0.948 ± 0.035
1.111HisPro: 1.111 ± 0.043
0.764HisGln: 0.764 ± 0.035
1.12HisArg: 1.12 ± 0.041
1.291HisSer: 1.291 ± 0.045
1.206HisThr: 1.206 ± 0.04
1.057HisVal: 1.057 ± 0.041
0.269HisTrp: 0.269 ± 0.021
0.928HisTyr: 0.928 ± 0.04
0.0HisXaa: 0.0 ± 0.0
Ile
5.596IleAla: 5.596 ± 0.108
0.563IleCys: 0.563 ± 0.032
4.215IleAsp: 4.215 ± 0.082
4.855IleGlu: 4.855 ± 0.094
2.368IlePhe: 2.368 ± 0.066
4.89IleGly: 4.89 ± 0.113
1.325IleHis: 1.325 ± 0.04
4.14IleIle: 4.14 ± 0.09
3.818IleLys: 3.818 ± 0.089
5.662IleLeu: 5.662 ± 0.098
1.308IleMet: 1.308 ± 0.044
2.986IleAsn: 2.986 ± 0.082
3.095IlePro: 3.095 ± 0.072
2.304IleGln: 2.304 ± 0.061
3.315IleArg: 3.315 ± 0.071
4.572IleSer: 4.572 ± 0.083
4.112IleThr: 4.112 ± 0.081
4.537IleVal: 4.537 ± 0.088
0.595IleTrp: 0.595 ± 0.032
2.514IleTyr: 2.514 ± 0.059
0.0IleXaa: 0.0 ± 0.0
Lys
4.588LysAla: 4.588 ± 0.098
0.37LysCys: 0.37 ± 0.025
3.481LysAsp: 3.481 ± 0.082
5.394LysGlu: 5.394 ± 0.097
1.748LysPhe: 1.748 ± 0.063
4.857LysGly: 4.857 ± 0.084
1.217LysHis: 1.217 ± 0.043
3.712LysIle: 3.712 ± 0.081
4.014LysLys: 4.014 ± 0.096
5.451LysLeu: 5.451 ± 0.084
1.949LysMet: 1.949 ± 0.056
2.388LysAsn: 2.388 ± 0.067
2.166LysPro: 2.166 ± 0.059
2.326LysGln: 2.326 ± 0.07
3.451LysArg: 3.451 ± 0.069
3.518LysSer: 3.518 ± 0.074
2.926LysThr: 2.926 ± 0.066
4.749LysVal: 4.749 ± 0.081
0.67LysTrp: 0.67 ± 0.031
2.449LysTyr: 2.449 ± 0.063
0.0LysXaa: 0.0 ± 0.0
Leu
6.882LeuAla: 6.882 ± 0.124
0.898LeuCys: 0.898 ± 0.038
5.022LeuAsp: 5.022 ± 0.094
6.394LeuGlu: 6.394 ± 0.11
4.488LeuPhe: 4.488 ± 0.086
6.713LeuGly: 6.713 ± 0.115
1.839LeuHis: 1.839 ± 0.062
5.663LeuIle: 5.663 ± 0.117
5.512LeuLys: 5.512 ± 0.093
10.288LeuLeu: 10.288 ± 0.177
2.532LeuMet: 2.532 ± 0.065
3.987LeuAsn: 3.987 ± 0.091
4.669LeuPro: 4.669 ± 0.089
3.758LeuGln: 3.758 ± 0.088
5.419LeuArg: 5.419 ± 0.099
7.695LeuSer: 7.695 ± 0.135
5.366LeuThr: 5.366 ± 0.099
6.12LeuVal: 6.12 ± 0.107
1.017LeuTrp: 1.017 ± 0.044
3.625LeuTyr: 3.625 ± 0.081
0.0LeuXaa: 0.0 ± 0.0
Met
2.146MetAla: 2.146 ± 0.061
0.176MetCys: 0.176 ± 0.016
1.473MetAsp: 1.473 ± 0.041
1.902MetGlu: 1.902 ± 0.058
0.665MetPhe: 0.665 ± 0.036
2.089MetGly: 2.089 ± 0.053
0.469MetHis: 0.469 ± 0.029
1.672MetIle: 1.672 ± 0.059
2.055MetLys: 2.055 ± 0.048
2.523MetLeu: 2.523 ± 0.07
0.914MetMet: 0.914 ± 0.036
1.153MetAsn: 1.153 ± 0.041
1.245MetPro: 1.245 ± 0.043
1.01MetGln: 1.01 ± 0.039
1.513MetArg: 1.513 ± 0.05
1.66MetSer: 1.66 ± 0.052
1.414MetThr: 1.414 ± 0.044
1.895MetVal: 1.895 ± 0.052
0.196MetTrp: 0.196 ± 0.02
0.742MetTyr: 0.742 ± 0.032
0.0MetXaa: 0.0 ± 0.0
Asn
3.045AsnAla: 3.045 ± 0.079
0.362AsnCys: 0.362 ± 0.027
2.255AsnAsp: 2.255 ± 0.067
2.479AsnGlu: 2.479 ± 0.059
1.747AsnPhe: 1.747 ± 0.049
3.134AsnGly: 3.134 ± 0.082
0.944AsnHis: 0.944 ± 0.042
3.177AsnIle: 3.177 ± 0.075
2.736AsnLys: 2.736 ± 0.064
3.792AsnLeu: 3.792 ± 0.076
1.101AsnMet: 1.101 ± 0.041
2.223AsnAsn: 2.223 ± 0.057
2.346AsnPro: 2.346 ± 0.059
1.508AsnGln: 1.508 ± 0.047
2.43AsnArg: 2.43 ± 0.064
2.593AsnSer: 2.593 ± 0.069
2.398AsnThr: 2.398 ± 0.074
2.585AsnVal: 2.585 ± 0.069
0.503AsnTrp: 0.503 ± 0.032
1.924AsnTyr: 1.924 ± 0.056
0.0AsnXaa: 0.0 ± 0.0
Pro
2.518ProAla: 2.518 ± 0.068
0.237ProCys: 0.237 ± 0.021
2.313ProAsp: 2.313 ± 0.061
3.508ProGlu: 3.508 ± 0.076
1.814ProPhe: 1.814 ± 0.052
2.12ProGly: 2.12 ± 0.056
0.898ProHis: 0.898 ± 0.035
2.879ProIle: 2.879 ± 0.058
2.452ProLys: 2.452 ± 0.076
3.733ProLeu: 3.733 ± 0.086
1.092ProMet: 1.092 ± 0.045
1.941ProAsn: 1.941 ± 0.055
0.973ProPro: 0.973 ± 0.043
1.547ProGln: 1.547 ± 0.051
1.583ProArg: 1.583 ± 0.049
2.61ProSer: 2.61 ± 0.067
2.493ProThr: 2.493 ± 0.064
2.36ProVal: 2.36 ± 0.055
0.428ProTrp: 0.428 ± 0.028
1.666ProTyr: 1.666 ± 0.057
0.0ProXaa: 0.0 ± 0.0
Gln
2.657GlnAla: 2.657 ± 0.061
0.229GlnCys: 0.229 ± 0.019
1.766GlnAsp: 1.766 ± 0.05
2.774GlnGlu: 2.774 ± 0.072
1.294GlnPhe: 1.294 ± 0.046
2.429GlnGly: 2.429 ± 0.069
0.766GlnHis: 0.766 ± 0.031
2.351GlnIle: 2.351 ± 0.061
2.507GlnLys: 2.507 ± 0.069
4.261GlnLeu: 4.261 ± 0.098
1.132GlnMet: 1.132 ± 0.036
1.448GlnAsn: 1.448 ± 0.045
1.391GlnPro: 1.391 ± 0.048
1.65GlnGln: 1.65 ± 0.065
2.096GlnArg: 2.096 ± 0.058
2.224GlnSer: 2.224 ± 0.059
1.716GlnThr: 1.716 ± 0.048
2.542GlnVal: 2.542 ± 0.064
0.463GlnTrp: 0.463 ± 0.024
1.541GlnTyr: 1.541 ± 0.052
0.0GlnXaa: 0.0 ± 0.0
Arg
3.511ArgAla: 3.511 ± 0.072
0.36ArgCys: 0.36 ± 0.023
2.521ArgAsp: 2.521 ± 0.056
3.883ArgGlu: 3.883 ± 0.082
2.296ArgPhe: 2.296 ± 0.061
3.34ArgGly: 3.34 ± 0.063
1.153ArgHis: 1.153 ± 0.041
3.578ArgIle: 3.578 ± 0.065
3.339ArgLys: 3.339 ± 0.071
5.082ArgLeu: 5.082 ± 0.101
1.716ArgMet: 1.716 ± 0.047
2.267ArgAsn: 2.267 ± 0.063
1.867ArgPro: 1.867 ± 0.051
1.979ArgGln: 1.979 ± 0.067
2.912ArgArg: 2.912 ± 0.076
3.198ArgSer: 3.198 ± 0.068
2.617ArgThr: 2.617 ± 0.061
3.386ArgVal: 3.386 ± 0.073
0.659ArgTrp: 0.659 ± 0.038
2.411ArgTyr: 2.411 ± 0.066
0.0ArgXaa: 0.0 ± 0.0
Ser
4.316SerAla: 4.316 ± 0.095
0.678SerCys: 0.678 ± 0.032
3.424SerAsp: 3.424 ± 0.074
4.067SerGlu: 4.067 ± 0.079
3.129SerPhe: 3.129 ± 0.084
4.638SerGly: 4.638 ± 0.089
1.263SerHis: 1.263 ± 0.046
4.631SerIle: 4.631 ± 0.086
3.743SerLys: 3.743 ± 0.066
6.147SerLeu: 6.147 ± 0.109
1.585SerMet: 1.585 ± 0.047
2.81SerAsn: 2.81 ± 0.069
2.423SerPro: 2.423 ± 0.061
2.136SerGln: 2.136 ± 0.058
3.037SerArg: 3.037 ± 0.068
4.146SerSer: 4.146 ± 0.091
3.373SerThr: 3.373 ± 0.078
4.133SerVal: 4.133 ± 0.081
0.719SerTrp: 0.719 ± 0.038
2.865SerTyr: 2.865 ± 0.081
0.0SerXaa: 0.0 ± 0.0
Thr
3.833ThrAla: 3.833 ± 0.079
0.387ThrCys: 0.387 ± 0.024
2.996ThrAsp: 2.996 ± 0.069
3.439ThrGlu: 3.439 ± 0.071
2.477ThrPhe: 2.477 ± 0.07
3.64ThrGly: 3.64 ± 0.078
1.159ThrHis: 1.159 ± 0.042
4.125ThrIle: 4.125 ± 0.071
3.156ThrLys: 3.156 ± 0.066
5.884ThrLeu: 5.884 ± 0.083
1.297ThrMet: 1.297 ± 0.049
2.323ThrAsn: 2.323 ± 0.064
3.154ThrPro: 3.154 ± 0.067
1.876ThrGln: 1.876 ± 0.056
2.255ThrArg: 2.255 ± 0.059
3.445ThrSer: 3.445 ± 0.074
3.471ThrThr: 3.471 ± 0.086
3.34ThrVal: 3.34 ± 0.071
0.506ThrTrp: 0.506 ± 0.027
2.342ThrTyr: 2.342 ± 0.057
0.0ThrXaa: 0.0 ± 0.0
Val
5.571ValAla: 5.571 ± 0.115
0.597ValCys: 0.597 ± 0.029
3.88ValAsp: 3.88 ± 0.081
4.86ValGlu: 4.86 ± 0.089
2.592ValPhe: 2.592 ± 0.065
4.762ValGly: 4.762 ± 0.079
1.213ValHis: 1.213 ± 0.042
4.256ValIle: 4.256 ± 0.085
3.755ValLys: 3.755 ± 0.078
6.417ValLeu: 6.417 ± 0.104
1.804ValMet: 1.804 ± 0.056
2.817ValAsn: 2.817 ± 0.077
2.686ValPro: 2.686 ± 0.061
2.339ValGln: 2.339 ± 0.062
3.608ValArg: 3.608 ± 0.071
4.419ValSer: 4.419 ± 0.087
3.906ValThr: 3.906 ± 0.081
5.862ValVal: 5.862 ± 0.107
0.71ValTrp: 0.71 ± 0.034
2.376ValTyr: 2.376 ± 0.063
0.0ValXaa: 0.0 ± 0.0
Trp
0.685TrpAla: 0.685 ± 0.036
0.115TrpCys: 0.115 ± 0.011
0.606TrpAsp: 0.606 ± 0.032
0.662TrpGlu: 0.662 ± 0.032
0.403TrpPhe: 0.403 ± 0.024
0.829TrpGly: 0.829 ± 0.034
0.296TrpHis: 0.296 ± 0.021
0.725TrpIle: 0.725 ± 0.037
0.657TrpLys: 0.657 ± 0.033
1.191TrpLeu: 1.191 ± 0.049
0.341TrpMet: 0.341 ± 0.024
0.534TrpAsn: 0.534 ± 0.03
0.168TrpPro: 0.168 ± 0.016
0.548TrpGln: 0.548 ± 0.029
0.675TrpArg: 0.675 ± 0.036
0.753TrpSer: 0.753 ± 0.036
0.52TrpThr: 0.52 ± 0.028
0.756TrpVal: 0.756 ± 0.031
0.188TrpTrp: 0.188 ± 0.017
0.428TrpTyr: 0.428 ± 0.026
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.899TyrAla: 2.899 ± 0.068
0.362TyrCys: 0.362 ± 0.025
2.392TyrAsp: 2.392 ± 0.063
2.329TyrGlu: 2.329 ± 0.061
1.945TyrPhe: 1.945 ± 0.052
2.893TyrGly: 2.893 ± 0.077
0.91TyrHis: 0.91 ± 0.035
2.474TyrIle: 2.474 ± 0.064
2.313TyrLys: 2.313 ± 0.063
3.892TyrLeu: 3.892 ± 0.079
0.967TyrMet: 0.967 ± 0.038
2.151TyrAsn: 2.151 ± 0.058
1.797TyrPro: 1.797 ± 0.046
1.652TyrGln: 1.652 ± 0.047
2.285TyrArg: 2.285 ± 0.063
2.814TyrSer: 2.814 ± 0.081
2.424TyrThr: 2.424 ± 0.068
2.213TyrVal: 2.213 ± 0.053
0.463TyrTrp: 0.463 ± 0.027
1.924TyrTyr: 1.924 ± 0.063
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 1990 proteins (680190 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