Amino acid dipepetide frequency for Chlamydiales bacterium SCGC AG-110-P3

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
7.256AlaAla: 7.256 ± 0.179
1.135AlaCys: 1.135 ± 0.061
4.157AlaAsp: 4.157 ± 0.112
5.118AlaGlu: 5.118 ± 0.128
3.3AlaPhe: 3.3 ± 0.104
5.704AlaGly: 5.704 ± 0.117
1.706AlaHis: 1.706 ± 0.065
5.701AlaIle: 5.701 ± 0.152
3.912AlaLys: 3.912 ± 0.118
9.028AlaLeu: 9.028 ± 0.214
2.256AlaMet: 2.256 ± 0.092
2.528AlaAsn: 2.528 ± 0.096
3.105AlaPro: 3.105 ± 0.093
3.063AlaGln: 3.063 ± 0.088
4.203AlaArg: 4.203 ± 0.124
5.253AlaSer: 5.253 ± 0.12
4.753AlaThr: 4.753 ± 0.124
6.135AlaVal: 6.135 ± 0.144
0.89AlaTrp: 0.89 ± 0.045
2.154AlaTyr: 2.154 ± 0.082
0.0AlaXaa: 0.0 ± 0.0
Cys
0.879CysAla: 0.879 ± 0.052
0.341CysCys: 0.341 ± 0.031
0.827CysAsp: 0.827 ± 0.059
0.838CysGlu: 0.838 ± 0.044
0.566CysPhe: 0.566 ± 0.038
1.132CysGly: 1.132 ± 0.066
0.393CysHis: 0.393 ± 0.031
0.827CysIle: 0.827 ± 0.053
0.558CysLys: 0.558 ± 0.05
1.19CysLeu: 1.19 ± 0.068
0.302CysMet: 0.302 ± 0.029
0.519CysAsn: 0.519 ± 0.04
0.569CysPro: 0.569 ± 0.05
0.459CysGln: 0.459 ± 0.037
0.767CysArg: 0.767 ± 0.052
1.011CysSer: 1.011 ± 0.053
0.687CysThr: 0.687 ± 0.048
0.75CysVal: 0.75 ± 0.048
0.187CysTrp: 0.187 ± 0.024
0.473CysTyr: 0.473 ± 0.037
0.0CysXaa: 0.0 ± 0.0
Asp
4.758AspAla: 4.758 ± 0.136
0.734AspCys: 0.734 ± 0.049
3.088AspAsp: 3.088 ± 0.106
3.528AspGlu: 3.528 ± 0.098
2.206AspPhe: 2.206 ± 0.071
4.063AspGly: 4.063 ± 0.14
1.33AspHis: 1.33 ± 0.058
3.459AspIle: 3.459 ± 0.1
2.698AspLys: 2.698 ± 0.099
5.83AspLeu: 5.83 ± 0.127
1.069AspMet: 1.069 ± 0.056
1.929AspAsn: 1.929 ± 0.081
3.102AspPro: 3.102 ± 0.107
2.269AspGln: 2.269 ± 0.089
3.368AspArg: 3.368 ± 0.114
3.877AspSer: 3.877 ± 0.109
3.124AspThr: 3.124 ± 0.102
3.506AspVal: 3.506 ± 0.101
0.723AspTrp: 0.723 ± 0.046
1.698AspTyr: 1.698 ± 0.063
0.0AspXaa: 0.0 ± 0.0
Glu
5.769GluAla: 5.769 ± 0.146
0.747GluCys: 0.747 ± 0.055
3.085GluAsp: 3.085 ± 0.104
5.193GluGlu: 5.193 ± 0.186
2.253GluPhe: 2.253 ± 0.094
4.594GluGly: 4.594 ± 0.109
1.407GluHis: 1.407 ± 0.066
4.165GluIle: 4.165 ± 0.119
4.085GluLys: 4.085 ± 0.152
6.712GluLeu: 6.712 ± 0.153
1.588GluMet: 1.588 ± 0.073
2.569GluAsn: 2.569 ± 0.095
1.959GluPro: 1.959 ± 0.066
3.322GluGln: 3.322 ± 0.131
4.083GluArg: 4.083 ± 0.107
4.019GluSer: 4.019 ± 0.114
3.528GluThr: 3.528 ± 0.103
4.616GluVal: 4.616 ± 0.117
0.929GluTrp: 0.929 ± 0.051
2.006GluTyr: 2.006 ± 0.07
0.003GluXaa: 0.003 ± 0.003
Phe
2.863PheAla: 2.863 ± 0.099
0.558PheCys: 0.558 ± 0.042
2.442PheAsp: 2.442 ± 0.083
2.382PheGlu: 2.382 ± 0.081
1.956PhePhe: 1.956 ± 0.094
2.775PheGly: 2.775 ± 0.099
0.912PheHis: 0.912 ± 0.052
2.077PheIle: 2.077 ± 0.076
1.563PheLys: 1.563 ± 0.074
4.349PheLeu: 4.349 ± 0.152
0.778PheMet: 0.778 ± 0.056
1.489PheAsn: 1.489 ± 0.068
1.56PhePro: 1.56 ± 0.066
1.357PheGln: 1.357 ± 0.05
2.181PheArg: 2.181 ± 0.087
3.291PheSer: 3.291 ± 0.106
2.066PheThr: 2.066 ± 0.079
2.473PheVal: 2.473 ± 0.1
0.426PheTrp: 0.426 ± 0.037
1.091PheTyr: 1.091 ± 0.054
0.0PheXaa: 0.0 ± 0.0
Gly
5.193GlyAla: 5.193 ± 0.15
1.14GlyCys: 1.14 ± 0.068
3.761GlyAsp: 3.761 ± 0.121
4.05GlyGlu: 4.05 ± 0.114
2.819GlyPhe: 2.819 ± 0.097
4.789GlyGly: 4.789 ± 0.152
1.712GlyHis: 1.712 ± 0.081
4.646GlyIle: 4.646 ± 0.122
3.893GlyLys: 3.893 ± 0.124
6.541GlyLeu: 6.541 ± 0.17
1.849GlyMet: 1.849 ± 0.096
2.316GlyAsn: 2.316 ± 0.097
2.025GlyPro: 2.025 ± 0.072
2.387GlyGln: 2.387 ± 0.081
4.063GlyArg: 4.063 ± 0.127
4.508GlySer: 4.508 ± 0.132
3.841GlyThr: 3.841 ± 0.11
5.236GlyVal: 5.236 ± 0.146
0.997GlyTrp: 0.997 ± 0.058
2.478GlyTyr: 2.478 ± 0.079
0.0GlyXaa: 0.0 ± 0.0
His
1.665HisAla: 1.665 ± 0.073
0.426HisCys: 0.426 ± 0.034
1.115HisAsp: 1.115 ± 0.06
1.192HisGlu: 1.192 ± 0.059
1.008HisPhe: 1.008 ± 0.059
1.478HisGly: 1.478 ± 0.07
0.723HisHis: 0.723 ± 0.053
1.302HisIle: 1.302 ± 0.063
0.904HisLys: 0.904 ± 0.048
2.83HisLeu: 2.83 ± 0.116
0.453HisMet: 0.453 ± 0.039
0.788HisAsn: 0.788 ± 0.054
1.426HisPro: 1.426 ± 0.075
0.967HisGln: 0.967 ± 0.054
1.681HisArg: 1.681 ± 0.075
1.58HisSer: 1.58 ± 0.073
1.104HisThr: 1.104 ± 0.062
1.223HisVal: 1.223 ± 0.057
0.343HisTrp: 0.343 ± 0.028
0.89HisTyr: 0.89 ± 0.054
0.0HisXaa: 0.0 ± 0.0
Ile
5.747IleAla: 5.747 ± 0.137
0.745IleCys: 0.745 ± 0.043
4.349IleAsp: 4.349 ± 0.114
4.605IleGlu: 4.605 ± 0.121
2.25IlePhe: 2.25 ± 0.092
4.539IleGly: 4.539 ± 0.139
1.464IleHis: 1.464 ± 0.063
3.481IleIle: 3.481 ± 0.126
3.091IleLys: 3.091 ± 0.115
5.717IleLeu: 5.717 ± 0.15
1.137IleMet: 1.137 ± 0.057
2.492IleAsn: 2.492 ± 0.095
2.948IlePro: 2.948 ± 0.091
2.371IleGln: 2.371 ± 0.088
3.442IleArg: 3.442 ± 0.109
4.25IleSer: 4.25 ± 0.12
3.783IleThr: 3.783 ± 0.126
4.088IleVal: 4.088 ± 0.133
0.492IleTrp: 0.492 ± 0.038
1.558IleTyr: 1.558 ± 0.067
0.0IleXaa: 0.0 ± 0.0
Lys
4.223LysAla: 4.223 ± 0.135
0.415LysCys: 0.415 ± 0.04
2.745LysAsp: 2.745 ± 0.099
4.456LysGlu: 4.456 ± 0.136
1.396LysPhe: 1.396 ± 0.075
3.761LysGly: 3.761 ± 0.125
1.132LysHis: 1.132 ± 0.055
3.302LysIle: 3.302 ± 0.109
3.816LysLys: 3.816 ± 0.154
4.78LysLeu: 4.78 ± 0.133
1.327LysMet: 1.327 ± 0.066
2.099LysAsn: 2.099 ± 0.082
1.72LysPro: 1.72 ± 0.076
2.236LysGln: 2.236 ± 0.095
3.261LysArg: 3.261 ± 0.112
3.107LysSer: 3.107 ± 0.112
3.036LysThr: 3.036 ± 0.094
3.264LysVal: 3.264 ± 0.111
0.437LysTrp: 0.437 ± 0.033
1.324LysTyr: 1.324 ± 0.061
0.0LysXaa: 0.0 ± 0.0
Leu
8.629LeuAla: 8.629 ± 0.198
1.429LeuCys: 1.429 ± 0.064
6.195LeuAsp: 6.195 ± 0.131
6.948LeuGlu: 6.948 ± 0.157
4.275LeuPhe: 4.275 ± 0.119
6.585LeuGly: 6.585 ± 0.153
2.294LeuHis: 2.294 ± 0.094
5.882LeuIle: 5.882 ± 0.164
5.577LeuLys: 5.577 ± 0.17
10.423LeuLeu: 10.423 ± 0.234
2.179LeuMet: 2.179 ± 0.08
3.665LeuAsn: 3.665 ± 0.104
4.764LeuPro: 4.764 ± 0.13
4.088LeuGln: 4.088 ± 0.111
5.91LeuArg: 5.91 ± 0.144
7.728LeuSer: 7.728 ± 0.213
6.083LeuThr: 6.083 ± 0.135
6.366LeuVal: 6.366 ± 0.152
1.036LeuTrp: 1.036 ± 0.053
2.698LeuTyr: 2.698 ± 0.082
0.0LeuXaa: 0.0 ± 0.0
Met
2.006MetAla: 2.006 ± 0.095
0.201MetCys: 0.201 ± 0.026
1.225MetAsp: 1.225 ± 0.068
1.525MetGlu: 1.525 ± 0.061
0.734MetPhe: 0.734 ± 0.048
1.78MetGly: 1.78 ± 0.078
0.517MetHis: 0.517 ± 0.036
1.481MetIle: 1.481 ± 0.07
1.234MetLys: 1.234 ± 0.06
2.289MetLeu: 2.289 ± 0.076
0.681MetMet: 0.681 ± 0.052
0.893MetAsn: 0.893 ± 0.05
1.102MetPro: 1.102 ± 0.051
0.931MetGln: 0.931 ± 0.05
1.437MetArg: 1.437 ± 0.063
1.442MetSer: 1.442 ± 0.076
1.915MetThr: 1.915 ± 0.09
1.431MetVal: 1.431 ± 0.068
0.159MetTrp: 0.159 ± 0.018
0.412MetTyr: 0.412 ± 0.035
0.0MetXaa: 0.0 ± 0.0
Asn
3.022AsnAla: 3.022 ± 0.12
0.552AsnCys: 0.552 ± 0.049
1.967AsnAsp: 1.967 ± 0.075
2.137AsnGlu: 2.137 ± 0.08
1.28AsnPhe: 1.28 ± 0.062
2.462AsnGly: 2.462 ± 0.096
0.849AsnHis: 0.849 ± 0.044
2.47AsnIle: 2.47 ± 0.107
1.918AsnLys: 1.918 ± 0.095
3.786AsnLeu: 3.786 ± 0.114
0.687AsnMet: 0.687 ± 0.045
1.418AsnAsn: 1.418 ± 0.078
2.096AsnPro: 2.096 ± 0.071
1.407AsnGln: 1.407 ± 0.077
2.327AsnArg: 2.327 ± 0.088
2.382AsnSer: 2.382 ± 0.099
2.319AsnThr: 2.319 ± 0.11
2.099AsnVal: 2.099 ± 0.082
0.418AsnTrp: 0.418 ± 0.034
1.074AsnTyr: 1.074 ± 0.056
0.0AsnXaa: 0.0 ± 0.0
Pro
2.934ProAla: 2.934 ± 0.094
0.549ProCys: 0.549 ± 0.039
2.385ProAsp: 2.385 ± 0.085
3.396ProGlu: 3.396 ± 0.102
1.742ProPhe: 1.742 ± 0.074
2.668ProGly: 2.668 ± 0.092
0.885ProHis: 0.885 ± 0.053
2.55ProIle: 2.55 ± 0.085
1.981ProLys: 1.981 ± 0.079
4.214ProLeu: 4.214 ± 0.123
0.876ProMet: 0.876 ± 0.049
1.613ProAsn: 1.613 ± 0.061
1.967ProPro: 1.967 ± 0.101
1.448ProGln: 1.448 ± 0.06
1.973ProArg: 1.973 ± 0.083
3.486ProSer: 3.486 ± 0.118
2.503ProThr: 2.503 ± 0.083
3.006ProVal: 3.006 ± 0.1
0.58ProTrp: 0.58 ± 0.045
1.181ProTyr: 1.181 ± 0.06
0.003ProXaa: 0.003 ± 0.003
Gln
3.431GlnAla: 3.431 ± 0.105
0.412GlnCys: 0.412 ± 0.032
1.789GlnAsp: 1.789 ± 0.073
2.525GlnGlu: 2.525 ± 0.098
1.363GlnPhe: 1.363 ± 0.066
2.357GlnGly: 2.357 ± 0.075
0.978GlnHis: 0.978 ± 0.057
2.36GlnIle: 2.36 ± 0.098
2.192GlnLys: 2.192 ± 0.094
4.47GlnLeu: 4.47 ± 0.127
1.137GlnMet: 1.137 ± 0.054
1.393GlnAsn: 1.393 ± 0.058
1.294GlnPro: 1.294 ± 0.064
2.382GlnGln: 2.382 ± 0.105
2.871GlnArg: 2.871 ± 0.102
2.253GlnSer: 2.253 ± 0.08
1.909GlnThr: 1.909 ± 0.081
2.811GlnVal: 2.811 ± 0.078
0.571GlnTrp: 0.571 ± 0.044
1.19GlnTyr: 1.19 ± 0.063
0.003GlnXaa: 0.003 ± 0.003
Arg
3.912ArgAla: 3.912 ± 0.099
0.863ArgCys: 0.863 ± 0.048
3.146ArgAsp: 3.146 ± 0.108
3.846ArgGlu: 3.846 ± 0.11
2.448ArgPhe: 2.448 ± 0.091
3.522ArgGly: 3.522 ± 0.102
1.407ArgHis: 1.407 ± 0.061
4.061ArgIle: 4.061 ± 0.117
3.074ArgLys: 3.074 ± 0.099
6.258ArgLeu: 6.258 ± 0.164
1.648ArgMet: 1.648 ± 0.071
2.151ArgAsn: 2.151 ± 0.081
2.039ArgPro: 2.039 ± 0.087
2.478ArgGln: 2.478 ± 0.101
3.69ArgArg: 3.69 ± 0.129
4.006ArgSer: 4.006 ± 0.101
2.992ArgThr: 2.992 ± 0.098
3.72ArgVal: 3.72 ± 0.11
0.835ArgTrp: 0.835 ± 0.053
1.986ArgTyr: 1.986 ± 0.068
0.0ArgXaa: 0.0 ± 0.0
Ser
5.234SerAla: 5.234 ± 0.128
0.832SerCys: 0.832 ± 0.052
4.286SerAsp: 4.286 ± 0.114
4.53SerGlu: 4.53 ± 0.131
2.514SerPhe: 2.514 ± 0.09
4.78SerGly: 4.78 ± 0.125
1.514SerHis: 1.514 ± 0.06
4.316SerIle: 4.316 ± 0.126
3.681SerLys: 3.681 ± 0.132
7.11SerLeu: 7.11 ± 0.18
1.541SerMet: 1.541 ± 0.074
2.734SerAsn: 2.734 ± 0.103
2.995SerPro: 2.995 ± 0.091
2.583SerGln: 2.583 ± 0.085
3.618SerArg: 3.618 ± 0.099
5.649SerSer: 5.649 ± 0.148
4.061SerThr: 4.061 ± 0.124
4.879SerVal: 4.879 ± 0.131
0.841SerTrp: 0.841 ± 0.05
1.876SerTyr: 1.876 ± 0.068
0.003SerXaa: 0.003 ± 0.003
Thr
5.138ThrAla: 5.138 ± 0.14
0.684ThrCys: 0.684 ± 0.048
3.206ThrAsp: 3.206 ± 0.1
3.659ThrGlu: 3.659 ± 0.113
2.146ThrPhe: 2.146 ± 0.078
4.374ThrGly: 4.374 ± 0.108
1.31ThrHis: 1.31 ± 0.062
3.692ThrIle: 3.692 ± 0.088
2.511ThrLys: 2.511 ± 0.089
6.352ThrLeu: 6.352 ± 0.141
1.25ThrMet: 1.25 ± 0.051
1.926ThrAsn: 1.926 ± 0.08
2.885ThrPro: 2.885 ± 0.101
1.931ThrGln: 1.931 ± 0.088
2.8ThrArg: 2.8 ± 0.099
3.846ThrSer: 3.846 ± 0.122
3.673ThrThr: 3.673 ± 0.141
4.613ThrVal: 4.613 ± 0.131
0.588ThrTrp: 0.588 ± 0.045
1.47ThrTyr: 1.47 ± 0.06
0.0ThrXaa: 0.0 ± 0.0
Val
6.008ValAla: 6.008 ± 0.152
0.931ValCys: 0.931 ± 0.051
4.239ValAsp: 4.239 ± 0.128
4.506ValGlu: 4.506 ± 0.135
2.654ValPhe: 2.654 ± 0.103
4.228ValGly: 4.228 ± 0.112
1.434ValHis: 1.434 ± 0.077
4.434ValIle: 4.434 ± 0.13
3.19ValLys: 3.19 ± 0.105
6.388ValLeu: 6.388 ± 0.157
1.703ValMet: 1.703 ± 0.079
2.464ValAsn: 2.464 ± 0.095
2.723ValPro: 2.723 ± 0.101
2.192ValGln: 2.192 ± 0.07
3.58ValArg: 3.58 ± 0.112
5.063ValSer: 5.063 ± 0.118
4.53ValThr: 4.53 ± 0.126
5.0ValVal: 5.0 ± 0.176
0.665ValTrp: 0.665 ± 0.049
1.602ValTyr: 1.602 ± 0.076
0.0ValXaa: 0.0 ± 0.0
Trp
0.668TrpAla: 0.668 ± 0.044
0.179TrpCys: 0.179 ± 0.022
0.646TrpAsp: 0.646 ± 0.049
0.679TrpGlu: 0.679 ± 0.042
0.431TrpPhe: 0.431 ± 0.031
0.648TrpGly: 0.648 ± 0.039
0.291TrpHis: 0.291 ± 0.028
0.882TrpIle: 0.882 ± 0.051
0.706TrpLys: 0.706 ± 0.053
1.258TrpLeu: 1.258 ± 0.067
0.376TrpMet: 0.376 ± 0.033
0.538TrpAsn: 0.538 ± 0.044
0.382TrpPro: 0.382 ± 0.034
0.569TrpGln: 0.569 ± 0.041
0.734TrpArg: 0.734 ± 0.046
0.857TrpSer: 0.857 ± 0.051
0.591TrpThr: 0.591 ± 0.042
0.706TrpVal: 0.706 ± 0.05
0.212TrpTrp: 0.212 ± 0.026
0.387TrpTyr: 0.387 ± 0.032
0.003TrpXaa: 0.003 ± 0.003
Tyr
2.017TyrAla: 2.017 ± 0.081
0.401TyrCys: 0.401 ± 0.034
1.703TyrAsp: 1.703 ± 0.07
1.517TyrGlu: 1.517 ± 0.063
1.25TyrPhe: 1.25 ± 0.063
2.0TyrGly: 2.0 ± 0.09
0.846TyrHis: 0.846 ± 0.045
1.462TyrIle: 1.462 ± 0.063
1.253TyrLys: 1.253 ± 0.047
3.228TyrLeu: 3.228 ± 0.105
0.552TyrMet: 0.552 ± 0.037
1.143TyrAsn: 1.143 ± 0.068
1.28TyrPro: 1.28 ± 0.058
1.25TyrGln: 1.25 ± 0.059
2.093TyrArg: 2.093 ± 0.068
1.967TyrSer: 1.967 ± 0.066
1.555TyrThr: 1.555 ± 0.064
1.615TyrVal: 1.615 ± 0.079
0.415TyrTrp: 0.415 ± 0.038
1.028TyrTyr: 1.028 ± 0.058
0.0TyrXaa: 0.0 ± 0.0
Xaa
0.003XaaAla: 0.003 ± 0.003
0.0XaaCys: 0.0 ± 0.0
0.0XaaAsp: 0.0 ± 0.0
0.0XaaGlu: 0.0 ± 0.0
0.0XaaPhe: 0.0 ± 0.0
0.005XaaGly: 0.005 ± 0.004
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
0.003XaaAsn: 0.003 ± 0.003
0.0XaaPro: 0.0 ± 0.0
0.0XaaGln: 0.0 ± 0.0
0.0XaaArg: 0.0 ± 0.0
0.0XaaSer: 0.0 ± 0.0
0.003XaaThr: 0.003 ± 0.003
0.0XaaVal: 0.0 ± 0.0
0.0XaaTrp: 0.0 ± 0.0
0.0XaaTyr: 0.0 ± 0.0
0.041XaaXaa: 0.041 ± 0.019
Statistics based on 1225 proteins (363987 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