Amino acid dipepetide frequency for Megavirus chiliensis

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
1.307AlaAla: 1.307 ± 0.073
0.916AlaCys: 0.916 ± 0.065
1.794AlaAsp: 1.794 ± 0.081
1.432AlaGlu: 1.432 ± 0.073
1.339AlaPhe: 1.339 ± 0.067
1.35AlaGly: 1.35 ± 0.095
0.585AlaHis: 0.585 ± 0.037
3.298AlaIle: 3.298 ± 0.117
2.583AlaLys: 2.583 ± 0.102
2.459AlaLeu: 2.459 ± 0.095
0.723AlaMet: 0.723 ± 0.046
2.641AlaAsn: 2.641 ± 0.113
0.85AlaPro: 0.85 ± 0.058
0.982AlaGln: 0.982 ± 0.06
1.032AlaArg: 1.032 ± 0.072
2.446AlaSer: 2.446 ± 0.096
1.517AlaThr: 1.517 ± 0.078
1.572AlaVal: 1.572 ± 0.095
0.204AlaTrp: 0.204 ± 0.02
1.4AlaTyr: 1.4 ± 0.056
0.0AlaXaa: 0.0 ± 0.0
Cys
0.691CysAla: 0.691 ± 0.043
0.461CysCys: 0.461 ± 0.05
1.429CysAsp: 1.429 ± 0.065
0.932CysGlu: 0.932 ± 0.052
0.855CysPhe: 0.855 ± 0.056
1.154CysGly: 1.154 ± 0.068
0.466CysHis: 0.466 ± 0.04
2.898CysIle: 2.898 ± 0.221
1.453CysLys: 1.453 ± 0.074
1.371CysLeu: 1.371 ± 0.072
0.41CysMet: 0.41 ± 0.031
1.445CysAsn: 1.445 ± 0.09
0.717CysPro: 0.717 ± 0.061
0.797CysGln: 0.797 ± 0.054
0.765CysArg: 0.765 ± 0.051
1.03CysSer: 1.03 ± 0.058
0.797CysThr: 0.797 ± 0.045
0.908CysVal: 0.908 ± 0.053
0.185CysTrp: 0.185 ± 0.026
0.905CysTyr: 0.905 ± 0.045
0.0CysXaa: 0.0 ± 0.0
Asp
1.829AspAla: 1.829 ± 0.09
1.588AspCys: 1.588 ± 0.122
4.55AspAsp: 4.55 ± 0.202
3.147AspGlu: 3.147 ± 0.109
3.279AspPhe: 3.279 ± 0.101
2.292AspGly: 2.292 ± 0.137
1.344AspHis: 1.344 ± 0.054
9.049AspIle: 9.049 ± 0.223
6.421AspLys: 6.421 ± 0.357
5.42AspLeu: 5.42 ± 0.158
1.389AspMet: 1.389 ± 0.055
6.513AspAsn: 6.513 ± 0.206
1.789AspPro: 1.789 ± 0.068
1.792AspGln: 1.792 ± 0.084
1.665AspArg: 1.665 ± 0.064
4.055AspSer: 4.055 ± 0.156
2.983AspThr: 2.983 ± 0.109
3.025AspVal: 3.025 ± 0.094
0.561AspTrp: 0.561 ± 0.042
3.991AspTyr: 3.991 ± 0.138
0.003AspXaa: 0.003 ± 0.003
Glu
1.323GluAla: 1.323 ± 0.069
1.011GluCys: 1.011 ± 0.063
2.083GluAsp: 2.083 ± 0.096
2.221GluGlu: 2.221 ± 0.118
2.668GluPhe: 2.668 ± 0.081
1.217GluGly: 1.217 ± 0.057
0.879GluHis: 0.879 ± 0.05
6.217GluIle: 6.217 ± 0.14
5.627GluLys: 5.627 ± 0.286
4.772GluLeu: 4.772 ± 0.134
1.154GluMet: 1.154 ± 0.063
4.912GluAsn: 4.912 ± 0.126
1.358GluPro: 1.358 ± 0.087
1.337GluGln: 1.337 ± 0.068
1.424GluArg: 1.424 ± 0.068
4.044GluSer: 4.044 ± 0.17
2.776GluThr: 2.776 ± 0.089
1.464GluVal: 1.464 ± 0.083
0.492GluTrp: 0.492 ± 0.041
3.909GluTyr: 3.909 ± 0.114
0.0GluXaa: 0.0 ± 0.0
Phe
1.262PheAla: 1.262 ± 0.064
0.741PheCys: 0.741 ± 0.054
3.748PheAsp: 3.748 ± 0.113
2.424PheGlu: 2.424 ± 0.076
1.805PhePhe: 1.805 ± 0.083
3.795PheGly: 3.795 ± 0.215
0.775PheHis: 0.775 ± 0.041
4.248PheIle: 4.248 ± 0.113
3.255PheLys: 3.255 ± 0.098
3.007PheLeu: 3.007 ± 0.097
1.199PheMet: 1.199 ± 0.055
5.434PheAsn: 5.434 ± 0.265
1.196PhePro: 1.196 ± 0.053
1.082PheGln: 1.082 ± 0.055
1.315PheArg: 1.315 ± 0.062
2.636PheSer: 2.636 ± 0.086
2.072PheThr: 2.072 ± 0.077
2.146PheVal: 2.146 ± 0.084
0.246PheTrp: 0.246 ± 0.027
2.231PheTyr: 2.231 ± 0.075
0.0PheXaa: 0.0 ± 0.0
Gly
2.101GlyAla: 2.101 ± 0.127
1.212GlyCys: 1.212 ± 0.084
4.301GlyAsp: 4.301 ± 0.802
2.782GlyGlu: 2.782 ± 0.4
2.049GlyPhe: 2.049 ± 0.091
2.649GlyGly: 2.649 ± 0.293
1.17GlyHis: 1.17 ± 0.077
3.658GlyIle: 3.658 ± 0.123
3.24GlyLys: 3.24 ± 0.127
3.552GlyLeu: 3.552 ± 0.195
0.823GlyMet: 0.823 ± 0.128
3.406GlyAsn: 3.406 ± 0.179
1.244GlyPro: 1.244 ± 0.147
1.352GlyGln: 1.352 ± 0.084
1.329GlyArg: 1.329 ± 0.071
3.181GlySer: 3.181 ± 0.213
2.263GlyThr: 2.263 ± 0.11
1.765GlyVal: 1.765 ± 0.094
0.625GlyTrp: 0.625 ± 0.062
2.771GlyTyr: 2.771 ± 0.099
0.003GlyXaa: 0.003 ± 0.002
His
0.619HisAla: 0.619 ± 0.048
0.447HisCys: 0.447 ± 0.041
1.413HisAsp: 1.413 ± 0.057
1.03HisGlu: 1.03 ± 0.051
1.008HisPhe: 1.008 ± 0.058
1.067HisGly: 1.067 ± 0.053
0.635HisHis: 0.635 ± 0.041
2.292HisIle: 2.292 ± 0.094
1.689HisLys: 1.689 ± 0.072
3.361HisLeu: 3.361 ± 0.246
0.461HisMet: 0.461 ± 0.036
1.961HisAsn: 1.961 ± 0.075
0.68HisPro: 0.68 ± 0.05
0.603HisGln: 0.603 ± 0.041
0.696HisArg: 0.696 ± 0.053
1.064HisSer: 1.064 ± 0.064
0.921HisThr: 0.921 ± 0.051
0.876HisVal: 0.876 ± 0.048
0.154HisTrp: 0.154 ± 0.023
1.207HisTyr: 1.207 ± 0.061
0.0HisXaa: 0.0 ± 0.0
Ile
3.083IleAla: 3.083 ± 0.106
1.813IleCys: 1.813 ± 0.071
7.998IleAsp: 7.998 ± 0.194
5.884IleGlu: 5.884 ± 0.137
4.55IlePhe: 4.55 ± 0.119
3.891IleGly: 3.891 ± 0.218
2.276IleHis: 2.276 ± 0.09
12.344IleIle: 12.344 ± 0.268
11.28IleLys: 11.28 ± 0.289
8.003IleLeu: 8.003 ± 0.179
2.636IleMet: 2.636 ± 0.083
11.616IleAsn: 11.616 ± 0.27
5.269IlePro: 5.269 ± 0.286
2.922IleGln: 2.922 ± 0.095
3.038IleArg: 3.038 ± 0.101
6.918IleSer: 6.918 ± 0.15
5.307IleThr: 5.307 ± 0.124
4.82IleVal: 4.82 ± 0.139
0.773IleTrp: 0.773 ± 0.047
5.844IleTyr: 5.844 ± 0.135
0.0IleXaa: 0.0 ± 0.0
Lys
1.702LysAla: 1.702 ± 0.088
1.805LysCys: 1.805 ± 0.075
3.774LysAsp: 3.774 ± 0.164
3.43LysGlu: 3.43 ± 0.139
4.184LysPhe: 4.184 ± 0.132
4.677LysGly: 4.677 ± 0.929
1.763LysHis: 1.763 ± 0.077
10.785LysIle: 10.785 ± 0.237
8.509LysLys: 8.509 ± 0.228
7.736LysLeu: 7.736 ± 0.152
2.083LysMet: 2.083 ± 0.076
9.822LysAsn: 9.822 ± 0.235
2.414LysPro: 2.414 ± 0.093
2.578LysGln: 2.578 ± 0.08
2.154LysArg: 2.154 ± 0.087
6.111LysSer: 6.111 ± 0.174
4.333LysThr: 4.333 ± 0.135
2.316LysVal: 2.316 ± 0.098
0.799LysTrp: 0.799 ± 0.048
8.072LysTyr: 8.072 ± 0.206
0.0LysXaa: 0.0 ± 0.0
Leu
2.893LeuAla: 2.893 ± 0.107
1.239LeuCys: 1.239 ± 0.059
5.627LeuAsp: 5.627 ± 0.141
5.018LeuGlu: 5.018 ± 0.144
3.412LeuPhe: 3.412 ± 0.112
3.335LeuGly: 3.335 ± 0.172
1.53LeuHis: 1.53 ± 0.072
7.625LeuIle: 7.625 ± 0.181
7.112LeuLys: 7.112 ± 0.197
7.331LeuLeu: 7.331 ± 0.241
1.805LeuMet: 1.805 ± 0.098
6.633LeuAsn: 6.633 ± 0.172
2.768LeuPro: 2.768 ± 0.088
2.427LeuGln: 2.427 ± 0.096
2.313LeuArg: 2.313 ± 0.091
6.143LeuSer: 6.143 ± 0.142
4.502LeuThr: 4.502 ± 0.203
3.938LeuVal: 3.938 ± 0.133
0.492LeuTrp: 0.492 ± 0.039
3.7LeuTyr: 3.7 ± 0.097
0.0LeuXaa: 0.0 ± 0.0
Met
0.85MetAla: 0.85 ± 0.051
0.4MetCys: 0.4 ± 0.033
1.63MetAsp: 1.63 ± 0.076
1.305MetGlu: 1.305 ± 0.062
0.895MetPhe: 0.895 ± 0.05
0.855MetGly: 0.855 ± 0.08
0.466MetHis: 0.466 ± 0.033
2.218MetIle: 2.218 ± 0.092
1.599MetLys: 1.599 ± 0.071
1.564MetLeu: 1.564 ± 0.073
0.54MetMet: 0.54 ± 0.039
2.157MetAsn: 2.157 ± 0.107
0.648MetPro: 0.648 ± 0.046
0.627MetGln: 0.627 ± 0.052
0.678MetArg: 0.678 ± 0.041
2.07MetSer: 2.07 ± 0.081
1.45MetThr: 1.45 ± 0.072
0.913MetVal: 0.913 ± 0.053
0.172MetTrp: 0.172 ± 0.02
1.207MetTyr: 1.207 ± 0.059
0.0MetXaa: 0.0 ± 0.0
Asn
2.485AsnAla: 2.485 ± 0.08
1.72AsnCys: 1.72 ± 0.103
6.286AsnAsp: 6.286 ± 0.233
4.227AsnGlu: 4.227 ± 0.145
3.999AsnPhe: 3.999 ± 0.124
4.219AsnGly: 4.219 ± 0.198
2.146AsnHis: 2.146 ± 0.088
13.522AsnIle: 13.522 ± 0.285
8.951AsnLys: 8.951 ± 0.201
7.289AsnLeu: 7.289 ± 0.16
2.414AsnMet: 2.414 ± 0.106
12.304AsnAsn: 12.304 ± 0.47
2.596AsnPro: 2.596 ± 0.115
4.221AsnGln: 4.221 ± 0.236
2.657AsnArg: 2.657 ± 0.101
6.439AsnSer: 6.439 ± 0.244
4.648AsnThr: 4.648 ± 0.135
3.861AsnVal: 3.861 ± 0.104
0.799AsnTrp: 0.799 ± 0.068
5.46AsnTyr: 5.46 ± 0.139
0.0AsnXaa: 0.0 ± 0.0
Pro
1.048ProAla: 1.048 ± 0.089
0.625ProCys: 0.625 ± 0.095
2.202ProAsp: 2.202 ± 0.083
2.001ProGlu: 2.001 ± 0.086
1.27ProPhe: 1.27 ± 0.069
1.331ProGly: 1.331 ± 0.08
0.564ProHis: 0.564 ± 0.038
3.353ProIle: 3.353 ± 0.113
2.684ProLys: 2.684 ± 0.088
1.887ProLeu: 1.887 ± 0.074
0.556ProMet: 0.556 ± 0.046
4.256ProAsn: 4.256 ± 0.223
0.94ProPro: 0.94 ± 0.085
0.855ProGln: 0.855 ± 0.061
0.765ProArg: 0.765 ± 0.048
1.821ProSer: 1.821 ± 0.085
1.514ProThr: 1.514 ± 0.069
1.662ProVal: 1.662 ± 0.107
0.198ProTrp: 0.198 ± 0.028
1.501ProTyr: 1.501 ± 0.076
0.0ProXaa: 0.0 ± 0.0
Gln
0.895GlnAla: 0.895 ± 0.058
0.574GlnCys: 0.574 ± 0.049
2.136GlnAsp: 2.136 ± 0.097
1.757GlnGlu: 1.757 ± 0.076
1.21GlnPhe: 1.21 ± 0.069
1.069GlnGly: 1.069 ± 0.076
0.617GlnHis: 0.617 ± 0.041
3.306GlnIle: 3.306 ± 0.105
2.745GlnLys: 2.745 ± 0.107
2.631GlnLeu: 2.631 ± 0.087
0.786GlnMet: 0.786 ± 0.06
3.544GlnAsn: 3.544 ± 0.147
0.979GlnPro: 0.979 ± 0.067
1.416GlnGln: 1.416 ± 0.12
0.887GlnArg: 0.887 ± 0.059
2.157GlnSer: 2.157 ± 0.094
1.286GlnThr: 1.286 ± 0.07
1.175GlnVal: 1.175 ± 0.063
0.259GlnTrp: 0.259 ± 0.025
2.078GlnTyr: 2.078 ± 0.086
0.0GlnXaa: 0.0 ± 0.0
Arg
1.0ArgAla: 1.0 ± 0.06
0.675ArgCys: 0.675 ± 0.044
1.9ArgAsp: 1.9 ± 0.081
1.789ArgGlu: 1.789 ± 0.081
1.509ArgPhe: 1.509 ± 0.076
1.458ArgGly: 1.458 ± 0.077
0.662ArgHis: 0.662 ± 0.043
2.745ArgIle: 2.745 ± 0.092
2.39ArgLys: 2.39 ± 0.085
2.313ArgLeu: 2.313 ± 0.084
0.537ArgMet: 0.537 ± 0.046
2.636ArgAsn: 2.636 ± 0.091
0.871ArgPro: 0.871 ± 0.055
1.043ArgGln: 1.043 ± 0.052
1.067ArgArg: 1.067 ± 0.062
1.94ArgSer: 1.94 ± 0.124
1.262ArgThr: 1.262 ± 0.065
1.281ArgVal: 1.281 ± 0.053
0.204ArgTrp: 0.204 ± 0.026
1.739ArgTyr: 1.739 ± 0.07
0.0ArgXaa: 0.0 ± 0.0
Ser
2.16SerAla: 2.16 ± 0.118
1.265SerCys: 1.265 ± 0.062
5.246SerAsp: 5.246 ± 0.188
3.888SerGlu: 3.888 ± 0.163
2.448SerPhe: 2.448 ± 0.082
3.962SerGly: 3.962 ± 0.218
1.31SerHis: 1.31 ± 0.063
6.498SerIle: 6.498 ± 0.187
6.368SerLys: 6.368 ± 0.183
4.333SerLeu: 4.333 ± 0.119
1.466SerMet: 1.466 ± 0.064
6.498SerAsn: 6.498 ± 0.195
1.734SerPro: 1.734 ± 0.078
2.356SerGln: 2.356 ± 0.08
2.284SerArg: 2.284 ± 0.104
4.624SerSer: 4.624 ± 0.179
3.232SerThr: 3.232 ± 0.125
4.092SerVal: 4.092 ± 0.199
0.537SerTrp: 0.537 ± 0.036
3.054SerTyr: 3.054 ± 0.098
0.0SerXaa: 0.0 ± 0.0
Thr
1.607ThrAla: 1.607 ± 0.08
0.977ThrCys: 0.977 ± 0.056
3.017ThrAsp: 3.017 ± 0.09
2.318ThrGlu: 2.318 ± 0.079
2.689ThrPhe: 2.689 ± 0.171
2.477ThrGly: 2.477 ± 0.145
2.446ThrHis: 2.446 ± 0.236
5.497ThrIle: 5.497 ± 0.152
4.221ThrLys: 4.221 ± 0.14
3.295ThrLeu: 3.295 ± 0.104
1.019ThrMet: 1.019 ± 0.06
5.018ThrAsn: 5.018 ± 0.144
1.691ThrPro: 1.691 ± 0.108
1.466ThrGln: 1.466 ± 0.076
1.588ThrArg: 1.588 ± 0.071
3.359ThrSer: 3.359 ± 0.105
2.628ThrThr: 2.628 ± 0.128
1.98ThrVal: 1.98 ± 0.092
0.426ThrTrp: 0.426 ± 0.034
2.501ThrTyr: 2.501 ± 0.089
0.0ThrXaa: 0.0 ± 0.0
Val
1.479ValAla: 1.479 ± 0.066
0.791ValCys: 0.791 ± 0.05
2.956ValAsp: 2.956 ± 0.093
2.369ValGlu: 2.369 ± 0.095
1.8ValPhe: 1.8 ± 0.083
1.62ValGly: 1.62 ± 0.095
0.728ValHis: 0.728 ± 0.047
4.153ValIle: 4.153 ± 0.134
4.155ValLys: 4.155 ± 0.109
3.139ValLeu: 3.139 ± 0.107
0.865ValMet: 0.865 ± 0.048
3.578ValAsn: 3.578 ± 0.099
1.493ValPro: 1.493 ± 0.067
1.188ValGln: 1.188 ± 0.069
1.231ValArg: 1.231 ± 0.058
3.015ValSer: 3.015 ± 0.105
3.467ValThr: 3.467 ± 0.225
2.16ValVal: 2.16 ± 0.084
0.363ValTrp: 0.363 ± 0.033
2.228ValTyr: 2.228 ± 0.082
0.0ValXaa: 0.0 ± 0.0
Trp
0.296TrpAla: 0.296 ± 0.031
0.222TrpCys: 0.222 ± 0.026
0.384TrpAsp: 0.384 ± 0.033
0.286TrpGlu: 0.286 ± 0.032
0.445TrpPhe: 0.445 ± 0.035
0.228TrpGly: 0.228 ± 0.031
0.161TrpHis: 0.161 ± 0.02
1.008TrpIle: 1.008 ± 0.06
0.754TrpLys: 0.754 ± 0.053
0.614TrpLeu: 0.614 ± 0.053
0.154TrpMet: 0.154 ± 0.022
0.884TrpAsn: 0.884 ± 0.058
0.143TrpPro: 0.143 ± 0.025
0.222TrpGln: 0.222 ± 0.026
0.286TrpArg: 0.286 ± 0.032
0.556TrpSer: 0.556 ± 0.042
0.461TrpThr: 0.461 ± 0.038
0.286TrpVal: 0.286 ± 0.031
0.413TrpTrp: 0.413 ± 0.085
0.553TrpTyr: 0.553 ± 0.053
0.0TrpXaa: 0.0 ± 0.0
Tyr
1.797TyrAla: 1.797 ± 0.068
1.186TyrCys: 1.186 ± 0.063
4.208TyrAsp: 4.208 ± 0.117
2.649TyrGlu: 2.649 ± 0.101
3.208TyrPhe: 3.208 ± 0.11
2.827TyrGly: 2.827 ± 0.107
1.662TyrHis: 1.662 ± 0.071
5.553TyrIle: 5.553 ± 0.137
4.012TyrLys: 4.012 ± 0.119
5.764TyrLeu: 5.764 ± 0.17
1.22TyrMet: 1.22 ± 0.058
4.986TyrAsn: 4.986 ± 0.146
1.652TyrPro: 1.652 ± 0.08
2.239TyrGln: 2.239 ± 0.077
1.847TyrArg: 1.847 ± 0.081
3.745TyrSer: 3.745 ± 0.128
2.803TyrThr: 2.803 ± 0.091
2.541TyrVal: 2.541 ± 0.081
0.453TyrTrp: 0.453 ± 0.036
3.634TyrTyr: 3.634 ± 0.114
0.0TyrXaa: 0.0 ± 0.0
Xaa
0.0XaaAla: 0.0 ± 0.0
0.0XaaCys: 0.0 ± 0.0
0.003XaaAsp: 0.003 ± 0.002
0.0XaaGlu: 0.0 ± 0.0
0.0XaaPhe: 0.0 ± 0.0
0.003XaaGly: 0.003 ± 0.003
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
0.159XaaXaa: 0.159 ± 0.108
Statistics based on 1120 proteins (377837 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