Amino acid dipepetide frequency for Mycoplasma penetrans (strain HF-2)

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
2.824AlaAla: 2.824 ± 0.109
0.375AlaCys: 0.375 ± 0.029
2.353AlaAsp: 2.353 ± 0.087
1.956AlaGlu: 1.956 ± 0.078
2.268AlaPhe: 2.268 ± 0.085
2.391AlaGly: 2.391 ± 0.091
0.52AlaHis: 0.52 ± 0.037
4.639AlaIle: 4.639 ± 0.116
4.01AlaLys: 4.01 ± 0.125
4.521AlaLeu: 4.521 ± 0.136
0.945AlaMet: 0.945 ± 0.05
3.965AlaAsn: 3.965 ± 0.105
1.031AlaPro: 1.031 ± 0.061
1.395AlaGln: 1.395 ± 0.056
1.114AlaArg: 1.114 ± 0.056
3.945AlaSer: 3.945 ± 0.126
3.658AlaThr: 3.658 ± 0.122
2.768AlaVal: 2.768 ± 0.109
0.48AlaTrp: 0.48 ± 0.033
1.951AlaTyr: 1.951 ± 0.069
0.0AlaXaa: 0.0 ± 0.0
Cys
0.309CysAla: 0.309 ± 0.028
0.101CysCys: 0.101 ± 0.028
0.39CysAsp: 0.39 ± 0.032
0.443CysGlu: 0.443 ± 0.037
0.523CysPhe: 0.523 ± 0.039
0.443CysGly: 0.443 ± 0.037
0.126CysHis: 0.126 ± 0.02
0.541CysIle: 0.541 ± 0.041
0.714CysLys: 0.714 ± 0.053
0.842CysLeu: 0.842 ± 0.054
0.128CysMet: 0.128 ± 0.018
0.443CysAsn: 0.443 ± 0.036
0.231CysPro: 0.231 ± 0.025
0.138CysGln: 0.138 ± 0.019
0.151CysArg: 0.151 ± 0.019
0.581CysSer: 0.581 ± 0.035
0.319CysThr: 0.319 ± 0.026
0.39CysVal: 0.39 ± 0.036
0.055CysTrp: 0.055 ± 0.013
0.309CysTyr: 0.309 ± 0.035
0.0CysXaa: 0.0 ± 0.0
Asp
2.648AspAla: 2.648 ± 0.089
0.362AspCys: 0.362 ± 0.033
3.256AspAsp: 3.256 ± 0.157
3.671AspGlu: 3.671 ± 0.167
3.829AspPhe: 3.829 ± 0.118
2.778AspGly: 2.778 ± 0.104
0.525AspHis: 0.525 ± 0.041
4.998AspIle: 4.998 ± 0.125
4.875AspLys: 4.875 ± 0.134
6.07AspLeu: 6.07 ± 0.144
0.835AspMet: 0.835 ± 0.05
4.184AspAsn: 4.184 ± 0.122
1.375AspPro: 1.375 ± 0.054
1.569AspGln: 1.569 ± 0.065
1.131AspArg: 1.131 ± 0.049
4.649AspSer: 4.649 ± 0.156
2.633AspThr: 2.633 ± 0.081
3.399AspVal: 3.399 ± 0.105
0.576AspTrp: 0.576 ± 0.038
2.866AspTyr: 2.866 ± 0.096
0.0AspXaa: 0.0 ± 0.0
Glu
2.607GluAla: 2.607 ± 0.086
0.36GluCys: 0.36 ± 0.035
3.266GluAsp: 3.266 ± 0.167
4.269GluGlu: 4.269 ± 0.246
2.954GluPhe: 2.954 ± 0.095
2.049GluGly: 2.049 ± 0.094
0.593GluHis: 0.593 ± 0.042
6.474GluIle: 6.474 ± 0.208
6.676GluLys: 6.676 ± 0.199
5.587GluLeu: 5.587 ± 0.195
1.184GluMet: 1.184 ± 0.066
5.67GluAsn: 5.67 ± 0.207
1.106GluPro: 1.106 ± 0.058
1.835GluGln: 1.835 ± 0.087
1.637GluArg: 1.637 ± 0.077
3.99GluSer: 3.99 ± 0.144
3.264GluThr: 3.264 ± 0.093
3.578GluVal: 3.578 ± 0.127
0.581GluTrp: 0.581 ± 0.043
2.643GluTyr: 2.643 ± 0.076
0.0GluXaa: 0.0 ± 0.0
Phe
2.653PheAla: 2.653 ± 0.081
0.478PheCys: 0.478 ± 0.036
3.379PheAsp: 3.379 ± 0.107
3.226PheGlu: 3.226 ± 0.11
3.055PhePhe: 3.055 ± 0.113
2.733PheGly: 2.733 ± 0.089
0.563PheHis: 0.563 ± 0.035
4.591PheIle: 4.591 ± 0.136
4.704PheLys: 4.704 ± 0.104
5.134PheLeu: 5.134 ± 0.12
0.847PheMet: 0.847 ± 0.045
4.561PheAsn: 4.561 ± 0.141
1.154PhePro: 1.154 ± 0.052
1.38PheGln: 1.38 ± 0.06
1.079PheArg: 1.079 ± 0.05
4.571PheSer: 4.571 ± 0.121
3.135PheThr: 3.135 ± 0.1
3.291PheVal: 3.291 ± 0.091
0.503PheTrp: 0.503 ± 0.038
2.409PheTyr: 2.409 ± 0.084
0.0PheXaa: 0.0 ± 0.0
Gly
2.527GlyAla: 2.527 ± 0.109
0.324GlyCys: 0.324 ± 0.034
2.255GlyAsp: 2.255 ± 0.075
2.16GlyGlu: 2.16 ± 0.082
3.005GlyPhe: 3.005 ± 0.104
2.907GlyGly: 2.907 ± 0.128
0.631GlyHis: 0.631 ± 0.051
4.765GlyIle: 4.765 ± 0.145
3.578GlyLys: 3.578 ± 0.105
4.269GlyLeu: 4.269 ± 0.112
0.948GlyMet: 0.948 ± 0.053
3.485GlyAsn: 3.485 ± 0.112
0.88GlyPro: 0.88 ± 0.051
1.38GlyGln: 1.38 ± 0.059
1.081GlyArg: 1.081 ± 0.056
4.385GlySer: 4.385 ± 0.141
3.633GlyThr: 3.633 ± 0.139
3.027GlyVal: 3.027 ± 0.112
0.528GlyTrp: 0.528 ± 0.037
2.391GlyTyr: 2.391 ± 0.076
0.0GlyXaa: 0.0 ± 0.0
His
0.523HisAla: 0.523 ± 0.044
0.123HisCys: 0.123 ± 0.018
0.528HisAsp: 0.528 ± 0.042
0.578HisGlu: 0.578 ± 0.043
0.619HisPhe: 0.619 ± 0.039
0.583HisGly: 0.583 ± 0.041
0.224HisHis: 0.224 ± 0.022
0.933HisIle: 0.933 ± 0.049
0.988HisLys: 0.988 ± 0.049
1.104HisLeu: 1.104 ± 0.055
0.229HisMet: 0.229 ± 0.024
0.82HisAsn: 0.82 ± 0.047
0.4HisPro: 0.4 ± 0.037
0.352HisGln: 0.352 ± 0.029
0.329HisArg: 0.329 ± 0.031
0.822HisSer: 0.822 ± 0.043
0.508HisThr: 0.508 ± 0.037
0.684HisVal: 0.684 ± 0.044
0.123HisTrp: 0.123 ± 0.019
0.508HisTyr: 0.508 ± 0.036
0.0HisXaa: 0.0 ± 0.0
Ile
4.553IleAla: 4.553 ± 0.133
0.85IleCys: 0.85 ± 0.046
5.469IleAsp: 5.469 ± 0.136
5.748IleGlu: 5.748 ± 0.196
4.621IlePhe: 4.621 ± 0.153
4.32IleGly: 4.32 ± 0.124
1.048IleHis: 1.048 ± 0.056
7.236IleIle: 7.236 ± 0.176
9.376IleLys: 9.376 ± 0.215
7.427IleLeu: 7.427 ± 0.17
1.38IleMet: 1.38 ± 0.062
7.812IleAsn: 7.812 ± 0.166
2.836IlePro: 2.836 ± 0.091
2.268IleGln: 2.268 ± 0.08
2.27IleArg: 2.27 ± 0.082
7.458IleSer: 7.458 ± 0.177
5.232IleThr: 5.232 ± 0.152
5.24IleVal: 5.24 ± 0.147
0.661IleTrp: 0.661 ± 0.044
3.917IleTyr: 3.917 ± 0.097
0.0IleXaa: 0.0 ± 0.0
Lys
3.958LysAla: 3.958 ± 0.111
0.523LysCys: 0.523 ± 0.038
5.768LysAsp: 5.768 ± 0.15
7.742LysGlu: 7.742 ± 0.229
4.111LysPhe: 4.111 ± 0.124
3.168LysGly: 3.168 ± 0.101
1.116LysHis: 1.116 ± 0.052
9.557LysIle: 9.557 ± 0.223
10.181LysLys: 10.181 ± 0.23
7.52LysLeu: 7.52 ± 0.141
2.104LysMet: 2.104 ± 0.082
9.177LysAsn: 9.177 ± 0.217
2.396LysPro: 2.396 ± 0.11
2.874LysGln: 2.874 ± 0.093
2.555LysArg: 2.555 ± 0.091
6.153LysSer: 6.153 ± 0.12
6.067LysThr: 6.067 ± 0.148
5.001LysVal: 5.001 ± 0.13
0.885LysTrp: 0.885 ± 0.044
4.428LysTyr: 4.428 ± 0.122
0.0LysXaa: 0.0 ± 0.0
Leu
4.247LeuAla: 4.247 ± 0.115
0.563LeuCys: 0.563 ± 0.04
5.237LeuAsp: 5.237 ± 0.124
5.589LeuGlu: 5.589 ± 0.173
4.604LeuPhe: 4.604 ± 0.128
4.159LeuGly: 4.159 ± 0.115
1.001LeuHis: 1.001 ± 0.061
7.975LeuIle: 7.975 ± 0.175
9.414LeuLys: 9.414 ± 0.186
7.898LeuLeu: 7.898 ± 0.183
1.478LeuMet: 1.478 ± 0.066
7.953LeuAsn: 7.953 ± 0.167
2.374LeuPro: 2.374 ± 0.08
2.316LeuGln: 2.316 ± 0.072
1.991LeuArg: 1.991 ± 0.077
8.257LeuSer: 8.257 ± 0.163
5.3LeuThr: 5.3 ± 0.158
5.323LeuVal: 5.323 ± 0.136
0.717LeuTrp: 0.717 ± 0.049
3.213LeuTyr: 3.213 ± 0.096
0.0LeuXaa: 0.0 ± 0.0
Met
0.845MetAla: 0.845 ± 0.05
0.121MetCys: 0.121 ± 0.02
0.95MetAsp: 0.95 ± 0.054
0.883MetGlu: 0.883 ± 0.052
0.913MetPhe: 0.913 ± 0.052
1.008MetGly: 1.008 ± 0.051
0.214MetHis: 0.214 ± 0.025
1.491MetIle: 1.491 ± 0.066
1.934MetLys: 1.934 ± 0.075
1.471MetLeu: 1.471 ± 0.06
0.357MetMet: 0.357 ± 0.033
1.237MetAsn: 1.237 ± 0.052
0.525MetPro: 0.525 ± 0.036
0.528MetGln: 0.528 ± 0.038
0.443MetArg: 0.443 ± 0.035
1.441MetSer: 1.441 ± 0.069
0.862MetThr: 0.862 ± 0.042
1.136MetVal: 1.136 ± 0.062
0.141MetTrp: 0.141 ± 0.021
0.583MetTyr: 0.583 ± 0.04
0.0MetXaa: 0.0 ± 0.0
Asn
3.321AsnAla: 3.321 ± 0.106
0.508AsnCys: 0.508 ± 0.039
4.463AsnAsp: 4.463 ± 0.115
5.029AsnGlu: 5.029 ± 0.173
4.659AsnPhe: 4.659 ± 0.139
4.41AsnGly: 4.41 ± 0.127
0.955AsnHis: 0.955 ± 0.05
7.03AsnIle: 7.03 ± 0.139
9.285AsnLys: 9.285 ± 0.245
8.096AsnLeu: 8.096 ± 0.201
1.478AsnMet: 1.478 ± 0.061
8.853AsnAsn: 8.853 ± 0.23
2.668AsnPro: 2.668 ± 0.092
3.296AsnGln: 3.296 ± 0.104
1.823AsnArg: 1.823 ± 0.065
7.538AsnSer: 7.538 ± 0.234
4.521AsnThr: 4.521 ± 0.14
4.433AsnVal: 4.433 ± 0.109
0.973AsnTrp: 0.973 ± 0.05
4.199AsnTyr: 4.199 ± 0.139
0.0AsnXaa: 0.0 ± 0.0
Pro
1.109ProAla: 1.109 ± 0.053
0.166ProCys: 0.166 ± 0.022
1.126ProAsp: 1.126 ± 0.057
1.594ProGlu: 1.594 ± 0.079
1.463ProPhe: 1.463 ± 0.065
1.071ProGly: 1.071 ± 0.055
0.304ProHis: 0.304 ± 0.029
2.65ProIle: 2.65 ± 0.104
2.062ProLys: 2.062 ± 0.081
1.994ProLeu: 1.994 ± 0.07
0.425ProMet: 0.425 ± 0.034
2.26ProAsn: 2.26 ± 0.085
0.495ProPro: 0.495 ± 0.039
0.722ProGln: 0.722 ± 0.042
0.52ProArg: 0.52 ± 0.04
2.444ProSer: 2.444 ± 0.098
2.011ProThr: 2.011 ± 0.086
1.773ProVal: 1.773 ± 0.073
0.231ProTrp: 0.231 ± 0.026
1.242ProTyr: 1.242 ± 0.06
0.0ProXaa: 0.0 ± 0.0
Gln
1.312GlnAla: 1.312 ± 0.058
0.123GlnCys: 0.123 ± 0.02
1.514GlnAsp: 1.514 ± 0.063
1.916GlnGlu: 1.916 ± 0.08
1.416GlnPhe: 1.416 ± 0.057
1.23GlnGly: 1.23 ± 0.056
0.287GlnHis: 0.287 ± 0.026
2.942GlnIle: 2.942 ± 0.077
2.726GlnLys: 2.726 ± 0.092
2.781GlnLeu: 2.781 ± 0.086
0.528GlnMet: 0.528 ± 0.036
2.698GlnAsn: 2.698 ± 0.095
0.737GlnPro: 0.737 ± 0.046
1.121GlnGln: 1.121 ± 0.057
0.872GlnArg: 0.872 ± 0.045
2.054GlnSer: 2.054 ± 0.082
1.944GlnThr: 1.944 ± 0.078
1.599GlnVal: 1.599 ± 0.058
0.284GlnTrp: 0.284 ± 0.027
1.272GlnTyr: 1.272 ± 0.052
0.0GlnXaa: 0.0 ± 0.0
Arg
1.084ArgAla: 1.084 ± 0.06
0.204ArgCys: 0.204 ± 0.024
1.363ArgAsp: 1.363 ± 0.053
1.584ArgGlu: 1.584 ± 0.081
1.126ArgPhe: 1.126 ± 0.052
1.054ArgGly: 1.054 ± 0.062
0.299ArgHis: 0.299 ± 0.028
2.351ArgIle: 2.351 ± 0.09
2.499ArgLys: 2.499 ± 0.079
1.883ArgLeu: 1.883 ± 0.07
0.52ArgMet: 0.52 ± 0.036
2.125ArgAsn: 2.125 ± 0.073
0.661ArgPro: 0.661 ± 0.046
0.674ArgGln: 0.674 ± 0.038
0.948ArgArg: 0.948 ± 0.055
1.473ArgSer: 1.473 ± 0.063
1.365ArgThr: 1.365 ± 0.062
1.333ArgVal: 1.333 ± 0.067
0.289ArgTrp: 0.289 ± 0.026
1.031ArgTyr: 1.031 ± 0.049
0.0ArgXaa: 0.0 ± 0.0
Ser
3.885SerAla: 3.885 ± 0.129
0.611SerCys: 0.611 ± 0.043
4.672SerAsp: 4.672 ± 0.127
4.473SerGlu: 4.473 ± 0.144
4.843SerPhe: 4.843 ± 0.14
4.591SerGly: 4.591 ± 0.145
0.827SerHis: 0.827 ± 0.052
7.126SerIle: 7.126 ± 0.133
7.422SerLys: 7.422 ± 0.136
7.724SerLeu: 7.724 ± 0.175
1.124SerMet: 1.124 ± 0.058
7.671SerAsn: 7.671 ± 0.223
1.705SerPro: 1.705 ± 0.065
2.499SerGln: 2.499 ± 0.097
1.888SerArg: 1.888 ± 0.075
9.202SerSer: 9.202 ± 0.408
5.333SerThr: 5.333 ± 0.229
4.619SerVal: 4.619 ± 0.115
0.865SerTrp: 0.865 ± 0.048
3.661SerTyr: 3.661 ± 0.139
0.0SerXaa: 0.0 ± 0.0
Thr
3.14ThrAla: 3.14 ± 0.116
0.319ThrCys: 0.319 ± 0.03
3.314ThrAsp: 3.314 ± 0.114
2.859ThrGlu: 2.859 ± 0.105
3.161ThrPhe: 3.161 ± 0.093
3.548ThrGly: 3.548 ± 0.148
0.656ThrHis: 0.656 ± 0.043
5.25ThrIle: 5.25 ± 0.125
4.918ThrLys: 4.918 ± 0.109
4.9ThrLeu: 4.9 ± 0.12
0.807ThrMet: 0.807 ± 0.048
5.76ThrAsn: 5.76 ± 0.192
2.11ThrPro: 2.11 ± 0.075
1.695ThrGln: 1.695 ± 0.073
1.36ThrArg: 1.36 ± 0.06
5.499ThrSer: 5.499 ± 0.235
4.795ThrThr: 4.795 ± 0.21
3.824ThrVal: 3.824 ± 0.134
0.556ThrTrp: 0.556 ± 0.038
2.897ThrTyr: 2.897 ± 0.118
0.0ThrXaa: 0.0 ± 0.0
Val
3.269ValAla: 3.269 ± 0.123
0.568ValCys: 0.568 ± 0.043
3.505ValAsp: 3.505 ± 0.094
3.445ValGlu: 3.445 ± 0.117
2.914ValPhe: 2.914 ± 0.1
2.952ValGly: 2.952 ± 0.096
0.613ValHis: 0.613 ± 0.045
4.828ValIle: 4.828 ± 0.134
4.971ValLys: 4.971 ± 0.134
5.137ValLeu: 5.137 ± 0.136
0.89ValMet: 0.89 ± 0.051
4.657ValAsn: 4.657 ± 0.129
1.7ValPro: 1.7 ± 0.076
1.365ValGln: 1.365 ± 0.058
1.287ValArg: 1.287 ± 0.059
5.657ValSer: 5.657 ± 0.157
3.694ValThr: 3.694 ± 0.131
3.699ValVal: 3.699 ± 0.111
0.611ValTrp: 0.611 ± 0.039
2.479ValTyr: 2.479 ± 0.07
0.0ValXaa: 0.0 ± 0.0
Trp
0.445TrpAla: 0.445 ± 0.038
0.06TrpCys: 0.06 ± 0.013
0.548TrpAsp: 0.548 ± 0.042
0.571TrpGlu: 0.571 ± 0.038
0.578TrpPhe: 0.578 ± 0.042
0.412TrpGly: 0.412 ± 0.036
0.103TrpHis: 0.103 ± 0.017
0.968TrpIle: 0.968 ± 0.056
0.888TrpLys: 0.888 ± 0.043
0.817TrpLeu: 0.817 ± 0.046
0.196TrpMet: 0.196 ± 0.022
0.87TrpAsn: 0.87 ± 0.051
0.161TrpPro: 0.161 ± 0.018
0.244TrpGln: 0.244 ± 0.022
0.216TrpArg: 0.216 ± 0.026
0.752TrpSer: 0.752 ± 0.044
0.601TrpThr: 0.601 ± 0.04
0.548TrpVal: 0.548 ± 0.041
0.111TrpTrp: 0.111 ± 0.017
0.488TrpTyr: 0.488 ± 0.038
0.0TrpXaa: 0.0 ± 0.0
Tyr
1.853TyrAla: 1.853 ± 0.074
0.437TyrCys: 0.437 ± 0.038
2.874TyrAsp: 2.874 ± 0.101
2.59TyrGlu: 2.59 ± 0.084
2.786TyrPhe: 2.786 ± 0.091
2.353TyrGly: 2.353 ± 0.084
0.37TyrHis: 0.37 ± 0.03
3.379TyrIle: 3.379 ± 0.113
4.063TyrLys: 4.063 ± 0.1
4.433TyrLeu: 4.433 ± 0.127
0.674TyrMet: 0.674 ± 0.04
3.342TyrAsn: 3.342 ± 0.111
1.119TyrPro: 1.119 ± 0.065
1.702TyrGln: 1.702 ± 0.068
1.169TyrArg: 1.169 ± 0.049
3.87TyrSer: 3.87 ± 0.111
2.492TyrThr: 2.492 ± 0.11
2.575TyrVal: 2.575 ± 0.095
0.407TyrTrp: 0.407 ± 0.034
2.042TyrTyr: 2.042 ± 0.095
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 1028 proteins (397721 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