Amino acid dipepetide frequency for Spiroplasma endosymbiont of Megaselia nigra

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
2.784AlaAla: 2.784 ± 0.108
0.625AlaCys: 0.625 ± 0.037
2.338AlaAsp: 2.338 ± 0.084
2.704AlaGlu: 2.704 ± 0.102
2.059AlaPhe: 2.059 ± 0.075
2.861AlaGly: 2.861 ± 0.101
0.719AlaHis: 0.719 ± 0.05
4.971AlaIle: 4.971 ± 0.134
4.528AlaLys: 4.528 ± 0.114
4.534AlaLeu: 4.534 ± 0.122
1.204AlaMet: 1.204 ± 0.063
3.568AlaAsn: 3.568 ± 0.114
1.4AlaPro: 1.4 ± 0.069
1.917AlaGln: 1.917 ± 0.078
1.792AlaArg: 1.792 ± 0.071
2.983AlaSer: 2.983 ± 0.104
3.116AlaThr: 3.116 ± 0.09
3.207AlaVal: 3.207 ± 0.094
0.494AlaTrp: 0.494 ± 0.039
2.133AlaTyr: 2.133 ± 0.088
0.0AlaXaa: 0.0 ± 0.0
Cys
0.318CysAla: 0.318 ± 0.031
0.06CysCys: 0.06 ± 0.013
0.418CysAsp: 0.418 ± 0.032
0.423CysGlu: 0.423 ± 0.037
0.463CysPhe: 0.463 ± 0.037
0.403CysGly: 0.403 ± 0.037
0.179CysHis: 0.179 ± 0.024
0.517CysIle: 0.517 ± 0.042
0.639CysLys: 0.639 ± 0.042
0.71CysLeu: 0.71 ± 0.047
0.071CysMet: 0.071 ± 0.014
0.588CysAsn: 0.588 ± 0.05
0.176CysPro: 0.176 ± 0.022
0.284CysGln: 0.284 ± 0.031
0.193CysArg: 0.193 ± 0.024
0.457CysSer: 0.457 ± 0.036
0.253CysThr: 0.253 ± 0.023
0.304CysVal: 0.304 ± 0.031
0.168CysTrp: 0.168 ± 0.018
0.389CysTyr: 0.389 ± 0.034
0.0CysXaa: 0.0 ± 0.0
Asp
2.108AspAla: 2.108 ± 0.075
0.31AspCys: 0.31 ± 0.031
2.608AspAsp: 2.608 ± 0.091
3.713AspGlu: 3.713 ± 0.122
2.909AspPhe: 2.909 ± 0.088
2.648AspGly: 2.648 ± 0.092
0.659AspHis: 0.659 ± 0.048
5.25AspIle: 5.25 ± 0.125
4.883AspLys: 4.883 ± 0.129
5.139AspLeu: 5.139 ± 0.121
0.954AspMet: 0.954 ± 0.046
4.636AspAsn: 4.636 ± 0.129
1.77AspPro: 1.77 ± 0.068
1.588AspGln: 1.588 ± 0.079
1.256AspArg: 1.256 ± 0.056
2.693AspSer: 2.693 ± 0.1
2.366AspThr: 2.366 ± 0.07
2.858AspVal: 2.858 ± 0.1
0.761AspTrp: 0.761 ± 0.044
2.736AspTyr: 2.736 ± 0.074
0.0AspXaa: 0.0 ± 0.0
Glu
2.594GluAla: 2.594 ± 0.099
0.403GluCys: 0.403 ± 0.027
2.701GluAsp: 2.701 ± 0.083
4.022GluGlu: 4.022 ± 0.125
2.585GluPhe: 2.585 ± 0.085
2.244GluGly: 2.244 ± 0.09
1.108GluHis: 1.108 ± 0.062
6.982GluIle: 6.982 ± 0.153
6.451GluLys: 6.451 ± 0.134
6.275GluLeu: 6.275 ± 0.145
1.338GluMet: 1.338 ± 0.066
4.698GluAsn: 4.698 ± 0.147
1.54GluPro: 1.54 ± 0.067
3.474GluGln: 3.474 ± 0.115
2.128GluArg: 2.128 ± 0.085
2.068GluSer: 2.068 ± 0.08
3.647GluThr: 3.647 ± 0.102
3.182GluVal: 3.182 ± 0.114
0.747GluTrp: 0.747 ± 0.045
2.971GluTyr: 2.971 ± 0.099
0.0GluXaa: 0.0 ± 0.0
Phe
2.73PheAla: 2.73 ± 0.095
0.42PheCys: 0.42 ± 0.036
2.676PheAsp: 2.676 ± 0.089
2.653PheGlu: 2.653 ± 0.085
2.273PhePhe: 2.273 ± 0.104
2.736PheGly: 2.736 ± 0.101
0.628PheHis: 0.628 ± 0.042
4.71PheIle: 4.71 ± 0.142
4.548PheLys: 4.548 ± 0.137
4.517PheLeu: 4.517 ± 0.143
0.881PheMet: 0.881 ± 0.053
4.23PheAsn: 4.23 ± 0.118
1.074PhePro: 1.074 ± 0.053
1.523PheGln: 1.523 ± 0.066
1.383PheArg: 1.383 ± 0.067
3.13PheSer: 3.13 ± 0.101
2.9PheThr: 2.9 ± 0.095
2.565PheVal: 2.565 ± 0.095
0.543PheTrp: 0.543 ± 0.038
2.142PheTyr: 2.142 ± 0.075
0.0PheXaa: 0.0 ± 0.0
Gly
2.866GlyAla: 2.866 ± 0.106
0.304GlyCys: 0.304 ± 0.03
2.216GlyAsp: 2.216 ± 0.085
2.594GlyGlu: 2.594 ± 0.094
2.392GlyPhe: 2.392 ± 0.083
2.738GlyGly: 2.738 ± 0.12
0.778GlyHis: 0.778 ± 0.053
5.25GlyIle: 5.25 ± 0.121
4.468GlyLys: 4.468 ± 0.117
4.343GlyLeu: 4.343 ± 0.118
1.114GlyMet: 1.114 ± 0.046
2.932GlyAsn: 2.932 ± 0.092
0.991GlyPro: 0.991 ± 0.049
2.0GlyGln: 2.0 ± 0.084
1.497GlyArg: 1.497 ± 0.07
2.781GlySer: 2.781 ± 0.097
3.176GlyThr: 3.176 ± 0.088
3.25GlyVal: 3.25 ± 0.105
0.591GlyTrp: 0.591 ± 0.042
2.457GlyTyr: 2.457 ± 0.088
0.0GlyXaa: 0.0 ± 0.0
His
0.67HisAla: 0.67 ± 0.041
0.193HisCys: 0.193 ± 0.025
0.847HisAsp: 0.847 ± 0.054
0.744HisGlu: 0.744 ± 0.039
0.855HisPhe: 0.855 ± 0.051
0.719HisGly: 0.719 ± 0.041
0.415HisHis: 0.415 ± 0.037
1.091HisIle: 1.091 ± 0.059
1.082HisLys: 1.082 ± 0.053
1.665HisLeu: 1.665 ± 0.086
0.21HisMet: 0.21 ± 0.028
1.077HisAsn: 1.077 ± 0.057
0.508HisPro: 0.508 ± 0.042
0.829HisGln: 0.829 ± 0.055
0.54HisArg: 0.54 ± 0.039
0.875HisSer: 0.875 ± 0.062
0.724HisThr: 0.724 ± 0.045
0.753HisVal: 0.753 ± 0.043
0.23HisTrp: 0.23 ± 0.023
0.719HisTyr: 0.719 ± 0.047
0.0HisXaa: 0.0 ± 0.0
Ile
5.392IleAla: 5.392 ± 0.138
0.827IleCys: 0.827 ± 0.051
5.707IleAsp: 5.707 ± 0.144
5.857IleGlu: 5.857 ± 0.124
4.539IlePhe: 4.539 ± 0.14
4.562IleGly: 4.562 ± 0.137
1.233IleHis: 1.233 ± 0.056
9.957IleIle: 9.957 ± 0.234
9.948IleLys: 9.948 ± 0.178
8.275IleLeu: 8.275 ± 0.189
1.895IleMet: 1.895 ± 0.075
9.363IleAsn: 9.363 ± 0.191
3.153IlePro: 3.153 ± 0.097
2.804IleGln: 2.804 ± 0.096
2.75IleArg: 2.75 ± 0.086
6.38IleSer: 6.38 ± 0.139
6.136IleThr: 6.136 ± 0.146
5.179IleVal: 5.179 ± 0.112
0.986IleTrp: 0.986 ± 0.051
3.98IleTyr: 3.98 ± 0.118
0.0IleXaa: 0.0 ± 0.0
Lys
4.133LysAla: 4.133 ± 0.137
0.531LysCys: 0.531 ± 0.042
4.818LysAsp: 4.818 ± 0.132
6.553LysGlu: 6.553 ± 0.173
3.48LysPhe: 3.48 ± 0.094
3.792LysGly: 3.792 ± 0.113
1.312LysHis: 1.312 ± 0.057
10.635LysIle: 10.635 ± 0.204
9.266LysLys: 9.266 ± 0.18
8.607LysLeu: 8.607 ± 0.165
2.608LysMet: 2.608 ± 0.082
8.067LysAsn: 8.067 ± 0.164
2.659LysPro: 2.659 ± 0.089
4.113LysGln: 4.113 ± 0.114
2.863LysArg: 2.863 ± 0.097
4.122LysSer: 4.122 ± 0.118
6.241LysThr: 6.241 ± 0.145
5.272LysVal: 5.272 ± 0.141
1.224LysTrp: 1.224 ± 0.069
4.502LysTyr: 4.502 ± 0.113
0.0LysXaa: 0.0 ± 0.0
Leu
5.38LeuAla: 5.38 ± 0.17
0.534LeuCys: 0.534 ± 0.039
4.596LeuAsp: 4.596 ± 0.104
5.943LeuGlu: 5.943 ± 0.155
4.395LeuPhe: 4.395 ± 0.155
4.451LeuGly: 4.451 ± 0.127
1.168LeuHis: 1.168 ± 0.057
8.619LeuIle: 8.619 ± 0.205
8.914LeuLys: 8.914 ± 0.171
9.195LeuLeu: 9.195 ± 0.201
1.713LeuMet: 1.713 ± 0.072
7.514LeuAsn: 7.514 ± 0.15
3.261LeuPro: 3.261 ± 0.102
3.696LeuGln: 3.696 ± 0.111
2.889LeuArg: 2.889 ± 0.081
6.028LeuSer: 6.028 ± 0.158
6.238LeuThr: 6.238 ± 0.138
5.142LeuVal: 5.142 ± 0.136
0.969LeuTrp: 0.969 ± 0.054
3.332LeuTyr: 3.332 ± 0.106
0.0LeuXaa: 0.0 ± 0.0
Met
1.341MetAla: 1.341 ± 0.059
0.128MetCys: 0.128 ± 0.018
0.727MetAsp: 0.727 ± 0.047
1.082MetGlu: 1.082 ± 0.062
1.065MetPhe: 1.065 ± 0.049
1.247MetGly: 1.247 ± 0.067
0.278MetHis: 0.278 ± 0.026
1.949MetIle: 1.949 ± 0.067
1.764MetLys: 1.764 ± 0.073
2.082MetLeu: 2.082 ± 0.092
0.446MetMet: 0.446 ± 0.039
1.264MetAsn: 1.264 ± 0.051
0.847MetPro: 0.847 ± 0.051
0.892MetGln: 0.892 ± 0.05
0.673MetArg: 0.673 ± 0.043
0.983MetSer: 0.983 ± 0.056
1.227MetThr: 1.227 ± 0.05
1.142MetVal: 1.142 ± 0.064
0.148MetTrp: 0.148 ± 0.019
0.625MetTyr: 0.625 ± 0.038
0.0MetXaa: 0.0 ± 0.0
Asn
3.096AsnAla: 3.096 ± 0.088
0.469AsnCys: 0.469 ± 0.036
4.562AsnAsp: 4.562 ± 0.124
5.159AsnGlu: 5.159 ± 0.132
4.122AsnPhe: 4.122 ± 0.142
3.537AsnGly: 3.537 ± 0.104
1.125AsnHis: 1.125 ± 0.068
7.971AsnIle: 7.971 ± 0.177
8.391AsnLys: 8.391 ± 0.175
7.528AsnLeu: 7.528 ± 0.151
1.392AsnMet: 1.392 ± 0.071
8.508AsnAsn: 8.508 ± 0.259
2.88AsnPro: 2.88 ± 0.087
3.21AsnGln: 3.21 ± 0.094
2.25AsnArg: 2.25 ± 0.078
4.539AsnSer: 4.539 ± 0.141
3.602AsnThr: 3.602 ± 0.099
3.829AsnVal: 3.829 ± 0.099
1.116AsnTrp: 1.116 ± 0.06
4.36AsnTyr: 4.36 ± 0.135
0.0AsnXaa: 0.0 ± 0.0
Pro
1.457ProAla: 1.457 ± 0.063
0.128ProCys: 0.128 ± 0.02
1.633ProAsp: 1.633 ± 0.071
1.818ProGlu: 1.818 ± 0.073
1.693ProPhe: 1.693 ± 0.071
1.236ProGly: 1.236 ± 0.067
0.534ProHis: 0.534 ± 0.044
3.122ProIle: 3.122 ± 0.104
2.261ProLys: 2.261 ± 0.075
2.665ProLeu: 2.665 ± 0.084
0.52ProMet: 0.52 ± 0.038
2.349ProAsn: 2.349 ± 0.09
0.864ProPro: 0.864 ± 0.051
1.233ProGln: 1.233 ± 0.065
0.795ProArg: 0.795 ± 0.052
1.917ProSer: 1.917 ± 0.077
2.574ProThr: 2.574 ± 0.087
1.983ProVal: 1.983 ± 0.078
0.412ProTrp: 0.412 ± 0.033
1.44ProTyr: 1.44 ± 0.07
0.0ProXaa: 0.0 ± 0.0
Gln
2.077GlnAla: 2.077 ± 0.08
0.182GlnCys: 0.182 ± 0.021
1.713GlnAsp: 1.713 ± 0.057
2.77GlnGlu: 2.77 ± 0.09
1.773GlnPhe: 1.773 ± 0.076
1.687GlnGly: 1.687 ± 0.073
0.608GlnHis: 0.608 ± 0.045
3.863GlnIle: 3.863 ± 0.109
4.258GlnLys: 4.258 ± 0.112
3.991GlnLeu: 3.991 ± 0.114
0.716GlnMet: 0.716 ± 0.054
2.946GlnAsn: 2.946 ± 0.117
1.031GlnPro: 1.031 ± 0.066
2.432GlnGln: 2.432 ± 0.113
1.168GlnArg: 1.168 ± 0.057
1.645GlnSer: 1.645 ± 0.076
2.523GlnThr: 2.523 ± 0.093
2.071GlnVal: 2.071 ± 0.097
0.648GlnTrp: 0.648 ± 0.042
1.849GlnTyr: 1.849 ± 0.074
0.0GlnXaa: 0.0 ± 0.0
Arg
1.523ArgAla: 1.523 ± 0.063
0.159ArgCys: 0.159 ± 0.021
1.56ArgAsp: 1.56 ± 0.076
2.065ArgGlu: 2.065 ± 0.082
1.406ArgPhe: 1.406 ± 0.063
1.633ArgGly: 1.633 ± 0.067
0.543ArgHis: 0.543 ± 0.039
2.889ArgIle: 2.889 ± 0.088
2.841ArgLys: 2.841 ± 0.075
2.52ArgLeu: 2.52 ± 0.095
0.614ArgMet: 0.614 ± 0.047
2.011ArgAsn: 2.011 ± 0.08
0.952ArgPro: 0.952 ± 0.052
1.437ArgGln: 1.437 ± 0.067
1.264ArgArg: 1.264 ± 0.075
1.332ArgSer: 1.332 ± 0.067
1.608ArgThr: 1.608 ± 0.069
1.781ArgVal: 1.781 ± 0.07
0.429ArgTrp: 0.429 ± 0.039
1.554ArgTyr: 1.554 ± 0.069
0.0ArgXaa: 0.0 ± 0.0
Ser
2.764SerAla: 2.764 ± 0.093
0.449SerCys: 0.449 ± 0.036
3.025SerAsp: 3.025 ± 0.082
3.281SerGlu: 3.281 ± 0.097
3.048SerPhe: 3.048 ± 0.104
3.221SerGly: 3.221 ± 0.1
0.815SerHis: 0.815 ± 0.052
4.889SerIle: 4.889 ± 0.115
5.19SerLys: 5.19 ± 0.131
5.556SerLeu: 5.556 ± 0.141
1.071SerMet: 1.071 ± 0.056
4.389SerAsn: 4.389 ± 0.125
1.56SerPro: 1.56 ± 0.065
2.037SerGln: 2.037 ± 0.083
1.426SerArg: 1.426 ± 0.069
3.622SerSer: 3.622 ± 0.135
3.065SerThr: 3.065 ± 0.091
2.98SerVal: 2.98 ± 0.093
0.696SerTrp: 0.696 ± 0.042
2.844SerTyr: 2.844 ± 0.092
0.0SerXaa: 0.0 ± 0.0
Thr
3.162ThrAla: 3.162 ± 0.112
0.321ThrCys: 0.321 ± 0.033
2.895ThrAsp: 2.895 ± 0.1
3.111ThrGlu: 3.111 ± 0.085
2.937ThrPhe: 2.937 ± 0.094
3.267ThrGly: 3.267 ± 0.098
0.864ThrHis: 0.864 ± 0.05
6.477ThrIle: 6.477 ± 0.153
5.4ThrLys: 5.4 ± 0.125
5.446ThrLeu: 5.446 ± 0.143
1.099ThrMet: 1.099 ± 0.05
4.94ThrAsn: 4.94 ± 0.123
2.301ThrPro: 2.301 ± 0.078
1.699ThrGln: 1.699 ± 0.075
1.551ThrArg: 1.551 ± 0.06
3.568ThrSer: 3.568 ± 0.111
4.082ThrThr: 4.082 ± 0.11
3.227ThrVal: 3.227 ± 0.093
0.659ThrTrp: 0.659 ± 0.041
2.358ThrTyr: 2.358 ± 0.071
0.0ThrXaa: 0.0 ± 0.0
Val
2.977ValAla: 2.977 ± 0.088
0.455ValCys: 0.455 ± 0.035
3.074ValAsp: 3.074 ± 0.09
3.221ValGlu: 3.221 ± 0.112
2.594ValPhe: 2.594 ± 0.089
3.037ValGly: 3.037 ± 0.103
0.676ValHis: 0.676 ± 0.046
5.36ValIle: 5.36 ± 0.137
5.167ValLys: 5.167 ± 0.118
5.312ValLeu: 5.312 ± 0.126
1.02ValMet: 1.02 ± 0.056
3.704ValAsn: 3.704 ± 0.1
1.875ValPro: 1.875 ± 0.078
1.77ValGln: 1.77 ± 0.074
1.707ValArg: 1.707 ± 0.076
3.267ValSer: 3.267 ± 0.09
3.139ValThr: 3.139 ± 0.098
3.562ValVal: 3.562 ± 0.118
0.821ValTrp: 0.821 ± 0.05
2.082ValTyr: 2.082 ± 0.072
0.0ValXaa: 0.0 ± 0.0
Trp
0.446TrpAla: 0.446 ± 0.035
0.068TrpCys: 0.068 ± 0.013
0.648TrpAsp: 0.648 ± 0.042
0.753TrpGlu: 0.753 ± 0.05
0.651TrpPhe: 0.651 ± 0.042
0.619TrpGly: 0.619 ± 0.038
0.153TrpHis: 0.153 ± 0.025
1.139TrpIle: 1.139 ± 0.055
1.293TrpLys: 1.293 ± 0.071
1.199TrpLeu: 1.199 ± 0.067
0.318TrpMet: 0.318 ± 0.027
1.105TrpAsn: 1.105 ± 0.047
0.383TrpPro: 0.383 ± 0.029
0.582TrpGln: 0.582 ± 0.043
0.443TrpArg: 0.443 ± 0.038
0.639TrpSer: 0.639 ± 0.045
0.67TrpThr: 0.67 ± 0.045
0.455TrpVal: 0.455 ± 0.037
0.19TrpTrp: 0.19 ± 0.023
0.795TrpTyr: 0.795 ± 0.044
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.122TyrAla: 2.122 ± 0.077
0.449TyrCys: 0.449 ± 0.034
3.082TyrAsp: 3.082 ± 0.104
2.693TyrGlu: 2.693 ± 0.096
3.022TyrPhe: 3.022 ± 0.097
2.099TyrGly: 2.099 ± 0.07
0.952TyrHis: 0.952 ± 0.052
3.281TyrIle: 3.281 ± 0.112
3.511TyrLys: 3.511 ± 0.104
4.417TyrLeu: 4.417 ± 0.123
0.724TyrMet: 0.724 ± 0.045
3.758TyrAsn: 3.758 ± 0.116
1.409TyrPro: 1.409 ± 0.066
2.429TyrGln: 2.429 ± 0.1
1.551TyrArg: 1.551 ± 0.063
2.897TyrSer: 2.897 ± 0.101
2.074TyrThr: 2.074 ± 0.079
2.079TyrVal: 2.079 ± 0.072
0.719TyrTrp: 0.719 ± 0.051
2.42TyrTyr: 2.42 ± 0.097
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 1263 proteins (352031 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