Amino acid dipepetide frequency for Orbus sp. IPMB12

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
6.958AlaAla: 6.958 ± 0.135
0.871AlaCys: 0.871 ± 0.04
4.218AlaAsp: 4.218 ± 0.114
4.884AlaGlu: 4.884 ± 0.087
3.108AlaPhe: 3.108 ± 0.075
5.915AlaGly: 5.915 ± 0.11
1.383AlaHis: 1.383 ± 0.049
6.354AlaIle: 6.354 ± 0.11
5.126AlaLys: 5.126 ± 0.095
8.402AlaLeu: 8.402 ± 0.125
2.184AlaMet: 2.184 ± 0.061
3.24AlaAsn: 3.24 ± 0.072
2.572AlaPro: 2.572 ± 0.058
3.388AlaGln: 3.388 ± 0.071
3.36AlaArg: 3.36 ± 0.082
4.663AlaSer: 4.663 ± 0.088
4.456AlaThr: 4.456 ± 0.114
5.395AlaVal: 5.395 ± 0.093
0.762AlaTrp: 0.762 ± 0.031
2.495AlaTyr: 2.495 ± 0.057
0.0AlaXaa: 0.0 ± 0.0
Cys
0.778CysAla: 0.778 ± 0.038
0.176CysCys: 0.176 ± 0.016
0.562CysAsp: 0.562 ± 0.027
0.542CysGlu: 0.542 ± 0.029
0.478CysPhe: 0.478 ± 0.023
0.871CysGly: 0.871 ± 0.036
0.281CysHis: 0.281 ± 0.022
0.677CysIle: 0.677 ± 0.036
0.425CysLys: 0.425 ± 0.021
0.995CysLeu: 0.995 ± 0.035
0.198CysMet: 0.198 ± 0.017
0.376CysAsn: 0.376 ± 0.022
0.437CysPro: 0.437 ± 0.028
0.528CysGln: 0.528 ± 0.028
0.449CysArg: 0.449 ± 0.025
0.664CysSer: 0.664 ± 0.027
0.447CysThr: 0.447 ± 0.022
0.664CysVal: 0.664 ± 0.033
0.137CysTrp: 0.137 ± 0.013
0.398CysTyr: 0.398 ± 0.022
0.0CysXaa: 0.0 ± 0.0
Asp
3.777AspAla: 3.777 ± 0.091
0.495AspCys: 0.495 ± 0.024
2.721AspAsp: 2.721 ± 0.065
3.61AspGlu: 3.61 ± 0.076
2.351AspPhe: 2.351 ± 0.072
3.55AspGly: 3.55 ± 0.128
0.982AspHis: 0.982 ± 0.038
4.47AspIle: 4.47 ± 0.086
3.539AspLys: 3.539 ± 0.075
4.958AspLeu: 4.958 ± 0.095
1.307AspMet: 1.307 ± 0.044
2.734AspAsn: 2.734 ± 0.073
2.136AspPro: 2.136 ± 0.058
1.716AspGln: 1.716 ± 0.055
2.196AspArg: 2.196 ± 0.059
3.196AspSer: 3.196 ± 0.08
2.711AspThr: 2.711 ± 0.115
3.654AspVal: 3.654 ± 0.073
0.706AspTrp: 0.706 ± 0.032
2.22AspTyr: 2.22 ± 0.066
0.0AspXaa: 0.0 ± 0.0
Glu
4.388GluAla: 4.388 ± 0.09
0.447GluCys: 0.447 ± 0.026
2.533GluAsp: 2.533 ± 0.075
3.418GluGlu: 3.418 ± 0.083
2.157GluPhe: 2.157 ± 0.062
3.018GluGly: 3.018 ± 0.071
1.441GluHis: 1.441 ± 0.046
4.062GluIle: 4.062 ± 0.082
3.936GluLys: 3.936 ± 0.087
6.486GluLeu: 6.486 ± 0.108
1.712GluMet: 1.712 ± 0.051
2.777GluAsn: 2.777 ± 0.067
1.936GluPro: 1.936 ± 0.056
3.888GluGln: 3.888 ± 0.075
2.937GluArg: 2.937 ± 0.08
3.286GluSer: 3.286 ± 0.068
2.927GluThr: 2.927 ± 0.059
3.745GluVal: 3.745 ± 0.087
0.654GluTrp: 0.654 ± 0.031
1.863GluTyr: 1.863 ± 0.058
0.0GluXaa: 0.0 ± 0.0
Phe
3.325PheAla: 3.325 ± 0.081
0.515PheCys: 0.515 ± 0.026
2.59PheAsp: 2.59 ± 0.057
2.153PheGlu: 2.153 ± 0.059
1.833PhePhe: 1.833 ± 0.063
3.268PheGly: 3.268 ± 0.084
0.727PheHis: 0.727 ± 0.034
3.422PheIle: 3.422 ± 0.081
2.087PheLys: 2.087 ± 0.053
3.676PheLeu: 3.676 ± 0.086
1.065PheMet: 1.065 ± 0.036
2.21PheAsn: 2.21 ± 0.056
1.439PhePro: 1.439 ± 0.046
1.138PheGln: 1.138 ± 0.036
1.365PheArg: 1.365 ± 0.046
3.31PheSer: 3.31 ± 0.073
2.611PheThr: 2.611 ± 0.06
2.679PheVal: 2.679 ± 0.063
0.555PheTrp: 0.555 ± 0.027
1.573PheTyr: 1.573 ± 0.051
0.0PheXaa: 0.0 ± 0.0
Gly
5.094GlyAla: 5.094 ± 0.095
0.918GlyCys: 0.918 ± 0.034
3.351GlyAsp: 3.351 ± 0.086
3.743GlyGlu: 3.743 ± 0.073
3.323GlyPhe: 3.323 ± 0.085
4.882GlyGly: 4.882 ± 0.11
1.468GlyHis: 1.468 ± 0.052
5.452GlyIle: 5.452 ± 0.099
4.052GlyLys: 4.052 ± 0.083
6.804GlyLeu: 6.804 ± 0.12
1.928GlyMet: 1.928 ± 0.051
2.814GlyAsn: 2.814 ± 0.129
1.541GlyPro: 1.541 ± 0.049
2.786GlyGln: 2.786 ± 0.059
2.948GlyArg: 2.948 ± 0.072
4.392GlySer: 4.392 ± 0.114
4.005GlyThr: 4.005 ± 0.273
5.061GlyVal: 5.061 ± 0.112
0.911GlyTrp: 0.911 ± 0.044
2.741GlyTyr: 2.741 ± 0.066
0.0GlyXaa: 0.0 ± 0.0
His
1.328HisAla: 1.328 ± 0.046
0.296HisCys: 0.296 ± 0.018
0.969HisAsp: 0.969 ± 0.037
0.99HisGlu: 0.99 ± 0.043
0.999HisPhe: 0.999 ± 0.037
1.365HisGly: 1.365 ± 0.048
0.599HisHis: 0.599 ± 0.033
1.519HisIle: 1.519 ± 0.054
1.126HisLys: 1.126 ± 0.04
2.16HisLeu: 2.16 ± 0.063
0.447HisMet: 0.447 ± 0.025
0.98HisAsn: 0.98 ± 0.035
1.035HisPro: 1.035 ± 0.038
0.986HisGln: 0.986 ± 0.036
0.895HisArg: 0.895 ± 0.036
1.211HisSer: 1.211 ± 0.047
1.023HisThr: 1.023 ± 0.035
1.227HisVal: 1.227 ± 0.037
0.281HisTrp: 0.281 ± 0.021
0.863HisTyr: 0.863 ± 0.036
0.0HisXaa: 0.0 ± 0.0
Ile
6.869IleAla: 6.869 ± 0.105
0.872IleCys: 0.872 ± 0.034
4.405IleAsp: 4.405 ± 0.083
4.752IleGlu: 4.752 ± 0.09
2.946IlePhe: 2.946 ± 0.078
5.426IleGly: 5.426 ± 0.098
1.382IleHis: 1.382 ± 0.044
5.642IleIle: 5.642 ± 0.096
4.274IleLys: 4.274 ± 0.093
6.838IleLeu: 6.838 ± 0.129
1.675IleMet: 1.675 ± 0.047
3.651IleAsn: 3.651 ± 0.087
3.238IlePro: 3.238 ± 0.067
2.586IleGln: 2.586 ± 0.067
3.005IleArg: 3.005 ± 0.071
5.068IleSer: 5.068 ± 0.092
4.868IleThr: 4.868 ± 0.194
4.998IleVal: 4.998 ± 0.083
0.772IleTrp: 0.772 ± 0.035
2.281IleTyr: 2.281 ± 0.053
0.0IleXaa: 0.0 ± 0.0
Lys
4.639LysAla: 4.639 ± 0.088
0.316LysCys: 0.316 ± 0.019
3.165LysAsp: 3.165 ± 0.075
3.78LysGlu: 3.78 ± 0.083
1.759LysPhe: 1.759 ± 0.052
3.519LysGly: 3.519 ± 0.069
1.177LysHis: 1.177 ± 0.042
3.967LysIle: 3.967 ± 0.077
3.63LysLys: 3.63 ± 0.089
5.7LysLeu: 5.7 ± 0.099
1.586LysMet: 1.586 ± 0.05
2.758LysAsn: 2.758 ± 0.057
2.571LysPro: 2.571 ± 0.066
3.378LysGln: 3.378 ± 0.08
2.589LysArg: 2.589 ± 0.067
3.408LysSer: 3.408 ± 0.076
3.442LysThr: 3.442 ± 0.064
3.827LysVal: 3.827 ± 0.08
0.545LysTrp: 0.545 ± 0.031
1.75LysTyr: 1.75 ± 0.061
0.0LysXaa: 0.0 ± 0.0
Leu
8.74LeuAla: 8.74 ± 0.123
1.071LeuCys: 1.071 ± 0.042
5.579LeuAsp: 5.579 ± 0.086
5.241LeuGlu: 5.241 ± 0.11
4.464LeuPhe: 4.464 ± 0.103
6.691LeuGly: 6.691 ± 0.115
1.911LeuHis: 1.911 ± 0.052
7.34LeuIle: 7.34 ± 0.134
5.8LeuLys: 5.8 ± 0.092
10.462LeuLeu: 10.462 ± 0.199
2.424LeuMet: 2.424 ± 0.058
4.836LeuAsn: 4.836 ± 0.093
4.846LeuPro: 4.846 ± 0.093
3.823LeuGln: 3.823 ± 0.081
4.106LeuArg: 4.106 ± 0.093
8.116LeuSer: 8.116 ± 0.119
6.429LeuThr: 6.429 ± 0.096
6.631LeuVal: 6.631 ± 0.114
0.993LeuTrp: 0.993 ± 0.043
2.827LeuTyr: 2.827 ± 0.067
0.0LeuXaa: 0.0 ± 0.0
Met
2.148MetAla: 2.148 ± 0.047
0.202MetCys: 0.202 ± 0.017
1.095MetAsp: 1.095 ± 0.039
1.133MetGlu: 1.133 ± 0.041
0.88MetPhe: 0.88 ± 0.037
1.672MetGly: 1.672 ± 0.046
0.424MetHis: 0.424 ± 0.026
1.832MetIle: 1.832 ± 0.056
1.662MetLys: 1.662 ± 0.048
2.65MetLeu: 2.65 ± 0.07
0.789MetMet: 0.789 ± 0.028
1.305MetAsn: 1.305 ± 0.045
1.095MetPro: 1.095 ± 0.037
1.101MetGln: 1.101 ± 0.036
1.071MetArg: 1.071 ± 0.037
1.859MetSer: 1.859 ± 0.048
1.646MetThr: 1.646 ± 0.044
1.679MetVal: 1.679 ± 0.054
0.199MetTrp: 0.199 ± 0.018
0.568MetTyr: 0.568 ± 0.029
0.0MetXaa: 0.0 ± 0.0
Asn
3.126AsnAla: 3.126 ± 0.065
0.413AsnCys: 0.413 ± 0.024
2.262AsnAsp: 2.262 ± 0.064
2.482AsnGlu: 2.482 ± 0.068
1.689AsnPhe: 1.689 ± 0.056
3.257AsnGly: 3.257 ± 0.164
0.992AsnHis: 0.992 ± 0.034
3.754AsnIle: 3.754 ± 0.084
2.779AsnLys: 2.779 ± 0.068
4.381AsnLeu: 4.381 ± 0.083
1.084AsnMet: 1.084 ± 0.042
2.685AsnAsn: 2.685 ± 0.105
2.145AsnPro: 2.145 ± 0.063
2.286AsnGln: 2.286 ± 0.061
2.001AsnArg: 2.001 ± 0.06
2.861AsnSer: 2.861 ± 0.075
2.575AsnThr: 2.575 ± 0.072
2.918AsnVal: 2.918 ± 0.065
0.651AsnTrp: 0.651 ± 0.034
1.78AsnTyr: 1.78 ± 0.051
0.0AsnXaa: 0.0 ± 0.0
Pro
3.344ProAla: 3.344 ± 0.081
0.329ProCys: 0.329 ± 0.021
2.429ProAsp: 2.429 ± 0.059
3.141ProGlu: 3.141 ± 0.063
1.724ProPhe: 1.724 ± 0.048
2.225ProGly: 2.225 ± 0.06
0.745ProHis: 0.745 ± 0.032
2.625ProIle: 2.625 ± 0.063
2.2ProLys: 2.2 ± 0.067
3.92ProLeu: 3.92 ± 0.074
0.954ProMet: 0.954 ± 0.033
1.736ProAsn: 1.736 ± 0.046
1.114ProPro: 1.114 ± 0.041
1.478ProGln: 1.478 ± 0.04
1.207ProArg: 1.207 ± 0.041
2.142ProSer: 2.142 ± 0.049
2.468ProThr: 2.468 ± 0.08
3.366ProVal: 3.366 ± 0.084
0.406ProTrp: 0.406 ± 0.026
1.421ProTyr: 1.421 ± 0.049
0.0ProXaa: 0.0 ± 0.0
Gln
3.745GlnAla: 3.745 ± 0.066
0.343GlnCys: 0.343 ± 0.021
2.126GlnAsp: 2.126 ± 0.051
2.39GlnGlu: 2.39 ± 0.071
1.865GlnPhe: 1.865 ± 0.052
2.705GlnGly: 2.705 ± 0.072
1.044GlnHis: 1.044 ± 0.037
3.238GlnIle: 3.238 ± 0.074
2.545GlnLys: 2.545 ± 0.068
5.101GlnLeu: 5.101 ± 0.104
1.032GlnMet: 1.032 ± 0.038
1.911GlnAsn: 1.911 ± 0.056
1.584GlnPro: 1.584 ± 0.045
3.05GlnGln: 3.05 ± 0.085
2.054GlnArg: 2.054 ± 0.055
2.512GlnSer: 2.512 ± 0.061
2.409GlnThr: 2.409 ± 0.065
2.876GlnVal: 2.876 ± 0.065
0.547GlnTrp: 0.547 ± 0.029
1.728GlnTyr: 1.728 ± 0.048
0.0GlnXaa: 0.0 ± 0.0
Arg
3.034ArgAla: 3.034 ± 0.074
0.416ArgCys: 0.416 ± 0.024
2.17ArgAsp: 2.17 ± 0.059
2.545ArgGlu: 2.545 ± 0.062
2.03ArgPhe: 2.03 ± 0.056
2.392ArgGly: 2.392 ± 0.062
0.971ArgHis: 0.971 ± 0.038
3.113ArgIle: 3.113 ± 0.086
2.199ArgLys: 2.199 ± 0.059
4.646ArgLeu: 4.646 ± 0.103
1.018ArgMet: 1.018 ± 0.039
1.842ArgAsn: 1.842 ± 0.051
1.517ArgPro: 1.517 ± 0.043
2.13ArgGln: 2.13 ± 0.062
2.216ArgArg: 2.216 ± 0.067
2.447ArgSer: 2.447 ± 0.072
2.113ArgThr: 2.113 ± 0.055
2.846ArgVal: 2.846 ± 0.07
0.566ArgTrp: 0.566 ± 0.03
1.866ArgTyr: 1.866 ± 0.05
0.0ArgXaa: 0.0 ± 0.0
Ser
4.996SerAla: 4.996 ± 0.09
0.625SerCys: 0.625 ± 0.032
3.576SerAsp: 3.576 ± 0.086
3.56SerGlu: 3.56 ± 0.078
2.82SerPhe: 2.82 ± 0.073
5.18SerGly: 5.18 ± 0.118
1.393SerHis: 1.393 ± 0.048
4.707SerIle: 4.707 ± 0.107
3.24SerLys: 3.24 ± 0.068
6.874SerLeu: 6.874 ± 0.107
1.641SerMet: 1.641 ± 0.049
2.671SerAsn: 2.671 ± 0.074
2.499SerPro: 2.499 ± 0.058
2.721SerGln: 2.721 ± 0.065
2.602SerArg: 2.602 ± 0.067
4.343SerSer: 4.343 ± 0.094
3.777SerThr: 3.777 ± 0.186
4.392SerVal: 4.392 ± 0.081
0.814SerTrp: 0.814 ± 0.037
2.317SerTyr: 2.317 ± 0.07
0.0SerXaa: 0.0 ± 0.0
Thr
4.615ThrAla: 4.615 ± 0.21
0.443ThrCys: 0.443 ± 0.027
3.125ThrAsp: 3.125 ± 0.112
3.234ThrGlu: 3.234 ± 0.069
2.24ThrPhe: 2.24 ± 0.058
4.609ThrGly: 4.609 ± 0.155
1.194ThrHis: 1.194 ± 0.046
4.586ThrIle: 4.586 ± 0.194
2.877ThrLys: 2.877 ± 0.076
6.373ThrLeu: 6.373 ± 0.107
1.204ThrMet: 1.204 ± 0.039
2.447ThrAsn: 2.447 ± 0.083
2.794ThrPro: 2.794 ± 0.076
2.457ThrGln: 2.457 ± 0.06
2.223ThrArg: 2.223 ± 0.063
3.688ThrSer: 3.688 ± 0.117
3.693ThrThr: 3.693 ± 0.212
4.498ThrVal: 4.498 ± 0.341
0.551ThrTrp: 0.551 ± 0.032
1.85ThrTyr: 1.85 ± 0.11
0.0ThrXaa: 0.0 ± 0.0
Val
5.799ValAla: 5.799 ± 0.108
0.771ValCys: 0.771 ± 0.032
3.734ValAsp: 3.734 ± 0.076
3.936ValGlu: 3.936 ± 0.082
2.568ValPhe: 2.568 ± 0.067
4.719ValGly: 4.719 ± 0.094
1.105ValHis: 1.105 ± 0.04
5.687ValIle: 5.687 ± 0.081
3.884ValLys: 3.884 ± 0.079
6.682ValLeu: 6.682 ± 0.108
1.757ValMet: 1.757 ± 0.053
3.18ValAsn: 3.18 ± 0.093
2.577ValPro: 2.577 ± 0.062
2.347ValGln: 2.347 ± 0.093
2.582ValArg: 2.582 ± 0.061
4.567ValSer: 4.567 ± 0.074
4.568ValThr: 4.568 ± 0.243
4.791ValVal: 4.791 ± 0.086
0.681ValTrp: 0.681 ± 0.031
2.07ValTyr: 2.07 ± 0.054
0.0ValXaa: 0.0 ± 0.0
Trp
0.655TrpAla: 0.655 ± 0.033
0.135TrpCys: 0.135 ± 0.013
0.506TrpAsp: 0.506 ± 0.024
0.456TrpGlu: 0.456 ± 0.025
0.597TrpPhe: 0.597 ± 0.033
0.755TrpGly: 0.755 ± 0.036
0.252TrpHis: 0.252 ± 0.018
0.775TrpIle: 0.775 ± 0.039
0.523TrpLys: 0.523 ± 0.028
1.528TrpLeu: 1.528 ± 0.057
0.316TrpMet: 0.316 ± 0.022
0.499TrpAsn: 0.499 ± 0.025
0.35TrpPro: 0.35 ± 0.021
0.915TrpGln: 0.915 ± 0.035
0.562TrpArg: 0.562 ± 0.027
0.703TrpSer: 0.703 ± 0.029
0.514TrpThr: 0.514 ± 0.026
0.723TrpVal: 0.723 ± 0.033
0.147TrpTrp: 0.147 ± 0.013
0.403TrpTyr: 0.403 ± 0.023
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.377TyrAla: 2.377 ± 0.06
0.425TyrCys: 0.425 ± 0.024
1.914TyrAsp: 1.914 ± 0.062
1.621TyrGlu: 1.621 ± 0.051
1.71TyrPhe: 1.71 ± 0.051
2.196TyrGly: 2.196 ± 0.053
0.827TyrHis: 0.827 ± 0.036
2.327TyrIle: 2.327 ± 0.052
1.602TyrLys: 1.602 ± 0.055
3.697TyrLeu: 3.697 ± 0.077
0.687TyrMet: 0.687 ± 0.027
1.467TyrAsn: 1.467 ± 0.044
1.549TyrPro: 1.549 ± 0.045
2.103TyrGln: 2.103 ± 0.069
1.709TyrArg: 1.709 ± 0.05
2.313TyrSer: 2.313 ± 0.059
2.021TyrThr: 2.021 ± 0.099
2.036TyrVal: 2.036 ± 0.057
0.436TyrTrp: 0.436 ± 0.027
1.32TyrTyr: 1.32 ± 0.049
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 2340 proteins (769076 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