Amino acid dipepetide frequency for Prevotella sp. S7 MS 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
5.767AlaAla: 5.767 ± 0.104
0.944AlaCys: 0.944 ± 0.038
4.302AlaAsp: 4.302 ± 0.083
4.51AlaGlu: 4.51 ± 0.09
3.195AlaPhe: 3.195 ± 0.073
4.845AlaGly: 4.845 ± 0.084
1.47AlaHis: 1.47 ± 0.048
4.964AlaIle: 4.964 ± 0.096
4.543AlaLys: 4.543 ± 0.091
6.802AlaLeu: 6.802 ± 0.105
2.123AlaMet: 2.123 ± 0.058
3.34AlaAsn: 3.34 ± 0.064
2.19AlaPro: 2.19 ± 0.049
3.006AlaGln: 3.006 ± 0.066
3.365AlaArg: 3.365 ± 0.069
4.139AlaSer: 4.139 ± 0.077
4.2AlaThr: 4.2 ± 0.066
4.807AlaVal: 4.807 ± 0.084
0.898AlaTrp: 0.898 ± 0.032
2.971AlaTyr: 2.971 ± 0.068
0.0AlaXaa: 0.0 ± 0.0
Cys
0.786CysAla: 0.786 ± 0.033
0.189CysCys: 0.189 ± 0.017
0.672CysAsp: 0.672 ± 0.031
0.653CysGlu: 0.653 ± 0.034
0.537CysPhe: 0.537 ± 0.027
1.041CysGly: 1.041 ± 0.039
0.363CysHis: 0.363 ± 0.022
0.898CysIle: 0.898 ± 0.032
0.68CysLys: 0.68 ± 0.036
1.102CysLeu: 1.102 ± 0.04
0.374CysMet: 0.374 ± 0.023
0.604CysAsn: 0.604 ± 0.028
0.513CysPro: 0.513 ± 0.029
0.379CysGln: 0.379 ± 0.021
0.62CysArg: 0.62 ± 0.024
0.695CysSer: 0.695 ± 0.03
0.717CysThr: 0.717 ± 0.034
0.755CysVal: 0.755 ± 0.033
0.139CysTrp: 0.139 ± 0.014
0.514CysTyr: 0.514 ± 0.025
0.0CysXaa: 0.0 ± 0.0
Asp
4.061AspAla: 4.061 ± 0.077
0.677AspCys: 0.677 ± 0.032
2.902AspAsp: 2.902 ± 0.069
3.969AspGlu: 3.969 ± 0.074
2.975AspPhe: 2.975 ± 0.062
4.298AspGly: 4.298 ± 0.08
1.044AspHis: 1.044 ± 0.038
4.254AspIle: 4.254 ± 0.072
3.901AspLys: 3.901 ± 0.069
4.5AspLeu: 4.5 ± 0.081
1.824AspMet: 1.824 ± 0.048
2.892AspAsn: 2.892 ± 0.064
1.662AspPro: 1.662 ± 0.051
1.333AspGln: 1.333 ± 0.043
2.582AspArg: 2.582 ± 0.062
3.152AspSer: 3.152 ± 0.079
2.987AspThr: 2.987 ± 0.065
3.857AspVal: 3.857 ± 0.075
0.819AspTrp: 0.819 ± 0.032
2.848AspTyr: 2.848 ± 0.062
0.0AspXaa: 0.0 ± 0.0
Glu
4.691GluAla: 4.691 ± 0.085
0.638GluCys: 0.638 ± 0.028
3.179GluAsp: 3.179 ± 0.072
4.291GluGlu: 4.291 ± 0.102
2.277GluPhe: 2.277 ± 0.059
3.721GluGly: 3.721 ± 0.08
1.441GluHis: 1.441 ± 0.051
4.124GluIle: 4.124 ± 0.084
4.353GluLys: 4.353 ± 0.094
5.673GluLeu: 5.673 ± 0.096
1.961GluMet: 1.961 ± 0.049
3.037GluAsn: 3.037 ± 0.071
1.704GluPro: 1.704 ± 0.049
2.844GluGln: 2.844 ± 0.063
3.413GluArg: 3.413 ± 0.079
3.054GluSer: 3.054 ± 0.069
3.031GluThr: 3.031 ± 0.064
4.078GluVal: 4.078 ± 0.076
0.774GluTrp: 0.774 ± 0.033
2.462GluTyr: 2.462 ± 0.057
0.0GluXaa: 0.0 ± 0.0
Phe
3.015PheAla: 3.015 ± 0.07
0.653PheCys: 0.653 ± 0.028
2.795PheAsp: 2.795 ± 0.053
2.303PheGlu: 2.303 ± 0.059
2.101PhePhe: 2.101 ± 0.055
3.38PheGly: 3.38 ± 0.073
0.967PheHis: 0.967 ± 0.035
2.933PheIle: 2.933 ± 0.063
2.52PheLys: 2.52 ± 0.047
3.626PheLeu: 3.626 ± 0.081
1.277PheMet: 1.277 ± 0.035
2.354PheAsn: 2.354 ± 0.055
1.552PhePro: 1.552 ± 0.047
1.295PheGln: 1.295 ± 0.036
2.037PheArg: 2.037 ± 0.05
3.124PheSer: 3.124 ± 0.064
2.744PheThr: 2.744 ± 0.056
2.979PheVal: 2.979 ± 0.066
0.527PheTrp: 0.527 ± 0.03
1.777PheTyr: 1.777 ± 0.047
0.0PheXaa: 0.0 ± 0.0
Gly
4.596GlyAla: 4.596 ± 0.101
0.861GlyCys: 0.861 ± 0.038
3.565GlyAsp: 3.565 ± 0.076
3.844GlyGlu: 3.844 ± 0.08
3.155GlyPhe: 3.155 ± 0.069
4.743GlyGly: 4.743 ± 0.1
1.474GlyHis: 1.474 ± 0.043
5.292GlyIle: 5.292 ± 0.094
5.205GlyLys: 5.205 ± 0.091
6.011GlyLeu: 6.011 ± 0.091
2.244GlyMet: 2.244 ± 0.055
3.505GlyAsn: 3.505 ± 0.08
1.274GlyPro: 1.274 ± 0.042
2.374GlyGln: 2.374 ± 0.055
3.29GlyArg: 3.29 ± 0.072
3.831GlySer: 3.831 ± 0.068
4.142GlyThr: 4.142 ± 0.085
4.967GlyVal: 4.967 ± 0.08
1.026GlyTrp: 1.026 ± 0.033
3.376GlyTyr: 3.376 ± 0.08
0.0GlyXaa: 0.0 ± 0.0
His
1.443HisAla: 1.443 ± 0.049
0.317HisCys: 0.317 ± 0.018
1.219HisAsp: 1.219 ± 0.042
1.216HisGlu: 1.216 ± 0.044
1.084HisPhe: 1.084 ± 0.04
1.498HisGly: 1.498 ± 0.052
0.705HisHis: 0.705 ± 0.033
1.631HisIle: 1.631 ± 0.05
1.084HisLys: 1.084 ± 0.039
1.978HisLeu: 1.978 ± 0.058
0.42HisMet: 0.42 ± 0.025
1.078HisAsn: 1.078 ± 0.038
1.138HisPro: 1.138 ± 0.042
0.813HisGln: 0.813 ± 0.033
1.19HisArg: 1.19 ± 0.036
1.185HisSer: 1.185 ± 0.043
1.252HisThr: 1.252 ± 0.044
1.377HisVal: 1.377 ± 0.043
0.293HisTrp: 0.293 ± 0.019
0.983HisTyr: 0.983 ± 0.036
0.0HisXaa: 0.0 ± 0.0
Ile
5.293IleAla: 5.293 ± 0.093
0.905IleCys: 0.905 ± 0.039
4.486IleAsp: 4.486 ± 0.084
4.217IleGlu: 4.217 ± 0.084
2.659IlePhe: 2.659 ± 0.066
4.822IleGly: 4.822 ± 0.098
1.436IleHis: 1.436 ± 0.052
4.63IleIle: 4.63 ± 0.089
4.019IleLys: 4.019 ± 0.082
5.714IleLeu: 5.714 ± 0.115
1.658IleMet: 1.658 ± 0.047
3.422IleAsn: 3.422 ± 0.065
3.08IlePro: 3.08 ± 0.058
2.216IleGln: 2.216 ± 0.061
3.192IleArg: 3.192 ± 0.068
4.326IleSer: 4.326 ± 0.079
3.894IleThr: 3.894 ± 0.07
4.594IleVal: 4.594 ± 0.083
0.645IleTrp: 0.645 ± 0.033
2.614IleTyr: 2.614 ± 0.06
0.0IleXaa: 0.0 ± 0.0
Lys
5.048LysAla: 5.048 ± 0.089
0.531LysCys: 0.531 ± 0.024
3.84LysAsp: 3.84 ± 0.068
4.706LysGlu: 4.706 ± 0.097
2.331LysPhe: 2.331 ± 0.056
4.175LysGly: 4.175 ± 0.079
1.359LysHis: 1.359 ± 0.041
3.865LysIle: 3.865 ± 0.073
4.712LysLys: 4.712 ± 0.095
5.525LysLeu: 5.525 ± 0.086
2.186LysMet: 2.186 ± 0.052
3.221LysAsn: 3.221 ± 0.066
2.202LysPro: 2.202 ± 0.056
2.861LysGln: 2.861 ± 0.067
3.273LysArg: 3.273 ± 0.062
3.467LysSer: 3.467 ± 0.071
3.831LysThr: 3.831 ± 0.079
4.274LysVal: 4.274 ± 0.084
0.772LysTrp: 0.772 ± 0.033
2.709LysTyr: 2.709 ± 0.062
0.0LysXaa: 0.0 ± 0.0
Leu
6.504LeuAla: 6.504 ± 0.091
1.309LeuCys: 1.309 ± 0.042
4.85LeuAsp: 4.85 ± 0.075
4.657LeuGlu: 4.657 ± 0.095
4.162LeuPhe: 4.162 ± 0.095
5.903LeuGly: 5.903 ± 0.092
2.071LeuHis: 2.071 ± 0.058
5.389LeuIle: 5.389 ± 0.093
6.038LeuLys: 6.038 ± 0.094
8.746LeuLeu: 8.746 ± 0.131
2.713LeuMet: 2.713 ± 0.066
4.44LeuAsn: 4.44 ± 0.091
3.901LeuPro: 3.901 ± 0.075
3.643LeuGln: 3.643 ± 0.076
4.633LeuArg: 4.633 ± 0.075
6.544LeuSer: 6.544 ± 0.089
5.327LeuThr: 5.327 ± 0.092
5.287LeuVal: 5.287 ± 0.093
1.066LeuTrp: 1.066 ± 0.043
3.599LeuTyr: 3.599 ± 0.075
0.0LeuXaa: 0.0 ± 0.0
Met
2.481MetAla: 2.481 ± 0.062
0.278MetCys: 0.278 ± 0.018
1.564MetAsp: 1.564 ± 0.049
1.821MetGlu: 1.821 ± 0.049
1.093MetPhe: 1.093 ± 0.042
2.152MetGly: 2.152 ± 0.062
0.54MetHis: 0.54 ± 0.029
1.596MetIle: 1.596 ± 0.044
2.4MetLys: 2.4 ± 0.05
2.784MetLeu: 2.784 ± 0.065
1.036MetMet: 1.036 ± 0.043
1.609MetAsn: 1.609 ± 0.046
1.251MetPro: 1.251 ± 0.04
1.215MetGln: 1.215 ± 0.044
1.541MetArg: 1.541 ± 0.041
1.719MetSer: 1.719 ± 0.049
1.742MetThr: 1.742 ± 0.054
1.892MetVal: 1.892 ± 0.052
0.262MetTrp: 0.262 ± 0.018
0.879MetTyr: 0.879 ± 0.034
0.0MetXaa: 0.0 ± 0.0
Asn
3.418AsnAla: 3.418 ± 0.078
0.514AsnCys: 0.514 ± 0.028
2.598AsnAsp: 2.598 ± 0.058
2.863AsnGlu: 2.863 ± 0.065
2.199AsnPhe: 2.199 ± 0.056
3.787AsnGly: 3.787 ± 0.069
1.119AsnHis: 1.119 ± 0.039
3.857AsnIle: 3.857 ± 0.088
3.142AsnLys: 3.142 ± 0.064
4.209AsnLeu: 4.209 ± 0.082
1.426AsnMet: 1.426 ± 0.043
2.612AsnAsn: 2.612 ± 0.078
2.384AsnPro: 2.384 ± 0.065
1.759AsnGln: 1.759 ± 0.046
2.448AsnArg: 2.448 ± 0.067
2.691AsnSer: 2.691 ± 0.075
2.733AsnThr: 2.733 ± 0.057
3.225AsnVal: 3.225 ± 0.067
0.597AsnTrp: 0.597 ± 0.03
2.216AsnTyr: 2.216 ± 0.064
0.0AsnXaa: 0.0 ± 0.0
Pro
2.379ProAla: 2.379 ± 0.06
0.379ProCys: 0.379 ± 0.023
2.342ProAsp: 2.342 ± 0.053
2.865ProGlu: 2.865 ± 0.061
1.739ProPhe: 1.739 ± 0.049
2.162ProGly: 2.162 ± 0.055
0.791ProHis: 0.791 ± 0.032
2.498ProIle: 2.498 ± 0.058
2.045ProLys: 2.045 ± 0.051
3.225ProLeu: 3.225 ± 0.063
1.098ProMet: 1.098 ± 0.038
1.773ProAsn: 1.773 ± 0.05
0.717ProPro: 0.717 ± 0.035
1.522ProGln: 1.522 ± 0.045
1.441ProArg: 1.441 ± 0.043
2.134ProSer: 2.134 ± 0.055
2.446ProThr: 2.446 ± 0.061
2.593ProVal: 2.593 ± 0.055
0.447ProTrp: 0.447 ± 0.026
1.654ProTyr: 1.654 ± 0.042
0.0ProXaa: 0.0 ± 0.0
Gln
2.696GlnAla: 2.696 ± 0.065
0.374GlnCys: 0.374 ± 0.02
1.741GlnAsp: 1.741 ± 0.05
2.343GlnGlu: 2.343 ± 0.057
1.375GlnPhe: 1.375 ± 0.038
2.389GlnGly: 2.389 ± 0.054
0.848GlnHis: 0.848 ± 0.037
2.518GlnIle: 2.518 ± 0.059
2.524GlnLys: 2.524 ± 0.068
3.973GlnLeu: 3.973 ± 0.065
1.193GlnMet: 1.193 ± 0.037
1.764GlnAsn: 1.764 ± 0.05
1.356GlnPro: 1.356 ± 0.047
1.963GlnGln: 1.963 ± 0.06
1.967GlnArg: 1.967 ± 0.055
2.101GlnSer: 2.101 ± 0.056
2.186GlnThr: 2.186 ± 0.058
2.298GlnVal: 2.298 ± 0.051
0.523GlnTrp: 0.523 ± 0.028
1.579GlnTyr: 1.579 ± 0.041
0.0GlnXaa: 0.0 ± 0.0
Arg
2.905ArgAla: 2.905 ± 0.072
0.527ArgCys: 0.527 ± 0.027
2.426ArgAsp: 2.426 ± 0.055
3.047ArgGlu: 3.047 ± 0.073
2.195ArgPhe: 2.195 ± 0.055
2.839ArgGly: 2.839 ± 0.065
1.199ArgHis: 1.199 ± 0.041
3.435ArgIle: 3.435 ± 0.072
3.353ArgLys: 3.353 ± 0.057
4.815ArgLeu: 4.815 ± 0.099
1.708ArgMet: 1.708 ± 0.049
2.602ArgAsn: 2.602 ± 0.065
1.779ArgPro: 1.779 ± 0.051
2.22ArgGln: 2.22 ± 0.056
2.699ArgArg: 2.699 ± 0.069
2.448ArgSer: 2.448 ± 0.055
2.549ArgThr: 2.549 ± 0.056
2.918ArgVal: 2.918 ± 0.07
0.668ArgTrp: 0.668 ± 0.029
2.364ArgTyr: 2.364 ± 0.054
0.0ArgXaa: 0.0 ± 0.0
Ser
4.165SerAla: 4.165 ± 0.078
0.816SerCys: 0.816 ± 0.034
3.151SerAsp: 3.151 ± 0.063
3.277SerGlu: 3.277 ± 0.065
2.961SerPhe: 2.961 ± 0.07
4.221SerGly: 4.221 ± 0.076
1.327SerHis: 1.327 ± 0.039
4.278SerIle: 4.278 ± 0.071
3.556SerLys: 3.556 ± 0.075
5.741SerLeu: 5.741 ± 0.096
1.737SerMet: 1.737 ± 0.045
2.624SerAsn: 2.624 ± 0.06
2.219SerPro: 2.219 ± 0.059
2.051SerGln: 2.051 ± 0.053
2.774SerArg: 2.774 ± 0.059
3.595SerSer: 3.595 ± 0.075
3.277SerThr: 3.277 ± 0.068
3.953SerVal: 3.953 ± 0.072
0.754SerTrp: 0.754 ± 0.032
2.655SerTyr: 2.655 ± 0.062
0.0SerXaa: 0.0 ± 0.0
Thr
4.216ThrAla: 4.216 ± 0.078
0.61ThrCys: 0.61 ± 0.03
3.639ThrAsp: 3.639 ± 0.066
3.255ThrGlu: 3.255 ± 0.074
2.677ThrPhe: 2.677 ± 0.054
4.187ThrGly: 4.187 ± 0.076
1.16ThrHis: 1.16 ± 0.036
4.042ThrIle: 4.042 ± 0.08
3.099ThrLys: 3.099 ± 0.068
5.613ThrLeu: 5.613 ± 0.088
1.419ThrMet: 1.419 ± 0.041
2.531ThrAsn: 2.531 ± 0.063
2.826ThrPro: 2.826 ± 0.062
1.93ThrGln: 1.93 ± 0.05
2.274ThrArg: 2.274 ± 0.065
3.29ThrSer: 3.29 ± 0.082
3.392ThrThr: 3.392 ± 0.082
4.06ThrVal: 4.06 ± 0.071
0.689ThrTrp: 0.689 ± 0.03
2.478ThrTyr: 2.478 ± 0.062
0.0ThrXaa: 0.0 ± 0.0
Val
5.078ValAla: 5.078 ± 0.092
0.983ValCys: 0.983 ± 0.039
4.047ValAsp: 4.047 ± 0.075
4.076ValGlu: 4.076 ± 0.086
2.77ValPhe: 2.77 ± 0.054
4.581ValGly: 4.581 ± 0.096
1.181ValHis: 1.181 ± 0.036
4.148ValIle: 4.148 ± 0.081
4.442ValLys: 4.442 ± 0.09
5.758ValLeu: 5.758 ± 0.103
1.923ValMet: 1.923 ± 0.059
3.274ValAsn: 3.274 ± 0.075
2.427ValPro: 2.427 ± 0.058
2.055ValGln: 2.055 ± 0.051
3.016ValArg: 3.016 ± 0.066
4.429ValSer: 4.429 ± 0.083
3.624ValThr: 3.624 ± 0.075
4.894ValVal: 4.894 ± 0.104
0.742ValTrp: 0.742 ± 0.032
2.562ValTyr: 2.562 ± 0.054
0.0ValXaa: 0.0 ± 0.0
Trp
0.782TrpAla: 0.782 ± 0.037
0.158TrpCys: 0.158 ± 0.016
0.681TrpAsp: 0.681 ± 0.033
0.638TrpGlu: 0.638 ± 0.031
0.526TrpPhe: 0.526 ± 0.028
0.943TrpGly: 0.943 ± 0.033
0.339TrpHis: 0.339 ± 0.023
0.707TrpIle: 0.707 ± 0.032
0.857TrpLys: 0.857 ± 0.034
1.272TrpLeu: 1.272 ± 0.042
0.42TrpMet: 0.42 ± 0.025
0.8TrpAsn: 0.8 ± 0.031
0.297TrpPro: 0.297 ± 0.019
0.58TrpGln: 0.58 ± 0.029
0.615TrpArg: 0.615 ± 0.028
0.679TrpSer: 0.679 ± 0.028
0.688TrpThr: 0.688 ± 0.034
0.686TrpVal: 0.686 ± 0.034
0.192TrpTrp: 0.192 ± 0.016
0.509TrpTyr: 0.509 ± 0.024
0.0TrpXaa: 0.0 ± 0.0
Tyr
3.055TyrAla: 3.055 ± 0.068
0.566TyrCys: 0.566 ± 0.03
2.538TyrAsp: 2.538 ± 0.055
2.195TyrGlu: 2.195 ± 0.052
1.948TyrPhe: 1.948 ± 0.05
3.086TyrGly: 3.086 ± 0.065
1.067TyrHis: 1.067 ± 0.039
2.764TyrIle: 2.764 ± 0.068
2.414TyrLys: 2.414 ± 0.06
3.713TyrLeu: 3.713 ± 0.073
1.116TyrMet: 1.116 ± 0.039
2.317TyrAsn: 2.317 ± 0.071
1.779TyrPro: 1.779 ± 0.047
1.653TyrGln: 1.653 ± 0.045
2.325TyrArg: 2.325 ± 0.059
2.528TyrSer: 2.528 ± 0.06
2.625TyrThr: 2.625 ± 0.067
2.519TyrVal: 2.519 ± 0.057
0.539TyrTrp: 0.539 ± 0.029
2.02TyrTyr: 2.02 ± 0.062
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 2144 proteins (772140 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