Amino acid dipepetide frequency for Sphingobium sp. C100

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
18.652AlaAla: 18.652 ± 0.178
1.105AlaCys: 1.105 ± 0.034
8.011AlaAsp: 8.011 ± 0.076
6.909AlaGlu: 6.909 ± 0.086
4.327AlaPhe: 4.327 ± 0.058
11.33AlaGly: 11.33 ± 0.089
2.411AlaHis: 2.411 ± 0.042
6.99AlaIle: 6.99 ± 0.071
3.881AlaLys: 3.881 ± 0.064
14.198AlaLeu: 14.198 ± 0.122
4.18AlaMet: 4.18 ± 0.064
3.067AlaAsn: 3.067 ± 0.046
6.412AlaPro: 6.412 ± 0.087
5.194AlaGln: 5.194 ± 0.069
10.067AlaArg: 10.067 ± 0.11
6.452AlaSer: 6.452 ± 0.075
6.486AlaThr: 6.486 ± 0.071
8.331AlaVal: 8.331 ± 0.083
1.695AlaTrp: 1.695 ± 0.033
2.716AlaTyr: 2.716 ± 0.042
0.0AlaXaa: 0.0 ± 0.0
Cys
1.089CysAla: 1.089 ± 0.035
0.109CysCys: 0.109 ± 0.01
0.506CysAsp: 0.506 ± 0.019
0.364CysGlu: 0.364 ± 0.019
0.28CysPhe: 0.28 ± 0.015
0.878CysGly: 0.878 ± 0.028
0.23CysHis: 0.23 ± 0.013
0.387CysIle: 0.387 ± 0.017
0.168CysLys: 0.168 ± 0.012
0.722CysLeu: 0.722 ± 0.023
0.161CysMet: 0.161 ± 0.01
0.201CysAsn: 0.201 ± 0.011
0.449CysPro: 0.449 ± 0.019
0.208CysGln: 0.208 ± 0.013
0.561CysArg: 0.561 ± 0.023
0.436CysSer: 0.436 ± 0.018
0.379CysThr: 0.379 ± 0.021
0.538CysVal: 0.538 ± 0.02
0.135CysTrp: 0.135 ± 0.009
0.182CysTyr: 0.182 ± 0.011
0.0CysXaa: 0.0 ± 0.0
Asp
8.097AspAla: 8.097 ± 0.079
0.47AspCys: 0.47 ± 0.02
3.516AspAsp: 3.516 ± 0.058
3.271AspGlu: 3.271 ± 0.049
2.203AspPhe: 2.203 ± 0.042
6.003AspGly: 6.003 ± 0.076
1.517AspHis: 1.517 ± 0.033
3.251AspIle: 3.251 ± 0.045
1.77AspLys: 1.77 ± 0.043
5.988AspLeu: 5.988 ± 0.072
1.781AspMet: 1.781 ± 0.032
1.466AspAsn: 1.466 ± 0.037
3.826AspPro: 3.826 ± 0.056
2.019AspGln: 2.019 ± 0.04
5.105AspArg: 5.105 ± 0.064
2.476AspSer: 2.476 ± 0.041
2.518AspThr: 2.518 ± 0.051
4.065AspVal: 4.065 ± 0.052
1.134AspTrp: 1.134 ± 0.03
1.771AspTyr: 1.771 ± 0.044
0.0AspXaa: 0.0 ± 0.0
Glu
7.196GluAla: 7.196 ± 0.092
0.301GluCys: 0.301 ± 0.014
2.739GluAsp: 2.739 ± 0.048
2.805GluGlu: 2.805 ± 0.058
1.351GluPhe: 1.351 ± 0.031
4.409GluGly: 4.409 ± 0.063
1.009GluHis: 1.009 ± 0.026
2.783GluIle: 2.783 ± 0.046
1.926GluLys: 1.926 ± 0.043
4.577GluLeu: 4.577 ± 0.063
1.467GluMet: 1.467 ± 0.036
1.295GluAsn: 1.295 ± 0.03
2.422GluPro: 2.422 ± 0.04
2.12GluGln: 2.12 ± 0.042
4.744GluArg: 4.744 ± 0.061
2.2GluSer: 2.2 ± 0.04
3.047GluThr: 3.047 ± 0.052
3.206GluVal: 3.206 ± 0.057
0.704GluTrp: 0.704 ± 0.023
0.909GluTyr: 0.909 ± 0.027
0.0GluXaa: 0.0 ± 0.0
Phe
4.775PheAla: 4.775 ± 0.062
0.325PheCys: 0.325 ± 0.016
2.697PheAsp: 2.697 ± 0.042
1.873PheGlu: 1.873 ± 0.04
1.262PhePhe: 1.262 ± 0.036
3.535PheGly: 3.535 ± 0.052
0.731PheHis: 0.731 ± 0.02
1.452PheIle: 1.452 ± 0.033
0.818PheLys: 0.818 ± 0.023
3.151PheLeu: 3.151 ± 0.054
0.811PheMet: 0.811 ± 0.023
0.989PheAsn: 0.989 ± 0.028
1.524PhePro: 1.524 ± 0.034
0.901PheGln: 0.901 ± 0.025
2.252PheArg: 2.252 ± 0.04
2.005PheSer: 2.005 ± 0.04
2.031PheThr: 2.031 ± 0.038
2.451PheVal: 2.451 ± 0.048
0.525PheTrp: 0.525 ± 0.024
0.935PheTyr: 0.935 ± 0.029
0.0PheXaa: 0.0 ± 0.0
Gly
10.38GlyAla: 10.38 ± 0.101
0.804GlyCys: 0.804 ± 0.025
5.183GlyAsp: 5.183 ± 0.07
4.677GlyGlu: 4.677 ± 0.061
3.574GlyPhe: 3.574 ± 0.054
8.017GlyGly: 8.017 ± 0.104
1.964GlyHis: 1.964 ± 0.036
4.406GlyIle: 4.406 ± 0.07
3.235GlyLys: 3.235 ± 0.053
8.817GlyLeu: 8.817 ± 0.091
2.444GlyMet: 2.444 ± 0.047
2.22GlyAsn: 2.22 ± 0.056
3.599GlyPro: 3.599 ± 0.054
3.223GlyGln: 3.223 ± 0.049
6.585GlyArg: 6.585 ± 0.071
4.724GlySer: 4.724 ± 0.073
4.554GlyThr: 4.554 ± 0.076
6.2GlyVal: 6.2 ± 0.077
1.63GlyTrp: 1.63 ± 0.039
2.388GlyTyr: 2.388 ± 0.044
0.0GlyXaa: 0.0 ± 0.0
His
2.359HisAla: 2.359 ± 0.044
0.229HisCys: 0.229 ± 0.013
1.336HisAsp: 1.336 ± 0.033
0.96HisGlu: 0.96 ± 0.027
0.872HisPhe: 0.872 ± 0.025
2.122HisGly: 2.122 ± 0.037
0.631HisHis: 0.631 ± 0.027
1.032HisIle: 1.032 ± 0.027
0.444HisLys: 0.444 ± 0.018
1.986HisLeu: 1.986 ± 0.041
0.596HisMet: 0.596 ± 0.02
0.47HisAsn: 0.47 ± 0.019
1.288HisPro: 1.288 ± 0.032
0.609HisGln: 0.609 ± 0.021
1.48HisArg: 1.48 ± 0.037
0.958HisSer: 0.958 ± 0.025
0.611HisThr: 0.611 ± 0.021
1.675HisVal: 1.675 ± 0.035
0.38HisTrp: 0.38 ± 0.016
0.635HisTyr: 0.635 ± 0.021
0.0HisXaa: 0.0 ± 0.0
Ile
7.878IleAla: 7.878 ± 0.088
0.478IleCys: 0.478 ± 0.021
4.167IleAsp: 4.167 ± 0.055
3.303IleGlu: 3.303 ± 0.057
1.79IlePhe: 1.79 ± 0.038
5.104IleGly: 5.104 ± 0.065
0.939IleHis: 0.939 ± 0.025
2.332IleIle: 2.332 ± 0.042
1.197IleLys: 1.197 ± 0.03
4.402IleLeu: 4.402 ± 0.062
1.036IleMet: 1.036 ± 0.028
1.365IleAsn: 1.365 ± 0.032
2.144IlePro: 2.144 ± 0.045
1.217IleGln: 1.217 ± 0.027
3.302IleArg: 3.302 ± 0.048
2.771IleSer: 2.771 ± 0.046
2.352IleThr: 2.352 ± 0.044
4.033IleVal: 4.033 ± 0.056
0.66IleTrp: 0.66 ± 0.022
1.03IleTyr: 1.03 ± 0.027
0.0IleXaa: 0.0 ± 0.0
Lys
4.229LysAla: 4.229 ± 0.063
0.15LysCys: 0.15 ± 0.009
1.678LysAsp: 1.678 ± 0.037
1.19LysGlu: 1.19 ± 0.03
0.736LysPhe: 0.736 ± 0.024
2.72LysGly: 2.72 ± 0.045
0.493LysHis: 0.493 ± 0.018
1.437LysIle: 1.437 ± 0.037
0.997LysLys: 0.997 ± 0.029
2.998LysLeu: 2.998 ± 0.049
0.782LysMet: 0.782 ± 0.026
0.729LysAsn: 0.729 ± 0.022
1.926LysPro: 1.926 ± 0.043
0.934LysGln: 0.934 ± 0.027
2.11LysArg: 2.11 ± 0.041
1.552LysSer: 1.552 ± 0.033
1.579LysThr: 1.579 ± 0.039
2.104LysVal: 2.104 ± 0.045
0.377LysTrp: 0.377 ± 0.017
0.55LysTyr: 0.55 ± 0.02
0.0LysXaa: 0.0 ± 0.0
Leu
13.766LeuAla: 13.766 ± 0.122
0.914LeuCys: 0.914 ± 0.025
6.305LeuAsp: 6.305 ± 0.073
4.683LeuGlu: 4.683 ± 0.07
3.729LeuPhe: 3.729 ± 0.056
8.17LeuGly: 8.17 ± 0.087
1.859LeuHis: 1.859 ± 0.039
4.995LeuIle: 4.995 ± 0.066
2.916LeuLys: 2.916 ± 0.048
9.983LeuLeu: 9.983 ± 0.134
2.306LeuMet: 2.306 ± 0.043
2.433LeuAsn: 2.433 ± 0.044
5.663LeuPro: 5.663 ± 0.07
2.4LeuGln: 2.4 ± 0.038
6.998LeuArg: 6.998 ± 0.077
6.226LeuSer: 6.226 ± 0.073
5.704LeuThr: 5.704 ± 0.07
6.835LeuVal: 6.835 ± 0.077
1.332LeuTrp: 1.332 ± 0.036
2.06LeuTyr: 2.06 ± 0.038
0.0LeuXaa: 0.0 ± 0.0
Met
3.616MetAla: 3.616 ± 0.05
0.153MetCys: 0.153 ± 0.01
1.362MetAsp: 1.362 ± 0.034
1.17MetGlu: 1.17 ± 0.03
0.747MetPhe: 0.747 ± 0.023
2.047MetGly: 2.047 ± 0.036
0.462MetHis: 0.462 ± 0.018
1.462MetIle: 1.462 ± 0.029
0.978MetLys: 0.978 ± 0.027
2.844MetLeu: 2.844 ± 0.049
0.805MetMet: 0.805 ± 0.024
0.735MetAsn: 0.735 ± 0.026
1.582MetPro: 1.582 ± 0.034
0.855MetGln: 0.855 ± 0.026
1.917MetArg: 1.917 ± 0.042
1.473MetSer: 1.473 ± 0.033
1.937MetThr: 1.937 ± 0.036
1.75MetVal: 1.75 ± 0.034
0.241MetTrp: 0.241 ± 0.012
0.266MetTyr: 0.266 ± 0.015
0.0MetXaa: 0.0 ± 0.0
Asn
3.215AsnAla: 3.215 ± 0.055
0.209AsnCys: 0.209 ± 0.014
1.455AsnAsp: 1.455 ± 0.035
1.127AsnGlu: 1.127 ± 0.03
0.921AsnPhe: 0.921 ± 0.03
2.481AsnGly: 2.481 ± 0.056
0.483AsnHis: 0.483 ± 0.017
1.365AsnIle: 1.365 ± 0.036
0.685AsnLys: 0.685 ± 0.023
2.491AsnLeu: 2.491 ± 0.044
0.614AsnMet: 0.614 ± 0.02
0.686AsnAsn: 0.686 ± 0.024
1.658AsnPro: 1.658 ± 0.035
0.781AsnGln: 0.781 ± 0.026
1.852AsnArg: 1.852 ± 0.04
1.246AsnSer: 1.246 ± 0.034
0.943AsnThr: 0.943 ± 0.031
1.78AsnVal: 1.78 ± 0.043
0.481AsnTrp: 0.481 ± 0.02
0.699AsnTyr: 0.699 ± 0.026
0.0AsnXaa: 0.0 ± 0.0
Pro
7.032ProAla: 7.032 ± 0.078
0.334ProCys: 0.334 ± 0.018
4.089ProAsp: 4.089 ± 0.057
3.103ProGlu: 3.103 ± 0.047
1.909ProPhe: 1.909 ± 0.039
4.74ProGly: 4.74 ± 0.062
1.102ProHis: 1.102 ± 0.029
2.515ProIle: 2.515 ± 0.045
1.397ProLys: 1.397 ± 0.036
4.953ProLeu: 4.953 ± 0.062
1.343ProMet: 1.343 ± 0.032
1.195ProAsn: 1.195 ± 0.033
2.791ProPro: 2.791 ± 0.06
1.82ProGln: 1.82 ± 0.041
3.1ProArg: 3.1 ± 0.047
2.752ProSer: 2.752 ± 0.045
2.576ProThr: 2.576 ± 0.043
4.445ProVal: 4.445 ± 0.061
0.71ProTrp: 0.71 ± 0.024
1.073ProTyr: 1.073 ± 0.029
0.0ProXaa: 0.0 ± 0.0
Gln
4.685GlnAla: 4.685 ± 0.062
0.233GlnCys: 0.233 ± 0.013
1.712GlnAsp: 1.712 ± 0.031
1.428GlnGlu: 1.428 ± 0.036
1.068GlnPhe: 1.068 ± 0.028
2.71GlnGly: 2.71 ± 0.046
0.594GlnHis: 0.594 ± 0.021
1.883GlnIle: 1.883 ± 0.039
0.984GlnLys: 0.984 ± 0.025
3.12GlnLeu: 3.12 ± 0.05
0.935GlnMet: 0.935 ± 0.026
0.763GlnAsn: 0.763 ± 0.023
1.926GlnPro: 1.926 ± 0.036
1.29GlnGln: 1.29 ± 0.037
2.595GlnArg: 2.595 ± 0.046
1.895GlnSer: 1.895 ± 0.04
1.639GlnThr: 1.639 ± 0.032
2.403GlnVal: 2.403 ± 0.043
0.499GlnTrp: 0.499 ± 0.02
0.645GlnTyr: 0.645 ± 0.024
0.0GlnXaa: 0.0 ± 0.0
Arg
9.004ArgAla: 9.004 ± 0.085
0.516ArgCys: 0.516 ± 0.018
4.541ArgAsp: 4.541 ± 0.065
3.698ArgGlu: 3.698 ± 0.052
3.09ArgPhe: 3.09 ± 0.047
4.959ArgGly: 4.959 ± 0.062
1.868ArgHis: 1.868 ± 0.035
4.267ArgIle: 4.267 ± 0.058
2.107ArgLys: 2.107 ± 0.044
8.211ArgLeu: 8.211 ± 0.085
2.017ArgMet: 2.017 ± 0.04
1.863ArgAsn: 1.863 ± 0.036
3.957ArgPro: 3.957 ± 0.06
2.75ArgGln: 2.75 ± 0.048
5.839ArgArg: 5.839 ± 0.086
3.755ArgSer: 3.755 ± 0.058
3.7ArgThr: 3.7 ± 0.05
4.536ArgVal: 4.536 ± 0.063
1.279ArgTrp: 1.279 ± 0.031
1.963ArgTyr: 1.963 ± 0.04
0.0ArgXaa: 0.0 ± 0.0
Ser
6.437SerAla: 6.437 ± 0.07
0.406SerCys: 0.406 ± 0.02
3.23SerAsp: 3.23 ± 0.048
2.4SerGlu: 2.4 ± 0.04
2.222SerPhe: 2.222 ± 0.043
5.397SerGly: 5.397 ± 0.07
1.044SerHis: 1.044 ± 0.029
2.802SerIle: 2.802 ± 0.059
1.385SerLys: 1.385 ± 0.029
5.189SerLeu: 5.189 ± 0.069
1.229SerMet: 1.229 ± 0.032
1.408SerAsn: 1.408 ± 0.034
2.849SerPro: 2.849 ± 0.05
1.565SerGln: 1.565 ± 0.032
3.543SerArg: 3.543 ± 0.051
2.825SerSer: 2.825 ± 0.058
2.558SerThr: 2.558 ± 0.044
3.696SerVal: 3.696 ± 0.051
0.785SerTrp: 0.785 ± 0.025
1.382SerTyr: 1.382 ± 0.036
0.0SerXaa: 0.0 ± 0.0
Thr
6.171ThrAla: 6.171 ± 0.06
0.371ThrCys: 0.371 ± 0.019
3.053ThrAsp: 3.053 ± 0.051
2.206ThrGlu: 2.206 ± 0.044
1.636ThrPhe: 1.636 ± 0.037
5.345ThrGly: 5.345 ± 0.071
1.008ThrHis: 1.008 ± 0.032
3.001ThrIle: 3.001 ± 0.049
1.231ThrLys: 1.231 ± 0.031
5.82ThrLeu: 5.82 ± 0.068
1.241ThrMet: 1.241 ± 0.027
1.242ThrAsn: 1.242 ± 0.033
3.441ThrPro: 3.441 ± 0.05
1.536ThrGln: 1.536 ± 0.031
3.442ThrArg: 3.442 ± 0.05
2.591ThrSer: 2.591 ± 0.05
2.552ThrThr: 2.552 ± 0.053
3.875ThrVal: 3.875 ± 0.067
0.577ThrTrp: 0.577 ± 0.019
1.117ThrTyr: 1.117 ± 0.03
0.0ThrXaa: 0.0 ± 0.0
Val
9.6ValAla: 9.6 ± 0.1
0.511ValCys: 0.511 ± 0.019
4.319ValAsp: 4.319 ± 0.057
4.358ValGlu: 4.358 ± 0.06
1.941ValPhe: 1.941 ± 0.043
5.473ValGly: 5.473 ± 0.059
1.422ValHis: 1.422 ± 0.029
3.495ValIle: 3.495 ± 0.05
2.075ValLys: 2.075 ± 0.044
5.883ValLeu: 5.883 ± 0.068
1.774ValMet: 1.774 ± 0.038
1.949ValAsn: 1.949 ± 0.046
3.738ValPro: 3.738 ± 0.053
2.232ValGln: 2.232 ± 0.037
5.095ValArg: 5.095 ± 0.067
3.906ValSer: 3.906 ± 0.056
4.382ValThr: 4.382 ± 0.061
4.898ValVal: 4.898 ± 0.074
0.799ValTrp: 0.799 ± 0.024
1.374ValTyr: 1.374 ± 0.035
0.0ValXaa: 0.0 ± 0.0
Trp
1.436TrpAla: 1.436 ± 0.033
0.124TrpCys: 0.124 ± 0.01
0.766TrpAsp: 0.766 ± 0.025
0.578TrpGlu: 0.578 ± 0.022
0.541TrpPhe: 0.541 ± 0.022
0.972TrpGly: 0.972 ± 0.027
0.352TrpHis: 0.352 ± 0.016
0.75TrpIle: 0.75 ± 0.024
0.462TrpLys: 0.462 ± 0.017
1.771TrpLeu: 1.771 ± 0.041
0.39TrpMet: 0.39 ± 0.015
0.47TrpAsn: 0.47 ± 0.021
0.733TrpPro: 0.733 ± 0.029
0.6TrpGln: 0.6 ± 0.02
1.359TrpArg: 1.359 ± 0.034
0.932TrpSer: 0.932 ± 0.025
0.931TrpThr: 0.931 ± 0.024
0.843TrpVal: 0.843 ± 0.027
0.25TrpTrp: 0.25 ± 0.013
0.305TrpTyr: 0.305 ± 0.014
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.796TyrAla: 2.796 ± 0.05
0.239TyrCys: 0.239 ± 0.013
1.583TyrAsp: 1.583 ± 0.04
1.107TyrGlu: 1.107 ± 0.029
0.842TyrPhe: 0.842 ± 0.024
2.212TyrGly: 2.212 ± 0.047
0.555TyrHis: 0.555 ± 0.022
0.896TyrIle: 0.896 ± 0.029
0.614TyrLys: 0.614 ± 0.023
2.176TyrLeu: 2.176 ± 0.04
0.491TyrMet: 0.491 ± 0.02
0.629TyrAsn: 0.629 ± 0.023
1.05TyrPro: 1.05 ± 0.029
0.749TyrGln: 0.749 ± 0.026
1.973TyrArg: 1.973 ± 0.039
1.178TyrSer: 1.178 ± 0.033
0.977TyrThr: 0.977 ± 0.028
1.561TyrVal: 1.561 ± 0.034
0.375TyrTrp: 0.375 ± 0.016
0.688TyrTyr: 0.688 ± 0.024
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 4513 proteins (1409744 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