Amino acid dipepetide frequency for Caulobacter mirabilis

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
21.813AlaAla: 21.813 ± 0.196
1.144AlaCys: 1.144 ± 0.033
7.8AlaAsp: 7.8 ± 0.082
8.18AlaGlu: 8.18 ± 0.116
5.046AlaPhe: 5.046 ± 0.065
12.848AlaGly: 12.848 ± 0.142
2.051AlaHis: 2.051 ± 0.046
5.416AlaIle: 5.416 ± 0.071
4.308AlaLys: 4.308 ± 0.063
14.331AlaLeu: 14.331 ± 0.136
3.389AlaMet: 3.389 ± 0.049
2.817AlaAsn: 2.817 ± 0.06
7.524AlaPro: 7.524 ± 0.081
4.355AlaGln: 4.355 ± 0.075
9.945AlaArg: 9.945 ± 0.111
6.488AlaSer: 6.488 ± 0.073
6.454AlaThr: 6.454 ± 0.104
10.271AlaVal: 10.271 ± 0.119
2.21AlaTrp: 2.21 ± 0.044
2.921AlaTyr: 2.921 ± 0.06
0.0AlaXaa: 0.0 ± 0.0
Cys
0.967CysAla: 0.967 ± 0.027
0.081CysCys: 0.081 ± 0.008
0.447CysAsp: 0.447 ± 0.022
0.362CysGlu: 0.362 ± 0.017
0.227CysPhe: 0.227 ± 0.011
0.808CysGly: 0.808 ± 0.026
0.155CysHis: 0.155 ± 0.011
0.267CysIle: 0.267 ± 0.013
0.171CysLys: 0.171 ± 0.014
0.649CysLeu: 0.649 ± 0.023
0.106CysMet: 0.106 ± 0.009
0.158CysAsn: 0.158 ± 0.01
0.381CysPro: 0.381 ± 0.018
0.195CysGln: 0.195 ± 0.013
0.503CysArg: 0.503 ± 0.023
0.381CysSer: 0.381 ± 0.018
0.345CysThr: 0.345 ± 0.016
0.534CysVal: 0.534 ± 0.022
0.101CysTrp: 0.101 ± 0.008
0.158CysTyr: 0.158 ± 0.011
0.0CysXaa: 0.0 ± 0.0
Asp
7.701AspAla: 7.701 ± 0.079
0.389AspCys: 0.389 ± 0.017
3.245AspAsp: 3.245 ± 0.06
3.247AspGlu: 3.247 ± 0.056
2.051AspPhe: 2.051 ± 0.038
6.101AspGly: 6.101 ± 0.074
1.184AspHis: 1.184 ± 0.032
2.522AspIle: 2.522 ± 0.058
1.588AspLys: 1.588 ± 0.034
6.425AspLeu: 6.425 ± 0.078
1.116AspMet: 1.116 ± 0.027
1.136AspAsn: 1.136 ± 0.036
4.004AspPro: 4.004 ± 0.06
1.829AspGln: 1.829 ± 0.04
4.92AspArg: 4.92 ± 0.069
2.046AspSer: 2.046 ± 0.04
2.206AspThr: 2.206 ± 0.044
4.094AspVal: 4.094 ± 0.065
1.161AspTrp: 1.161 ± 0.033
1.61AspTyr: 1.61 ± 0.036
0.0AspXaa: 0.0 ± 0.0
Glu
8.973GluAla: 8.973 ± 0.106
0.24GluCys: 0.24 ± 0.014
2.793GluAsp: 2.793 ± 0.054
2.711GluGlu: 2.711 ± 0.058
1.437GluPhe: 1.437 ± 0.036
4.807GluGly: 4.807 ± 0.069
1.034GluHis: 1.034 ± 0.03
2.977GluIle: 2.977 ± 0.045
1.709GluLys: 1.709 ± 0.044
4.718GluLeu: 4.718 ± 0.064
1.252GluMet: 1.252 ± 0.033
1.186GluAsn: 1.186 ± 0.032
2.883GluPro: 2.883 ± 0.054
1.886GluGln: 1.886 ± 0.039
4.918GluArg: 4.918 ± 0.075
2.051GluSer: 2.051 ± 0.043
3.809GluThr: 3.809 ± 0.052
3.797GluVal: 3.797 ± 0.061
0.619GluTrp: 0.619 ± 0.021
0.89GluTyr: 0.89 ± 0.024
0.0GluXaa: 0.0 ± 0.0
Phe
4.561PheAla: 4.561 ± 0.067
0.3PheCys: 0.3 ± 0.016
2.736PheAsp: 2.736 ± 0.055
2.234PheGlu: 2.234 ± 0.037
1.175PhePhe: 1.175 ± 0.033
3.599PheGly: 3.599 ± 0.059
0.667PheHis: 0.667 ± 0.022
1.286PheIle: 1.286 ± 0.032
0.98PheLys: 0.98 ± 0.029
2.998PheLeu: 2.998 ± 0.057
0.748PheMet: 0.748 ± 0.024
1.051PheAsn: 1.051 ± 0.033
1.488PhePro: 1.488 ± 0.035
1.04PheGln: 1.04 ± 0.032
2.194PheArg: 2.194 ± 0.046
2.013PheSer: 2.013 ± 0.045
2.102PheThr: 2.102 ± 0.049
2.767PheVal: 2.767 ± 0.055
0.52PheTrp: 0.52 ± 0.021
0.832PheTyr: 0.832 ± 0.025
0.0PheXaa: 0.0 ± 0.0
Gly
11.689GlyAla: 11.689 ± 0.131
0.737GlyCys: 0.737 ± 0.023
5.3GlyAsp: 5.3 ± 0.105
5.254GlyGlu: 5.254 ± 0.065
3.765GlyPhe: 3.765 ± 0.057
9.803GlyGly: 9.803 ± 0.332
1.526GlyHis: 1.526 ± 0.032
2.86GlyIle: 2.86 ± 0.052
3.106GlyLys: 3.106 ± 0.059
10.065GlyLeu: 10.065 ± 0.084
2.096GlyMet: 2.096 ± 0.043
1.783GlyAsn: 1.783 ± 0.058
4.288GlyPro: 4.288 ± 0.058
3.098GlyGln: 3.098 ± 0.056
7.377GlyArg: 7.377 ± 0.085
4.47GlySer: 4.47 ± 0.092
3.7GlyThr: 3.7 ± 0.105
8.262GlyVal: 8.262 ± 0.086
1.764GlyTrp: 1.764 ± 0.037
2.36GlyTyr: 2.36 ± 0.047
0.0GlyXaa: 0.0 ± 0.0
His
2.085HisAla: 2.085 ± 0.046
0.167HisCys: 0.167 ± 0.011
1.013HisAsp: 1.013 ± 0.028
0.954HisGlu: 0.954 ± 0.029
0.627HisPhe: 0.627 ± 0.023
1.761HisGly: 1.761 ± 0.04
0.43HisHis: 0.43 ± 0.019
0.633HisIle: 0.633 ± 0.024
0.368HisLys: 0.368 ± 0.018
1.617HisLeu: 1.617 ± 0.038
0.404HisMet: 0.404 ± 0.014
0.352HisAsn: 0.352 ± 0.016
1.215HisPro: 1.215 ± 0.028
0.502HisGln: 0.502 ± 0.02
1.275HisArg: 1.275 ± 0.033
0.686HisSer: 0.686 ± 0.024
0.617HisThr: 0.617 ± 0.02
1.291HisVal: 1.291 ± 0.033
0.29HisTrp: 0.29 ± 0.015
0.447HisTyr: 0.447 ± 0.02
0.0HisXaa: 0.0 ± 0.0
Ile
6.21IleAla: 6.21 ± 0.08
0.367IleCys: 0.367 ± 0.018
3.157IleAsp: 3.157 ± 0.052
2.954IleGlu: 2.954 ± 0.056
1.221IlePhe: 1.221 ± 0.033
4.196IleGly: 4.196 ± 0.054
0.705IleHis: 0.705 ± 0.026
1.485IleIle: 1.485 ± 0.039
1.153IleLys: 1.153 ± 0.034
3.706IleLeu: 3.706 ± 0.058
0.727IleMet: 0.727 ± 0.024
1.077IleAsn: 1.077 ± 0.036
1.925IlePro: 1.925 ± 0.04
1.167IleGln: 1.167 ± 0.032
2.78IleArg: 2.78 ± 0.041
2.208IleSer: 2.208 ± 0.046
2.437IleThr: 2.437 ± 0.077
3.607IleVal: 3.607 ± 0.055
0.543IleTrp: 0.543 ± 0.024
0.884IleTyr: 0.884 ± 0.027
0.0IleXaa: 0.0 ± 0.0
Lys
4.798LysAla: 4.798 ± 0.069
0.096LysCys: 0.096 ± 0.008
1.705LysAsp: 1.705 ± 0.038
1.158LysGlu: 1.158 ± 0.031
0.757LysPhe: 0.757 ± 0.026
2.828LysGly: 2.828 ± 0.055
0.458LysHis: 0.458 ± 0.017
1.351LysIle: 1.351 ± 0.032
0.995LysLys: 0.995 ± 0.038
2.921LysLeu: 2.921 ± 0.05
0.617LysMet: 0.617 ± 0.021
0.601LysAsn: 0.601 ± 0.022
2.219LysPro: 2.219 ± 0.049
0.836LysGln: 0.836 ± 0.023
2.138LysArg: 2.138 ± 0.044
1.434LysSer: 1.434 ± 0.032
2.048LysThr: 2.048 ± 0.042
2.411LysVal: 2.411 ± 0.046
0.335LysTrp: 0.335 ± 0.017
0.53LysTyr: 0.53 ± 0.021
0.0LysXaa: 0.0 ± 0.0
Leu
15.012LeuAla: 15.012 ± 0.157
0.709LeuCys: 0.709 ± 0.025
6.095LeuAsp: 6.095 ± 0.07
5.258LeuGlu: 5.258 ± 0.066
3.55LeuPhe: 3.55 ± 0.06
8.502LeuGly: 8.502 ± 0.094
1.623LeuHis: 1.623 ± 0.042
4.479LeuIle: 4.479 ± 0.068
3.672LeuLys: 3.672 ± 0.057
9.064LeuLeu: 9.064 ± 0.114
2.03LeuMet: 2.03 ± 0.04
2.487LeuAsn: 2.487 ± 0.052
5.427LeuPro: 5.427 ± 0.076
2.672LeuGln: 2.672 ± 0.041
6.808LeuArg: 6.808 ± 0.088
5.968LeuSer: 5.968 ± 0.075
6.169LeuThr: 6.169 ± 0.088
7.106LeuVal: 7.106 ± 0.081
1.298LeuTrp: 1.298 ± 0.034
2.056LeuTyr: 2.056 ± 0.041
0.0LeuXaa: 0.0 ± 0.0
Met
2.929MetAla: 2.929 ± 0.052
0.106MetCys: 0.106 ± 0.009
1.099MetAsp: 1.099 ± 0.03
0.93MetGlu: 0.93 ± 0.027
0.627MetPhe: 0.627 ± 0.024
1.752MetGly: 1.752 ± 0.04
0.31MetHis: 0.31 ± 0.014
1.1MetIle: 1.1 ± 0.032
0.843MetLys: 0.843 ± 0.025
2.056MetLeu: 2.056 ± 0.043
0.518MetMet: 0.518 ± 0.019
0.653MetAsn: 0.653 ± 0.023
1.142MetPro: 1.142 ± 0.027
0.593MetGln: 0.593 ± 0.021
1.623MetArg: 1.623 ± 0.033
1.497MetSer: 1.497 ± 0.036
1.886MetThr: 1.886 ± 0.038
1.432MetVal: 1.432 ± 0.032
0.195MetTrp: 0.195 ± 0.013
0.248MetTyr: 0.248 ± 0.013
0.0MetXaa: 0.0 ± 0.0
Asn
2.963AsnAla: 2.963 ± 0.057
0.2AsnCys: 0.2 ± 0.01
1.253AsnAsp: 1.253 ± 0.038
0.972AsnGlu: 0.972 ± 0.027
0.842AsnPhe: 0.842 ± 0.031
2.296AsnGly: 2.296 ± 0.065
0.412AsnHis: 0.412 ± 0.017
1.084AsnIle: 1.084 ± 0.036
0.506AsnLys: 0.506 ± 0.02
2.507AsnLeu: 2.507 ± 0.054
0.469AsnMet: 0.469 ± 0.017
0.633AsnAsn: 0.633 ± 0.031
1.7AsnPro: 1.7 ± 0.04
0.688AsnGln: 0.688 ± 0.027
1.651AsnArg: 1.651 ± 0.033
1.01AsnSer: 1.01 ± 0.039
1.191AsnThr: 1.191 ± 0.047
1.805AsnVal: 1.805 ± 0.053
0.381AsnTrp: 0.381 ± 0.017
0.644AsnTyr: 0.644 ± 0.027
0.0AsnXaa: 0.0 ± 0.0
Pro
7.811ProAla: 7.811 ± 0.086
0.302ProCys: 0.302 ± 0.014
3.799ProAsp: 3.799 ± 0.05
3.646ProGlu: 3.646 ± 0.057
1.964ProPhe: 1.964 ± 0.04
5.098ProGly: 5.098 ± 0.07
0.922ProHis: 0.922 ± 0.023
2.312ProIle: 2.312 ± 0.051
1.727ProLys: 1.727 ± 0.039
4.937ProLeu: 4.937 ± 0.067
1.169ProMet: 1.169 ± 0.028
1.392ProAsn: 1.392 ± 0.037
3.371ProPro: 3.371 ± 0.08
1.659ProGln: 1.659 ± 0.044
3.38ProArg: 3.38 ± 0.054
2.924ProSer: 2.924 ± 0.053
3.049ProThr: 3.049 ± 0.057
4.177ProVal: 4.177 ± 0.056
0.801ProTrp: 0.801 ± 0.028
1.186ProTyr: 1.186 ± 0.032
0.0ProXaa: 0.0 ± 0.0
Gln
4.708GlnAla: 4.708 ± 0.068
0.158GlnCys: 0.158 ± 0.011
1.482GlnAsp: 1.482 ± 0.032
1.233GlnGlu: 1.233 ± 0.03
0.932GlnPhe: 0.932 ± 0.031
2.641GlnGly: 2.641 ± 0.051
0.491GlnHis: 0.491 ± 0.018
1.528GlnIle: 1.528 ± 0.032
0.855GlnLys: 0.855 ± 0.027
2.725GlnLeu: 2.725 ± 0.045
0.718GlnMet: 0.718 ± 0.025
0.691GlnAsn: 0.691 ± 0.024
1.816GlnPro: 1.816 ± 0.041
0.976GlnGln: 0.976 ± 0.034
2.308GlnArg: 2.308 ± 0.047
1.514GlnSer: 1.514 ± 0.048
1.928GlnThr: 1.928 ± 0.042
2.428GlnVal: 2.428 ± 0.042
0.374GlnTrp: 0.374 ± 0.015
0.577GlnTyr: 0.577 ± 0.021
0.0GlnXaa: 0.0 ± 0.0
Arg
9.047ArgAla: 9.047 ± 0.102
0.454ArgCys: 0.454 ± 0.018
4.111ArgAsp: 4.111 ± 0.059
4.084ArgGlu: 4.084 ± 0.071
3.049ArgPhe: 3.049 ± 0.045
5.545ArgGly: 5.545 ± 0.07
1.323ArgHis: 1.323 ± 0.031
3.589ArgIle: 3.589 ± 0.057
2.205ArgLys: 2.205 ± 0.042
8.838ArgLeu: 8.838 ± 0.11
1.854ArgMet: 1.854 ± 0.042
1.638ArgAsn: 1.638 ± 0.037
4.325ArgPro: 4.325 ± 0.07
2.388ArgGln: 2.388 ± 0.042
6.747ArgArg: 6.747 ± 0.104
3.481ArgSer: 3.481 ± 0.055
3.741ArgThr: 3.741 ± 0.052
4.94ArgVal: 4.94 ± 0.06
1.308ArgTrp: 1.308 ± 0.032
1.798ArgTyr: 1.798 ± 0.041
0.0ArgXaa: 0.0 ± 0.0
Ser
6.416SerAla: 6.416 ± 0.073
0.317SerCys: 0.317 ± 0.017
2.788SerAsp: 2.788 ± 0.042
2.321SerGlu: 2.321 ± 0.041
1.897SerPhe: 1.897 ± 0.041
5.225SerGly: 5.225 ± 0.1
0.829SerHis: 0.829 ± 0.026
2.218SerIle: 2.218 ± 0.056
1.423SerLys: 1.423 ± 0.034
5.14SerLeu: 5.14 ± 0.071
1.036SerMet: 1.036 ± 0.027
1.274SerAsn: 1.274 ± 0.036
3.078SerPro: 3.078 ± 0.05
1.528SerGln: 1.528 ± 0.041
3.529SerArg: 3.529 ± 0.053
2.507SerSer: 2.507 ± 0.05
2.523SerThr: 2.523 ± 0.048
3.639SerVal: 3.639 ± 0.055
0.811SerTrp: 0.811 ± 0.026
1.22SerTyr: 1.22 ± 0.036
0.0SerXaa: 0.0 ± 0.0
Thr
7.211ThrAla: 7.211 ± 0.104
0.338ThrCys: 0.338 ± 0.016
2.836ThrAsp: 2.836 ± 0.065
2.313ThrGlu: 2.313 ± 0.035
1.997ThrPhe: 1.997 ± 0.044
5.537ThrGly: 5.537 ± 0.119
0.848ThrHis: 0.848 ± 0.023
2.396ThrIle: 2.396 ± 0.059
1.262ThrLys: 1.262 ± 0.034
6.042ThrLeu: 6.042 ± 0.089
0.896ThrMet: 0.896 ± 0.027
1.216ThrAsn: 1.216 ± 0.037
4.04ThrPro: 4.04 ± 0.061
1.46ThrGln: 1.46 ± 0.045
3.391ThrArg: 3.391 ± 0.049
2.556ThrSer: 2.556 ± 0.05
3.011ThrThr: 3.011 ± 0.086
4.609ThrVal: 4.609 ± 0.083
0.737ThrTrp: 0.737 ± 0.03
1.337ThrTyr: 1.337 ± 0.053
0.0ThrXaa: 0.0 ± 0.0
Val
10.009ValAla: 10.009 ± 0.089
0.593ValCys: 0.593 ± 0.02
4.477ValAsp: 4.477 ± 0.062
4.968ValGlu: 4.968 ± 0.064
2.755ValPhe: 2.755 ± 0.049
6.469ValGly: 6.469 ± 0.089
1.196ValHis: 1.196 ± 0.03
3.577ValIle: 3.577 ± 0.059
2.273ValLys: 2.273 ± 0.043
7.461ValLeu: 7.461 ± 0.086
1.623ValMet: 1.623 ± 0.035
2.007ValAsn: 2.007 ± 0.045
3.054ValPro: 3.054 ± 0.055
2.136ValGln: 2.136 ± 0.037
5.525ValArg: 5.525 ± 0.071
4.383ValSer: 4.383 ± 0.058
4.657ValThr: 4.657 ± 0.1
6.508ValVal: 6.508 ± 0.084
1.12ValTrp: 1.12 ± 0.03
1.578ValTyr: 1.578 ± 0.035
0.0ValXaa: 0.0 ± 0.0
Trp
1.647TrpAla: 1.647 ± 0.038
0.113TrpCys: 0.113 ± 0.009
0.715TrpAsp: 0.715 ± 0.024
0.639TrpGlu: 0.639 ± 0.027
0.569TrpPhe: 0.569 ± 0.022
1.133TrpGly: 1.133 ± 0.033
0.216TrpHis: 0.216 ± 0.014
0.691TrpIle: 0.691 ± 0.024
0.57TrpLys: 0.57 ± 0.02
1.782TrpLeu: 1.782 ± 0.042
0.369TrpMet: 0.369 ± 0.017
0.449TrpAsn: 0.449 ± 0.02
0.759TrpPro: 0.759 ± 0.025
0.407TrpGln: 0.407 ± 0.018
1.596TrpArg: 1.596 ± 0.037
0.987TrpSer: 0.987 ± 0.03
1.137TrpThr: 1.137 ± 0.035
0.897TrpVal: 0.897 ± 0.023
0.283TrpTrp: 0.283 ± 0.015
0.261TrpTyr: 0.261 ± 0.014
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.765TyrAla: 2.765 ± 0.054
0.184TyrCys: 0.184 ± 0.01
1.721TyrAsp: 1.721 ± 0.047
1.27TyrGlu: 1.27 ± 0.03
0.806TyrPhe: 0.806 ± 0.022
2.353TyrGly: 2.353 ± 0.043
0.353TyrHis: 0.353 ± 0.016
0.738TyrIle: 0.738 ± 0.022
0.524TyrLys: 0.524 ± 0.02
2.003TyrLeu: 2.003 ± 0.042
0.399TyrMet: 0.399 ± 0.016
0.606TyrAsn: 0.606 ± 0.026
0.988TyrPro: 0.988 ± 0.03
0.668TyrGln: 0.668 ± 0.024
1.858TyrArg: 1.858 ± 0.035
1.115TyrSer: 1.115 ± 0.04
1.021TyrThr: 1.021 ± 0.045
1.794TyrVal: 1.794 ± 0.038
0.37TyrTrp: 0.37 ± 0.015
0.575TyrTyr: 0.575 ± 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 4239 proteins (1376727 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