Amino acid dipepetide frequency for Brevundimonas sp. SH203

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
21.21AlaAla: 21.21 ± 0.258
1.131AlaCys: 1.131 ± 0.04
8.214AlaAsp: 8.214 ± 0.096
8.079AlaGlu: 8.079 ± 0.11
4.957AlaPhe: 4.957 ± 0.079
11.868AlaGly: 11.868 ± 0.126
2.258AlaHis: 2.258 ± 0.053
5.359AlaIle: 5.359 ± 0.095
3.526AlaLys: 3.526 ± 0.078
14.35AlaLeu: 14.35 ± 0.174
3.476AlaMet: 3.476 ± 0.064
2.913AlaAsn: 2.913 ± 0.067
7.567AlaPro: 7.567 ± 0.127
4.645AlaGln: 4.645 ± 0.096
10.689AlaArg: 10.689 ± 0.136
6.656AlaSer: 6.656 ± 0.089
6.339AlaThr: 6.339 ± 0.081
10.736AlaVal: 10.736 ± 0.129
1.936AlaTrp: 1.936 ± 0.051
2.881AlaTyr: 2.881 ± 0.052
0.0AlaXaa: 0.0 ± 0.0
Cys
0.936CysAla: 0.936 ± 0.031
0.053CysCys: 0.053 ± 0.007
0.449CysAsp: 0.449 ± 0.023
0.345CysGlu: 0.345 ± 0.021
0.244CysPhe: 0.244 ± 0.017
0.765CysGly: 0.765 ± 0.03
0.144CysHis: 0.144 ± 0.012
0.302CysIle: 0.302 ± 0.018
0.144CysLys: 0.144 ± 0.012
0.676CysLeu: 0.676 ± 0.027
0.093CysMet: 0.093 ± 0.01
0.166CysAsn: 0.166 ± 0.013
0.397CysPro: 0.397 ± 0.023
0.193CysGln: 0.193 ± 0.014
0.481CysArg: 0.481 ± 0.022
0.333CysSer: 0.333 ± 0.019
0.33CysThr: 0.33 ± 0.017
0.53CysVal: 0.53 ± 0.023
0.105CysTrp: 0.105 ± 0.011
0.137CysTyr: 0.137 ± 0.012
0.0CysXaa: 0.0 ± 0.0
Asp
8.441AspAla: 8.441 ± 0.107
0.38AspCys: 0.38 ± 0.022
3.661AspAsp: 3.661 ± 0.072
3.226AspGlu: 3.226 ± 0.072
2.256AspPhe: 2.256 ± 0.052
5.972AspGly: 5.972 ± 0.087
1.407AspHis: 1.407 ± 0.042
2.63AspIle: 2.63 ± 0.055
1.608AspLys: 1.608 ± 0.041
6.518AspLeu: 6.518 ± 0.084
1.343AspMet: 1.343 ± 0.035
1.18AspAsn: 1.18 ± 0.038
3.825AspPro: 3.825 ± 0.073
2.358AspGln: 2.358 ± 0.052
5.181AspArg: 5.181 ± 0.067
2.037AspSer: 2.037 ± 0.044
2.444AspThr: 2.444 ± 0.054
4.387AspVal: 4.387 ± 0.075
1.245AspTrp: 1.245 ± 0.039
1.592AspTyr: 1.592 ± 0.049
0.0AspXaa: 0.0 ± 0.0
Glu
8.608GluAla: 8.608 ± 0.129
0.22GluCys: 0.22 ± 0.016
2.838GluAsp: 2.838 ± 0.059
2.452GluGlu: 2.452 ± 0.059
1.399GluPhe: 1.399 ± 0.039
4.622GluGly: 4.622 ± 0.088
0.946GluHis: 0.946 ± 0.031
2.785GluIle: 2.785 ± 0.055
1.775GluLys: 1.775 ± 0.047
4.392GluLeu: 4.392 ± 0.083
1.268GluMet: 1.268 ± 0.042
1.293GluAsn: 1.293 ± 0.037
2.738GluPro: 2.738 ± 0.062
2.009GluGln: 2.009 ± 0.049
4.839GluArg: 4.839 ± 0.08
1.903GluSer: 1.903 ± 0.044
3.716GluThr: 3.716 ± 0.068
3.788GluVal: 3.788 ± 0.068
0.676GluTrp: 0.676 ± 0.028
0.864GluTyr: 0.864 ± 0.031
0.0GluXaa: 0.0 ± 0.0
Phe
4.495PheAla: 4.495 ± 0.076
0.309PheCys: 0.309 ± 0.018
2.91PheAsp: 2.91 ± 0.064
2.103PheGlu: 2.103 ± 0.047
1.151PhePhe: 1.151 ± 0.05
3.539PheGly: 3.539 ± 0.075
0.651PheHis: 0.651 ± 0.025
1.438PheIle: 1.438 ± 0.037
0.943PheLys: 0.943 ± 0.034
2.91PheLeu: 2.91 ± 0.063
0.777PheMet: 0.777 ± 0.031
1.068PheAsn: 1.068 ± 0.038
1.332PhePro: 1.332 ± 0.04
1.078PheGln: 1.078 ± 0.036
2.111PheArg: 2.111 ± 0.05
1.936PheSer: 1.936 ± 0.052
1.921PheThr: 1.921 ± 0.041
2.728PheVal: 2.728 ± 0.057
0.536PheTrp: 0.536 ± 0.029
0.834PheTyr: 0.834 ± 0.027
0.0PheXaa: 0.0 ± 0.0
Gly
11.451GlyAla: 11.451 ± 0.121
0.7GlyCys: 0.7 ± 0.026
5.337GlyAsp: 5.337 ± 0.087
4.969GlyGlu: 4.969 ± 0.075
3.699GlyPhe: 3.699 ± 0.07
8.443GlyGly: 8.443 ± 0.129
1.529GlyHis: 1.529 ± 0.039
2.75GlyIle: 2.75 ± 0.06
2.683GlyLys: 2.683 ± 0.06
9.883GlyLeu: 9.883 ± 0.129
2.2GlyMet: 2.2 ± 0.052
1.551GlyAsn: 1.551 ± 0.046
4.079GlyPro: 4.079 ± 0.07
3.32GlyGln: 3.32 ± 0.059
7.446GlyArg: 7.446 ± 0.093
4.301GlySer: 4.301 ± 0.084
3.322GlyThr: 3.322 ± 0.069
8.241GlyVal: 8.241 ± 0.094
1.751GlyTrp: 1.751 ± 0.047
2.158GlyTyr: 2.158 ± 0.048
0.0GlyXaa: 0.0 ± 0.0
His
2.334HisAla: 2.334 ± 0.053
0.15HisCys: 0.15 ± 0.012
1.208HisAsp: 1.208 ± 0.035
0.941HisGlu: 0.941 ± 0.03
0.602HisPhe: 0.602 ± 0.027
1.802HisGly: 1.802 ± 0.047
0.423HisHis: 0.423 ± 0.023
0.695HisIle: 0.695 ± 0.028
0.395HisLys: 0.395 ± 0.023
1.706HisLeu: 1.706 ± 0.046
0.429HisMet: 0.429 ± 0.022
0.362HisAsn: 0.362 ± 0.02
1.187HisPro: 1.187 ± 0.039
0.566HisGln: 0.566 ± 0.024
1.251HisArg: 1.251 ± 0.039
0.731HisSer: 0.731 ± 0.03
0.706HisThr: 0.706 ± 0.03
1.335HisVal: 1.335 ± 0.038
0.301HisTrp: 0.301 ± 0.018
0.438HisTyr: 0.438 ± 0.021
0.0HisXaa: 0.0 ± 0.0
Ile
6.52IleAla: 6.52 ± 0.093
0.356IleCys: 0.356 ± 0.018
3.464IleAsp: 3.464 ± 0.069
3.022IleGlu: 3.022 ± 0.072
1.224IlePhe: 1.224 ± 0.037
4.444IleGly: 4.444 ± 0.078
0.783IleHis: 0.783 ± 0.032
1.53IleIle: 1.53 ± 0.043
1.217IleLys: 1.217 ± 0.037
3.791IleLeu: 3.791 ± 0.071
0.786IleMet: 0.786 ± 0.03
1.15IleAsn: 1.15 ± 0.039
1.837IlePro: 1.837 ± 0.047
1.311IleGln: 1.311 ± 0.04
2.933IleArg: 2.933 ± 0.058
2.121IleSer: 2.121 ± 0.046
2.172IleThr: 2.172 ± 0.051
3.818IleVal: 3.818 ± 0.074
0.556IleTrp: 0.556 ± 0.025
0.872IleTyr: 0.872 ± 0.029
0.0IleXaa: 0.0 ± 0.0
Lys
4.441LysAla: 4.441 ± 0.078
0.114LysCys: 0.114 ± 0.011
1.574LysAsp: 1.574 ± 0.042
1.127LysGlu: 1.127 ± 0.038
0.722LysPhe: 0.722 ± 0.023
2.526LysGly: 2.526 ± 0.057
0.448LysHis: 0.448 ± 0.023
1.325LysIle: 1.325 ± 0.038
1.054LysLys: 1.054 ± 0.039
2.557LysLeu: 2.557 ± 0.06
0.588LysMet: 0.588 ± 0.026
0.667LysAsn: 0.667 ± 0.027
1.946LysPro: 1.946 ± 0.057
0.805LysGln: 0.805 ± 0.031
2.06LysArg: 2.06 ± 0.047
1.6LysSer: 1.6 ± 0.043
2.044LysThr: 2.044 ± 0.054
2.097LysVal: 2.097 ± 0.051
0.344LysTrp: 0.344 ± 0.018
0.544LysTyr: 0.544 ± 0.025
0.0LysXaa: 0.0 ± 0.0
Leu
13.573LeuAla: 13.573 ± 0.161
0.67LeuCys: 0.67 ± 0.028
6.401LeuAsp: 6.401 ± 0.096
4.969LeuGlu: 4.969 ± 0.076
3.452LeuPhe: 3.452 ± 0.068
8.069LeuGly: 8.069 ± 0.121
1.62LeuHis: 1.62 ± 0.05
5.334LeuIle: 5.334 ± 0.088
3.818LeuLys: 3.818 ± 0.068
8.255LeuLeu: 8.255 ± 0.128
2.396LeuMet: 2.396 ± 0.06
3.016LeuAsn: 3.016 ± 0.063
4.952LeuPro: 4.952 ± 0.069
2.672LeuGln: 2.672 ± 0.049
6.389LeuArg: 6.389 ± 0.084
6.293LeuSer: 6.293 ± 0.083
6.526LeuThr: 6.526 ± 0.078
6.476LeuVal: 6.476 ± 0.09
1.245LeuTrp: 1.245 ± 0.044
2.004LeuTyr: 2.004 ± 0.05
0.0LeuXaa: 0.0 ± 0.0
Met
3.351MetAla: 3.351 ± 0.069
0.105MetCys: 0.105 ± 0.01
1.164MetAsp: 1.164 ± 0.035
0.937MetGlu: 0.937 ± 0.035
0.652MetPhe: 0.652 ± 0.028
1.98MetGly: 1.98 ± 0.049
0.364MetHis: 0.364 ± 0.021
1.25MetIle: 1.25 ± 0.038
0.885MetLys: 0.885 ± 0.035
1.988MetLeu: 1.988 ± 0.045
0.613MetMet: 0.613 ± 0.027
0.706MetAsn: 0.706 ± 0.031
1.116MetPro: 1.116 ± 0.034
0.751MetGln: 0.751 ± 0.028
1.728MetArg: 1.728 ± 0.042
1.541MetSer: 1.541 ± 0.041
2.074MetThr: 2.074 ± 0.046
1.43MetVal: 1.43 ± 0.041
0.191MetTrp: 0.191 ± 0.013
0.229MetTyr: 0.229 ± 0.015
0.0MetXaa: 0.0 ± 0.0
Asn
3.401AsnAla: 3.401 ± 0.069
0.177AsnCys: 0.177 ± 0.014
1.38AsnAsp: 1.38 ± 0.045
0.995AsnGlu: 0.995 ± 0.034
0.761AsnPhe: 0.761 ± 0.029
2.445AsnGly: 2.445 ± 0.058
0.475AsnHis: 0.475 ± 0.024
1.107AsnIle: 1.107 ± 0.039
0.514AsnLys: 0.514 ± 0.025
2.586AsnLeu: 2.586 ± 0.061
0.519AsnMet: 0.519 ± 0.023
0.592AsnAsn: 0.592 ± 0.032
1.741AsnPro: 1.741 ± 0.053
0.769AsnGln: 0.769 ± 0.033
1.774AsnArg: 1.774 ± 0.047
1.012AsnSer: 1.012 ± 0.041
1.203AsnThr: 1.203 ± 0.039
1.84AsnVal: 1.84 ± 0.052
0.357AsnTrp: 0.357 ± 0.02
0.636AsnTyr: 0.636 ± 0.032
0.0AsnXaa: 0.0 ± 0.0
Pro
7.505ProAla: 7.505 ± 0.124
0.308ProCys: 0.308 ± 0.019
3.954ProAsp: 3.954 ± 0.076
3.535ProGlu: 3.535 ± 0.069
1.976ProPhe: 1.976 ± 0.052
4.842ProGly: 4.842 ± 0.071
0.984ProHis: 0.984 ± 0.033
2.199ProIle: 2.199 ± 0.04
1.427ProLys: 1.427 ± 0.039
4.789ProLeu: 4.789 ± 0.065
1.091ProMet: 1.091 ± 0.036
1.405ProAsn: 1.405 ± 0.04
2.805ProPro: 2.805 ± 0.09
1.781ProGln: 1.781 ± 0.049
3.315ProArg: 3.315 ± 0.066
2.854ProSer: 2.854 ± 0.065
2.944ProThr: 2.944 ± 0.066
4.51ProVal: 4.51 ± 0.078
0.777ProTrp: 0.777 ± 0.029
1.173ProTyr: 1.173 ± 0.036
0.0ProXaa: 0.0 ± 0.0
Gln
5.317GlnAla: 5.317 ± 0.081
0.146GlnCys: 0.146 ± 0.012
1.628GlnAsp: 1.628 ± 0.044
1.232GlnGlu: 1.232 ± 0.035
0.952GlnPhe: 0.952 ± 0.034
2.917GlnGly: 2.917 ± 0.062
0.549GlnHis: 0.549 ± 0.024
1.681GlnIle: 1.681 ± 0.037
0.964GlnLys: 0.964 ± 0.03
2.613GlnLeu: 2.613 ± 0.053
0.878GlnMet: 0.878 ± 0.032
0.826GlnAsn: 0.826 ± 0.031
2.042GlnPro: 2.042 ± 0.049
1.131GlnGln: 1.131 ± 0.039
2.416GlnArg: 2.416 ± 0.065
1.775GlnSer: 1.775 ± 0.044
2.276GlnThr: 2.276 ± 0.055
2.448GlnVal: 2.448 ± 0.059
0.412GlnTrp: 0.412 ± 0.024
0.593GlnTyr: 0.593 ± 0.03
0.0GlnXaa: 0.0 ± 0.0
Arg
9.359ArgAla: 9.359 ± 0.126
0.415ArgCys: 0.415 ± 0.019
4.54ArgAsp: 4.54 ± 0.078
3.799ArgGlu: 3.799 ± 0.076
3.055ArgPhe: 3.055 ± 0.06
5.31ArgGly: 5.31 ± 0.082
1.366ArgHis: 1.366 ± 0.039
3.92ArgIle: 3.92 ± 0.073
1.942ArgLys: 1.942 ± 0.051
8.981ArgLeu: 8.981 ± 0.125
1.94ArgMet: 1.94 ± 0.046
1.761ArgAsn: 1.761 ± 0.047
4.474ArgPro: 4.474 ± 0.084
2.629ArgGln: 2.629 ± 0.061
6.619ArgArg: 6.619 ± 0.116
3.466ArgSer: 3.466 ± 0.07
3.773ArgThr: 3.773 ± 0.062
5.139ArgVal: 5.139 ± 0.075
1.194ArgTrp: 1.194 ± 0.034
1.764ArgTyr: 1.764 ± 0.044
0.0ArgXaa: 0.0 ± 0.0
Ser
6.45SerAla: 6.45 ± 0.088
0.297SerCys: 0.297 ± 0.019
3.115SerAsp: 3.115 ± 0.066
2.321SerGlu: 2.321 ± 0.052
1.684SerPhe: 1.684 ± 0.041
5.236SerGly: 5.236 ± 0.095
0.915SerHis: 0.915 ± 0.034
2.234SerIle: 2.234 ± 0.053
1.329SerLys: 1.329 ± 0.036
4.989SerLeu: 4.989 ± 0.083
1.104SerMet: 1.104 ± 0.035
1.297SerAsn: 1.297 ± 0.04
2.995SerPro: 2.995 ± 0.062
1.589SerGln: 1.589 ± 0.041
3.7SerArg: 3.7 ± 0.063
2.6SerSer: 2.6 ± 0.062
2.594SerThr: 2.594 ± 0.063
3.766SerVal: 3.766 ± 0.075
0.718SerTrp: 0.718 ± 0.032
1.106SerTyr: 1.106 ± 0.039
0.0SerXaa: 0.0 ± 0.0
Thr
7.21ThrAla: 7.21 ± 0.097
0.349ThrCys: 0.349 ± 0.018
3.14ThrAsp: 3.14 ± 0.057
2.417ThrGlu: 2.417 ± 0.05
1.759ThrPhe: 1.759 ± 0.05
5.317ThrGly: 5.317 ± 0.075
0.882ThrHis: 0.882 ± 0.032
2.178ThrIle: 2.178 ± 0.049
1.215ThrLys: 1.215 ± 0.035
5.906ThrLeu: 5.906 ± 0.084
0.933ThrMet: 0.933 ± 0.031
1.283ThrAsn: 1.283 ± 0.049
4.348ThrPro: 4.348 ± 0.077
1.629ThrGln: 1.629 ± 0.042
3.542ThrArg: 3.542 ± 0.056
2.446ThrSer: 2.446 ± 0.05
3.108ThrThr: 3.108 ± 0.07
4.46ThrVal: 4.46 ± 0.067
0.665ThrTrp: 0.665 ± 0.026
1.187ThrTyr: 1.187 ± 0.042
0.0ThrXaa: 0.0 ± 0.0
Val
10.003ValAla: 10.003 ± 0.133
0.643ValCys: 0.643 ± 0.027
4.445ValAsp: 4.445 ± 0.069
4.921ValGlu: 4.921 ± 0.083
2.88ValPhe: 2.88 ± 0.06
6.343ValGly: 6.343 ± 0.082
1.238ValHis: 1.238 ± 0.041
3.741ValIle: 3.741 ± 0.064
2.143ValLys: 2.143 ± 0.052
7.563ValLeu: 7.563 ± 0.1
1.818ValMet: 1.818 ± 0.043
2.036ValAsn: 2.036 ± 0.049
3.048ValPro: 3.048 ± 0.065
2.456ValGln: 2.456 ± 0.059
5.598ValArg: 5.598 ± 0.086
4.308ValSer: 4.308 ± 0.07
4.526ValThr: 4.526 ± 0.075
6.812ValVal: 6.812 ± 0.11
1.135ValTrp: 1.135 ± 0.041
1.427ValTyr: 1.427 ± 0.039
0.0ValXaa: 0.0 ± 0.0
Trp
1.53TrpAla: 1.53 ± 0.051
0.121TrpCys: 0.121 ± 0.012
0.714TrpAsp: 0.714 ± 0.029
0.557TrpGlu: 0.557 ± 0.024
0.573TrpPhe: 0.573 ± 0.029
1.106TrpGly: 1.106 ± 0.035
0.223TrpHis: 0.223 ± 0.016
0.728TrpIle: 0.728 ± 0.028
0.478TrpLys: 0.478 ± 0.024
1.74TrpLeu: 1.74 ± 0.048
0.413TrpMet: 0.413 ± 0.022
0.462TrpAsn: 0.462 ± 0.025
0.765TrpPro: 0.765 ± 0.034
0.412TrpGln: 0.412 ± 0.019
1.534TrpArg: 1.534 ± 0.045
0.998TrpSer: 0.998 ± 0.035
1.059TrpThr: 1.059 ± 0.038
0.817TrpVal: 0.817 ± 0.026
0.266TrpTrp: 0.266 ± 0.02
0.252TrpTyr: 0.252 ± 0.017
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.656TyrAla: 2.656 ± 0.051
0.18TyrCys: 0.18 ± 0.016
1.557TyrAsp: 1.557 ± 0.054
1.182TyrGlu: 1.182 ± 0.036
0.771TyrPhe: 0.771 ± 0.029
2.268TyrGly: 2.268 ± 0.051
0.357TyrHis: 0.357 ± 0.019
0.724TyrIle: 0.724 ± 0.034
0.524TyrLys: 0.524 ± 0.026
1.938TyrLeu: 1.938 ± 0.045
0.389TyrMet: 0.389 ± 0.021
0.553TyrAsn: 0.553 ± 0.03
0.978TyrPro: 0.978 ± 0.034
0.693TyrGln: 0.693 ± 0.023
1.836TyrArg: 1.836 ± 0.046
1.125TyrSer: 1.125 ± 0.039
0.899TyrThr: 0.899 ± 0.035
1.723TyrVal: 1.723 ± 0.043
0.337TyrTrp: 0.337 ± 0.02
0.513TyrTyr: 0.513 ± 0.027
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 2958 proteins (942333 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