Amino acid dipepetide frequency for Cellulomonas sp. WB94

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
22.624AlaAla: 22.624 ± 0.222
0.886AlaCys: 0.886 ± 0.034
8.656AlaAsp: 8.656 ± 0.091
7.186AlaGlu: 7.186 ± 0.087
3.593AlaPhe: 3.593 ± 0.061
13.789AlaGly: 13.789 ± 0.101
2.861AlaHis: 2.861 ± 0.052
4.927AlaIle: 4.927 ± 0.068
2.201AlaLys: 2.201 ± 0.055
14.923AlaLeu: 14.923 ± 0.136
2.612AlaMet: 2.612 ± 0.052
2.082AlaAsn: 2.082 ± 0.055
7.191AlaPro: 7.191 ± 0.099
4.135AlaGln: 4.135 ± 0.064
10.761AlaArg: 10.761 ± 0.115
7.338AlaSer: 7.338 ± 0.087
8.792AlaThr: 8.792 ± 0.109
13.259AlaVal: 13.259 ± 0.126
2.118AlaTrp: 2.118 ± 0.048
2.392AlaTyr: 2.392 ± 0.053
0.0AlaXaa: 0.0 ± 0.0
Cys
0.784CysAla: 0.784 ± 0.03
0.067CysCys: 0.067 ± 0.008
0.36CysAsp: 0.36 ± 0.019
0.283CysGlu: 0.283 ± 0.019
0.176CysPhe: 0.176 ± 0.011
0.662CysGly: 0.662 ± 0.025
0.121CysHis: 0.121 ± 0.012
0.173CysIle: 0.173 ± 0.012
0.066CysLys: 0.066 ± 0.008
0.518CysLeu: 0.518 ± 0.024
0.084CysMet: 0.084 ± 0.009
0.097CysAsn: 0.097 ± 0.009
0.395CysPro: 0.395 ± 0.021
0.135CysGln: 0.135 ± 0.011
0.466CysArg: 0.466 ± 0.023
0.409CysSer: 0.409 ± 0.023
0.435CysThr: 0.435 ± 0.023
0.546CysVal: 0.546 ± 0.025
0.099CysTrp: 0.099 ± 0.011
0.111CysTyr: 0.111 ± 0.01
0.0CysXaa: 0.0 ± 0.0
Asp
9.087AspAla: 9.087 ± 0.099
0.281AspCys: 0.281 ± 0.017
4.365AspAsp: 4.365 ± 0.082
3.875AspGlu: 3.875 ± 0.063
1.396AspPhe: 1.396 ± 0.039
6.419AspGly: 6.419 ± 0.087
1.323AspHis: 1.323 ± 0.03
1.843AspIle: 1.843 ± 0.039
0.887AspLys: 0.887 ± 0.032
6.92AspLeu: 6.92 ± 0.091
0.74AspMet: 0.74 ± 0.024
0.865AspAsn: 0.865 ± 0.03
4.361AspPro: 4.361 ± 0.07
1.556AspGln: 1.556 ± 0.043
4.521AspArg: 4.521 ± 0.075
2.379AspSer: 2.379 ± 0.05
2.82AspThr: 2.82 ± 0.05
6.592AspVal: 6.592 ± 0.087
0.837AspTrp: 0.837 ± 0.03
1.024AspTyr: 1.024 ± 0.031
0.0AspXaa: 0.0 ± 0.0
Glu
6.243GluAla: 6.243 ± 0.09
0.25GluCys: 0.25 ± 0.017
2.328GluAsp: 2.328 ± 0.048
2.113GluGlu: 2.113 ± 0.052
1.195GluPhe: 1.195 ± 0.033
3.333GluGly: 3.333 ± 0.063
1.541GluHis: 1.541 ± 0.041
2.256GluIle: 2.256 ± 0.046
0.906GluLys: 0.906 ± 0.032
6.436GluLeu: 6.436 ± 0.083
0.784GluMet: 0.784 ± 0.031
0.878GluAsn: 0.878 ± 0.029
3.103GluPro: 3.103 ± 0.059
1.942GluGln: 1.942 ± 0.042
4.623GluArg: 4.623 ± 0.085
2.327GluSer: 2.327 ± 0.045
2.448GluThr: 2.448 ± 0.055
4.863GluVal: 4.863 ± 0.066
0.63GluTrp: 0.63 ± 0.024
0.878GluTyr: 0.878 ± 0.031
0.0GluXaa: 0.0 ± 0.0
Phe
3.81PheAla: 3.81 ± 0.065
0.202PheCys: 0.202 ± 0.012
1.959PheAsp: 1.959 ± 0.042
1.41PheGlu: 1.41 ± 0.042
0.8PhePhe: 0.8 ± 0.031
2.929PheGly: 2.929 ± 0.057
0.502PheHis: 0.502 ± 0.026
0.824PheIle: 0.824 ± 0.032
0.434PheLys: 0.434 ± 0.022
2.368PheLeu: 2.368 ± 0.05
0.387PheMet: 0.387 ± 0.02
0.501PheAsn: 0.501 ± 0.02
1.197PhePro: 1.197 ± 0.036
0.655PheGln: 0.655 ± 0.025
1.603PheArg: 1.603 ± 0.042
1.424PheSer: 1.424 ± 0.039
1.892PheThr: 1.892 ± 0.045
2.51PheVal: 2.51 ± 0.051
0.4PheTrp: 0.4 ± 0.019
0.553PheTyr: 0.553 ± 0.026
0.0PheXaa: 0.0 ± 0.0
Gly
11.713GlyAla: 11.713 ± 0.118
0.639GlyCys: 0.639 ± 0.03
5.033GlyAsp: 5.033 ± 0.08
4.275GlyGlu: 4.275 ± 0.071
2.776GlyPhe: 2.776 ± 0.052
7.98GlyGly: 7.98 ± 0.106
2.108GlyHis: 2.108 ± 0.047
3.733GlyIle: 3.733 ± 0.063
1.893GlyLys: 1.893 ± 0.051
9.71GlyLeu: 9.71 ± 0.089
1.847GlyMet: 1.847 ± 0.047
1.446GlyAsn: 1.446 ± 0.041
4.991GlyPro: 4.991 ± 0.085
2.608GlyGln: 2.608 ± 0.048
7.1GlyArg: 7.1 ± 0.09
5.775GlySer: 5.775 ± 0.085
6.468GlyThr: 6.468 ± 0.093
8.586GlyVal: 8.586 ± 0.085
1.639GlyTrp: 1.639 ± 0.038
2.133GlyTyr: 2.133 ± 0.046
0.0GlyXaa: 0.0 ± 0.0
His
2.739HisAla: 2.739 ± 0.058
0.147HisCys: 0.147 ± 0.012
1.455HisAsp: 1.455 ± 0.037
1.171HisGlu: 1.171 ± 0.032
0.509HisPhe: 0.509 ± 0.021
2.207HisGly: 2.207 ± 0.05
0.591HisHis: 0.591 ± 0.026
0.582HisIle: 0.582 ± 0.026
0.271HisLys: 0.271 ± 0.016
2.351HisLeu: 2.351 ± 0.043
0.297HisMet: 0.297 ± 0.018
0.351HisAsn: 0.351 ± 0.017
1.571HisPro: 1.571 ± 0.041
0.557HisGln: 0.557 ± 0.023
1.766HisArg: 1.766 ± 0.047
0.857HisSer: 0.857 ± 0.024
1.062HisThr: 1.062 ± 0.032
2.094HisVal: 2.094 ± 0.05
0.28HisTrp: 0.28 ± 0.016
0.378HisTyr: 0.378 ± 0.02
0.0HisXaa: 0.0 ± 0.0
Ile
5.596IleAla: 5.596 ± 0.074
0.218IleCys: 0.218 ± 0.014
2.868IleAsp: 2.868 ± 0.047
2.176IleGlu: 2.176 ± 0.045
0.817IlePhe: 0.817 ± 0.028
3.955IleGly: 3.955 ± 0.075
0.554IleHis: 0.554 ± 0.023
1.134IleIle: 1.134 ± 0.04
0.685IleLys: 0.685 ± 0.028
2.758IleLeu: 2.758 ± 0.055
0.499IleMet: 0.499 ± 0.026
0.734IleAsn: 0.734 ± 0.032
1.857IlePro: 1.857 ± 0.039
0.75IleGln: 0.75 ± 0.027
2.136IleArg: 2.136 ± 0.043
1.843IleSer: 1.843 ± 0.042
2.329IleThr: 2.329 ± 0.047
3.548IleVal: 3.548 ± 0.061
0.385IleTrp: 0.385 ± 0.023
0.573IleTyr: 0.573 ± 0.025
0.0IleXaa: 0.0 ± 0.0
Lys
2.17LysAla: 2.17 ± 0.061
0.071LysCys: 0.071 ± 0.008
0.973LysAsp: 0.973 ± 0.036
0.715LysGlu: 0.715 ± 0.028
0.402LysPhe: 0.402 ± 0.019
1.288LysGly: 1.288 ± 0.041
0.323LysHis: 0.323 ± 0.02
0.825LysIle: 0.825 ± 0.03
0.498LysLys: 0.498 ± 0.024
1.509LysLeu: 1.509 ± 0.042
0.273LysMet: 0.273 ± 0.017
0.399LysAsn: 0.399 ± 0.018
0.919LysPro: 0.919 ± 0.031
0.503LysGln: 0.503 ± 0.022
1.08LysArg: 1.08 ± 0.037
0.926LysSer: 0.926 ± 0.034
1.0LysThr: 1.0 ± 0.034
1.622LysVal: 1.622 ± 0.047
0.192LysTrp: 0.192 ± 0.014
0.367LysTyr: 0.367 ± 0.019
0.0LysXaa: 0.0 ± 0.0
Leu
16.673LeuAla: 16.673 ± 0.146
0.587LeuCys: 0.587 ± 0.023
7.18LeuAsp: 7.18 ± 0.091
4.861LeuGlu: 4.861 ± 0.079
2.352LeuPhe: 2.352 ± 0.054
9.695LeuGly: 9.695 ± 0.112
2.06LeuHis: 2.06 ± 0.047
3.135LeuIle: 3.135 ± 0.064
1.429LeuLys: 1.429 ± 0.039
10.651LeuLeu: 10.651 ± 0.134
1.577LeuMet: 1.577 ± 0.039
1.521LeuAsn: 1.521 ± 0.033
5.647LeuPro: 5.647 ± 0.07
2.307LeuGln: 2.307 ± 0.044
7.871LeuArg: 7.871 ± 0.092
5.188LeuSer: 5.188 ± 0.076
7.029LeuThr: 7.029 ± 0.092
11.215LeuVal: 11.215 ± 0.126
1.204LeuTrp: 1.204 ± 0.036
1.576LeuTyr: 1.576 ± 0.036
0.0LeuXaa: 0.0 ± 0.0
Met
2.145MetAla: 2.145 ± 0.046
0.107MetCys: 0.107 ± 0.01
0.854MetAsp: 0.854 ± 0.028
0.532MetGlu: 0.532 ± 0.024
0.498MetPhe: 0.498 ± 0.023
1.232MetGly: 1.232 ± 0.035
0.36MetHis: 0.36 ± 0.017
0.692MetIle: 0.692 ± 0.029
0.311MetLys: 0.311 ± 0.017
1.717MetLeu: 1.717 ± 0.038
0.288MetMet: 0.288 ± 0.016
0.381MetAsn: 0.381 ± 0.018
1.035MetPro: 1.035 ± 0.032
0.407MetGln: 0.407 ± 0.019
1.352MetArg: 1.352 ± 0.034
1.387MetSer: 1.387 ± 0.034
1.71MetThr: 1.71 ± 0.04
1.374MetVal: 1.374 ± 0.035
0.196MetTrp: 0.196 ± 0.013
0.271MetTyr: 0.271 ± 0.015
0.0MetXaa: 0.0 ± 0.0
Asn
2.119AsnAla: 2.119 ± 0.048
0.107AsnCys: 0.107 ± 0.011
0.982AsnAsp: 0.982 ± 0.033
0.673AsnGlu: 0.673 ± 0.025
0.459AsnPhe: 0.459 ± 0.022
1.661AsnGly: 1.661 ± 0.045
0.372AsnHis: 0.372 ± 0.019
0.605AsnIle: 0.605 ± 0.027
0.332AsnLys: 0.332 ± 0.018
1.82AsnLeu: 1.82 ± 0.043
0.227AsnMet: 0.227 ± 0.014
0.371AsnAsn: 0.371 ± 0.022
1.31AsnPro: 1.31 ± 0.033
0.484AsnGln: 0.484 ± 0.025
1.088AsnArg: 1.088 ± 0.031
0.76AsnSer: 0.76 ± 0.031
0.916AsnThr: 0.916 ± 0.031
1.522AsnVal: 1.522 ± 0.04
0.216AsnTrp: 0.216 ± 0.014
0.392AsnTyr: 0.392 ± 0.022
0.0AsnXaa: 0.0 ± 0.0
Pro
8.327ProAla: 8.327 ± 0.092
0.263ProCys: 0.263 ± 0.016
4.415ProAsp: 4.415 ± 0.079
3.167ProGlu: 3.167 ± 0.058
1.576ProPhe: 1.576 ± 0.039
5.939ProGly: 5.939 ± 0.088
1.129ProHis: 1.129 ± 0.036
1.602ProIle: 1.602 ± 0.037
0.733ProLys: 0.733 ± 0.029
4.913ProLeu: 4.913 ± 0.066
0.97ProMet: 0.97 ± 0.025
0.882ProAsn: 0.882 ± 0.029
2.755ProPro: 2.755 ± 0.059
1.464ProGln: 1.464 ± 0.04
3.758ProArg: 3.758 ± 0.073
3.382ProSer: 3.382 ± 0.053
4.098ProThr: 4.098 ± 0.078
5.77ProVal: 5.77 ± 0.077
0.876ProTrp: 0.876 ± 0.029
1.052ProTyr: 1.052 ± 0.032
0.0ProXaa: 0.0 ± 0.0
Gln
3.592GlnAla: 3.592 ± 0.065
0.134GlnCys: 0.134 ± 0.01
1.301GlnAsp: 1.301 ± 0.031
1.064GlnGlu: 1.064 ± 0.035
0.693GlnPhe: 0.693 ± 0.025
2.087GlnGly: 2.087 ± 0.04
0.657GlnHis: 0.657 ± 0.024
1.221GlnIle: 1.221 ± 0.035
0.457GlnLys: 0.457 ± 0.024
3.134GlnLeu: 3.134 ± 0.06
0.474GlnMet: 0.474 ± 0.023
0.432GlnAsn: 0.432 ± 0.021
1.536GlnPro: 1.536 ± 0.038
1.001GlnGln: 1.001 ± 0.03
2.252GlnArg: 2.252 ± 0.056
1.354GlnSer: 1.354 ± 0.035
1.518GlnThr: 1.518 ± 0.034
2.998GlnVal: 2.998 ± 0.06
0.433GlnTrp: 0.433 ± 0.02
0.583GlnTyr: 0.583 ± 0.024
0.0GlnXaa: 0.0 ± 0.0
Arg
10.355ArgAla: 10.355 ± 0.123
0.445ArgCys: 0.445 ± 0.026
4.127ArgAsp: 4.127 ± 0.065
3.872ArgGlu: 3.872 ± 0.064
2.054ArgPhe: 2.054 ± 0.04
5.858ArgGly: 5.858 ± 0.086
1.725ArgHis: 1.725 ± 0.038
2.998ArgIle: 2.998 ± 0.045
1.106ArgLys: 1.106 ± 0.036
7.865ArgLeu: 7.865 ± 0.109
1.582ArgMet: 1.582 ± 0.034
1.108ArgAsn: 1.108 ± 0.033
4.313ArgPro: 4.313 ± 0.072
1.961ArgGln: 1.961 ± 0.044
7.417ArgArg: 7.417 ± 0.125
4.618ArgSer: 4.618 ± 0.075
5.085ArgThr: 5.085 ± 0.071
6.559ArgVal: 6.559 ± 0.085
1.401ArgTrp: 1.401 ± 0.034
1.59ArgTyr: 1.59 ± 0.043
0.0ArgXaa: 0.0 ± 0.0
Ser
7.493SerAla: 7.493 ± 0.089
0.333SerCys: 0.333 ± 0.017
3.042SerAsp: 3.042 ± 0.048
2.301SerGlu: 2.301 ± 0.048
1.561SerPhe: 1.561 ± 0.045
5.725SerGly: 5.725 ± 0.084
0.998SerHis: 0.998 ± 0.03
2.039SerIle: 2.039 ± 0.046
0.853SerLys: 0.853 ± 0.032
5.063SerLeu: 5.063 ± 0.064
1.186SerMet: 1.186 ± 0.032
0.89SerAsn: 0.89 ± 0.03
3.229SerPro: 3.229 ± 0.062
1.357SerGln: 1.357 ± 0.034
3.788SerArg: 3.788 ± 0.061
3.469SerSer: 3.469 ± 0.065
3.921SerThr: 3.921 ± 0.07
4.808SerVal: 4.808 ± 0.06
1.01SerTrp: 1.01 ± 0.034
1.099SerTyr: 1.099 ± 0.035
0.0SerXaa: 0.0 ± 0.0
Thr
8.773ThrAla: 8.773 ± 0.118
0.384ThrCys: 0.384 ± 0.024
3.729ThrAsp: 3.729 ± 0.058
2.838ThrGlu: 2.838 ± 0.057
1.953ThrPhe: 1.953 ± 0.048
6.401ThrGly: 6.401 ± 0.078
1.31ThrHis: 1.31 ± 0.04
2.411ThrIle: 2.411 ± 0.052
1.043ThrLys: 1.043 ± 0.032
6.228ThrLeu: 6.228 ± 0.074
0.998ThrMet: 0.998 ± 0.027
1.125ThrAsn: 1.125 ± 0.035
4.265ThrPro: 4.265 ± 0.077
1.608ThrGln: 1.608 ± 0.04
4.16ThrArg: 4.16 ± 0.063
4.057ThrSer: 4.057 ± 0.06
4.816ThrThr: 4.816 ± 0.083
6.64ThrVal: 6.64 ± 0.085
1.054ThrTrp: 1.054 ± 0.029
1.294ThrTyr: 1.294 ± 0.038
0.0ThrXaa: 0.0 ± 0.0
Val
13.951ValAla: 13.951 ± 0.134
0.612ValCys: 0.612 ± 0.026
6.384ValAsp: 6.384 ± 0.079
5.095ValGlu: 5.095 ± 0.078
2.417ValPhe: 2.417 ± 0.052
8.513ValGly: 8.513 ± 0.086
2.02ValHis: 2.02 ± 0.043
3.405ValIle: 3.405 ± 0.065
1.392ValLys: 1.392 ± 0.038
11.044ValLeu: 11.044 ± 0.12
1.512ValMet: 1.512 ± 0.042
1.641ValAsn: 1.641 ± 0.044
5.656ValPro: 5.656 ± 0.073
2.373ValGln: 2.373 ± 0.054
7.499ValArg: 7.499 ± 0.102
4.696ValSer: 4.696 ± 0.07
6.625ValThr: 6.625 ± 0.082
11.819ValVal: 11.819 ± 0.146
1.229ValTrp: 1.229 ± 0.032
1.489ValTyr: 1.489 ± 0.039
0.0ValXaa: 0.0 ± 0.0
Trp
1.709TrpAla: 1.709 ± 0.043
0.129TrpCys: 0.129 ± 0.012
0.865TrpAsp: 0.865 ± 0.031
0.553TrpGlu: 0.553 ± 0.022
0.548TrpPhe: 0.548 ± 0.024
1.059TrpGly: 1.059 ± 0.03
0.384TrpHis: 0.384 ± 0.016
0.521TrpIle: 0.521 ± 0.02
0.246TrpLys: 0.246 ± 0.015
1.693TrpLeu: 1.693 ± 0.043
0.293TrpMet: 0.293 ± 0.016
0.351TrpAsn: 0.351 ± 0.018
0.734TrpPro: 0.734 ± 0.027
0.531TrpGln: 0.531 ± 0.025
1.224TrpArg: 1.224 ± 0.032
1.044TrpSer: 1.044 ± 0.031
1.059TrpThr: 1.059 ± 0.033
1.281TrpVal: 1.281 ± 0.037
0.378TrpTrp: 0.378 ± 0.02
0.279TrpTyr: 0.279 ± 0.018
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.422TyrAla: 2.422 ± 0.052
0.125TyrCys: 0.125 ± 0.011
1.213TyrAsp: 1.213 ± 0.037
0.917TyrGlu: 0.917 ± 0.031
0.586TyrPhe: 0.586 ± 0.023
1.723TyrGly: 1.723 ± 0.042
0.298TyrHis: 0.298 ± 0.017
0.485TyrIle: 0.485 ± 0.022
0.313TyrLys: 0.313 ± 0.019
2.136TyrLeu: 2.136 ± 0.045
0.219TyrMet: 0.219 ± 0.014
0.36TyrAsn: 0.36 ± 0.02
1.002TyrPro: 1.002 ± 0.031
0.585TyrGln: 0.585 ± 0.022
1.577TyrArg: 1.577 ± 0.042
0.931TyrSer: 0.931 ± 0.033
1.068TyrThr: 1.068 ± 0.038
1.766TyrVal: 1.766 ± 0.043
0.303TyrTrp: 0.303 ± 0.017
0.41TyrTyr: 0.41 ± 0.019
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 3376 proteins (1112575 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