Amino acid dipepetide frequency for Janibacter sp. HTCC2649

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
18.842AlaAla: 18.842 ± 0.178
0.844AlaCys: 0.844 ± 0.028
7.823AlaAsp: 7.823 ± 0.089
7.033AlaGlu: 7.033 ± 0.11
3.641AlaPhe: 3.641 ± 0.06
11.904AlaGly: 11.904 ± 0.111
2.672AlaHis: 2.672 ± 0.055
5.068AlaIle: 5.068 ± 0.072
3.329AlaLys: 3.329 ± 0.073
13.35AlaLeu: 13.35 ± 0.143
2.859AlaMet: 2.859 ± 0.048
2.366AlaAsn: 2.366 ± 0.045
6.234AlaPro: 6.234 ± 0.101
3.836AlaGln: 3.836 ± 0.06
8.533AlaArg: 8.533 ± 0.11
7.115AlaSer: 7.115 ± 0.071
8.265AlaThr: 8.265 ± 0.092
11.185AlaVal: 11.185 ± 0.111
1.91AlaTrp: 1.91 ± 0.036
2.725AlaTyr: 2.725 ± 0.044
0.0AlaXaa: 0.0 ± 0.0
Cys
0.807CysAla: 0.807 ± 0.024
0.073CysCys: 0.073 ± 0.009
0.476CysAsp: 0.476 ± 0.021
0.327CysGlu: 0.327 ± 0.015
0.208CysPhe: 0.208 ± 0.013
0.759CysGly: 0.759 ± 0.024
0.177CysHis: 0.177 ± 0.013
0.21CysIle: 0.21 ± 0.012
0.108CysLys: 0.108 ± 0.009
0.563CysLeu: 0.563 ± 0.021
0.104CysMet: 0.104 ± 0.009
0.119CysAsn: 0.119 ± 0.011
0.384CysPro: 0.384 ± 0.021
0.151CysGln: 0.151 ± 0.011
0.47CysArg: 0.47 ± 0.019
0.403CysSer: 0.403 ± 0.017
0.427CysThr: 0.427 ± 0.019
0.603CysVal: 0.603 ± 0.019
0.094CysTrp: 0.094 ± 0.008
0.111CysTyr: 0.111 ± 0.008
0.0CysXaa: 0.0 ± 0.0
Asp
7.876AspAla: 7.876 ± 0.086
0.321AspCys: 0.321 ± 0.016
4.292AspAsp: 4.292 ± 0.071
4.331AspGlu: 4.331 ± 0.057
1.69AspPhe: 1.69 ± 0.037
6.229AspGly: 6.229 ± 0.078
1.531AspHis: 1.531 ± 0.035
2.309AspIle: 2.309 ± 0.04
1.349AspLys: 1.349 ± 0.04
6.998AspLeu: 6.998 ± 0.08
0.838AspMet: 0.838 ± 0.025
1.192AspAsn: 1.192 ± 0.032
4.143AspPro: 4.143 ± 0.061
1.713AspGln: 1.713 ± 0.04
4.297AspArg: 4.297 ± 0.066
2.889AspSer: 2.889 ± 0.051
3.217AspThr: 3.217 ± 0.067
6.021AspVal: 6.021 ± 0.073
0.927AspTrp: 0.927 ± 0.032
1.166AspTyr: 1.166 ± 0.029
0.0AspXaa: 0.0 ± 0.0
Glu
6.849GluAla: 6.849 ± 0.094
0.338GluCys: 0.338 ± 0.016
2.986GluAsp: 2.986 ± 0.056
2.736GluGlu: 2.736 ± 0.062
1.592GluPhe: 1.592 ± 0.033
4.366GluGly: 4.366 ± 0.063
1.521GluHis: 1.521 ± 0.038
2.441GluIle: 2.441 ± 0.043
1.358GluLys: 1.358 ± 0.04
5.895GluLeu: 5.895 ± 0.088
0.937GluMet: 0.937 ± 0.027
1.045GluAsn: 1.045 ± 0.031
2.849GluPro: 2.849 ± 0.056
2.023GluGln: 2.023 ± 0.036
4.749GluArg: 4.749 ± 0.077
3.083GluSer: 3.083 ± 0.054
2.868GluThr: 2.868 ± 0.045
5.071GluVal: 5.071 ± 0.064
0.825GluTrp: 0.825 ± 0.03
0.852GluTyr: 0.852 ± 0.025
0.0GluXaa: 0.0 ± 0.0
Phe
3.674PheAla: 3.674 ± 0.051
0.223PheCys: 0.223 ± 0.014
2.084PheAsp: 2.084 ± 0.038
1.507PheGlu: 1.507 ± 0.034
0.925PhePhe: 0.925 ± 0.03
3.174PheGly: 3.174 ± 0.054
0.624PheHis: 0.624 ± 0.021
1.077PheIle: 1.077 ± 0.034
0.541PheLys: 0.541 ± 0.02
2.52PheLeu: 2.52 ± 0.06
0.469PheMet: 0.469 ± 0.021
0.649PheAsn: 0.649 ± 0.026
1.299PhePro: 1.299 ± 0.034
0.6PheGln: 0.6 ± 0.022
1.577PheArg: 1.577 ± 0.037
1.557PheSer: 1.557 ± 0.036
2.043PheThr: 2.043 ± 0.045
2.738PheVal: 2.738 ± 0.053
0.45PheTrp: 0.45 ± 0.021
0.603PheTyr: 0.603 ± 0.021
0.0PheXaa: 0.0 ± 0.0
Gly
10.636GlyAla: 10.636 ± 0.114
0.687GlyCys: 0.687 ± 0.025
5.463GlyAsp: 5.463 ± 0.074
5.031GlyGlu: 5.031 ± 0.066
2.992GlyPhe: 2.992 ± 0.052
8.329GlyGly: 8.329 ± 0.129
2.192GlyHis: 2.192 ± 0.045
4.094GlyIle: 4.094 ± 0.06
2.526GlyLys: 2.526 ± 0.053
9.506GlyLeu: 9.506 ± 0.091
1.926GlyMet: 1.926 ± 0.042
1.927GlyAsn: 1.927 ± 0.041
4.352GlyPro: 4.352 ± 0.065
2.903GlyGln: 2.903 ± 0.045
6.608GlyArg: 6.608 ± 0.08
5.87GlySer: 5.87 ± 0.072
5.957GlyThr: 5.957 ± 0.107
8.057GlyVal: 8.057 ± 0.085
1.818GlyTrp: 1.818 ± 0.039
2.036GlyTyr: 2.036 ± 0.044
0.0GlyXaa: 0.0 ± 0.0
His
2.447HisAla: 2.447 ± 0.05
0.179HisCys: 0.179 ± 0.011
1.62HisAsp: 1.62 ± 0.04
1.339HisGlu: 1.339 ± 0.034
0.552HisPhe: 0.552 ± 0.019
2.216HisGly: 2.216 ± 0.043
0.675HisHis: 0.675 ± 0.027
0.683HisIle: 0.683 ± 0.023
0.355HisLys: 0.355 ± 0.016
2.501HisLeu: 2.501 ± 0.05
0.314HisMet: 0.314 ± 0.014
0.393HisAsn: 0.393 ± 0.014
1.552HisPro: 1.552 ± 0.035
0.621HisGln: 0.621 ± 0.024
1.747HisArg: 1.747 ± 0.038
1.012HisSer: 1.012 ± 0.026
1.201HisThr: 1.201 ± 0.034
2.04HisVal: 2.04 ± 0.044
0.367HisTrp: 0.367 ± 0.018
0.398HisTyr: 0.398 ± 0.019
0.0HisXaa: 0.0 ± 0.0
Ile
5.838IleAla: 5.838 ± 0.069
0.294IleCys: 0.294 ± 0.016
3.018IleAsp: 3.018 ± 0.055
2.555IleGlu: 2.555 ± 0.043
1.021IlePhe: 1.021 ± 0.03
4.161IleGly: 4.161 ± 0.059
0.801IleHis: 0.801 ± 0.024
1.416IleIle: 1.416 ± 0.037
0.924IleLys: 0.924 ± 0.031
3.12IleLeu: 3.12 ± 0.056
0.544IleMet: 0.544 ± 0.023
0.928IleAsn: 0.928 ± 0.026
2.131IlePro: 2.131 ± 0.044
0.903IleGln: 0.903 ± 0.029
2.318IleArg: 2.318 ± 0.042
2.144IleSer: 2.144 ± 0.04
2.825IleThr: 2.825 ± 0.056
3.874IleVal: 3.874 ± 0.052
0.468IleTrp: 0.468 ± 0.02
0.669IleTyr: 0.669 ± 0.022
0.0IleXaa: 0.0 ± 0.0
Lys
3.241LysAla: 3.241 ± 0.068
0.114LysCys: 0.114 ± 0.011
1.492LysAsp: 1.492 ± 0.039
1.079LysGlu: 1.079 ± 0.035
0.562LysPhe: 0.562 ± 0.022
2.06LysGly: 2.06 ± 0.037
0.493LysHis: 0.493 ± 0.02
0.903LysIle: 0.903 ± 0.029
0.877LysLys: 0.877 ± 0.038
1.83LysLeu: 1.83 ± 0.039
0.427LysMet: 0.427 ± 0.019
0.62LysAsn: 0.62 ± 0.025
1.359LysPro: 1.359 ± 0.035
0.688LysGln: 0.688 ± 0.024
1.476LysArg: 1.476 ± 0.037
1.335LysSer: 1.335 ± 0.035
1.417LysThr: 1.417 ± 0.039
2.379LysVal: 2.379 ± 0.046
0.311LysTrp: 0.311 ± 0.018
0.455LysTyr: 0.455 ± 0.018
0.0LysXaa: 0.0 ± 0.0
Leu
14.12LeuAla: 14.12 ± 0.131
0.597LeuCys: 0.597 ± 0.021
6.795LeuAsp: 6.795 ± 0.081
5.017LeuGlu: 5.017 ± 0.077
2.391LeuPhe: 2.391 ± 0.048
9.642LeuGly: 9.642 ± 0.109
1.945LeuHis: 1.945 ± 0.044
3.708LeuIle: 3.708 ± 0.057
1.988LeuLys: 1.988 ± 0.044
9.809LeuLeu: 9.809 ± 0.128
1.731LeuMet: 1.731 ± 0.041
1.72LeuAsn: 1.72 ± 0.04
5.412LeuPro: 5.412 ± 0.064
2.289LeuGln: 2.289 ± 0.04
7.257LeuArg: 7.257 ± 0.088
5.584LeuSer: 5.584 ± 0.061
7.022LeuThr: 7.022 ± 0.086
9.608LeuVal: 9.608 ± 0.11
1.216LeuTrp: 1.216 ± 0.036
1.339LeuTyr: 1.339 ± 0.034
0.0LeuXaa: 0.0 ± 0.0
Met
2.41MetAla: 2.41 ± 0.039
0.127MetCys: 0.127 ± 0.009
0.895MetAsp: 0.895 ± 0.028
0.752MetGlu: 0.752 ± 0.026
0.526MetPhe: 0.526 ± 0.02
1.596MetGly: 1.596 ± 0.039
0.338MetHis: 0.338 ± 0.017
0.728MetIle: 0.728 ± 0.024
0.488MetLys: 0.488 ± 0.017
1.777MetLeu: 1.777 ± 0.043
0.321MetMet: 0.321 ± 0.016
0.468MetAsn: 0.468 ± 0.019
1.219MetPro: 1.219 ± 0.032
0.488MetGln: 0.488 ± 0.018
1.375MetArg: 1.375 ± 0.034
1.621MetSer: 1.621 ± 0.039
1.78MetThr: 1.78 ± 0.038
1.485MetVal: 1.485 ± 0.036
0.247MetTrp: 0.247 ± 0.014
0.276MetTyr: 0.276 ± 0.015
0.0MetXaa: 0.0 ± 0.0
Asn
2.557AsnAla: 2.557 ± 0.046
0.175AsnCys: 0.175 ± 0.011
1.143AsnAsp: 1.143 ± 0.036
0.898AsnGlu: 0.898 ± 0.029
0.57AsnPhe: 0.57 ± 0.023
1.93AsnGly: 1.93 ± 0.053
0.447AsnHis: 0.447 ± 0.021
0.767AsnIle: 0.767 ± 0.025
0.435AsnLys: 0.435 ± 0.02
1.961AsnLeu: 1.961 ± 0.042
0.306AsnMet: 0.306 ± 0.014
0.499AsnAsn: 0.499 ± 0.024
1.583AsnPro: 1.583 ± 0.04
0.563AsnGln: 0.563 ± 0.021
1.253AsnArg: 1.253 ± 0.024
1.053AsnSer: 1.053 ± 0.03
1.23AsnThr: 1.23 ± 0.035
1.649AsnVal: 1.649 ± 0.04
0.299AsnTrp: 0.299 ± 0.016
0.475AsnTyr: 0.475 ± 0.019
0.0AsnXaa: 0.0 ± 0.0
Pro
6.743ProAla: 6.743 ± 0.105
0.267ProCys: 0.267 ± 0.013
4.032ProAsp: 4.032 ± 0.059
3.665ProGlu: 3.665 ± 0.056
1.573ProPhe: 1.573 ± 0.037
5.29ProGly: 5.29 ± 0.059
1.189ProHis: 1.189 ± 0.03
1.907ProIle: 1.907 ± 0.038
1.304ProLys: 1.304 ± 0.034
4.702ProLeu: 4.702 ± 0.062
1.173ProMet: 1.173 ± 0.031
1.021ProAsn: 1.021 ± 0.028
2.563ProPro: 2.563 ± 0.063
1.564ProGln: 1.564 ± 0.038
3.323ProArg: 3.323 ± 0.054
3.481ProSer: 3.481 ± 0.061
4.009ProThr: 4.009 ± 0.06
4.936ProVal: 4.936 ± 0.081
0.95ProTrp: 0.95 ± 0.031
0.903ProTyr: 0.903 ± 0.03
0.0ProXaa: 0.0 ± 0.0
Gln
3.499GlnAla: 3.499 ± 0.052
0.189GlnCys: 0.189 ± 0.012
1.343GlnAsp: 1.343 ± 0.034
1.258GlnGlu: 1.258 ± 0.033
0.837GlnPhe: 0.837 ± 0.029
2.362GlnGly: 2.362 ± 0.043
0.658GlnHis: 0.658 ± 0.023
1.278GlnIle: 1.278 ± 0.032
0.651GlnLys: 0.651 ± 0.02
2.917GlnLeu: 2.917 ± 0.042
0.585GlnMet: 0.585 ± 0.022
0.551GlnAsn: 0.551 ± 0.017
1.637GlnPro: 1.637 ± 0.04
1.102GlnGln: 1.102 ± 0.035
2.371GlnArg: 2.371 ± 0.049
1.566GlnSer: 1.566 ± 0.035
1.593GlnThr: 1.593 ± 0.034
2.621GlnVal: 2.621 ± 0.039
0.54GlnTrp: 0.54 ± 0.02
0.438GlnTyr: 0.438 ± 0.02
0.0GlnXaa: 0.0 ± 0.0
Arg
8.257ArgAla: 8.257 ± 0.102
0.4ArgCys: 0.4 ± 0.018
4.377ArgAsp: 4.377 ± 0.068
4.206ArgGlu: 4.206 ± 0.063
2.03ArgPhe: 2.03 ± 0.04
5.525ArgGly: 5.525 ± 0.07
1.765ArgHis: 1.765 ± 0.04
3.121ArgIle: 3.121 ± 0.044
1.486ArgLys: 1.486 ± 0.041
7.259ArgLeu: 7.259 ± 0.093
1.57ArgMet: 1.57 ± 0.034
1.26ArgAsn: 1.26 ± 0.035
3.817ArgPro: 3.817 ± 0.057
2.046ArgGln: 2.046 ± 0.038
6.233ArgArg: 6.233 ± 0.093
4.179ArgSer: 4.179 ± 0.061
4.38ArgThr: 4.38 ± 0.064
5.834ArgVal: 5.834 ± 0.073
1.277ArgTrp: 1.277 ± 0.033
1.33ArgTyr: 1.33 ± 0.031
0.0ArgXaa: 0.0 ± 0.0
Ser
7.303SerAla: 7.303 ± 0.08
0.383SerCys: 0.383 ± 0.02
3.424SerAsp: 3.424 ± 0.053
2.753SerGlu: 2.753 ± 0.051
1.648SerPhe: 1.648 ± 0.039
6.177SerGly: 6.177 ± 0.082
1.212SerHis: 1.212 ± 0.031
2.288SerIle: 2.288 ± 0.041
1.243SerLys: 1.243 ± 0.037
5.384SerLeu: 5.384 ± 0.064
1.422SerMet: 1.422 ± 0.03
1.16SerAsn: 1.16 ± 0.029
3.302SerPro: 3.302 ± 0.054
1.594SerGln: 1.594 ± 0.034
3.914SerArg: 3.914 ± 0.059
3.633SerSer: 3.633 ± 0.055
3.995SerThr: 3.995 ± 0.063
4.929SerVal: 4.929 ± 0.057
1.022SerTrp: 1.022 ± 0.031
1.036SerTyr: 1.036 ± 0.028
0.0SerXaa: 0.0 ± 0.0
Thr
8.016ThrAla: 8.016 ± 0.106
0.445ThrCys: 0.445 ± 0.02
3.864ThrAsp: 3.864 ± 0.059
3.112ThrGlu: 3.112 ± 0.053
2.077ThrPhe: 2.077 ± 0.044
6.237ThrGly: 6.237 ± 0.095
1.394ThrHis: 1.394 ± 0.03
2.765ThrIle: 2.765 ± 0.052
1.544ThrLys: 1.544 ± 0.041
5.982ThrLeu: 5.982 ± 0.067
1.259ThrMet: 1.259 ± 0.03
1.325ThrAsn: 1.325 ± 0.04
4.23ThrPro: 4.23 ± 0.069
1.75ThrGln: 1.75 ± 0.037
3.924ThrArg: 3.924 ± 0.058
4.196ThrSer: 4.196 ± 0.062
4.94ThrThr: 4.94 ± 0.087
5.995ThrVal: 5.995 ± 0.09
1.104ThrTrp: 1.104 ± 0.031
1.401ThrTyr: 1.401 ± 0.04
0.0ThrXaa: 0.0 ± 0.0
Val
11.968ValAla: 11.968 ± 0.116
0.647ValCys: 0.647 ± 0.021
6.042ValAsp: 6.042 ± 0.082
5.136ValGlu: 5.136 ± 0.075
2.292ValPhe: 2.292 ± 0.042
8.018ValGly: 8.018 ± 0.085
1.934ValHis: 1.934 ± 0.04
4.024ValIle: 4.024 ± 0.06
1.921ValLys: 1.921 ± 0.042
9.404ValLeu: 9.404 ± 0.106
1.59ValMet: 1.59 ± 0.037
1.767ValAsn: 1.767 ± 0.037
4.825ValPro: 4.825 ± 0.066
2.144ValGln: 2.144 ± 0.036
6.311ValArg: 6.311 ± 0.085
5.094ValSer: 5.094 ± 0.069
6.396ValThr: 6.396 ± 0.084
9.594ValVal: 9.594 ± 0.102
1.237ValTrp: 1.237 ± 0.033
1.216ValTyr: 1.216 ± 0.031
0.0ValXaa: 0.0 ± 0.0
Trp
1.675TrpAla: 1.675 ± 0.041
0.136TrpCys: 0.136 ± 0.011
0.886TrpAsp: 0.886 ± 0.028
0.687TrpGlu: 0.687 ± 0.023
0.59TrpPhe: 0.59 ± 0.023
1.211TrpGly: 1.211 ± 0.029
0.355TrpHis: 0.355 ± 0.017
0.625TrpIle: 0.625 ± 0.022
0.342TrpLys: 0.342 ± 0.018
1.828TrpLeu: 1.828 ± 0.046
0.325TrpMet: 0.325 ± 0.017
0.405TrpAsn: 0.405 ± 0.02
0.771TrpPro: 0.771 ± 0.025
0.536TrpGln: 0.536 ± 0.022
1.236TrpArg: 1.236 ± 0.034
1.06TrpSer: 1.06 ± 0.031
1.023TrpThr: 1.023 ± 0.032
1.351TrpVal: 1.351 ± 0.037
0.404TrpTrp: 0.404 ± 0.018
0.282TrpTyr: 0.282 ± 0.016
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.777TyrAla: 2.777 ± 0.047
0.139TyrCys: 0.139 ± 0.011
1.275TyrAsp: 1.275 ± 0.038
0.961TyrGlu: 0.961 ± 0.03
0.616TyrPhe: 0.616 ± 0.022
1.726TyrGly: 1.726 ± 0.042
0.29TyrHis: 0.29 ± 0.017
0.538TyrIle: 0.538 ± 0.023
0.349TyrLys: 0.349 ± 0.017
1.886TyrLeu: 1.886 ± 0.04
0.219TyrMet: 0.219 ± 0.015
0.376TyrAsn: 0.376 ± 0.018
0.932TyrPro: 0.932 ± 0.031
0.48TyrGln: 0.48 ± 0.022
1.383TyrArg: 1.383 ± 0.034
0.945TyrSer: 0.945 ± 0.028
0.973TyrThr: 0.973 ± 0.031
1.587TyrVal: 1.587 ± 0.04
0.26TyrTrp: 0.26 ± 0.015
0.423TyrTyr: 0.423 ± 0.022
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 4081 proteins (1293981 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