Amino acid dipepetide frequency for Halothiobacillus sp. XI15

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
13.969AlaAla: 13.969 ± 0.216
0.867AlaCys: 0.867 ± 0.037
7.414AlaAsp: 7.414 ± 0.12
8.605AlaGlu: 8.605 ± 0.14
3.944AlaPhe: 3.944 ± 0.078
10.183AlaGly: 10.183 ± 0.142
2.324AlaHis: 2.324 ± 0.068
5.857AlaIle: 5.857 ± 0.096
2.677AlaLys: 2.677 ± 0.072
12.426AlaLeu: 12.426 ± 0.19
3.183AlaMet: 3.183 ± 0.067
2.595AlaAsn: 2.595 ± 0.073
4.755AlaPro: 4.755 ± 0.095
3.675AlaGln: 3.675 ± 0.075
8.927AlaArg: 8.927 ± 0.128
5.622AlaSer: 5.622 ± 0.106
5.343AlaThr: 5.343 ± 0.084
8.156AlaVal: 8.156 ± 0.132
1.618AlaTrp: 1.618 ± 0.052
2.216AlaTyr: 2.216 ± 0.065
0.0AlaXaa: 0.0 ± 0.0
Cys
0.711CysAla: 0.711 ± 0.035
0.071CysCys: 0.071 ± 0.012
0.492CysAsp: 0.492 ± 0.029
0.473CysGlu: 0.473 ± 0.029
0.223CysPhe: 0.223 ± 0.019
0.736CysGly: 0.736 ± 0.036
0.248CysHis: 0.248 ± 0.02
0.278CysIle: 0.278 ± 0.02
0.118CysLys: 0.118 ± 0.014
0.748CysLeu: 0.748 ± 0.032
0.109CysMet: 0.109 ± 0.013
0.183CysAsn: 0.183 ± 0.016
0.51CysPro: 0.51 ± 0.027
0.235CysGln: 0.235 ± 0.019
0.621CysArg: 0.621 ± 0.03
0.381CysSer: 0.381 ± 0.024
0.291CysThr: 0.291 ± 0.021
0.437CysVal: 0.437 ± 0.027
0.074CysTrp: 0.074 ± 0.011
0.173CysTyr: 0.173 ± 0.016
0.0CysXaa: 0.0 ± 0.0
Asp
6.781AspAla: 6.781 ± 0.101
0.502AspCys: 0.502 ± 0.025
4.093AspAsp: 4.093 ± 0.086
5.273AspGlu: 5.273 ± 0.111
2.243AspPhe: 2.243 ± 0.063
5.426AspGly: 5.426 ± 0.108
1.414AspHis: 1.414 ± 0.044
2.831AspIle: 2.831 ± 0.075
1.616AspLys: 1.616 ± 0.057
6.351AspLeu: 6.351 ± 0.102
1.58AspMet: 1.58 ± 0.048
1.547AspAsn: 1.547 ± 0.055
3.728AspPro: 3.728 ± 0.089
2.426AspGln: 2.426 ± 0.059
5.454AspArg: 5.454 ± 0.105
2.731AspSer: 2.731 ± 0.065
2.909AspThr: 2.909 ± 0.069
4.153AspVal: 4.153 ± 0.077
1.387AspTrp: 1.387 ± 0.049
1.721AspTyr: 1.721 ± 0.051
0.0AspXaa: 0.0 ± 0.0
Glu
8.759GluAla: 8.759 ± 0.148
0.406GluCys: 0.406 ± 0.023
3.252GluAsp: 3.252 ± 0.075
4.17GluGlu: 4.17 ± 0.094
1.8GluPhe: 1.8 ± 0.052
4.855GluGly: 4.855 ± 0.084
1.776GluHis: 1.776 ± 0.053
3.546GluIle: 3.546 ± 0.08
2.213GluLys: 2.213 ± 0.07
6.702GluLeu: 6.702 ± 0.122
1.633GluMet: 1.633 ± 0.055
1.776GluAsn: 1.776 ± 0.047
3.67GluPro: 3.67 ± 0.093
3.28GluGln: 3.28 ± 0.076
6.97GluArg: 6.97 ± 0.124
3.89GluSer: 3.89 ± 0.08
3.96GluThr: 3.96 ± 0.104
4.722GluVal: 4.722 ± 0.095
0.919GluTrp: 0.919 ± 0.04
1.324GluTyr: 1.324 ± 0.044
0.0GluXaa: 0.0 ± 0.0
Phe
3.781PheAla: 3.781 ± 0.08
0.309PheCys: 0.309 ± 0.023
2.858PheAsp: 2.858 ± 0.067
2.423PheGlu: 2.423 ± 0.066
1.312PhePhe: 1.312 ± 0.047
3.397PheGly: 3.397 ± 0.073
0.737PheHis: 0.737 ± 0.036
1.497PheIle: 1.497 ± 0.048
0.83PheLys: 0.83 ± 0.039
3.347PheLeu: 3.347 ± 0.07
0.705PheMet: 0.705 ± 0.033
1.005PheAsn: 1.005 ± 0.041
1.461PhePro: 1.461 ± 0.046
0.915PheGln: 0.915 ± 0.038
2.247PheArg: 2.247 ± 0.056
1.848PheSer: 1.848 ± 0.049
1.699PheThr: 1.699 ± 0.056
2.68PheVal: 2.68 ± 0.075
0.551PheTrp: 0.551 ± 0.034
0.888PheTyr: 0.888 ± 0.039
0.0PheXaa: 0.0 ± 0.0
Gly
7.583GlyAla: 7.583 ± 0.123
0.79GlyCys: 0.79 ± 0.037
4.941GlyAsp: 4.941 ± 0.098
6.256GlyGlu: 6.256 ± 0.103
3.452GlyPhe: 3.452 ± 0.069
6.816GlyGly: 6.816 ± 0.122
2.14GlyHis: 2.14 ± 0.058
4.26GlyIle: 4.26 ± 0.084
2.791GlyLys: 2.791 ± 0.08
8.925GlyLeu: 8.925 ± 0.121
2.54GlyMet: 2.54 ± 0.071
2.147GlyAsn: 2.147 ± 0.066
2.952GlyPro: 2.952 ± 0.078
3.273GlyGln: 3.273 ± 0.082
6.441GlyArg: 6.441 ± 0.111
4.26GlySer: 4.26 ± 0.082
3.89GlyThr: 3.89 ± 0.083
6.175GlyVal: 6.175 ± 0.102
1.42GlyTrp: 1.42 ± 0.049
2.275GlyTyr: 2.275 ± 0.058
0.0GlyXaa: 0.0 ± 0.0
His
2.47HisAla: 2.47 ± 0.06
0.226HisCys: 0.226 ± 0.018
1.51HisAsp: 1.51 ± 0.055
1.367HisGlu: 1.367 ± 0.044
0.921HisPhe: 0.921 ± 0.041
2.169HisGly: 2.169 ± 0.065
0.749HisHis: 0.749 ± 0.036
0.873HisIle: 0.873 ± 0.034
0.467HisLys: 0.467 ± 0.026
2.463HisLeu: 2.463 ± 0.06
0.467HisMet: 0.467 ± 0.025
0.573HisAsn: 0.573 ± 0.035
1.621HisPro: 1.621 ± 0.048
0.835HisGln: 0.835 ± 0.037
1.857HisArg: 1.857 ± 0.056
0.959HisSer: 0.959 ± 0.04
0.949HisThr: 0.949 ± 0.038
1.584HisVal: 1.584 ± 0.045
0.443HisTrp: 0.443 ± 0.022
0.615HisTyr: 0.615 ± 0.034
0.0HisXaa: 0.0 ± 0.0
Ile
5.822IleAla: 5.822 ± 0.113
0.334IleCys: 0.334 ± 0.021
4.447IleAsp: 4.447 ± 0.072
4.675IleGlu: 4.675 ± 0.094
1.321IlePhe: 1.321 ± 0.043
4.644IleGly: 4.644 ± 0.081
1.148IleHis: 1.148 ± 0.046
1.814IleIle: 1.814 ± 0.057
1.399IleLys: 1.399 ± 0.046
3.899IleLeu: 3.899 ± 0.078
0.842IleMet: 0.842 ± 0.04
1.587IleAsn: 1.587 ± 0.051
2.203IlePro: 2.203 ± 0.059
1.297IleGln: 1.297 ± 0.044
3.471IleArg: 3.471 ± 0.064
2.327IleSer: 2.327 ± 0.06
2.728IleThr: 2.728 ± 0.072
3.542IleVal: 3.542 ± 0.073
0.522IleTrp: 0.522 ± 0.028
0.921IleTyr: 0.921 ± 0.038
0.0IleXaa: 0.0 ± 0.0
Lys
3.119LysAla: 3.119 ± 0.081
0.127LysCys: 0.127 ± 0.013
1.339LysAsp: 1.339 ± 0.049
1.373LysGlu: 1.373 ± 0.057
0.655LysPhe: 0.655 ± 0.035
2.14LysGly: 2.14 ± 0.063
0.604LysHis: 0.604 ± 0.024
1.266LysIle: 1.266 ± 0.049
1.176LysLys: 1.176 ± 0.048
2.496LysLeu: 2.496 ± 0.068
0.6LysMet: 0.6 ± 0.028
0.734LysAsn: 0.734 ± 0.038
1.569LysPro: 1.569 ± 0.054
1.113LysGln: 1.113 ± 0.043
2.295LysArg: 2.295 ± 0.061
1.411LysSer: 1.411 ± 0.044
1.467LysThr: 1.467 ± 0.049
1.816LysVal: 1.816 ± 0.056
0.27LysTrp: 0.27 ± 0.019
0.561LysTyr: 0.561 ± 0.031
0.0LysXaa: 0.0 ± 0.0
Leu
13.991LeuAla: 13.991 ± 0.193
0.668LeuCys: 0.668 ± 0.036
7.293LeuAsp: 7.293 ± 0.121
6.925LeuGlu: 6.925 ± 0.117
3.592LeuPhe: 3.592 ± 0.074
8.487LeuGly: 8.487 ± 0.135
1.987LeuHis: 1.987 ± 0.055
5.403LeuIle: 5.403 ± 0.113
3.064LeuLys: 3.064 ± 0.062
10.612LeuLeu: 10.612 ± 0.213
2.442LeuMet: 2.442 ± 0.064
2.453LeuAsn: 2.453 ± 0.069
5.82LeuPro: 5.82 ± 0.105
2.68LeuGln: 2.68 ± 0.073
6.869LeuArg: 6.869 ± 0.114
5.995LeuSer: 5.995 ± 0.094
5.547LeuThr: 5.547 ± 0.096
8.103LeuVal: 8.103 ± 0.131
1.275LeuTrp: 1.275 ± 0.049
2.043LeuTyr: 2.043 ± 0.064
0.0LeuXaa: 0.0 ± 0.0
Met
2.986MetAla: 2.986 ± 0.079
0.102MetCys: 0.102 ± 0.013
1.243MetAsp: 1.243 ± 0.047
1.15MetGlu: 1.15 ± 0.049
0.668MetPhe: 0.668 ± 0.029
1.837MetGly: 1.837 ± 0.057
0.507MetHis: 0.507 ± 0.026
1.262MetIle: 1.262 ± 0.044
0.785MetLys: 0.785 ± 0.032
2.466MetLeu: 2.466 ± 0.065
0.576MetMet: 0.576 ± 0.032
0.785MetAsn: 0.785 ± 0.032
1.396MetPro: 1.396 ± 0.048
0.997MetGln: 0.997 ± 0.036
1.798MetArg: 1.798 ± 0.051
1.541MetSer: 1.541 ± 0.051
1.677MetThr: 1.677 ± 0.051
1.689MetVal: 1.689 ± 0.049
0.191MetTrp: 0.191 ± 0.017
0.381MetTyr: 0.381 ± 0.021
0.0MetXaa: 0.0 ± 0.0
Asn
2.878AsnAla: 2.878 ± 0.073
0.195AsnCys: 0.195 ± 0.016
1.605AsnAsp: 1.605 ± 0.055
1.523AsnGlu: 1.523 ± 0.05
0.727AsnPhe: 0.727 ± 0.033
2.073AsnGly: 2.073 ± 0.057
0.581AsnHis: 0.581 ± 0.03
1.213AsnIle: 1.213 ± 0.042
0.655AsnLys: 0.655 ± 0.033
2.671AsnLeu: 2.671 ± 0.068
0.507AsnMet: 0.507 ± 0.027
0.668AsnAsn: 0.668 ± 0.034
1.788AsnPro: 1.788 ± 0.054
0.906AsnGln: 0.906 ± 0.038
2.11AsnArg: 2.11 ± 0.059
0.987AsnSer: 0.987 ± 0.039
1.178AsnThr: 1.178 ± 0.041
1.812AsnVal: 1.812 ± 0.062
0.374AsnTrp: 0.374 ± 0.026
0.603AsnTyr: 0.603 ± 0.029
0.0AsnXaa: 0.0 ± 0.0
Pro
6.085ProAla: 6.085 ± 0.108
0.266ProCys: 0.266 ± 0.019
3.885ProAsp: 3.885 ± 0.08
4.402ProGlu: 4.402 ± 0.091
1.783ProPhe: 1.783 ± 0.058
4.464ProGly: 4.464 ± 0.085
0.978ProHis: 0.978 ± 0.039
2.268ProIle: 2.268 ± 0.056
1.148ProLys: 1.148 ± 0.044
4.786ProLeu: 4.786 ± 0.081
1.197ProMet: 1.197 ± 0.043
1.158ProAsn: 1.158 ± 0.037
2.311ProPro: 2.311 ± 0.06
1.464ProGln: 1.464 ± 0.053
3.06ProArg: 3.06 ± 0.083
2.494ProSer: 2.494 ± 0.064
2.537ProThr: 2.537 ± 0.06
4.412ProVal: 4.412 ± 0.091
0.755ProTrp: 0.755 ± 0.035
1.034ProTyr: 1.034 ± 0.04
0.0ProXaa: 0.0 ± 0.0
Gln
4.802GlnAla: 4.802 ± 0.095
0.195GlnCys: 0.195 ± 0.017
1.509GlnAsp: 1.509 ± 0.052
1.649GlnGlu: 1.649 ± 0.058
1.086GlnPhe: 1.086 ± 0.037
2.779GlnGly: 2.779 ± 0.073
0.783GlnHis: 0.783 ± 0.032
1.794GlnIle: 1.794 ± 0.057
0.892GlnLys: 0.892 ± 0.039
3.716GlnLeu: 3.716 ± 0.085
0.931GlnMet: 0.931 ± 0.038
0.702GlnAsn: 0.702 ± 0.033
2.005GlnPro: 2.005 ± 0.052
1.597GlnGln: 1.597 ± 0.053
3.008GlnArg: 3.008 ± 0.067
1.903GlnSer: 1.903 ± 0.05
1.866GlnThr: 1.866 ± 0.057
2.745GlnVal: 2.745 ± 0.063
0.533GlnTrp: 0.533 ± 0.033
0.693GlnTyr: 0.693 ± 0.035
0.0GlnXaa: 0.0 ± 0.0
Arg
7.791ArgAla: 7.791 ± 0.114
0.498ArgCys: 0.498 ± 0.029
4.894ArgAsp: 4.894 ± 0.09
5.983ArgGlu: 5.983 ± 0.101
3.298ArgPhe: 3.298 ± 0.063
5.052ArgGly: 5.052 ± 0.088
2.335ArgHis: 2.335 ± 0.065
3.935ArgIle: 3.935 ± 0.087
1.627ArgLys: 1.627 ± 0.053
9.948ArgLeu: 9.948 ± 0.165
1.854ArgMet: 1.854 ± 0.057
1.812ArgAsn: 1.812 ± 0.059
3.833ArgPro: 3.833 ± 0.093
3.397ArgGln: 3.397 ± 0.081
6.775ArgArg: 6.775 ± 0.121
3.304ArgSer: 3.304 ± 0.07
2.825ArgThr: 2.825 ± 0.062
5.668ArgVal: 5.668 ± 0.105
1.216ArgTrp: 1.216 ± 0.041
2.049ArgTyr: 2.049 ± 0.057
0.0ArgXaa: 0.0 ± 0.0
Ser
5.384SerAla: 5.384 ± 0.094
0.313SerCys: 0.313 ± 0.026
3.084SerAsp: 3.084 ± 0.064
3.036SerGlu: 3.036 ± 0.072
1.773SerPhe: 1.773 ± 0.05
4.901SerGly: 4.901 ± 0.093
1.169SerHis: 1.169 ± 0.045
2.59SerIle: 2.59 ± 0.068
1.148SerLys: 1.148 ± 0.043
5.575SerLeu: 5.575 ± 0.092
1.365SerMet: 1.365 ± 0.043
1.287SerAsn: 1.287 ± 0.049
2.481SerPro: 2.481 ± 0.057
1.717SerGln: 1.717 ± 0.051
3.947SerArg: 3.947 ± 0.085
2.524SerSer: 2.524 ± 0.074
2.456SerThr: 2.456 ± 0.068
3.831SerVal: 3.831 ± 0.079
0.635SerTrp: 0.635 ± 0.032
1.114SerTyr: 1.114 ± 0.045
0.0SerXaa: 0.0 ± 0.0
Thr
5.593ThrAla: 5.593 ± 0.097
0.337ThrCys: 0.337 ± 0.023
3.128ThrAsp: 3.128 ± 0.07
3.036ThrGlu: 3.036 ± 0.084
1.643ThrPhe: 1.643 ± 0.053
4.812ThrGly: 4.812 ± 0.091
1.056ThrHis: 1.056 ± 0.037
2.327ThrIle: 2.327 ± 0.064
0.937ThrLys: 0.937 ± 0.044
5.977ThrLeu: 5.977 ± 0.101
0.94ThrMet: 0.94 ± 0.04
1.164ThrAsn: 1.164 ± 0.041
3.019ThrPro: 3.019 ± 0.065
1.606ThrGln: 1.606 ± 0.049
3.689ThrArg: 3.689 ± 0.076
2.25ThrSer: 2.25 ± 0.061
2.577ThrThr: 2.577 ± 0.073
4.0ThrVal: 4.0 ± 0.083
0.536ThrTrp: 0.536 ± 0.027
1.071ThrTyr: 1.071 ± 0.042
0.0ThrXaa: 0.0 ± 0.0
Val
8.438ValAla: 8.438 ± 0.134
0.572ValCys: 0.572 ± 0.031
5.291ValAsp: 5.291 ± 0.097
5.389ValGlu: 5.389 ± 0.101
2.595ValPhe: 2.595 ± 0.058
5.833ValGly: 5.833 ± 0.105
1.578ValHis: 1.578 ± 0.055
4.453ValIle: 4.453 ± 0.087
1.822ValLys: 1.822 ± 0.068
7.329ValLeu: 7.329 ± 0.139
1.823ValMet: 1.823 ± 0.053
2.001ValAsn: 2.001 ± 0.061
3.415ValPro: 3.415 ± 0.077
1.955ValGln: 1.955 ± 0.062
5.028ValArg: 5.028 ± 0.094
4.022ValSer: 4.022 ± 0.08
4.198ValThr: 4.198 ± 0.084
6.176ValVal: 6.176 ± 0.133
0.858ValTrp: 0.858 ± 0.04
1.461ValTyr: 1.461 ± 0.049
0.0ValXaa: 0.0 ± 0.0
Trp
1.257TrpAla: 1.257 ± 0.047
0.117TrpCys: 0.117 ± 0.013
0.591TrpAsp: 0.591 ± 0.033
0.621TrpGlu: 0.621 ± 0.031
0.595TrpPhe: 0.595 ± 0.031
0.879TrpGly: 0.879 ± 0.04
0.397TrpHis: 0.397 ± 0.026
0.655TrpIle: 0.655 ± 0.033
0.31TrpLys: 0.31 ± 0.021
2.295TrpLeu: 2.295 ± 0.07
0.371TrpMet: 0.371 ± 0.024
0.319TrpAsn: 0.319 ± 0.025
0.754TrpPro: 0.754 ± 0.042
0.805TrpGln: 0.805 ± 0.037
1.3TrpArg: 1.3 ± 0.051
0.795TrpSer: 0.795 ± 0.039
0.545TrpThr: 0.545 ± 0.028
1.028TrpVal: 1.028 ± 0.044
0.306TrpTrp: 0.306 ± 0.026
0.316TrpTyr: 0.316 ± 0.02
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.157TyrAla: 2.157 ± 0.062
0.216TyrCys: 0.216 ± 0.019
1.299TyrAsp: 1.299 ± 0.044
1.296TyrGlu: 1.296 ± 0.048
0.861TyrPhe: 0.861 ± 0.043
1.844TyrGly: 1.844 ± 0.05
0.606TyrHis: 0.606 ± 0.031
0.82TyrIle: 0.82 ± 0.04
0.454TyrLys: 0.454 ± 0.028
2.521TyrLeu: 2.521 ± 0.061
0.369TyrMet: 0.369 ± 0.023
0.557TyrAsn: 0.557 ± 0.028
1.197TyrPro: 1.197 ± 0.048
1.017TyrGln: 1.017 ± 0.039
2.225TyrArg: 2.225 ± 0.058
1.086TyrSer: 1.086 ± 0.04
1.058TyrThr: 1.058 ± 0.037
1.507TyrVal: 1.507 ± 0.045
0.372TyrTrp: 0.372 ± 0.021
0.635TyrTyr: 0.635 ± 0.035
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 2012 proteins (676788 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