Amino acid dipepetide frequency for Blastococcus sp. CT_GayMR20

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
22.36AlaAla: 22.36 ± 0.238
0.935AlaCys: 0.935 ± 0.025
9.023AlaAsp: 9.023 ± 0.089
8.82AlaGlu: 8.82 ± 0.105
3.482AlaPhe: 3.482 ± 0.051
14.039AlaGly: 14.039 ± 0.139
2.463AlaHis: 2.463 ± 0.043
3.995AlaIle: 3.995 ± 0.062
1.999AlaLys: 1.999 ± 0.046
14.648AlaLeu: 14.648 ± 0.137
2.639AlaMet: 2.639 ± 0.044
1.798AlaAsn: 1.798 ± 0.032
6.823AlaPro: 6.823 ± 0.089
3.683AlaGln: 3.683 ± 0.056
10.364AlaArg: 10.364 ± 0.103
5.861AlaSer: 5.861 ± 0.072
7.473AlaThr: 7.473 ± 0.09
13.798AlaVal: 13.798 ± 0.126
1.833AlaTrp: 1.833 ± 0.044
2.268AlaTyr: 2.268 ± 0.044
0.0AlaXaa: 0.0 ± 0.0
Cys
0.831CysAla: 0.831 ± 0.025
0.084CysCys: 0.084 ± 0.008
0.445CysAsp: 0.445 ± 0.018
0.339CysGlu: 0.339 ± 0.015
0.174CysPhe: 0.174 ± 0.01
0.85CysGly: 0.85 ± 0.028
0.165CysHis: 0.165 ± 0.01
0.19CysIle: 0.19 ± 0.013
0.069CysLys: 0.069 ± 0.007
0.617CysLeu: 0.617 ± 0.024
0.095CysMet: 0.095 ± 0.009
0.111CysAsn: 0.111 ± 0.01
0.466CysPro: 0.466 ± 0.02
0.146CysGln: 0.146 ± 0.011
0.585CysArg: 0.585 ± 0.025
0.394CysSer: 0.394 ± 0.02
0.426CysThr: 0.426 ± 0.019
0.56CysVal: 0.56 ± 0.019
0.109CysTrp: 0.109 ± 0.009
0.126CysTyr: 0.126 ± 0.011
0.0CysXaa: 0.0 ± 0.0
Asp
8.295AspAla: 8.295 ± 0.093
0.368AspCys: 0.368 ± 0.018
4.622AspAsp: 4.622 ± 0.073
4.258AspGlu: 4.258 ± 0.058
1.472AspPhe: 1.472 ± 0.041
6.629AspGly: 6.629 ± 0.086
1.202AspHis: 1.202 ± 0.03
1.712AspIle: 1.712 ± 0.04
0.772AspLys: 0.772 ± 0.026
7.183AspLeu: 7.183 ± 0.077
0.827AspMet: 0.827 ± 0.024
0.766AspAsn: 0.766 ± 0.024
4.792AspPro: 4.792 ± 0.066
1.545AspGln: 1.545 ± 0.038
5.415AspArg: 5.415 ± 0.066
2.315AspSer: 2.315 ± 0.04
2.714AspThr: 2.714 ± 0.054
6.608AspVal: 6.608 ± 0.068
0.99AspTrp: 0.99 ± 0.029
1.043AspTyr: 1.043 ± 0.03
0.0AspXaa: 0.0 ± 0.0
Glu
7.318GluAla: 7.318 ± 0.072
0.319GluCys: 0.319 ± 0.016
3.211GluAsp: 3.211 ± 0.057
3.499GluGlu: 3.499 ± 0.061
1.471GluPhe: 1.471 ± 0.034
4.281GluGly: 4.281 ± 0.072
1.572GluHis: 1.572 ± 0.038
2.251GluIle: 2.251 ± 0.042
1.136GluLys: 1.136 ± 0.031
6.971GluLeu: 6.971 ± 0.091
0.92GluMet: 0.92 ± 0.025
0.927GluAsn: 0.927 ± 0.03
3.366GluPro: 3.366 ± 0.053
2.37GluGln: 2.37 ± 0.041
5.313GluArg: 5.313 ± 0.079
2.429GluSer: 2.429 ± 0.044
2.814GluThr: 2.814 ± 0.056
5.359GluVal: 5.359 ± 0.068
0.762GluTrp: 0.762 ± 0.025
0.951GluTyr: 0.951 ± 0.029
0.0GluXaa: 0.0 ± 0.0
Phe
3.649PheAla: 3.649 ± 0.051
0.243PheCys: 0.243 ± 0.013
1.961PheAsp: 1.961 ± 0.036
1.375PheGlu: 1.375 ± 0.038
0.88PhePhe: 0.88 ± 0.027
3.022PheGly: 3.022 ± 0.047
0.487PheHis: 0.487 ± 0.02
0.702PheIle: 0.702 ± 0.028
0.344PheLys: 0.344 ± 0.016
2.651PheLeu: 2.651 ± 0.048
0.36PheMet: 0.36 ± 0.018
0.44PheAsn: 0.44 ± 0.018
1.387PhePro: 1.387 ± 0.035
0.605PheGln: 0.605 ± 0.021
1.766PheArg: 1.766 ± 0.039
1.424PheSer: 1.424 ± 0.033
1.763PheThr: 1.763 ± 0.039
2.54PheVal: 2.54 ± 0.049
0.411PheTrp: 0.411 ± 0.016
0.548PheTyr: 0.548 ± 0.02
0.0PheXaa: 0.0 ± 0.0
Gly
11.245GlyAla: 11.245 ± 0.108
0.746GlyCys: 0.746 ± 0.025
5.554GlyAsp: 5.554 ± 0.072
5.17GlyGlu: 5.17 ± 0.066
2.822GlyPhe: 2.822 ± 0.051
9.0GlyGly: 9.0 ± 0.13
2.045GlyHis: 2.045 ± 0.037
3.58GlyIle: 3.58 ± 0.059
1.736GlyLys: 1.736 ± 0.038
10.065GlyLeu: 10.065 ± 0.099
2.086GlyMet: 2.086 ± 0.04
1.642GlyAsn: 1.642 ± 0.039
5.198GlyPro: 5.198 ± 0.069
2.716GlyGln: 2.716 ± 0.05
8.097GlyArg: 8.097 ± 0.096
5.434GlySer: 5.434 ± 0.082
5.886GlyThr: 5.886 ± 0.075
8.343GlyVal: 8.343 ± 0.082
1.72GlyTrp: 1.72 ± 0.037
2.049GlyTyr: 2.049 ± 0.045
0.0GlyXaa: 0.0 ± 0.0
His
2.418HisAla: 2.418 ± 0.041
0.164HisCys: 0.164 ± 0.012
1.289HisAsp: 1.289 ± 0.032
1.113HisGlu: 1.113 ± 0.034
0.529HisPhe: 0.529 ± 0.022
2.131HisGly: 2.131 ± 0.04
0.563HisHis: 0.563 ± 0.02
0.495HisIle: 0.495 ± 0.02
0.241HisLys: 0.241 ± 0.014
2.273HisLeu: 2.273 ± 0.05
0.294HisMet: 0.294 ± 0.014
0.292HisAsn: 0.292 ± 0.013
1.6HisPro: 1.6 ± 0.04
0.536HisGln: 0.536 ± 0.017
1.873HisArg: 1.873 ± 0.036
0.854HisSer: 0.854 ± 0.025
0.939HisThr: 0.939 ± 0.027
1.895HisVal: 1.895 ± 0.038
0.308HisTrp: 0.308 ± 0.015
0.383HisTyr: 0.383 ± 0.016
0.0HisXaa: 0.0 ± 0.0
Ile
4.888IleAla: 4.888 ± 0.074
0.258IleCys: 0.258 ± 0.015
2.483IleAsp: 2.483 ± 0.051
2.011IleGlu: 2.011 ± 0.039
0.657IlePhe: 0.657 ± 0.024
3.611IleGly: 3.611 ± 0.066
0.462IleHis: 0.462 ± 0.02
0.825IleIle: 0.825 ± 0.026
0.499IleLys: 0.499 ± 0.02
2.225IleLeu: 2.225 ± 0.048
0.38IleMet: 0.38 ± 0.017
0.63IleAsn: 0.63 ± 0.022
1.703IlePro: 1.703 ± 0.035
0.67IleGln: 0.67 ± 0.023
2.233IleArg: 2.233 ± 0.041
1.754IleSer: 1.754 ± 0.035
2.005IleThr: 2.005 ± 0.041
2.988IleVal: 2.988 ± 0.051
0.354IleTrp: 0.354 ± 0.017
0.519IleTyr: 0.519 ± 0.02
0.0IleXaa: 0.0 ± 0.0
Lys
2.082LysAla: 2.082 ± 0.052
0.075LysCys: 0.075 ± 0.008
0.933LysAsp: 0.933 ± 0.029
0.804LysGlu: 0.804 ± 0.031
0.323LysPhe: 0.323 ± 0.015
1.201LysGly: 1.201 ± 0.034
0.318LysHis: 0.318 ± 0.017
0.561LysIle: 0.561 ± 0.025
0.51LysLys: 0.51 ± 0.021
1.469LysLeu: 1.469 ± 0.04
0.264LysMet: 0.264 ± 0.015
0.329LysAsn: 0.329 ± 0.018
0.941LysPro: 0.941 ± 0.028
0.478LysGln: 0.478 ± 0.021
1.167LysArg: 1.167 ± 0.031
0.754LysSer: 0.754 ± 0.025
0.917LysThr: 0.917 ± 0.029
1.461LysVal: 1.461 ± 0.037
0.199LysTrp: 0.199 ± 0.012
0.309LysTyr: 0.309 ± 0.016
0.0LysXaa: 0.0 ± 0.0
Leu
16.389LeuAla: 16.389 ± 0.134
0.673LeuCys: 0.673 ± 0.027
7.112LeuAsp: 7.112 ± 0.081
5.305LeuGlu: 5.305 ± 0.073
2.584LeuPhe: 2.584 ± 0.05
9.813LeuGly: 9.813 ± 0.105
2.096LeuHis: 2.096 ± 0.043
3.02LeuIle: 3.02 ± 0.05
1.396LeuLys: 1.396 ± 0.036
12.016LeuLeu: 12.016 ± 0.154
1.491LeuMet: 1.491 ± 0.03
1.441LeuAsn: 1.441 ± 0.033
6.791LeuPro: 6.791 ± 0.079
2.629LeuGln: 2.629 ± 0.044
8.566LeuArg: 8.566 ± 0.087
5.492LeuSer: 5.492 ± 0.066
6.784LeuThr: 6.784 ± 0.069
10.521LeuVal: 10.521 ± 0.11
1.152LeuTrp: 1.152 ± 0.036
1.472LeuTyr: 1.472 ± 0.036
0.0LeuXaa: 0.0 ± 0.0
Met
2.376MetAla: 2.376 ± 0.038
0.111MetCys: 0.111 ± 0.01
0.916MetAsp: 0.916 ± 0.027
0.693MetGlu: 0.693 ± 0.021
0.396MetPhe: 0.396 ± 0.015
1.333MetGly: 1.333 ± 0.032
0.326MetHis: 0.326 ± 0.016
0.559MetIle: 0.559 ± 0.021
0.33MetLys: 0.33 ± 0.015
1.56MetLeu: 1.56 ± 0.038
0.217MetMet: 0.217 ± 0.013
0.36MetAsn: 0.36 ± 0.015
1.131MetPro: 1.131 ± 0.028
0.487MetGln: 0.487 ± 0.017
1.393MetArg: 1.393 ± 0.031
1.348MetSer: 1.348 ± 0.028
1.673MetThr: 1.673 ± 0.035
1.359MetVal: 1.359 ± 0.036
0.176MetTrp: 0.176 ± 0.011
0.241MetTyr: 0.241 ± 0.014
0.0MetXaa: 0.0 ± 0.0
Asn
1.98AsnAla: 1.98 ± 0.038
0.131AsnCys: 0.131 ± 0.012
0.88AsnAsp: 0.88 ± 0.027
0.733AsnGlu: 0.733 ± 0.024
0.445AsnPhe: 0.445 ± 0.02
1.598AsnGly: 1.598 ± 0.041
0.314AsnHis: 0.314 ± 0.015
0.532AsnIle: 0.532 ± 0.021
0.267AsnLys: 0.267 ± 0.016
1.562AsnLeu: 1.562 ± 0.036
0.285AsnMet: 0.285 ± 0.015
0.306AsnAsn: 0.306 ± 0.018
1.246AsnPro: 1.246 ± 0.04
0.411AsnGln: 0.411 ± 0.019
1.211AsnArg: 1.211 ± 0.031
0.749AsnSer: 0.749 ± 0.026
0.865AsnThr: 0.865 ± 0.025
1.358AsnVal: 1.358 ± 0.031
0.229AsnTrp: 0.229 ± 0.012
0.319AsnTyr: 0.319 ± 0.015
0.0AsnXaa: 0.0 ± 0.0
Pro
8.701ProAla: 8.701 ± 0.093
0.27ProCys: 0.27 ± 0.015
4.8ProAsp: 4.8 ± 0.059
4.24ProGlu: 4.24 ± 0.069
1.597ProPhe: 1.597 ± 0.038
6.628ProGly: 6.628 ± 0.083
1.172ProHis: 1.172 ± 0.037
1.576ProIle: 1.576 ± 0.035
0.796ProLys: 0.796 ± 0.027
5.343ProLeu: 5.343 ± 0.075
1.056ProMet: 1.056 ± 0.025
0.818ProAsn: 0.818 ± 0.026
4.009ProPro: 4.009 ± 0.09
1.503ProGln: 1.503 ± 0.035
4.075ProArg: 4.075 ± 0.062
3.222ProSer: 3.222 ± 0.051
3.471ProThr: 3.471 ± 0.063
5.994ProVal: 5.994 ± 0.073
0.922ProTrp: 0.922 ± 0.029
1.003ProTyr: 1.003 ± 0.032
0.0ProXaa: 0.0 ± 0.0
Gln
3.684GlnAla: 3.684 ± 0.053
0.148GlnCys: 0.148 ± 0.011
1.199GlnAsp: 1.199 ± 0.03
1.396GlnGlu: 1.396 ± 0.034
0.732GlnPhe: 0.732 ± 0.024
2.015GlnGly: 2.015 ± 0.038
0.622GlnHis: 0.622 ± 0.023
1.027GlnIle: 1.027 ± 0.026
0.473GlnLys: 0.473 ± 0.021
3.382GlnLeu: 3.382 ± 0.05
0.472GlnMet: 0.472 ± 0.019
0.422GlnAsn: 0.422 ± 0.02
1.709GlnPro: 1.709 ± 0.04
1.147GlnGln: 1.147 ± 0.033
2.494GlnArg: 2.494 ± 0.05
1.189GlnSer: 1.189 ± 0.032
1.324GlnThr: 1.324 ± 0.031
2.703GlnVal: 2.703 ± 0.047
0.39GlnTrp: 0.39 ± 0.016
0.5GlnTyr: 0.5 ± 0.02
0.0GlnXaa: 0.0 ± 0.0
Arg
10.045ArgAla: 10.045 ± 0.105
0.552ArgCys: 0.552 ± 0.024
4.392ArgAsp: 4.392 ± 0.061
4.588ArgGlu: 4.588 ± 0.058
2.271ArgPhe: 2.271 ± 0.042
6.07ArgGly: 6.07 ± 0.075
1.767ArgHis: 1.767 ± 0.041
2.885ArgIle: 2.885 ± 0.05
1.24ArgLys: 1.24 ± 0.034
8.933ArgLeu: 8.933 ± 0.095
1.783ArgMet: 1.783 ± 0.042
1.347ArgAsn: 1.347 ± 0.035
5.246ArgPro: 5.246 ± 0.08
2.281ArgGln: 2.281 ± 0.047
8.306ArgArg: 8.306 ± 0.101
4.466ArgSer: 4.466 ± 0.063
5.001ArgThr: 5.001 ± 0.058
6.465ArgVal: 6.465 ± 0.075
1.515ArgTrp: 1.515 ± 0.034
1.687ArgTyr: 1.687 ± 0.037
0.0ArgXaa: 0.0 ± 0.0
Ser
6.624SerAla: 6.624 ± 0.087
0.351SerCys: 0.351 ± 0.015
2.772SerAsp: 2.772 ± 0.045
2.427SerGlu: 2.427 ± 0.043
1.509SerPhe: 1.509 ± 0.028
5.614SerGly: 5.614 ± 0.071
0.916SerHis: 0.916 ± 0.024
1.641SerIle: 1.641 ± 0.037
0.683SerLys: 0.683 ± 0.025
5.007SerLeu: 5.007 ± 0.068
1.099SerMet: 1.099 ± 0.023
0.738SerAsn: 0.738 ± 0.023
3.281SerPro: 3.281 ± 0.056
1.183SerGln: 1.183 ± 0.027
3.853SerArg: 3.853 ± 0.061
3.063SerSer: 3.063 ± 0.068
3.072SerThr: 3.072 ± 0.051
4.477SerVal: 4.477 ± 0.055
0.869SerTrp: 0.869 ± 0.028
1.054SerTyr: 1.054 ± 0.027
0.0SerXaa: 0.0 ± 0.0
Thr
8.419ThrAla: 8.419 ± 0.09
0.393ThrCys: 0.393 ± 0.019
3.623ThrAsp: 3.623 ± 0.058
3.149ThrGlu: 3.149 ± 0.049
1.638ThrPhe: 1.638 ± 0.038
6.406ThrGly: 6.406 ± 0.074
0.995ThrHis: 0.995 ± 0.027
1.807ThrIle: 1.807 ± 0.043
0.84ThrLys: 0.84 ± 0.027
5.596ThrLeu: 5.596 ± 0.074
0.933ThrMet: 0.933 ± 0.025
0.948ThrAsn: 0.948 ± 0.03
3.823ThrPro: 3.823 ± 0.05
1.308ThrGln: 1.308 ± 0.038
3.874ThrArg: 3.874 ± 0.052
3.106ThrSer: 3.106 ± 0.047
3.948ThrThr: 3.948 ± 0.077
6.271ThrVal: 6.271 ± 0.063
0.891ThrTrp: 0.891 ± 0.027
1.102ThrTyr: 1.102 ± 0.025
0.0ThrXaa: 0.0 ± 0.0
Val
13.041ValAla: 13.041 ± 0.116
0.686ValCys: 0.686 ± 0.024
6.276ValAsp: 6.276 ± 0.08
5.644ValGlu: 5.644 ± 0.061
2.558ValPhe: 2.558 ± 0.052
7.978ValGly: 7.978 ± 0.084
2.074ValHis: 2.074 ± 0.04
2.903ValIle: 2.903 ± 0.05
1.263ValLys: 1.263 ± 0.04
11.395ValLeu: 11.395 ± 0.123
1.36ValMet: 1.36 ± 0.035
1.519ValAsn: 1.519 ± 0.035
5.949ValPro: 5.949 ± 0.071
2.358ValGln: 2.358 ± 0.041
7.365ValArg: 7.365 ± 0.077
4.508ValSer: 4.508 ± 0.057
6.02ValThr: 6.02 ± 0.068
10.827ValVal: 10.827 ± 0.102
1.094ValTrp: 1.094 ± 0.026
1.473ValTyr: 1.473 ± 0.04
0.0ValXaa: 0.0 ± 0.0
Trp
1.661TrpAla: 1.661 ± 0.036
0.131TrpCys: 0.131 ± 0.01
0.758TrpAsp: 0.758 ± 0.027
0.642TrpGlu: 0.642 ± 0.022
0.488TrpPhe: 0.488 ± 0.019
0.991TrpGly: 0.991 ± 0.031
0.354TrpHis: 0.354 ± 0.016
0.484TrpIle: 0.484 ± 0.021
0.23TrpLys: 0.23 ± 0.014
1.847TrpLeu: 1.847 ± 0.039
0.245TrpMet: 0.245 ± 0.012
0.298TrpAsn: 0.298 ± 0.017
0.841TrpPro: 0.841 ± 0.027
0.516TrpGln: 0.516 ± 0.021
1.297TrpArg: 1.297 ± 0.031
0.973TrpSer: 0.973 ± 0.033
1.024TrpThr: 1.024 ± 0.029
1.121TrpVal: 1.121 ± 0.031
0.334TrpTrp: 0.334 ± 0.018
0.285TrpTyr: 0.285 ± 0.016
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.294TyrAla: 2.294 ± 0.038
0.146TyrCys: 0.146 ± 0.009
1.278TyrAsp: 1.278 ± 0.031
1.034TyrGlu: 1.034 ± 0.028
0.532TyrPhe: 0.532 ± 0.018
1.921TyrGly: 1.921 ± 0.042
0.279TyrHis: 0.279 ± 0.014
0.41TyrIle: 0.41 ± 0.019
0.273TyrLys: 0.273 ± 0.015
2.002TyrLeu: 2.002 ± 0.043
0.179TyrMet: 0.179 ± 0.012
0.287TyrAsn: 0.287 ± 0.015
0.896TyrPro: 0.896 ± 0.023
0.453TyrGln: 0.453 ± 0.019
1.592TyrArg: 1.592 ± 0.04
0.9TyrSer: 0.9 ± 0.023
0.951TyrThr: 0.951 ± 0.028
1.646TyrVal: 1.646 ± 0.041
0.261TyrTrp: 0.261 ± 0.014
0.354TyrTyr: 0.354 ± 0.017
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 4483 proteins (1354267 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