Amino acid dipepetide frequency for Arthrobacter sp. MYb227

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
16.321AlaAla: 16.321 ± 0.18
0.739AlaCys: 0.739 ± 0.029
5.799AlaAsp: 5.799 ± 0.088
7.079AlaGlu: 7.079 ± 0.083
3.674AlaPhe: 3.674 ± 0.06
10.816AlaGly: 10.816 ± 0.131
2.525AlaHis: 2.525 ± 0.049
5.956AlaIle: 5.956 ± 0.079
4.369AlaLys: 4.369 ± 0.073
12.971AlaLeu: 12.971 ± 0.132
2.989AlaMet: 2.989 ± 0.052
3.19AlaAsn: 3.19 ± 0.071
5.374AlaPro: 5.374 ± 0.087
4.583AlaGln: 4.583 ± 0.065
6.706AlaArg: 6.706 ± 0.064
7.199AlaSer: 7.199 ± 0.077
7.272AlaThr: 7.272 ± 0.084
8.945AlaVal: 8.945 ± 0.105
1.599AlaTrp: 1.599 ± 0.036
2.233AlaTyr: 2.233 ± 0.048
0.0AlaXaa: 0.0 ± 0.0
Cys
0.776CysAla: 0.776 ± 0.025
0.07CysCys: 0.07 ± 0.009
0.343CysAsp: 0.343 ± 0.016
0.339CysGlu: 0.339 ± 0.019
0.222CysPhe: 0.222 ± 0.014
0.71CysGly: 0.71 ± 0.025
0.153CysHis: 0.153 ± 0.011
0.325CysIle: 0.325 ± 0.014
0.153CysLys: 0.153 ± 0.01
0.569CysLeu: 0.569 ± 0.024
0.143CysMet: 0.143 ± 0.009
0.168CysAsn: 0.168 ± 0.013
0.338CysPro: 0.338 ± 0.016
0.17CysGln: 0.17 ± 0.012
0.293CysArg: 0.293 ± 0.016
0.484CysSer: 0.484 ± 0.02
0.42CysThr: 0.42 ± 0.02
0.487CysVal: 0.487 ± 0.019
0.107CysTrp: 0.107 ± 0.01
0.126CysTyr: 0.126 ± 0.01
0.0CysXaa: 0.0 ± 0.0
Asp
6.344AspAla: 6.344 ± 0.091
0.301AspCys: 0.301 ± 0.016
2.497AspAsp: 2.497 ± 0.05
3.677AspGlu: 3.677 ± 0.067
1.88AspPhe: 1.88 ± 0.039
4.343AspGly: 4.343 ± 0.075
1.116AspHis: 1.116 ± 0.032
2.527AspIle: 2.527 ± 0.049
1.485AspLys: 1.485 ± 0.04
5.332AspLeu: 5.332 ± 0.067
0.976AspMet: 0.976 ± 0.027
0.994AspAsn: 0.994 ± 0.027
3.466AspPro: 3.466 ± 0.053
1.639AspGln: 1.639 ± 0.039
2.834AspArg: 2.834 ± 0.055
3.23AspSer: 3.23 ± 0.058
2.751AspThr: 2.751 ± 0.05
3.897AspVal: 3.897 ± 0.06
0.762AspTrp: 0.762 ± 0.029
1.268AspTyr: 1.268 ± 0.037
0.0AspXaa: 0.0 ± 0.0
Glu
6.911GluAla: 6.911 ± 0.088
0.297GluCys: 0.297 ± 0.014
2.992GluAsp: 2.992 ± 0.06
3.511GluGlu: 3.511 ± 0.064
2.042GluPhe: 2.042 ± 0.042
3.808GluGly: 3.808 ± 0.068
1.646GluHis: 1.646 ± 0.035
3.406GluIle: 3.406 ± 0.054
2.114GluLys: 2.114 ± 0.056
7.258GluLeu: 7.258 ± 0.089
1.148GluMet: 1.148 ± 0.034
2.0GluAsn: 2.0 ± 0.04
2.817GluPro: 2.817 ± 0.052
2.308GluGln: 2.308 ± 0.047
3.864GluArg: 3.864 ± 0.059
3.73GluSer: 3.73 ± 0.061
3.332GluThr: 3.332 ± 0.046
4.215GluVal: 4.215 ± 0.064
0.668GluTrp: 0.668 ± 0.028
1.286GluTyr: 1.286 ± 0.035
0.0GluXaa: 0.0 ± 0.0
Phe
4.203PheAla: 4.203 ± 0.064
0.26PheCys: 0.26 ± 0.017
2.104PheAsp: 2.104 ± 0.042
2.064PheGlu: 2.064 ± 0.041
1.298PhePhe: 1.298 ± 0.042
3.528PheGly: 3.528 ± 0.058
0.614PheHis: 0.614 ± 0.022
1.787PheIle: 1.787 ± 0.04
0.986PheLys: 0.986 ± 0.03
3.113PheLeu: 3.113 ± 0.062
0.769PheMet: 0.769 ± 0.03
1.019PheAsn: 1.019 ± 0.03
1.463PhePro: 1.463 ± 0.037
0.81PheGln: 0.81 ± 0.023
1.564PheArg: 1.564 ± 0.036
2.467PheSer: 2.467 ± 0.05
2.36PheThr: 2.36 ± 0.047
2.593PheVal: 2.593 ± 0.05
0.519PheTrp: 0.519 ± 0.019
0.728PheTyr: 0.728 ± 0.027
0.0PheXaa: 0.0 ± 0.0
Gly
9.345GlyAla: 9.345 ± 0.097
0.645GlyCys: 0.645 ± 0.025
3.602GlyAsp: 3.602 ± 0.056
4.462GlyGlu: 4.462 ± 0.067
3.501GlyPhe: 3.501 ± 0.061
6.59GlyGly: 6.59 ± 0.119
1.862GlyHis: 1.862 ± 0.042
5.468GlyIle: 5.468 ± 0.071
3.336GlyLys: 3.336 ± 0.061
8.879GlyLeu: 8.879 ± 0.109
2.202GlyMet: 2.202 ± 0.044
2.553GlyAsn: 2.553 ± 0.051
3.291GlyPro: 3.291 ± 0.049
2.791GlyGln: 2.791 ± 0.042
4.513GlyArg: 4.513 ± 0.075
5.754GlySer: 5.754 ± 0.074
5.828GlyThr: 5.828 ± 0.075
6.541GlyVal: 6.541 ± 0.075
1.56GlyTrp: 1.56 ± 0.041
2.203GlyTyr: 2.203 ± 0.044
0.0GlyXaa: 0.0 ± 0.0
His
2.264HisAla: 2.264 ± 0.042
0.167HisCys: 0.167 ± 0.013
1.146HisAsp: 1.146 ± 0.032
1.338HisGlu: 1.338 ± 0.034
0.706HisPhe: 0.706 ± 0.021
2.104HisGly: 2.104 ± 0.049
0.628HisHis: 0.628 ± 0.024
0.946HisIle: 0.946 ± 0.028
0.575HisLys: 0.575 ± 0.018
2.1HisLeu: 2.1 ± 0.045
0.444HisMet: 0.444 ± 0.017
0.5HisAsn: 0.5 ± 0.02
1.38HisPro: 1.38 ± 0.034
0.831HisGln: 0.831 ± 0.027
1.432HisArg: 1.432 ± 0.035
1.281HisSer: 1.281 ± 0.032
1.147HisThr: 1.147 ± 0.034
1.504HisVal: 1.504 ± 0.039
0.345HisTrp: 0.345 ± 0.017
0.466HisTyr: 0.466 ± 0.021
0.0HisXaa: 0.0 ± 0.0
Ile
6.949IleAla: 6.949 ± 0.083
0.444IleCys: 0.444 ± 0.017
3.44IleAsp: 3.44 ± 0.063
3.231IleGlu: 3.231 ± 0.047
1.92IlePhe: 1.92 ± 0.05
5.041IleGly: 5.041 ± 0.073
1.01IleHis: 1.01 ± 0.032
2.878IleIle: 2.878 ± 0.049
1.568IleLys: 1.568 ± 0.038
4.801IleLeu: 4.801 ± 0.064
1.065IleMet: 1.065 ± 0.034
1.687IleAsn: 1.687 ± 0.039
2.872IlePro: 2.872 ± 0.054
1.373IleGln: 1.373 ± 0.031
2.868IleArg: 2.868 ± 0.047
3.799IleSer: 3.799 ± 0.054
3.395IleThr: 3.395 ± 0.052
4.116IleVal: 4.116 ± 0.066
0.641IleTrp: 0.641 ± 0.027
1.055IleTyr: 1.055 ± 0.03
0.0IleXaa: 0.0 ± 0.0
Lys
3.692LysAla: 3.692 ± 0.071
0.148LysCys: 0.148 ± 0.011
1.875LysAsp: 1.875 ± 0.049
1.693LysGlu: 1.693 ± 0.047
1.025LysPhe: 1.025 ± 0.033
1.916LysGly: 1.916 ± 0.047
0.78LysHis: 0.78 ± 0.027
2.054LysIle: 2.054 ± 0.042
1.429LysLys: 1.429 ± 0.045
3.34LysLeu: 3.34 ± 0.05
0.896LysMet: 0.896 ± 0.026
1.286LysAsn: 1.286 ± 0.033
1.892LysPro: 1.892 ± 0.052
1.012LysGln: 1.012 ± 0.028
2.052LysArg: 2.052 ± 0.041
2.155LysSer: 2.155 ± 0.052
2.108LysThr: 2.108 ± 0.043
2.591LysVal: 2.591 ± 0.051
0.347LysTrp: 0.347 ± 0.017
0.788LysTyr: 0.788 ± 0.029
0.0LysXaa: 0.0 ± 0.0
Leu
13.653LeuAla: 13.653 ± 0.142
0.724LeuCys: 0.724 ± 0.025
5.765LeuAsp: 5.765 ± 0.079
6.375LeuGlu: 6.375 ± 0.078
3.145LeuPhe: 3.145 ± 0.066
9.641LeuGly: 9.641 ± 0.114
1.978LeuHis: 1.978 ± 0.044
5.514LeuIle: 5.514 ± 0.086
3.025LeuLys: 3.025 ± 0.046
10.848LeuLeu: 10.848 ± 0.146
2.251LeuMet: 2.251 ± 0.049
3.019LeuAsn: 3.019 ± 0.044
5.461LeuPro: 5.461 ± 0.071
2.74LeuGln: 2.74 ± 0.052
6.453LeuArg: 6.453 ± 0.074
6.941LeuSer: 6.941 ± 0.075
5.9LeuThr: 5.9 ± 0.074
8.414LeuVal: 8.414 ± 0.102
1.311LeuTrp: 1.311 ± 0.039
1.71LeuTyr: 1.71 ± 0.037
0.0LeuXaa: 0.0 ± 0.0
Met
2.579MetAla: 2.579 ± 0.056
0.143MetCys: 0.143 ± 0.011
1.111MetAsp: 1.111 ± 0.029
1.074MetGlu: 1.074 ± 0.031
0.711MetPhe: 0.711 ± 0.025
1.88MetGly: 1.88 ± 0.044
0.429MetHis: 0.429 ± 0.022
1.309MetIle: 1.309 ± 0.04
0.78MetLys: 0.78 ± 0.027
2.515MetLeu: 2.515 ± 0.046
0.511MetMet: 0.511 ± 0.022
0.792MetAsn: 0.792 ± 0.026
1.162MetPro: 1.162 ± 0.03
0.677MetGln: 0.677 ± 0.026
1.417MetArg: 1.417 ± 0.037
1.917MetSer: 1.917 ± 0.04
1.511MetThr: 1.511 ± 0.034
1.808MetVal: 1.808 ± 0.041
0.24MetTrp: 0.24 ± 0.015
0.365MetTyr: 0.365 ± 0.017
0.0MetXaa: 0.0 ± 0.0
Asn
3.379AsnAla: 3.379 ± 0.057
0.17AsnCys: 0.17 ± 0.011
1.503AsnAsp: 1.503 ± 0.037
1.543AsnGlu: 1.543 ± 0.037
0.973AsnPhe: 0.973 ± 0.028
2.424AsnGly: 2.424 ± 0.053
0.622AsnHis: 0.622 ± 0.022
1.566AsnIle: 1.566 ± 0.04
0.988AsnLys: 0.988 ± 0.026
2.841AsnLeu: 2.841 ± 0.049
0.675AsnMet: 0.675 ± 0.028
0.913AsnAsn: 0.913 ± 0.031
2.113AsnPro: 2.113 ± 0.038
0.962AsnGln: 0.962 ± 0.028
1.535AsnArg: 1.535 ± 0.034
1.787AsnSer: 1.787 ± 0.041
1.87AsnThr: 1.87 ± 0.041
2.111AsnVal: 2.111 ± 0.04
0.421AsnTrp: 0.421 ± 0.02
0.694AsnTyr: 0.694 ± 0.023
0.0AsnXaa: 0.0 ± 0.0
Pro
6.143ProAla: 6.143 ± 0.088
0.214ProCys: 0.214 ± 0.014
2.648ProAsp: 2.648 ± 0.047
3.986ProGlu: 3.986 ± 0.058
1.607ProPhe: 1.607 ± 0.041
4.471ProGly: 4.471 ± 0.064
1.08ProHis: 1.08 ± 0.034
2.188ProIle: 2.188 ± 0.046
1.68ProLys: 1.68 ± 0.043
4.686ProLeu: 4.686 ± 0.07
1.078ProMet: 1.078 ± 0.028
1.359ProAsn: 1.359 ± 0.031
1.645ProPro: 1.645 ± 0.043
1.849ProGln: 1.849 ± 0.039
2.663ProArg: 2.663 ± 0.051
3.132ProSer: 3.132 ± 0.061
3.219ProThr: 3.219 ± 0.056
4.378ProVal: 4.378 ± 0.07
0.753ProTrp: 0.753 ± 0.023
1.017ProTyr: 1.017 ± 0.032
0.0ProXaa: 0.0 ± 0.0
Gln
3.847GlnAla: 3.847 ± 0.053
0.184GlnCys: 0.184 ± 0.013
1.588GlnAsp: 1.588 ± 0.039
1.878GlnGlu: 1.878 ± 0.038
0.943GlnPhe: 0.943 ± 0.029
2.445GlnGly: 2.445 ± 0.046
0.741GlnHis: 0.741 ± 0.024
1.903GlnIle: 1.903 ± 0.031
1.002GlnLys: 1.002 ± 0.026
3.762GlnLeu: 3.762 ± 0.061
0.702GlnMet: 0.702 ± 0.022
0.941GlnAsn: 0.941 ± 0.028
1.424GlnPro: 1.424 ± 0.038
1.353GlnGln: 1.353 ± 0.041
2.449GlnArg: 2.449 ± 0.046
1.807GlnSer: 1.807 ± 0.042
1.732GlnThr: 1.732 ± 0.043
2.529GlnVal: 2.529 ± 0.042
0.511GlnTrp: 0.511 ± 0.02
0.692GlnTyr: 0.692 ± 0.024
0.0GlnXaa: 0.0 ± 0.0
Arg
6.463ArgAla: 6.463 ± 0.083
0.35ArgCys: 0.35 ± 0.016
2.858ArgAsp: 2.858 ± 0.054
3.746ArgGlu: 3.746 ± 0.058
2.149ArgPhe: 2.149 ± 0.041
4.24ArgGly: 4.24 ± 0.062
1.305ArgHis: 1.305 ± 0.031
3.426ArgIle: 3.426 ± 0.052
2.054ArgLys: 2.054 ± 0.047
5.791ArgLeu: 5.791 ± 0.074
1.447ArgMet: 1.447 ± 0.033
1.765ArgAsn: 1.765 ± 0.043
2.537ArgPro: 2.537 ± 0.05
1.917ArgGln: 1.917 ± 0.039
3.989ArgArg: 3.989 ± 0.064
3.632ArgSer: 3.632 ± 0.061
3.604ArgThr: 3.604 ± 0.06
4.326ArgVal: 4.326 ± 0.062
0.928ArgTrp: 0.928 ± 0.027
1.362ArgTyr: 1.362 ± 0.034
0.0ArgXaa: 0.0 ± 0.0
Ser
7.441SerAla: 7.441 ± 0.088
0.398SerCys: 0.398 ± 0.019
2.983SerAsp: 2.983 ± 0.053
3.468SerGlu: 3.468 ± 0.048
2.323SerPhe: 2.323 ± 0.045
6.017SerGly: 6.017 ± 0.068
1.233SerHis: 1.233 ± 0.034
3.49SerIle: 3.49 ± 0.06
2.202SerLys: 2.202 ± 0.047
6.611SerLeu: 6.611 ± 0.075
1.867SerMet: 1.867 ± 0.038
1.903SerAsn: 1.903 ± 0.044
3.044SerPro: 3.044 ± 0.055
1.983SerGln: 1.983 ± 0.042
3.395SerArg: 3.395 ± 0.053
4.433SerSer: 4.433 ± 0.077
4.374SerThr: 4.374 ± 0.07
5.031SerVal: 5.031 ± 0.06
1.054SerTrp: 1.054 ± 0.031
1.488SerTyr: 1.488 ± 0.041
0.0SerXaa: 0.0 ± 0.0
Thr
6.908ThrAla: 6.908 ± 0.076
0.35ThrCys: 0.35 ± 0.018
3.213ThrAsp: 3.213 ± 0.052
3.598ThrGlu: 3.598 ± 0.059
1.969ThrPhe: 1.969 ± 0.044
5.731ThrGly: 5.731 ± 0.069
1.382ThrHis: 1.382 ± 0.032
3.18ThrIle: 3.18 ± 0.057
1.924ThrLys: 1.924 ± 0.042
6.273ThrLeu: 6.273 ± 0.072
1.297ThrMet: 1.297 ± 0.035
1.818ThrAsn: 1.818 ± 0.043
3.697ThrPro: 3.697 ± 0.067
1.976ThrGln: 1.976 ± 0.042
3.312ThrArg: 3.312 ± 0.055
3.75ThrSer: 3.75 ± 0.055
3.763ThrThr: 3.763 ± 0.061
4.749ThrVal: 4.749 ± 0.074
0.821ThrTrp: 0.821 ± 0.025
1.237ThrTyr: 1.237 ± 0.034
0.0ThrXaa: 0.0 ± 0.0
Val
9.281ValAla: 9.281 ± 0.099
0.516ValCys: 0.516 ± 0.022
4.004ValAsp: 4.004 ± 0.06
4.361ValGlu: 4.361 ± 0.068
2.746ValPhe: 2.746 ± 0.056
6.247ValGly: 6.247 ± 0.084
1.548ValHis: 1.548 ± 0.04
4.564ValIle: 4.564 ± 0.056
2.267ValLys: 2.267 ± 0.052
9.149ValLeu: 9.149 ± 0.101
1.72ValMet: 1.72 ± 0.039
2.128ValAsn: 2.128 ± 0.044
4.102ValPro: 4.102 ± 0.062
2.298ValGln: 2.298 ± 0.043
4.321ValArg: 4.321 ± 0.052
5.059ValSer: 5.059 ± 0.066
4.438ValThr: 4.438 ± 0.074
6.428ValVal: 6.428 ± 0.079
0.82ValTrp: 0.82 ± 0.027
1.31ValTyr: 1.31 ± 0.03
0.0ValXaa: 0.0 ± 0.0
Trp
1.477TrpAla: 1.477 ± 0.034
0.108TrpCys: 0.108 ± 0.009
0.754TrpAsp: 0.754 ± 0.023
0.752TrpGlu: 0.752 ± 0.022
0.569TrpPhe: 0.569 ± 0.024
1.019TrpGly: 1.019 ± 0.029
0.316TrpHis: 0.316 ± 0.017
0.867TrpIle: 0.867 ± 0.028
0.484TrpLys: 0.484 ± 0.02
1.684TrpLeu: 1.684 ± 0.043
0.364TrpMet: 0.364 ± 0.017
0.511TrpAsn: 0.511 ± 0.022
0.611TrpPro: 0.611 ± 0.023
0.495TrpGln: 0.495 ± 0.02
0.862TrpArg: 0.862 ± 0.026
0.814TrpSer: 0.814 ± 0.027
0.683TrpThr: 0.683 ± 0.023
1.128TrpVal: 1.128 ± 0.03
0.315TrpTrp: 0.315 ± 0.019
0.283TrpTyr: 0.283 ± 0.018
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.364TyrAla: 2.364 ± 0.046
0.169TyrCys: 0.169 ± 0.011
1.094TyrAsp: 1.094 ± 0.03
1.174TyrGlu: 1.174 ± 0.037
0.844TyrPhe: 0.844 ± 0.028
1.954TyrGly: 1.954 ± 0.041
0.335TyrHis: 0.335 ± 0.016
0.801TyrIle: 0.801 ± 0.028
0.657TyrLys: 0.657 ± 0.026
2.344TyrLeu: 2.344 ± 0.049
0.384TyrMet: 0.384 ± 0.018
0.545TyrAsn: 0.545 ± 0.02
1.109TyrPro: 1.109 ± 0.031
0.665TyrGln: 0.665 ± 0.023
1.369TyrArg: 1.369 ± 0.033
1.367TyrSer: 1.367 ± 0.033
1.24TyrThr: 1.24 ± 0.032
1.518TyrVal: 1.518 ± 0.035
0.375TyrTrp: 0.375 ± 0.018
0.485TyrTyr: 0.485 ± 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 3811 proteins (1217330 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