Amino acid dipepetide frequency for Microbacterium pygmaeum

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
20.909AlaAla: 20.909 ± 0.183
0.648AlaCys: 0.648 ± 0.026
8.796AlaAsp: 8.796 ± 0.098
7.84AlaGlu: 7.84 ± 0.107
4.098AlaPhe: 4.098 ± 0.067
12.282AlaGly: 12.282 ± 0.118
2.479AlaHis: 2.479 ± 0.052
6.395AlaIle: 6.395 ± 0.07
2.402AlaLys: 2.402 ± 0.056
13.926AlaLeu: 13.926 ± 0.134
2.705AlaMet: 2.705 ± 0.052
2.195AlaAsn: 2.195 ± 0.047
6.506AlaPro: 6.506 ± 0.101
3.848AlaGln: 3.848 ± 0.062
9.346AlaArg: 9.346 ± 0.108
7.588AlaSer: 7.588 ± 0.098
7.388AlaThr: 7.388 ± 0.083
11.605AlaVal: 11.605 ± 0.131
1.948AlaTrp: 1.948 ± 0.046
2.498AlaTyr: 2.498 ± 0.048
0.0AlaXaa: 0.0 ± 0.0
Cys
0.666CysAla: 0.666 ± 0.028
0.045CysCys: 0.045 ± 0.006
0.314CysAsp: 0.314 ± 0.016
0.238CysGlu: 0.238 ± 0.013
0.163CysPhe: 0.163 ± 0.011
0.506CysGly: 0.506 ± 0.021
0.111CysHis: 0.111 ± 0.009
0.189CysIle: 0.189 ± 0.015
0.053CysLys: 0.053 ± 0.006
0.428CysLeu: 0.428 ± 0.018
0.076CysMet: 0.076 ± 0.009
0.097CysAsn: 0.097 ± 0.009
0.262CysPro: 0.262 ± 0.015
0.109CysGln: 0.109 ± 0.012
0.311CysArg: 0.311 ± 0.017
0.293CysSer: 0.293 ± 0.017
0.304CysThr: 0.304 ± 0.02
0.404CysVal: 0.404 ± 0.017
0.079CysTrp: 0.079 ± 0.008
0.112CysTyr: 0.112 ± 0.01
0.0CysXaa: 0.0 ± 0.0
Asp
9.798AspAla: 9.798 ± 0.116
0.234AspCys: 0.234 ± 0.016
4.458AspAsp: 4.458 ± 0.088
4.499AspGlu: 4.499 ± 0.073
1.764AspPhe: 1.764 ± 0.039
6.138AspGly: 6.138 ± 0.089
1.187AspHis: 1.187 ± 0.032
2.651AspIle: 2.651 ± 0.047
0.93AspLys: 0.93 ± 0.031
6.337AspLeu: 6.337 ± 0.076
0.843AspMet: 0.843 ± 0.028
0.97AspAsn: 0.97 ± 0.038
4.322AspPro: 4.322 ± 0.066
1.607AspGln: 1.607 ± 0.039
4.714AspArg: 4.714 ± 0.074
2.778AspSer: 2.778 ± 0.054
2.896AspThr: 2.896 ± 0.055
5.641AspVal: 5.641 ± 0.084
1.003AspTrp: 1.003 ± 0.035
1.305AspTyr: 1.305 ± 0.037
0.0AspXaa: 0.0 ± 0.0
Glu
6.772GluAla: 6.772 ± 0.081
0.224GluCys: 0.224 ± 0.015
2.905GluAsp: 2.905 ± 0.058
2.77GluGlu: 2.77 ± 0.062
1.811GluPhe: 1.811 ± 0.044
4.092GluGly: 4.092 ± 0.07
1.416GluHis: 1.416 ± 0.04
2.814GluIle: 2.814 ± 0.052
1.271GluLys: 1.271 ± 0.038
6.379GluLeu: 6.379 ± 0.084
0.878GluMet: 0.878 ± 0.03
1.181GluAsn: 1.181 ± 0.031
3.038GluPro: 3.038 ± 0.057
2.093GluGln: 2.093 ± 0.045
5.276GluArg: 5.276 ± 0.077
3.022GluSer: 3.022 ± 0.055
2.975GluThr: 2.975 ± 0.051
4.559GluVal: 4.559 ± 0.077
0.921GluTrp: 0.921 ± 0.033
1.179GluTyr: 1.179 ± 0.038
0.0GluXaa: 0.0 ± 0.0
Phe
4.49PheAla: 4.49 ± 0.07
0.155PheCys: 0.155 ± 0.012
2.402PheAsp: 2.402 ± 0.048
1.808PheGlu: 1.808 ± 0.044
1.122PhePhe: 1.122 ± 0.038
3.435PheGly: 3.435 ± 0.065
0.579PheHis: 0.579 ± 0.022
1.271PheIle: 1.271 ± 0.035
0.427PheLys: 0.427 ± 0.02
2.949PheLeu: 2.949 ± 0.057
0.427PheMet: 0.427 ± 0.022
0.655PheAsn: 0.655 ± 0.025
1.476PhePro: 1.476 ± 0.034
0.808PheGln: 0.808 ± 0.023
1.806PheArg: 1.806 ± 0.045
1.761PheSer: 1.761 ± 0.038
2.105PheThr: 2.105 ± 0.036
2.904PheVal: 2.904 ± 0.056
0.552PheTrp: 0.552 ± 0.026
0.688PheTyr: 0.688 ± 0.026
0.0PheXaa: 0.0 ± 0.0
Gly
10.883GlyAla: 10.883 ± 0.125
0.507GlyCys: 0.507 ± 0.02
5.158GlyAsp: 5.158 ± 0.068
4.99GlyGlu: 4.99 ± 0.076
3.365GlyPhe: 3.365 ± 0.057
7.718GlyGly: 7.718 ± 0.108
1.742GlyHis: 1.742 ± 0.037
5.179GlyIle: 5.179 ± 0.074
1.995GlyLys: 1.995 ± 0.049
8.577GlyLeu: 8.577 ± 0.099
2.079GlyMet: 2.079 ± 0.047
1.705GlyAsn: 1.705 ± 0.046
3.942GlyPro: 3.942 ± 0.061
2.411GlyGln: 2.411 ± 0.049
6.403GlyArg: 6.403 ± 0.081
5.48GlySer: 5.48 ± 0.075
5.484GlyThr: 5.484 ± 0.078
7.829GlyVal: 7.829 ± 0.091
1.731GlyTrp: 1.731 ± 0.045
2.155GlyTyr: 2.155 ± 0.046
0.0GlyXaa: 0.0 ± 0.0
His
2.389HisAla: 2.389 ± 0.051
0.114HisCys: 0.114 ± 0.012
1.303HisAsp: 1.303 ± 0.036
1.089HisGlu: 1.089 ± 0.031
0.584HisPhe: 0.584 ± 0.021
1.95HisGly: 1.95 ± 0.043
0.564HisHis: 0.564 ± 0.026
0.809HisIle: 0.809 ± 0.027
0.266HisLys: 0.266 ± 0.015
1.979HisLeu: 1.979 ± 0.044
0.31HisMet: 0.31 ± 0.017
0.346HisAsn: 0.346 ± 0.017
1.514HisPro: 1.514 ± 0.046
0.46HisGln: 0.46 ± 0.021
1.532HisArg: 1.532 ± 0.037
1.024HisSer: 1.024 ± 0.032
0.992HisThr: 0.992 ± 0.033
1.654HisVal: 1.654 ± 0.037
0.285HisTrp: 0.285 ± 0.016
0.421HisTyr: 0.421 ± 0.022
0.0HisXaa: 0.0 ± 0.0
Ile
7.573IleAla: 7.573 ± 0.097
0.274IleCys: 0.274 ± 0.016
3.758IleAsp: 3.758 ± 0.063
2.95IleGlu: 2.95 ± 0.052
1.331IlePhe: 1.331 ± 0.035
4.968IleGly: 4.968 ± 0.066
0.749IleHis: 0.749 ± 0.027
1.912IleIle: 1.912 ± 0.056
0.7IleLys: 0.7 ± 0.027
4.136IleLeu: 4.136 ± 0.072
0.579IleMet: 0.579 ± 0.027
0.9IleAsn: 0.9 ± 0.03
2.67IlePro: 2.67 ± 0.044
1.063IleGln: 1.063 ± 0.03
2.933IleArg: 2.933 ± 0.051
2.515IleSer: 2.515 ± 0.047
2.91IleThr: 2.91 ± 0.054
4.952IleVal: 4.952 ± 0.08
0.584IleTrp: 0.584 ± 0.027
0.816IleTyr: 0.816 ± 0.026
0.0IleXaa: 0.0 ± 0.0
Lys
2.241LysAla: 2.241 ± 0.053
0.066LysCys: 0.066 ± 0.009
1.047LysAsp: 1.047 ± 0.037
0.828LysGlu: 0.828 ± 0.03
0.416LysPhe: 0.416 ± 0.02
1.398LysGly: 1.398 ± 0.043
0.397LysHis: 0.397 ± 0.018
0.846LysIle: 0.846 ± 0.032
0.657LysLys: 0.657 ± 0.026
1.674LysLeu: 1.674 ± 0.043
0.332LysMet: 0.332 ± 0.016
0.442LysAsn: 0.442 ± 0.02
1.123LysPro: 1.123 ± 0.032
0.587LysGln: 0.587 ± 0.026
1.419LysArg: 1.419 ± 0.043
1.031LysSer: 1.031 ± 0.035
1.199LysThr: 1.199 ± 0.037
1.473LysVal: 1.473 ± 0.043
0.242LysTrp: 0.242 ± 0.015
0.399LysTyr: 0.399 ± 0.019
0.0LysXaa: 0.0 ± 0.0
Leu
14.357LeuAla: 14.357 ± 0.134
0.504LeuCys: 0.504 ± 0.022
6.624LeuAsp: 6.624 ± 0.091
5.552LeuGlu: 5.552 ± 0.078
2.906LeuPhe: 2.906 ± 0.06
9.064LeuGly: 9.064 ± 0.103
1.885LeuHis: 1.885 ± 0.041
4.85LeuIle: 4.85 ± 0.082
1.473LeuLys: 1.473 ± 0.047
9.918LeuLeu: 9.918 ± 0.116
1.597LeuMet: 1.597 ± 0.042
1.714LeuAsn: 1.714 ± 0.043
5.453LeuPro: 5.453 ± 0.073
2.562LeuGln: 2.562 ± 0.046
7.701LeuArg: 7.701 ± 0.101
5.891LeuSer: 5.891 ± 0.076
6.133LeuThr: 6.133 ± 0.074
9.056LeuVal: 9.056 ± 0.095
1.367LeuTrp: 1.367 ± 0.039
1.674LeuTyr: 1.674 ± 0.042
0.0LeuXaa: 0.0 ± 0.0
Met
2.024MetAla: 2.024 ± 0.043
0.089MetCys: 0.089 ± 0.009
0.81MetAsp: 0.81 ± 0.027
0.567MetGlu: 0.567 ± 0.021
0.515MetPhe: 0.515 ± 0.023
1.314MetGly: 1.314 ± 0.029
0.344MetHis: 0.344 ± 0.017
0.904MetIle: 0.904 ± 0.03
0.409MetLys: 0.409 ± 0.021
1.863MetLeu: 1.863 ± 0.043
0.325MetMet: 0.325 ± 0.017
0.483MetAsn: 0.483 ± 0.021
1.233MetPro: 1.233 ± 0.038
0.55MetGln: 0.55 ± 0.024
1.399MetArg: 1.399 ± 0.04
1.517MetSer: 1.517 ± 0.037
1.73MetThr: 1.73 ± 0.04
1.276MetVal: 1.276 ± 0.03
0.223MetTrp: 0.223 ± 0.013
0.304MetTyr: 0.304 ± 0.016
0.0MetXaa: 0.0 ± 0.0
Asn
2.426AsnAla: 2.426 ± 0.051
0.09AsnCys: 0.09 ± 0.009
1.199AsnAsp: 1.199 ± 0.034
0.958AsnGlu: 0.958 ± 0.03
0.624AsnPhe: 0.624 ± 0.022
1.799AsnGly: 1.799 ± 0.048
0.343AsnHis: 0.343 ± 0.019
0.853AsnIle: 0.853 ± 0.028
0.336AsnLys: 0.336 ± 0.017
1.816AsnLeu: 1.816 ± 0.042
0.313AsnMet: 0.313 ± 0.018
0.427AsnAsn: 0.427 ± 0.023
1.552AsnPro: 1.552 ± 0.038
0.507AsnGln: 0.507 ± 0.022
1.227AsnArg: 1.227 ± 0.033
0.999AsnSer: 0.999 ± 0.033
1.085AsnThr: 1.085 ± 0.041
1.658AsnVal: 1.658 ± 0.046
0.301AsnTrp: 0.301 ± 0.017
0.446AsnTyr: 0.446 ± 0.022
0.0AsnXaa: 0.0 ± 0.0
Pro
7.433ProAla: 7.433 ± 0.089
0.169ProCys: 0.169 ± 0.011
4.213ProAsp: 4.213 ± 0.068
3.64ProGlu: 3.64 ± 0.064
1.807ProPhe: 1.807 ± 0.043
5.061ProGly: 5.061 ± 0.09
1.105ProHis: 1.105 ± 0.031
2.34ProIle: 2.34 ± 0.046
0.991ProLys: 0.991 ± 0.033
4.958ProLeu: 4.958 ± 0.066
0.881ProMet: 0.881 ± 0.031
1.021ProAsn: 1.021 ± 0.034
2.559ProPro: 2.559 ± 0.064
1.555ProGln: 1.555 ± 0.037
3.435ProArg: 3.435 ± 0.069
3.138ProSer: 3.138 ± 0.059
3.492ProThr: 3.492 ± 0.055
4.823ProVal: 4.823 ± 0.074
0.878ProTrp: 0.878 ± 0.03
1.049ProTyr: 1.049 ± 0.032
0.0ProXaa: 0.0 ± 0.0
Gln
3.273GlnAla: 3.273 ± 0.055
0.114GlnCys: 0.114 ± 0.009
1.375GlnAsp: 1.375 ± 0.038
1.279GlnGlu: 1.279 ± 0.034
0.907GlnPhe: 0.907 ± 0.029
2.002GlnGly: 2.002 ± 0.042
0.662GlnHis: 0.662 ± 0.026
1.434GlnIle: 1.434 ± 0.04
0.617GlnLys: 0.617 ± 0.024
3.221GlnLeu: 3.221 ± 0.065
0.498GlnMet: 0.498 ± 0.023
0.631GlnAsn: 0.631 ± 0.026
1.509GlnPro: 1.509 ± 0.033
1.078GlnGln: 1.078 ± 0.031
2.426GlnArg: 2.426 ± 0.048
1.523GlnSer: 1.523 ± 0.042
1.666GlnThr: 1.666 ± 0.036
2.226GlnVal: 2.226 ± 0.05
0.515GlnTrp: 0.515 ± 0.022
0.601GlnTyr: 0.601 ± 0.023
0.0GlnXaa: 0.0 ± 0.0
Arg
9.223ArgAla: 9.223 ± 0.108
0.296ArgCys: 0.296 ± 0.019
4.452ArgAsp: 4.452 ± 0.068
4.28ArgGlu: 4.28 ± 0.063
2.44ArgPhe: 2.44 ± 0.043
5.621ArgGly: 5.621 ± 0.089
1.547ArgHis: 1.547 ± 0.04
3.862ArgIle: 3.862 ± 0.063
1.28ArgLys: 1.28 ± 0.04
7.308ArgLeu: 7.308 ± 0.094
1.79ArgMet: 1.79 ± 0.036
1.331ArgAsn: 1.331 ± 0.034
3.77ArgPro: 3.77 ± 0.066
1.955ArgGln: 1.955 ± 0.045
6.666ArgArg: 6.666 ± 0.099
4.453ArgSer: 4.453 ± 0.066
4.485ArgThr: 4.485 ± 0.063
6.088ArgVal: 6.088 ± 0.089
1.258ArgTrp: 1.258 ± 0.04
1.61ArgTyr: 1.61 ± 0.039
0.0ArgXaa: 0.0 ± 0.0
Ser
7.541SerAla: 7.541 ± 0.099
0.244SerCys: 0.244 ± 0.017
3.381SerAsp: 3.381 ± 0.061
2.783SerGlu: 2.783 ± 0.046
1.914SerPhe: 1.914 ± 0.042
5.874SerGly: 5.874 ± 0.069
1.025SerHis: 1.025 ± 0.031
2.816SerIle: 2.816 ± 0.05
0.974SerLys: 0.974 ± 0.032
5.396SerLeu: 5.396 ± 0.074
1.185SerMet: 1.185 ± 0.033
1.052SerAsn: 1.052 ± 0.036
3.166SerPro: 3.166 ± 0.054
1.375SerGln: 1.375 ± 0.034
3.86SerArg: 3.86 ± 0.053
3.451SerSer: 3.451 ± 0.064
3.664SerThr: 3.664 ± 0.056
5.024SerVal: 5.024 ± 0.07
0.943SerTrp: 0.943 ± 0.028
1.152SerTyr: 1.152 ± 0.034
0.0SerXaa: 0.0 ± 0.0
Thr
7.744ThrAla: 7.744 ± 0.088
0.289ThrCys: 0.289 ± 0.015
3.858ThrAsp: 3.858 ± 0.066
3.001ThrGlu: 3.001 ± 0.058
1.833ThrPhe: 1.833 ± 0.041
5.707ThrGly: 5.707 ± 0.077
1.101ThrHis: 1.101 ± 0.033
3.011ThrIle: 3.011 ± 0.056
1.072ThrLys: 1.072 ± 0.032
5.966ThrLeu: 5.966 ± 0.066
0.999ThrMet: 0.999 ± 0.029
1.17ThrAsn: 1.17 ± 0.035
3.882ThrPro: 3.882 ± 0.069
1.534ThrGln: 1.534 ± 0.039
3.848ThrArg: 3.848 ± 0.051
3.319ThrSer: 3.319 ± 0.063
3.818ThrThr: 3.818 ± 0.069
5.587ThrVal: 5.587 ± 0.072
0.906ThrTrp: 0.906 ± 0.029
1.177ThrTyr: 1.177 ± 0.038
0.0ThrXaa: 0.0 ± 0.0
Val
11.494ValAla: 11.494 ± 0.114
0.498ValCys: 0.498 ± 0.026
5.804ValAsp: 5.804 ± 0.074
4.675ValGlu: 4.675 ± 0.068
2.902ValPhe: 2.902 ± 0.052
7.233ValGly: 7.233 ± 0.092
1.714ValHis: 1.714 ± 0.044
4.635ValIle: 4.635 ± 0.073
1.383ValLys: 1.383 ± 0.043
9.555ValLeu: 9.555 ± 0.096
1.438ValMet: 1.438 ± 0.035
1.724ValAsn: 1.724 ± 0.044
4.79ValPro: 4.79 ± 0.072
2.335ValGln: 2.335 ± 0.04
6.354ValArg: 6.354 ± 0.089
4.929ValSer: 4.929 ± 0.07
5.443ValThr: 5.443 ± 0.078
8.597ValVal: 8.597 ± 0.099
1.186ValTrp: 1.186 ± 0.034
1.551ValTyr: 1.551 ± 0.032
0.0ValXaa: 0.0 ± 0.0
Trp
1.659TrpAla: 1.659 ± 0.04
0.085TrpCys: 0.085 ± 0.007
0.859TrpAsp: 0.859 ± 0.03
0.677TrpGlu: 0.677 ± 0.028
0.615TrpPhe: 0.615 ± 0.025
1.164TrpGly: 1.164 ± 0.044
0.327TrpHis: 0.327 ± 0.016
0.761TrpIle: 0.761 ± 0.028
0.281TrpLys: 0.281 ± 0.016
1.785TrpLeu: 1.785 ± 0.041
0.362TrpMet: 0.362 ± 0.016
0.463TrpAsn: 0.463 ± 0.021
0.753TrpPro: 0.753 ± 0.025
0.556TrpGln: 0.556 ± 0.023
1.343TrpArg: 1.343 ± 0.038
1.033TrpSer: 1.033 ± 0.031
0.965TrpThr: 0.965 ± 0.031
1.257TrpVal: 1.257 ± 0.04
0.39TrpTrp: 0.39 ± 0.02
0.306TrpTyr: 0.306 ± 0.017
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.507TyrAla: 2.507 ± 0.042
0.115TyrCys: 0.115 ± 0.011
1.36TyrAsp: 1.36 ± 0.042
1.15TyrGlu: 1.15 ± 0.032
0.702TyrPhe: 0.702 ± 0.025
2.007TyrGly: 2.007 ± 0.039
0.306TyrHis: 0.306 ± 0.014
0.741TyrIle: 0.741 ± 0.028
0.302TyrLys: 0.302 ± 0.017
2.112TyrLeu: 2.112 ± 0.046
0.258TyrMet: 0.258 ± 0.014
0.452TyrAsn: 0.452 ± 0.021
1.032TyrPro: 1.032 ± 0.031
0.566TyrGln: 0.566 ± 0.023
1.717TyrArg: 1.717 ± 0.039
1.076TyrSer: 1.076 ± 0.032
1.089TyrThr: 1.089 ± 0.035
1.625TyrVal: 1.625 ± 0.045
0.327TyrTrp: 0.327 ± 0.019
0.456TyrTyr: 0.456 ± 0.018
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 3412 proteins (1117582 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