Amino acid dipepetide frequency for Lactobacillus xujianguonis

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
6.587AlaAla: 6.587 ± 0.122
0.543AlaCys: 0.543 ± 0.034
4.447AlaAsp: 4.447 ± 0.094
4.2AlaGlu: 4.2 ± 0.088
3.049AlaPhe: 3.049 ± 0.086
5.449AlaGly: 5.449 ± 0.111
1.568AlaHis: 1.568 ± 0.053
5.677AlaIle: 5.677 ± 0.111
6.668AlaLys: 6.668 ± 0.119
7.049AlaLeu: 7.049 ± 0.132
2.082AlaMet: 2.082 ± 0.061
3.741AlaAsn: 3.741 ± 0.08
2.141AlaPro: 2.141 ± 0.06
3.242AlaGln: 3.242 ± 0.085
2.741AlaArg: 2.741 ± 0.068
4.103AlaSer: 4.103 ± 0.075
4.208AlaThr: 4.208 ± 0.09
5.189AlaVal: 5.189 ± 0.104
0.715AlaTrp: 0.715 ± 0.039
2.527AlaTyr: 2.527 ± 0.066
0.0AlaXaa: 0.0 ± 0.0
Cys
0.352CysAla: 0.352 ± 0.027
0.062CysCys: 0.062 ± 0.011
0.375CysAsp: 0.375 ± 0.027
0.269CysGlu: 0.269 ± 0.023
0.297CysPhe: 0.297 ± 0.023
0.54CysGly: 0.54 ± 0.031
0.19CysHis: 0.19 ± 0.022
0.339CysIle: 0.339 ± 0.025
0.258CysLys: 0.258 ± 0.022
0.6CysLeu: 0.6 ± 0.035
0.149CysMet: 0.149 ± 0.014
0.198CysAsn: 0.198 ± 0.017
0.248CysPro: 0.248 ± 0.024
0.259CysGln: 0.259 ± 0.023
0.222CysArg: 0.222 ± 0.02
0.37CysSer: 0.37 ± 0.027
0.227CysThr: 0.227 ± 0.019
0.334CysVal: 0.334 ± 0.024
0.06CysTrp: 0.06 ± 0.011
0.229CysTyr: 0.229 ± 0.019
0.0CysXaa: 0.0 ± 0.0
Asp
3.999AspAla: 3.999 ± 0.081
0.313AspCys: 0.313 ± 0.026
3.693AspAsp: 3.693 ± 0.105
4.421AspGlu: 4.421 ± 0.085
2.848AspPhe: 2.848 ± 0.076
3.9AspGly: 3.9 ± 0.098
1.575AspHis: 1.575 ± 0.052
3.525AspIle: 3.525 ± 0.074
4.448AspLys: 4.448 ± 0.1
6.128AspLeu: 6.128 ± 0.12
1.416AspMet: 1.416 ± 0.052
2.807AspAsn: 2.807 ± 0.082
2.694AspPro: 2.694 ± 0.079
3.251AspGln: 3.251 ± 0.072
2.194AspArg: 2.194 ± 0.061
3.083AspSer: 3.083 ± 0.077
2.731AspThr: 2.731 ± 0.084
3.639AspVal: 3.639 ± 0.093
0.793AspTrp: 0.793 ± 0.044
2.815AspTyr: 2.815 ± 0.07
0.0AspXaa: 0.0 ± 0.0
Glu
4.271GluAla: 4.271 ± 0.093
0.263GluCys: 0.263 ± 0.022
3.37GluAsp: 3.37 ± 0.084
3.699GluGlu: 3.699 ± 0.092
2.123GluPhe: 2.123 ± 0.058
2.932GluGly: 2.932 ± 0.075
1.198GluHis: 1.198 ± 0.04
4.487GluIle: 4.487 ± 0.096
5.306GluLys: 5.306 ± 0.11
5.577GluLeu: 5.577 ± 0.102
1.782GluMet: 1.782 ± 0.054
3.307GluAsn: 3.307 ± 0.085
1.685GluPro: 1.685 ± 0.056
2.569GluGln: 2.569 ± 0.079
2.243GluArg: 2.243 ± 0.07
2.494GluSer: 2.494 ± 0.064
2.904GluThr: 2.904 ± 0.064
4.04GluVal: 4.04 ± 0.083
0.511GluTrp: 0.511 ± 0.031
1.995GluTyr: 1.995 ± 0.059
0.0GluXaa: 0.0 ± 0.0
Phe
3.383PheAla: 3.383 ± 0.084
0.316PheCys: 0.316 ± 0.023
2.823PheAsp: 2.823 ± 0.061
2.144PheGlu: 2.144 ± 0.07
2.126PhePhe: 2.126 ± 0.08
2.964PheGly: 2.964 ± 0.086
0.871PheHis: 0.871 ± 0.031
3.067PheIle: 3.067 ± 0.09
3.167PheLys: 3.167 ± 0.077
4.033PheLeu: 4.033 ± 0.106
1.106PheMet: 1.106 ± 0.045
2.515PheAsn: 2.515 ± 0.07
1.378PhePro: 1.378 ± 0.049
1.138PheGln: 1.138 ± 0.045
1.318PheArg: 1.318 ± 0.05
2.828PheSer: 2.828 ± 0.074
2.603PheThr: 2.603 ± 0.074
2.96PheVal: 2.96 ± 0.075
0.597PheTrp: 0.597 ± 0.031
1.729PheTyr: 1.729 ± 0.06
0.0PheXaa: 0.0 ± 0.0
Gly
4.372GlyAla: 4.372 ± 0.114
0.341GlyCys: 0.341 ± 0.027
3.373GlyAsp: 3.373 ± 0.082
3.461GlyGlu: 3.461 ± 0.084
2.922GlyPhe: 2.922 ± 0.074
3.973GlyGly: 3.973 ± 0.119
1.594GlyHis: 1.594 ± 0.053
5.259GlyIle: 5.259 ± 0.092
5.703GlyLys: 5.703 ± 0.109
6.042GlyLeu: 6.042 ± 0.137
1.841GlyMet: 1.841 ± 0.056
3.086GlyAsn: 3.086 ± 0.08
1.523GlyPro: 1.523 ± 0.053
2.937GlyGln: 2.937 ± 0.071
2.486GlyArg: 2.486 ± 0.076
3.767GlySer: 3.767 ± 0.083
3.705GlyThr: 3.705 ± 0.095
4.341GlyVal: 4.341 ± 0.099
0.746GlyTrp: 0.746 ± 0.039
2.76GlyTyr: 2.76 ± 0.071
0.0GlyXaa: 0.0 ± 0.0
His
1.442HisAla: 1.442 ± 0.053
0.141HisCys: 0.141 ± 0.014
1.374HisAsp: 1.374 ± 0.045
1.299HisGlu: 1.299 ± 0.042
1.112HisPhe: 1.112 ± 0.045
1.602HisGly: 1.602 ± 0.055
0.752HisHis: 0.752 ± 0.041
1.325HisIle: 1.325 ± 0.044
1.297HisLys: 1.297 ± 0.048
2.09HisLeu: 2.09 ± 0.067
0.501HisMet: 0.501 ± 0.028
1.051HisAsn: 1.051 ± 0.042
1.074HisPro: 1.074 ± 0.045
0.991HisGln: 0.991 ± 0.036
0.963HisArg: 0.963 ± 0.044
1.135HisSer: 1.135 ± 0.051
1.036HisThr: 1.036 ± 0.04
1.416HisVal: 1.416 ± 0.051
0.297HisTrp: 0.297 ± 0.025
1.072HisTyr: 1.072 ± 0.043
0.0HisXaa: 0.0 ± 0.0
Ile
5.853IleAla: 5.853 ± 0.11
0.493IleCys: 0.493 ± 0.03
4.563IleAsp: 4.563 ± 0.098
3.537IleGlu: 3.537 ± 0.074
3.209IlePhe: 3.209 ± 0.087
4.795IleGly: 4.795 ± 0.108
1.221IleHis: 1.221 ± 0.042
5.189IleIle: 5.189 ± 0.126
5.53IleLys: 5.53 ± 0.093
6.498IleLeu: 6.498 ± 0.148
1.708IleMet: 1.708 ± 0.064
4.014IleAsn: 4.014 ± 0.08
2.937IlePro: 2.937 ± 0.072
2.217IleGln: 2.217 ± 0.064
2.46IleArg: 2.46 ± 0.072
4.476IleSer: 4.476 ± 0.097
4.318IleThr: 4.318 ± 0.091
4.875IleVal: 4.875 ± 0.106
0.751IleTrp: 0.751 ± 0.042
2.543IleTyr: 2.543 ± 0.062
0.0IleXaa: 0.0 ± 0.0
Lys
5.611LysAla: 5.611 ± 0.114
0.23LysCys: 0.23 ± 0.02
5.037LysAsp: 5.037 ± 0.105
5.102LysGlu: 5.102 ± 0.104
2.716LysPhe: 2.716 ± 0.077
4.01LysGly: 4.01 ± 0.099
1.601LysHis: 1.601 ± 0.052
5.741LysIle: 5.741 ± 0.109
7.429LysLys: 7.429 ± 0.147
6.981LysLeu: 6.981 ± 0.105
2.638LysMet: 2.638 ± 0.07
4.75LysAsn: 4.75 ± 0.112
2.651LysPro: 2.651 ± 0.064
3.869LysGln: 3.869 ± 0.083
3.446LysArg: 3.446 ± 0.085
4.064LysSer: 4.064 ± 0.099
4.362LysThr: 4.362 ± 0.091
5.157LysVal: 5.157 ± 0.092
0.812LysTrp: 0.812 ± 0.04
3.389LysTyr: 3.389 ± 0.079
0.0LysXaa: 0.0 ± 0.0
Leu
8.358LeuAla: 8.358 ± 0.142
0.535LeuCys: 0.535 ± 0.033
5.313LeuAsp: 5.313 ± 0.096
4.455LeuGlu: 4.455 ± 0.104
4.002LeuPhe: 4.002 ± 0.102
6.091LeuGly: 6.091 ± 0.119
1.892LeuHis: 1.892 ± 0.049
7.035LeuIle: 7.035 ± 0.151
7.216LeuLys: 7.216 ± 0.104
8.54LeuLeu: 8.54 ± 0.178
2.291LeuMet: 2.291 ± 0.062
5.006LeuAsn: 5.006 ± 0.106
3.869LeuPro: 3.869 ± 0.083
3.521LeuGln: 3.521 ± 0.087
3.506LeuArg: 3.506 ± 0.089
5.828LeuSer: 5.828 ± 0.115
6.393LeuThr: 6.393 ± 0.108
6.466LeuVal: 6.466 ± 0.128
0.929LeuTrp: 0.929 ± 0.037
2.878LeuTyr: 2.878 ± 0.077
0.0LeuXaa: 0.0 ± 0.0
Met
2.243MetAla: 2.243 ± 0.069
0.136MetCys: 0.136 ± 0.015
1.378MetAsp: 1.378 ± 0.047
1.158MetGlu: 1.158 ± 0.047
0.963MetPhe: 0.963 ± 0.041
1.575MetGly: 1.575 ± 0.053
0.579MetHis: 0.579 ± 0.035
1.967MetIle: 1.967 ± 0.059
2.287MetLys: 2.287 ± 0.064
2.265MetLeu: 2.265 ± 0.067
0.825MetMet: 0.825 ± 0.037
1.349MetAsn: 1.349 ± 0.053
1.197MetPro: 1.197 ± 0.043
1.179MetGln: 1.179 ± 0.042
1.069MetArg: 1.069 ± 0.043
1.562MetSer: 1.562 ± 0.047
1.834MetThr: 1.834 ± 0.055
1.708MetVal: 1.708 ± 0.06
0.24MetTrp: 0.24 ± 0.023
0.649MetTyr: 0.649 ± 0.032
0.0MetXaa: 0.0 ± 0.0
Asn
3.485AsnAla: 3.485 ± 0.075
0.326AsnCys: 0.326 ± 0.022
3.159AsnAsp: 3.159 ± 0.074
2.984AsnGlu: 2.984 ± 0.07
2.517AsnPhe: 2.517 ± 0.07
3.881AsnGly: 3.881 ± 0.08
1.296AsnHis: 1.296 ± 0.046
3.08AsnIle: 3.08 ± 0.076
3.866AsnLys: 3.866 ± 0.092
5.097AsnLeu: 5.097 ± 0.109
1.286AsnMet: 1.286 ± 0.05
2.984AsnAsn: 2.984 ± 0.085
2.368AsnPro: 2.368 ± 0.075
2.452AsnGln: 2.452 ± 0.067
1.975AsnArg: 1.975 ± 0.059
3.153AsnSer: 3.153 ± 0.078
2.664AsnThr: 2.664 ± 0.078
3.251AsnVal: 3.251 ± 0.085
0.705AsnTrp: 0.705 ± 0.035
2.413AsnTyr: 2.413 ± 0.07
0.0AsnXaa: 0.0 ± 0.0
Pro
2.783ProAla: 2.783 ± 0.077
0.131ProCys: 0.131 ± 0.015
2.499ProAsp: 2.499 ± 0.074
2.917ProGlu: 2.917 ± 0.074
1.696ProPhe: 1.696 ± 0.054
2.162ProGly: 2.162 ± 0.062
0.774ProHis: 0.774 ± 0.038
2.408ProIle: 2.408 ± 0.059
2.859ProLys: 2.859 ± 0.08
3.029ProLeu: 3.029 ± 0.084
0.803ProMet: 0.803 ± 0.032
1.954ProAsn: 1.954 ± 0.066
0.572ProPro: 0.572 ± 0.032
1.455ProGln: 1.455 ± 0.055
1.135ProArg: 1.135 ± 0.038
2.077ProSer: 2.077 ± 0.063
2.246ProThr: 2.246 ± 0.07
2.814ProVal: 2.814 ± 0.072
0.396ProTrp: 0.396 ± 0.025
1.378ProTyr: 1.378 ± 0.049
0.0ProXaa: 0.0 ± 0.0
Gln
3.577GlnAla: 3.577 ± 0.084
0.126GlnCys: 0.126 ± 0.015
2.421GlnAsp: 2.421 ± 0.066
2.711GlnGlu: 2.711 ± 0.076
1.523GlnPhe: 1.523 ± 0.05
2.275GlnGly: 2.275 ± 0.064
0.814GlnHis: 0.814 ± 0.041
3.329GlnIle: 3.329 ± 0.08
3.717GlnLys: 3.717 ± 0.081
4.25GlnLeu: 4.25 ± 0.105
1.216GlnMet: 1.216 ± 0.046
2.269GlnAsn: 2.269 ± 0.07
1.343GlnPro: 1.343 ± 0.046
1.8GlnGln: 1.8 ± 0.068
1.659GlnArg: 1.659 ± 0.057
1.987GlnSer: 1.987 ± 0.069
2.428GlnThr: 2.428 ± 0.07
3.157GlnVal: 3.157 ± 0.076
0.366GlnTrp: 0.366 ± 0.028
1.544GlnTyr: 1.544 ± 0.057
0.0GlnXaa: 0.0 ± 0.0
Arg
2.476ArgAla: 2.476 ± 0.061
0.217ArgCys: 0.217 ± 0.019
2.134ArgAsp: 2.134 ± 0.063
2.366ArgGlu: 2.366 ± 0.079
1.648ArgPhe: 1.648 ± 0.051
2.137ArgGly: 2.137 ± 0.064
1.014ArgHis: 1.014 ± 0.039
2.83ArgIle: 2.83 ± 0.064
3.167ArgLys: 3.167 ± 0.074
3.564ArgLeu: 3.564 ± 0.075
1.059ArgMet: 1.059 ± 0.046
1.92ArgAsn: 1.92 ± 0.054
1.315ArgPro: 1.315 ± 0.042
1.805ArgGln: 1.805 ± 0.062
2.009ArgArg: 2.009 ± 0.063
2.001ArgSer: 2.001 ± 0.062
1.839ArgThr: 1.839 ± 0.059
2.6ArgVal: 2.6 ± 0.076
0.375ArgTrp: 0.375 ± 0.02
1.678ArgTyr: 1.678 ± 0.054
0.0ArgXaa: 0.0 ± 0.0
Ser
3.981SerAla: 3.981 ± 0.081
0.284SerCys: 0.284 ± 0.02
3.598SerAsp: 3.598 ± 0.082
3.118SerGlu: 3.118 ± 0.073
2.752SerPhe: 2.752 ± 0.08
4.148SerGly: 4.148 ± 0.091
1.19SerHis: 1.19 ± 0.047
3.603SerIle: 3.603 ± 0.082
4.148SerLys: 4.148 ± 0.093
5.624SerLeu: 5.624 ± 0.089
1.333SerMet: 1.333 ± 0.048
3.078SerAsn: 3.078 ± 0.087
1.852SerPro: 1.852 ± 0.056
2.423SerGln: 2.423 ± 0.073
2.171SerArg: 2.171 ± 0.054
3.743SerSer: 3.743 ± 0.095
3.088SerThr: 3.088 ± 0.077
3.696SerVal: 3.696 ± 0.082
0.785SerTrp: 0.785 ± 0.039
2.389SerTyr: 2.389 ± 0.07
0.0SerXaa: 0.0 ± 0.0
Thr
4.503ThrAla: 4.503 ± 0.089
0.302ThrCys: 0.302 ± 0.028
3.41ThrAsp: 3.41 ± 0.09
2.937ThrGlu: 2.937 ± 0.077
2.308ThrPhe: 2.308 ± 0.078
4.132ThrGly: 4.132 ± 0.099
1.082ThrHis: 1.082 ± 0.041
4.369ThrIle: 4.369 ± 0.096
4.315ThrLys: 4.315 ± 0.109
4.996ThrLeu: 4.996 ± 0.098
1.32ThrMet: 1.32 ± 0.05
2.938ThrAsn: 2.938 ± 0.083
2.715ThrPro: 2.715 ± 0.084
2.089ThrGln: 2.089 ± 0.064
1.931ThrArg: 1.931 ± 0.058
3.35ThrSer: 3.35 ± 0.088
3.561ThrThr: 3.561 ± 0.102
4.017ThrVal: 4.017 ± 0.095
0.667ThrTrp: 0.667 ± 0.031
2.037ThrTyr: 2.037 ± 0.067
0.0ThrXaa: 0.0 ± 0.0
Val
5.517ValAla: 5.517 ± 0.102
0.418ValCys: 0.418 ± 0.026
4.186ValAsp: 4.186 ± 0.089
3.508ValGlu: 3.508 ± 0.077
2.705ValPhe: 2.705 ± 0.082
4.474ValGly: 4.474 ± 0.105
1.27ValHis: 1.27 ± 0.049
5.094ValIle: 5.094 ± 0.108
5.559ValLys: 5.559 ± 0.098
6.086ValLeu: 6.086 ± 0.116
1.698ValMet: 1.698 ± 0.057
3.504ValAsn: 3.504 ± 0.084
2.669ValPro: 2.669 ± 0.072
2.403ValGln: 2.403 ± 0.066
2.345ValArg: 2.345 ± 0.073
4.127ValSer: 4.127 ± 0.09
4.265ValThr: 4.265 ± 0.1
5.077ValVal: 5.077 ± 0.106
0.65ValTrp: 0.65 ± 0.033
2.334ValTyr: 2.334 ± 0.056
0.0ValXaa: 0.0 ± 0.0
Trp
0.684TrpAla: 0.684 ± 0.035
0.109TrpCys: 0.109 ± 0.014
0.595TrpAsp: 0.595 ± 0.034
0.435TrpGlu: 0.435 ± 0.028
0.538TrpPhe: 0.538 ± 0.033
0.725TrpGly: 0.725 ± 0.039
0.344TrpHis: 0.344 ± 0.024
0.712TrpIle: 0.712 ± 0.042
0.645TrpLys: 0.645 ± 0.033
1.301TrpLeu: 1.301 ± 0.056
0.285TrpMet: 0.285 ± 0.023
0.602TrpAsn: 0.602 ± 0.034
0.334TrpPro: 0.334 ± 0.025
0.759TrpGln: 0.759 ± 0.039
0.436TrpArg: 0.436 ± 0.032
0.621TrpSer: 0.621 ± 0.033
0.624TrpThr: 0.624 ± 0.029
0.673TrpVal: 0.673 ± 0.031
0.151TrpTrp: 0.151 ± 0.016
0.474TrpTyr: 0.474 ± 0.03
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.449TyrAla: 2.449 ± 0.06
0.29TyrCys: 0.29 ± 0.025
2.525TyrAsp: 2.525 ± 0.07
2.035TyrGlu: 2.035 ± 0.065
2.012TyrPhe: 2.012 ± 0.062
2.468TyrGly: 2.468 ± 0.07
1.147TyrHis: 1.147 ± 0.047
2.15TyrIle: 2.15 ± 0.066
2.011TyrLys: 2.011 ± 0.07
4.372TyrLeu: 4.372 ± 0.109
0.821TyrMet: 0.821 ± 0.039
1.868TyrAsn: 1.868 ± 0.055
1.524TyrPro: 1.524 ± 0.052
2.155TyrGln: 2.155 ± 0.068
1.844TyrArg: 1.844 ± 0.055
2.236TyrSer: 2.236 ± 0.06
1.941TyrThr: 1.941 ± 0.066
2.481TyrVal: 2.481 ± 0.071
0.501TyrTrp: 0.501 ± 0.03
1.682TyrTyr: 1.682 ± 0.062
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 2074 proteins (616652 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