Amino acid dipepetide frequency for Lactobacillus cacaonum DSM 21116

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
5.256AlaAla: 5.256 ± 0.143
0.403AlaCys: 0.403 ± 0.028
3.645AlaAsp: 3.645 ± 0.091
3.811AlaGlu: 3.811 ± 0.092
2.967AlaPhe: 2.967 ± 0.07
4.812AlaGly: 4.812 ± 0.11
1.217AlaHis: 1.217 ± 0.05
6.052AlaIle: 6.052 ± 0.121
5.523AlaLys: 5.523 ± 0.114
6.71AlaLeu: 6.71 ± 0.113
1.739AlaMet: 1.739 ± 0.057
3.453AlaAsn: 3.453 ± 0.09
1.829AlaPro: 1.829 ± 0.06
2.879AlaGln: 2.879 ± 0.08
2.578AlaArg: 2.578 ± 0.075
4.139AlaSer: 4.139 ± 0.099
4.426AlaThr: 4.426 ± 0.097
4.828AlaVal: 4.828 ± 0.108
0.568AlaTrp: 0.568 ± 0.035
2.241AlaTyr: 2.241 ± 0.066
0.0AlaXaa: 0.0 ± 0.0
Cys
0.421CysAla: 0.421 ± 0.03
0.063CysCys: 0.063 ± 0.01
0.299CysAsp: 0.299 ± 0.022
0.312CysGlu: 0.312 ± 0.024
0.287CysPhe: 0.287 ± 0.021
0.48CysGly: 0.48 ± 0.031
0.122CysHis: 0.122 ± 0.015
0.4CysIle: 0.4 ± 0.027
0.278CysLys: 0.278 ± 0.022
0.538CysLeu: 0.538 ± 0.032
0.108CysMet: 0.108 ± 0.013
0.24CysAsn: 0.24 ± 0.022
0.24CysPro: 0.24 ± 0.025
0.215CysGln: 0.215 ± 0.018
0.192CysArg: 0.192 ± 0.018
0.402CysSer: 0.402 ± 0.026
0.29CysThr: 0.29 ± 0.025
0.359CysVal: 0.359 ± 0.029
0.065CysTrp: 0.065 ± 0.012
0.228CysTyr: 0.228 ± 0.021
0.0CysXaa: 0.0 ± 0.0
Asp
3.463AspAla: 3.463 ± 0.07
0.296AspCys: 0.296 ± 0.026
2.705AspAsp: 2.705 ± 0.08
4.353AspGlu: 4.353 ± 0.102
2.92AspPhe: 2.92 ± 0.081
3.447AspGly: 3.447 ± 0.098
0.76AspHis: 0.76 ± 0.035
4.292AspIle: 4.292 ± 0.086
3.567AspLys: 3.567 ± 0.085
5.098AspLeu: 5.098 ± 0.09
1.327AspMet: 1.327 ± 0.046
2.798AspAsn: 2.798 ± 0.069
1.547AspPro: 1.547 ± 0.058
1.601AspGln: 1.601 ± 0.05
1.748AspArg: 1.748 ± 0.059
3.327AspSer: 3.327 ± 0.088
2.562AspThr: 2.562 ± 0.069
3.903AspVal: 3.903 ± 0.096
0.531AspTrp: 0.531 ± 0.029
2.341AspTyr: 2.341 ± 0.065
0.0AspXaa: 0.0 ± 0.0
Glu
4.001GluAla: 4.001 ± 0.098
0.294GluCys: 0.294 ± 0.024
3.087GluAsp: 3.087 ± 0.07
4.406GluGlu: 4.406 ± 0.105
2.573GluPhe: 2.573 ± 0.074
2.953GluGly: 2.953 ± 0.079
1.117GluHis: 1.117 ± 0.05
5.608GluIle: 5.608 ± 0.099
6.529GluLys: 6.529 ± 0.142
7.043GluLeu: 7.043 ± 0.137
1.791GluMet: 1.791 ± 0.057
3.958GluAsn: 3.958 ± 0.091
1.5GluPro: 1.5 ± 0.053
2.788GluGln: 2.788 ± 0.077
2.578GluArg: 2.578 ± 0.068
3.334GluSer: 3.334 ± 0.076
3.3GluThr: 3.3 ± 0.059
4.302GluVal: 4.302 ± 0.095
0.527GluTrp: 0.527 ± 0.029
2.232GluTyr: 2.232 ± 0.065
0.0GluXaa: 0.0 ± 0.0
Phe
3.214PheAla: 3.214 ± 0.085
0.33PheCys: 0.33 ± 0.026
2.746PheAsp: 2.746 ± 0.065
3.04PheGlu: 3.04 ± 0.082
2.669PhePhe: 2.669 ± 0.09
3.428PheGly: 3.428 ± 0.083
0.724PheHis: 0.724 ± 0.035
3.673PheIle: 3.673 ± 0.096
3.006PheLys: 3.006 ± 0.084
4.53PheLeu: 4.53 ± 0.105
1.124PheMet: 1.124 ± 0.044
2.313PheAsn: 2.313 ± 0.062
1.533PhePro: 1.533 ± 0.052
1.242PheGln: 1.242 ± 0.047
1.405PheArg: 1.405 ± 0.047
3.623PheSer: 3.623 ± 0.091
2.304PheThr: 2.304 ± 0.069
3.313PheVal: 3.313 ± 0.073
0.531PheTrp: 0.531 ± 0.037
1.735PheTyr: 1.735 ± 0.064
0.0PheXaa: 0.0 ± 0.0
Gly
4.534GlyAla: 4.534 ± 0.113
0.418GlyCys: 0.418 ± 0.03
3.067GlyAsp: 3.067 ± 0.079
3.584GlyGlu: 3.584 ± 0.08
3.162GlyPhe: 3.162 ± 0.079
4.172GlyGly: 4.172 ± 0.108
1.196GlyHis: 1.196 ± 0.05
6.429GlyIle: 6.429 ± 0.116
5.061GlyLys: 5.061 ± 0.083
6.126GlyLeu: 6.126 ± 0.113
1.875GlyMet: 1.875 ± 0.064
3.223GlyAsn: 3.223 ± 0.08
1.404GlyPro: 1.404 ± 0.052
2.241GlyGln: 2.241 ± 0.066
2.417GlyArg: 2.417 ± 0.081
3.944GlySer: 3.944 ± 0.087
4.175GlyThr: 4.175 ± 0.093
4.579GlyVal: 4.579 ± 0.104
0.606GlyTrp: 0.606 ± 0.031
2.72GlyTyr: 2.72 ± 0.068
0.0GlyXaa: 0.0 ± 0.0
His
1.059HisAla: 1.059 ± 0.047
0.125HisCys: 0.125 ± 0.015
0.943HisAsp: 0.943 ± 0.043
1.085HisGlu: 1.085 ± 0.043
1.011HisPhe: 1.011 ± 0.043
1.269HisGly: 1.269 ± 0.053
0.484HisHis: 0.484 ± 0.031
1.242HisIle: 1.242 ± 0.049
1.013HisLys: 1.013 ± 0.043
1.85HisLeu: 1.85 ± 0.055
0.371HisMet: 0.371 ± 0.029
0.803HisAsn: 0.803 ± 0.04
0.835HisPro: 0.835 ± 0.043
0.778HisGln: 0.778 ± 0.04
0.701HisArg: 0.701 ± 0.042
0.988HisSer: 0.988 ± 0.048
0.807HisThr: 0.807 ± 0.036
1.137HisVal: 1.137 ± 0.048
0.149HisTrp: 0.149 ± 0.017
0.748HisTyr: 0.748 ± 0.045
0.0HisXaa: 0.0 ± 0.0
Ile
6.604IleAla: 6.604 ± 0.109
0.583IleCys: 0.583 ± 0.029
4.831IleAsp: 4.831 ± 0.098
5.247IleGlu: 5.247 ± 0.098
3.897IlePhe: 3.897 ± 0.107
5.898IleGly: 5.898 ± 0.124
1.196IleHis: 1.196 ± 0.05
6.898IleIle: 6.898 ± 0.152
5.914IleLys: 5.914 ± 0.105
7.913IleLeu: 7.913 ± 0.146
1.922IleMet: 1.922 ± 0.057
4.258IleAsn: 4.258 ± 0.088
3.089IlePro: 3.089 ± 0.071
2.671IleGln: 2.671 ± 0.064
2.91IleArg: 2.91 ± 0.071
5.832IleSer: 5.832 ± 0.114
4.518IleThr: 4.518 ± 0.106
5.939IleVal: 5.939 ± 0.117
0.629IleTrp: 0.629 ± 0.033
2.653IleTyr: 2.653 ± 0.072
0.0IleXaa: 0.0 ± 0.0
Lys
4.528LysAla: 4.528 ± 0.098
0.244LysCys: 0.244 ± 0.02
3.743LysAsp: 3.743 ± 0.087
5.726LysGlu: 5.726 ± 0.123
2.711LysPhe: 2.711 ± 0.064
3.811LysGly: 3.811 ± 0.074
1.115LysHis: 1.115 ± 0.045
7.146LysIle: 7.146 ± 0.119
8.35LysLys: 8.35 ± 0.141
7.113LysLeu: 7.113 ± 0.108
2.614LysMet: 2.614 ± 0.069
5.193LysAsn: 5.193 ± 0.1
1.829LysPro: 1.829 ± 0.052
3.342LysGln: 3.342 ± 0.097
3.128LysArg: 3.128 ± 0.071
4.304LysSer: 4.304 ± 0.093
4.105LysThr: 4.105 ± 0.1
5.079LysVal: 5.079 ± 0.102
0.626LysTrp: 0.626 ± 0.037
2.915LysTyr: 2.915 ± 0.076
0.0LysXaa: 0.0 ± 0.0
Leu
7.472LeuAla: 7.472 ± 0.129
0.565LeuCys: 0.565 ± 0.033
5.288LeuAsp: 5.288 ± 0.107
6.192LeuGlu: 6.192 ± 0.126
4.466LeuPhe: 4.466 ± 0.137
6.626LeuGly: 6.626 ± 0.122
1.647LeuHis: 1.647 ± 0.054
7.784LeuIle: 7.784 ± 0.153
7.346LeuLys: 7.346 ± 0.121
9.926LeuLeu: 9.926 ± 0.184
2.429LeuMet: 2.429 ± 0.069
5.321LeuAsn: 5.321 ± 0.092
3.655LeuPro: 3.655 ± 0.077
3.456LeuGln: 3.456 ± 0.075
3.576LeuArg: 3.576 ± 0.089
7.083LeuSer: 7.083 ± 0.106
5.812LeuThr: 5.812 ± 0.118
6.568LeuVal: 6.568 ± 0.121
0.774LeuTrp: 0.774 ± 0.04
2.793LeuTyr: 2.793 ± 0.075
0.002LeuXaa: 0.002 ± 0.002
Met
1.861MetAla: 1.861 ± 0.065
0.143MetCys: 0.143 ± 0.017
1.25MetAsp: 1.25 ± 0.04
1.371MetGlu: 1.371 ± 0.054
0.929MetPhe: 0.929 ± 0.036
1.845MetGly: 1.845 ± 0.059
0.436MetHis: 0.436 ± 0.025
2.239MetIle: 2.239 ± 0.069
2.035MetLys: 2.035 ± 0.064
2.418MetLeu: 2.418 ± 0.064
0.733MetMet: 0.733 ± 0.044
1.608MetAsn: 1.608 ± 0.051
0.893MetPro: 0.893 ± 0.044
1.038MetGln: 1.038 ± 0.045
0.966MetArg: 0.966 ± 0.044
1.653MetSer: 1.653 ± 0.054
1.587MetThr: 1.587 ± 0.049
1.685MetVal: 1.685 ± 0.054
0.142MetTrp: 0.142 ± 0.016
0.703MetTyr: 0.703 ± 0.036
0.0MetXaa: 0.0 ± 0.0
Asn
3.318AsnAla: 3.318 ± 0.076
0.298AsnCys: 0.298 ± 0.025
2.772AsnAsp: 2.772 ± 0.064
3.817AsnGlu: 3.817 ± 0.095
2.623AsnPhe: 2.623 ± 0.075
3.594AsnGly: 3.594 ± 0.077
1.146AsnHis: 1.146 ± 0.047
4.195AsnIle: 4.195 ± 0.083
3.965AsnLys: 3.965 ± 0.1
5.272AsnLeu: 5.272 ± 0.101
1.289AsnMet: 1.289 ± 0.049
3.144AsnAsn: 3.144 ± 0.088
2.097AsnPro: 2.097 ± 0.068
2.273AsnGln: 2.273 ± 0.059
1.854AsnArg: 1.854 ± 0.055
3.485AsnSer: 3.485 ± 0.088
2.707AsnThr: 2.707 ± 0.07
3.535AsnVal: 3.535 ± 0.081
0.645AsnTrp: 0.645 ± 0.034
2.271AsnTyr: 2.271 ± 0.07
0.0AsnXaa: 0.0 ± 0.0
Pro
2.024ProAla: 2.024 ± 0.058
0.149ProCys: 0.149 ± 0.015
1.734ProAsp: 1.734 ± 0.06
2.431ProGlu: 2.431 ± 0.065
1.671ProPhe: 1.671 ± 0.052
1.864ProGly: 1.864 ± 0.057
0.563ProHis: 0.563 ± 0.033
2.655ProIle: 2.655 ± 0.069
2.166ProLys: 2.166 ± 0.064
2.987ProLeu: 2.987 ± 0.08
0.665ProMet: 0.665 ± 0.036
1.769ProAsn: 1.769 ± 0.062
0.575ProPro: 0.575 ± 0.033
1.147ProGln: 1.147 ± 0.041
0.957ProArg: 0.957 ± 0.043
1.929ProSer: 1.929 ± 0.057
2.069ProThr: 2.069 ± 0.058
2.291ProVal: 2.291 ± 0.075
0.247ProTrp: 0.247 ± 0.021
1.189ProTyr: 1.189 ± 0.055
0.0ProXaa: 0.0 ± 0.0
Gln
2.538GlnAla: 2.538 ± 0.071
0.129GlnCys: 0.129 ± 0.017
1.805GlnAsp: 1.805 ± 0.059
2.329GlnGlu: 2.329 ± 0.068
1.416GlnPhe: 1.416 ± 0.05
1.988GlnGly: 1.988 ± 0.063
0.699GlnHis: 0.699 ± 0.041
3.189GlnIle: 3.189 ± 0.069
3.666GlnLys: 3.666 ± 0.104
4.075GlnLeu: 4.075 ± 0.098
1.061GlnMet: 1.061 ± 0.043
2.261GlnAsn: 2.261 ± 0.065
0.959GlnPro: 0.959 ± 0.036
1.888GlnGln: 1.888 ± 0.067
1.579GlnArg: 1.579 ± 0.048
2.23GlnSer: 2.23 ± 0.066
2.155GlnThr: 2.155 ± 0.069
2.608GlnVal: 2.608 ± 0.067
0.323GlnTrp: 0.323 ± 0.029
1.239GlnTyr: 1.239 ± 0.052
0.0GlnXaa: 0.0 ± 0.0
Arg
2.365ArgAla: 2.365 ± 0.066
0.186ArgCys: 0.186 ± 0.019
1.9ArgAsp: 1.9 ± 0.058
2.521ArgGlu: 2.521 ± 0.081
1.691ArgPhe: 1.691 ± 0.055
2.045ArgGly: 2.045 ± 0.066
0.66ArgHis: 0.66 ± 0.037
2.996ArgIle: 2.996 ± 0.082
3.161ArgLys: 3.161 ± 0.085
3.505ArgLeu: 3.505 ± 0.09
1.018ArgMet: 1.018 ± 0.042
1.999ArgAsn: 1.999 ± 0.061
1.099ArgPro: 1.099 ± 0.049
1.552ArgGln: 1.552 ± 0.054
1.642ArgArg: 1.642 ± 0.067
1.904ArgSer: 1.904 ± 0.055
1.888ArgThr: 1.888 ± 0.059
2.535ArgVal: 2.535 ± 0.075
0.262ArgTrp: 0.262 ± 0.026
1.472ArgTyr: 1.472 ± 0.053
0.0ArgXaa: 0.0 ± 0.0
Ser
4.265SerAla: 4.265 ± 0.109
0.264SerCys: 0.264 ± 0.021
3.533SerAsp: 3.533 ± 0.094
4.03SerGlu: 4.03 ± 0.087
3.451SerPhe: 3.451 ± 0.097
4.679SerGly: 4.679 ± 0.109
1.131SerHis: 1.131 ± 0.047
4.912SerIle: 4.912 ± 0.108
4.7SerLys: 4.7 ± 0.105
6.671SerLeu: 6.671 ± 0.117
1.515SerMet: 1.515 ± 0.05
3.356SerAsn: 3.356 ± 0.091
1.782SerPro: 1.782 ± 0.057
2.594SerGln: 2.594 ± 0.082
2.128SerArg: 2.128 ± 0.064
4.996SerSer: 4.996 ± 0.165
3.607SerThr: 3.607 ± 0.097
4.206SerVal: 4.206 ± 0.095
0.636SerTrp: 0.636 ± 0.037
2.356SerTyr: 2.356 ± 0.062
0.0SerXaa: 0.0 ± 0.0
Thr
3.84ThrAla: 3.84 ± 0.082
0.255ThrCys: 0.255 ± 0.024
3.019ThrAsp: 3.019 ± 0.087
3.049ThrGlu: 3.049 ± 0.073
2.682ThrPhe: 2.682 ± 0.074
4.157ThrGly: 4.157 ± 0.088
1.052ThrHis: 1.052 ± 0.044
4.605ThrIle: 4.605 ± 0.094
4.114ThrLys: 4.114 ± 0.099
5.464ThrLeu: 5.464 ± 0.112
1.241ThrMet: 1.241 ± 0.046
2.987ThrAsn: 2.987 ± 0.089
2.239ThrPro: 2.239 ± 0.066
2.019ThrGln: 2.019 ± 0.07
1.852ThrArg: 1.852 ± 0.054
3.908ThrSer: 3.908 ± 0.1
3.591ThrThr: 3.591 ± 0.098
4.179ThrVal: 4.179 ± 0.081
0.484ThrTrp: 0.484 ± 0.032
1.834ThrTyr: 1.834 ± 0.059
0.004ThrXaa: 0.004 ± 0.003
Val
5.658ValAla: 5.658 ± 0.099
0.486ValCys: 0.486 ± 0.029
3.838ValAsp: 3.838 ± 0.1
4.059ValGlu: 4.059 ± 0.086
2.922ValPhe: 2.922 ± 0.075
4.846ValGly: 4.846 ± 0.114
1.095ValHis: 1.095 ± 0.045
5.85ValIle: 5.85 ± 0.105
4.758ValLys: 4.758 ± 0.094
6.547ValLeu: 6.547 ± 0.12
1.701ValMet: 1.701 ± 0.053
3.343ValAsn: 3.343 ± 0.08
2.363ValPro: 2.363 ± 0.079
2.121ValGln: 2.121 ± 0.071
2.286ValArg: 2.286 ± 0.06
4.871ValSer: 4.871 ± 0.09
4.34ValThr: 4.34 ± 0.093
5.256ValVal: 5.256 ± 0.106
0.522ValTrp: 0.522 ± 0.034
2.166ValTyr: 2.166 ± 0.062
0.0ValXaa: 0.0 ± 0.0
Trp
0.471TrpAla: 0.471 ± 0.032
0.052TrpCys: 0.052 ± 0.01
0.423TrpAsp: 0.423 ± 0.031
0.473TrpGlu: 0.473 ± 0.028
0.432TrpPhe: 0.432 ± 0.028
0.554TrpGly: 0.554 ± 0.033
0.215TrpHis: 0.215 ± 0.02
0.814TrpIle: 0.814 ± 0.044
0.511TrpLys: 0.511 ± 0.033
1.031TrpLeu: 1.031 ± 0.05
0.256TrpMet: 0.256 ± 0.02
0.556TrpAsn: 0.556 ± 0.031
0.267TrpPro: 0.267 ± 0.023
0.416TrpGln: 0.416 ± 0.027
0.337TrpArg: 0.337 ± 0.023
0.579TrpSer: 0.579 ± 0.036
0.439TrpThr: 0.439 ± 0.029
0.511TrpVal: 0.511 ± 0.027
0.1TrpTrp: 0.1 ± 0.011
0.324TrpTyr: 0.324 ± 0.026
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.182TyrAla: 2.182 ± 0.062
0.256TyrCys: 0.256 ± 0.022
1.958TyrAsp: 1.958 ± 0.058
2.088TyrGlu: 2.088 ± 0.067
2.006TyrPhe: 2.006 ± 0.07
2.461TyrGly: 2.461 ± 0.069
0.823TyrHis: 0.823 ± 0.041
2.424TyrIle: 2.424 ± 0.065
1.958TyrLys: 1.958 ± 0.06
3.965TyrLeu: 3.965 ± 0.093
0.753TyrMet: 0.753 ± 0.037
1.716TyrAsn: 1.716 ± 0.056
1.346TyrPro: 1.346 ± 0.05
1.877TyrGln: 1.877 ± 0.063
1.561TyrArg: 1.561 ± 0.06
2.28TyrSer: 2.28 ± 0.067
1.893TyrThr: 1.893 ± 0.068
2.214TyrVal: 2.214 ± 0.057
0.396TyrTrp: 0.396 ± 0.029
1.454TyrTyr: 1.454 ± 0.057
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
0.002XaaAsn: 0.002 ± 0.002
0.0XaaPro: 0.0 ± 0.0
0.0XaaGln: 0.0 ± 0.0
0.004XaaArg: 0.004 ± 0.003
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
0.016XaaXaa: 0.016 ± 0.01
Statistics based on 1801 proteins (557821 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