Amino acid dipepetide frequency for Peptoniphilus ivorii

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
8.833AlaAla: 8.833 ± 0.198
0.771AlaCys: 0.771 ± 0.041
5.584AlaAsp: 5.584 ± 0.126
7.214AlaGlu: 7.214 ± 0.167
3.759AlaPhe: 3.759 ± 0.103
6.725AlaGly: 6.725 ± 0.143
1.497AlaHis: 1.497 ± 0.061
5.999AlaIle: 5.999 ± 0.128
5.667AlaLys: 5.667 ± 0.201
9.887AlaLeu: 9.887 ± 0.189
2.892AlaMet: 2.892 ± 0.085
2.652AlaAsn: 2.652 ± 0.092
3.173AlaPro: 3.173 ± 0.108
2.489AlaGln: 2.489 ± 0.075
4.854AlaArg: 4.854 ± 0.11
4.236AlaSer: 4.236 ± 0.112
3.836AlaThr: 3.836 ± 0.105
7.085AlaVal: 7.085 ± 0.144
0.565AlaTrp: 0.565 ± 0.033
3.317AlaTyr: 3.317 ± 0.085
0.0AlaXaa: 0.0 ± 0.0
Cys
0.783CysAla: 0.783 ± 0.049
0.112CysCys: 0.112 ± 0.019
0.474CysAsp: 0.474 ± 0.036
0.47CysGlu: 0.47 ± 0.033
0.332CysPhe: 0.332 ± 0.028
0.957CysGly: 0.957 ± 0.048
0.233CysHis: 0.233 ± 0.022
0.65CysIle: 0.65 ± 0.036
0.409CysLys: 0.409 ± 0.032
0.679CysLeu: 0.679 ± 0.037
0.262CysMet: 0.262 ± 0.022
0.282CysAsn: 0.282 ± 0.025
0.521CysPro: 0.521 ± 0.038
0.144CysGln: 0.144 ± 0.02
0.453CysArg: 0.453 ± 0.036
0.434CysSer: 0.434 ± 0.031
0.44CysThr: 0.44 ± 0.033
0.603CysVal: 0.603 ± 0.038
0.072CysTrp: 0.072 ± 0.013
0.273CysTyr: 0.273 ± 0.026
0.0CysXaa: 0.0 ± 0.0
Asp
6.647AspAla: 6.647 ± 0.154
0.512AspCys: 0.512 ± 0.033
3.429AspAsp: 3.429 ± 0.118
5.065AspGlu: 5.065 ± 0.14
2.879AspPhe: 2.879 ± 0.079
4.888AspGly: 4.888 ± 0.124
1.071AspHis: 1.071 ± 0.048
4.437AspIle: 4.437 ± 0.1
3.129AspLys: 3.129 ± 0.106
5.878AspLeu: 5.878 ± 0.121
1.676AspMet: 1.676 ± 0.066
1.647AspAsn: 1.647 ± 0.062
2.849AspPro: 2.849 ± 0.088
1.171AspGln: 1.171 ± 0.054
4.066AspArg: 4.066 ± 0.098
2.508AspSer: 2.508 ± 0.07
2.898AspThr: 2.898 ± 0.083
4.447AspVal: 4.447 ± 0.104
0.51AspTrp: 0.51 ± 0.04
2.312AspTyr: 2.312 ± 0.065
0.0AspXaa: 0.0 ± 0.0
Glu
7.877GluAla: 7.877 ± 0.168
0.455GluCys: 0.455 ± 0.034
5.152GluAsp: 5.152 ± 0.125
8.306GluGlu: 8.306 ± 0.201
2.439GluPhe: 2.439 ± 0.08
5.652GluGly: 5.652 ± 0.107
1.213GluHis: 1.213 ± 0.055
6.579GluIle: 6.579 ± 0.128
6.708GluLys: 6.708 ± 0.189
5.474GluLeu: 5.474 ± 0.135
2.511GluMet: 2.511 ± 0.078
3.732GluAsn: 3.732 ± 0.107
1.947GluPro: 1.947 ± 0.065
1.918GluGln: 1.918 ± 0.062
4.509GluArg: 4.509 ± 0.106
3.95GluSer: 3.95 ± 0.086
3.848GluThr: 3.848 ± 0.092
5.04GluVal: 5.04 ± 0.123
0.402GluTrp: 0.402 ± 0.031
2.422GluTyr: 2.422 ± 0.083
0.0GluXaa: 0.0 ± 0.0
Phe
3.397PheAla: 3.397 ± 0.089
0.481PheCys: 0.481 ± 0.032
2.614PheAsp: 2.614 ± 0.081
2.582PheGlu: 2.582 ± 0.084
2.168PhePhe: 2.168 ± 0.088
3.289PheGly: 3.289 ± 0.084
0.832PheHis: 0.832 ± 0.042
2.496PheIle: 2.496 ± 0.089
1.448PheLys: 1.448 ± 0.059
4.356PheLeu: 4.356 ± 0.116
1.035PheMet: 1.035 ± 0.039
1.08PheAsn: 1.08 ± 0.044
1.52PhePro: 1.52 ± 0.05
1.287PheGln: 1.287 ± 0.052
2.527PheArg: 2.527 ± 0.079
3.035PheSer: 3.035 ± 0.079
2.233PheThr: 2.233 ± 0.068
3.118PheVal: 3.118 ± 0.079
0.301PheTrp: 0.301 ± 0.025
1.56PheTyr: 1.56 ± 0.05
0.0PheXaa: 0.0 ± 0.0
Gly
6.53GlyAla: 6.53 ± 0.142
0.777GlyCys: 0.777 ± 0.046
4.524GlyAsp: 4.524 ± 0.11
5.77GlyGlu: 5.77 ± 0.127
3.232GlyPhe: 3.232 ± 0.094
5.91GlyGly: 5.91 ± 0.166
1.478GlyHis: 1.478 ± 0.063
6.657GlyIle: 6.657 ± 0.127
5.195GlyLys: 5.195 ± 0.095
6.511GlyLeu: 6.511 ± 0.132
2.244GlyMet: 2.244 ± 0.077
2.623GlyAsn: 2.623 ± 0.075
1.865GlyPro: 1.865 ± 0.076
1.778GlyGln: 1.778 ± 0.068
3.84GlyArg: 3.84 ± 0.093
3.762GlySer: 3.762 ± 0.092
3.808GlyThr: 3.808 ± 0.1
5.328GlyVal: 5.328 ± 0.108
0.489GlyTrp: 0.489 ± 0.033
3.12GlyTyr: 3.12 ± 0.094
0.0GlyXaa: 0.0 ± 0.0
His
1.403HisAla: 1.403 ± 0.049
0.237HisCys: 0.237 ± 0.023
0.976HisAsp: 0.976 ± 0.043
0.98HisGlu: 0.98 ± 0.048
0.853HisPhe: 0.853 ± 0.047
1.372HisGly: 1.372 ± 0.055
0.44HisHis: 0.44 ± 0.036
1.484HisIle: 1.484 ± 0.052
0.927HisLys: 0.927 ± 0.053
1.844HisLeu: 1.844 ± 0.065
0.523HisMet: 0.523 ± 0.032
0.58HisAsn: 0.58 ± 0.037
1.048HisPro: 1.048 ± 0.047
0.383HisGln: 0.383 ± 0.026
1.291HisArg: 1.291 ± 0.055
0.902HisSer: 0.902 ± 0.047
1.012HisThr: 1.012 ± 0.048
1.075HisVal: 1.075 ± 0.043
0.222HisTrp: 0.222 ± 0.024
0.735HisTyr: 0.735 ± 0.04
0.0HisXaa: 0.0 ± 0.0
Ile
6.587IleAla: 6.587 ± 0.126
0.747IleCys: 0.747 ± 0.043
4.871IleAsp: 4.871 ± 0.114
5.516IleGlu: 5.516 ± 0.126
2.828IlePhe: 2.828 ± 0.082
5.336IleGly: 5.336 ± 0.134
1.359IleHis: 1.359 ± 0.052
3.256IleIle: 3.256 ± 0.099
2.671IleLys: 2.671 ± 0.093
7.79IleLeu: 7.79 ± 0.152
1.348IleMet: 1.348 ± 0.061
1.916IleAsn: 1.916 ± 0.066
3.124IlePro: 3.124 ± 0.084
2.036IleGln: 2.036 ± 0.058
4.748IleArg: 4.748 ± 0.101
4.02IleSer: 4.02 ± 0.101
3.425IleThr: 3.425 ± 0.091
5.355IleVal: 5.355 ± 0.111
0.44IleTrp: 0.44 ± 0.032
2.455IleTyr: 2.455 ± 0.072
0.0IleXaa: 0.0 ± 0.0
Lys
4.731LysAla: 4.731 ± 0.153
0.286LysCys: 0.286 ± 0.027
4.342LysAsp: 4.342 ± 0.138
5.741LysGlu: 5.741 ± 0.14
1.668LysPhe: 1.668 ± 0.062
4.147LysGly: 4.147 ± 0.114
0.876LysHis: 0.876 ± 0.043
4.498LysIle: 4.498 ± 0.113
5.315LysLys: 5.315 ± 0.126
4.382LysLeu: 4.382 ± 0.091
1.725LysMet: 1.725 ± 0.063
3.006LysAsn: 3.006 ± 0.088
1.969LysPro: 1.969 ± 0.081
1.503LysGln: 1.503 ± 0.065
3.607LysArg: 3.607 ± 0.08
3.232LysSer: 3.232 ± 0.082
3.527LysThr: 3.527 ± 0.127
3.618LysVal: 3.618 ± 0.117
0.362LysTrp: 0.362 ± 0.029
1.933LysTyr: 1.933 ± 0.066
0.0LysXaa: 0.0 ± 0.0
Leu
8.759LeuAla: 8.759 ± 0.144
0.853LeuCys: 0.853 ± 0.039
5.673LeuAsp: 5.673 ± 0.122
6.795LeuGlu: 6.795 ± 0.129
4.365LeuPhe: 4.365 ± 0.115
6.71LeuGly: 6.71 ± 0.141
1.74LeuHis: 1.74 ± 0.064
5.593LeuIle: 5.593 ± 0.126
5.26LeuLys: 5.26 ± 0.115
9.46LeuLeu: 9.46 ± 0.191
2.424LeuMet: 2.424 ± 0.072
2.881LeuAsn: 2.881 ± 0.087
3.793LeuPro: 3.793 ± 0.094
2.392LeuGln: 2.392 ± 0.075
5.446LeuArg: 5.446 ± 0.11
6.668LeuSer: 6.668 ± 0.126
4.547LeuThr: 4.547 ± 0.105
5.861LeuVal: 5.861 ± 0.139
0.756LeuTrp: 0.756 ± 0.05
3.486LeuTyr: 3.486 ± 0.101
0.0LeuXaa: 0.0 ± 0.0
Met
2.739MetAla: 2.739 ± 0.076
0.174MetCys: 0.174 ± 0.018
1.89MetAsp: 1.89 ± 0.06
2.417MetGlu: 2.417 ± 0.08
0.73MetPhe: 0.73 ± 0.042
2.134MetGly: 2.134 ± 0.079
0.516MetHis: 0.516 ± 0.034
1.852MetIle: 1.852 ± 0.063
2.011MetLys: 2.011 ± 0.064
2.136MetLeu: 2.136 ± 0.079
0.673MetMet: 0.673 ± 0.041
1.054MetAsn: 1.054 ± 0.049
1.082MetPro: 1.082 ± 0.047
0.959MetGln: 0.959 ± 0.042
1.759MetArg: 1.759 ± 0.061
1.367MetSer: 1.367 ± 0.052
1.384MetThr: 1.384 ± 0.056
1.751MetVal: 1.751 ± 0.062
0.121MetTrp: 0.121 ± 0.015
0.656MetTyr: 0.656 ± 0.041
0.0MetXaa: 0.0 ± 0.0
Asn
2.932AsnAla: 2.932 ± 0.089
0.368AsnCys: 0.368 ± 0.032
1.613AsnAsp: 1.613 ± 0.063
2.132AsnGlu: 2.132 ± 0.074
1.56AsnPhe: 1.56 ± 0.068
2.424AsnGly: 2.424 ± 0.088
0.682AsnHis: 0.682 ± 0.038
2.775AsnIle: 2.775 ± 0.086
1.833AsnLys: 1.833 ± 0.072
3.268AsnLeu: 3.268 ± 0.08
1.031AsnMet: 1.031 ± 0.043
1.173AsnAsn: 1.173 ± 0.06
1.916AsnPro: 1.916 ± 0.092
0.849AsnGln: 0.849 ± 0.038
2.428AsnArg: 2.428 ± 0.07
1.497AsnSer: 1.497 ± 0.062
1.875AsnThr: 1.875 ± 0.072
2.282AsnVal: 2.282 ± 0.08
0.26AsnTrp: 0.26 ± 0.022
1.319AsnTyr: 1.319 ± 0.056
0.0AsnXaa: 0.0 ± 0.0
Pro
3.408ProAla: 3.408 ± 0.113
0.243ProCys: 0.243 ± 0.024
2.352ProAsp: 2.352 ± 0.08
3.421ProGlu: 3.421 ± 0.1
1.689ProPhe: 1.689 ± 0.07
2.693ProGly: 2.693 ± 0.091
0.749ProHis: 0.749 ± 0.04
2.379ProIle: 2.379 ± 0.076
2.25ProLys: 2.25 ± 0.066
3.357ProLeu: 3.357 ± 0.088
0.961ProMet: 0.961 ± 0.049
1.156ProAsn: 1.156 ± 0.06
1.018ProPro: 1.018 ± 0.052
1.02ProGln: 1.02 ± 0.048
1.662ProArg: 1.662 ± 0.057
1.977ProSer: 1.977 ± 0.068
1.816ProThr: 1.816 ± 0.059
3.309ProVal: 3.309 ± 0.089
0.271ProTrp: 0.271 ± 0.025
1.592ProTyr: 1.592 ± 0.063
0.0ProXaa: 0.0 ± 0.0
Gln
2.125GlnAla: 2.125 ± 0.063
0.186GlnCys: 0.186 ± 0.023
1.34GlnAsp: 1.34 ± 0.055
1.981GlnGlu: 1.981 ± 0.063
0.955GlnPhe: 0.955 ± 0.046
1.751GlnGly: 1.751 ± 0.069
0.334GlnHis: 0.334 ± 0.026
1.977GlnIle: 1.977 ± 0.057
2.341GlnLys: 2.341 ± 0.061
1.962GlnLeu: 1.962 ± 0.059
0.862GlnMet: 0.862 ± 0.041
1.171GlnAsn: 1.171 ± 0.048
0.787GlnPro: 0.787 ± 0.045
0.754GlnGln: 0.754 ± 0.044
1.442GlnArg: 1.442 ± 0.056
1.439GlnSer: 1.439 ± 0.059
1.287GlnThr: 1.287 ± 0.055
1.56GlnVal: 1.56 ± 0.061
0.258GlnTrp: 0.258 ± 0.023
0.957GlnTyr: 0.957 ± 0.05
0.0GlnXaa: 0.0 ± 0.0
Arg
5.104ArgAla: 5.104 ± 0.115
0.476ArgCys: 0.476 ± 0.032
3.488ArgAsp: 3.488 ± 0.096
5.3ArgGlu: 5.3 ± 0.121
2.481ArgPhe: 2.481 ± 0.073
4.09ArgGly: 4.09 ± 0.096
1.183ArgHis: 1.183 ± 0.055
4.687ArgIle: 4.687 ± 0.108
3.63ArgLys: 3.63 ± 0.096
5.171ArgLeu: 5.171 ± 0.11
1.672ArgMet: 1.672 ± 0.058
2.159ArgAsn: 2.159 ± 0.064
2.129ArgPro: 2.129 ± 0.076
1.619ArgGln: 1.619 ± 0.061
3.776ArgArg: 3.776 ± 0.119
2.792ArgSer: 2.792 ± 0.079
2.54ArgThr: 2.54 ± 0.071
3.429ArgVal: 3.429 ± 0.096
0.436ArgTrp: 0.436 ± 0.034
2.424ArgTyr: 2.424 ± 0.071
0.0ArgXaa: 0.0 ± 0.0
Ser
4.828SerAla: 4.828 ± 0.117
0.417SerCys: 0.417 ± 0.032
2.993SerAsp: 2.993 ± 0.08
3.554SerGlu: 3.554 ± 0.091
2.398SerPhe: 2.398 ± 0.074
4.701SerGly: 4.701 ± 0.095
1.052SerHis: 1.052 ± 0.045
3.723SerIle: 3.723 ± 0.097
2.856SerLys: 2.856 ± 0.09
5.133SerLeu: 5.133 ± 0.12
1.594SerMet: 1.594 ± 0.057
1.7SerAsn: 1.7 ± 0.061
1.903SerPro: 1.903 ± 0.06
1.185SerGln: 1.185 ± 0.056
2.896SerArg: 2.896 ± 0.083
2.477SerSer: 2.477 ± 0.078
2.587SerThr: 2.587 ± 0.078
4.136SerVal: 4.136 ± 0.097
0.377SerTrp: 0.377 ± 0.03
2.159SerTyr: 2.159 ± 0.062
0.0SerXaa: 0.0 ± 0.0
Thr
4.606ThrAla: 4.606 ± 0.105
0.368ThrCys: 0.368 ± 0.029
3.046ThrAsp: 3.046 ± 0.108
3.891ThrGlu: 3.891 ± 0.112
1.983ThrPhe: 1.983 ± 0.066
4.223ThrGly: 4.223 ± 0.102
0.925ThrHis: 0.925 ± 0.049
3.156ThrIle: 3.156 ± 0.087
2.798ThrLys: 2.798 ± 0.083
4.763ThrLeu: 4.763 ± 0.115
1.279ThrMet: 1.279 ± 0.058
1.526ThrAsn: 1.526 ± 0.066
2.254ThrPro: 2.254 ± 0.079
1.08ThrGln: 1.08 ± 0.044
2.489ThrArg: 2.489 ± 0.071
2.227ThrSer: 2.227 ± 0.07
2.568ThrThr: 2.568 ± 0.092
4.308ThrVal: 4.308 ± 0.137
0.305ThrTrp: 0.305 ± 0.026
1.539ThrTyr: 1.539 ± 0.071
0.0ThrXaa: 0.0 ± 0.0
Val
6.056ValAla: 6.056 ± 0.122
0.743ValCys: 0.743 ± 0.043
4.703ValAsp: 4.703 ± 0.114
5.741ValGlu: 5.741 ± 0.107
3.067ValPhe: 3.067 ± 0.081
4.773ValGly: 4.773 ± 0.131
1.276ValHis: 1.276 ± 0.057
4.401ValIle: 4.401 ± 0.109
3.757ValLys: 3.757 ± 0.114
7.525ValLeu: 7.525 ± 0.158
1.562ValMet: 1.562 ± 0.068
2.383ValAsn: 2.383 ± 0.074
2.767ValPro: 2.767 ± 0.091
1.909ValGln: 1.909 ± 0.07
3.952ValArg: 3.952 ± 0.082
4.071ValSer: 4.071 ± 0.086
3.461ValThr: 3.461 ± 0.126
5.802ValVal: 5.802 ± 0.14
0.47ValTrp: 0.47 ± 0.03
2.58ValTyr: 2.58 ± 0.089
0.0ValXaa: 0.0 ± 0.0
Trp
0.601TrpAla: 0.601 ± 0.041
0.047TrpCys: 0.047 ± 0.011
0.449TrpAsp: 0.449 ± 0.034
0.567TrpGlu: 0.567 ± 0.037
0.248TrpPhe: 0.248 ± 0.024
0.5TrpGly: 0.5 ± 0.03
0.121TrpHis: 0.121 ± 0.015
0.639TrpIle: 0.639 ± 0.038
0.472TrpLys: 0.472 ± 0.027
0.54TrpLeu: 0.54 ± 0.036
0.212TrpMet: 0.212 ± 0.02
0.309TrpAsn: 0.309 ± 0.027
0.21TrpPro: 0.21 ± 0.02
0.237TrpGln: 0.237 ± 0.022
0.411TrpArg: 0.411 ± 0.035
0.33TrpSer: 0.33 ± 0.026
0.305TrpThr: 0.305 ± 0.022
0.436TrpVal: 0.436 ± 0.034
0.055TrpTrp: 0.055 ± 0.011
0.243TrpTyr: 0.243 ± 0.027
0.0TrpXaa: 0.0 ± 0.0
Tyr
3.086TyrAla: 3.086 ± 0.085
0.33TyrCys: 0.33 ± 0.026
2.506TyrAsp: 2.506 ± 0.075
2.688TyrGlu: 2.688 ± 0.078
1.725TyrPhe: 1.725 ± 0.062
3.167TyrGly: 3.167 ± 0.082
0.709TyrHis: 0.709 ± 0.038
2.593TyrIle: 2.593 ± 0.08
1.789TyrLys: 1.789 ± 0.071
3.345TyrLeu: 3.345 ± 0.078
0.919TyrMet: 0.919 ± 0.045
1.188TyrAsn: 1.188 ± 0.057
1.45TyrPro: 1.45 ± 0.055
0.756TyrGln: 0.756 ± 0.037
2.432TyrArg: 2.432 ± 0.069
1.746TyrSer: 1.746 ± 0.049
1.937TyrThr: 1.937 ± 0.067
2.458TyrVal: 2.458 ± 0.064
0.258TyrTrp: 0.258 ± 0.023
1.365TyrTyr: 1.365 ± 0.052
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 1499 proteins (472416 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