Amino acid dipepetide frequency for Polaromonas sp. (strain JS666 / ATCC BAA-500)

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
16.372AlaAla: 16.372 ± 0.121
1.361AlaCys: 1.361 ± 0.029
6.014AlaAsp: 6.014 ± 0.062
6.093AlaGlu: 6.093 ± 0.07
4.053AlaPhe: 4.053 ± 0.045
10.54AlaGly: 10.54 ± 0.093
2.62AlaHis: 2.62 ± 0.039
5.364AlaIle: 5.364 ± 0.06
4.267AlaLys: 4.267 ± 0.063
14.198AlaLeu: 14.198 ± 0.115
3.568AlaMet: 3.568 ± 0.041
2.931AlaAsn: 2.931 ± 0.049
5.732AlaPro: 5.732 ± 0.085
5.631AlaGln: 5.631 ± 0.056
8.163AlaArg: 8.163 ± 0.089
7.045AlaSer: 7.045 ± 0.066
6.056AlaThr: 6.056 ± 0.054
8.949AlaVal: 8.949 ± 0.081
1.799AlaTrp: 1.799 ± 0.036
2.482AlaTyr: 2.482 ± 0.038
0.0AlaXaa: 0.0 ± 0.0
Cys
1.186CysAla: 1.186 ± 0.028
0.137CysCys: 0.137 ± 0.009
0.551CysAsp: 0.551 ± 0.02
0.565CysGlu: 0.565 ± 0.018
0.331CysPhe: 0.331 ± 0.013
1.003CysGly: 1.003 ± 0.029
0.27CysHis: 0.27 ± 0.013
0.447CysIle: 0.447 ± 0.016
0.304CysLys: 0.304 ± 0.014
0.867CysLeu: 0.867 ± 0.022
0.237CysMet: 0.237 ± 0.011
0.243CysAsn: 0.243 ± 0.012
0.518CysPro: 0.518 ± 0.018
0.305CysGln: 0.305 ± 0.014
0.578CysArg: 0.578 ± 0.02
0.558CysSer: 0.558 ± 0.019
0.51CysThr: 0.51 ± 0.019
0.773CysVal: 0.773 ± 0.021
0.137CysTrp: 0.137 ± 0.009
0.224CysTyr: 0.224 ± 0.012
0.0CysXaa: 0.0 ± 0.0
Asp
6.45AspAla: 6.45 ± 0.071
0.492AspCys: 0.492 ± 0.018
2.443AspAsp: 2.443 ± 0.034
3.002AspGlu: 3.002 ± 0.042
2.064AspPhe: 2.064 ± 0.036
4.146AspGly: 4.146 ± 0.054
1.067AspHis: 1.067 ± 0.027
2.568AspIle: 2.568 ± 0.043
1.912AspLys: 1.912 ± 0.035
5.163AspLeu: 5.163 ± 0.056
1.275AspMet: 1.275 ± 0.031
1.202AspAsn: 1.202 ± 0.027
2.626AspPro: 2.626 ± 0.042
1.607AspGln: 1.607 ± 0.027
3.04AspArg: 3.04 ± 0.047
2.385AspSer: 2.385 ± 0.042
2.481AspThr: 2.481 ± 0.053
3.917AspVal: 3.917 ± 0.046
0.864AspTrp: 0.864 ± 0.021
1.354AspTyr: 1.354 ± 0.027
0.0AspXaa: 0.0 ± 0.0
Glu
6.495GluAla: 6.495 ± 0.056
0.406GluCys: 0.406 ± 0.018
2.133GluAsp: 2.133 ± 0.037
2.547GluGlu: 2.547 ± 0.049
1.967GluPhe: 1.967 ± 0.035
3.688GluGly: 3.688 ± 0.054
1.282GluHis: 1.282 ± 0.03
2.776GluIle: 2.776 ± 0.047
2.3GluLys: 2.3 ± 0.039
5.98GluLeu: 5.98 ± 0.062
1.321GluMet: 1.321 ± 0.03
1.36GluAsn: 1.36 ± 0.029
2.372GluPro: 2.372 ± 0.035
2.51GluGln: 2.51 ± 0.037
4.166GluArg: 4.166 ± 0.057
2.734GluSer: 2.734 ± 0.042
2.622GluThr: 2.622 ± 0.042
4.036GluVal: 4.036 ± 0.05
0.679GluTrp: 0.679 ± 0.02
1.019GluTyr: 1.019 ± 0.025
0.0GluXaa: 0.0 ± 0.0
Phe
4.117PheAla: 4.117 ± 0.053
0.423PheCys: 0.423 ± 0.018
2.425PheAsp: 2.425 ± 0.038
2.201PheGlu: 2.201 ± 0.038
1.449PhePhe: 1.449 ± 0.032
3.301PheGly: 3.301 ± 0.044
0.732PheHis: 0.732 ± 0.024
1.639PheIle: 1.639 ± 0.032
1.384PheLys: 1.384 ± 0.028
3.107PheLeu: 3.107 ± 0.047
0.892PheMet: 0.892 ± 0.022
1.219PheAsn: 1.219 ± 0.027
1.621PhePro: 1.621 ± 0.029
1.027PheGln: 1.027 ± 0.026
1.929PheArg: 1.929 ± 0.035
2.352PheSer: 2.352 ± 0.039
1.97PheThr: 1.97 ± 0.038
2.806PheVal: 2.806 ± 0.041
0.536PheTrp: 0.536 ± 0.019
0.902PheTyr: 0.902 ± 0.024
0.0PheXaa: 0.0 ± 0.0
Gly
8.712GlyAla: 8.712 ± 0.082
0.902GlyCys: 0.902 ± 0.024
3.644GlyAsp: 3.644 ± 0.053
4.231GlyGlu: 4.231 ± 0.053
3.306GlyPhe: 3.306 ± 0.052
6.733GlyGly: 6.733 ± 0.108
1.879GlyHis: 1.879 ± 0.034
4.07GlyIle: 4.07 ± 0.058
3.737GlyLys: 3.737 ± 0.052
8.94GlyLeu: 8.94 ± 0.084
2.338GlyMet: 2.338 ± 0.039
2.275GlyAsn: 2.275 ± 0.053
3.047GlyPro: 3.047 ± 0.044
3.407GlyGln: 3.407 ± 0.053
5.12GlyArg: 5.12 ± 0.051
4.875GlySer: 4.875 ± 0.059
4.342GlyThr: 4.342 ± 0.061
6.569GlyVal: 6.569 ± 0.063
1.374GlyTrp: 1.374 ± 0.032
2.32GlyTyr: 2.32 ± 0.039
0.0GlyXaa: 0.0 ± 0.0
His
2.654HisAla: 2.654 ± 0.038
0.303HisCys: 0.303 ± 0.013
1.157HisAsp: 1.157 ± 0.029
1.201HisGlu: 1.201 ± 0.027
0.896HisPhe: 0.896 ± 0.023
2.031HisGly: 2.031 ± 0.043
0.651HisHis: 0.651 ± 0.022
1.075HisIle: 1.075 ± 0.025
0.664HisLys: 0.664 ± 0.02
2.273HisLeu: 2.273 ± 0.041
0.519HisMet: 0.519 ± 0.018
0.526HisAsn: 0.526 ± 0.019
1.459HisPro: 1.459 ± 0.03
0.812HisGln: 0.812 ± 0.02
1.415HisArg: 1.415 ± 0.029
1.144HisSer: 1.144 ± 0.027
1.092HisThr: 1.092 ± 0.024
1.604HisVal: 1.604 ± 0.033
0.418HisTrp: 0.418 ± 0.017
0.643HisTyr: 0.643 ± 0.02
0.0HisXaa: 0.0 ± 0.0
Ile
6.141IleAla: 6.141 ± 0.068
0.476IleCys: 0.476 ± 0.018
2.97IleAsp: 2.97 ± 0.047
3.144IleGlu: 3.144 ± 0.046
1.468IlePhe: 1.468 ± 0.034
4.06IleGly: 4.06 ± 0.058
0.93IleHis: 0.93 ± 0.023
1.751IleIle: 1.751 ± 0.034
1.871IleLys: 1.871 ± 0.039
3.525IleLeu: 3.525 ± 0.054
0.866IleMet: 0.866 ± 0.022
1.556IleAsn: 1.556 ± 0.032
2.251IlePro: 2.251 ± 0.04
1.454IleGln: 1.454 ± 0.027
2.756IleArg: 2.756 ± 0.037
2.779IleSer: 2.779 ± 0.037
2.654IleThr: 2.654 ± 0.041
3.557IleVal: 3.557 ± 0.054
0.487IleTrp: 0.487 ± 0.019
1.086IleTyr: 1.086 ± 0.028
0.0IleXaa: 0.0 ± 0.0
Lys
4.737LysAla: 4.737 ± 0.067
0.217LysCys: 0.217 ± 0.012
1.9LysAsp: 1.9 ± 0.042
1.792LysGlu: 1.792 ± 0.037
1.171LysPhe: 1.171 ± 0.027
2.766LysGly: 2.766 ± 0.042
0.772LysHis: 0.772 ± 0.018
1.774LysIle: 1.774 ± 0.038
1.743LysLys: 1.743 ± 0.042
4.105LysLeu: 4.105 ± 0.053
0.977LysMet: 0.977 ± 0.025
1.235LysAsn: 1.235 ± 0.028
2.359LysPro: 2.359 ± 0.045
1.296LysGln: 1.296 ± 0.032
2.428LysArg: 2.428 ± 0.038
2.226LysSer: 2.226 ± 0.039
2.365LysThr: 2.365 ± 0.04
2.833LysVal: 2.833 ± 0.045
0.419LysTrp: 0.419 ± 0.014
0.783LysTyr: 0.783 ± 0.02
0.0LysXaa: 0.0 ± 0.0
Leu
14.398LeuAla: 14.398 ± 0.129
1.037LeuCys: 1.037 ± 0.026
5.541LeuAsp: 5.541 ± 0.062
5.29LeuGlu: 5.29 ± 0.062
3.437LeuPhe: 3.437 ± 0.046
8.669LeuGly: 8.669 ± 0.08
2.285LeuHis: 2.285 ± 0.037
4.614LeuIle: 4.614 ± 0.055
4.332LeuLys: 4.332 ± 0.061
11.323LeuLeu: 11.323 ± 0.119
2.739LeuMet: 2.739 ± 0.042
2.972LeuAsn: 2.972 ± 0.044
5.948LeuPro: 5.948 ± 0.064
4.336LeuGln: 4.336 ± 0.054
7.023LeuArg: 7.023 ± 0.067
6.264LeuSer: 6.264 ± 0.061
5.534LeuThr: 5.534 ± 0.051
7.815LeuVal: 7.815 ± 0.087
1.287LeuTrp: 1.287 ± 0.031
2.039LeuTyr: 2.039 ± 0.037
0.0LeuXaa: 0.0 ± 0.0
Met
3.158MetAla: 3.158 ± 0.043
0.185MetCys: 0.185 ± 0.01
1.201MetAsp: 1.201 ± 0.028
1.175MetGlu: 1.175 ± 0.028
0.756MetPhe: 0.756 ± 0.023
2.007MetGly: 2.007 ± 0.039
0.55MetHis: 0.55 ± 0.018
1.032MetIle: 1.032 ± 0.026
1.248MetLys: 1.248 ± 0.027
2.784MetLeu: 2.784 ± 0.042
0.645MetMet: 0.645 ± 0.02
0.946MetAsn: 0.946 ± 0.023
1.524MetPro: 1.524 ± 0.03
1.143MetGln: 1.143 ± 0.026
1.699MetArg: 1.699 ± 0.029
1.663MetSer: 1.663 ± 0.03
1.73MetThr: 1.73 ± 0.031
1.833MetVal: 1.833 ± 0.036
0.214MetTrp: 0.214 ± 0.012
0.401MetTyr: 0.401 ± 0.017
0.0MetXaa: 0.0 ± 0.0
Asn
3.27AsnAla: 3.27 ± 0.045
0.286AsnCys: 0.286 ± 0.014
1.348AsnAsp: 1.348 ± 0.045
1.31AsnGlu: 1.31 ± 0.029
1.027AsnPhe: 1.027 ± 0.026
2.215AsnGly: 2.215 ± 0.039
0.581AsnHis: 0.581 ± 0.016
1.364AsnIle: 1.364 ± 0.03
0.973AsnLys: 0.973 ± 0.026
2.838AsnLeu: 2.838 ± 0.044
0.619AsnMet: 0.619 ± 0.018
0.763AsnAsn: 0.763 ± 0.024
1.985AsnPro: 1.985 ± 0.039
0.972AsnGln: 0.972 ± 0.026
1.749AsnArg: 1.749 ± 0.034
1.429AsnSer: 1.429 ± 0.029
1.525AsnThr: 1.525 ± 0.031
1.968AsnVal: 1.968 ± 0.03
0.449AsnTrp: 0.449 ± 0.017
0.76AsnTyr: 0.76 ± 0.022
0.0AsnXaa: 0.0 ± 0.0
Pro
6.961ProAla: 6.961 ± 0.096
0.398ProCys: 0.398 ± 0.015
2.994ProAsp: 2.994 ± 0.044
3.28ProGlu: 3.28 ± 0.05
1.814ProPhe: 1.814 ± 0.035
4.679ProGly: 4.679 ± 0.058
1.189ProHis: 1.189 ± 0.026
1.95ProIle: 1.95 ± 0.034
1.726ProLys: 1.726 ± 0.032
5.191ProLeu: 5.191 ± 0.055
1.339ProMet: 1.339 ± 0.027
1.348ProAsn: 1.348 ± 0.03
2.653ProPro: 2.653 ± 0.052
2.097ProGln: 2.097 ± 0.033
2.727ProArg: 2.727 ± 0.04
2.851ProSer: 2.851 ± 0.044
2.593ProThr: 2.593 ± 0.041
4.359ProVal: 4.359 ± 0.06
0.774ProTrp: 0.774 ± 0.024
1.234ProTyr: 1.234 ± 0.028
0.0ProXaa: 0.0 ± 0.0
Gln
5.547GlnAla: 5.547 ± 0.064
0.316GlnCys: 0.316 ± 0.015
1.632GlnAsp: 1.632 ± 0.028
1.654GlnGlu: 1.654 ± 0.034
1.316GlnPhe: 1.316 ± 0.033
3.031GlnGly: 3.031 ± 0.046
1.004GlnHis: 1.004 ± 0.026
1.875GlnIle: 1.875 ± 0.04
1.374GlnLys: 1.374 ± 0.029
4.335GlnLeu: 4.335 ± 0.056
1.009GlnMet: 1.009 ± 0.025
0.915GlnAsn: 0.915 ± 0.022
2.256GlnPro: 2.256 ± 0.036
1.904GlnGln: 1.904 ± 0.045
3.22GlnArg: 3.22 ± 0.047
2.149GlnSer: 2.149 ± 0.036
2.065GlnThr: 2.065 ± 0.034
3.02GlnVal: 3.02 ± 0.045
0.625GlnTrp: 0.625 ± 0.02
0.782GlnTyr: 0.782 ± 0.02
0.0GlnXaa: 0.0 ± 0.0
Arg
7.18ArgAla: 7.18 ± 0.072
0.622ArgCys: 0.622 ± 0.022
3.217ArgAsp: 3.217 ± 0.04
3.941ArgGlu: 3.941 ± 0.054
2.604ArgPhe: 2.604 ± 0.037
4.301ArgGly: 4.301 ± 0.056
1.82ArgHis: 1.82 ± 0.039
3.431ArgIle: 3.431 ± 0.046
2.372ArgLys: 2.372 ± 0.04
7.373ArgLeu: 7.373 ± 0.071
1.761ArgMet: 1.761 ± 0.036
1.77ArgAsn: 1.77 ± 0.034
3.114ArgPro: 3.114 ± 0.041
2.939ArgGln: 2.939 ± 0.049
4.457ArgArg: 4.457 ± 0.059
3.501ArgSer: 3.501 ± 0.047
3.015ArgThr: 3.015 ± 0.048
4.825ArgVal: 4.825 ± 0.05
1.063ArgTrp: 1.063 ± 0.027
1.719ArgTyr: 1.719 ± 0.03
0.0ArgXaa: 0.0 ± 0.0
Ser
6.63SerAla: 6.63 ± 0.067
0.539SerCys: 0.539 ± 0.02
2.69SerAsp: 2.69 ± 0.039
2.696SerGlu: 2.696 ± 0.039
2.221SerPhe: 2.221 ± 0.033
5.405SerGly: 5.405 ± 0.057
1.271SerHis: 1.271 ± 0.028
2.57SerIle: 2.57 ± 0.041
1.943SerLys: 1.943 ± 0.038
6.052SerLeu: 6.052 ± 0.065
1.568SerMet: 1.568 ± 0.028
1.535SerAsn: 1.535 ± 0.036
3.124SerPro: 3.124 ± 0.045
2.037SerGln: 2.037 ± 0.035
3.733SerArg: 3.733 ± 0.046
3.562SerSer: 3.562 ± 0.059
3.076SerThr: 3.076 ± 0.043
4.217SerVal: 4.217 ± 0.055
0.797SerTrp: 0.797 ± 0.024
1.37SerTyr: 1.37 ± 0.031
0.0SerXaa: 0.0 ± 0.0
Thr
6.074ThrAla: 6.074 ± 0.059
0.437ThrCys: 0.437 ± 0.02
2.545ThrAsp: 2.545 ± 0.043
2.515ThrGlu: 2.515 ± 0.038
1.834ThrPhe: 1.834 ± 0.033
4.676ThrGly: 4.676 ± 0.068
1.227ThrHis: 1.227 ± 0.029
2.259ThrIle: 2.259 ± 0.037
1.444ThrLys: 1.444 ± 0.032
6.245ThrLeu: 6.245 ± 0.071
1.19ThrMet: 1.19 ± 0.025
1.283ThrAsn: 1.283 ± 0.029
3.614ThrPro: 3.614 ± 0.046
2.066ThrGln: 2.066 ± 0.039
3.264ThrArg: 3.264 ± 0.047
3.029ThrSer: 3.029 ± 0.041
2.85ThrThr: 2.85 ± 0.043
4.299ThrVal: 4.299 ± 0.055
0.701ThrTrp: 0.701 ± 0.022
1.143ThrTyr: 1.143 ± 0.027
0.0ThrXaa: 0.0 ± 0.0
Val
9.235ValAla: 9.235 ± 0.081
0.753ValCys: 0.753 ± 0.021
3.848ValAsp: 3.848 ± 0.049
4.014ValGlu: 4.014 ± 0.054
2.784ValPhe: 2.784 ± 0.043
5.561ValGly: 5.561 ± 0.059
1.596ValHis: 1.596 ± 0.034
3.745ValIle: 3.745 ± 0.053
2.95ValLys: 2.95 ± 0.053
8.127ValLeu: 8.127 ± 0.081
2.14ValMet: 2.14 ± 0.037
2.29ValAsn: 2.29 ± 0.039
4.003ValPro: 4.003 ± 0.047
2.888ValGln: 2.888 ± 0.038
4.81ValArg: 4.81 ± 0.059
4.426ValSer: 4.426 ± 0.046
4.212ValThr: 4.212 ± 0.055
6.385ValVal: 6.385 ± 0.073
1.004ValTrp: 1.004 ± 0.026
1.612ValTyr: 1.612 ± 0.03
0.0ValXaa: 0.0 ± 0.0
Trp
1.393TrpAla: 1.393 ± 0.03
0.178TrpCys: 0.178 ± 0.01
0.601TrpAsp: 0.601 ± 0.017
0.559TrpGlu: 0.559 ± 0.019
0.562TrpPhe: 0.562 ± 0.021
0.937TrpGly: 0.937 ± 0.024
0.365TrpHis: 0.365 ± 0.016
0.643TrpIle: 0.643 ± 0.02
0.53TrpLys: 0.53 ± 0.017
2.0TrpLeu: 2.0 ± 0.04
0.416TrpMet: 0.416 ± 0.015
0.417TrpAsn: 0.417 ± 0.016
0.707TrpPro: 0.707 ± 0.022
0.726TrpGln: 0.726 ± 0.021
1.087TrpArg: 1.087 ± 0.026
0.819TrpSer: 0.819 ± 0.025
0.742TrpThr: 0.742 ± 0.022
1.015TrpVal: 1.015 ± 0.025
0.254TrpTrp: 0.254 ± 0.013
0.292TrpTyr: 0.292 ± 0.015
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.529TyrAla: 2.529 ± 0.036
0.273TyrCys: 0.273 ± 0.013
1.204TyrAsp: 1.204 ± 0.027
1.182TyrGlu: 1.182 ± 0.026
0.975TyrPhe: 0.975 ± 0.029
2.072TyrGly: 2.072 ± 0.038
0.449TyrHis: 0.449 ± 0.016
0.835TyrIle: 0.835 ± 0.022
0.82TyrLys: 0.82 ± 0.025
2.456TyrLeu: 2.456 ± 0.042
0.477TyrMet: 0.477 ± 0.016
0.647TyrAsn: 0.647 ± 0.021
1.245TyrPro: 1.245 ± 0.023
0.871TyrGln: 0.871 ± 0.024
1.66TyrArg: 1.66 ± 0.03
1.243TyrSer: 1.243 ± 0.029
1.262TyrThr: 1.262 ± 0.028
1.602TyrVal: 1.602 ± 0.031
0.364TyrTrp: 0.364 ± 0.014
0.556TyrTyr: 0.556 ± 0.02
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 5437 proteins (1711118 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