Amino acid dipepetide frequency for Streptomyces sp. WAC 01438

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
21.07AlaAla: 21.07 ± 0.171
1.069AlaCys: 1.069 ± 0.021
8.375AlaAsp: 8.375 ± 0.065
9.067AlaGlu: 9.067 ± 0.081
3.46AlaPhe: 3.46 ± 0.041
13.434AlaGly: 13.434 ± 0.105
3.039AlaHis: 3.039 ± 0.038
3.075AlaIle: 3.075 ± 0.049
2.55AlaLys: 2.55 ± 0.043
14.592AlaLeu: 14.592 ± 0.101
2.405AlaMet: 2.405 ± 0.035
1.746AlaAsn: 1.746 ± 0.028
7.305AlaPro: 7.305 ± 0.074
3.566AlaGln: 3.566 ± 0.052
10.976AlaArg: 10.976 ± 0.075
5.724AlaSer: 5.724 ± 0.056
6.657AlaThr: 6.657 ± 0.062
12.503AlaVal: 12.503 ± 0.1
1.841AlaTrp: 1.841 ± 0.027
2.693AlaTyr: 2.693 ± 0.036
0.0AlaXaa: 0.0 ± 0.0
Cys
1.073CysAla: 1.073 ± 0.021
0.094CysCys: 0.094 ± 0.007
0.483CysAsp: 0.483 ± 0.014
0.411CysGlu: 0.411 ± 0.013
0.207CysPhe: 0.207 ± 0.01
0.935CysGly: 0.935 ± 0.022
0.201CysHis: 0.201 ± 0.009
0.141CysIle: 0.141 ± 0.008
0.107CysLys: 0.107 ± 0.008
0.735CysLeu: 0.735 ± 0.022
0.124CysMet: 0.124 ± 0.007
0.121CysAsn: 0.121 ± 0.008
0.494CysPro: 0.494 ± 0.019
0.156CysGln: 0.156 ± 0.009
0.617CysArg: 0.617 ± 0.016
0.44CysSer: 0.44 ± 0.015
0.5CysThr: 0.5 ± 0.015
0.67CysVal: 0.67 ± 0.019
0.124CysTrp: 0.124 ± 0.007
0.152CysTyr: 0.152 ± 0.007
0.0CysXaa: 0.0 ± 0.0
Asp
8.033AspAla: 8.033 ± 0.065
0.443AspCys: 0.443 ± 0.015
3.92AspAsp: 3.92 ± 0.041
4.002AspGlu: 4.002 ± 0.048
1.641AspPhe: 1.641 ± 0.028
6.689AspGly: 6.689 ± 0.062
1.437AspHis: 1.437 ± 0.028
1.918AspIle: 1.918 ± 0.027
1.168AspLys: 1.168 ± 0.026
6.274AspLeu: 6.274 ± 0.058
0.829AspMet: 0.829 ± 0.022
0.935AspAsn: 0.935 ± 0.025
4.618AspPro: 4.618 ± 0.049
1.45AspGln: 1.45 ± 0.026
5.238AspArg: 5.238 ± 0.057
2.371AspSer: 2.371 ± 0.036
3.423AspThr: 3.423 ± 0.04
4.939AspVal: 4.939 ± 0.049
1.045AspTrp: 1.045 ± 0.021
1.103AspTyr: 1.103 ± 0.025
0.0AspXaa: 0.0 ± 0.0
Glu
7.672GluAla: 7.672 ± 0.077
0.375GluCys: 0.375 ± 0.013
3.164GluAsp: 3.164 ± 0.04
3.983GluGlu: 3.983 ± 0.058
1.463GluPhe: 1.463 ± 0.026
4.658GluGly: 4.658 ± 0.048
1.596GluHis: 1.596 ± 0.028
2.235GluIle: 2.235 ± 0.033
1.467GluLys: 1.467 ± 0.032
6.937GluLeu: 6.937 ± 0.064
0.903GluMet: 0.903 ± 0.022
1.065GluAsn: 1.065 ± 0.023
3.557GluPro: 3.557 ± 0.043
2.265GluGln: 2.265 ± 0.036
5.944GluArg: 5.944 ± 0.061
2.587GluSer: 2.587 ± 0.035
3.038GluThr: 3.038 ± 0.035
4.624GluVal: 4.624 ± 0.056
0.78GluTrp: 0.78 ± 0.02
1.171GluTyr: 1.171 ± 0.026
0.0GluXaa: 0.0 ± 0.0
Phe
3.599PheAla: 3.599 ± 0.04
0.252PheCys: 0.252 ± 0.011
1.986PheAsp: 1.986 ± 0.034
1.46PheGlu: 1.46 ± 0.027
0.879PhePhe: 0.879 ± 0.024
2.929PheGly: 2.929 ± 0.041
0.623PheHis: 0.623 ± 0.019
0.673PheIle: 0.673 ± 0.019
0.458PheLys: 0.458 ± 0.015
2.606PheLeu: 2.606 ± 0.037
0.421PheMet: 0.421 ± 0.018
0.53PheAsn: 0.53 ± 0.016
1.382PhePro: 1.382 ± 0.024
0.654PheGln: 0.654 ± 0.017
1.88PheArg: 1.88 ± 0.027
1.381PheSer: 1.381 ± 0.025
1.962PheThr: 1.962 ± 0.031
2.274PheVal: 2.274 ± 0.04
0.398PheTrp: 0.398 ± 0.014
0.551PheTyr: 0.551 ± 0.015
0.0PheXaa: 0.0 ± 0.0
Gly
11.101GlyAla: 11.101 ± 0.084
0.837GlyCys: 0.837 ± 0.019
5.438GlyAsp: 5.438 ± 0.056
5.446GlyGlu: 5.446 ± 0.06
2.83GlyPhe: 2.83 ± 0.038
8.939GlyGly: 8.939 ± 0.087
2.408GlyHis: 2.408 ± 0.038
3.341GlyIle: 3.341 ± 0.038
2.238GlyLys: 2.238 ± 0.035
9.448GlyLeu: 9.448 ± 0.065
1.991GlyMet: 1.991 ± 0.034
1.684GlyAsn: 1.684 ± 0.031
5.33GlyPro: 5.33 ± 0.063
2.46GlyGln: 2.46 ± 0.033
8.287GlyArg: 8.287 ± 0.06
5.203GlySer: 5.203 ± 0.051
6.577GlyThr: 6.577 ± 0.067
7.57GlyVal: 7.57 ± 0.094
1.661GlyTrp: 1.661 ± 0.029
2.171GlyTyr: 2.171 ± 0.035
0.0GlyXaa: 0.0 ± 0.0
His
2.809HisAla: 2.809 ± 0.038
0.202HisCys: 0.202 ± 0.01
1.408HisAsp: 1.408 ± 0.027
1.278HisGlu: 1.278 ± 0.023
0.643HisPhe: 0.643 ± 0.016
2.499HisGly: 2.499 ± 0.034
0.75HisHis: 0.75 ± 0.021
0.698HisIle: 0.698 ± 0.016
0.35HisLys: 0.35 ± 0.011
2.458HisLeu: 2.458 ± 0.036
0.349HisMet: 0.349 ± 0.013
0.368HisAsn: 0.368 ± 0.012
1.915HisPro: 1.915 ± 0.031
0.637HisGln: 0.637 ± 0.017
2.283HisArg: 2.283 ± 0.037
0.983HisSer: 0.983 ± 0.02
1.401HisThr: 1.401 ± 0.027
1.78HisVal: 1.78 ± 0.029
0.384HisTrp: 0.384 ± 0.012
0.468HisTyr: 0.468 ± 0.014
0.0HisXaa: 0.0 ± 0.0
Ile
4.458IleAla: 4.458 ± 0.05
0.274IleCys: 0.274 ± 0.011
2.207IleAsp: 2.207 ± 0.036
1.93IleGlu: 1.93 ± 0.031
0.658IlePhe: 0.658 ± 0.02
3.361IleGly: 3.361 ± 0.04
0.597IleHis: 0.597 ± 0.016
0.787IleIle: 0.787 ± 0.022
0.669IleLys: 0.669 ± 0.022
2.293IleLeu: 2.293 ± 0.035
0.448IleMet: 0.448 ± 0.014
0.622IleAsn: 0.622 ± 0.018
1.674IlePro: 1.674 ± 0.031
0.66IleGln: 0.66 ± 0.018
2.229IleArg: 2.229 ± 0.033
1.494IleSer: 1.494 ± 0.025
2.151IleThr: 2.151 ± 0.035
2.63IleVal: 2.63 ± 0.04
0.351IleTrp: 0.351 ± 0.013
0.491IleTyr: 0.491 ± 0.015
0.0IleXaa: 0.0 ± 0.0
Lys
2.757LysAla: 2.757 ± 0.046
0.104LysCys: 0.104 ± 0.008
1.304LysAsp: 1.304 ± 0.03
1.26LysGlu: 1.26 ± 0.027
0.418LysPhe: 0.418 ± 0.015
1.753LysGly: 1.753 ± 0.031
0.392LysHis: 0.392 ± 0.013
0.787LysIle: 0.787 ± 0.023
0.857LysLys: 0.857 ± 0.031
1.841LysLeu: 1.841 ± 0.033
0.341LysMet: 0.341 ± 0.012
0.499LysAsn: 0.499 ± 0.017
1.196LysPro: 1.196 ± 0.025
0.653LysGln: 0.653 ± 0.022
1.473LysArg: 1.473 ± 0.028
1.042LysSer: 1.042 ± 0.025
1.156LysThr: 1.156 ± 0.029
1.78LysVal: 1.78 ± 0.035
0.243LysTrp: 0.243 ± 0.011
0.428LysTyr: 0.428 ± 0.014
0.0LysXaa: 0.0 ± 0.0
Leu
15.063LeuAla: 15.063 ± 0.102
0.826LeuCys: 0.826 ± 0.02
6.722LeuAsp: 6.722 ± 0.062
4.995LeuGlu: 4.995 ± 0.055
2.589LeuPhe: 2.589 ± 0.042
9.051LeuGly: 9.051 ± 0.071
2.364LeuHis: 2.364 ± 0.039
3.135LeuIle: 3.135 ± 0.043
1.961LeuLys: 1.961 ± 0.033
11.308LeuLeu: 11.308 ± 0.094
1.633LeuMet: 1.633 ± 0.027
1.59LeuAsn: 1.59 ± 0.028
6.521LeuPro: 6.521 ± 0.062
2.076LeuGln: 2.076 ± 0.032
9.08LeuArg: 9.08 ± 0.063
5.23LeuSer: 5.23 ± 0.054
7.031LeuThr: 7.031 ± 0.069
8.868LeuVal: 8.868 ± 0.084
1.305LeuTrp: 1.305 ± 0.023
1.84LeuTyr: 1.84 ± 0.028
0.0LeuXaa: 0.0 ± 0.0
Met
2.278MetAla: 2.278 ± 0.035
0.133MetCys: 0.133 ± 0.007
0.894MetAsp: 0.894 ± 0.02
0.757MetGlu: 0.757 ± 0.018
0.466MetPhe: 0.466 ± 0.015
1.31MetGly: 1.31 ± 0.028
0.358MetHis: 0.358 ± 0.013
0.631MetIle: 0.631 ± 0.019
0.431MetLys: 0.431 ± 0.014
1.674MetLeu: 1.674 ± 0.027
0.31MetMet: 0.31 ± 0.012
0.414MetAsn: 0.414 ± 0.013
1.091MetPro: 1.091 ± 0.022
0.451MetGln: 0.451 ± 0.016
1.455MetArg: 1.455 ± 0.029
1.299MetSer: 1.299 ± 0.026
1.563MetThr: 1.563 ± 0.029
1.253MetVal: 1.253 ± 0.027
0.206MetTrp: 0.206 ± 0.008
0.321MetTyr: 0.321 ± 0.016
0.0MetXaa: 0.0 ± 0.0
Asn
2.097AsnAla: 2.097 ± 0.033
0.15AsnCys: 0.15 ± 0.008
0.953AsnAsp: 0.953 ± 0.02
0.81AsnGlu: 0.81 ± 0.021
0.46AsnPhe: 0.46 ± 0.015
1.812AsnGly: 1.812 ± 0.032
0.388AsnHis: 0.388 ± 0.013
0.584AsnIle: 0.584 ± 0.018
0.389AsnLys: 0.389 ± 0.014
1.551AsnLeu: 1.551 ± 0.027
0.291AsnMet: 0.291 ± 0.011
0.402AsnAsn: 0.402 ± 0.013
1.251AsnPro: 1.251 ± 0.026
0.484AsnGln: 0.484 ± 0.018
1.262AsnArg: 1.262 ± 0.028
0.819AsnSer: 0.819 ± 0.02
1.059AsnThr: 1.059 ± 0.024
1.34AsnVal: 1.34 ± 0.026
0.294AsnTrp: 0.294 ± 0.011
0.381AsnTyr: 0.381 ± 0.014
0.0AsnXaa: 0.0 ± 0.0
Pro
8.782ProAla: 8.782 ± 0.078
0.343ProCys: 0.343 ± 0.013
4.766ProAsp: 4.766 ± 0.056
4.539ProGlu: 4.539 ± 0.048
1.548ProPhe: 1.548 ± 0.026
6.998ProGly: 6.998 ± 0.08
1.443ProHis: 1.443 ± 0.027
1.121ProIle: 1.121 ± 0.027
1.082ProLys: 1.082 ± 0.027
5.402ProLeu: 5.402 ± 0.056
0.989ProMet: 0.989 ± 0.021
0.803ProAsn: 0.803 ± 0.02
3.73ProPro: 3.73 ± 0.062
1.615ProGln: 1.615 ± 0.03
4.265ProArg: 4.265 ± 0.058
3.122ProSer: 3.122 ± 0.042
3.02ProThr: 3.02 ± 0.032
5.719ProVal: 5.719 ± 0.06
0.87ProTrp: 0.87 ± 0.022
1.378ProTyr: 1.378 ± 0.027
0.0ProXaa: 0.0 ± 0.0
Gln
3.49GlnAla: 3.49 ± 0.04
0.161GlnCys: 0.161 ± 0.009
1.391GlnAsp: 1.391 ± 0.026
1.492GlnGlu: 1.492 ± 0.03
0.628GlnPhe: 0.628 ± 0.017
2.22GlnGly: 2.22 ± 0.038
0.635GlnHis: 0.635 ± 0.017
0.999GlnIle: 0.999 ± 0.023
0.572GlnLys: 0.572 ± 0.017
2.876GlnLeu: 2.876 ± 0.044
0.473GlnMet: 0.473 ± 0.016
0.488GlnAsn: 0.488 ± 0.015
1.582GlnPro: 1.582 ± 0.032
1.155GlnGln: 1.155 ± 0.029
2.361GlnArg: 2.361 ± 0.039
1.154GlnSer: 1.154 ± 0.023
1.233GlnThr: 1.233 ± 0.022
2.286GlnVal: 2.286 ± 0.044
0.449GlnTrp: 0.449 ± 0.016
0.587GlnTyr: 0.587 ± 0.017
0.0GlnXaa: 0.0 ± 0.0
Arg
10.473ArgAla: 10.473 ± 0.077
0.581ArgCys: 0.581 ± 0.017
4.525ArgAsp: 4.525 ± 0.048
5.274ArgGlu: 5.274 ± 0.049
2.4ArgPhe: 2.4 ± 0.03
6.129ArgGly: 6.129 ± 0.057
2.337ArgHis: 2.337 ± 0.032
3.247ArgIle: 3.247 ± 0.037
1.635ArgLys: 1.635 ± 0.036
9.258ArgLeu: 9.258 ± 0.073
1.82ArgMet: 1.82 ± 0.03
1.375ArgAsn: 1.375 ± 0.028
5.368ArgPro: 5.368 ± 0.062
2.308ArgGln: 2.308 ± 0.034
8.438ArgArg: 8.438 ± 0.081
4.105ArgSer: 4.105 ± 0.041
5.762ArgThr: 5.762 ± 0.053
6.271ArgVal: 6.271 ± 0.059
1.401ArgTrp: 1.401 ± 0.028
1.834ArgTyr: 1.834 ± 0.031
0.0ArgXaa: 0.0 ± 0.0
Ser
6.457SerAla: 6.457 ± 0.057
0.386SerCys: 0.386 ± 0.015
2.677SerAsp: 2.677 ± 0.041
2.457SerGlu: 2.457 ± 0.037
1.48SerPhe: 1.48 ± 0.026
5.805SerGly: 5.805 ± 0.06
0.968SerHis: 0.968 ± 0.021
1.241SerIle: 1.241 ± 0.027
0.922SerLys: 0.922 ± 0.022
4.707SerLeu: 4.707 ± 0.048
1.036SerMet: 1.036 ± 0.022
0.786SerAsn: 0.786 ± 0.019
3.079SerPro: 3.079 ± 0.038
1.157SerGln: 1.157 ± 0.023
3.743SerArg: 3.743 ± 0.038
2.61SerSer: 2.61 ± 0.038
2.775SerThr: 2.775 ± 0.041
4.315SerVal: 4.315 ± 0.049
0.806SerTrp: 0.806 ± 0.02
1.144SerTyr: 1.144 ± 0.027
0.0SerXaa: 0.0 ± 0.0
Thr
8.974ThrAla: 8.974 ± 0.067
0.414ThrCys: 0.414 ± 0.015
3.763ThrAsp: 3.763 ± 0.04
3.426ThrGlu: 3.426 ± 0.04
1.548ThrPhe: 1.548 ± 0.026
6.754ThrGly: 6.754 ± 0.061
1.288ThrHis: 1.288 ± 0.024
1.562ThrIle: 1.562 ± 0.027
1.066ThrLys: 1.066 ± 0.025
5.736ThrLeu: 5.736 ± 0.053
0.957ThrMet: 0.957 ± 0.023
0.938ThrAsn: 0.938 ± 0.022
4.134ThrPro: 4.134 ± 0.044
1.309ThrGln: 1.309 ± 0.024
4.126ThrArg: 4.126 ± 0.047
2.976ThrSer: 2.976 ± 0.042
3.715ThrThr: 3.715 ± 0.046
6.191ThrVal: 6.191 ± 0.052
0.878ThrTrp: 0.878 ± 0.021
1.329ThrTyr: 1.329 ± 0.026
0.0ThrXaa: 0.0 ± 0.0
Val
10.604ValAla: 10.604 ± 0.087
0.802ValCys: 0.802 ± 0.026
5.114ValAsp: 5.114 ± 0.057
4.852ValGlu: 4.852 ± 0.053
2.463ValPhe: 2.463 ± 0.034
6.415ValGly: 6.415 ± 0.067
2.046ValHis: 2.046 ± 0.028
2.823ValIle: 2.823 ± 0.035
1.637ValLys: 1.637 ± 0.029
9.761ValLeu: 9.761 ± 0.087
1.423ValMet: 1.423 ± 0.03
1.639ValAsn: 1.639 ± 0.026
5.491ValPro: 5.491 ± 0.064
2.01ValGln: 2.01 ± 0.028
7.693ValArg: 7.693 ± 0.069
4.237ValSer: 4.237 ± 0.055
5.874ValThr: 5.874 ± 0.054
8.244ValVal: 8.244 ± 0.114
1.154ValTrp: 1.154 ± 0.026
1.565ValTyr: 1.565 ± 0.024
0.0ValXaa: 0.0 ± 0.0
Trp
1.612TrpAla: 1.612 ± 0.03
0.161TrpCys: 0.161 ± 0.008
0.825TrpAsp: 0.825 ± 0.022
0.765TrpGlu: 0.765 ± 0.021
0.486TrpPhe: 0.486 ± 0.013
1.038TrpGly: 1.038 ± 0.023
0.385TrpHis: 0.385 ± 0.013
0.528TrpIle: 0.528 ± 0.016
0.351TrpLys: 0.351 ± 0.012
1.736TrpLeu: 1.736 ± 0.029
0.294TrpMet: 0.294 ± 0.011
0.416TrpAsn: 0.416 ± 0.013
0.774TrpPro: 0.774 ± 0.018
0.614TrpGln: 0.614 ± 0.017
1.333TrpArg: 1.333 ± 0.025
0.892TrpSer: 0.892 ± 0.022
1.035TrpThr: 1.035 ± 0.021
0.951TrpVal: 0.951 ± 0.022
0.329TrpTrp: 0.329 ± 0.012
0.353TrpTyr: 0.353 ± 0.013
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.739TyrAla: 2.739 ± 0.035
0.179TyrCys: 0.179 ± 0.008
1.563TyrAsp: 1.563 ± 0.039
1.28TyrGlu: 1.28 ± 0.028
0.63TyrPhe: 0.63 ± 0.018
2.23TyrGly: 2.23 ± 0.036
0.409TyrHis: 0.409 ± 0.015
0.458TyrIle: 0.458 ± 0.014
0.375TyrLys: 0.375 ± 0.013
1.996TyrLeu: 1.996 ± 0.032
0.256TyrMet: 0.256 ± 0.013
0.358TyrAsn: 0.358 ± 0.014
1.043TyrPro: 1.043 ± 0.021
0.555TyrGln: 0.555 ± 0.018
1.856TyrArg: 1.856 ± 0.03
0.887TyrSer: 0.887 ± 0.023
1.15TyrThr: 1.15 ± 0.025
1.637TyrVal: 1.637 ± 0.034
0.357TyrTrp: 0.357 ± 0.015
0.433TyrTyr: 0.433 ± 0.015
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 6850 proteins (2296574 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