Amino acid dipepetide frequency for Streptomyces sp. 136MFCol5.1

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
20.619AlaAla: 20.619 ± 0.159
1.034AlaCys: 1.034 ± 0.021
8.229AlaAsp: 8.229 ± 0.072
8.34AlaGlu: 8.34 ± 0.097
3.457AlaPhe: 3.457 ± 0.043
12.646AlaGly: 12.646 ± 0.09
2.727AlaHis: 2.727 ± 0.037
3.658AlaIle: 3.658 ± 0.045
3.06AlaLys: 3.06 ± 0.049
13.77AlaLeu: 13.77 ± 0.105
2.622AlaMet: 2.622 ± 0.033
1.96AlaAsn: 1.96 ± 0.028
6.889AlaPro: 6.889 ± 0.083
3.824AlaGln: 3.824 ± 0.048
9.48AlaArg: 9.48 ± 0.082
5.973AlaSer: 5.973 ± 0.061
7.258AlaThr: 7.258 ± 0.066
12.265AlaVal: 12.265 ± 0.089
1.826AlaTrp: 1.826 ± 0.029
2.72AlaTyr: 2.72 ± 0.034
0.0AlaXaa: 0.0 ± 0.0
Cys
1.037CysAla: 1.037 ± 0.023
0.099CysCys: 0.099 ± 0.008
0.483CysAsp: 0.483 ± 0.013
0.389CysGlu: 0.389 ± 0.014
0.225CysPhe: 0.225 ± 0.01
0.934CysGly: 0.934 ± 0.02
0.193CysHis: 0.193 ± 0.009
0.204CysIle: 0.204 ± 0.01
0.115CysLys: 0.115 ± 0.008
0.705CysLeu: 0.705 ± 0.017
0.134CysMet: 0.134 ± 0.008
0.13CysAsn: 0.13 ± 0.008
0.455CysPro: 0.455 ± 0.017
0.149CysGln: 0.149 ± 0.008
0.581CysArg: 0.581 ± 0.019
0.443CysSer: 0.443 ± 0.016
0.538CysThr: 0.538 ± 0.015
0.627CysVal: 0.627 ± 0.018
0.139CysTrp: 0.139 ± 0.008
0.145CysTyr: 0.145 ± 0.008
0.0CysXaa: 0.0 ± 0.0
Asp
7.551AspAla: 7.551 ± 0.062
0.429AspCys: 0.429 ± 0.015
3.689AspAsp: 3.689 ± 0.047
3.935AspGlu: 3.935 ± 0.05
1.687AspPhe: 1.687 ± 0.025
6.523AspGly: 6.523 ± 0.058
1.396AspHis: 1.396 ± 0.026
2.067AspIle: 2.067 ± 0.033
1.287AspLys: 1.287 ± 0.031
5.976AspLeu: 5.976 ± 0.053
0.848AspMet: 0.848 ± 0.023
1.086AspAsn: 1.086 ± 0.027
4.455AspPro: 4.455 ± 0.044
1.59AspGln: 1.59 ± 0.029
4.985AspArg: 4.985 ± 0.047
2.771AspSer: 2.771 ± 0.037
3.295AspThr: 3.295 ± 0.039
4.581AspVal: 4.581 ± 0.044
1.037AspTrp: 1.037 ± 0.022
1.13AspTyr: 1.13 ± 0.028
0.0AspXaa: 0.0 ± 0.0
Glu
6.978GluAla: 6.978 ± 0.082
0.365GluCys: 0.365 ± 0.016
2.716GluAsp: 2.716 ± 0.043
3.325GluGlu: 3.325 ± 0.055
1.485GluPhe: 1.485 ± 0.031
4.097GluGly: 4.097 ± 0.041
1.413GluHis: 1.413 ± 0.027
2.323GluIle: 2.323 ± 0.04
1.496GluLys: 1.496 ± 0.033
6.692GluLeu: 6.692 ± 0.066
0.896GluMet: 0.896 ± 0.02
1.102GluAsn: 1.102 ± 0.022
3.248GluPro: 3.248 ± 0.049
2.317GluGln: 2.317 ± 0.04
5.056GluArg: 5.056 ± 0.058
2.68GluSer: 2.68 ± 0.037
2.89GluThr: 2.89 ± 0.037
4.263GluVal: 4.263 ± 0.054
0.762GluTrp: 0.762 ± 0.017
1.123GluTyr: 1.123 ± 0.021
0.0GluXaa: 0.0 ± 0.0
Phe
3.685PheAla: 3.685 ± 0.046
0.279PheCys: 0.279 ± 0.012
1.985PheAsp: 1.985 ± 0.03
1.399PheGlu: 1.399 ± 0.029
0.906PhePhe: 0.906 ± 0.024
3.158PheGly: 3.158 ± 0.04
0.601PheHis: 0.601 ± 0.015
0.863PheIle: 0.863 ± 0.019
0.562PheLys: 0.562 ± 0.017
2.585PheLeu: 2.585 ± 0.04
0.433PheMet: 0.433 ± 0.017
0.609PheAsn: 0.609 ± 0.018
1.411PhePro: 1.411 ± 0.024
0.693PheGln: 0.693 ± 0.018
1.823PheArg: 1.823 ± 0.025
1.531PheSer: 1.531 ± 0.027
2.095PheThr: 2.095 ± 0.029
2.232PheVal: 2.232 ± 0.036
0.464PheTrp: 0.464 ± 0.014
0.593PheTyr: 0.593 ± 0.018
0.0PheXaa: 0.0 ± 0.0
Gly
11.117GlyAla: 11.117 ± 0.083
0.835GlyCys: 0.835 ± 0.018
5.253GlyAsp: 5.253 ± 0.055
4.96GlyGlu: 4.96 ± 0.057
2.918GlyPhe: 2.918 ± 0.037
8.857GlyGly: 8.857 ± 0.094
2.288GlyHis: 2.288 ± 0.031
3.768GlyIle: 3.768 ± 0.045
2.625GlyLys: 2.625 ± 0.044
9.51GlyLeu: 9.51 ± 0.073
2.004GlyMet: 2.004 ± 0.032
1.926GlyAsn: 1.926 ± 0.033
5.036GlyPro: 5.036 ± 0.054
2.698GlyGln: 2.698 ± 0.041
7.616GlyArg: 7.616 ± 0.069
5.789GlySer: 5.789 ± 0.053
6.376GlyThr: 6.376 ± 0.059
7.376GlyVal: 7.376 ± 0.063
1.746GlyTrp: 1.746 ± 0.029
2.345GlyTyr: 2.345 ± 0.036
0.0GlyXaa: 0.0 ± 0.0
His
2.587HisAla: 2.587 ± 0.035
0.205HisCys: 0.205 ± 0.01
1.335HisAsp: 1.335 ± 0.023
1.178HisGlu: 1.178 ± 0.026
0.651HisPhe: 0.651 ± 0.019
2.444HisGly: 2.444 ± 0.033
0.669HisHis: 0.669 ± 0.02
0.74HisIle: 0.74 ± 0.019
0.358HisLys: 0.358 ± 0.012
2.293HisLeu: 2.293 ± 0.033
0.358HisMet: 0.358 ± 0.013
0.382HisAsn: 0.382 ± 0.013
1.765HisPro: 1.765 ± 0.028
0.65HisGln: 0.65 ± 0.016
2.056HisArg: 2.056 ± 0.034
1.085HisSer: 1.085 ± 0.022
1.364HisThr: 1.364 ± 0.025
1.634HisVal: 1.634 ± 0.031
0.376HisTrp: 0.376 ± 0.013
0.469HisTyr: 0.469 ± 0.015
0.0HisXaa: 0.0 ± 0.0
Ile
5.122IleAla: 5.122 ± 0.058
0.326IleCys: 0.326 ± 0.013
2.482IleAsp: 2.482 ± 0.038
2.127IleGlu: 2.127 ± 0.032
0.81IlePhe: 0.81 ± 0.021
3.963IleGly: 3.963 ± 0.044
0.668IleHis: 0.668 ± 0.02
1.017IleIle: 1.017 ± 0.027
0.831IleLys: 0.831 ± 0.024
2.582IleLeu: 2.582 ± 0.043
0.491IleMet: 0.491 ± 0.016
0.793IleAsn: 0.793 ± 0.022
1.9IlePro: 1.9 ± 0.032
0.801IleGln: 0.801 ± 0.02
2.349IleArg: 2.349 ± 0.036
1.892IleSer: 1.892 ± 0.036
2.378IleThr: 2.378 ± 0.035
2.917IleVal: 2.917 ± 0.039
0.469IleTrp: 0.469 ± 0.013
0.593IleTyr: 0.593 ± 0.016
0.0IleXaa: 0.0 ± 0.0
Lys
3.058LysAla: 3.058 ± 0.048
0.124LysCys: 0.124 ± 0.008
1.466LysAsp: 1.466 ± 0.032
1.25LysGlu: 1.25 ± 0.028
0.527LysPhe: 0.527 ± 0.016
2.006LysGly: 2.006 ± 0.039
0.483LysHis: 0.483 ± 0.015
0.961LysIle: 0.961 ± 0.022
0.991LysLys: 0.991 ± 0.033
2.218LysLeu: 2.218 ± 0.039
0.436LysMet: 0.436 ± 0.014
0.586LysAsn: 0.586 ± 0.017
1.424LysPro: 1.424 ± 0.029
0.787LysGln: 0.787 ± 0.021
1.526LysArg: 1.526 ± 0.031
1.279LysSer: 1.279 ± 0.024
1.364LysThr: 1.364 ± 0.03
2.059LysVal: 2.059 ± 0.042
0.304LysTrp: 0.304 ± 0.012
0.495LysTyr: 0.495 ± 0.015
0.0LysXaa: 0.0 ± 0.0
Leu
14.24LeuAla: 14.24 ± 0.102
0.807LeuCys: 0.807 ± 0.019
6.599LeuAsp: 6.599 ± 0.063
4.442LeuGlu: 4.442 ± 0.057
2.663LeuPhe: 2.663 ± 0.034
9.197LeuGly: 9.197 ± 0.084
2.255LeuHis: 2.255 ± 0.033
3.651LeuIle: 3.651 ± 0.054
2.138LeuLys: 2.138 ± 0.035
11.082LeuLeu: 11.082 ± 0.105
1.737LeuMet: 1.737 ± 0.028
1.765LeuAsn: 1.765 ± 0.027
6.247LeuPro: 6.247 ± 0.053
2.358LeuGln: 2.358 ± 0.032
8.026LeuArg: 8.026 ± 0.062
5.41LeuSer: 5.41 ± 0.053
6.743LeuThr: 6.743 ± 0.063
8.71LeuVal: 8.71 ± 0.065
1.283LeuTrp: 1.283 ± 0.023
1.855LeuTyr: 1.855 ± 0.028
0.0LeuXaa: 0.0 ± 0.0
Met
2.318MetAla: 2.318 ± 0.039
0.149MetCys: 0.149 ± 0.007
0.924MetAsp: 0.924 ± 0.02
0.761MetGlu: 0.761 ± 0.019
0.484MetPhe: 0.484 ± 0.017
1.423MetGly: 1.423 ± 0.024
0.382MetHis: 0.382 ± 0.013
0.725MetIle: 0.725 ± 0.023
0.472MetLys: 0.472 ± 0.016
1.749MetLeu: 1.749 ± 0.031
0.339MetMet: 0.339 ± 0.012
0.477MetAsn: 0.477 ± 0.015
1.155MetPro: 1.155 ± 0.025
0.512MetGln: 0.512 ± 0.017
1.427MetArg: 1.427 ± 0.027
1.429MetSer: 1.429 ± 0.024
1.618MetThr: 1.618 ± 0.024
1.384MetVal: 1.384 ± 0.028
0.216MetTrp: 0.216 ± 0.01
0.367MetTyr: 0.367 ± 0.012
0.0MetXaa: 0.0 ± 0.0
Asn
2.263AsnAla: 2.263 ± 0.034
0.166AsnCys: 0.166 ± 0.008
1.029AsnAsp: 1.029 ± 0.02
0.867AsnGlu: 0.867 ± 0.021
0.551AsnPhe: 0.551 ± 0.017
2.075AsnGly: 2.075 ± 0.041
0.434AsnHis: 0.434 ± 0.015
0.713AsnIle: 0.713 ± 0.019
0.481AsnLys: 0.481 ± 0.019
1.694AsnLeu: 1.694 ± 0.032
0.345AsnMet: 0.345 ± 0.013
0.46AsnAsn: 0.46 ± 0.017
1.363AsnPro: 1.363 ± 0.024
0.542AsnGln: 0.542 ± 0.016
1.362AsnArg: 1.362 ± 0.027
1.037AsnSer: 1.037 ± 0.024
1.191AsnThr: 1.191 ± 0.025
1.424AsnVal: 1.424 ± 0.028
0.325AsnTrp: 0.325 ± 0.013
0.464AsnTyr: 0.464 ± 0.016
0.0AsnXaa: 0.0 ± 0.0
Pro
8.154ProAla: 8.154 ± 0.081
0.308ProCys: 0.308 ± 0.012
4.373ProAsp: 4.373 ± 0.044
4.11ProGlu: 4.11 ± 0.048
1.558ProPhe: 1.558 ± 0.027
6.388ProGly: 6.388 ± 0.068
1.35ProHis: 1.35 ± 0.028
1.361ProIle: 1.361 ± 0.023
1.262ProLys: 1.262 ± 0.027
5.169ProLeu: 5.169 ± 0.062
1.062ProMet: 1.062 ± 0.02
0.946ProAsn: 0.946 ± 0.022
3.254ProPro: 3.254 ± 0.057
1.92ProGln: 1.92 ± 0.038
3.623ProArg: 3.623 ± 0.049
3.268ProSer: 3.268 ± 0.044
3.27ProThr: 3.27 ± 0.04
5.608ProVal: 5.608 ± 0.055
0.913ProTrp: 0.913 ± 0.019
1.454ProTyr: 1.454 ± 0.027
0.0ProXaa: 0.0 ± 0.0
Gln
3.694GlnAla: 3.694 ± 0.05
0.164GlnCys: 0.164 ± 0.008
1.474GlnAsp: 1.474 ± 0.031
1.489GlnGlu: 1.489 ± 0.032
0.743GlnPhe: 0.743 ± 0.021
2.442GlnGly: 2.442 ± 0.045
0.73GlnHis: 0.73 ± 0.019
1.237GlnIle: 1.237 ± 0.026
0.699GlnLys: 0.699 ± 0.019
3.282GlnLeu: 3.282 ± 0.036
0.559GlnMet: 0.559 ± 0.015
0.558GlnAsn: 0.558 ± 0.015
1.75GlnPro: 1.75 ± 0.032
1.422GlnGln: 1.422 ± 0.036
2.355GlnArg: 2.355 ± 0.036
1.348GlnSer: 1.348 ± 0.022
1.355GlnThr: 1.355 ± 0.026
2.389GlnVal: 2.389 ± 0.036
0.477GlnTrp: 0.477 ± 0.013
0.64GlnTyr: 0.64 ± 0.019
0.0GlnXaa: 0.0 ± 0.0
Arg
9.089ArgAla: 9.089 ± 0.078
0.546ArgCys: 0.546 ± 0.016
4.071ArgAsp: 4.071 ± 0.044
4.264ArgGlu: 4.264 ± 0.05
2.258ArgPhe: 2.258 ± 0.036
5.643ArgGly: 5.643 ± 0.056
1.963ArgHis: 1.963 ± 0.032
3.559ArgIle: 3.559 ± 0.038
1.764ArgLys: 1.764 ± 0.035
8.049ArgLeu: 8.049 ± 0.078
1.767ArgMet: 1.767 ± 0.032
1.498ArgAsn: 1.498 ± 0.025
4.605ArgPro: 4.605 ± 0.053
2.233ArgGln: 2.233 ± 0.034
7.262ArgArg: 7.262 ± 0.075
4.307ArgSer: 4.307 ± 0.042
5.753ArgThr: 5.753 ± 0.054
5.334ArgVal: 5.334 ± 0.056
1.324ArgTrp: 1.324 ± 0.028
1.766ArgTyr: 1.766 ± 0.029
0.0ArgXaa: 0.0 ± 0.0
Ser
6.947SerAla: 6.947 ± 0.063
0.44SerCys: 0.44 ± 0.015
2.953SerAsp: 2.953 ± 0.044
2.519SerGlu: 2.519 ± 0.035
1.634SerPhe: 1.634 ± 0.025
6.212SerGly: 6.212 ± 0.058
1.089SerHis: 1.089 ± 0.021
1.626SerIle: 1.626 ± 0.031
1.2SerLys: 1.2 ± 0.026
4.896SerLeu: 4.896 ± 0.047
1.175SerMet: 1.175 ± 0.025
0.944SerAsn: 0.944 ± 0.024
3.159SerPro: 3.159 ± 0.038
1.351SerGln: 1.351 ± 0.028
3.712SerArg: 3.712 ± 0.044
3.198SerSer: 3.198 ± 0.046
3.329SerThr: 3.329 ± 0.046
4.591SerVal: 4.591 ± 0.051
0.963SerTrp: 0.963 ± 0.022
1.336SerTyr: 1.336 ± 0.025
0.0SerXaa: 0.0 ± 0.0
Thr
8.958ThrAla: 8.958 ± 0.078
0.427ThrCys: 0.427 ± 0.015
3.96ThrAsp: 3.96 ± 0.042
3.323ThrGlu: 3.323 ± 0.039
1.703ThrPhe: 1.703 ± 0.03
6.982ThrGly: 6.982 ± 0.069
1.211ThrHis: 1.211 ± 0.021
1.822ThrIle: 1.822 ± 0.032
1.283ThrLys: 1.283 ± 0.027
5.794ThrLeu: 5.794 ± 0.052
0.998ThrMet: 0.998 ± 0.021
1.047ThrAsn: 1.047 ± 0.022
4.099ThrPro: 4.099 ± 0.05
1.426ThrGln: 1.426 ± 0.027
3.837ThrArg: 3.837 ± 0.045
3.339ThrSer: 3.339 ± 0.041
4.107ThrThr: 4.107 ± 0.056
6.368ThrVal: 6.368 ± 0.055
0.888ThrTrp: 0.888 ± 0.021
1.406ThrTyr: 1.406 ± 0.029
0.0ThrXaa: 0.0 ± 0.0
Val
10.573ValAla: 10.573 ± 0.076
0.718ValCys: 0.718 ± 0.019
4.945ValAsp: 4.945 ± 0.049
4.555ValGlu: 4.555 ± 0.051
2.429ValPhe: 2.429 ± 0.034
6.598ValGly: 6.598 ± 0.06
1.983ValHis: 1.983 ± 0.028
3.082ValIle: 3.082 ± 0.044
1.863ValLys: 1.863 ± 0.034
9.345ValLeu: 9.345 ± 0.07
1.523ValMet: 1.523 ± 0.029
1.645ValAsn: 1.645 ± 0.032
5.235ValPro: 5.235 ± 0.049
2.25ValGln: 2.25 ± 0.032
6.833ValArg: 6.833 ± 0.058
4.487ValSer: 4.487 ± 0.046
5.656ValThr: 5.656 ± 0.054
8.02ValVal: 8.02 ± 0.075
1.15ValTrp: 1.15 ± 0.024
1.597ValTyr: 1.597 ± 0.029
0.0ValXaa: 0.0 ± 0.0
Trp
1.632TrpAla: 1.632 ± 0.03
0.138TrpCys: 0.138 ± 0.008
0.837TrpAsp: 0.837 ± 0.022
0.708TrpGlu: 0.708 ± 0.018
0.534TrpPhe: 0.534 ± 0.018
1.115TrpGly: 1.115 ± 0.025
0.365TrpHis: 0.365 ± 0.011
0.576TrpIle: 0.576 ± 0.018
0.409TrpLys: 0.409 ± 0.013
1.743TrpLeu: 1.743 ± 0.028
0.31TrpMet: 0.31 ± 0.011
0.428TrpAsn: 0.428 ± 0.015
0.788TrpPro: 0.788 ± 0.018
0.672TrpGln: 0.672 ± 0.019
1.272TrpArg: 1.272 ± 0.026
0.987TrpSer: 0.987 ± 0.023
1.116TrpThr: 1.116 ± 0.022
1.015TrpVal: 1.015 ± 0.022
0.356TrpTrp: 0.356 ± 0.014
0.373TrpTyr: 0.373 ± 0.016
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.735TyrAla: 2.735 ± 0.037
0.167TyrCys: 0.167 ± 0.009
1.514TyrAsp: 1.514 ± 0.029
1.285TyrGlu: 1.285 ± 0.025
0.682TyrPhe: 0.682 ± 0.017
2.338TyrGly: 2.338 ± 0.037
0.399TyrHis: 0.399 ± 0.012
0.56TyrIle: 0.56 ± 0.016
0.45TyrLys: 0.45 ± 0.016
2.075TyrLeu: 2.075 ± 0.035
0.275TyrMet: 0.275 ± 0.013
0.443TyrAsn: 0.443 ± 0.016
1.112TyrPro: 1.112 ± 0.024
0.611TyrGln: 0.611 ± 0.015
1.874TyrArg: 1.874 ± 0.032
1.021TyrSer: 1.021 ± 0.025
1.282TyrThr: 1.282 ± 0.024
1.689TyrVal: 1.689 ± 0.027
0.358TyrTrp: 0.358 ± 0.014
0.467TyrTyr: 0.467 ± 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
0.004XaaXaa: 0.004 ± 0.004
Statistics based on 6901 proteins (2254472 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