Amino acid dipepetide frequency for Nocardioides iriomotensis

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
19.283AlaAla: 19.283 ± 0.169
1.006AlaCys: 1.006 ± 0.027
8.621AlaAsp: 8.621 ± 0.092
7.729AlaGlu: 7.729 ± 0.091
3.68AlaPhe: 3.68 ± 0.054
12.354AlaGly: 12.354 ± 0.095
2.659AlaHis: 2.659 ± 0.044
3.836AlaIle: 3.836 ± 0.055
2.507AlaLys: 2.507 ± 0.059
13.627AlaLeu: 13.627 ± 0.124
2.707AlaMet: 2.707 ± 0.043
1.892AlaAsn: 1.892 ± 0.036
6.061AlaPro: 6.061 ± 0.09
3.38AlaGln: 3.38 ± 0.05
9.724AlaArg: 9.724 ± 0.099
6.179AlaSer: 6.179 ± 0.065
7.718AlaThr: 7.718 ± 0.081
12.053AlaVal: 12.053 ± 0.122
2.119AlaTrp: 2.119 ± 0.037
2.429AlaTyr: 2.429 ± 0.04
0.0AlaXaa: 0.0 ± 0.0
Cys
0.856CysAla: 0.856 ± 0.028
0.097CysCys: 0.097 ± 0.008
0.479CysAsp: 0.479 ± 0.016
0.356CysGlu: 0.356 ± 0.017
0.225CysPhe: 0.225 ± 0.012
0.854CysGly: 0.854 ± 0.024
0.188CysHis: 0.188 ± 0.013
0.187CysIle: 0.187 ± 0.012
0.109CysLys: 0.109 ± 0.009
0.664CysLeu: 0.664 ± 0.022
0.105CysMet: 0.105 ± 0.009
0.137CysAsn: 0.137 ± 0.01
0.434CysPro: 0.434 ± 0.021
0.159CysGln: 0.159 ± 0.01
0.572CysArg: 0.572 ± 0.023
0.421CysSer: 0.421 ± 0.017
0.495CysThr: 0.495 ± 0.02
0.609CysVal: 0.609 ± 0.019
0.113CysTrp: 0.113 ± 0.008
0.151CysTyr: 0.151 ± 0.01
0.0CysXaa: 0.0 ± 0.0
Asp
8.505AspAla: 8.505 ± 0.09
0.385AspCys: 0.385 ± 0.017
5.162AspAsp: 5.162 ± 0.071
4.865AspGlu: 4.865 ± 0.068
1.635AspPhe: 1.635 ± 0.037
6.772AspGly: 6.772 ± 0.081
1.588AspHis: 1.588 ± 0.037
1.733AspIle: 1.733 ± 0.042
1.278AspLys: 1.278 ± 0.034
7.527AspLeu: 7.527 ± 0.076
0.889AspMet: 0.889 ± 0.025
1.072AspAsn: 1.072 ± 0.028
4.626AspPro: 4.626 ± 0.061
1.812AspGln: 1.812 ± 0.039
5.333AspArg: 5.333 ± 0.072
2.383AspSer: 2.383 ± 0.042
3.044AspThr: 3.044 ± 0.059
6.798AspVal: 6.798 ± 0.071
1.0AspTrp: 1.0 ± 0.026
1.271AspTyr: 1.271 ± 0.032
0.0AspXaa: 0.0 ± 0.0
Glu
7.186GluAla: 7.186 ± 0.085
0.31GluCys: 0.31 ± 0.013
3.068GluAsp: 3.068 ± 0.045
3.255GluGlu: 3.255 ± 0.057
1.343GluPhe: 1.343 ± 0.032
4.267GluGly: 4.267 ± 0.058
1.788GluHis: 1.788 ± 0.036
2.12GluIle: 2.12 ± 0.038
1.318GluLys: 1.318 ± 0.031
6.201GluLeu: 6.201 ± 0.08
1.001GluMet: 1.001 ± 0.023
0.894GluAsn: 0.894 ± 0.026
3.302GluPro: 3.302 ± 0.057
2.286GluGln: 2.286 ± 0.043
5.169GluArg: 5.169 ± 0.068
2.578GluSer: 2.578 ± 0.042
3.018GluThr: 3.018 ± 0.049
5.48GluVal: 5.48 ± 0.066
0.755GluTrp: 0.755 ± 0.023
0.994GluTyr: 0.994 ± 0.028
0.0GluXaa: 0.0 ± 0.0
Phe
3.71PheAla: 3.71 ± 0.059
0.24PheCys: 0.24 ± 0.013
2.137PheAsp: 2.137 ± 0.039
1.563PheGlu: 1.563 ± 0.035
0.892PhePhe: 0.892 ± 0.028
3.044PheGly: 3.044 ± 0.05
0.612PheHis: 0.612 ± 0.02
0.714PheIle: 0.714 ± 0.025
0.493PheLys: 0.493 ± 0.02
2.702PheLeu: 2.702 ± 0.051
0.46PheMet: 0.46 ± 0.019
0.572PheAsn: 0.572 ± 0.022
1.39PhePro: 1.39 ± 0.03
0.667PheGln: 0.667 ± 0.023
1.821PheArg: 1.821 ± 0.037
1.45PheSer: 1.45 ± 0.033
1.876PheThr: 1.876 ± 0.047
2.868PheVal: 2.868 ± 0.05
0.431PheTrp: 0.431 ± 0.019
0.643PheTyr: 0.643 ± 0.022
0.0PheXaa: 0.0 ± 0.0
Gly
10.163GlyAla: 10.163 ± 0.109
0.828GlyCys: 0.828 ± 0.026
5.895GlyAsp: 5.895 ± 0.076
4.959GlyGlu: 4.959 ± 0.063
3.035GlyPhe: 3.035 ± 0.05
8.298GlyGly: 8.298 ± 0.094
2.207GlyHis: 2.207 ± 0.044
3.348GlyIle: 3.348 ± 0.05
2.059GlyLys: 2.059 ± 0.039
9.621GlyLeu: 9.621 ± 0.105
1.915GlyMet: 1.915 ± 0.034
1.714GlyAsn: 1.714 ± 0.041
4.478GlyPro: 4.478 ± 0.062
2.456GlyGln: 2.456 ± 0.04
7.418GlyArg: 7.418 ± 0.085
5.4GlySer: 5.4 ± 0.066
5.948GlyThr: 5.948 ± 0.069
8.351GlyVal: 8.351 ± 0.083
1.862GlyTrp: 1.862 ± 0.038
2.306GlyTyr: 2.306 ± 0.045
0.0GlyXaa: 0.0 ± 0.0
His
2.72HisAla: 2.72 ± 0.044
0.163HisCys: 0.163 ± 0.011
1.735HisAsp: 1.735 ± 0.034
1.344HisGlu: 1.344 ± 0.033
0.571HisPhe: 0.571 ± 0.021
2.318HisGly: 2.318 ± 0.04
0.683HisHis: 0.683 ± 0.023
0.459HisIle: 0.459 ± 0.019
0.331HisLys: 0.331 ± 0.016
2.445HisLeu: 2.445 ± 0.044
0.299HisMet: 0.299 ± 0.015
0.367HisAsn: 0.367 ± 0.017
1.625HisPro: 1.625 ± 0.038
0.64HisGln: 0.64 ± 0.023
1.988HisArg: 1.988 ± 0.038
0.819HisSer: 0.819 ± 0.022
1.088HisThr: 1.088 ± 0.026
2.295HisVal: 2.295 ± 0.042
0.35HisTrp: 0.35 ± 0.016
0.442HisTyr: 0.442 ± 0.018
0.0HisXaa: 0.0 ± 0.0
Ile
4.355IleAla: 4.355 ± 0.062
0.264IleCys: 0.264 ± 0.014
2.405IleAsp: 2.405 ± 0.042
1.991IleGlu: 1.991 ± 0.047
0.791IlePhe: 0.791 ± 0.026
3.398IleGly: 3.398 ± 0.051
0.579IleHis: 0.579 ± 0.02
0.836IleIle: 0.836 ± 0.031
0.649IleLys: 0.649 ± 0.026
2.372IleLeu: 2.372 ± 0.045
0.418IleMet: 0.418 ± 0.015
0.658IleAsn: 0.658 ± 0.026
1.597IlePro: 1.597 ± 0.034
0.692IleGln: 0.692 ± 0.021
2.031IleArg: 2.031 ± 0.043
1.604IleSer: 1.604 ± 0.037
1.921IleThr: 1.921 ± 0.034
2.931IleVal: 2.931 ± 0.055
0.378IleTrp: 0.378 ± 0.017
0.501IleTyr: 0.501 ± 0.02
0.0IleXaa: 0.0 ± 0.0
Lys
2.545LysAla: 2.545 ± 0.058
0.083LysCys: 0.083 ± 0.008
1.156LysAsp: 1.156 ± 0.034
1.054LysGlu: 1.054 ± 0.032
0.473LysPhe: 0.473 ± 0.019
1.59LysGly: 1.59 ± 0.036
0.484LysHis: 0.484 ± 0.018
0.753LysIle: 0.753 ± 0.029
0.805LysLys: 0.805 ± 0.044
1.655LysLeu: 1.655 ± 0.037
0.344LysMet: 0.344 ± 0.016
0.409LysAsn: 0.409 ± 0.019
1.21LysPro: 1.21 ± 0.033
0.709LysGln: 0.709 ± 0.025
1.436LysArg: 1.436 ± 0.036
0.97LysSer: 0.97 ± 0.03
1.166LysThr: 1.166 ± 0.031
2.039LysVal: 2.039 ± 0.045
0.202LysTrp: 0.202 ± 0.011
0.418LysTyr: 0.418 ± 0.019
0.0LysXaa: 0.0 ± 0.0
Leu
14.989LeuAla: 14.989 ± 0.119
0.691LeuCys: 0.691 ± 0.021
7.652LeuAsp: 7.652 ± 0.094
5.111LeuGlu: 5.111 ± 0.064
2.552LeuPhe: 2.552 ± 0.046
9.614LeuGly: 9.614 ± 0.107
2.201LeuHis: 2.201 ± 0.043
2.563LeuIle: 2.563 ± 0.048
1.681LeuLys: 1.681 ± 0.035
11.133LeuLeu: 11.133 ± 0.14
1.687LeuMet: 1.687 ± 0.037
1.553LeuAsn: 1.553 ± 0.039
5.832LeuPro: 5.832 ± 0.077
2.314LeuGln: 2.314 ± 0.04
7.929LeuArg: 7.929 ± 0.074
5.118LeuSer: 5.118 ± 0.069
6.391LeuThr: 6.391 ± 0.068
11.308LeuVal: 11.308 ± 0.115
1.248LeuTrp: 1.248 ± 0.033
1.659LeuTyr: 1.659 ± 0.039
0.0LeuXaa: 0.0 ± 0.0
Met
2.239MetAla: 2.239 ± 0.041
0.132MetCys: 0.132 ± 0.009
0.847MetAsp: 0.847 ± 0.027
0.739MetGlu: 0.739 ± 0.023
0.552MetPhe: 0.552 ± 0.021
1.335MetGly: 1.335 ± 0.03
0.398MetHis: 0.398 ± 0.015
0.604MetIle: 0.604 ± 0.024
0.43MetLys: 0.43 ± 0.017
1.902MetLeu: 1.902 ± 0.039
0.324MetMet: 0.324 ± 0.018
0.39MetAsn: 0.39 ± 0.015
1.166MetPro: 1.166 ± 0.03
0.486MetGln: 0.486 ± 0.019
1.529MetArg: 1.529 ± 0.035
1.457MetSer: 1.457 ± 0.031
1.756MetThr: 1.756 ± 0.035
1.533MetVal: 1.533 ± 0.032
0.2MetTrp: 0.2 ± 0.013
0.289MetTyr: 0.289 ± 0.015
0.0MetXaa: 0.0 ± 0.0
Asn
2.132AsnAla: 2.132 ± 0.043
0.137AsnCys: 0.137 ± 0.009
1.13AsnAsp: 1.13 ± 0.032
0.804AsnGlu: 0.804 ± 0.024
0.479AsnPhe: 0.479 ± 0.019
1.702AsnGly: 1.702 ± 0.041
0.368AsnHis: 0.368 ± 0.019
0.607AsnIle: 0.607 ± 0.022
0.356AsnLys: 0.356 ± 0.017
1.747AsnLeu: 1.747 ± 0.037
0.256AsnMet: 0.256 ± 0.014
0.395AsnAsn: 0.395 ± 0.019
1.316AsnPro: 1.316 ± 0.031
0.517AsnGln: 0.517 ± 0.017
1.262AsnArg: 1.262 ± 0.03
0.692AsnSer: 0.692 ± 0.025
0.98AsnThr: 0.98 ± 0.028
1.562AsnVal: 1.562 ± 0.036
0.235AsnTrp: 0.235 ± 0.014
0.367AsnTyr: 0.367 ± 0.018
0.0AsnXaa: 0.0 ± 0.0
Pro
7.408ProAla: 7.408 ± 0.08
0.303ProCys: 0.303 ± 0.016
4.673ProAsp: 4.673 ± 0.055
3.88ProGlu: 3.88 ± 0.054
1.599ProPhe: 1.599 ± 0.028
5.862ProGly: 5.862 ± 0.068
1.261ProHis: 1.261 ± 0.031
1.433ProIle: 1.433 ± 0.031
0.963ProLys: 0.963 ± 0.028
4.825ProLeu: 4.825 ± 0.061
1.038ProMet: 1.038 ± 0.029
0.816ProAsn: 0.816 ± 0.025
3.003ProPro: 3.003 ± 0.052
1.435ProGln: 1.435 ± 0.032
3.766ProArg: 3.766 ± 0.059
3.048ProSer: 3.048 ± 0.045
3.626ProThr: 3.626 ± 0.06
5.345ProVal: 5.345 ± 0.062
0.931ProTrp: 0.931 ± 0.022
1.212ProTyr: 1.212 ± 0.032
0.0ProXaa: 0.0 ± 0.0
Gln
3.366GlnAla: 3.366 ± 0.048
0.139GlnCys: 0.139 ± 0.01
1.431GlnAsp: 1.431 ± 0.029
1.381GlnGlu: 1.381 ± 0.031
0.661GlnPhe: 0.661 ± 0.021
2.132GlnGly: 2.132 ± 0.038
0.675GlnHis: 0.675 ± 0.025
0.959GlnIle: 0.959 ± 0.029
0.584GlnLys: 0.584 ± 0.022
2.766GlnLeu: 2.766 ± 0.046
0.553GlnMet: 0.553 ± 0.022
0.399GlnAsn: 0.399 ± 0.018
1.639GlnPro: 1.639 ± 0.039
1.102GlnGln: 1.102 ± 0.031
2.456GlnArg: 2.456 ± 0.039
1.149GlnSer: 1.149 ± 0.027
1.388GlnThr: 1.388 ± 0.031
2.967GlnVal: 2.967 ± 0.048
0.416GlnTrp: 0.416 ± 0.017
0.522GlnTyr: 0.522 ± 0.02
0.0GlnXaa: 0.0 ± 0.0
Arg
9.12ArgAla: 9.12 ± 0.095
0.555ArgCys: 0.555 ± 0.023
4.901ArgAsp: 4.901 ± 0.06
4.552ArgGlu: 4.552 ± 0.06
2.351ArgPhe: 2.351 ± 0.039
5.94ArgGly: 5.94 ± 0.071
1.961ArgHis: 1.961 ± 0.039
2.822ArgIle: 2.822 ± 0.046
1.461ArgLys: 1.461 ± 0.037
8.493ArgLeu: 8.493 ± 0.097
1.85ArgMet: 1.85 ± 0.036
1.265ArgAsn: 1.265 ± 0.03
4.524ArgPro: 4.524 ± 0.064
2.108ArgGln: 2.108 ± 0.038
7.783ArgArg: 7.783 ± 0.094
4.148ArgSer: 4.148 ± 0.051
4.883ArgThr: 4.883 ± 0.064
6.716ArgVal: 6.716 ± 0.075
1.429ArgTrp: 1.429 ± 0.03
1.769ArgTyr: 1.769 ± 0.037
0.0ArgXaa: 0.0 ± 0.0
Ser
5.954SerAla: 5.954 ± 0.064
0.389SerCys: 0.389 ± 0.02
2.968SerAsp: 2.968 ± 0.044
2.307SerGlu: 2.307 ± 0.046
1.737SerPhe: 1.737 ± 0.034
5.494SerGly: 5.494 ± 0.06
1.019SerHis: 1.019 ± 0.029
1.606SerIle: 1.606 ± 0.036
0.934SerLys: 0.934 ± 0.029
5.003SerLeu: 5.003 ± 0.063
1.217SerMet: 1.217 ± 0.03
0.959SerAsn: 0.959 ± 0.029
3.042SerPro: 3.042 ± 0.048
1.236SerGln: 1.236 ± 0.03
3.839SerArg: 3.839 ± 0.062
3.033SerSer: 3.033 ± 0.048
3.361SerThr: 3.361 ± 0.046
4.464SerVal: 4.464 ± 0.056
0.951SerTrp: 0.951 ± 0.027
1.288SerTyr: 1.288 ± 0.028
0.0SerXaa: 0.0 ± 0.0
Thr
7.508ThrAla: 7.508 ± 0.068
0.474ThrCys: 0.474 ± 0.019
3.843ThrAsp: 3.843 ± 0.05
2.958ThrGlu: 2.958 ± 0.049
1.967ThrPhe: 1.967 ± 0.04
6.083ThrGly: 6.083 ± 0.07
1.226ThrHis: 1.226 ± 0.033
2.065ThrIle: 2.065 ± 0.044
1.144ThrLys: 1.144 ± 0.031
5.888ThrLeu: 5.888 ± 0.072
1.073ThrMet: 1.073 ± 0.029
1.074ThrAsn: 1.074 ± 0.032
3.941ThrPro: 3.941 ± 0.055
1.348ThrGln: 1.348 ± 0.028
4.162ThrArg: 4.162 ± 0.063
3.534ThrSer: 3.534 ± 0.053
4.215ThrThr: 4.215 ± 0.063
6.142ThrVal: 6.142 ± 0.076
1.091ThrTrp: 1.091 ± 0.031
1.437ThrTyr: 1.437 ± 0.034
0.0ThrXaa: 0.0 ± 0.0
Val
13.245ValAla: 13.245 ± 0.122
0.696ValCys: 0.696 ± 0.023
6.914ValAsp: 6.914 ± 0.076
5.76ValGlu: 5.76 ± 0.062
2.538ValPhe: 2.538 ± 0.044
8.12ValGly: 8.12 ± 0.095
2.057ValHis: 2.057 ± 0.04
2.836ValIle: 2.836 ± 0.048
1.705ValLys: 1.705 ± 0.033
10.605ValLeu: 10.605 ± 0.109
1.607ValMet: 1.607 ± 0.034
1.742ValAsn: 1.742 ± 0.035
5.42ValPro: 5.42 ± 0.066
2.221ValGln: 2.221 ± 0.045
7.482ValArg: 7.482 ± 0.075
4.898ValSer: 4.898 ± 0.062
6.225ValThr: 6.225 ± 0.082
11.301ValVal: 11.301 ± 0.116
1.197ValTrp: 1.197 ± 0.028
1.574ValTyr: 1.574 ± 0.033
0.0ValXaa: 0.0 ± 0.0
Trp
1.671TrpAla: 1.671 ± 0.034
0.162TrpCys: 0.162 ± 0.012
0.898TrpAsp: 0.898 ± 0.028
0.683TrpGlu: 0.683 ± 0.023
0.57TrpPhe: 0.57 ± 0.022
1.072TrpGly: 1.072 ± 0.03
0.374TrpHis: 0.374 ± 0.016
0.47TrpIle: 0.47 ± 0.017
0.336TrpLys: 0.336 ± 0.018
1.869TrpLeu: 1.869 ± 0.041
0.334TrpMet: 0.334 ± 0.017
0.356TrpAsn: 0.356 ± 0.017
0.771TrpPro: 0.771 ± 0.024
0.573TrpGln: 0.573 ± 0.019
1.352TrpArg: 1.352 ± 0.03
1.01TrpSer: 1.01 ± 0.025
1.05TrpThr: 1.05 ± 0.027
1.349TrpVal: 1.349 ± 0.031
0.4TrpTrp: 0.4 ± 0.016
0.329TrpTyr: 0.329 ± 0.016
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.611TyrAla: 2.611 ± 0.048
0.158TyrCys: 0.158 ± 0.012
1.761TyrAsp: 1.761 ± 0.042
1.04TyrGlu: 1.04 ± 0.031
0.634TyrPhe: 0.634 ± 0.023
2.012TyrGly: 2.012 ± 0.038
0.354TyrHis: 0.354 ± 0.015
0.423TyrIle: 0.423 ± 0.018
0.358TyrLys: 0.358 ± 0.017
2.179TyrLeu: 2.179 ± 0.038
0.231TyrMet: 0.231 ± 0.013
0.38TyrAsn: 0.38 ± 0.017
1.048TyrPro: 1.048 ± 0.028
0.543TyrGln: 0.543 ± 0.02
1.579TyrArg: 1.579 ± 0.034
0.911TyrSer: 0.911 ± 0.026
1.024TyrThr: 1.024 ± 0.032
2.034TyrVal: 2.034 ± 0.038
0.322TyrTrp: 0.322 ± 0.016
0.445TyrTyr: 0.445 ± 0.021
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 4477 proteins (1426832 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