Amino acid dipepetide frequency for Paracoccus saliphilus

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
15.606AlaAla: 15.606 ± 0.144
1.09AlaCys: 1.09 ± 0.033
6.64AlaAsp: 6.64 ± 0.078
8.646AlaGlu: 8.646 ± 0.105
3.935AlaPhe: 3.935 ± 0.057
10.488AlaGly: 10.488 ± 0.101
2.253AlaHis: 2.253 ± 0.046
6.442AlaIle: 6.442 ± 0.083
3.405AlaLys: 3.405 ± 0.057
12.892AlaLeu: 12.892 ± 0.126
4.021AlaMet: 4.021 ± 0.063
2.647AlaAsn: 2.647 ± 0.048
5.349AlaPro: 5.349 ± 0.067
4.059AlaGln: 4.059 ± 0.063
8.714AlaArg: 8.714 ± 0.101
5.847AlaSer: 5.847 ± 0.065
5.608AlaThr: 5.608 ± 0.064
8.043AlaVal: 8.043 ± 0.084
1.383AlaTrp: 1.383 ± 0.032
2.327AlaTyr: 2.327 ± 0.047
0.0AlaXaa: 0.0 ± 0.0
Cys
0.994CysAla: 0.994 ± 0.027
0.122CysCys: 0.122 ± 0.01
0.578CysAsp: 0.578 ± 0.023
0.46CysGlu: 0.46 ± 0.02
0.361CysPhe: 0.361 ± 0.016
0.97CysGly: 0.97 ± 0.029
0.277CysHis: 0.277 ± 0.015
0.396CysIle: 0.396 ± 0.015
0.195CysLys: 0.195 ± 0.011
0.87CysLeu: 0.87 ± 0.025
0.179CysMet: 0.179 ± 0.012
0.21CysAsn: 0.21 ± 0.014
0.509CysPro: 0.509 ± 0.02
0.228CysGln: 0.228 ± 0.013
0.6CysArg: 0.6 ± 0.02
0.485CysSer: 0.485 ± 0.02
0.392CysThr: 0.392 ± 0.02
0.601CysVal: 0.601 ± 0.022
0.117CysTrp: 0.117 ± 0.01
0.198CysTyr: 0.198 ± 0.011
0.0CysXaa: 0.0 ± 0.0
Asp
6.702AspAla: 6.702 ± 0.085
0.521AspCys: 0.521 ± 0.021
3.427AspAsp: 3.427 ± 0.064
3.851AspGlu: 3.851 ± 0.063
2.263AspPhe: 2.263 ± 0.043
5.443AspGly: 5.443 ± 0.076
1.455AspHis: 1.455 ± 0.037
3.223AspIle: 3.223 ± 0.052
1.604AspLys: 1.604 ± 0.04
6.276AspLeu: 6.276 ± 0.074
1.635AspMet: 1.635 ± 0.031
1.367AspAsn: 1.367 ± 0.032
3.744AspPro: 3.744 ± 0.058
1.923AspGln: 1.923 ± 0.038
4.574AspArg: 4.574 ± 0.064
2.572AspSer: 2.572 ± 0.043
2.519AspThr: 2.519 ± 0.049
3.661AspVal: 3.661 ± 0.057
1.183AspTrp: 1.183 ± 0.03
1.537AspTyr: 1.537 ± 0.035
0.0AspXaa: 0.0 ± 0.0
Glu
8.291GluAla: 8.291 ± 0.094
0.385GluCys: 0.385 ± 0.017
3.449GluAsp: 3.449 ± 0.057
3.838GluGlu: 3.838 ± 0.083
2.012GluPhe: 2.012 ± 0.035
5.101GluGly: 5.101 ± 0.058
1.201GluHis: 1.201 ± 0.031
4.037GluIle: 4.037 ± 0.061
2.12GluLys: 2.12 ± 0.048
5.835GluLeu: 5.835 ± 0.072
2.035GluMet: 2.035 ± 0.033
1.858GluAsn: 1.858 ± 0.037
2.774GluPro: 2.774 ± 0.044
2.117GluGln: 2.117 ± 0.041
4.534GluArg: 4.534 ± 0.064
2.5GluSer: 2.5 ± 0.04
3.777GluThr: 3.777 ± 0.057
4.024GluVal: 4.024 ± 0.065
0.869GluTrp: 0.869 ± 0.025
1.207GluTyr: 1.207 ± 0.031
0.0GluXaa: 0.0 ± 0.0
Phe
4.182PheAla: 4.182 ± 0.065
0.39PheCys: 0.39 ± 0.017
2.699PheAsp: 2.699 ± 0.047
2.055PheGlu: 2.055 ± 0.037
1.347PhePhe: 1.347 ± 0.04
3.683PheGly: 3.683 ± 0.058
0.794PheHis: 0.794 ± 0.025
1.787PheIle: 1.787 ± 0.045
0.815PheLys: 0.815 ± 0.027
3.359PheLeu: 3.359 ± 0.059
0.928PheMet: 0.928 ± 0.032
1.012PheAsn: 1.012 ± 0.027
1.693PhePro: 1.693 ± 0.038
0.992PheGln: 0.992 ± 0.028
2.331PheArg: 2.331 ± 0.045
2.128PheSer: 2.128 ± 0.038
2.121PheThr: 2.121 ± 0.044
2.5PheVal: 2.5 ± 0.043
0.613PheTrp: 0.613 ± 0.024
0.837PheTyr: 0.837 ± 0.027
0.0PheXaa: 0.0 ± 0.0
Gly
9.296GlyAla: 9.296 ± 0.091
0.868GlyCys: 0.868 ± 0.027
4.681GlyAsp: 4.681 ± 0.067
5.15GlyGlu: 5.15 ± 0.065
3.739GlyPhe: 3.739 ± 0.058
7.515GlyGly: 7.515 ± 0.111
1.986GlyHis: 1.986 ± 0.041
4.994GlyIle: 4.994 ± 0.063
3.245GlyLys: 3.245 ± 0.045
9.392GlyLeu: 9.392 ± 0.09
2.826GlyMet: 2.826 ± 0.054
2.253GlyAsn: 2.253 ± 0.049
3.719GlyPro: 3.719 ± 0.056
3.275GlyGln: 3.275 ± 0.056
5.971GlyArg: 5.971 ± 0.078
4.509GlySer: 4.509 ± 0.062
4.471GlyThr: 4.471 ± 0.069
6.047GlyVal: 6.047 ± 0.074
1.565GlyTrp: 1.565 ± 0.035
2.269GlyTyr: 2.269 ± 0.039
0.0GlyXaa: 0.0 ± 0.0
His
2.293HisAla: 2.293 ± 0.045
0.236HisCys: 0.236 ± 0.014
1.38HisAsp: 1.38 ± 0.034
1.185HisGlu: 1.185 ± 0.032
0.861HisPhe: 0.861 ± 0.023
2.053HisGly: 2.053 ± 0.042
0.573HisHis: 0.573 ± 0.025
1.04HisIle: 1.04 ± 0.025
0.495HisLys: 0.495 ± 0.019
2.169HisLeu: 2.169 ± 0.039
0.581HisMet: 0.581 ± 0.021
0.465HisAsn: 0.465 ± 0.019
1.477HisPro: 1.477 ± 0.031
0.622HisGln: 0.622 ± 0.022
1.516HisArg: 1.516 ± 0.038
0.981HisSer: 0.981 ± 0.027
0.694HisThr: 0.694 ± 0.021
1.524HisVal: 1.524 ± 0.031
0.341HisTrp: 0.341 ± 0.018
0.56HisTyr: 0.56 ± 0.024
0.0HisXaa: 0.0 ± 0.0
Ile
7.547IleAla: 7.547 ± 0.09
0.661IleCys: 0.661 ± 0.024
3.618IleAsp: 3.618 ± 0.054
3.783IleGlu: 3.783 ± 0.058
1.964IlePhe: 1.964 ± 0.037
5.404IleGly: 5.404 ± 0.067
1.028IleHis: 1.028 ± 0.024
2.526IleIle: 2.526 ± 0.051
1.222IleLys: 1.222 ± 0.03
5.124IleLeu: 5.124 ± 0.077
1.228IleMet: 1.228 ± 0.034
1.317IleAsn: 1.317 ± 0.032
2.626IlePro: 2.626 ± 0.045
1.202IleGln: 1.202 ± 0.031
3.978IleArg: 3.978 ± 0.058
3.405IleSer: 3.405 ± 0.05
3.019IleThr: 3.019 ± 0.046
3.896IleVal: 3.896 ± 0.058
0.859IleTrp: 0.859 ± 0.025
1.217IleTyr: 1.217 ± 0.031
0.0IleXaa: 0.0 ± 0.0
Lys
3.501LysAla: 3.501 ± 0.058
0.163LysCys: 0.163 ± 0.012
1.59LysAsp: 1.59 ± 0.038
1.525LysGlu: 1.525 ± 0.037
0.838LysPhe: 0.838 ± 0.028
2.471LysGly: 2.471 ± 0.047
0.597LysHis: 0.597 ± 0.021
1.614LysIle: 1.614 ± 0.034
1.009LysLys: 1.009 ± 0.029
3.027LysLeu: 3.027 ± 0.053
0.767LysMet: 0.767 ± 0.026
0.782LysAsn: 0.782 ± 0.025
1.811LysPro: 1.811 ± 0.04
0.92LysGln: 0.92 ± 0.027
2.096LysArg: 2.096 ± 0.045
1.739LysSer: 1.739 ± 0.042
1.675LysThr: 1.675 ± 0.036
1.968LysVal: 1.968 ± 0.042
0.364LysTrp: 0.364 ± 0.016
0.597LysTyr: 0.597 ± 0.018
0.0LysXaa: 0.0 ± 0.0
Leu
13.003LeuAla: 13.003 ± 0.116
0.964LeuCys: 0.964 ± 0.026
5.982LeuAsp: 5.982 ± 0.074
5.286LeuGlu: 5.286 ± 0.057
3.505LeuPhe: 3.505 ± 0.064
8.323LeuGly: 8.323 ± 0.091
1.957LeuHis: 1.957 ± 0.043
5.745LeuIle: 5.745 ± 0.087
2.915LeuLys: 2.915 ± 0.043
9.194LeuLeu: 9.194 ± 0.119
2.689LeuMet: 2.689 ± 0.051
2.762LeuAsn: 2.762 ± 0.046
6.041LeuPro: 6.041 ± 0.083
2.826LeuGln: 2.826 ± 0.047
7.36LeuArg: 7.36 ± 0.076
6.59LeuSer: 6.59 ± 0.078
6.103LeuThr: 6.103 ± 0.072
6.665LeuVal: 6.665 ± 0.068
1.252LeuTrp: 1.252 ± 0.031
1.907LeuTyr: 1.907 ± 0.04
0.0LeuXaa: 0.0 ± 0.0
Met
3.589MetAla: 3.589 ± 0.051
0.17MetCys: 0.17 ± 0.011
1.423MetAsp: 1.423 ± 0.034
1.392MetGlu: 1.392 ± 0.033
0.874MetPhe: 0.874 ± 0.025
2.312MetGly: 2.312 ± 0.042
0.48MetHis: 0.48 ± 0.02
1.789MetIle: 1.789 ± 0.043
1.036MetLys: 1.036 ± 0.029
2.875MetLeu: 2.875 ± 0.052
0.793MetMet: 0.793 ± 0.026
0.934MetAsn: 0.934 ± 0.027
1.635MetPro: 1.635 ± 0.033
0.989MetGln: 0.989 ± 0.03
2.1MetArg: 2.1 ± 0.033
1.838MetSer: 1.838 ± 0.036
2.145MetThr: 2.145 ± 0.042
1.878MetVal: 1.878 ± 0.036
0.233MetTrp: 0.233 ± 0.012
0.325MetTyr: 0.325 ± 0.016
0.0MetXaa: 0.0 ± 0.0
Asn
2.961AsnAla: 2.961 ± 0.047
0.294AsnCys: 0.294 ± 0.013
1.45AsnAsp: 1.45 ± 0.039
1.328AsnGlu: 1.328 ± 0.034
0.983AsnPhe: 0.983 ± 0.026
2.313AsnGly: 2.313 ± 0.045
0.542AsnHis: 0.542 ± 0.017
1.491AsnIle: 1.491 ± 0.026
0.643AsnLys: 0.643 ± 0.021
2.613AsnLeu: 2.613 ± 0.039
0.702AsnMet: 0.702 ± 0.023
0.683AsnAsn: 0.683 ± 0.026
1.877AsnPro: 1.877 ± 0.037
0.749AsnGln: 0.749 ± 0.022
1.971AsnArg: 1.971 ± 0.036
1.39AsnSer: 1.39 ± 0.034
1.216AsnThr: 1.216 ± 0.032
1.775AsnVal: 1.775 ± 0.035
0.49AsnTrp: 0.49 ± 0.02
0.643AsnTyr: 0.643 ± 0.02
0.0AsnXaa: 0.0 ± 0.0
Pro
5.87ProAla: 5.87 ± 0.083
0.338ProCys: 0.338 ± 0.015
4.053ProAsp: 4.053 ± 0.056
4.514ProGlu: 4.514 ± 0.056
1.893ProPhe: 1.893 ± 0.033
4.825ProGly: 4.825 ± 0.061
1.137ProHis: 1.137 ± 0.031
2.417ProIle: 2.417 ± 0.049
1.495ProLys: 1.495 ± 0.034
4.699ProLeu: 4.699 ± 0.059
1.399ProMet: 1.399 ± 0.035
1.251ProAsn: 1.251 ± 0.028
2.439ProPro: 2.439 ± 0.046
1.708ProGln: 1.708 ± 0.035
2.999ProArg: 2.999 ± 0.053
2.687ProSer: 2.687 ± 0.049
2.262ProThr: 2.262 ± 0.044
4.384ProVal: 4.384 ± 0.056
0.706ProTrp: 0.706 ± 0.023
1.118ProTyr: 1.118 ± 0.033
0.0ProXaa: 0.0 ± 0.0
Gln
4.036GlnAla: 4.036 ± 0.063
0.193GlnCys: 0.193 ± 0.012
1.681GlnAsp: 1.681 ± 0.043
1.718GlnGlu: 1.718 ± 0.041
1.022GlnPhe: 1.022 ± 0.024
2.687GlnGly: 2.687 ± 0.044
0.63GlnHis: 0.63 ± 0.021
2.08GlnIle: 2.08 ± 0.043
1.024GlnLys: 1.024 ± 0.032
2.917GlnLeu: 2.917 ± 0.049
1.115GlnMet: 1.115 ± 0.028
0.905GlnAsn: 0.905 ± 0.023
1.789GlnPro: 1.789 ± 0.034
1.188GlnGln: 1.188 ± 0.035
2.231GlnArg: 2.231 ± 0.041
1.742GlnSer: 1.742 ± 0.034
1.63GlnThr: 1.63 ± 0.037
2.356GlnVal: 2.356 ± 0.041
0.396GlnTrp: 0.396 ± 0.016
0.567GlnTyr: 0.567 ± 0.021
0.0GlnXaa: 0.0 ± 0.0
Arg
7.818ArgAla: 7.818 ± 0.088
0.535ArgCys: 0.535 ± 0.023
4.45ArgAsp: 4.45 ± 0.069
4.411ArgGlu: 4.411 ± 0.063
2.687ArgPhe: 2.687 ± 0.05
4.841ArgGly: 4.841 ± 0.063
1.79ArgHis: 1.79 ± 0.039
4.433ArgIle: 4.433 ± 0.062
2.34ArgLys: 2.34 ± 0.049
7.903ArgLeu: 7.903 ± 0.092
2.219ArgMet: 2.219 ± 0.04
2.031ArgAsn: 2.031 ± 0.034
3.505ArgPro: 3.505 ± 0.059
2.641ArgGln: 2.641 ± 0.047
5.333ArgArg: 5.333 ± 0.083
3.489ArgSer: 3.489 ± 0.047
2.805ArgThr: 2.805 ± 0.047
4.511ArgVal: 4.511 ± 0.054
1.006ArgTrp: 1.006 ± 0.027
1.561ArgTyr: 1.561 ± 0.037
0.0ArgXaa: 0.0 ± 0.0
Ser
5.865SerAla: 5.865 ± 0.07
0.423SerCys: 0.423 ± 0.019
3.441SerAsp: 3.441 ± 0.054
3.203SerGlu: 3.203 ± 0.05
2.247SerPhe: 2.247 ± 0.044
5.803SerGly: 5.803 ± 0.08
1.146SerHis: 1.146 ± 0.027
2.734SerIle: 2.734 ± 0.048
1.387SerLys: 1.387 ± 0.036
5.296SerLeu: 5.296 ± 0.066
1.428SerMet: 1.428 ± 0.035
1.394SerAsn: 1.394 ± 0.031
2.698SerPro: 2.698 ± 0.049
1.65SerGln: 1.65 ± 0.034
3.637SerArg: 3.637 ± 0.047
2.853SerSer: 2.853 ± 0.053
2.587SerThr: 2.587 ± 0.041
3.755SerVal: 3.755 ± 0.051
0.751SerTrp: 0.751 ± 0.025
1.334SerTyr: 1.334 ± 0.037
0.0SerXaa: 0.0 ± 0.0
Thr
5.991ThrAla: 5.991 ± 0.064
0.443ThrCys: 0.443 ± 0.019
3.045ThrAsp: 3.045 ± 0.052
3.234ThrGlu: 3.234 ± 0.047
1.617ThrPhe: 1.617 ± 0.039
5.491ThrGly: 5.491 ± 0.064
1.085ThrHis: 1.085 ± 0.029
2.766ThrIle: 2.766 ± 0.048
1.214ThrLys: 1.214 ± 0.03
5.415ThrLeu: 5.415 ± 0.063
1.252ThrMet: 1.252 ± 0.028
1.225ThrAsn: 1.225 ± 0.031
3.267ThrPro: 3.267 ± 0.051
1.435ThrGln: 1.435 ± 0.03
3.608ThrArg: 3.608 ± 0.054
2.716ThrSer: 2.716 ± 0.049
2.674ThrThr: 2.674 ± 0.047
3.968ThrVal: 3.968 ± 0.06
0.649ThrTrp: 0.649 ± 0.024
1.055ThrTyr: 1.055 ± 0.034
0.0ThrXaa: 0.0 ± 0.0
Val
8.17ValAla: 8.17 ± 0.093
0.578ValCys: 0.578 ± 0.02
3.659ValAsp: 3.659 ± 0.055
4.499ValGlu: 4.499 ± 0.07
2.668ValPhe: 2.668 ± 0.056
5.013ValGly: 5.013 ± 0.065
1.221ValHis: 1.221 ± 0.032
4.394ValIle: 4.394 ± 0.061
1.946ValLys: 1.946 ± 0.042
7.176ValLeu: 7.176 ± 0.085
2.111ValMet: 2.111 ± 0.038
1.966ValAsn: 1.966 ± 0.037
3.398ValPro: 3.398 ± 0.047
1.989ValGln: 1.989 ± 0.038
3.909ValArg: 3.909 ± 0.06
4.158ValSer: 4.158 ± 0.057
4.699ValThr: 4.699 ± 0.062
4.98ValVal: 4.98 ± 0.072
0.888ValTrp: 0.888 ± 0.023
1.327ValTyr: 1.327 ± 0.036
0.0ValXaa: 0.0 ± 0.0
Trp
1.35TrpAla: 1.35 ± 0.032
0.135TrpCys: 0.135 ± 0.011
0.707TrpAsp: 0.707 ± 0.023
0.672TrpGlu: 0.672 ± 0.022
0.606TrpPhe: 0.606 ± 0.023
1.053TrpGly: 1.053 ± 0.028
0.369TrpHis: 0.369 ± 0.015
0.768TrpIle: 0.768 ± 0.027
0.429TrpLys: 0.429 ± 0.017
1.817TrpLeu: 1.817 ± 0.043
0.404TrpMet: 0.404 ± 0.015
0.467TrpAsn: 0.467 ± 0.018
0.73TrpPro: 0.73 ± 0.025
0.69TrpGln: 0.69 ± 0.022
1.196TrpArg: 1.196 ± 0.031
0.814TrpSer: 0.814 ± 0.026
0.743TrpThr: 0.743 ± 0.024
0.8TrpVal: 0.8 ± 0.027
0.25TrpTrp: 0.25 ± 0.014
0.28TrpTyr: 0.28 ± 0.017
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.333TyrAla: 2.333 ± 0.04
0.232TyrCys: 0.232 ± 0.015
1.525TyrAsp: 1.525 ± 0.039
1.215TyrGlu: 1.215 ± 0.029
0.843TyrPhe: 0.843 ± 0.025
1.979TyrGly: 1.979 ± 0.038
0.528TyrHis: 0.528 ± 0.019
0.948TyrIle: 0.948 ± 0.028
0.513TyrLys: 0.513 ± 0.022
2.222TyrLeu: 2.222 ± 0.046
0.499TyrMet: 0.499 ± 0.017
0.585TyrAsn: 0.585 ± 0.019
1.11TyrPro: 1.11 ± 0.028
0.702TyrGln: 0.702 ± 0.02
1.653TyrArg: 1.653 ± 0.039
1.187TyrSer: 1.187 ± 0.033
1.01TyrThr: 1.01 ± 0.032
1.415TyrVal: 1.415 ± 0.032
0.366TyrTrp: 0.366 ± 0.016
0.574TyrTyr: 0.574 ± 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 4382 proteins (1362584 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