Amino acid dipepetide frequency for Thalassospira sp. TSL5-1

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
12.436AlaAla: 12.436 ± 0.126
1.141AlaCys: 1.141 ± 0.032
6.479AlaAsp: 6.479 ± 0.082
6.333AlaGlu: 6.333 ± 0.083
4.115AlaPhe: 4.115 ± 0.061
9.139AlaGly: 9.139 ± 0.095
2.233AlaHis: 2.233 ± 0.045
6.508AlaIle: 6.508 ± 0.082
4.558AlaLys: 4.558 ± 0.065
11.13AlaLeu: 11.13 ± 0.102
3.344AlaMet: 3.344 ± 0.053
3.514AlaAsn: 3.514 ± 0.058
4.384AlaPro: 4.384 ± 0.068
3.901AlaGln: 3.901 ± 0.064
6.806AlaArg: 6.806 ± 0.089
6.014AlaSer: 6.014 ± 0.064
5.467AlaThr: 5.467 ± 0.071
7.669AlaVal: 7.669 ± 0.093
1.23AlaTrp: 1.23 ± 0.03
2.394AlaTyr: 2.394 ± 0.043
0.0AlaXaa: 0.0 ± 0.0
Cys
1.041CysAla: 1.041 ± 0.029
0.125CysCys: 0.125 ± 0.009
0.691CysAsp: 0.691 ± 0.021
0.51CysGlu: 0.51 ± 0.02
0.395CysPhe: 0.395 ± 0.019
0.997CysGly: 0.997 ± 0.03
0.309CysHis: 0.309 ± 0.02
0.49CysIle: 0.49 ± 0.021
0.313CysLys: 0.313 ± 0.015
0.919CysLeu: 0.919 ± 0.026
0.193CysMet: 0.193 ± 0.013
0.281CysAsn: 0.281 ± 0.016
0.482CysPro: 0.482 ± 0.019
0.328CysGln: 0.328 ± 0.017
0.557CysArg: 0.557 ± 0.021
0.499CysSer: 0.499 ± 0.021
0.43CysThr: 0.43 ± 0.018
0.656CysVal: 0.656 ± 0.022
0.145CysTrp: 0.145 ± 0.011
0.236CysTyr: 0.236 ± 0.013
0.0CysXaa: 0.0 ± 0.0
Asp
6.58AspAla: 6.58 ± 0.077
0.566AspCys: 0.566 ± 0.023
3.913AspAsp: 3.913 ± 0.064
3.628AspGlu: 3.628 ± 0.056
2.591AspPhe: 2.591 ± 0.045
5.129AspGly: 5.129 ± 0.08
1.544AspHis: 1.544 ± 0.041
4.232AspIle: 4.232 ± 0.061
2.223AspLys: 2.223 ± 0.042
6.118AspLeu: 6.118 ± 0.084
1.857AspMet: 1.857 ± 0.038
1.808AspAsn: 1.808 ± 0.045
3.122AspPro: 3.122 ± 0.047
2.306AspGln: 2.306 ± 0.05
3.748AspArg: 3.748 ± 0.058
2.483AspSer: 2.483 ± 0.049
2.709AspThr: 2.709 ± 0.06
4.63AspVal: 4.63 ± 0.073
0.949AspTrp: 0.949 ± 0.031
1.765AspTyr: 1.765 ± 0.035
0.0AspXaa: 0.0 ± 0.0
Glu
5.713GluAla: 5.713 ± 0.083
0.422GluCys: 0.422 ± 0.019
3.076GluAsp: 3.076 ± 0.052
3.173GluGlu: 3.173 ± 0.061
1.934GluPhe: 1.934 ± 0.041
3.85GluGly: 3.85 ± 0.056
1.178GluHis: 1.178 ± 0.035
4.105GluIle: 4.105 ± 0.063
3.211GluLys: 3.211 ± 0.054
5.255GluLeu: 5.255 ± 0.071
1.762GluMet: 1.762 ± 0.041
2.638GluAsn: 2.638 ± 0.041
2.122GluPro: 2.122 ± 0.048
2.213GluGln: 2.213 ± 0.042
3.618GluArg: 3.618 ± 0.056
2.313GluSer: 2.313 ± 0.042
3.658GluThr: 3.658 ± 0.056
3.429GluVal: 3.429 ± 0.051
0.66GluTrp: 0.66 ± 0.022
1.194GluTyr: 1.194 ± 0.031
0.0GluXaa: 0.0 ± 0.0
Phe
4.362PheAla: 4.362 ± 0.07
0.532PheCys: 0.532 ± 0.024
2.968PheAsp: 2.968 ± 0.05
2.1PheGlu: 2.1 ± 0.037
1.611PhePhe: 1.611 ± 0.039
3.771PheGly: 3.771 ± 0.063
0.814PheHis: 0.814 ± 0.025
2.123PheIle: 2.123 ± 0.049
1.342PheLys: 1.342 ± 0.035
3.563PheLeu: 3.563 ± 0.065
0.982PheMet: 0.982 ± 0.03
1.364PheAsn: 1.364 ± 0.033
1.529PhePro: 1.529 ± 0.034
0.999PheGln: 0.999 ± 0.027
2.024PheArg: 2.024 ± 0.045
2.454PheSer: 2.454 ± 0.044
2.06PheThr: 2.06 ± 0.045
3.004PheVal: 3.004 ± 0.054
0.608PheTrp: 0.608 ± 0.022
1.078PheTyr: 1.078 ± 0.03
0.0PheXaa: 0.0 ± 0.0
Gly
7.93GlyAla: 7.93 ± 0.091
0.864GlyCys: 0.864 ± 0.03
4.749GlyAsp: 4.749 ± 0.081
4.357GlyGlu: 4.357 ± 0.066
3.55GlyPhe: 3.55 ± 0.058
6.564GlyGly: 6.564 ± 0.106
1.878GlyHis: 1.878 ± 0.039
5.213GlyIle: 5.213 ± 0.061
4.134GlyLys: 4.134 ± 0.06
8.258GlyLeu: 8.258 ± 0.087
2.497GlyMet: 2.497 ± 0.052
2.699GlyAsn: 2.699 ± 0.071
2.976GlyPro: 2.976 ± 0.053
2.958GlyGln: 2.958 ± 0.046
4.732GlyArg: 4.732 ± 0.063
4.347GlySer: 4.347 ± 0.083
4.549GlyThr: 4.549 ± 0.083
5.911GlyVal: 5.911 ± 0.082
1.224GlyTrp: 1.224 ± 0.036
2.419GlyTyr: 2.419 ± 0.043
0.0GlyXaa: 0.0 ± 0.0
His
2.186HisAla: 2.186 ± 0.044
0.283HisCys: 0.283 ± 0.014
1.465HisAsp: 1.465 ± 0.039
1.147HisGlu: 1.147 ± 0.031
0.946HisPhe: 0.946 ± 0.027
1.796HisGly: 1.796 ± 0.04
0.667HisHis: 0.667 ± 0.027
1.304HisIle: 1.304 ± 0.034
0.757HisLys: 0.757 ± 0.025
2.138HisLeu: 2.138 ± 0.049
0.602HisMet: 0.602 ± 0.022
0.731HisAsn: 0.731 ± 0.023
1.32HisPro: 1.32 ± 0.038
0.773HisGln: 0.773 ± 0.024
1.307HisArg: 1.307 ± 0.033
1.063HisSer: 1.063 ± 0.029
0.893HisThr: 0.893 ± 0.028
1.465HisVal: 1.465 ± 0.039
0.335HisTrp: 0.335 ± 0.015
0.64HisTyr: 0.64 ± 0.021
0.0HisXaa: 0.0 ± 0.0
Ile
7.557IleAla: 7.557 ± 0.077
0.671IleCys: 0.671 ± 0.022
4.333IleAsp: 4.333 ± 0.058
3.897IleGlu: 3.897 ± 0.06
2.095IlePhe: 2.095 ± 0.047
5.423IleGly: 5.423 ± 0.073
1.128IleHis: 1.128 ± 0.026
3.346IleIle: 3.346 ± 0.056
2.146IleLys: 2.146 ± 0.043
5.475IleLeu: 5.475 ± 0.074
1.348IleMet: 1.348 ± 0.034
2.092IleAsn: 2.092 ± 0.044
2.642IlePro: 2.642 ± 0.047
1.414IleGln: 1.414 ± 0.04
3.303IleArg: 3.303 ± 0.056
3.952IleSer: 3.952 ± 0.065
3.5IleThr: 3.5 ± 0.059
4.354IleVal: 4.354 ± 0.065
0.715IleTrp: 0.715 ± 0.03
1.435IleTyr: 1.435 ± 0.035
0.0IleXaa: 0.0 ± 0.0
Lys
4.259LysAla: 4.259 ± 0.064
0.257LysCys: 0.257 ± 0.016
2.202LysAsp: 2.202 ± 0.046
1.926LysGlu: 1.926 ± 0.053
1.337LysPhe: 1.337 ± 0.035
3.05LysGly: 3.05 ± 0.056
0.781LysHis: 0.781 ± 0.026
2.642LysIle: 2.642 ± 0.05
1.998LysLys: 1.998 ± 0.043
4.023LysLeu: 4.023 ± 0.062
1.239LysMet: 1.239 ± 0.031
1.576LysAsn: 1.576 ± 0.036
2.205LysPro: 2.205 ± 0.05
1.48LysGln: 1.48 ± 0.036
2.519LysArg: 2.519 ± 0.045
2.434LysSer: 2.434 ± 0.043
2.665LysThr: 2.665 ± 0.044
2.812LysVal: 2.812 ± 0.049
0.508LysTrp: 0.508 ± 0.021
1.007LysTyr: 1.007 ± 0.028
0.0LysXaa: 0.0 ± 0.0
Leu
11.649LeuAla: 11.649 ± 0.109
1.019LeuCys: 1.019 ± 0.033
5.884LeuAsp: 5.884 ± 0.07
5.255LeuGlu: 5.255 ± 0.074
3.941LeuPhe: 3.941 ± 0.066
7.741LeuGly: 7.741 ± 0.089
2.032LeuHis: 2.032 ± 0.041
5.577LeuIle: 5.577 ± 0.069
3.916LeuLys: 3.916 ± 0.055
9.012LeuLeu: 9.012 ± 0.129
2.615LeuMet: 2.615 ± 0.044
3.121LeuAsn: 3.121 ± 0.053
5.229LeuPro: 5.229 ± 0.07
3.075LeuGln: 3.075 ± 0.047
6.152LeuArg: 6.152 ± 0.079
6.396LeuSer: 6.396 ± 0.086
5.291LeuThr: 5.291 ± 0.072
6.924LeuVal: 6.924 ± 0.081
1.078LeuTrp: 1.078 ± 0.031
2.066LeuTyr: 2.066 ± 0.036
0.0LeuXaa: 0.0 ± 0.0
Met
3.333MetAla: 3.333 ± 0.05
0.209MetCys: 0.209 ± 0.013
1.316MetAsp: 1.316 ± 0.036
1.287MetGlu: 1.287 ± 0.033
0.907MetPhe: 0.907 ± 0.024
2.052MetGly: 2.052 ± 0.046
0.423MetHis: 0.423 ± 0.018
1.771MetIle: 1.771 ± 0.041
1.183MetLys: 1.183 ± 0.033
2.733MetLeu: 2.733 ± 0.05
0.852MetMet: 0.852 ± 0.03
0.96MetAsn: 0.96 ± 0.027
1.596MetPro: 1.596 ± 0.036
0.962MetGln: 0.962 ± 0.029
1.751MetArg: 1.751 ± 0.038
1.83MetSer: 1.83 ± 0.033
2.041MetThr: 2.041 ± 0.037
2.093MetVal: 2.093 ± 0.043
0.259MetTrp: 0.259 ± 0.013
0.435MetTyr: 0.435 ± 0.019
0.0MetXaa: 0.0 ± 0.0
Asn
3.736AsnAla: 3.736 ± 0.058
0.325AsnCys: 0.325 ± 0.017
2.131AsnAsp: 2.131 ± 0.051
1.589AsnGlu: 1.589 ± 0.036
1.218AsnPhe: 1.218 ± 0.028
3.083AsnGly: 3.083 ± 0.063
0.72AsnHis: 0.72 ± 0.023
2.145AsnIle: 2.145 ± 0.043
1.097AsnLys: 1.097 ± 0.033
3.339AsnLeu: 3.339 ± 0.049
0.973AsnMet: 0.973 ± 0.026
1.136AsnAsn: 1.136 ± 0.033
2.073AsnPro: 2.073 ± 0.047
1.087AsnGln: 1.087 ± 0.036
2.154AsnArg: 2.154 ± 0.05
1.744AsnSer: 1.744 ± 0.04
1.67AsnThr: 1.67 ± 0.043
2.426AsnVal: 2.426 ± 0.046
0.546AsnTrp: 0.546 ± 0.024
0.882AsnTyr: 0.882 ± 0.028
0.0AsnXaa: 0.0 ± 0.0
Pro
5.087ProAla: 5.087 ± 0.07
0.346ProCys: 0.346 ± 0.024
3.689ProAsp: 3.689 ± 0.063
3.435ProGlu: 3.435 ± 0.063
1.946ProPhe: 1.946 ± 0.04
3.871ProGly: 3.871 ± 0.063
1.06ProHis: 1.06 ± 0.027
2.255ProIle: 2.255 ± 0.046
1.816ProLys: 1.816 ± 0.039
4.124ProLeu: 4.124 ± 0.063
1.151ProMet: 1.151 ± 0.033
1.416ProAsn: 1.416 ± 0.033
1.723ProPro: 1.723 ± 0.042
1.567ProGln: 1.567 ± 0.034
2.191ProArg: 2.191 ± 0.047
2.462ProSer: 2.462 ± 0.041
2.216ProThr: 2.216 ± 0.045
4.186ProVal: 4.186 ± 0.064
0.584ProTrp: 0.584 ± 0.021
1.24ProTyr: 1.24 ± 0.029
0.0ProXaa: 0.0 ± 0.0
Gln
3.823GlnAla: 3.823 ± 0.062
0.254GlnCys: 0.254 ± 0.014
1.933GlnAsp: 1.933 ± 0.038
1.756GlnGlu: 1.756 ± 0.04
1.206GlnPhe: 1.206 ± 0.035
2.479GlnGly: 2.479 ± 0.039
0.767GlnHis: 0.767 ± 0.026
2.245GlnIle: 2.245 ± 0.051
1.716GlnLys: 1.716 ± 0.041
3.026GlnLeu: 3.026 ± 0.049
1.017GlnMet: 1.017 ± 0.028
1.458GlnAsn: 1.458 ± 0.037
1.519GlnPro: 1.519 ± 0.038
1.521GlnGln: 1.521 ± 0.043
2.112GlnArg: 2.112 ± 0.046
2.096GlnSer: 2.096 ± 0.044
1.973GlnThr: 1.973 ± 0.043
2.242GlnVal: 2.242 ± 0.051
0.399GlnTrp: 0.399 ± 0.019
0.838GlnTyr: 0.838 ± 0.027
0.0GlnXaa: 0.0 ± 0.0
Arg
6.042ArgAla: 6.042 ± 0.074
0.466ArgCys: 0.466 ± 0.021
4.167ArgAsp: 4.167 ± 0.063
3.722ArgGlu: 3.722 ± 0.065
2.475ArgPhe: 2.475 ± 0.05
3.816ArgGly: 3.816 ± 0.065
1.603ArgHis: 1.603 ± 0.036
3.789ArgIle: 3.789 ± 0.053
2.759ArgLys: 2.759 ± 0.056
6.471ArgLeu: 6.471 ± 0.081
1.608ArgMet: 1.608 ± 0.037
2.237ArgAsn: 2.237 ± 0.038
2.56ArgPro: 2.56 ± 0.051
2.516ArgGln: 2.516 ± 0.044
3.889ArgArg: 3.889 ± 0.065
2.91ArgSer: 2.91 ± 0.048
2.639ArgThr: 2.639 ± 0.046
4.005ArgVal: 4.005 ± 0.062
0.723ArgTrp: 0.723 ± 0.026
1.648ArgTyr: 1.648 ± 0.037
0.0ArgXaa: 0.0 ± 0.0
Ser
5.96SerAla: 5.96 ± 0.072
0.489SerCys: 0.489 ± 0.019
3.272SerAsp: 3.272 ± 0.051
2.835SerGlu: 2.835 ± 0.048
2.465SerPhe: 2.465 ± 0.044
5.475SerGly: 5.475 ± 0.087
1.289SerHis: 1.289 ± 0.032
3.181SerIle: 3.181 ± 0.061
1.91SerLys: 1.91 ± 0.037
5.501SerLeu: 5.501 ± 0.068
1.548SerMet: 1.548 ± 0.036
1.75SerAsn: 1.75 ± 0.042
2.751SerPro: 2.751 ± 0.052
2.01SerGln: 2.01 ± 0.046
3.287SerArg: 3.287 ± 0.05
3.251SerSer: 3.251 ± 0.068
2.697SerThr: 2.697 ± 0.058
4.08SerVal: 4.08 ± 0.063
0.721SerTrp: 0.721 ± 0.026
1.421SerTyr: 1.421 ± 0.031
0.0SerXaa: 0.0 ± 0.0
Thr
5.711ThrAla: 5.711 ± 0.074
0.448ThrCys: 0.448 ± 0.019
3.11ThrAsp: 3.11 ± 0.046
2.716ThrGlu: 2.716 ± 0.048
1.988ThrPhe: 1.988 ± 0.046
5.125ThrGly: 5.125 ± 0.074
1.112ThrHis: 1.112 ± 0.029
3.197ThrIle: 3.197 ± 0.058
1.742ThrLys: 1.742 ± 0.039
5.657ThrLeu: 5.657 ± 0.073
1.202ThrMet: 1.202 ± 0.029
1.621ThrAsn: 1.621 ± 0.044
2.978ThrPro: 2.978 ± 0.046
1.549ThrGln: 1.549 ± 0.036
3.088ThrArg: 3.088 ± 0.052
3.037ThrSer: 3.037 ± 0.055
2.906ThrThr: 2.906 ± 0.066
4.278ThrVal: 4.278 ± 0.061
0.55ThrTrp: 0.55 ± 0.022
1.258ThrTyr: 1.258 ± 0.033
0.0ThrXaa: 0.0 ± 0.0
Val
7.945ValAla: 7.945 ± 0.08
0.75ValCys: 0.75 ± 0.024
4.115ValAsp: 4.115 ± 0.062
4.041ValGlu: 4.041 ± 0.062
2.958ValPhe: 2.958 ± 0.05
5.36ValGly: 5.36 ± 0.06
1.336ValHis: 1.336 ± 0.029
4.751ValIle: 4.751 ± 0.062
2.794ValLys: 2.794 ± 0.048
7.187ValLeu: 7.187 ± 0.09
2.233ValMet: 2.233 ± 0.045
2.395ValAsn: 2.395 ± 0.043
3.398ValPro: 3.398 ± 0.053
1.987ValGln: 1.987 ± 0.044
4.073ValArg: 4.073 ± 0.065
4.594ValSer: 4.594 ± 0.068
4.273ValThr: 4.273 ± 0.058
5.487ValVal: 5.487 ± 0.083
0.84ValTrp: 0.84 ± 0.027
1.655ValTyr: 1.655 ± 0.033
0.0ValXaa: 0.0 ± 0.0
Trp
1.054TrpAla: 1.054 ± 0.03
0.139TrpCys: 0.139 ± 0.01
0.694TrpAsp: 0.694 ± 0.025
0.537TrpGlu: 0.537 ± 0.021
0.512TrpPhe: 0.512 ± 0.023
0.852TrpGly: 0.852 ± 0.028
0.347TrpHis: 0.347 ± 0.018
0.693TrpIle: 0.693 ± 0.026
0.521TrpLys: 0.521 ± 0.02
1.587TrpLeu: 1.587 ± 0.04
0.388TrpMet: 0.388 ± 0.018
0.462TrpAsn: 0.462 ± 0.018
0.611TrpPro: 0.611 ± 0.024
0.777TrpGln: 0.777 ± 0.027
0.972TrpArg: 0.972 ± 0.026
0.682TrpSer: 0.682 ± 0.025
0.535TrpThr: 0.535 ± 0.021
0.805TrpVal: 0.805 ± 0.024
0.212TrpTrp: 0.212 ± 0.014
0.303TrpTyr: 0.303 ± 0.015
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.392TyrAla: 2.392 ± 0.048
0.293TyrCys: 0.293 ± 0.016
1.715TyrAsp: 1.715 ± 0.042
1.281TyrGlu: 1.281 ± 0.032
1.096TyrPhe: 1.096 ± 0.032
2.238TyrGly: 2.238 ± 0.041
0.596TyrHis: 0.596 ± 0.023
1.259TyrIle: 1.259 ± 0.032
0.786TyrLys: 0.786 ± 0.026
2.454TyrLeu: 2.454 ± 0.044
0.583TyrMet: 0.583 ± 0.021
0.812TyrAsn: 0.812 ± 0.024
1.144TyrPro: 1.144 ± 0.03
0.959TyrGln: 0.959 ± 0.028
1.762TyrArg: 1.762 ± 0.037
1.332TyrSer: 1.332 ± 0.036
1.102TyrThr: 1.102 ± 0.032
1.715TyrVal: 1.715 ± 0.033
0.395TyrTrp: 0.395 ± 0.018
0.758TyrTyr: 0.758 ± 0.027
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 3929 proteins (1254152 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