Amino acid dipepetide frequency for Caulobacter sp. 17J65-9

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
23.288AlaAla: 23.288 ± 0.231
1.307AlaCys: 1.307 ± 0.034
8.285AlaAsp: 8.285 ± 0.09
9.123AlaGlu: 9.123 ± 0.118
5.027AlaPhe: 5.027 ± 0.08
13.087AlaGly: 13.087 ± 0.132
2.285AlaHis: 2.285 ± 0.049
4.343AlaIle: 4.343 ± 0.066
4.337AlaLys: 4.337 ± 0.073
15.162AlaLeu: 15.162 ± 0.149
3.406AlaMet: 3.406 ± 0.051
2.457AlaAsn: 2.457 ± 0.054
8.003AlaPro: 8.003 ± 0.1
4.634AlaGln: 4.634 ± 0.068
11.158AlaArg: 11.158 ± 0.124
6.323AlaSer: 6.323 ± 0.069
5.943AlaThr: 5.943 ± 0.074
11.045AlaVal: 11.045 ± 0.115
2.398AlaTrp: 2.398 ± 0.045
3.032AlaTyr: 3.032 ± 0.048
0.0AlaXaa: 0.0 ± 0.0
Cys
1.186CysAla: 1.186 ± 0.029
0.075CysCys: 0.075 ± 0.007
0.461CysAsp: 0.461 ± 0.019
0.433CysGlu: 0.433 ± 0.019
0.236CysPhe: 0.236 ± 0.014
0.823CysGly: 0.823 ± 0.03
0.148CysHis: 0.148 ± 0.011
0.198CysIle: 0.198 ± 0.012
0.184CysLys: 0.184 ± 0.015
0.7CysLeu: 0.7 ± 0.02
0.125CysMet: 0.125 ± 0.011
0.148CysAsn: 0.148 ± 0.011
0.405CysPro: 0.405 ± 0.02
0.181CysGln: 0.181 ± 0.015
0.527CysArg: 0.527 ± 0.022
0.375CysSer: 0.375 ± 0.016
0.382CysThr: 0.382 ± 0.023
0.613CysVal: 0.613 ± 0.023
0.105CysTrp: 0.105 ± 0.011
0.147CysTyr: 0.147 ± 0.01
0.0CysXaa: 0.0 ± 0.0
Asp
8.252AspAla: 8.252 ± 0.097
0.426AspCys: 0.426 ± 0.018
3.259AspAsp: 3.259 ± 0.062
3.513AspGlu: 3.513 ± 0.063
2.15AspPhe: 2.15 ± 0.041
5.813AspGly: 5.813 ± 0.088
1.181AspHis: 1.181 ± 0.031
1.838AspIle: 1.838 ± 0.046
1.616AspLys: 1.616 ± 0.037
6.268AspLeu: 6.268 ± 0.077
1.121AspMet: 1.121 ± 0.033
1.061AspAsn: 1.061 ± 0.043
4.018AspPro: 4.018 ± 0.061
1.823AspGln: 1.823 ± 0.041
4.636AspArg: 4.636 ± 0.069
1.915AspSer: 1.915 ± 0.043
2.528AspThr: 2.528 ± 0.052
4.656AspVal: 4.656 ± 0.071
1.128AspTrp: 1.128 ± 0.031
1.487AspTyr: 1.487 ± 0.043
0.0AspXaa: 0.0 ± 0.0
Glu
9.424GluAla: 9.424 ± 0.118
0.276GluCys: 0.276 ± 0.014
2.774GluAsp: 2.774 ± 0.051
2.785GluGlu: 2.785 ± 0.065
1.659GluPhe: 1.659 ± 0.038
4.911GluGly: 4.911 ± 0.074
1.112GluHis: 1.112 ± 0.03
2.892GluIle: 2.892 ± 0.053
1.902GluLys: 1.902 ± 0.052
5.564GluLeu: 5.564 ± 0.084
1.185GluMet: 1.185 ± 0.033
1.208GluAsn: 1.208 ± 0.031
3.157GluPro: 3.157 ± 0.055
2.033GluGln: 2.033 ± 0.045
5.818GluArg: 5.818 ± 0.087
2.069GluSer: 2.069 ± 0.035
3.534GluThr: 3.534 ± 0.05
4.307GluVal: 4.307 ± 0.065
0.664GluTrp: 0.664 ± 0.024
0.896GluTyr: 0.896 ± 0.028
0.0GluXaa: 0.0 ± 0.0
Phe
4.923PheAla: 4.923 ± 0.065
0.31PheCys: 0.31 ± 0.016
2.723PheAsp: 2.723 ± 0.049
2.329PheGlu: 2.329 ± 0.049
1.23PhePhe: 1.23 ± 0.036
3.639PheGly: 3.639 ± 0.062
0.694PheHis: 0.694 ± 0.025
1.088PheIle: 1.088 ± 0.035
0.991PheLys: 0.991 ± 0.031
3.039PheLeu: 3.039 ± 0.055
0.687PheMet: 0.687 ± 0.024
0.949PheAsn: 0.949 ± 0.036
1.451PhePro: 1.451 ± 0.039
1.003PheGln: 1.003 ± 0.026
2.174PheArg: 2.174 ± 0.045
1.923PheSer: 1.923 ± 0.044
1.956PheThr: 1.956 ± 0.043
2.989PheVal: 2.989 ± 0.048
0.595PheTrp: 0.595 ± 0.025
0.847PheTyr: 0.847 ± 0.024
0.0PheXaa: 0.0 ± 0.0
Gly
12.445GlyAla: 12.445 ± 0.128
0.761GlyCys: 0.761 ± 0.027
5.196GlyAsp: 5.196 ± 0.102
5.564GlyGlu: 5.564 ± 0.081
3.665GlyPhe: 3.665 ± 0.064
9.111GlyGly: 9.111 ± 0.174
1.618GlyHis: 1.618 ± 0.039
2.335GlyIle: 2.335 ± 0.049
2.802GlyLys: 2.802 ± 0.059
9.406GlyLeu: 9.406 ± 0.097
2.022GlyMet: 2.022 ± 0.038
1.525GlyAsn: 1.525 ± 0.058
4.463GlyPro: 4.463 ± 0.06
2.964GlyGln: 2.964 ± 0.06
7.396GlyArg: 7.396 ± 0.084
4.19GlySer: 4.19 ± 0.081
3.76GlyThr: 3.76 ± 0.1
8.283GlyVal: 8.283 ± 0.095
1.855GlyTrp: 1.855 ± 0.045
2.191GlyTyr: 2.191 ± 0.045
0.0GlyXaa: 0.0 ± 0.0
His
2.474HisAla: 2.474 ± 0.048
0.162HisCys: 0.162 ± 0.011
1.095HisAsp: 1.095 ± 0.031
1.023HisGlu: 1.023 ± 0.03
0.583HisPhe: 0.583 ± 0.02
1.794HisGly: 1.794 ± 0.04
0.43HisHis: 0.43 ± 0.022
0.448HisIle: 0.448 ± 0.022
0.417HisLys: 0.417 ± 0.017
1.678HisLeu: 1.678 ± 0.039
0.395HisMet: 0.395 ± 0.017
0.338HisAsn: 0.338 ± 0.017
1.208HisPro: 1.208 ± 0.035
0.485HisGln: 0.485 ± 0.02
1.237HisArg: 1.237 ± 0.031
0.68HisSer: 0.68 ± 0.024
0.72HisThr: 0.72 ± 0.026
1.478HisVal: 1.478 ± 0.031
0.287HisTrp: 0.287 ± 0.014
0.435HisTyr: 0.435 ± 0.021
0.0HisXaa: 0.0 ± 0.0
Ile
5.195IleAla: 5.195 ± 0.078
0.321IleCys: 0.321 ± 0.016
2.713IleAsp: 2.713 ± 0.047
2.726IleGlu: 2.726 ± 0.053
1.041IlePhe: 1.041 ± 0.031
3.728IleGly: 3.728 ± 0.059
0.614IleHis: 0.614 ± 0.023
0.943IleIle: 0.943 ± 0.034
0.94IleLys: 0.94 ± 0.029
2.932IleLeu: 2.932 ± 0.049
0.604IleMet: 0.604 ± 0.023
0.898IleAsn: 0.898 ± 0.029
1.611IlePro: 1.611 ± 0.034
0.962IleGln: 0.962 ± 0.031
2.372IleArg: 2.372 ± 0.05
1.938IleSer: 1.938 ± 0.044
1.901IleThr: 1.901 ± 0.042
3.118IleVal: 3.118 ± 0.058
0.475IleTrp: 0.475 ± 0.021
0.805IleTyr: 0.805 ± 0.03
0.0IleXaa: 0.0 ± 0.0
Lys
4.71LysAla: 4.71 ± 0.082
0.115LysCys: 0.115 ± 0.01
1.653LysAsp: 1.653 ± 0.042
1.241LysGlu: 1.241 ± 0.034
0.862LysPhe: 0.862 ± 0.028
2.747LysGly: 2.747 ± 0.052
0.5LysHis: 0.5 ± 0.018
1.265LysIle: 1.265 ± 0.033
1.1LysLys: 1.1 ± 0.034
3.096LysLeu: 3.096 ± 0.049
0.587LysMet: 0.587 ± 0.021
0.656LysAsn: 0.656 ± 0.023
2.185LysPro: 2.185 ± 0.043
0.785LysGln: 0.785 ± 0.026
2.408LysArg: 2.408 ± 0.045
1.518LysSer: 1.518 ± 0.031
1.877LysThr: 1.877 ± 0.045
2.421LysVal: 2.421 ± 0.051
0.357LysTrp: 0.357 ± 0.02
0.544LysTyr: 0.544 ± 0.022
0.0LysXaa: 0.0 ± 0.0
Leu
15.178LeuAla: 15.178 ± 0.155
0.769LeuCys: 0.769 ± 0.022
6.149LeuAsp: 6.149 ± 0.079
5.495LeuGlu: 5.495 ± 0.078
3.513LeuPhe: 3.513 ± 0.055
8.546LeuGly: 8.546 ± 0.09
1.626LeuHis: 1.626 ± 0.038
4.105LeuIle: 4.105 ± 0.062
3.877LeuLys: 3.877 ± 0.068
8.844LeuLeu: 8.844 ± 0.109
2.012LeuMet: 2.012 ± 0.04
2.475LeuAsn: 2.475 ± 0.048
4.973LeuPro: 4.973 ± 0.065
2.704LeuGln: 2.704 ± 0.05
6.75LeuArg: 6.75 ± 0.086
5.865LeuSer: 5.865 ± 0.08
5.826LeuThr: 5.826 ± 0.087
7.646LeuVal: 7.646 ± 0.085
1.312LeuTrp: 1.312 ± 0.04
1.972LeuTyr: 1.972 ± 0.037
0.0LeuXaa: 0.0 ± 0.0
Met
2.841MetAla: 2.841 ± 0.048
0.123MetCys: 0.123 ± 0.009
1.079MetAsp: 1.079 ± 0.033
0.959MetGlu: 0.959 ± 0.025
0.651MetPhe: 0.651 ± 0.024
1.65MetGly: 1.65 ± 0.041
0.353MetHis: 0.353 ± 0.019
0.997MetIle: 0.997 ± 0.03
0.875MetLys: 0.875 ± 0.029
1.895MetLeu: 1.895 ± 0.045
0.454MetMet: 0.454 ± 0.02
0.62MetAsn: 0.62 ± 0.019
1.072MetPro: 1.072 ± 0.027
0.627MetGln: 0.627 ± 0.021
1.709MetArg: 1.709 ± 0.035
1.477MetSer: 1.477 ± 0.035
1.657MetThr: 1.657 ± 0.034
1.403MetVal: 1.403 ± 0.033
0.198MetTrp: 0.198 ± 0.013
0.272MetTyr: 0.272 ± 0.014
0.0MetXaa: 0.0 ± 0.0
Asn
2.86AsnAla: 2.86 ± 0.054
0.172AsnCys: 0.172 ± 0.012
1.204AsnAsp: 1.204 ± 0.043
0.987AsnGlu: 0.987 ± 0.031
0.778AsnPhe: 0.778 ± 0.033
2.073AsnGly: 2.073 ± 0.066
0.386AsnHis: 0.386 ± 0.018
0.815AsnIle: 0.815 ± 0.03
0.447AsnLys: 0.447 ± 0.019
2.381AsnLeu: 2.381 ± 0.051
0.401AsnMet: 0.401 ± 0.016
0.535AsnAsn: 0.535 ± 0.032
1.524AsnPro: 1.524 ± 0.039
0.632AsnGln: 0.632 ± 0.028
1.479AsnArg: 1.479 ± 0.035
0.966AsnSer: 0.966 ± 0.039
1.058AsnThr: 1.058 ± 0.038
1.758AsnVal: 1.758 ± 0.045
0.333AsnTrp: 0.333 ± 0.018
0.55AsnTyr: 0.55 ± 0.024
0.0AsnXaa: 0.0 ± 0.0
Pro
8.21ProAla: 8.21 ± 0.095
0.318ProCys: 0.318 ± 0.015
3.927ProAsp: 3.927 ± 0.067
3.924ProGlu: 3.924 ± 0.064
1.948ProPhe: 1.948 ± 0.042
5.19ProGly: 5.19 ± 0.075
0.943ProHis: 0.943 ± 0.027
1.929ProIle: 1.929 ± 0.039
1.861ProLys: 1.861 ± 0.044
4.736ProLeu: 4.736 ± 0.064
1.069ProMet: 1.069 ± 0.03
1.31ProAsn: 1.31 ± 0.033
3.029ProPro: 3.029 ± 0.082
1.729ProGln: 1.729 ± 0.04
3.214ProArg: 3.214 ± 0.063
2.621ProSer: 2.621 ± 0.047
2.916ProThr: 2.916 ± 0.08
4.49ProVal: 4.49 ± 0.068
0.8ProTrp: 0.8 ± 0.026
1.13ProTyr: 1.13 ± 0.031
0.0ProXaa: 0.0 ± 0.0
Gln
5.039GlnAla: 5.039 ± 0.072
0.141GlnCys: 0.141 ± 0.01
1.354GlnAsp: 1.354 ± 0.034
1.258GlnGlu: 1.258 ± 0.037
0.956GlnPhe: 0.956 ± 0.029
2.549GlnGly: 2.549 ± 0.044
0.506GlnHis: 0.506 ± 0.021
1.476GlnIle: 1.476 ± 0.031
0.859GlnLys: 0.859 ± 0.026
2.702GlnLeu: 2.702 ± 0.046
0.657GlnMet: 0.657 ± 0.025
0.649GlnAsn: 0.649 ± 0.025
1.822GlnPro: 1.822 ± 0.043
0.947GlnGln: 0.947 ± 0.03
2.113GlnArg: 2.113 ± 0.042
1.504GlnSer: 1.504 ± 0.035
1.784GlnThr: 1.784 ± 0.037
2.538GlnVal: 2.538 ± 0.053
0.331GlnTrp: 0.331 ± 0.02
0.563GlnTyr: 0.563 ± 0.025
0.0GlnXaa: 0.0 ± 0.0
Arg
10.095ArgAla: 10.095 ± 0.12
0.485ArgCys: 0.485 ± 0.02
4.179ArgAsp: 4.179 ± 0.07
4.571ArgGlu: 4.571 ± 0.076
3.057ArgPhe: 3.057 ± 0.051
5.374ArgGly: 5.374 ± 0.072
1.336ArgHis: 1.336 ± 0.03
3.05ArgIle: 3.05 ± 0.05
2.27ArgLys: 2.27 ± 0.052
8.949ArgLeu: 8.949 ± 0.112
1.872ArgMet: 1.872 ± 0.041
1.443ArgAsn: 1.443 ± 0.036
4.314ArgPro: 4.314 ± 0.08
2.298ArgGln: 2.298 ± 0.047
6.76ArgArg: 6.76 ± 0.118
3.363ArgSer: 3.363 ± 0.056
3.711ArgThr: 3.711 ± 0.058
5.72ArgVal: 5.72 ± 0.069
1.303ArgTrp: 1.303 ± 0.034
1.764ArgTyr: 1.764 ± 0.038
0.0ArgXaa: 0.0 ± 0.0
Ser
6.457SerAla: 6.457 ± 0.084
0.336SerCys: 0.336 ± 0.018
2.719SerAsp: 2.719 ± 0.049
2.366SerGlu: 2.366 ± 0.043
1.845SerPhe: 1.845 ± 0.042
5.1SerGly: 5.1 ± 0.088
0.836SerHis: 0.836 ± 0.026
1.82SerIle: 1.82 ± 0.04
1.399SerLys: 1.399 ± 0.039
4.677SerLeu: 4.677 ± 0.064
1.027SerMet: 1.027 ± 0.029
1.101SerAsn: 1.101 ± 0.037
2.87SerPro: 2.87 ± 0.051
1.374SerGln: 1.374 ± 0.037
3.259SerArg: 3.259 ± 0.052
2.355SerSer: 2.355 ± 0.058
2.467SerThr: 2.467 ± 0.058
3.865SerVal: 3.865 ± 0.063
0.789SerTrp: 0.789 ± 0.025
1.193SerTyr: 1.193 ± 0.034
0.0SerXaa: 0.0 ± 0.0
Thr
6.811ThrAla: 6.811 ± 0.078
0.375ThrCys: 0.375 ± 0.019
2.831ThrAsp: 2.831 ± 0.054
2.42ThrGlu: 2.42 ± 0.046
1.868ThrPhe: 1.868 ± 0.044
5.238ThrGly: 5.238 ± 0.094
0.838ThrHis: 0.838 ± 0.027
1.843ThrIle: 1.843 ± 0.046
1.281ThrLys: 1.281 ± 0.033
5.394ThrLeu: 5.394 ± 0.072
0.81ThrMet: 0.81 ± 0.028
1.141ThrAsn: 1.141 ± 0.039
3.915ThrPro: 3.915 ± 0.083
1.346ThrGln: 1.346 ± 0.035
3.348ThrArg: 3.348 ± 0.057
2.463ThrSer: 2.463 ± 0.06
2.716ThrThr: 2.716 ± 0.075
4.56ThrVal: 4.56 ± 0.071
0.784ThrTrp: 0.784 ± 0.026
1.249ThrTyr: 1.249 ± 0.037
0.0ThrXaa: 0.0 ± 0.0
Val
10.536ValAla: 10.536 ± 0.105
0.7ValCys: 0.7 ± 0.024
4.809ValAsp: 4.809 ± 0.067
5.532ValGlu: 5.532 ± 0.07
2.994ValPhe: 2.994 ± 0.051
6.599ValGly: 6.599 ± 0.079
1.354ValHis: 1.354 ± 0.037
3.233ValIle: 3.233 ± 0.058
2.436ValLys: 2.436 ± 0.052
8.416ValLeu: 8.416 ± 0.095
1.73ValMet: 1.73 ± 0.035
1.86ValAsn: 1.86 ± 0.039
3.463ValPro: 3.463 ± 0.057
2.25ValGln: 2.25 ± 0.048
6.17ValArg: 6.17 ± 0.08
4.267ValSer: 4.267 ± 0.059
4.52ValThr: 4.52 ± 0.081
7.369ValVal: 7.369 ± 0.084
1.244ValTrp: 1.244 ± 0.034
1.58ValTyr: 1.58 ± 0.033
0.0ValXaa: 0.0 ± 0.0
Trp
1.802TrpAla: 1.802 ± 0.043
0.119TrpCys: 0.119 ± 0.009
0.721TrpAsp: 0.721 ± 0.025
0.636TrpGlu: 0.636 ± 0.018
0.668TrpPhe: 0.668 ± 0.027
1.227TrpGly: 1.227 ± 0.036
0.257TrpHis: 0.257 ± 0.014
0.664TrpIle: 0.664 ± 0.028
0.523TrpLys: 0.523 ± 0.022
1.775TrpLeu: 1.775 ± 0.045
0.369TrpMet: 0.369 ± 0.015
0.473TrpAsn: 0.473 ± 0.02
0.813TrpPro: 0.813 ± 0.025
0.336TrpGln: 0.336 ± 0.018
1.689TrpArg: 1.689 ± 0.04
1.034TrpSer: 1.034 ± 0.031
1.015TrpThr: 1.015 ± 0.029
0.95TrpVal: 0.95 ± 0.026
0.329TrpTrp: 0.329 ± 0.018
0.264TrpTyr: 0.264 ± 0.015
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.916TyrAla: 2.916 ± 0.046
0.164TyrCys: 0.164 ± 0.011
1.56TyrAsp: 1.56 ± 0.039
1.283TyrGlu: 1.283 ± 0.037
0.811TyrPhe: 0.811 ± 0.024
2.353TyrGly: 2.353 ± 0.054
0.351TyrHis: 0.351 ± 0.02
0.551TyrIle: 0.551 ± 0.021
0.51TyrLys: 0.51 ± 0.02
2.019TyrLeu: 2.019 ± 0.041
0.376TyrMet: 0.376 ± 0.019
0.491TyrAsn: 0.491 ± 0.022
0.997TyrPro: 0.997 ± 0.03
0.636TyrGln: 0.636 ± 0.021
1.695TyrArg: 1.695 ± 0.039
1.011TyrSer: 1.011 ± 0.034
0.963TyrThr: 0.963 ± 0.032
1.854TyrVal: 1.854 ± 0.037
0.379TyrTrp: 0.379 ± 0.018
0.543TyrTyr: 0.543 ± 0.024
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 4292 proteins (1247758 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