Amino acid dipepetide frequency for Pseudomonas sp. v388

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
12.634AlaAla: 12.634 ± 0.113
1.163AlaCys: 1.163 ± 0.028
5.962AlaAsp: 5.962 ± 0.059
6.48AlaGlu: 6.48 ± 0.069
3.753AlaPhe: 3.753 ± 0.048
8.89AlaGly: 8.89 ± 0.083
2.191AlaHis: 2.191 ± 0.039
5.136AlaIle: 5.136 ± 0.051
3.42AlaLys: 3.42 ± 0.064
13.308AlaLeu: 13.308 ± 0.113
2.876AlaMet: 2.876 ± 0.047
2.963AlaAsn: 2.963 ± 0.046
4.744AlaPro: 4.744 ± 0.076
5.371AlaGln: 5.371 ± 0.076
7.243AlaArg: 7.243 ± 0.076
6.194AlaSer: 6.194 ± 0.074
4.974AlaThr: 4.974 ± 0.058
7.537AlaVal: 7.537 ± 0.07
1.544AlaTrp: 1.544 ± 0.037
2.435AlaTyr: 2.435 ± 0.039
0.0AlaXaa: 0.0 ± 0.0
Cys
1.067CysAla: 1.067 ± 0.028
0.116CysCys: 0.116 ± 0.009
0.532CysAsp: 0.532 ± 0.021
0.546CysGlu: 0.546 ± 0.02
0.328CysPhe: 0.328 ± 0.015
0.923CysGly: 0.923 ± 0.026
0.246CysHis: 0.246 ± 0.014
0.44CysIle: 0.44 ± 0.017
0.268CysLys: 0.268 ± 0.013
1.062CysLeu: 1.062 ± 0.024
0.215CysMet: 0.215 ± 0.01
0.267CysAsn: 0.267 ± 0.012
0.457CysPro: 0.457 ± 0.018
0.344CysGln: 0.344 ± 0.016
0.606CysArg: 0.606 ± 0.02
0.604CysSer: 0.604 ± 0.02
0.446CysThr: 0.446 ± 0.017
0.686CysVal: 0.686 ± 0.021
0.14CysTrp: 0.14 ± 0.01
0.221CysTyr: 0.221 ± 0.013
0.0CysXaa: 0.0 ± 0.0
Asp
5.824AspAla: 5.824 ± 0.069
0.507AspCys: 0.507 ± 0.019
2.982AspAsp: 2.982 ± 0.054
3.482AspGlu: 3.482 ± 0.057
2.142AspPhe: 2.142 ± 0.034
4.473AspGly: 4.473 ± 0.07
1.196AspHis: 1.196 ± 0.03
2.829AspIle: 2.829 ± 0.047
1.992AspLys: 1.992 ± 0.041
5.948AspLeu: 5.948 ± 0.061
1.261AspMet: 1.261 ± 0.027
1.634AspAsn: 1.634 ± 0.03
2.946AspPro: 2.946 ± 0.051
2.273AspGln: 2.273 ± 0.036
3.302AspArg: 3.302 ± 0.042
3.111AspSer: 3.111 ± 0.052
2.551AspThr: 2.551 ± 0.044
3.806AspVal: 3.806 ± 0.048
0.974AspTrp: 0.974 ± 0.027
1.756AspTyr: 1.756 ± 0.037
0.0AspXaa: 0.0 ± 0.0
Glu
5.948GluAla: 5.948 ± 0.072
0.41GluCys: 0.41 ± 0.017
2.54GluAsp: 2.54 ± 0.043
2.989GluGlu: 2.989 ± 0.052
1.803GluPhe: 1.803 ± 0.033
3.816GluGly: 3.816 ± 0.05
1.68GluHis: 1.68 ± 0.033
2.793GluIle: 2.793 ± 0.044
2.168GluLys: 2.168 ± 0.043
6.929GluLeu: 6.929 ± 0.077
1.34GluMet: 1.34 ± 0.029
1.619GluAsn: 1.619 ± 0.034
2.675GluPro: 2.675 ± 0.049
3.616GluGln: 3.616 ± 0.056
4.697GluArg: 4.697 ± 0.063
2.802GluSer: 2.802 ± 0.045
2.733GluThr: 2.733 ± 0.042
4.045GluVal: 4.045 ± 0.055
0.746GluTrp: 0.746 ± 0.021
1.251GluTyr: 1.251 ± 0.028
0.0GluXaa: 0.0 ± 0.0
Phe
3.907PheAla: 3.907 ± 0.056
0.464PheCys: 0.464 ± 0.018
2.496PheAsp: 2.496 ± 0.043
2.132PheGlu: 2.132 ± 0.035
1.447PhePhe: 1.447 ± 0.031
3.14PheGly: 3.14 ± 0.051
0.734PheHis: 0.734 ± 0.022
1.94PheIle: 1.94 ± 0.038
1.347PheLys: 1.347 ± 0.026
3.2PheLeu: 3.2 ± 0.049
0.871PheMet: 0.871 ± 0.026
1.363PheAsn: 1.363 ± 0.029
1.48PhePro: 1.48 ± 0.032
1.231PheGln: 1.231 ± 0.028
1.786PheArg: 1.786 ± 0.031
2.605PheSer: 2.605 ± 0.038
2.04PheThr: 2.04 ± 0.035
2.506PheVal: 2.506 ± 0.047
0.539PheTrp: 0.539 ± 0.021
1.044PheTyr: 1.044 ± 0.025
0.0PheXaa: 0.0 ± 0.0
Gly
7.312GlyAla: 7.312 ± 0.083
0.941GlyCys: 0.941 ± 0.028
3.89GlyAsp: 3.89 ± 0.05
4.617GlyGlu: 4.617 ± 0.053
3.372GlyPhe: 3.372 ± 0.052
5.956GlyGly: 5.956 ± 0.072
1.809GlyHis: 1.809 ± 0.038
4.186GlyIle: 4.186 ± 0.053
3.366GlyLys: 3.366 ± 0.056
9.177GlyLeu: 9.177 ± 0.092
2.262GlyMet: 2.262 ± 0.04
2.431GlyAsn: 2.431 ± 0.05
2.686GlyPro: 2.686 ± 0.042
3.593GlyGln: 3.593 ± 0.054
4.923GlyArg: 4.923 ± 0.046
4.732GlySer: 4.732 ± 0.061
3.893GlyThr: 3.893 ± 0.08
6.04GlyVal: 6.04 ± 0.067
1.324GlyTrp: 1.324 ± 0.031
2.447GlyTyr: 2.447 ± 0.037
0.0GlyXaa: 0.0 ± 0.0
His
2.262HisAla: 2.262 ± 0.042
0.305HisCys: 0.305 ± 0.012
1.263HisAsp: 1.263 ± 0.028
1.244HisGlu: 1.244 ± 0.03
0.972HisPhe: 0.972 ± 0.026
1.952HisGly: 1.952 ± 0.034
0.6HisHis: 0.6 ± 0.02
0.964HisIle: 0.964 ± 0.026
0.658HisLys: 0.658 ± 0.02
2.519HisLeu: 2.519 ± 0.045
0.53HisMet: 0.53 ± 0.022
0.649HisAsn: 0.649 ± 0.021
1.4HisPro: 1.4 ± 0.031
0.96HisGln: 0.96 ± 0.025
1.339HisArg: 1.339 ± 0.03
1.281HisSer: 1.281 ± 0.028
1.017HisThr: 1.017 ± 0.027
1.402HisVal: 1.402 ± 0.033
0.431HisTrp: 0.431 ± 0.016
0.742HisTyr: 0.742 ± 0.024
0.0HisXaa: 0.0 ± 0.0
Ile
5.938IleAla: 5.938 ± 0.073
0.514IleCys: 0.514 ± 0.018
3.352IleAsp: 3.352 ± 0.048
3.406IleGlu: 3.406 ± 0.052
1.518IlePhe: 1.518 ± 0.036
4.605IleGly: 4.605 ± 0.065
1.004IleHis: 1.004 ± 0.026
2.148IleIle: 2.148 ± 0.046
1.782IleLys: 1.782 ± 0.034
4.292IleLeu: 4.292 ± 0.059
0.886IleMet: 0.886 ± 0.024
1.807IleAsn: 1.807 ± 0.038
2.224IlePro: 2.224 ± 0.044
1.702IleGln: 1.702 ± 0.03
2.982IleArg: 2.982 ± 0.04
3.127IleSer: 3.127 ± 0.05
2.662IleThr: 2.662 ± 0.047
3.341IleVal: 3.341 ± 0.053
0.532IleTrp: 0.532 ± 0.018
1.119IleTyr: 1.119 ± 0.027
0.0IleXaa: 0.0 ± 0.0
Lys
4.086LysAla: 4.086 ± 0.067
0.175LysCys: 0.175 ± 0.011
1.798LysAsp: 1.798 ± 0.035
1.684LysGlu: 1.684 ± 0.038
0.865LysPhe: 0.865 ± 0.027
2.688LysGly: 2.688 ± 0.052
0.735LysHis: 0.735 ± 0.021
1.634LysIle: 1.634 ± 0.038
1.357LysLys: 1.357 ± 0.04
3.742LysLeu: 3.742 ± 0.051
0.752LysMet: 0.752 ± 0.024
1.0LysAsn: 1.0 ± 0.026
2.174LysPro: 2.174 ± 0.044
1.481LysGln: 1.481 ± 0.031
2.391LysArg: 2.391 ± 0.042
1.951LysSer: 1.951 ± 0.043
2.006LysThr: 2.006 ± 0.039
2.783LysVal: 2.783 ± 0.048
0.378LysTrp: 0.378 ± 0.016
0.686LysTyr: 0.686 ± 0.022
0.0LysXaa: 0.0 ± 0.0
Leu
13.53LeuAla: 13.53 ± 0.112
1.175LeuCys: 1.175 ± 0.031
6.87LeuAsp: 6.87 ± 0.086
6.402LeuGlu: 6.402 ± 0.077
4.064LeuPhe: 4.064 ± 0.061
8.922LeuGly: 8.922 ± 0.087
2.464LeuHis: 2.464 ± 0.048
5.761LeuIle: 5.761 ± 0.073
4.412LeuLys: 4.412 ± 0.057
12.854LeuLeu: 12.854 ± 0.14
2.647LeuMet: 2.647 ± 0.048
3.759LeuAsn: 3.759 ± 0.046
6.247LeuPro: 6.247 ± 0.064
4.481LeuGln: 4.481 ± 0.07
7.244LeuArg: 7.244 ± 0.078
7.341LeuSer: 7.341 ± 0.078
6.045LeuThr: 6.045 ± 0.068
7.685LeuVal: 7.685 ± 0.075
1.332LeuTrp: 1.332 ± 0.034
2.511LeuTyr: 2.511 ± 0.044
0.0LeuXaa: 0.0 ± 0.0
Met
2.635MetAla: 2.635 ± 0.041
0.181MetCys: 0.181 ± 0.01
1.1MetAsp: 1.1 ± 0.027
0.979MetGlu: 0.979 ± 0.027
0.736MetPhe: 0.736 ± 0.021
1.761MetGly: 1.761 ± 0.037
0.497MetHis: 0.497 ± 0.02
1.259MetIle: 1.259 ± 0.029
0.908MetLys: 0.908 ± 0.024
2.734MetLeu: 2.734 ± 0.049
0.527MetMet: 0.527 ± 0.02
0.935MetAsn: 0.935 ± 0.022
1.375MetPro: 1.375 ± 0.031
1.08MetGln: 1.08 ± 0.029
1.511MetArg: 1.511 ± 0.034
1.793MetSer: 1.793 ± 0.035
1.542MetThr: 1.542 ± 0.035
1.578MetVal: 1.578 ± 0.035
0.186MetTrp: 0.186 ± 0.01
0.403MetTyr: 0.403 ± 0.016
0.0MetXaa: 0.0 ± 0.0
Asn
3.203AsnAla: 3.203 ± 0.048
0.265AsnCys: 0.265 ± 0.014
1.675AsnAsp: 1.675 ± 0.04
1.53AsnGlu: 1.53 ± 0.037
1.051AsnPhe: 1.051 ± 0.027
2.647AsnGly: 2.647 ± 0.054
0.634AsnHis: 0.634 ± 0.021
1.43AsnIle: 1.43 ± 0.029
0.928AsnLys: 0.928 ± 0.026
3.532AsnLeu: 3.532 ± 0.048
0.628AsnMet: 0.628 ± 0.021
0.93AsnAsn: 0.93 ± 0.026
2.057AsnPro: 2.057 ± 0.041
1.205AsnGln: 1.205 ± 0.027
1.968AsnArg: 1.968 ± 0.037
1.636AsnSer: 1.636 ± 0.035
1.49AsnThr: 1.49 ± 0.03
2.097AsnVal: 2.097 ± 0.039
0.455AsnTrp: 0.455 ± 0.016
0.8AsnTyr: 0.8 ± 0.023
0.0AsnXaa: 0.0 ± 0.0
Pro
5.679ProAla: 5.679 ± 0.077
0.355ProCys: 0.355 ± 0.015
3.18ProAsp: 3.18 ± 0.054
3.18ProGlu: 3.18 ± 0.048
1.831ProPhe: 1.831 ± 0.034
4.063ProGly: 4.063 ± 0.049
1.095ProHis: 1.095 ± 0.028
2.089ProIle: 2.089 ± 0.032
1.609ProLys: 1.609 ± 0.035
5.56ProLeu: 5.56 ± 0.063
1.173ProMet: 1.173 ± 0.028
1.326ProAsn: 1.326 ± 0.028
1.939ProPro: 1.939 ± 0.049
2.289ProGln: 2.289 ± 0.035
2.654ProArg: 2.654 ± 0.043
2.602ProSer: 2.602 ± 0.04
2.367ProThr: 2.367 ± 0.045
4.121ProVal: 4.121 ± 0.058
0.726ProTrp: 0.726 ± 0.022
1.181ProTyr: 1.181 ± 0.029
0.0ProXaa: 0.0 ± 0.0
Gln
5.869GlnAla: 5.869 ± 0.074
0.32GlnCys: 0.32 ± 0.012
1.984GlnAsp: 1.984 ± 0.045
2.01GlnGlu: 2.01 ± 0.038
1.32GlnPhe: 1.32 ± 0.029
3.283GlnGly: 3.283 ± 0.045
1.041GlnHis: 1.041 ± 0.025
2.175GlnIle: 2.175 ± 0.04
1.231GlnLys: 1.231 ± 0.034
5.393GlnLeu: 5.393 ± 0.07
1.092GlnMet: 1.092 ± 0.026
1.114GlnAsn: 1.114 ± 0.027
2.408GlnPro: 2.408 ± 0.05
2.513GlnGln: 2.513 ± 0.053
3.578GlnArg: 3.578 ± 0.057
2.314GlnSer: 2.314 ± 0.044
2.144GlnThr: 2.144 ± 0.041
3.494GlnVal: 3.494 ± 0.058
0.724GlnTrp: 0.724 ± 0.024
0.955GlnTyr: 0.955 ± 0.025
0.0GlnXaa: 0.0 ± 0.0
Arg
5.927ArgAla: 5.927 ± 0.069
0.571ArgCys: 0.571 ± 0.018
3.563ArgAsp: 3.563 ± 0.054
4.072ArgGlu: 4.072 ± 0.056
2.76ArgPhe: 2.76 ± 0.044
3.985ArgGly: 3.985 ± 0.057
1.714ArgHis: 1.714 ± 0.032
3.535ArgIle: 3.535 ± 0.047
2.146ArgLys: 2.146 ± 0.039
8.384ArgLeu: 8.384 ± 0.085
1.71ArgMet: 1.71 ± 0.03
2.023ArgAsn: 2.023 ± 0.033
2.861ArgPro: 2.861 ± 0.047
3.473ArgGln: 3.473 ± 0.055
4.407ArgArg: 4.407 ± 0.062
3.621ArgSer: 3.621 ± 0.049
2.896ArgThr: 2.896 ± 0.043
4.506ArgVal: 4.506 ± 0.052
1.032ArgTrp: 1.032 ± 0.029
2.043ArgTyr: 2.043 ± 0.041
0.0ArgXaa: 0.0 ± 0.0
Ser
6.165SerAla: 6.165 ± 0.063
0.494SerCys: 0.494 ± 0.018
3.042SerAsp: 3.042 ± 0.043
3.083SerGlu: 3.083 ± 0.039
2.245SerPhe: 2.245 ± 0.039
5.384SerGly: 5.384 ± 0.069
1.378SerHis: 1.378 ± 0.028
2.869SerIle: 2.869 ± 0.041
1.855SerLys: 1.855 ± 0.032
7.026SerLeu: 7.026 ± 0.068
1.439SerMet: 1.439 ± 0.029
1.723SerAsn: 1.723 ± 0.035
2.74SerPro: 2.74 ± 0.046
2.383SerGln: 2.383 ± 0.041
3.812SerArg: 3.812 ± 0.043
3.604SerSer: 3.604 ± 0.056
3.049SerThr: 3.049 ± 0.044
4.323SerVal: 4.323 ± 0.05
0.822SerTrp: 0.822 ± 0.023
1.489SerTyr: 1.489 ± 0.034
0.0SerXaa: 0.0 ± 0.0
Thr
5.351ThrAla: 5.351 ± 0.063
0.439ThrCys: 0.439 ± 0.016
2.608ThrAsp: 2.608 ± 0.046
2.531ThrGlu: 2.531 ± 0.041
1.883ThrPhe: 1.883 ± 0.036
4.372ThrGly: 4.372 ± 0.068
1.11ThrHis: 1.11 ± 0.028
2.109ThrIle: 2.109 ± 0.039
1.155ThrLys: 1.155 ± 0.029
6.785ThrLeu: 6.785 ± 0.075
0.843ThrMet: 0.843 ± 0.025
1.221ThrAsn: 1.221 ± 0.028
3.267ThrPro: 3.267 ± 0.046
2.064ThrGln: 2.064 ± 0.038
3.341ThrArg: 3.341 ± 0.053
2.847ThrSer: 2.847 ± 0.044
2.571ThrThr: 2.571 ± 0.053
3.751ThrVal: 3.751 ± 0.056
0.73ThrTrp: 0.73 ± 0.025
1.263ThrTyr: 1.263 ± 0.033
0.0ThrXaa: 0.0 ± 0.0
Val
7.796ValAla: 7.796 ± 0.077
0.716ValCys: 0.716 ± 0.023
4.084ValAsp: 4.084 ± 0.058
4.435ValGlu: 4.435 ± 0.061
2.644ValPhe: 2.644 ± 0.041
5.254ValGly: 5.254 ± 0.062
1.441ValHis: 1.441 ± 0.031
3.954ValIle: 3.954 ± 0.06
2.475ValLys: 2.475 ± 0.041
8.157ValLeu: 8.157 ± 0.09
1.816ValMet: 1.816 ± 0.036
2.233ValAsn: 2.233 ± 0.038
3.349ValPro: 3.349 ± 0.05
2.808ValGln: 2.808 ± 0.041
4.382ValArg: 4.382 ± 0.052
4.422ValSer: 4.422 ± 0.057
3.918ValThr: 3.918 ± 0.057
5.625ValVal: 5.625 ± 0.07
0.889ValTrp: 0.889 ± 0.029
1.594ValTyr: 1.594 ± 0.036
0.0ValXaa: 0.0 ± 0.0
Trp
1.211TrpAla: 1.211 ± 0.032
0.144TrpCys: 0.144 ± 0.01
0.651TrpAsp: 0.651 ± 0.021
0.585TrpGlu: 0.585 ± 0.019
0.558TrpPhe: 0.558 ± 0.022
0.871TrpGly: 0.871 ± 0.028
0.376TrpHis: 0.376 ± 0.016
0.687TrpIle: 0.687 ± 0.022
0.492TrpLys: 0.492 ± 0.017
2.128TrpLeu: 2.128 ± 0.045
0.384TrpMet: 0.384 ± 0.018
0.455TrpAsn: 0.455 ± 0.017
0.689TrpPro: 0.689 ± 0.023
0.866TrpGln: 0.866 ± 0.027
1.068TrpArg: 1.068 ± 0.029
0.822TrpSer: 0.822 ± 0.025
0.659TrpThr: 0.659 ± 0.023
0.95TrpVal: 0.95 ± 0.021
0.224TrpTrp: 0.224 ± 0.012
0.319TrpTyr: 0.319 ± 0.015
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.477TyrAla: 2.477 ± 0.045
0.257TyrCys: 0.257 ± 0.011
1.415TyrAsp: 1.415 ± 0.038
1.211TyrGlu: 1.211 ± 0.032
0.978TyrPhe: 0.978 ± 0.026
1.973TyrGly: 1.973 ± 0.04
0.546TyrHis: 0.546 ± 0.019
1.0TyrIle: 1.0 ± 0.028
0.798TyrLys: 0.798 ± 0.023
3.016TyrLeu: 3.016 ± 0.042
0.47TyrMet: 0.47 ± 0.02
0.711TyrAsn: 0.711 ± 0.023
1.302TyrPro: 1.302 ± 0.03
1.231TyrGln: 1.231 ± 0.026
1.994TyrArg: 1.994 ± 0.035
1.517TyrSer: 1.517 ± 0.032
1.236TyrThr: 1.236 ± 0.031
1.718TyrVal: 1.718 ± 0.03
0.41TyrTrp: 0.41 ± 0.016
0.66TyrTyr: 0.66 ± 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 4804 proteins (1594406 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