Amino acid dipepetide frequency for Rhodoferax saidenbachensis

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
16.024AlaAla: 16.024 ± 0.169
1.241AlaCys: 1.241 ± 0.031
6.099AlaAsp: 6.099 ± 0.065
6.087AlaGlu: 6.087 ± 0.081
4.013AlaPhe: 4.013 ± 0.051
9.339AlaGly: 9.339 ± 0.095
2.696AlaHis: 2.696 ± 0.047
5.319AlaIle: 5.319 ± 0.075
4.781AlaLys: 4.781 ± 0.082
15.023AlaLeu: 15.023 ± 0.159
3.684AlaMet: 3.684 ± 0.058
3.235AlaAsn: 3.235 ± 0.061
5.632AlaPro: 5.632 ± 0.085
6.702AlaGln: 6.702 ± 0.091
7.426AlaArg: 7.426 ± 0.084
6.9AlaSer: 6.9 ± 0.09
6.541AlaThr: 6.541 ± 0.089
8.975AlaVal: 8.975 ± 0.095
1.855AlaTrp: 1.855 ± 0.045
2.512AlaTyr: 2.512 ± 0.046
0.0AlaXaa: 0.0 ± 0.0
Cys
1.16CysAla: 1.16 ± 0.031
0.099CysCys: 0.099 ± 0.009
0.481CysAsp: 0.481 ± 0.019
0.472CysGlu: 0.472 ± 0.018
0.302CysPhe: 0.302 ± 0.015
0.916CysGly: 0.916 ± 0.029
0.243CysHis: 0.243 ± 0.016
0.463CysIle: 0.463 ± 0.019
0.289CysLys: 0.289 ± 0.014
0.855CysLeu: 0.855 ± 0.028
0.223CysMet: 0.223 ± 0.012
0.256CysAsn: 0.256 ± 0.016
0.449CysPro: 0.449 ± 0.022
0.278CysGln: 0.278 ± 0.015
0.468CysArg: 0.468 ± 0.019
0.517CysSer: 0.517 ± 0.022
0.52CysThr: 0.52 ± 0.019
0.76CysVal: 0.76 ± 0.021
0.117CysTrp: 0.117 ± 0.01
0.2CysTyr: 0.2 ± 0.013
0.0CysXaa: 0.0 ± 0.0
Asp
6.896AspAla: 6.896 ± 0.082
0.473AspCys: 0.473 ± 0.022
2.453AspAsp: 2.453 ± 0.05
2.739AspGlu: 2.739 ± 0.056
2.131AspPhe: 2.131 ± 0.049
4.13AspGly: 4.13 ± 0.056
1.062AspHis: 1.062 ± 0.03
2.591AspIle: 2.591 ± 0.047
2.029AspLys: 2.029 ± 0.043
5.264AspLeu: 5.264 ± 0.072
1.329AspMet: 1.329 ± 0.034
1.309AspAsn: 1.309 ± 0.036
2.493AspPro: 2.493 ± 0.047
1.885AspGln: 1.885 ± 0.066
2.727AspArg: 2.727 ± 0.048
2.403AspSer: 2.403 ± 0.044
2.745AspThr: 2.745 ± 0.052
4.123AspVal: 4.123 ± 0.057
0.883AspTrp: 0.883 ± 0.024
1.345AspTyr: 1.345 ± 0.039
0.0AspXaa: 0.0 ± 0.0
Glu
6.145GluAla: 6.145 ± 0.078
0.389GluCys: 0.389 ± 0.018
2.275GluAsp: 2.275 ± 0.047
2.61GluGlu: 2.61 ± 0.052
1.893GluPhe: 1.893 ± 0.042
3.473GluGly: 3.473 ± 0.057
1.207GluHis: 1.207 ± 0.037
2.741GluIle: 2.741 ± 0.049
2.267GluLys: 2.267 ± 0.045
5.639GluLeu: 5.639 ± 0.081
1.362GluMet: 1.362 ± 0.029
1.351GluAsn: 1.351 ± 0.033
2.204GluPro: 2.204 ± 0.04
2.526GluGln: 2.526 ± 0.053
3.829GluArg: 3.829 ± 0.06
2.675GluSer: 2.675 ± 0.049
2.608GluThr: 2.608 ± 0.048
3.995GluVal: 3.995 ± 0.064
0.711GluTrp: 0.711 ± 0.026
1.066GluTyr: 1.066 ± 0.031
0.0GluXaa: 0.0 ± 0.0
Phe
4.345PheAla: 4.345 ± 0.068
0.412PheCys: 0.412 ± 0.019
2.413PheAsp: 2.413 ± 0.048
2.094PheGlu: 2.094 ± 0.041
1.435PhePhe: 1.435 ± 0.042
3.238PheGly: 3.238 ± 0.057
0.737PheHis: 0.737 ± 0.024
1.594PheIle: 1.594 ± 0.038
1.475PheLys: 1.475 ± 0.038
3.097PheLeu: 3.097 ± 0.053
0.864PheMet: 0.864 ± 0.028
1.208PheAsn: 1.208 ± 0.026
1.532PhePro: 1.532 ± 0.041
1.144PheGln: 1.144 ± 0.028
1.649PheArg: 1.649 ± 0.04
2.309PheSer: 2.309 ± 0.04
1.977PheThr: 1.977 ± 0.034
2.877PheVal: 2.877 ± 0.051
0.542PheTrp: 0.542 ± 0.023
0.893PheTyr: 0.893 ± 0.028
0.0PheXaa: 0.0 ± 0.0
Gly
8.596GlyAla: 8.596 ± 0.099
0.852GlyCys: 0.852 ± 0.025
3.637GlyAsp: 3.637 ± 0.055
3.986GlyGlu: 3.986 ± 0.058
3.214GlyPhe: 3.214 ± 0.057
6.419GlyGly: 6.419 ± 0.099
1.848GlyHis: 1.848 ± 0.043
4.052GlyIle: 4.052 ± 0.062
3.773GlyLys: 3.773 ± 0.073
8.835GlyLeu: 8.835 ± 0.095
2.396GlyMet: 2.396 ± 0.048
2.311GlyAsn: 2.311 ± 0.041
2.734GlyPro: 2.734 ± 0.052
3.384GlyGln: 3.384 ± 0.056
4.503GlyArg: 4.503 ± 0.062
4.405GlySer: 4.405 ± 0.066
4.458GlyThr: 4.458 ± 0.072
6.588GlyVal: 6.588 ± 0.078
1.344GlyTrp: 1.344 ± 0.034
2.293GlyTyr: 2.293 ± 0.047
0.0GlyXaa: 0.0 ± 0.0
His
2.741HisAla: 2.741 ± 0.046
0.274HisCys: 0.274 ± 0.015
1.095HisAsp: 1.095 ± 0.033
0.953HisGlu: 0.953 ± 0.029
0.936HisPhe: 0.936 ± 0.031
1.978HisGly: 1.978 ± 0.049
0.63HisHis: 0.63 ± 0.027
1.091HisIle: 1.091 ± 0.031
0.665HisLys: 0.665 ± 0.025
2.252HisLeu: 2.252 ± 0.05
0.553HisMet: 0.553 ± 0.024
0.568HisAsn: 0.568 ± 0.021
1.345HisPro: 1.345 ± 0.032
0.813HisGln: 0.813 ± 0.025
1.214HisArg: 1.214 ± 0.036
1.165HisSer: 1.165 ± 0.035
1.268HisThr: 1.268 ± 0.036
1.542HisVal: 1.542 ± 0.035
0.421HisTrp: 0.421 ± 0.02
0.671HisTyr: 0.671 ± 0.023
0.0HisXaa: 0.0 ± 0.0
Ile
6.32IleAla: 6.32 ± 0.075
0.424IleCys: 0.424 ± 0.017
2.749IleAsp: 2.749 ± 0.053
2.848IleGlu: 2.848 ± 0.059
1.395IlePhe: 1.395 ± 0.036
3.936IleGly: 3.936 ± 0.062
0.965IleHis: 0.965 ± 0.029
1.653IleIle: 1.653 ± 0.042
1.793IleLys: 1.793 ± 0.039
3.635IleLeu: 3.635 ± 0.055
0.862IleMet: 0.862 ± 0.029
1.583IleAsn: 1.583 ± 0.039
2.202IlePro: 2.202 ± 0.05
1.643IleGln: 1.643 ± 0.053
2.529IleArg: 2.529 ± 0.047
2.724IleSer: 2.724 ± 0.052
2.923IleThr: 2.923 ± 0.052
3.389IleVal: 3.389 ± 0.054
0.509IleTrp: 0.509 ± 0.019
1.039IleTyr: 1.039 ± 0.029
0.0IleXaa: 0.0 ± 0.0
Lys
4.734LysAla: 4.734 ± 0.08
0.193LysCys: 0.193 ± 0.012
2.046LysAsp: 2.046 ± 0.046
1.836LysGlu: 1.836 ± 0.038
1.134LysPhe: 1.134 ± 0.033
2.855LysGly: 2.855 ± 0.056
0.768LysHis: 0.768 ± 0.025
1.793LysIle: 1.793 ± 0.039
1.837LysLys: 1.837 ± 0.047
4.072LysLeu: 4.072 ± 0.061
1.039LysMet: 1.039 ± 0.028
1.241LysAsn: 1.241 ± 0.031
2.365LysPro: 2.365 ± 0.043
1.492LysGln: 1.492 ± 0.036
2.373LysArg: 2.373 ± 0.045
2.125LysSer: 2.125 ± 0.048
2.503LysThr: 2.503 ± 0.046
3.038LysVal: 3.038 ± 0.064
0.384LysTrp: 0.384 ± 0.021
0.775LysTyr: 0.775 ± 0.025
0.0LysXaa: 0.0 ± 0.0
Leu
14.077LeuAla: 14.077 ± 0.128
1.039LeuCys: 1.039 ± 0.03
5.73LeuAsp: 5.73 ± 0.077
5.299LeuGlu: 5.299 ± 0.073
3.494LeuPhe: 3.494 ± 0.053
8.768LeuGly: 8.768 ± 0.092
2.407LeuHis: 2.407 ± 0.055
4.353LeuIle: 4.353 ± 0.071
4.129LeuLys: 4.129 ± 0.062
11.482LeuLeu: 11.482 ± 0.15
2.76LeuMet: 2.76 ± 0.058
3.036LeuAsn: 3.036 ± 0.051
5.761LeuPro: 5.761 ± 0.072
5.127LeuGln: 5.127 ± 0.07
6.845LeuArg: 6.845 ± 0.08
6.36LeuSer: 6.36 ± 0.086
5.632LeuThr: 5.632 ± 0.106
8.393LeuVal: 8.393 ± 0.093
1.464LeuTrp: 1.464 ± 0.034
2.011LeuTyr: 2.011 ± 0.04
0.0LeuXaa: 0.0 ± 0.0
Met
3.397MetAla: 3.397 ± 0.055
0.189MetCys: 0.189 ± 0.012
1.458MetAsp: 1.458 ± 0.037
1.304MetGlu: 1.304 ± 0.033
0.777MetPhe: 0.777 ± 0.028
2.213MetGly: 2.213 ± 0.042
0.607MetHis: 0.607 ± 0.022
0.877MetIle: 0.877 ± 0.029
1.11MetLys: 1.11 ± 0.028
2.76MetLeu: 2.76 ± 0.05
0.615MetMet: 0.615 ± 0.025
0.867MetAsn: 0.867 ± 0.025
1.498MetPro: 1.498 ± 0.033
1.309MetGln: 1.309 ± 0.034
1.72MetArg: 1.72 ± 0.041
1.61MetSer: 1.61 ± 0.045
1.579MetThr: 1.579 ± 0.038
2.079MetVal: 2.079 ± 0.045
0.21MetTrp: 0.21 ± 0.013
0.428MetTyr: 0.428 ± 0.02
0.0MetXaa: 0.0 ± 0.0
Asn
3.742AsnAla: 3.742 ± 0.06
0.25AsnCys: 0.25 ± 0.013
1.382AsnAsp: 1.382 ± 0.034
1.259AsnGlu: 1.259 ± 0.035
1.048AsnPhe: 1.048 ± 0.029
2.286AsnGly: 2.286 ± 0.048
0.57AsnHis: 0.57 ± 0.02
1.444AsnIle: 1.444 ± 0.036
1.018AsnLys: 1.018 ± 0.029
2.958AsnLeu: 2.958 ± 0.049
0.667AsnMet: 0.667 ± 0.022
0.861AsnAsn: 0.861 ± 0.027
1.956AsnPro: 1.956 ± 0.038
1.124AsnGln: 1.124 ± 0.035
1.648AsnArg: 1.648 ± 0.038
1.383AsnSer: 1.383 ± 0.034
1.779AsnThr: 1.779 ± 0.042
2.076AsnVal: 2.076 ± 0.04
0.421AsnTrp: 0.421 ± 0.019
0.718AsnTyr: 0.718 ± 0.024
0.0AsnXaa: 0.0 ± 0.0
Pro
6.194ProAla: 6.194 ± 0.078
0.326ProCys: 0.326 ± 0.018
2.834ProAsp: 2.834 ± 0.056
3.038ProGlu: 3.038 ± 0.05
1.78ProPhe: 1.78 ± 0.036
3.916ProGly: 3.916 ± 0.054
1.09ProHis: 1.09 ± 0.031
1.984ProIle: 1.984 ± 0.039
1.826ProLys: 1.826 ± 0.042
5.083ProLeu: 5.083 ± 0.07
1.351ProMet: 1.351 ± 0.031
1.407ProAsn: 1.407 ± 0.03
2.211ProPro: 2.211 ± 0.051
2.221ProGln: 2.221 ± 0.048
2.377ProArg: 2.377 ± 0.048
2.694ProSer: 2.694 ± 0.046
2.69ProThr: 2.69 ± 0.041
4.229ProVal: 4.229 ± 0.056
0.797ProTrp: 0.797 ± 0.026
1.094ProTyr: 1.094 ± 0.033
0.0ProXaa: 0.0 ± 0.0
Gln
6.125GlnAla: 6.125 ± 0.091
0.349GlnCys: 0.349 ± 0.018
1.879GlnAsp: 1.879 ± 0.038
1.969GlnGlu: 1.969 ± 0.043
1.502GlnPhe: 1.502 ± 0.035
3.39GlnGly: 3.39 ± 0.052
1.066GlnHis: 1.066 ± 0.03
2.043GlnIle: 2.043 ± 0.051
1.469GlnLys: 1.469 ± 0.039
4.473GlnLeu: 4.473 ± 0.066
1.153GlnMet: 1.153 ± 0.027
1.056GlnAsn: 1.056 ± 0.034
2.15GlnPro: 2.15 ± 0.039
2.196GlnGln: 2.196 ± 0.053
3.252GlnArg: 3.252 ± 0.059
2.486GlnSer: 2.486 ± 0.053
2.484GlnThr: 2.484 ± 0.052
3.372GlnVal: 3.372 ± 0.074
0.792GlnTrp: 0.792 ± 0.025
0.873GlnTyr: 0.873 ± 0.026
0.0GlnXaa: 0.0 ± 0.0
Arg
6.525ArgAla: 6.525 ± 0.079
0.504ArgCys: 0.504 ± 0.019
3.111ArgAsp: 3.111 ± 0.051
3.386ArgGlu: 3.386 ± 0.063
2.476ArgPhe: 2.476 ± 0.044
3.927ArgGly: 3.927 ± 0.062
1.444ArgHis: 1.444 ± 0.034
3.141ArgIle: 3.141 ± 0.049
2.288ArgLys: 2.288 ± 0.044
6.649ArgLeu: 6.649 ± 0.083
1.874ArgMet: 1.874 ± 0.044
1.923ArgAsn: 1.923 ± 0.041
2.55ArgPro: 2.55 ± 0.04
2.603ArgGln: 2.603 ± 0.049
3.568ArgArg: 3.568 ± 0.063
3.24ArgSer: 3.24 ± 0.053
3.194ArgThr: 3.194 ± 0.048
4.548ArgVal: 4.548 ± 0.056
1.035ArgTrp: 1.035 ± 0.031
1.594ArgTyr: 1.594 ± 0.035
0.0ArgXaa: 0.0 ± 0.0
Ser
6.795SerAla: 6.795 ± 0.085
0.415SerCys: 0.415 ± 0.015
2.673SerAsp: 2.673 ± 0.048
2.557SerGlu: 2.557 ± 0.041
2.113SerPhe: 2.113 ± 0.046
5.123SerGly: 5.123 ± 0.065
1.205SerHis: 1.205 ± 0.036
2.631SerIle: 2.631 ± 0.051
1.996SerLys: 1.996 ± 0.041
6.025SerLeu: 6.025 ± 0.082
1.539SerMet: 1.539 ± 0.034
1.682SerAsn: 1.682 ± 0.042
2.796SerPro: 2.796 ± 0.05
2.057SerGln: 2.057 ± 0.045
3.096SerArg: 3.096 ± 0.052
3.377SerSer: 3.377 ± 0.066
3.462SerThr: 3.462 ± 0.096
4.286SerVal: 4.286 ± 0.071
0.701SerTrp: 0.701 ± 0.024
1.304SerTyr: 1.304 ± 0.03
0.0SerXaa: 0.0 ± 0.0
Thr
6.408ThrAla: 6.408 ± 0.09
0.429ThrCys: 0.429 ± 0.017
2.732ThrAsp: 2.732 ± 0.077
2.774ThrGlu: 2.774 ± 0.047
1.816ThrPhe: 1.816 ± 0.042
4.867ThrGly: 4.867 ± 0.067
1.267ThrHis: 1.267 ± 0.03
2.291ThrIle: 2.291 ± 0.052
1.676ThrLys: 1.676 ± 0.037
6.853ThrLeu: 6.853 ± 0.078
1.296ThrMet: 1.296 ± 0.029
1.404ThrAsn: 1.404 ± 0.036
3.672ThrPro: 3.672 ± 0.068
2.44ThrGln: 2.44 ± 0.041
3.172ThrArg: 3.172 ± 0.053
3.037ThrSer: 3.037 ± 0.067
3.402ThrThr: 3.402 ± 0.14
4.552ThrVal: 4.552 ± 0.063
0.726ThrTrp: 0.726 ± 0.027
1.159ThrTyr: 1.159 ± 0.03
0.0ThrXaa: 0.0 ± 0.0
Val
9.756ValAla: 9.756 ± 0.117
0.767ValCys: 0.767 ± 0.026
4.156ValAsp: 4.156 ± 0.056
4.087ValGlu: 4.087 ± 0.064
2.839ValPhe: 2.839 ± 0.056
5.858ValGly: 5.858 ± 0.083
1.581ValHis: 1.581 ± 0.036
3.526ValIle: 3.526 ± 0.048
2.815ValLys: 2.815 ± 0.054
8.742ValLeu: 8.742 ± 0.101
2.091ValMet: 2.091 ± 0.043
2.216ValAsn: 2.216 ± 0.042
3.76ValPro: 3.76 ± 0.057
3.388ValGln: 3.388 ± 0.051
4.668ValArg: 4.668 ± 0.063
4.334ValSer: 4.334 ± 0.064
4.193ValThr: 4.193 ± 0.06
6.819ValVal: 6.819 ± 0.077
1.122ValTrp: 1.122 ± 0.034
1.625ValTyr: 1.625 ± 0.038
0.0ValXaa: 0.0 ± 0.0
Trp
1.503TrpAla: 1.503 ± 0.042
0.167TrpCys: 0.167 ± 0.013
0.673TrpAsp: 0.673 ± 0.023
0.56TrpGlu: 0.56 ± 0.023
0.578TrpPhe: 0.578 ± 0.022
0.98TrpGly: 0.98 ± 0.031
0.348TrpHis: 0.348 ± 0.016
0.678TrpIle: 0.678 ± 0.024
0.531TrpLys: 0.531 ± 0.019
2.043TrpLeu: 2.043 ± 0.045
0.487TrpMet: 0.487 ± 0.02
0.459TrpAsn: 0.459 ± 0.019
0.665TrpPro: 0.665 ± 0.023
0.745TrpGln: 0.745 ± 0.023
1.028TrpArg: 1.028 ± 0.03
0.833TrpSer: 0.833 ± 0.026
0.759TrpThr: 0.759 ± 0.024
1.079TrpVal: 1.079 ± 0.03
0.289TrpTrp: 0.289 ± 0.017
0.318TrpTyr: 0.318 ± 0.017
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.599TyrAla: 2.599 ± 0.05
0.275TyrCys: 0.275 ± 0.014
1.131TyrAsp: 1.131 ± 0.033
1.109TyrGlu: 1.109 ± 0.029
0.959TyrPhe: 0.959 ± 0.028
2.015TyrGly: 2.015 ± 0.048
0.432TyrHis: 0.432 ± 0.016
0.854TyrIle: 0.854 ± 0.024
0.84TyrLys: 0.84 ± 0.031
2.423TyrLeu: 2.423 ± 0.042
0.46TyrMet: 0.46 ± 0.019
0.616TyrAsn: 0.616 ± 0.021
1.169TyrPro: 1.169 ± 0.03
1.007TyrGln: 1.007 ± 0.028
1.491TyrArg: 1.491 ± 0.035
1.258TyrSer: 1.258 ± 0.032
1.258TyrThr: 1.258 ± 0.035
1.623TyrVal: 1.623 ± 0.036
0.399TyrTrp: 0.399 ± 0.018
0.542TyrTyr: 0.542 ± 0.023
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 3921 proteins (1271949 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