Amino acid dipepetide frequency for Azospirillum sp. TSO22-1

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
20.694AlaAla: 20.694 ± 0.168
1.286AlaCys: 1.286 ± 0.029
7.303AlaAsp: 7.303 ± 0.066
8.657AlaGlu: 8.657 ± 0.084
4.396AlaPhe: 4.396 ± 0.049
12.321AlaGly: 12.321 ± 0.095
2.459AlaHis: 2.459 ± 0.041
5.094AlaIle: 5.094 ± 0.05
3.642AlaLys: 3.642 ± 0.047
15.438AlaLeu: 15.438 ± 0.12
3.464AlaMet: 3.464 ± 0.046
2.628AlaAsn: 2.628 ± 0.046
6.469AlaPro: 6.469 ± 0.074
3.937AlaGln: 3.937 ± 0.05
9.695AlaArg: 9.695 ± 0.081
5.548AlaSer: 5.548 ± 0.063
6.135AlaThr: 6.135 ± 0.064
11.532AlaVal: 11.532 ± 0.096
1.772AlaTrp: 1.772 ± 0.031
2.586AlaTyr: 2.586 ± 0.036
0.0AlaXaa: 0.0 ± 0.0
Cys
1.097CysAla: 1.097 ± 0.022
0.109CysCys: 0.109 ± 0.008
0.518CysAsp: 0.518 ± 0.017
0.411CysGlu: 0.411 ± 0.015
0.314CysPhe: 0.314 ± 0.013
1.018CysGly: 1.018 ± 0.026
0.274CysHis: 0.274 ± 0.014
0.353CysIle: 0.353 ± 0.014
0.181CysLys: 0.181 ± 0.01
0.81CysLeu: 0.81 ± 0.021
0.177CysMet: 0.177 ± 0.01
0.182CysAsn: 0.182 ± 0.01
0.545CysPro: 0.545 ± 0.02
0.214CysGln: 0.214 ± 0.01
0.743CysArg: 0.743 ± 0.02
0.417CysSer: 0.417 ± 0.015
0.488CysThr: 0.488 ± 0.016
0.684CysVal: 0.684 ± 0.019
0.109CysTrp: 0.109 ± 0.007
0.208CysTyr: 0.208 ± 0.012
0.0CysXaa: 0.0 ± 0.0
Asp
7.431AspAla: 7.431 ± 0.068
0.446AspCys: 0.446 ± 0.016
2.955AspAsp: 2.955 ± 0.043
3.344AspGlu: 3.344 ± 0.044
1.885AspPhe: 1.885 ± 0.036
5.582AspGly: 5.582 ± 0.065
1.209AspHis: 1.209 ± 0.025
2.286AspIle: 2.286 ± 0.041
1.375AspLys: 1.375 ± 0.031
6.335AspLeu: 6.335 ± 0.069
1.101AspMet: 1.101 ± 0.028
1.022AspAsn: 1.022 ± 0.024
3.716AspPro: 3.716 ± 0.046
1.457AspGln: 1.457 ± 0.029
4.575AspArg: 4.575 ± 0.047
2.15AspSer: 2.15 ± 0.032
2.734AspThr: 2.734 ± 0.04
4.36AspVal: 4.36 ± 0.046
0.852AspTrp: 0.852 ± 0.022
1.241AspTyr: 1.241 ± 0.027
0.0AspXaa: 0.0 ± 0.0
Glu
8.11GluAla: 8.11 ± 0.068
0.363GluCys: 0.363 ± 0.016
2.71GluAsp: 2.71 ± 0.042
3.342GluGlu: 3.342 ± 0.048
1.532GluPhe: 1.532 ± 0.03
4.283GluGly: 4.283 ± 0.048
1.317GluHis: 1.317 ± 0.03
2.793GluIle: 2.793 ± 0.042
1.802GluLys: 1.802 ± 0.036
5.463GluLeu: 5.463 ± 0.061
1.46GluMet: 1.46 ± 0.027
1.231GluAsn: 1.231 ± 0.023
2.964GluPro: 2.964 ± 0.045
2.028GluGln: 2.028 ± 0.033
5.886GluArg: 5.886 ± 0.064
2.188GluSer: 2.188 ± 0.034
3.099GluThr: 3.099 ± 0.038
4.373GluVal: 4.373 ± 0.057
0.651GluTrp: 0.651 ± 0.016
0.939GluTyr: 0.939 ± 0.025
0.0GluXaa: 0.0 ± 0.0
Phe
4.478PheAla: 4.478 ± 0.054
0.383PheCys: 0.383 ± 0.014
2.284PheAsp: 2.284 ± 0.037
1.911PheGlu: 1.911 ± 0.035
1.216PhePhe: 1.216 ± 0.028
3.46PheGly: 3.46 ± 0.047
0.767PheHis: 0.767 ± 0.019
1.276PheIle: 1.276 ± 0.027
0.883PheLys: 0.883 ± 0.021
3.389PheLeu: 3.389 ± 0.045
0.678PheMet: 0.678 ± 0.018
0.878PheAsn: 0.878 ± 0.022
1.621PhePro: 1.621 ± 0.029
1.018PheGln: 1.018 ± 0.021
2.327PheArg: 2.327 ± 0.034
1.607PheSer: 1.607 ± 0.028
1.918PheThr: 1.918 ± 0.033
2.759PheVal: 2.759 ± 0.04
0.456PheTrp: 0.456 ± 0.017
0.799PheTyr: 0.799 ± 0.019
0.0PheXaa: 0.0 ± 0.0
Gly
10.383GlyAla: 10.383 ± 0.088
1.003GlyCys: 1.003 ± 0.021
4.448GlyAsp: 4.448 ± 0.055
4.745GlyGlu: 4.745 ± 0.049
3.523GlyPhe: 3.523 ± 0.041
7.984GlyGly: 7.984 ± 0.096
1.968GlyHis: 1.968 ± 0.035
4.157GlyIle: 4.157 ± 0.047
2.928GlyLys: 2.928 ± 0.045
9.477GlyLeu: 9.477 ± 0.084
2.417GlyMet: 2.417 ± 0.038
2.034GlyAsn: 2.034 ± 0.045
3.84GlyPro: 3.84 ± 0.043
2.668GlyGln: 2.668 ± 0.038
7.328GlyArg: 7.328 ± 0.071
4.225GlySer: 4.225 ± 0.048
5.107GlyThr: 5.107 ± 0.067
7.145GlyVal: 7.145 ± 0.066
1.536GlyTrp: 1.536 ± 0.031
2.281GlyTyr: 2.281 ± 0.036
0.0GlyXaa: 0.0 ± 0.0
His
2.714HisAla: 2.714 ± 0.038
0.245HisCys: 0.245 ± 0.011
1.287HisAsp: 1.287 ± 0.03
1.043HisGlu: 1.043 ± 0.022
0.766HisPhe: 0.766 ± 0.02
2.152HisGly: 2.152 ± 0.034
0.62HisHis: 0.62 ± 0.024
0.773HisIle: 0.773 ± 0.02
0.487HisLys: 0.487 ± 0.016
2.285HisLeu: 2.285 ± 0.034
0.461HisMet: 0.461 ± 0.014
0.417HisAsn: 0.417 ± 0.017
1.496HisPro: 1.496 ± 0.029
0.564HisGln: 0.564 ± 0.019
1.725HisArg: 1.725 ± 0.034
0.772HisSer: 0.772 ± 0.019
1.016HisThr: 1.016 ± 0.025
1.59HisVal: 1.59 ± 0.026
0.334HisTrp: 0.334 ± 0.013
0.518HisTyr: 0.518 ± 0.018
0.0HisXaa: 0.0 ± 0.0
Ile
5.925IleAla: 5.925 ± 0.07
0.325IleCys: 0.325 ± 0.013
3.048IleAsp: 3.048 ± 0.045
2.709IleGlu: 2.709 ± 0.037
1.104IlePhe: 1.104 ± 0.027
4.281IleGly: 4.281 ± 0.055
0.811IleHis: 0.811 ± 0.02
1.431IleIle: 1.431 ± 0.034
1.109IleLys: 1.109 ± 0.024
3.853IleLeu: 3.853 ± 0.045
0.724IleMet: 0.724 ± 0.021
1.099IleAsn: 1.099 ± 0.026
2.098IlePro: 2.098 ± 0.036
1.087IleGln: 1.087 ± 0.027
3.004IleArg: 3.004 ± 0.044
1.771IleSer: 1.771 ± 0.033
2.227IleThr: 2.227 ± 0.038
3.555IleVal: 3.555 ± 0.044
0.378IleTrp: 0.378 ± 0.014
0.795IleTyr: 0.795 ± 0.023
0.0IleXaa: 0.0 ± 0.0
Lys
3.915LysAla: 3.915 ± 0.056
0.151LysCys: 0.151 ± 0.009
1.647LysAsp: 1.647 ± 0.036
1.471LysGlu: 1.471 ± 0.031
0.683LysPhe: 0.683 ± 0.018
2.488LysGly: 2.488 ± 0.04
0.554LysHis: 0.554 ± 0.021
1.167LysIle: 1.167 ± 0.029
0.937LysLys: 0.937 ± 0.031
2.8LysLeu: 2.8 ± 0.047
0.61LysMet: 0.61 ± 0.019
0.621LysAsn: 0.621 ± 0.019
2.021LysPro: 2.021 ± 0.035
0.832LysGln: 0.832 ± 0.021
2.245LysArg: 2.245 ± 0.038
1.236LysSer: 1.236 ± 0.026
1.559LysThr: 1.559 ± 0.032
2.288LysVal: 2.288 ± 0.037
0.275LysTrp: 0.275 ± 0.013
0.53LysTyr: 0.53 ± 0.021
0.0LysXaa: 0.0 ± 0.0
Leu
15.309LeuAla: 15.309 ± 0.13
0.99LeuCys: 0.99 ± 0.024
6.48LeuAsp: 6.48 ± 0.056
5.68LeuGlu: 5.68 ± 0.057
3.75LeuPhe: 3.75 ± 0.051
9.161LeuGly: 9.161 ± 0.087
2.224LeuHis: 2.224 ± 0.033
4.154LeuIle: 4.154 ± 0.056
3.339LeuLys: 3.339 ± 0.047
10.819LeuLeu: 10.819 ± 0.098
2.275LeuMet: 2.275 ± 0.038
2.479LeuAsn: 2.479 ± 0.037
6.208LeuPro: 6.208 ± 0.063
2.408LeuGln: 2.408 ± 0.041
7.999LeuArg: 7.999 ± 0.08
5.935LeuSer: 5.935 ± 0.053
5.964LeuThr: 5.964 ± 0.064
8.143LeuVal: 8.143 ± 0.075
1.288LeuTrp: 1.288 ± 0.028
2.08LeuTyr: 2.08 ± 0.033
0.0LeuXaa: 0.0 ± 0.0
Met
3.338MetAla: 3.338 ± 0.044
0.143MetCys: 0.143 ± 0.008
1.166MetAsp: 1.166 ± 0.022
1.048MetGlu: 1.048 ± 0.024
0.574MetPhe: 0.574 ± 0.019
1.809MetGly: 1.809 ± 0.032
0.437MetHis: 0.437 ± 0.016
1.032MetIle: 1.032 ± 0.023
0.755MetLys: 0.755 ± 0.02
2.42MetLeu: 2.42 ± 0.036
0.592MetMet: 0.592 ± 0.021
0.601MetAsn: 0.601 ± 0.017
1.533MetPro: 1.533 ± 0.029
0.725MetGln: 0.725 ± 0.019
1.762MetArg: 1.762 ± 0.029
1.275MetSer: 1.275 ± 0.023
1.664MetThr: 1.664 ± 0.032
1.878MetVal: 1.878 ± 0.032
0.171MetTrp: 0.171 ± 0.01
0.287MetTyr: 0.287 ± 0.014
0.0MetXaa: 0.0 ± 0.0
Asn
2.924AsnAla: 2.924 ± 0.041
0.209AsnCys: 0.209 ± 0.01
1.17AsnAsp: 1.17 ± 0.024
0.989AsnGlu: 0.989 ± 0.023
0.725AsnPhe: 0.725 ± 0.021
2.12AsnGly: 2.12 ± 0.043
0.481AsnHis: 0.481 ± 0.016
0.958AsnIle: 0.958 ± 0.026
0.543AsnLys: 0.543 ± 0.017
2.494AsnLeu: 2.494 ± 0.042
0.436AsnMet: 0.436 ± 0.016
0.551AsnAsn: 0.551 ± 0.019
1.722AsnPro: 1.722 ± 0.031
0.629AsnGln: 0.629 ± 0.02
1.769AsnArg: 1.769 ± 0.031
0.896AsnSer: 0.896 ± 0.027
1.18AsnThr: 1.18 ± 0.034
1.805AsnVal: 1.805 ± 0.033
0.311AsnTrp: 0.311 ± 0.014
0.5AsnTyr: 0.5 ± 0.018
0.0AsnXaa: 0.0 ± 0.0
Pro
7.825ProAla: 7.825 ± 0.075
0.371ProCys: 0.371 ± 0.014
3.967ProAsp: 3.967 ± 0.051
3.906ProGlu: 3.906 ± 0.051
1.968ProPhe: 1.968 ± 0.033
5.097ProGly: 5.097 ± 0.053
1.189ProHis: 1.189 ± 0.026
1.843ProIle: 1.843 ± 0.034
1.607ProLys: 1.607 ± 0.034
5.419ProLeu: 5.419 ± 0.059
1.245ProMet: 1.245 ± 0.026
1.225ProAsn: 1.225 ± 0.026
3.593ProPro: 3.593 ± 0.059
1.538ProGln: 1.538 ± 0.031
3.318ProArg: 3.318 ± 0.046
2.497ProSer: 2.497 ± 0.04
2.609ProThr: 2.609 ± 0.043
4.914ProVal: 4.914 ± 0.063
0.818ProTrp: 0.818 ± 0.02
1.189ProTyr: 1.189 ± 0.023
0.0ProXaa: 0.0 ± 0.0
Gln
4.096GlnAla: 4.096 ± 0.049
0.193GlnCys: 0.193 ± 0.011
1.342GlnAsp: 1.342 ± 0.024
1.481GlnGlu: 1.481 ± 0.028
0.862GlnPhe: 0.862 ± 0.024
2.437GlnGly: 2.437 ± 0.032
0.604GlnHis: 0.604 ± 0.019
1.34GlnIle: 1.34 ± 0.029
0.883GlnLys: 0.883 ± 0.021
2.639GlnLeu: 2.639 ± 0.038
0.745GlnMet: 0.745 ± 0.021
0.638GlnAsn: 0.638 ± 0.019
1.789GlnPro: 1.789 ± 0.031
1.143GlnGln: 1.143 ± 0.033
2.462GlnArg: 2.462 ± 0.044
1.319GlnSer: 1.319 ± 0.025
1.629GlnThr: 1.629 ± 0.033
2.258GlnVal: 2.258 ± 0.03
0.358GlnTrp: 0.358 ± 0.014
0.534GlnTyr: 0.534 ± 0.018
0.0GlnXaa: 0.0 ± 0.0
Arg
9.341ArgAla: 9.341 ± 0.078
0.662ArgCys: 0.662 ± 0.019
4.263ArgAsp: 4.263 ± 0.053
4.163ArgGlu: 4.163 ± 0.056
3.165ArgPhe: 3.165 ± 0.038
5.474ArgGly: 5.474 ± 0.054
1.958ArgHis: 1.958 ± 0.037
3.681ArgIle: 3.681 ± 0.042
1.966ArgLys: 1.966 ± 0.032
9.138ArgLeu: 9.138 ± 0.082
1.993ArgMet: 1.993 ± 0.031
1.702ArgAsn: 1.702 ± 0.032
4.257ArgPro: 4.257 ± 0.056
2.458ArgGln: 2.458 ± 0.038
7.035ArgArg: 7.035 ± 0.078
3.452ArgSer: 3.452 ± 0.047
4.174ArgThr: 4.174 ± 0.043
5.939ArgVal: 5.939 ± 0.057
1.161ArgTrp: 1.161 ± 0.026
1.675ArgTyr: 1.675 ± 0.033
0.0ArgXaa: 0.0 ± 0.0
Ser
5.651SerAla: 5.651 ± 0.064
0.398SerCys: 0.398 ± 0.014
2.358SerAsp: 2.358 ± 0.037
2.16SerGlu: 2.16 ± 0.04
1.843SerPhe: 1.843 ± 0.031
4.881SerGly: 4.881 ± 0.063
0.932SerHis: 0.932 ± 0.023
1.993SerIle: 1.993 ± 0.036
1.234SerLys: 1.234 ± 0.032
4.744SerLeu: 4.744 ± 0.054
1.151SerMet: 1.151 ± 0.023
1.097SerAsn: 1.097 ± 0.026
2.542SerPro: 2.542 ± 0.032
1.218SerGln: 1.218 ± 0.023
3.116SerArg: 3.116 ± 0.047
2.193SerSer: 2.193 ± 0.041
2.326SerThr: 2.326 ± 0.039
3.787SerVal: 3.787 ± 0.047
0.667SerTrp: 0.667 ± 0.021
1.066SerTyr: 1.066 ± 0.022
0.0SerXaa: 0.0 ± 0.0
Thr
6.988ThrAla: 6.988 ± 0.074
0.433ThrCys: 0.433 ± 0.016
2.773ThrAsp: 2.773 ± 0.038
2.528ThrGlu: 2.528 ± 0.033
1.758ThrPhe: 1.758 ± 0.028
5.243ThrGly: 5.243 ± 0.053
1.038ThrHis: 1.038 ± 0.025
2.356ThrIle: 2.356 ± 0.042
1.197ThrLys: 1.197 ± 0.027
6.419ThrLeu: 6.419 ± 0.066
1.162ThrMet: 1.162 ± 0.024
1.135ThrAsn: 1.135 ± 0.028
3.495ThrPro: 3.495 ± 0.047
1.32ThrGln: 1.32 ± 0.027
3.487ThrArg: 3.487 ± 0.043
2.23ThrSer: 2.23 ± 0.041
2.776ThrThr: 2.776 ± 0.047
5.146ThrVal: 5.146 ± 0.062
0.66ThrTrp: 0.66 ± 0.018
1.117ThrTyr: 1.117 ± 0.027
0.0ThrXaa: 0.0 ± 0.0
Val
10.948ValAla: 10.948 ± 0.089
0.78ValCys: 0.78 ± 0.017
4.321ValAsp: 4.321 ± 0.042
5.19ValGlu: 5.19 ± 0.05
2.795ValPhe: 2.795 ± 0.043
6.338ValGly: 6.338 ± 0.063
1.634ValHis: 1.634 ± 0.032
3.322ValIle: 3.322 ± 0.04
2.224ValLys: 2.224 ± 0.039
8.88ValLeu: 8.88 ± 0.08
1.797ValMet: 1.797 ± 0.029
1.993ValAsn: 1.993 ± 0.042
4.467ValPro: 4.467 ± 0.053
2.369ValGln: 2.369 ± 0.038
6.167ValArg: 6.167 ± 0.07
4.041ValSer: 4.041 ± 0.045
4.726ValThr: 4.726 ± 0.056
7.218ValVal: 7.218 ± 0.075
1.031ValTrp: 1.031 ± 0.023
1.655ValTyr: 1.655 ± 0.028
0.0ValXaa: 0.0 ± 0.0
Trp
1.351TrpAla: 1.351 ± 0.027
0.129TrpCys: 0.129 ± 0.008
0.689TrpAsp: 0.689 ± 0.019
0.619TrpGlu: 0.619 ± 0.02
0.504TrpPhe: 0.504 ± 0.018
0.957TrpGly: 0.957 ± 0.019
0.342TrpHis: 0.342 ± 0.013
0.601TrpIle: 0.601 ± 0.017
0.397TrpLys: 0.397 ± 0.017
1.718TrpLeu: 1.718 ± 0.032
0.338TrpMet: 0.338 ± 0.012
0.365TrpAsn: 0.365 ± 0.014
0.704TrpPro: 0.704 ± 0.021
0.497TrpGln: 0.497 ± 0.016
1.221TrpArg: 1.221 ± 0.027
0.71TrpSer: 0.71 ± 0.018
0.831TrpThr: 0.831 ± 0.024
0.894TrpVal: 0.894 ± 0.021
0.252TrpTrp: 0.252 ± 0.011
0.294TrpTyr: 0.294 ± 0.012
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.541TyrAla: 2.541 ± 0.039
0.232TyrCys: 0.232 ± 0.012
1.327TyrAsp: 1.327 ± 0.029
1.139TyrGlu: 1.139 ± 0.028
0.745TyrPhe: 0.745 ± 0.021
2.111TyrGly: 2.111 ± 0.034
0.448TyrHis: 0.448 ± 0.015
0.723TyrIle: 0.723 ± 0.02
0.539TyrLys: 0.539 ± 0.017
2.143TyrLeu: 2.143 ± 0.037
0.381TyrMet: 0.381 ± 0.015
0.515TyrAsn: 0.515 ± 0.019
1.056TyrPro: 1.056 ± 0.025
0.642TyrGln: 0.642 ± 0.02
1.796TyrArg: 1.796 ± 0.032
0.897TyrSer: 0.897 ± 0.025
1.1TyrThr: 1.1 ± 0.026
1.629TyrVal: 1.629 ± 0.032
0.329TyrTrp: 0.329 ± 0.014
0.501TyrTyr: 0.501 ± 0.019
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 6297 proteins (1943342 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