Amino acid dipepetide frequency for Cryobacterium sp. MLB-32

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
18.613AlaAla: 18.613 ± 0.218
0.747AlaCys: 0.747 ± 0.037
7.319AlaAsp: 7.319 ± 0.097
7.119AlaGlu: 7.119 ± 0.107
3.869AlaPhe: 3.869 ± 0.065
11.383AlaGly: 11.383 ± 0.134
2.296AlaHis: 2.296 ± 0.056
5.971AlaIle: 5.971 ± 0.088
2.635AlaLys: 2.635 ± 0.071
13.991AlaLeu: 13.991 ± 0.172
2.586AlaMet: 2.586 ± 0.053
2.648AlaAsn: 2.648 ± 0.053
5.677AlaPro: 5.677 ± 0.105
3.895AlaGln: 3.895 ± 0.07
8.159AlaArg: 8.159 ± 0.115
7.309AlaSer: 7.309 ± 0.097
7.53AlaThr: 7.53 ± 0.101
11.12AlaVal: 11.12 ± 0.139
1.656AlaTrp: 1.656 ± 0.045
2.246AlaTyr: 2.246 ± 0.045
0.001AlaXaa: 0.001 ± 0.001
Cys
0.723CysAla: 0.723 ± 0.032
0.078CysCys: 0.078 ± 0.01
0.359CysAsp: 0.359 ± 0.019
0.303CysGlu: 0.303 ± 0.018
0.206CysPhe: 0.206 ± 0.017
0.634CysGly: 0.634 ± 0.027
0.116CysHis: 0.116 ± 0.012
0.255CysIle: 0.255 ± 0.019
0.081CysLys: 0.081 ± 0.01
0.545CysLeu: 0.545 ± 0.024
0.113CysMet: 0.113 ± 0.011
0.123CysAsn: 0.123 ± 0.012
0.3CysPro: 0.3 ± 0.021
0.142CysGln: 0.142 ± 0.014
0.374CysArg: 0.374 ± 0.021
0.4CysSer: 0.4 ± 0.02
0.4CysThr: 0.4 ± 0.02
0.519CysVal: 0.519 ± 0.023
0.065CysTrp: 0.065 ± 0.009
0.132CysTyr: 0.132 ± 0.013
0.0CysXaa: 0.0 ± 0.0
Asp
7.477AspAla: 7.477 ± 0.101
0.29AspCys: 0.29 ± 0.021
3.356AspAsp: 3.356 ± 0.067
3.644AspGlu: 3.644 ± 0.072
1.956AspPhe: 1.956 ± 0.043
5.126AspGly: 5.126 ± 0.098
1.145AspHis: 1.145 ± 0.036
2.539AspIle: 2.539 ± 0.06
1.149AspLys: 1.149 ± 0.042
6.1AspLeu: 6.1 ± 0.088
0.985AspMet: 0.985 ± 0.034
1.244AspAsn: 1.244 ± 0.039
3.557AspPro: 3.557 ± 0.065
1.674AspGln: 1.674 ± 0.047
3.76AspArg: 3.76 ± 0.064
3.174AspSer: 3.174 ± 0.067
3.197AspThr: 3.197 ± 0.064
5.077AspVal: 5.077 ± 0.078
0.854AspTrp: 0.854 ± 0.033
1.298AspTyr: 1.298 ± 0.042
0.001AspXaa: 0.001 ± 0.001
Glu
6.279GluAla: 6.279 ± 0.093
0.308GluCys: 0.308 ± 0.019
2.324GluAsp: 2.324 ± 0.051
2.465GluGlu: 2.465 ± 0.059
1.839GluPhe: 1.839 ± 0.045
3.43GluGly: 3.43 ± 0.06
1.376GluHis: 1.376 ± 0.042
2.801GluIle: 2.801 ± 0.061
1.513GluLys: 1.513 ± 0.045
6.17GluLeu: 6.17 ± 0.106
0.993GluMet: 0.993 ± 0.034
1.425GluAsn: 1.425 ± 0.04
2.595GluPro: 2.595 ± 0.053
1.955GluGln: 1.955 ± 0.051
4.299GluArg: 4.299 ± 0.08
3.089GluSer: 3.089 ± 0.061
3.107GluThr: 3.107 ± 0.056
4.089GluVal: 4.089 ± 0.073
0.816GluTrp: 0.816 ± 0.031
1.116GluTyr: 1.116 ± 0.036
0.0GluXaa: 0.0 ± 0.0
Phe
4.209PheAla: 4.209 ± 0.076
0.244PheCys: 0.244 ± 0.018
2.336PheAsp: 2.336 ± 0.049
1.764PheGlu: 1.764 ± 0.046
1.211PhePhe: 1.211 ± 0.042
3.532PheGly: 3.532 ± 0.068
0.616PheHis: 0.616 ± 0.023
1.434PheIle: 1.434 ± 0.044
0.597PheLys: 0.597 ± 0.027
3.179PheLeu: 3.179 ± 0.067
0.571PheMet: 0.571 ± 0.027
0.817PheAsn: 0.817 ± 0.03
1.479PhePro: 1.479 ± 0.041
0.805PheGln: 0.805 ± 0.031
1.719PheArg: 1.719 ± 0.048
2.193PheSer: 2.193 ± 0.049
2.502PheThr: 2.502 ± 0.053
2.988PheVal: 2.988 ± 0.063
0.478PheTrp: 0.478 ± 0.026
0.748PheTyr: 0.748 ± 0.032
0.0PheXaa: 0.0 ± 0.0
Gly
9.936GlyAla: 9.936 ± 0.123
0.631GlyCys: 0.631 ± 0.032
4.396GlyAsp: 4.396 ± 0.08
4.374GlyGlu: 4.374 ± 0.065
3.382GlyPhe: 3.382 ± 0.059
7.003GlyGly: 7.003 ± 0.119
1.88GlyHis: 1.88 ± 0.043
4.98GlyIle: 4.98 ± 0.083
2.25GlyLys: 2.25 ± 0.057
9.415GlyLeu: 9.415 ± 0.116
1.966GlyMet: 1.966 ± 0.051
1.914GlyAsn: 1.914 ± 0.048
3.676GlyPro: 3.676 ± 0.073
2.594GlyGln: 2.594 ± 0.053
5.674GlyArg: 5.674 ± 0.09
5.597GlySer: 5.597 ± 0.08
5.844GlyThr: 5.844 ± 0.106
7.629GlyVal: 7.629 ± 0.099
1.507GlyTrp: 1.507 ± 0.041
2.337GlyTyr: 2.337 ± 0.054
0.0GlyXaa: 0.0 ± 0.0
His
2.157HisAla: 2.157 ± 0.051
0.141HisCys: 0.141 ± 0.012
1.323HisAsp: 1.323 ± 0.037
1.169HisGlu: 1.169 ± 0.038
0.601HisPhe: 0.601 ± 0.029
1.942HisGly: 1.942 ± 0.05
0.523HisHis: 0.523 ± 0.028
0.89HisIle: 0.89 ± 0.031
0.347HisLys: 0.347 ± 0.021
2.081HisLeu: 2.081 ± 0.05
0.345HisMet: 0.345 ± 0.021
0.5HisAsn: 0.5 ± 0.025
1.482HisPro: 1.482 ± 0.04
0.558HisGln: 0.558 ± 0.023
1.498HisArg: 1.498 ± 0.043
1.174HisSer: 1.174 ± 0.036
1.128HisThr: 1.128 ± 0.034
1.664HisVal: 1.664 ± 0.042
0.237HisTrp: 0.237 ± 0.016
0.452HisTyr: 0.452 ± 0.023
0.0HisXaa: 0.0 ± 0.0
Ile
6.702IleAla: 6.702 ± 0.091
0.296IleCys: 0.296 ± 0.02
3.595IleAsp: 3.595 ± 0.06
2.845IleGlu: 2.845 ± 0.062
1.475IlePhe: 1.475 ± 0.044
4.756IleGly: 4.756 ± 0.082
0.854IleHis: 0.854 ± 0.03
2.311IleIle: 2.311 ± 0.06
1.01IleLys: 1.01 ± 0.034
4.401IleLeu: 4.401 ± 0.084
0.841IleMet: 0.841 ± 0.033
1.27IleAsn: 1.27 ± 0.037
2.586IlePro: 2.586 ± 0.054
1.091IleGln: 1.091 ± 0.039
2.895IleArg: 2.895 ± 0.065
2.872IleSer: 2.872 ± 0.062
3.333IleThr: 3.333 ± 0.062
4.988IleVal: 4.988 ± 0.079
0.531IleTrp: 0.531 ± 0.028
0.911IleTyr: 0.911 ± 0.03
0.0IleXaa: 0.0 ± 0.0
Lys
2.746LysAla: 2.746 ± 0.065
0.078LysCys: 0.078 ± 0.009
1.177LysAsp: 1.177 ± 0.041
0.978LysGlu: 0.978 ± 0.037
0.631LysPhe: 0.631 ± 0.03
1.634LysGly: 1.634 ± 0.041
0.467LysHis: 0.467 ± 0.021
1.2LysIle: 1.2 ± 0.038
0.891LysLys: 0.891 ± 0.036
2.11LysLeu: 2.11 ± 0.055
0.515LysMet: 0.515 ± 0.025
0.736LysAsn: 0.736 ± 0.035
1.391LysPro: 1.391 ± 0.044
0.758LysGln: 0.758 ± 0.033
1.664LysArg: 1.664 ± 0.047
1.371LysSer: 1.371 ± 0.04
1.598LysThr: 1.598 ± 0.051
1.781LysVal: 1.781 ± 0.05
0.265LysTrp: 0.265 ± 0.017
0.539LysTyr: 0.539 ± 0.028
0.0LysXaa: 0.0 ± 0.0
Leu
14.313LeuAla: 14.313 ± 0.159
0.612LeuCys: 0.612 ± 0.026
6.368LeuAsp: 6.368 ± 0.092
5.054LeuGlu: 5.054 ± 0.093
3.24LeuPhe: 3.24 ± 0.071
9.627LeuGly: 9.627 ± 0.125
1.977LeuHis: 1.977 ± 0.054
5.143LeuIle: 5.143 ± 0.1
2.034LeuLys: 2.034 ± 0.05
10.955LeuLeu: 10.955 ± 0.147
1.857LeuMet: 1.857 ± 0.048
2.442LeuAsn: 2.442 ± 0.053
5.341LeuPro: 5.341 ± 0.082
2.628LeuGln: 2.628 ± 0.048
6.921LeuArg: 6.921 ± 0.091
6.614LeuSer: 6.614 ± 0.094
7.163LeuThr: 7.163 ± 0.086
9.511LeuVal: 9.511 ± 0.128
1.274LeuTrp: 1.274 ± 0.045
1.771LeuTyr: 1.771 ± 0.05
0.0LeuXaa: 0.0 ± 0.0
Met
2.286MetAla: 2.286 ± 0.052
0.134MetCys: 0.134 ± 0.013
0.867MetAsp: 0.867 ± 0.03
0.735MetGlu: 0.735 ± 0.031
0.658MetPhe: 0.658 ± 0.03
1.383MetGly: 1.383 ± 0.038
0.389MetHis: 0.389 ± 0.02
1.053MetIle: 1.053 ± 0.034
0.564MetLys: 0.564 ± 0.027
2.138MetLeu: 2.138 ± 0.047
0.389MetMet: 0.389 ± 0.025
0.621MetAsn: 0.621 ± 0.027
1.171MetPro: 1.171 ± 0.038
0.613MetGln: 0.613 ± 0.026
1.344MetArg: 1.344 ± 0.041
1.536MetSer: 1.536 ± 0.04
1.892MetThr: 1.892 ± 0.036
1.525MetVal: 1.525 ± 0.045
0.236MetTrp: 0.236 ± 0.018
0.308MetTyr: 0.308 ± 0.019
0.0MetXaa: 0.0 ± 0.0
Asn
2.9AsnAla: 2.9 ± 0.064
0.141AsnCys: 0.141 ± 0.013
1.386AsnAsp: 1.386 ± 0.044
1.223AsnGlu: 1.223 ± 0.036
0.851AsnPhe: 0.851 ± 0.034
2.212AsnGly: 2.212 ± 0.05
0.437AsnHis: 0.437 ± 0.024
1.061AsnIle: 1.061 ± 0.037
0.545AsnLys: 0.545 ± 0.025
2.505AsnLeu: 2.505 ± 0.058
0.458AsnMet: 0.458 ± 0.021
0.671AsnAsn: 0.671 ± 0.033
1.768AsnPro: 1.768 ± 0.047
0.741AsnGln: 0.741 ± 0.032
1.521AsnArg: 1.521 ± 0.043
1.366AsnSer: 1.366 ± 0.038
1.463AsnThr: 1.463 ± 0.036
2.071AsnVal: 2.071 ± 0.053
0.335AsnTrp: 0.335 ± 0.021
0.632AsnTyr: 0.632 ± 0.027
0.0AsnXaa: 0.0 ± 0.0
Pro
6.415ProAla: 6.415 ± 0.094
0.214ProCys: 0.214 ± 0.017
3.451ProAsp: 3.451 ± 0.072
3.369ProGlu: 3.369 ± 0.062
1.717ProPhe: 1.717 ± 0.044
4.768ProGly: 4.768 ± 0.087
1.073ProHis: 1.073 ± 0.037
2.203ProIle: 2.203 ± 0.052
1.067ProLys: 1.067 ± 0.038
4.98ProLeu: 4.98 ± 0.076
0.953ProMet: 0.953 ± 0.03
1.29ProAsn: 1.29 ± 0.041
2.002ProPro: 2.002 ± 0.058
1.448ProGln: 1.448 ± 0.038
3.003ProArg: 3.003 ± 0.061
3.027ProSer: 3.027 ± 0.071
3.633ProThr: 3.633 ± 0.065
4.812ProVal: 4.812 ± 0.073
0.812ProTrp: 0.812 ± 0.032
0.946ProTyr: 0.946 ± 0.034
0.001ProXaa: 0.001 ± 0.001
Gln
3.646GlnAla: 3.646 ± 0.071
0.136GlnCys: 0.136 ± 0.013
1.253GlnAsp: 1.253 ± 0.04
1.208GlnGlu: 1.208 ± 0.037
0.98GlnPhe: 0.98 ± 0.031
2.087GlnGly: 2.087 ± 0.045
0.664GlnHis: 0.664 ± 0.028
1.662GlnIle: 1.662 ± 0.043
0.776GlnLys: 0.776 ± 0.036
3.237GlnLeu: 3.237 ± 0.061
0.611GlnMet: 0.611 ± 0.025
0.825GlnAsn: 0.825 ± 0.035
1.473GlnPro: 1.473 ± 0.048
1.107GlnGln: 1.107 ± 0.036
2.199GlnArg: 2.199 ± 0.056
1.789GlnSer: 1.789 ± 0.04
1.699GlnThr: 1.699 ± 0.043
2.534GlnVal: 2.534 ± 0.054
0.409GlnTrp: 0.409 ± 0.02
0.644GlnTyr: 0.644 ± 0.028
0.0GlnXaa: 0.0 ± 0.0
Arg
7.804ArgAla: 7.804 ± 0.105
0.369ArgCys: 0.369 ± 0.021
3.709ArgAsp: 3.709 ± 0.073
3.674ArgGlu: 3.674 ± 0.075
2.355ArgPhe: 2.355 ± 0.054
4.816ArgGly: 4.816 ± 0.083
1.463ArgHis: 1.463 ± 0.038
3.493ArgIle: 3.493 ± 0.057
1.525ArgLys: 1.525 ± 0.046
6.904ArgLeu: 6.904 ± 0.098
1.676ArgMet: 1.676 ± 0.043
1.512ArgAsn: 1.512 ± 0.039
3.199ArgPro: 3.199 ± 0.063
2.11ArgGln: 2.11 ± 0.051
5.257ArgArg: 5.257 ± 0.089
4.265ArgSer: 4.265 ± 0.065
3.956ArgThr: 3.956 ± 0.071
5.463ArgVal: 5.463 ± 0.084
0.962ArgTrp: 0.962 ± 0.032
1.518ArgTyr: 1.518 ± 0.041
0.0ArgXaa: 0.0 ± 0.0
Ser
7.707SerAla: 7.707 ± 0.093
0.301SerCys: 0.301 ± 0.017
3.377SerAsp: 3.377 ± 0.059
2.893SerGlu: 2.893 ± 0.052
2.157SerPhe: 2.157 ± 0.048
6.17SerGly: 6.17 ± 0.089
1.169SerHis: 1.169 ± 0.04
3.01SerIle: 3.01 ± 0.055
1.362SerLys: 1.362 ± 0.044
6.025SerLeu: 6.025 ± 0.09
1.434SerMet: 1.434 ± 0.041
1.411SerAsn: 1.411 ± 0.04
3.204SerPro: 3.204 ± 0.063
1.572SerGln: 1.572 ± 0.04
3.842SerArg: 3.842 ± 0.064
3.941SerSer: 3.941 ± 0.068
4.207SerThr: 4.207 ± 0.073
5.463SerVal: 5.463 ± 0.09
0.948SerTrp: 0.948 ± 0.032
1.329SerTyr: 1.329 ± 0.037
0.0SerXaa: 0.0 ± 0.0
Thr
8.033ThrAla: 8.033 ± 0.111
0.335ThrCys: 0.335 ± 0.016
3.856ThrAsp: 3.856 ± 0.068
3.292ThrGlu: 3.292 ± 0.064
2.048ThrPhe: 2.048 ± 0.045
6.17ThrGly: 6.17 ± 0.098
1.304ThrHis: 1.304 ± 0.042
3.311ThrIle: 3.311 ± 0.061
1.457ThrLys: 1.457 ± 0.044
6.481ThrLeu: 6.481 ± 0.095
1.243ThrMet: 1.243 ± 0.035
1.618ThrAsn: 1.618 ± 0.045
3.988ThrPro: 3.988 ± 0.072
1.629ThrGln: 1.629 ± 0.045
3.807ThrArg: 3.807 ± 0.055
3.948ThrSer: 3.948 ± 0.07
4.218ThrThr: 4.218 ± 0.082
6.352ThrVal: 6.352 ± 0.097
0.872ThrTrp: 0.872 ± 0.03
1.262ThrTyr: 1.262 ± 0.037
0.0ThrXaa: 0.0 ± 0.0
Val
11.002ValAla: 11.002 ± 0.129
0.555ValCys: 0.555 ± 0.026
5.216ValAsp: 5.216 ± 0.077
4.328ValGlu: 4.328 ± 0.072
2.93ValPhe: 2.93 ± 0.065
7.366ValGly: 7.366 ± 0.106
1.83ValHis: 1.83 ± 0.047
4.768ValIle: 4.768 ± 0.088
1.914ValLys: 1.914 ± 0.048
9.559ValLeu: 9.559 ± 0.143
1.645ValMet: 1.645 ± 0.043
2.218ValAsn: 2.218 ± 0.05
4.511ValPro: 4.511 ± 0.072
2.425ValGln: 2.425 ± 0.048
5.467ValArg: 5.467 ± 0.093
5.572ValSer: 5.572 ± 0.079
6.316ValThr: 6.316 ± 0.109
8.415ValVal: 8.415 ± 0.117
1.052ValTrp: 1.052 ± 0.033
1.602ValTyr: 1.602 ± 0.042
0.0ValXaa: 0.0 ± 0.0
Trp
1.48TrpAla: 1.48 ± 0.043
0.101TrpCys: 0.101 ± 0.01
0.684TrpAsp: 0.684 ± 0.028
0.537TrpGlu: 0.537 ± 0.024
0.498TrpPhe: 0.498 ± 0.025
0.994TrpGly: 0.994 ± 0.036
0.324TrpHis: 0.324 ± 0.021
0.679TrpIle: 0.679 ± 0.029
0.394TrpLys: 0.394 ± 0.023
1.755TrpLeu: 1.755 ± 0.049
0.345TrpMet: 0.345 ± 0.021
0.467TrpAsn: 0.467 ± 0.028
0.665TrpPro: 0.665 ± 0.025
0.552TrpGln: 0.552 ± 0.024
1.029TrpArg: 1.029 ± 0.034
0.889TrpSer: 0.889 ± 0.035
0.868TrpThr: 0.868 ± 0.026
1.043TrpVal: 1.043 ± 0.033
0.307TrpTrp: 0.307 ± 0.02
0.302TrpTyr: 0.302 ± 0.018
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.345TyrAla: 2.345 ± 0.06
0.158TyrCys: 0.158 ± 0.014
1.25TyrAsp: 1.25 ± 0.039
1.015TyrGlu: 1.015 ± 0.036
0.818TyrPhe: 0.818 ± 0.032
1.952TyrGly: 1.952 ± 0.046
0.309TyrHis: 0.309 ± 0.02
0.798TyrIle: 0.798 ± 0.037
0.42TyrLys: 0.42 ± 0.021
2.314TyrLeu: 2.314 ± 0.055
0.31TyrMet: 0.31 ± 0.018
0.536TyrAsn: 0.536 ± 0.028
1.116TyrPro: 1.116 ± 0.039
0.642TyrGln: 0.642 ± 0.028
1.597TyrArg: 1.597 ± 0.045
1.396TyrSer: 1.396 ± 0.043
1.174TyrThr: 1.174 ± 0.04
1.645TyrVal: 1.645 ± 0.042
0.299TyrTrp: 0.299 ± 0.02
0.486TyrTyr: 0.486 ± 0.025
0.0TyrXaa: 0.0 ± 0.0
Xaa
0.001XaaAla: 0.001 ± 0.001
0.0XaaCys: 0.0 ± 0.0
0.001XaaAsp: 0.001 ± 0.001
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
0.001XaaPro: 0.001 ± 0.001
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 3198 proteins (903226 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