ERR3/YMR323W Additional Physico-chemical Properties Help

Physico-chemical properties were determined using the ProtParam tool available through ExPASy to analyze the primary protein sequence for atomic composition, extinction coefficient, estimated half-life, instability index and aliphatic index. Transcript translation calculations were determined using CodonW.


A.A. Composition
Ala[A] 46 10.5%
Arg[R] 17 3.9%
Asn[N] 21 4.8%
Asp[D] 27 6.2%
Cys[C] 7 1.6%
Gln[Q] 11 2.5%
Glu[E] 30 6.9%
Gly[G] 38 8.7%
His[H] 10 2.3%
Ile[I] 33 7.6%
Leu[L] 37 8.5%
Lys[K] 26 5.9%
Met[M] 8 1.8%
Phe[F] 12 2.7%
Pro[P] 16 3.7%
Ser[S] 32 7.3%
Thr[T] 19 4.3%
Trp[W] 5 1.1%
Tyr[Y] 14 3.2%
Val[V] 28 6.4%
Total Length 437

Instability index
Instability index (II) 34.71
This classifies the protein as stable

Atomic composition
Carbon 2091
Hydrogen 3309
Nitrogen 571
Oxygen 649
Sulfur 15
Total number of atoms 6635
Formula = C2091H3309N571O649S15

Estimated half-life
Escherichia coli (in vivo) >10 hours
mammalian reticulocytes (in vitro) 30 hours
yeast (in vivo) >20 hours

Extinction Coefficients at 280 nm
assuming ALL Cys residues appear as half cystines 48735 M-1 cm-1
assuming NO Cys residues appear as half cystines 48360 M-1 cm-1
assuming all Cys residues are reduced 48360 M-1 cm-1
assuming all pairs of Cys residues form cystines 48735 M-1 cm-1

Aliphatic index
Aliphatic index 91.58

Coding Region Translation Calculations
Codon Bias 0.180
Codon Adaptation Index 0.157
Frequency of Optimal Codons 0.507
Hydropathicity of Protein -0.156
Aromaticity Score 0.071