SOD2/YHR008C 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] 24 10.3%
Arg[R] 5 2.1%
Asn[N] 15 6.4%
Asp[D] 11 4.7%
Cys[C] 1 0.4%
Gln[Q] 13 5.6%
Glu[E] 11 4.7%
Gly[G] 20 8.6%
His[H] 6 2.6%
Ile[I] 11 4.7%
Leu[L] 23 9.9%
Lys[K] 19 8.2%
Met[M] 2 0.9%
Phe[F] 11 4.7%
Pro[P] 9 3.9%
Ser[S] 10 4.3%
Thr[T] 16 6.9%
Trp[W] 6 2.6%
Tyr[Y] 8 3.4%
Val[V] 12 5.2%
Total Length 233

Instability index
Instability index (II) 27.66
This classifies the protein as stable

Atomic composition
Carbon 1169
Hydrogen 1799
Nitrogen 313
Oxygen 340
Sulfur 3
Total number of atoms 3624
Formula = C1169H1799N313O340S3

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 44920 M-1 cm-1
assuming NO Cys residues appear as half cystines 44920 M-1 cm-1
assuming all Cys residues are reduced 44920 M-1 cm-1
assuming all pairs of Cys residues form cystines 44920 M-1 cm-1

Aliphatic index
Aliphatic index 82.15

Coding Region Translation Calculations
Codon Bias 0.333
Codon Adaptation Index 0.226
Frequency of Optimal Codons 0.600
Hydropathicity of Protein -0.346
Aromaticity Score 0.107