SNO4/YMR322C 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] 23 9.7%
Arg[R] 9 3.8%
Asn[N] 12 5.1%
Asp[D] 15 6.3%
Cys[C] 1 0.4%
Gln[Q] 1 0.4%
Glu[E] 12 5.1%
Gly[G] 21 8.9%
His[H] 6 2.5%
Ile[I] 19 8.0%
Leu[L] 18 7.6%
Lys[K] 19 8.0%
Met[M] 2 0.8%
Phe[F] 15 6.3%
Pro[P] 9 3.8%
Ser[S] 15 6.3%
Thr[T] 16 6.8%
Trp[W] 2 0.8%
Tyr[Y] 10 4.2%
Val[V] 12 5.1%
Total Length 237

Instability index
Instability index (II) 33.69
This classifies the protein as stable

Atomic composition
Carbon 1184
Hydrogen 1830
Nitrogen 310
Oxygen 346
Sulfur 3
Total number of atoms 3673
Formula = C1184H1830N310O346S3

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 25900 M-1 cm-1
assuming NO Cys residues appear as half cystines 25900 M-1 cm-1
assuming all Cys residues are reduced 25900 M-1 cm-1
assuming all pairs of Cys residues form cystines 25900 M-1 cm-1

Aliphatic index
Aliphatic index 85.27

Coding Region Translation Calculations
Codon Bias 0.124
Codon Adaptation Index 0.152
Frequency of Optimal Codons 0.481
Hydropathicity of Protein -0.171
Aromaticity Score 0.114