VRG4/YGL225W 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] 29 8.6%
Arg[R] 7 2.1%
Asn[N] 20 5.9%
Asp[D] 8 2.4%
Cys[C] 6 1.8%
Gln[Q] 8 2.4%
Glu[E] 5 1.5%
Gly[G] 19 5.6%
His[H] 2 0.6%
Ile[I] 28 8.3%
Leu[L] 41 12.2%
Lys[K] 17 5.0%
Met[M] 12 3.6%
Phe[F] 26 7.7%
Pro[P] 9 2.7%
Ser[S] 37 11.0%
Thr[T] 20 5.9%
Trp[W] 6 1.8%
Tyr[Y] 11 3.3%
Val[V] 26 7.7%
Total Length 337

Instability index
Instability index (II) 26.84
This classifies the protein as stable

Atomic composition
Carbon 1715
Hydrogen 2677
Nitrogen 413
Oxygen 460
Sulfur 18
Total number of atoms 5283
Formula = C1715H2677N413O460S18

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 49765 M-1 cm-1
assuming NO Cys residues appear as half cystines 49390 M-1 cm-1
assuming all Cys residues are reduced 49390 M-1 cm-1
assuming all pairs of Cys residues form cystines 49765 M-1 cm-1

Aliphatic index
Aliphatic index 110.83

Coding Region Translation Calculations
Codon Bias 0.425
Codon Adaptation Index 0.318
Frequency of Optimal Codons 0.655
Hydropathicity of Protein 0.655
Aromaticity Score 0.128