SCW4/YGR279C 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] 55 14.2%
Arg[R] 6 1.6%
Asn[N] 22 5.7%
Asp[D] 20 5.2%
Cys[C] 5 1.3%
Gln[Q] 17 4.4%
Glu[E] 17 4.4%
Gly[G] 24 6.2%
His[H] 3 0.8%
Ile[I] 16 4.1%
Leu[L] 17 4.4%
Lys[K] 18 4.7%
Met[M] 2 0.5%
Phe[F] 9 2.3%
Pro[P] 11 2.8%
Ser[S] 57 14.8%
Thr[T] 30 7.8%
Trp[W] 6 1.6%
Tyr[Y] 15 3.9%
Val[V] 36 9.3%
Total Length 386

Instability index
Instability index (II) 32.36
This classifies the protein as stable

Atomic composition
Carbon 1744
Hydrogen 2723
Nitrogen 473
Oxygen 602
Sulfur 7
Total number of atoms 5549
Formula = C1744H2723N473O602S7

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 55600 M-1 cm-1
assuming NO Cys residues appear as half cystines 55350 M-1 cm-1
assuming all Cys residues are reduced 55350 M-1 cm-1
assuming all pairs of Cys residues form cystines 55600 M-1 cm-1

Aliphatic index
Aliphatic index 74.64

Coding Region Translation Calculations
Codon Bias 0.659
Codon Adaptation Index 0.546
Frequency of Optimal Codons 0.796
Hydropathicity of Protein -0.164
Aromaticity Score 0.078