SIC1/YLR079W 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] 12 4.2%
Arg[R] 23 8.1%
Asn[N] 19 6.7%
Asp[D] 15 5.3%
Cys[C] 0 0.0%
Gln[Q] 16 5.6%
Glu[E] 27 9.5%
Gly[G] 11 3.9%
His[H] 4 1.4%
Ile[I] 11 3.9%
Leu[L] 19 6.7%
Lys[K] 20 7.0%
Met[M] 5 1.8%
Phe[F] 11 3.9%
Pro[P] 27 9.5%
Ser[S] 25 8.8%
Thr[T] 20 7.0%
Trp[W] 1 0.4%
Tyr[Y] 2 0.7%
Val[V] 16 5.6%
Total Length 284

Instability index
Instability index (II) 65.74
This classifies the protein as unstable

Atomic composition
Carbon 1394
Hydrogen 2245
Nitrogen 417
Oxygen 451
Sulfur 5
Total number of atoms 4512
Formula = C1394H2245N417O451S5

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 8480 M-1 cm-1

Aliphatic index
Aliphatic index 61.76

Coding Region Translation Calculations
Codon Bias 0.017
Codon Adaptation Index 0.104
Frequency of Optimal Codons 0.406
Hydropathicity of Protein -1.050
Aromaticity Score 0.049