HOS2/YGL194C 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] 16 3.5%
Arg[R] 18 4.0%
Asn[N] 28 6.2%
Asp[D] 36 8.0%
Cys[C] 8 1.8%
Gln[Q] 9 2.0%
Glu[E] 31 6.9%
Gly[G] 30 6.6%
His[H] 16 3.5%
Ile[I] 29 6.4%
Leu[L] 48 10.6%
Lys[K] 24 5.3%
Met[M] 10 2.2%
Phe[F] 24 5.3%
Pro[P] 22 4.9%
Ser[S] 34 7.5%
Thr[T] 23 5.1%
Trp[W] 2 0.4%
Tyr[Y] 23 5.1%
Val[V] 21 4.6%
Total Length 452

Instability index
Instability index (II) 37.28
This classifies the protein as stable

Atomic composition
Carbon 2302
Hydrogen 3519
Nitrogen 601
Oxygen 704
Sulfur 18
Total number of atoms 7144
Formula = C2302H3519N601O704S18

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 45770 M-1 cm-1
assuming NO Cys residues appear as half cystines 45270 M-1 cm-1
assuming all Cys residues are reduced 45270 M-1 cm-1
assuming all pairs of Cys residues form cystines 45770 M-1 cm-1

Aliphatic index
Aliphatic index 83.45

Coding Region Translation Calculations
Codon Bias -0.008
Codon Adaptation Index 0.123
Frequency of Optimal Codons 0.405
Hydropathicity of Protein -0.389
Aromaticity Score 0.108