CHS7/YHR142W 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] 21 6.6%
Arg[R] 6 1.9%
Asn[N] 14 4.4%
Asp[D] 16 5.1%
Cys[C] 9 2.8%
Gln[Q] 6 1.9%
Glu[E] 4 1.3%
Gly[G] 25 7.9%
His[H] 4 1.3%
Ile[I] 31 9.8%
Leu[L] 40 12.7%
Lys[K] 10 3.2%
Met[M] 9 2.8%
Phe[F] 28 8.9%
Pro[P] 7 2.2%
Ser[S] 20 6.3%
Thr[T] 19 6.0%
Trp[W] 5 1.6%
Tyr[Y] 12 3.8%
Val[V] 30 9.5%
Total Length 316

Instability index
Instability index (II) 23.31
This classifies the protein as stable

Atomic composition
Carbon 1637
Hydrogen 2511
Nitrogen 377
Oxygen 428
Sulfur 18
Total number of atoms 4971
Formula = C1637H2511N377O428S18

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 45880 M-1 cm-1
assuming NO Cys residues appear as half cystines 45380 M-1 cm-1
assuming all Cys residues are reduced 45380 M-1 cm-1
assuming all pairs of Cys residues form cystines 45880 M-1 cm-1

Aliphatic index
Aliphatic index 121.80

Coding Region Translation Calculations
Codon Bias 0.055
Codon Adaptation Index 0.119
Frequency of Optimal Codons 0.444
Hydropathicity of Protein 0.898
Aromaticity Score 0.142