YSA1/YBR111C 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] 10 4.3%
Arg[R] 12 5.2%
Asn[N] 9 3.9%
Asp[D] 16 6.9%
Cys[C] 4 1.7%
Gln[Q] 10 4.3%
Glu[E] 19 8.2%
Gly[G] 16 6.9%
His[H] 3 1.3%
Ile[I] 18 7.8%
Leu[L] 19 8.2%
Lys[K] 21 9.1%
Met[M] 6 2.6%
Phe[F] 8 3.5%
Pro[P] 11 4.8%
Ser[S] 12 5.2%
Thr[T] 13 5.6%
Trp[W] 2 0.9%
Tyr[Y] 5 2.2%
Val[V] 17 7.4%
Total Length 231

Instability index
Instability index (II) 45.31
This classifies the protein as unstable

Atomic composition
Carbon 1154
Hydrogen 1863
Nitrogen 315
Oxygen 351
Sulfur 10
Total number of atoms 3693
Formula = C1154H1863N315O351S10

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 18700 M-1 cm-1
assuming NO Cys residues appear as half cystines 18450 M-1 cm-1
assuming all Cys residues are reduced 18450 M-1 cm-1
assuming all pairs of Cys residues form cystines 18700 M-1 cm-1

Aliphatic index
Aliphatic index 88.14

Coding Region Translation Calculations
Codon Bias 0.247
Codon Adaptation Index 0.247
Frequency of Optimal Codons 0.561
Hydropathicity of Protein -0.429
Aromaticity Score 0.065