YBR056W-A 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] 3 4.5%
Arg[R] 2 3.0%
Asn[N] 3 4.5%
Asp[D] 3 4.5%
Cys[C] 14 21.2%
Gln[Q] 8 12.1%
Glu[E] 0 0.0%
Gly[G] 4 6.1%
His[H] 1 1.5%
Ile[I] 4 6.1%
Leu[L] 4 6.1%
Lys[K] 0 0.0%
Met[M] 3 4.5%
Phe[F] 0 0.0%
Pro[P] 9 13.6%
Ser[S] 2 3.0%
Thr[T] 0 0.0%
Trp[W] 0 0.0%
Tyr[Y] 5 7.6%
Val[V] 1 1.5%
Total Length 66

Instability index
Instability index (II) 64.62
This classifies the protein as unstable

Atomic composition
Carbon 305
Hydrogen 469
Nitrogen 85
Oxygen 91
Sulfur 17
Total number of atoms 967
Formula = C305H469N85O91S17

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 8325 M-1 cm-1
assuming NO Cys residues appear as half cystines 7450 M-1 cm-1
assuming all Cys residues are reduced 7450 M-1 cm-1
assuming all pairs of Cys residues form cystines 8325 M-1 cm-1

Aliphatic index
Aliphatic index 56.21

Coding Region Translation Calculations
Codon Bias 0.220
Codon Adaptation Index 0.178
Frequency of Optimal Codons 0.540
Hydropathicity of Protein -0.027
Aromaticity Score 0.076