SMC4/YLR086W 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] 64 4.5%
Arg[R] 74 5.2%
Asn[N] 79 5.6%
Asp[D] 84 5.9%
Cys[C] 9 0.6%
Gln[Q] 71 5.0%
Glu[E] 159 11.2%
Gly[G] 53 3.7%
His[H] 22 1.6%
Ile[I] 72 5.1%
Leu[L] 163 11.5%
Lys[K] 151 10.6%
Met[M] 33 2.3%
Phe[F] 39 2.8%
Pro[P] 37 2.6%
Ser[S] 131 9.2%
Thr[T] 65 4.6%
Trp[W] 2 0.1%
Tyr[Y] 30 2.1%
Val[V] 80 5.6%
Total Length 1418

Instability index
Instability index (II) 46.78
This classifies the protein as unstable

Atomic composition
Carbon 7065
Hydrogen 11567
Nitrogen 1987
Oxygen 2281
Sulfur 42
Total number of atoms 22942
Formula = C7065H11567N1987O2281S42

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 56200 M-1 cm-1
assuming NO Cys residues appear as half cystines 55700 M-1 cm-1
assuming all Cys residues are reduced 55700 M-1 cm-1
assuming all pairs of Cys residues form cystines 56200 M-1 cm-1

Aliphatic index
Aliphatic index 85.51

Coding Region Translation Calculations
Codon Bias 0.084
Codon Adaptation Index 0.147
Frequency of Optimal Codons 0.458
Hydropathicity of Protein -0.741
Aromaticity Score 0.050