SSE2/YBR169C 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] 54 7.8%
Arg[R] 33 4.8%
Asn[N] 37 5.3%
Asp[D] 55 7.9%
Cys[C] 4 0.6%
Gln[Q] 17 2.5%
Glu[E] 55 7.9%
Gly[G] 34 4.9%
His[H] 9 1.3%
Ile[I] 41 5.9%
Leu[L] 54 7.8%
Lys[K] 63 9.1%
Met[M] 10 1.4%
Phe[F] 28 4.0%
Pro[P] 31 4.5%
Ser[S] 43 6.2%
Thr[T] 48 6.9%
Trp[W] 4 0.6%
Tyr[Y] 21 3.0%
Val[V] 52 7.5%
Total Length 693

Instability index
Instability index (II) 31.99
This classifies the protein as stable

Atomic composition
Carbon 3441
Hydrogen 5479
Nitrogen 931
Oxygen 1080
Sulfur 14
Total number of atoms 10945
Formula = C3441H5479N931O1080S14

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 53540 M-1 cm-1
assuming NO Cys residues appear as half cystines 53290 M-1 cm-1
assuming all Cys residues are reduced 53290 M-1 cm-1
assuming all pairs of Cys residues form cystines 53540 M-1 cm-1

Aliphatic index
Aliphatic index 83.02

Coding Region Translation Calculations
Codon Bias 0.134
Codon Adaptation Index 0.192
Frequency of Optimal Codons 0.492
Hydropathicity of Protein -0.500
Aromaticity Score 0.076