SSB2/YNL209W 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] 61 10.0%
Arg[R] 29 4.7%
Asn[N] 22 3.6%
Asp[D] 38 6.2%
Cys[C] 2 0.3%
Gln[Q] 25 4.1%
Glu[E] 49 8.0%
Gly[G] 42 6.9%
His[H] 5 0.8%
Ile[I] 36 5.9%
Leu[L] 51 8.3%
Lys[K] 47 7.7%
Met[M] 9 1.5%
Phe[F] 26 4.2%
Pro[P] 20 3.3%
Ser[S] 44 7.2%
Thr[T] 45 7.3%
Trp[W] 1 0.2%
Tyr[Y] 9 1.5%
Val[V] 52 8.5%
Total Length 613

Instability index
Instability index (II) 36.15
This classifies the protein as stable

Atomic composition
Carbon 2934
Hydrogen 4761
Nitrogen 805
Oxygen 933
Sulfur 11
Total number of atoms 9444
Formula = C2934H4761N805O933S11

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 19035 M-1 cm-1
assuming NO Cys residues appear as half cystines 18910 M-1 cm-1
assuming all Cys residues are reduced 18910 M-1 cm-1
assuming all pairs of Cys residues form cystines 19035 M-1 cm-1

Aliphatic index
Aliphatic index 89.90

Coding Region Translation Calculations
Codon Bias 0.808
Codon Adaptation Index 0.772
Frequency of Optimal Codons 0.886
Hydropathicity of Protein -0.241
Aromaticity Score 0.059