SSN8/YNL025C 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] 18 5.6%
Arg[R] 14 4.3%
Asn[N] 11 3.4%
Asp[D] 14 4.3%
Cys[C] 7 2.2%
Gln[Q] 19 5.9%
Glu[E] 19 5.9%
Gly[G] 6 1.9%
His[H] 13 4.0%
Ile[I] 29 9.0%
Leu[L] 39 12.1%
Lys[K] 17 5.3%
Met[M] 6 1.9%
Phe[F] 12 3.7%
Pro[P] 16 5.0%
Ser[S] 25 7.7%
Thr[T] 18 5.6%
Trp[W] 7 2.2%
Tyr[Y] 18 5.6%
Val[V] 15 4.6%
Total Length 323

Instability index
Instability index (II) 57.93
This classifies the protein as unstable

Atomic composition
Carbon 1728
Hydrogen 2669
Nitrogen 445
Oxygen 481
Sulfur 13
Total number of atoms 5336
Formula = C1728H2669N445O481S13

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 65695 M-1 cm-1
assuming NO Cys residues appear as half cystines 65320 M-1 cm-1
assuming all Cys residues are reduced 65320 M-1 cm-1
assuming all pairs of Cys residues form cystines 65695 M-1 cm-1

Aliphatic index
Aliphatic index 101.15

Coding Region Translation Calculations
Codon Bias 0.055
Codon Adaptation Index 0.139
Frequency of Optimal Codons 0.445
Hydropathicity of Protein -0.140
Aromaticity Score 0.115