SAM50/YNL026W 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] 16 3.3%
Arg[R] 17 3.5%
Asn[N] 28 5.8%
Asp[D] 26 5.4%
Cys[C] 6 1.2%
Gln[Q] 20 4.1%
Glu[E] 18 3.7%
Gly[G] 35 7.2%
His[H] 19 3.9%
Ile[I] 25 5.2%
Leu[L] 59 12.2%
Lys[K] 32 6.6%
Met[M] 10 2.1%
Phe[F] 29 6.0%
Pro[P] 21 4.3%
Ser[S] 47 9.7%
Thr[T] 35 7.2%
Trp[W] 7 1.4%
Tyr[Y] 12 2.5%
Val[V] 22 4.5%
Total Length 484

Instability index
Instability index (II) 36.16
This classifies the protein as stable

Atomic composition
Carbon 2446
Hydrogen 3800
Nitrogen 660
Oxygen 715
Sulfur 16
Total number of atoms 7637
Formula = C2446H3800N660O715S16

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 56755 M-1 cm-1
assuming NO Cys residues appear as half cystines 56380 M-1 cm-1
assuming all Cys residues are reduced 56380 M-1 cm-1
assuming all pairs of Cys residues form cystines 56755 M-1 cm-1

Aliphatic index
Aliphatic index 84.17

Coding Region Translation Calculations
Codon Bias 0.005
Codon Adaptation Index 0.124
Frequency of Optimal Codons 0.403
Hydropathicity of Protein -0.295
Aromaticity Score 0.099