SAM37/YMR060C 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] 14 4.3%
Arg[R] 12 3.7%
Asn[N] 23 7.0%
Asp[D] 20 6.1%
Cys[C] 5 1.5%
Gln[Q] 17 5.2%
Glu[E] 21 6.4%
Gly[G] 14 4.3%
His[H] 4 1.2%
Ile[I] 17 5.2%
Leu[L] 44 13.5%
Lys[K] 29 8.9%
Met[M] 6 1.8%
Phe[F] 13 4.0%
Pro[P] 6 1.8%
Ser[S] 31 9.5%
Thr[T] 12 3.7%
Trp[W] 4 1.2%
Tyr[Y] 14 4.3%
Val[V] 21 6.4%
Total Length 327

Instability index
Instability index (II) 43.97
This classifies the protein as unstable

Atomic composition
Carbon 1676
Hydrogen 2658
Nitrogen 444
Oxygen 507
Sulfur 11
Total number of atoms 5296
Formula = C1676H2658N444O507S11

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 43110 M-1 cm-1
assuming NO Cys residues appear as half cystines 42860 M-1 cm-1
assuming all Cys residues are reduced 42860 M-1 cm-1
assuming all pairs of Cys residues form cystines 43110 M-1 cm-1

Aliphatic index
Aliphatic index 95.66

Coding Region Translation Calculations
Codon Bias -0.037
Codon Adaptation Index 0.121
Frequency of Optimal Codons 0.385
Hydropathicity of Protein -0.355
Aromaticity Score 0.095