SAM35/YHR083W 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] 17 5.2%
Arg[R] 12 3.6%
Asn[N] 15 4.6%
Asp[D] 14 4.3%
Cys[C] 8 2.4%
Gln[Q] 21 6.4%
Glu[E] 21 6.4%
Gly[G] 12 3.6%
His[H] 8 2.4%
Ile[I] 18 5.5%
Leu[L] 41 12.5%
Lys[K] 22 6.7%
Met[M] 8 2.4%
Phe[F] 14 4.3%
Pro[P] 11 3.3%
Ser[S] 26 7.9%
Thr[T] 22 6.7%
Trp[W] 2 0.6%
Tyr[Y] 12 3.6%
Val[V] 25 7.6%
Total Length 329

Instability index
Instability index (II) 37.73
This classifies the protein as stable

Atomic composition
Carbon 1673
Hydrogen 2663
Nitrogen 441
Oxygen 496
Sulfur 16
Total number of atoms 5289
Formula = C1673H2663N441O496S16

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 29380 M-1 cm-1
assuming NO Cys residues appear as half cystines 28880 M-1 cm-1
assuming all Cys residues are reduced 28880 M-1 cm-1
assuming all pairs of Cys residues form cystines 29380 M-1 cm-1

Aliphatic index
Aliphatic index 97.14

Coding Region Translation Calculations
Codon Bias 0.151
Codon Adaptation Index 0.131
Frequency of Optimal Codons 0.498
Hydropathicity of Protein -0.131
Aromaticity Score 0.085