SRT1/YMR101C 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] 13 3.8%
Arg[R] 19 5.5%
Asn[N] 17 5.0%
Asp[D] 15 4.4%
Cys[C] 5 1.5%
Gln[Q] 9 2.6%
Glu[E] 20 5.8%
Gly[G] 12 3.5%
His[H] 9 2.6%
Ile[I] 24 7.0%
Leu[L] 33 9.6%
Lys[K] 32 9.3%
Met[M] 14 4.1%
Phe[F] 25 7.3%
Pro[P] 14 4.1%
Ser[S] 28 8.2%
Thr[T] 16 4.7%
Trp[W] 5 1.5%
Tyr[Y] 12 3.5%
Val[V] 21 6.1%
Total Length 343

Instability index
Instability index (II) 48.74
This classifies the protein as unstable

Atomic composition
Carbon 1834
Hydrogen 2867
Nitrogen 481
Oxygen 496
Sulfur 19
Total number of atoms 5697
Formula = C1834H2867N481O496S19

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 45630 M-1 cm-1
assuming NO Cys residues appear as half cystines 45380 M-1 cm-1
assuming all Cys residues are reduced 45380 M-1 cm-1
assuming all pairs of Cys residues form cystines 45630 M-1 cm-1

Aliphatic index
Aliphatic index 86.36

Coding Region Translation Calculations
Codon Bias -0.049
Codon Adaptation Index 0.126
Frequency of Optimal Codons 0.386
Hydropathicity of Protein -0.231
Aromaticity Score 0.122