SIT1/YEL065W 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] 47 7.5%
Arg[R] 22 3.5%
Asn[N] 20 3.2%
Asp[D] 19 3.0%
Cys[C] 11 1.8%
Gln[Q] 11 1.8%
Glu[E] 28 4.5%
Gly[G] 42 6.7%
His[H] 14 2.2%
Ile[I] 69 11.0%
Leu[L] 64 10.2%
Lys[K] 29 4.6%
Met[M] 15 2.4%
Phe[F] 45 7.2%
Pro[P] 24 3.8%
Ser[S] 47 7.5%
Thr[T] 38 6.1%
Trp[W] 15 2.4%
Tyr[Y] 26 4.1%
Val[V] 42 6.7%
Total Length 628

Instability index
Instability index (II) 36.67
This classifies the protein as stable

Atomic composition
Carbon 3299
Hydrogen 5061
Nitrogen 797
Oxygen 865
Sulfur 26
Total number of atoms 10048
Formula = C3299H5061N797O865S26

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 121865 M-1 cm-1
assuming NO Cys residues appear as half cystines 121240 M-1 cm-1
assuming all Cys residues are reduced 121240 M-1 cm-1
assuming all pairs of Cys residues form cystines 121865 M-1 cm-1

Aliphatic index
Aliphatic index 109.47

Coding Region Translation Calculations
Codon Bias 0.231
Codon Adaptation Index 0.191
Frequency of Optimal Codons 0.547
Hydropathicity of Protein 0.478
Aromaticity Score 0.137