SNF7/YLR025W 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 7.1%
Arg[R] 8 3.3%
Asn[N] 19 7.9%
Asp[D] 14 5.8%
Cys[C] 0 0.0%
Gln[Q] 12 5.0%
Glu[E] 35 14.6%
Gly[G] 9 3.8%
His[H] 3 1.2%
Ile[I] 15 6.2%
Leu[L] 22 9.2%
Lys[K] 22 9.2%
Met[M] 10 4.2%
Phe[F] 3 1.2%
Pro[P] 5 2.1%
Ser[S] 21 8.8%
Thr[T] 12 5.0%
Trp[W] 2 0.8%
Tyr[Y] 0 0.0%
Val[V] 11 4.6%
Total Length 240

Instability index
Instability index (II) 50.28
This classifies the protein as unstable

Atomic composition
Carbon 1146
Hydrogen 1887
Nitrogen 325
Oxygen 403
Sulfur 10
Total number of atoms 3771
Formula = C1146H1887N325O403S10

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 11000 M-1 cm-1

Aliphatic index
Aliphatic index 80.50

Coding Region Translation Calculations
Codon Bias -0.002
Codon Adaptation Index 0.114
Frequency of Optimal Codons 0.417
Hydropathicity of Protein -0.811
Aromaticity Score 0.021