SEC4/YFL005W 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] 11 5.1%
Arg[R] 7 3.3%
Asn[N] 16 7.4%
Asp[D] 14 6.5%
Cys[C] 3 1.4%
Gln[Q] 6 2.8%
Glu[E] 12 5.6%
Gly[G] 20 9.3%
His[H] 1 0.5%
Ile[I] 19 8.8%
Leu[L] 16 7.4%
Lys[K] 19 8.8%
Met[M] 4 1.9%
Phe[F] 10 4.7%
Pro[P] 2 0.9%
Ser[S] 19 8.8%
Thr[T] 15 7.0%
Trp[W] 2 0.9%
Tyr[Y] 4 1.9%
Val[V] 15 7.0%
Total Length 215

Instability index
Instability index (II) 23.59
This classifies the protein as stable

Atomic composition
Carbon 1034
Hydrogen 1665
Nitrogen 281
Oxygen 328
Sulfur 7
Total number of atoms 3315
Formula = C1034H1665N281O328S7

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 17085 M-1 cm-1
assuming NO Cys residues appear as half cystines 16960 M-1 cm-1
assuming all Cys residues are reduced 16960 M-1 cm-1
assuming all pairs of Cys residues form cystines 17085 M-1 cm-1

Aliphatic index
Aliphatic index 88.84

Coding Region Translation Calculations
Codon Bias 0.194
Codon Adaptation Index 0.196
Frequency of Optimal Codons 0.536
Hydropathicity of Protein -0.226
Aromaticity Score 0.074