SAG1/YJR004C 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] 43 6.6%
Arg[R] 8 1.2%
Asn[N] 42 6.5%
Asp[D] 29 4.5%
Cys[C] 7 1.1%
Gln[Q] 20 3.1%
Glu[E] 28 4.3%
Gly[G] 31 4.8%
His[H] 8 1.2%
Ile[I] 41 6.3%
Leu[L] 49 7.5%
Lys[K] 17 2.6%
Met[M] 8 1.2%
Phe[F] 39 6.0%
Pro[P] 19 2.9%
Ser[S] 105 16.2%
Thr[T] 89 13.7%
Trp[W] 7 1.1%
Tyr[Y] 27 4.2%
Val[V] 33 5.1%
Total Length 650

Instability index
Instability index (II) 31.20
This classifies the protein as stable

Atomic composition
Carbon 3116
Hydrogen 4758
Nitrogen 776
Oxygen 1048
Sulfur 15
Total number of atoms 9713
Formula = C3116H4758N776O1048S15

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 79105 M-1 cm-1
assuming NO Cys residues appear as half cystines 78730 M-1 cm-1
assuming all Cys residues are reduced 78730 M-1 cm-1
assuming all pairs of Cys residues form cystines 79105 M-1 cm-1

Aliphatic index
Aliphatic index 75.34

Coding Region Translation Calculations
Codon Bias 0.058
Codon Adaptation Index 0.134
Frequency of Optimal Codons 0.450
Hydropathicity of Protein -0.071
Aromaticity Score 0.112