SCM3/YDL139C 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] 9 4.0%
Arg[R] 13 5.8%
Asn[N] 14 6.3%
Asp[D] 25 11.2%
Cys[C] 1 0.4%
Gln[Q] 1 0.4%
Glu[E] 23 10.3%
Gly[G] 9 4.0%
His[H] 7 3.1%
Ile[I] 18 8.1%
Leu[L] 15 6.7%
Lys[K] 32 14.3%
Met[M] 4 1.8%
Phe[F] 1 0.4%
Pro[P] 5 2.2%
Ser[S] 18 8.1%
Thr[T] 11 4.9%
Trp[W] 2 0.9%
Tyr[Y] 6 2.7%
Val[V] 9 4.0%
Total Length 223

Instability index
Instability index (II) 44.41
This classifies the protein as unstable

Atomic composition
Carbon 1107
Hydrogen 1811
Nitrogen 325
Oxygen 370
Sulfur 5
Total number of atoms 3618
Formula = C1107H1811N325O370S5

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 19940 M-1 cm-1
assuming NO Cys residues appear as half cystines 19940 M-1 cm-1
assuming all Cys residues are reduced 19940 M-1 cm-1
assuming all pairs of Cys residues form cystines 19940 M-1 cm-1

Aliphatic index
Aliphatic index 73.45

Coding Region Translation Calculations
Codon Bias -0.020
Codon Adaptation Index 0.140
Frequency of Optimal Codons 0.419
Hydropathicity of Protein -1.187
Aromaticity Score 0.040