APC9/YLR102C 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] 8 3.0%
Arg[R] 19 7.2%
Asn[N] 23 8.7%
Asp[D] 22 8.3%
Cys[C] 6 2.3%
Gln[Q] 5 1.9%
Glu[E] 25 9.4%
Gly[G] 11 4.2%
His[H] 10 3.8%
Ile[I] 12 4.5%
Leu[L] 27 10.2%
Lys[K] 16 6.0%
Met[M] 6 2.3%
Phe[F] 10 3.8%
Pro[P] 12 4.5%
Ser[S] 21 7.9%
Thr[T] 10 3.8%
Trp[W] 2 0.8%
Tyr[Y] 9 3.4%
Val[V] 11 4.2%
Total Length 265

Instability index
Instability index (II) 55.24
This classifies the protein as unstable

Atomic composition
Carbon 1339
Hydrogen 2090
Nitrogen 388
Oxygen 428
Sulfur 12
Total number of atoms 4257
Formula = C1339H2090N388O428S12

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 24785 M-1 cm-1
assuming NO Cys residues appear as half cystines 24410 M-1 cm-1
assuming all Cys residues are reduced 24410 M-1 cm-1
assuming all pairs of Cys residues form cystines 24785 M-1 cm-1

Aliphatic index
Aliphatic index 72.45

Coding Region Translation Calculations
Codon Bias -0.124
Codon Adaptation Index 0.083
Frequency of Optimal Codons 0.331
Hydropathicity of Protein -0.874
Aromaticity Score 0.079