PPM1/YDR435C 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] 18 5.5%
Arg[R] 19 5.8%
Asn[N] 16 4.9%
Asp[D] 17 5.2%
Cys[C] 6 1.8%
Gln[Q] 13 4.0%
Glu[E] 22 6.7%
Gly[G] 13 4.0%
His[H] 5 1.5%
Ile[I] 24 7.3%
Leu[L] 41 12.5%
Lys[K] 20 6.1%
Met[M] 13 4.0%
Phe[F] 10 3.0%
Pro[P] 11 3.4%
Ser[S] 30 9.1%
Thr[T] 15 4.6%
Trp[W] 5 1.5%
Tyr[Y] 14 4.3%
Val[V] 16 4.9%
Total Length 328

Instability index
Instability index (II) 58.00
This classifies the protein as unstable

Atomic composition
Carbon 1680
Hydrogen 2677
Nitrogen 449
Oxygen 495
Sulfur 19
Total number of atoms 5320
Formula = C1680H2677N449O495S19

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 48735 M-1 cm-1
assuming NO Cys residues appear as half cystines 48360 M-1 cm-1
assuming all Cys residues are reduced 48360 M-1 cm-1
assuming all pairs of Cys residues form cystines 48735 M-1 cm-1

Aliphatic index
Aliphatic index 96.92

Coding Region Translation Calculations
Codon Bias 0.088
Codon Adaptation Index 0.122
Frequency of Optimal Codons 0.452
Hydropathicity of Protein -0.202
Aromaticity Score 0.088