POP1/YNL221C 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] 48 5.5%
Arg[R] 65 7.4%
Asn[N] 52 5.9%
Asp[D] 44 5.0%
Cys[C] 17 1.9%
Gln[Q] 39 4.5%
Glu[E] 39 4.5%
Gly[G] 42 4.8%
His[H] 23 2.6%
Ile[I] 56 6.4%
Leu[L] 82 9.4%
Lys[K] 76 8.7%
Met[M] 20 2.3%
Phe[F] 33 3.8%
Pro[P] 38 4.3%
Ser[S] 77 8.8%
Thr[T] 47 5.4%
Trp[W] 13 1.5%
Tyr[Y] 27 3.1%
Val[V] 37 4.2%
Total Length 875

Instability index
Instability index (II) 42.83
This classifies the protein as unstable

Atomic composition
Carbon 4442
Hydrogen 7104
Nitrogen 1296
Oxygen 1284
Sulfur 37
Total number of atoms 14163
Formula = C4442H7104N1296O1284S37

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 112730 M-1 cm-1
assuming NO Cys residues appear as half cystines 111730 M-1 cm-1
assuming all Cys residues are reduced 111730 M-1 cm-1
assuming all pairs of Cys residues form cystines 112730 M-1 cm-1

Aliphatic index
Aliphatic index 79.26

Coding Region Translation Calculations
Codon Bias 0.033
Codon Adaptation Index 0.124
Frequency of Optimal Codons 0.419
Hydropathicity of Protein -0.585
Aromaticity Score 0.083