PCK1/YKR097W 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 7.8%
Arg[R] 21 3.8%
Asn[N] 27 4.9%
Asp[D] 27 4.9%
Cys[C] 10 1.8%
Gln[Q] 15 2.7%
Glu[E] 36 6.6%
Gly[G] 36 6.6%
His[H] 16 2.9%
Ile[I] 36 6.6%
Leu[L] 40 7.3%
Lys[K] 32 5.8%
Met[M] 14 2.6%
Phe[F] 21 3.8%
Pro[P] 31 5.6%
Ser[S] 42 7.7%
Thr[T] 39 7.1%
Trp[W] 8 1.5%
Tyr[Y] 22 4.0%
Val[V] 33 6.0%
Total Length 549

Instability index
Instability index (II) 43.29
This classifies the protein as unstable

Atomic composition
Carbon 2719
Hydrogen 4218
Nitrogen 726
Oxygen 821
Sulfur 24
Total number of atoms 8508
Formula = C2719H4218N726O821S24

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 77405 M-1 cm-1
assuming NO Cys residues appear as half cystines 76780 M-1 cm-1
assuming all Cys residues are reduced 76780 M-1 cm-1
assuming all pairs of Cys residues form cystines 77405 M-1 cm-1

Aliphatic index
Aliphatic index 79.25

Coding Region Translation Calculations
Codon Bias 0.379
Codon Adaptation Index 0.311
Frequency of Optimal Codons 0.632
Hydropathicity of Protein -0.288
Aromaticity Score 0.093