SBA1/YKL117W 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] 17 7.9%
Arg[R] 3 1.4%
Asn[N] 7 3.2%
Asp[D] 20 9.3%
Cys[C] 1 0.5%
Gln[Q] 13 6.0%
Glu[E] 23 10.6%
Gly[G] 20 9.3%
His[H] 6 2.8%
Ile[I] 10 4.6%
Leu[L] 13 6.0%
Lys[K] 17 7.9%
Met[M] 10 4.6%
Phe[F] 5 2.3%
Pro[P] 10 4.6%
Ser[S] 11 5.1%
Thr[T] 7 3.2%
Trp[W] 3 1.4%
Tyr[Y] 9 4.2%
Val[V] 11 5.1%
Total Length 216

Instability index
Instability index (II) 51.19
This classifies the protein as unstable

Atomic composition
Carbon 1051
Hydrogen 1613
Nitrogen 277
Oxygen 350
Sulfur 11
Total number of atoms 3302
Formula = C1051H1613N277O350S11

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 29910 M-1 cm-1
assuming NO Cys residues appear as half cystines 29910 M-1 cm-1
assuming all Cys residues are reduced 29910 M-1 cm-1
assuming all pairs of Cys residues form cystines 29910 M-1 cm-1

Aliphatic index
Aliphatic index 64.17

Coding Region Translation Calculations
Codon Bias 0.267
Codon Adaptation Index 0.280
Frequency of Optimal Codons 0.571
Hydropathicity of Protein -0.763
Aromaticity Score 0.079