SPC98/YNL126W 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] 29 3.4%
Arg[R] 37 4.4%
Asn[N] 66 7.8%
Asp[D] 36 4.3%
Cys[C] 4 0.5%
Gln[Q] 31 3.7%
Glu[E] 57 6.7%
Gly[G] 30 3.5%
His[H] 18 2.1%
Ile[I] 68 8.0%
Leu[L] 107 12.6%
Lys[K] 55 6.5%
Met[M] 18 2.1%
Phe[F] 50 5.9%
Pro[P] 29 3.4%
Ser[S] 78 9.2%
Thr[T] 44 5.2%
Trp[W] 5 0.6%
Tyr[Y] 45 5.3%
Val[V] 39 4.6%
Total Length 846

Instability index
Instability index (II) 40.03
This classifies the protein as unstable

Atomic composition
Carbon 4467
Hydrogen 6954
Nitrogen 1150
Oxygen 1297
Sulfur 22
Total number of atoms 13890
Formula = C4467H6954N1150O1297S22

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 94800 M-1 cm-1
assuming NO Cys residues appear as half cystines 94550 M-1 cm-1
assuming all Cys residues are reduced 94550 M-1 cm-1
assuming all pairs of Cys residues form cystines 94800 M-1 cm-1

Aliphatic index
Aliphatic index 97.47

Coding Region Translation Calculations
Codon Bias -0.024
Codon Adaptation Index 0.115
Frequency of Optimal Codons 0.399
Hydropathicity of Protein -0.243
Aromaticity Score 0.118