SAP185/YJL098W 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] 40 3.8%
Arg[R] 40 3.8%
Asn[N] 79 7.5%
Asp[D] 107 10.1%
Cys[C] 10 0.9%
Gln[Q] 31 2.9%
Glu[E] 127 12.0%
Gly[G] 46 4.3%
His[H] 19 1.8%
Ile[I] 69 6.5%
Leu[L] 95 9.0%
Lys[K] 62 5.9%
Met[M] 28 2.6%
Phe[F] 42 4.0%
Pro[P] 38 3.6%
Ser[S] 86 8.1%
Thr[T] 51 4.8%
Trp[W] 7 0.7%
Tyr[Y] 36 3.4%
Val[V] 45 4.3%
Total Length 1058

Instability index
Instability index (II) 47.49
This classifies the protein as unstable

Atomic composition
Carbon 5282
Hydrogen 8179
Nitrogen 1395
Oxygen 1810
Sulfur 38
Total number of atoms 16704
Formula = C5282H8179N1395O1810S38

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 92765 M-1 cm-1
assuming NO Cys residues appear as half cystines 92140 M-1 cm-1
assuming all Cys residues are reduced 92140 M-1 cm-1
assuming all pairs of Cys residues form cystines 92765 M-1 cm-1

Aliphatic index
Aliphatic index 76.57

Coding Region Translation Calculations
Codon Bias 0.018
Codon Adaptation Index 0.146
Frequency of Optimal Codons 0.433
Hydropathicity of Protein -0.752
Aromaticity Score 0.080