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ProtParam

User-provided sequence:

        10         20         30 
SIVCRFVQDH FDHNISPTIG ASFMTKTVPC GNELHKFLI


References and documentation are available.

Number of amino acids: 39 Molecular weight: 4404.10 Theoretical pI: 6.77
Amino acid composition: 
Ala (A) 1 2.6% Arg (R) 1 2.6% Asn (N) 2 5.1% Asp (D) 2 5.1% Cys (C) 2 5.1% Gln (Q) 1 2.6% Glu (E) 1 2.6% Gly (G) 2 5.1% His (H) 3 7.7% Ile (I) 4 10.3% Leu (L) 2 5.1% Lys (K) 2 5.1% Met (M) 1 2.6% Phe (F) 4 10.3% Pro (P) 2 5.1% Ser (S) 3 7.7% Thr (T) 3 7.7% Trp (W) 0 0.0% Tyr (Y) 0 0.0% Val (V) 3 7.7% Pyl (O) 0 0.0% Sec (U) 0 0.0% (B) 0 0.0% (Z) 0 0.0% (X) 0 0.0%
Total number of negatively charged residues (Asp + Glu): 3 Total number of positively charged residues (Arg + Lys): 3 Atomic composition: Carbon C 198 Hydrogen H 305 Nitrogen N 53 Oxygen O 55 Sulfur S 3 Formula: C198H305N53O55S3 Total number of atoms: 614 Extinction coefficients: This protein does not contain any Trp residues. Experience shows that this could result in more than 10% error in the computed extinction coefficient. Extinction coefficients are in units of M-1 cm-1, at 280 nm measured in water. Ext. coefficient 125 Abs 0.1% (=1 g/l) 0.028, assuming all pairs of Cys residues form cystines Ext. coefficient 0 Abs 0.1% (=1 g/l) 0.000, assuming all Cys residues are reduced Estimated half-life: The N-terminal of the sequence considered is S (Ser). The estimated half-life is: 1.9 hours (mammalian reticulocytes, in vitro). >20 hours (yeast, in vivo). >10 hours (Escherichia coli, in vivo). Instability index: The instability index (II) is computed to be 45.60 This classifies the protein as unstable. Aliphatic index: 84.87 Grand average of hydropathicity (GRAVY): 0.172