Biochemical Properties

Protein Name: SYFA_HALSA RecName: Full=Phenylalanine--tRNA ligase alpha subunit; AltName: Full=Phenylalanyl-tRNA synthetase alpha subunit; Short=PheRS

Strain: Haloferax volcanii

Number of amino acids: 502

Molecular weight: 54331.8

Theoretical pI: 4.14

Total number of negatively charged residues (Asp + Glu): 98

Total number of positively charged residues (Arg + Lys): 31

Instability index:The instability index (II) is computed to be 23.61

This classifies the protein as stable

Aliphatic index: 85.02

Grand average of hydropathicity (GRAVY): -0.221

Amino acid composition (%):

Ala	Arg	Asn	Asp	Cys	Gln	Glu	Gly	His	Ile	Leu	lys	Mcf	Phe	Pro	Ser	Thr	Trp	Tyr	Val
13.3	5.4	2.0	11.6	0.4	2.4	8.0	7.8	2.8	2.6	10.2	0.8	2.2	3.6	5.0	3.6	7.2	1.0	2.8	7.6

Estimated half-life:
The N-terminal of the sequence considered is M (Met).
The estimated half-life is: 30 Hours (Mammalian reticulocytes, in vitro)

Atom composition:

Carbon	Hydrogen	Nitrogen	Oxygen	Sulphur
2382	3660	642	789	13