Biochemical Properties

Protein Name: SYH_HALLT RecName: Full=Histidine--tRNA ligase; AltName: Full=Histidyl-tRNA synthetase; Short=HisRS

Strain: Halorubrum lacusprofundi ATCC 49239

Number of amino acids: 442

Molecular weight: 47946.6

Theoretical pI: 4.14

Total number of negatively charged residues (Asp + Glu): 91

Total number of positively charged residues (Arg + Lys): 38

Instability index:The instability index (II) is computed to be 37.87

This classifies the protein as stable

Aliphatic index: 78.35

Grand average of hydropathicity (GRAVY): -0.314

Amino acid composition (%):

Ala	Arg	Asn	Asp	Cys	Gln	Glu	Gly	His	Ile	Leu	lys	Mcf	Phe	Pro	Ser	Thr	Trp	Tyr	Val
11.3	6.3	1.4	10.4	0.7	2.5	10.2	9.5	0.5	2.3	7.7	2.3	1.4	4.3	3.8	5.2	6.1	0.7	3.8	9.7

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
2099	3234	560	709	9