Human FGF basic (154aa) Protein, premium grade, Unconjugated, E. coli
Biozol Catalog Number:
ABS-BFF-H5115-50UG
Supplier Catalog Number:
BFF-H5115-50ug
Alternative Catalog Number:
ABS-BFF-H5115-50UG
Manufacturer:
AcroBiosystems
Host:
E. coli
Category:
Proteine/Peptide
Species Reactivity:
Human
Conjugation:
Unconjugated
FGF basic (also known as FGF2 and HBGF2) is an 1834 kDa, heparinbinding member of the FGF superfamily of molecules (13). Superfamily members are characterized by the presence of a centrally placed beta trefoil structure. FGF acidic (FGF1) and FGF basic (FGF2) were the first two identified FGFs, and the designations acidic and basic refer to their relative isoelectric points. Human FGF basic is 288 amino acids (aa) in length. There are multiple start sites, four of which utilize atypical CUG codons, and one that initiates at an AUG start site (4 6). The four CUG start sites generate high molecular weight (HMW) FGF basic. There is a 34 kDa, 288 aa form, a 24 kDa, 210 aa form, a 22.5 kDa, 201 aa form, and a 22 kDa, 196 aa form. All are retained intracellularly, undergo extensive methylation, and possess one or more nuclear localization signals (NLS) (79). The AUG initiating form is 18 kDa and 155 aa in length. There is no signal sequence (ss). It is, however, secreted directly through the plasma membrane via a mechanism that appears to be dependent upon tertiary structure (10). In place of a ss, there is purportedly a 9 aa Nterminal prosegment that precedes a 146 aa mature segment (11). Early isolations of 18 kDa bovine FGF basic yielded 146 aa molecules, an effect attributed to the presence of acid proteases (12). The molecule contains a heparinbinding site (aa residues 128144), and undergoes phosphorylation at Ser117 (13). There is also an illdefined Cterminal NLS that may be more ''functional (or 3dimensional) than structural (7). Human 146 aa FGF basic is 97% aa identical to mouse FGF basic (14). - Proteine/Peptide
