Some forms of this enzyme will also use geranyl diphosphate and dimethylallyl diphosphate as donors; it will not use larger prenyl diphosphates as efficient donors.
Some forms of this enzyme will also use geranyl diphosphate and dimethylallyl diphosphate as donors; it will not use larger prenyl diphosphates as efficient donors.
expression level of 1a-type mRNA, encoding the active enzyme form is the same as that of 1b-type mRNA, encoding an inactive enzyme form. During testis development the total GGPS mRNSA expression level increases, accompanied by an increase in 1 n-type mRNA, the expression level pf 1a-type mRNA remains kept unchanges
the farnesyl-transferring activities of wild-type GGPS, DELTA-4, DELTA-8 and DELTA-12 carboxyterminal deletion mutants are relatively in a ratio of 1.0, 0.84, 0.26 and 0.0015. Each Km value of the four recombinants are estimated to be 0.00071, 0.002, 0.0028 and 0.055 mM for farnesyl diphosphate and to be 0.0029, 0.0051, 0.056 and above 0.1 mM for isopentenyl diphosphate, respectively. Allylic substrate specificities of these recombinants are estimated by quantitative analysis of the products, revealing that DELTA-8 and DELTA-12 mutants lack the ability to accept dimethylallyl and geranyl diphosphates compared to wild-type GGPS and DELTA-4 mutant
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
PURIFICATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
the histidine-tagged deletion mutants (from the carboxyl terminus) (DELTA-4, DELTA-8, DELTA-12 and DELTa-16) are overexpressed in Escherichia coli BL21 (DE3) and purified in a stable form by nickel affinity chromatography except for one mutant DELTA-16
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
CLONED (Commentary)
ORGANISM
UNIPROT
LITERATURE
protein expressed from 1a-type mRNA is active, protein expressed from 1b-type mRNA is inactive, expression level in HeLa cells, Cos-7 and 293 cells is about 10% relative to that in Escherichia coli. When fusion of beta-galactosidase with C-terminal regions differing between the 1a-type and the 1b-type proteins are expressed in HeLa cells, the expressed fusion proteins are both active but the latter fusion protein expresion level is considerably low compared with the former one
the histidine-tagged deletion mutants (from the carboxyl terminus) (DELTA-4, DELTA-8, DELTA-12 and DELTa-16) are overexpressed in Escherichia coli BL21 (DE3) and purified in a stable form by nickel affinity chromatography except for one mutant DELTA-16
Matsumura, Y.; Kidokoro, T.; Miyagi, Y.; Marilingaiah, N.R.; Sagami, H.
The carboxyl-terminal region of the geranylgeranyl diphosphate synthase is indispensable for the stabilization of the region involved in substrate binding and catalysis