48488
Sodium (±)-homocitrate tribasic
Synonym(s):
2-Hydroxy-1,2,4-butanetricarboxylic acid trisodium salt, Trisodium homocitrate
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About This Item
Empirical Formula (Hill Notation):
C7H7Na3O7
Molecular Weight:
272.10
NACRES:
NA.25
PubChem Substance ID:
UNSPSC Code:
12352106
MDL number:
InChI
1S/C7H10O7.3Na/c8-4(9)1-2-7(14,6(12)13)3-5(10)11;;;/h14H,1-3H2,(H,8,9)(H,10,11)(H,12,13);;;/q;3*+1/p-3
SMILES string
[Na+].[Na+].[Na+].OC(CCC([O-])=O)(CC([O-])=O)C([O-])=O
InChI key
SNTBDRNHMPWDFS-UHFFFAOYSA-K
impurities
≤15.0% water
Quality Level
Application
Sodium (±)-homocitrate tribasic may be used in studies of formation and function of the iron-molybdenum cofactor (FeMo-co) which contains 7Fe, 9S, Mo, R-homocitrate. FeMo-co is essential for nitrogen fixation by nitrogenous organisms.
Biochem/physiol Actions
Component of the iron-molybdenum cofactor of nitrogenases , essential isomerization of homocitrate via homoaconitate to homoisocitrate, homocitrate accumulation seems to act as a sensor of lysine-pathway distress.
Packaging
Bottomless glass bottle. Contents are inside inserted fused cone.
signalword
Warning
hcodes
pcodes
Hazard Classifications
Eye Irrit. 2
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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T R Hoover et al.
Nature, 329(6142), 855-857 (1987-10-04)
Nitrogenase catalyses the ATP-dependent reduction of N2 to NH3, and is composed of two proteins, dinitrogenase (MoFe protein or component I) and dinitrogenase reductase (Fe protein or component II). Dinitrogenase contains a unique prosthetic group (iron-molybdenum cofactor, FeMoco) comprised of
T R Hoover et al.
Biochemistry, 28(7), 2768-2771 (1989-04-04)
When apodinitrogenase (lacking FeMo-co) was activated with FeMo-co synthesized in vitro in the presence of 3H-labeled homocitrate, label was incorporated into dinitrogenase. The physical association of the label with FeMo-co was demonstrated by reisolation and purification of the cofactor from
Franco Teves et al.
Microbiology (Reading, England), 155(Pt 12), 3881-3892 (2009-08-22)
The lysine biosynthetic pathway has to supply large amounts of alpha-aminoadipic acid for penicillin biosynthesis in Penicillium chrysogenum. In this study, we have characterized the P. chrysogenum L2 mutant, a lysine auxotroph that shows highly increased expression of several lysine
L Ma et al.
The Journal of biological chemistry, 269(27), 18007-18015 (1994-07-08)
Here we report the large scale isolation and characterization of a species, designated MoFe cluster, that exhibits an S = 3/2 EPR signal, and the comparison of this entity to isolated FeMo cofactor in N-methylformamide and to the active site
J Imperial et al.
Biochemistry, 28(19), 7796-7799 (1989-09-19)
(R)-2-Hydroxy-1,2,4-butanetricarboxylic acid [(R)-homocitrate] has been has been recently reported to be an integral constituent of the otherwise thought to be inorganic iron-molybdenum cofactor of dinitrogenase [Hoover, T.R., Imperial, J., Ludden, P.W., & Shah, V.K. (1989) Biochemistry 28,2768-2771]. Different organic acids
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