Rabbit FH Polyclonal Antibody | anti-FH antibody
FH Polyclonal Antibody
IHC: 1:50 - 1:200
Buffer: PBS with 0.02% sodium azide, 50% glycerol, pH7.3.
Western Blot (WB)
(Western blot analysis of extracts of various cell lines, using FH antibody at 1:1000 dilution.Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) (MBS128200) at 1:10000 dilution.Lysates/proteins: 25ug per lane.Blocking buffer: 3% nonfat dry milk in TBST.Detection: ECL Basic Kit.Exposure time: 1s.)
NCBI and Uniprot Product Information
NCBI Description
The protein encoded by this gene is an enzymatic component of the tricarboxylic acid (TCA) cycle, or Krebs cycle, and catalyzes the formation of L-malate from fumarate. It exists in both a cytosolic form and an N-terminal extended form, differing only in the translation start site used. The N-terminal extended form is targeted to the mitochondrion, where the removal of the extension generates the same form as in the cytoplasm. It is similar to some thermostable class II fumarases and functions as a homotetramer. Mutations in this gene can cause fumarase deficiency and lead to progressive encephalopathy. [provided by RefSeq, Jul 2008]
Uniprot Description
FH: a metabolic enzyme that participates in the tricarboxylic acid cycle that catalyzes the conversion of (S)-malate into fumarate + H2O. There are two substrate binding sites: the catalytic A site, and the non-catalytic B site that may play a role in the transfer of substrate or product between the active site and the solvent. Alternatively, the B site may bind allosteric effectors. Fumarate accumulates in the cell when FH is inactivated. Fumarate inhibits the dioxygenases that hydroxylate the transcription factor HIF and leads to its degradation by VHL. Since HIF turns on oncogenic pathways, FH has apparent tumor suppressor activity. Defects in FH are the cause of hereditary leiomyomatosis and renal cell cancer (HLRCC), a highly metastatic form of RCC. Defects in FH are the cause of fumarase deficiency (FD) also known as fumaricaciduria. FD is characterized by progressive encephalopathy, developmental delay, hypotonia, cerebral atrophy and lactic and pyruvic acidemia. Cells derived from a patient with HLRCC exhibit compromised oxidative phosphorylation, dependence on anaerobic glycolysis, rapid glycolytic flux, and overexpression of lactate dehydrogenase A (LDHA) and GLUT1. Two human isoforms are produced by alternative initiation. The longer isoform is mitochondrial, while the shorter form, missing residues 1-43, is cytoplasmic.
Protein type: Lyase; Tumor suppressor; Mitochondrial; EC 4.2.1.2; Carbohydrate Metabolism - citrate (TCA) cycle
Chromosomal Location of Human Ortholog: 1q42.1
Cellular Component: tricarboxylic acid cycle enzyme complex; mitochondrion; mitochondrial matrix; cytoplasm
Molecular Function: fumarate hydratase activity
Biological Process: cellular metabolic process; fumarate metabolic process; homeostasis of number of cells within a tissue; tricarboxylic acid cycle
Disease: Fumarase Deficiency