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AB110043

Fumarase Specific Activity Assay Kit

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(3 Publications)

ab110043 uses a high affinity capture antibody to selectively isolate fumarase (FH), removing all other enzymes. This allows for a highly specific fumarase assay with colorimetric (450 nm) readout by plate reader. The assay also includes a step to quantify the fumarase capture with colorimetric (600 nm) readout.

View Alternative Names

Fumarase, HsFH, FH

2 Images
Sandwich ELISA - Fumarase Specific Activity Assay Kit (AB110043)
  • sELISA

Supplier Data

Sandwich ELISA - Fumarase Specific Activity Assay Kit (AB110043)

Example data obtained using the Fumarase Specific Activity Assay Kit (ab110043).

Sandwich ELISA - Fumarase Specific Activity Assay Kit (AB110043)
  • sELISA

Supplier Data

Sandwich ELISA - Fumarase Specific Activity Assay Kit (AB110043)

Principle of a Sandwich ELISA.

Key facts

Detection method

Colorimetric

Reacts with

Human, Rat, Cow

Assay type

Enzyme activity

Assay Platform

Microplate reader

Reactivity data

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Product details

ab110043 (MS780) is a novel assay that uses a high affinity monoclonal capture antibody to selectively isolate fumarase (FH), which removes all other enzymes of the Krebs cycle and NAD+/NADH utilizing enzymes. After isolation and subsequent measurement of the enzyme's functional activity, the quantity of isolated FH is measured in the same well by adding a second monoclonal detector antibody, which is quantified using a colorimetric label (HRP). Both reactions take place in time-dependent manners proportional to the amount of enzyme captured in each well. By combining activity and quantity measurements, the enzyme's relative specific activity can be determined. Specific activity is useful for measuring up or down regulation of activity by site-specific modification or damage, and in response to specific inhibitors.

ab110043 (MS780) is a novel assay that uses a high affinity monoclonal capture antibody to selectively isolate fumarase (FH), which removes all other enzymes of the Krebs cycle and NAD+/NADH utilizing enzymes. After isolation and subsequent measurement of the enzyme's functional activity, the quantity of isolated FH is measured in the same well by adding a second monoclonal detector antibody, which is quantified using a colorimetric label (HRP). Both reactions take place in time-dependent manners proportional to the amount of enzyme captured in each well. By combining activity and quantity measurements, the enzyme's relative specific activity can be determined. Specific activity is useful for measuring up or down regulation of activity by site-specific modification or damage, and in response to specific inhibitors.

What's included?

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Properties and storage information

Shipped at conditions
Dry Ice
Appropriate short-term storage conditions
Multi
Appropriate long-term storage conditions
Multi
Storage information
Please refer to protocols

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Fumarase sometimes referred to as fumarate hydratase is an enzyme involved in the Krebs cycle. Its mechanical function involves the reversible hydration/dehydration of fumarate to malate. The enzyme has a molecular mass around 50 kilodaltons. Fumarase expression occurs in the mitochondria of eukaryotic cells and it also appears in the cytosol contributing to the compartmentalization of its enzymatic activity.
Biological function summary

Fumarase plays a critical role in cellular respiration by facilitating the conversion of fumarate to malate within the tricarboxylic acid (TCA) cycle. This enzyme does not operate as part of a larger protein complex but its activity is essential for maintaining the flow of carbon through the TCA cycle which is integral to energy production. Its activity is upregulated when cells require increased ATP generation.

Pathways

Fumarase participates prominently in the TCA cycle a vital pathway for aerobic respiration where it interconverts fumarate and malate. The enzyme supports cellular energy production and this is closely linked with other TCA cycle enzymes like isocitrate dehydrogenase and alpha-ketoglutarate dehydrogenase which further facilitate efficient energy conversion.

Fumarase deficiency leads to severe neurological impairment often manifesting as encephalopathy. This deficiency occurs due to mutations in the FH gene which encodes for fumarase. Additionally a reduction in fumarase activity associates with fumarase-related hereditary leiomyomatosis and renal cell cancer (HLRCC) linking fumarase with altered metabolic states in tumorigenesis. Dysregulation within this context often involves interactions with metabolically similar enzymes complicating the metabolic landscape and contributing to oncogenic processes.

Product protocols

Target data

Catalyzes the reversible stereospecific interconversion of fumarate to L-malate (PubMed : 30761759). Experiments in other species have demonstrated that specific isoforms of this protein act in defined pathways and favor one direction over the other (Probable).. Isoform Mitochondrial. Catalyzes the hydration of fumarate to L-malate in the tricarboxylic acid (TCA) cycle to facilitate a transition step in the production of energy in the form of NADH.. Isoform Cytoplasmic. Catalyzes the dehydration of L-malate to fumarate (By similarity). Fumarate metabolism in the cytosol plays a role during urea cycle and arginine metabolism; fumarate being a by-product of the urea cycle and amino-acid catabolism (By similarity). Also plays a role in DNA repair by promoting non-homologous end-joining (NHEJ) (PubMed : 20231875, PubMed : 26237645). In response to DNA damage and phosphorylation by PRKDC, translocates to the nucleus and accumulates at DNA double-strand breaks (DSBs) : acts by catalyzing formation of fumarate, an inhibitor of KDM2B histone demethylase activity, resulting in enhanced dimethylation of histone H3 'Lys-36' (H3K36me2) (PubMed : 26237645).
See full target information FH

Publications (3)

Recent publications for all applications. Explore the full list and refine your search

Redox biology 55:102406 PubMed35964341

2022

Increased NOS coupling by the metabolite tetrahydrobiopterin (BH4) reduces preeclampsia/IUGR consequences.

Applications

Unspecified application

Species

Unspecified reactive species

Laurent Chatre,Aurélien Ducat,Frank T Spradley,Ana C Palei,Christiane Chéreau,Betty Couderc,Kamryn C Thomas,Anna R Wilson,Lorena M Amaral,Irène Gaillard,Céline Méhats,Isabelle Lagoutte,Sébastien Jacques,Francisco Miralles,Frédéric Batteux,Joey P Granger,Miria Ricchetti,Daniel Vaiman

PLoS pathogens 15:e1007791 PubMed31545842

2019

A fungal ABC transporter FgAtm1 regulates iron homeostasis via the transcription factor cascade FgAreA-HapX.

Applications

Unspecified application

Species

Unspecified reactive species

Zhihui Wang,Tianling Ma,Yunyan Huang,Jing Wang,Yun Chen,H Corby Kistler,Zhonghua Ma,Yanni Yin

Anticancer research 35:6639-53 PubMed26637880

2015

Fumarate Hydratase-deficient Cell Line NCCFH1 as a New In Vitro Model of Hereditary Papillary Renal Cell Carcinoma Type 2.

Applications

Unspecified application

Species

Unspecified reactive species

Victoria Perrier-Trudova,Bernice Wong Huimin,Sarinya Kongpetch,Dachuan Huang,Pauline Ong,Audrey Le Formal,Song Ling Poon,Ee Yan Siew,Swe Swe Myint,Sophie Gad,Betty Gardie,Sophie Couvé,Yu Miin Foong,Yukti Choudhury,Jonathan Poh,Choon Kiat Ong,Chee Keong Toh,Aikseng Ooi,Stéphane Richard,Min-Han Tan,Bin Tean Teh
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