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Documentos Principais

MAB1594

Sigma-Aldrich

Anti-Frataxin Antibody, exon 4, clone 1G2

ascites fluid, clone 1G2, Chemicon®

Sinônimo(s):

Friedreich ataxia, Friedreich ataxia protein

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About This Item

Código UNSPSC:
12352203
eCl@ss:
32160702
NACRES:
NA.41
clone:
1G2, monoclonal
application:
ELISA
ICC
IF
WB
reatividade de espécies:
human, rat, mouse
técnica(s):
ELISA: suitable
immunocytochemistry: suitable
immunofluorescence: suitable
western blot: suitable
citations:
4

fonte biológica

mouse

Nível de qualidade

forma do anticorpo

ascites fluid

tipo de produto de anticorpo

primary antibodies

clone

1G2, monoclonal

reatividade de espécies

human, rat, mouse

fabricante/nome comercial

Chemicon®

técnica(s)

ELISA: suitable
immunocytochemistry: suitable
immunofluorescence: suitable
western blot: suitable

Isotipo

IgG1κ

nº de adesão NCBI

nº de adesão UniProt

Condições de expedição

dry ice

modificação pós-traducional do alvo

unmodified

Informações sobre genes

human ... FXN(2395)
mouse ... Fxn(14297)
rat ... Fxn(499335)

Descrição geral

Frataxin is a monomeric mitochondrial protein that is believed to be involved in iron homeostasis through an unknown mechanism. Expression of frataxin is highest in tissue rich with mitochondria including liver, heart, and skeletal muscle (Campuzano, 1996; Koutnikova, 1997). Frataxin is expressed as a 30 kDa precursor (transient; 210 amino acids) that is processed within in the mitochondria in two steps catalysed by the mitochondrial processing peptidase (MPP) to yield the mature protein (Koutnikova, 1998). The first step involves cleavage of the first 41 N-terminal amino acids by MPP yielding a transient intermediate of approximately 20 kDa (aa 42-210). Further cleavage of the N-terminus of this 20 kDa intermediate by MPP results in the mature 18 kDa frataxin protein (aa 56-210). Defects in the gene encoding frataxin are implicated as the cause of Friedreich′s ataxia, an autosomal recessive, progressive degenerative disease characterized by neurodegeneration and cardiomyopathy. In the majority of cases of Friedreich′s ataxia, there is an expansion of a trinucleotide repeat in the first intron of the gene encoding frataxin resulting in a marked decrease in frataxin expression, perhaps due to the formation of some unusual yet stable DNA structure that interferes with transcription (Campuzano, 1997; Bidichandani, 1998). This reduction in frataxin expression results in the accumulation of unchelated iron in the mitochondria, inhibition of mitochondrial iron-sulfer proteins, and iron mediated oxidative stress (Foury, 1997; for review see Puccio, 2000).

Especificidade

Expected to cross-react with human.
Human Frataxin. MAB1594 recognizes only isoforms of frataxin containing exon 4. On Western blots of normal human muscle, heart, cerebellum, and spinal cord extracts, MAB1594 recognizes a band migrating at approximately 18 kDa corresponding to processed frataxin (Campuzano, 1997). Slight cross reactivity with myosin may be observed by Western blot. Immunofluorescent labeling of HeLa cells with MAB1594 demonstrates that frataxin is predominantly localized in the mitochondria (Campuzano, 1997).

Imunogênio

Epitope: exon 4
Full length human Frataxin fused to TrpE.

Aplicação

Detect Frataxin using this Anti-Frataxin Antibody, exon 4, clone 1G2 validated for use in ELISA, IC, IF & WB.
Immunofluorescence:
1:100-1:1,000. Fixation of cells in ice cold acetone or 4% paraformaldehyde is recommended. Due to the subcellular localization of frataxin in the mitochondria, cells should be permeabilized in the presence of detergent prior to incubation with primary antibody.

ELISA:
A previous lot of this antibody was used on ELISA.

Western blot (natural and recombinant protein):
1:5,000; mitochondrial preparations are recommended for consist signals (see Santos, 2001).

Optimal working dilutions must be determined by the end user.

Qualidade

Routinely evaluated by Western Blot on PC12 lysates.

Western Blot Analysis:
1:1000 dilution of this lot detected Frataxin on 10 μg of PC12 lysates.

Descrição-alvo

~ 18 kDa

forma física

Mouse monoclonal ascites IgG1κ in buffer containing liquid with no preservatives.

Armazenamento e estabilidade

Stable for 1 years at -20°C in undiluted aliquots from date of receipt.
Handling Recommendations: Upon first thaw, and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance

Nota de análise

Control
Liver, heart or skeletal muscle.

Outras notas

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Informações legais

CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany

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Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable


Certificados de análise (COA)

Busque Certificados de análise (COA) digitando o Número do Lote do produto. Os números de lote e remessa podem ser encontrados no rótulo de um produto após a palavra “Lot” ou “Batch”.

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Visite a Biblioteca de Documentos

Erythroid differentiation and protoporphyrin IX down-regulate frataxin expression in Friend cells: characterization of frataxin expression compared to molecules involved in iron metabolism and hemoglobinization
Becker, Erika M, et al
Blood, 99, 3813-3822 (2002)
Hannes Steinkellner et al.
Analytica chimica acta, 659(1-2), 129-132 (2010-01-28)
Friedreich's ataxia (FRDA) is an autosomal recessive neurodegenerative disease affecting 1 in 50,000 people and is caused by a GAA-trinucleotide expansion in the frataxin gene located on chromosome locus 9q13 which results in a markedly reduced expression of frataxin, a
H Koutnikova et al.
Human molecular genetics, 7(9), 1485-1489 (1998-08-13)
Frataxin is a mitochondrial protein deficient in Friedreich ataxia (FRDA) and which is associated with abnormal intramitochondrial iron handling. We identified the mitochondrial processing peptidase beta (MPPbeta) as a frataxin protein partner using the yeast two-hybrid assay. In in vitro
Infectious delivery and expression of a 135 kb human FRDA genomic DNA locus complements Friedreich's ataxia deficiency in human cells.
Gomez-Sebastian, Silvia, et al.
Molecular Therapy, 15, 248-254 (2007)
M M Santos et al.
Human molecular genetics, 10(18), 1935-1944 (2001-09-14)
Deficiency of the mitochondrial matrix protein frataxin causes Friedreich ataxia. Frataxin function is believed to be related to mitochondrial iron metabolism and free radical production. In Friedreich ataxia, loss of dorsal root ganglia neurons occurs early in life, suggesting a

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