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HPA011100

Sigma-Aldrich

Anti-LETM1 antibody produced in rabbit

enhanced validation

Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution

Synonym(s):

Anti-Leucine zipper-EF-hand-containing transmembrane protein 1, mitochondrial precursor

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About This Item

UNSPSC Code:
12352203
Human Protein Atlas Number:
NACRES:
NA.43

biological source

rabbit

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

product line

Prestige Antibodies® Powered by Atlas Antibodies

form

buffered aqueous glycerol solution

species reactivity

human

enhanced validation

orthogonal RNAseq
Learn more about Antibody Enhanced Validation

technique(s)

immunohistochemistry: 1:50- 1:200

immunogen sequence

STLGLRNCLNVPFGCCTPIHPVYTSSRGDHLGCWALRPECLRIVSRAPWTSTSVGFVAVGPQCLPVRGWHSSRPVRDDSVVEKSLKSL

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... LETM1(3954)

General description

LETM1 (Leucine zipper-EF-hand containing transmembrane protein 1) is a mitochondrial inner membrane protein, and is homologous to yeast protein Mdm38p. It was originally recognized as one of the genes deleted in Wolf-Hirschhorn syndrome. It is a transmembrane protein, which has 14-3-3-like domain in its soluble region, two EF hand Ca2+-binding motifs and two coiled-coil domains. The C-terminal of this protein is hydrophilic and faces the matrix, whereas the N-terminal is hydrophobic and spans the membrane. It has a molecular weight of 83.4kDa. This gene is located on human chromosome 4p16.3.

Immunogen

LETM1 and EF-hand domain-containing protein 1, mitochondrial Precursor (Leucine zipper-EF-hand-containing transmembrane protein 1)

Application

Anti-LETM1 antibody produced in rabbit, a Prestige Antibody, is developed and validated by the Human Protein Atlas (HPA) project . Each antibody is tested by immunohistochemistry against hundreds of normal and disease tissues. These images can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. The antibodies are also tested using immunofluorescence and western blotting. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit sigma.com/prestige.

Biochem/physiol Actions

LETM1 (Leucine zipper-EF-hand containing transmembrane protein 1) is responsible for maintaining the shape and volume of mitochondria. It plays a part in mitochondrial translation machinery and mitochondrial biogenesis. It regulates the buffering of mitochondria by controlling Ca2+/H+ antiporter, and also regulates K+/H+ ion exchange. Inactivation of this gene is associated with Wolf-Hirschhorn syndrome, where it leads to aberration in mitochondrial functionality. It is responsible for growth and motor delay, as well as seizures which characterize Wolf-Hirschhorn syndrome. It is up-regulated in various human cancers, and is involved in the tumorigenesis of head and neck squamous cell carcinoma (HNSCC). It also predicts poor prognosis in HNSCC. Up-regulation of this gene leads to suppressed mitochondrial biogenesis and ATP synthesis, leading to necrotic cell death.

Features and Benefits

Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:
  • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
  • Protein array of 364 human recombinant protein fragments.

Linkage

Corresponding Antigen APREST72189

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

Legal Information

Prestige Antibodies is a registered trademark of Merck KGaA, Darmstadt, Germany

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Storage Class

10 - Combustible liquids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Ming-Feng Tsai et al.
The Journal of general physiology, 143(1), 67-73 (2013-12-18)
The leucine zipper, EF hand-containing transmembrane protein 1 (Letm1) gene encodes a mitochondrial inner membrane protein, whose depletion severely perturbs mitochondrial Ca(2+) and K(+) homeostasis. Here we expressed, purified, and reconstituted human Letm1 protein in liposomes. Using Ca(2+) fluorophore and
Liyan Chen et al.
BioMed research international, 2014, 850316-850316 (2014-04-02)
Leucine zipper-EF-hand containing transmembrane protein 1 (LETM1) is a mitochondrial inner membrane protein and plays an important role in mitochondrial ATP production and biogenesis. High expression levels of LETM1 have been correlated with numerous human malignancies. This study explored the
Perspectives on: SGP symposium on mitochondrial physiology and medicine: the pathophysiology of LETM1.
Karin Nowikovsky et al.
The Journal of general physiology, 139(6), 445-454 (2012-05-30)
Malle Kuum et al.
Journal of cell science, 125(Pt 3), 625-633 (2012-02-15)
Calcium pumping into the endoplasmic reticulum (ER) lumen is thought to be coupled to a countertransport of protons through sarcoplasmic/endoplasmic reticulum calcium ATPase (SERCA) and the members of the ClC family of chloride channels. However, pH in the ER lumen
I Stec et al.
Genomics, 76(1-3), 5-8 (2001-09-11)
We have identified and characterized a gene (60% on protein level) and a pseudogene (93% on DNA level) that show high similarity to the Wolf-Hirschhorn syndrome candidate gene-1 (WHSC1). These genes, WHSC1L1 and WHSC1L2P, map to human chromosomes 8p11.2 and

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