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Key Specifications Table
| Species Reactivity | Key Applications | Host | Format | Antibody Type |
|---|---|---|---|---|
| H | WB | Rb | Serum | Polyclonal Antibody |
| Description | |
|---|---|
| Catalogue Number | ABS1641 |
| Description | Anti-SPTLC2 Antibody |
| Alternate Names |
|
| Background Information | Serine palmitoyltransferase 2 (EC 2.3.1.50; UniProt O15270; also known as hLCB2a, LCB 2, LCB2a, Long chain base biosynthesis protein 2, Long chain base biosynthesis protein 2a, Serine-palmitoyl-CoA transferase 2, SPT 2) is encoded by the SPTLC2 (also known as HSAN1C, KIAA0526, NSAN1C, LCB2) gene (Gene ID 9517) in human. Serine palmitoyltransferase (SPT) is a pyridoxal 5-phosphate (PLP)-dependent enzyme that catalyses the first step of de novo sphingolipids (SLs) biosynthesis, namely the condensation of L-serine with palmitoyl coenzyme-A to generate 3-ketodehydrosphinganine (KDS) that forms the sphingoid base backbone of all SLs. The core human SPT homoenzyme is a membrane-bound heterodimer composed of an hLCB1 (SPTLC1) subunit together with either an hLCB2a (SPTLC2) or an hLCB2b (SPTLC3) subunit. The hLCB1/hLCB2 heterodimer contains a single active site composed of residues from both subunits. hLCB2a and hLCB2b share 68% sequence identity, with hLCB2b being the isotype that is predominantly expressed in the placenta and prefers shorter chain acyl-CoAs (C12 and C14) to generate short-chain SLs. In addition, two human small subunits (ssSPTa and ssSPTb) have been identified and found to maximize the catalytic activity and to confer the acyl-CoA substrate chain-length specificity of the hLCB1/hLCB2 core enzyme. Mutations in hLCB1 and hLCB2a are found in patients with hereditary sensory and autonomic neuropathy type I (HSAN1), an inherited disorder that affects sensory and autonomic neurons due to neurotoxic deoxysphingolipids formation as a result of substrate promiscuity of the mutated SPT enzyme. |
| Product Information | |
|---|---|
| Format | Serum |
| Presentation | Rabbit polyclonal antibody serum with 0.05% sodium azide. |
| Quality Level | MQ100 |
| Applications | |
|---|---|
| Application | Anti-SPTLC2 Antibody is an antibody against SPTLC2 for use in Western Blotting. |
| Key Applications |
|
| Application Notes | Western Blotting Analysis: Representative lots detected SPTLC2 in human placenta tissue homogenates and in various lysates from human cell lines, including embryonic kidney HEK293, hepatocellular carcinoma HepG2, choriocarcinoma JAr and JEG-3 (Hornemann, T., et al. (2007). Biochem. J. 405(1):157-164; Hornemann, T., et al. (2006). J. Biol. Chem. 281(49):37275-37281). |
| Biological Information | |
|---|---|
| Immunogen | A mixture of two linear peptides corresponding to sequences from the N-terminal region and the C-terminal end of human SPTLC2. |
| Epitope | N-terminal region and C-terminal end. |
| Concentration | Please refer to lot specific datasheet. |
| Host | Rabbit |
| Specificity | Target-specificity of this antiserum was verified by negative blotting using pre-immune serum and by target band blocking using immunogen peptides (Hornemann, T., et al. (2006). J. Biol. Chem. 281(49):37275-37281). |
| Species Reactivity |
|
| Species Reactivity Note | Human. Predicted to react with Mouse, Rat, Chicken, Bovine, Xenopus based on 100% sequence homology. |
| Antibody Type | Polyclonal Antibody |
| Entrez Gene Number |
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| Gene Symbol |
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| Purification Method | Unpurified |
| UniProt Number |
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| Molecular Weight | ~63 kDa observed. 62.92 kDa calculated. Target band size is also reported with a smaller apparent molecular weight of ~58kDa. Uncharacterized band(s) may appear in some lysates. |
| Product Usage Statements | |
|---|---|
| Quality Assurance | Evaluated by Western Blotting in HepG2 cell lysate. Western Blotting Analysis: A 1:500 dilution of this antibody detected SPTLC2 in 10 µg of HepG2 cell lysate. |
| Usage Statement |
|
| Storage and Shipping Information | |
|---|---|
| Storage Conditions | Stable for 1 year at -20°C from date of receipt. Handling Recommendations: Upon receipt 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. |
| Packaging Information | |
|---|---|
| Material Size | 100 µL |