Product: SPHK1 Antibody
Catalog: DF6005
Description: Rabbit polyclonal antibody to SPHK1
Application: WB IHC
Reactivity: Human, Mouse, Rat
Prediction: Pig, Bovine, Horse, Sheep, Rabbit, Dog, Chicken
Mol.Wt.: 43kDa; 43kD(Calculated).
Uniprot: Q9NYA1
RRID: AB_2837982

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 100ul $280 In stock
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Product Info

Source:
Rabbit
Application:
WB 1:500-1:2000, IHC 1:50-1:200
*The optimal dilutions should be determined by the end user.
*Tips:

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

Reactivity:
Human,Mouse,Rat
Prediction:
Pig(100%), Bovine(91%), Horse(91%), Sheep(91%), Rabbit(91%), Dog(82%), Chicken(91%)
Clonality:
Polyclonal
Specificity:
SPHK1 Antibody detects endogenous levels of total SPHK1.
RRID:
AB_2837982
Cite Format: Affinity Biosciences Cat# DF6005, RRID:AB_2837982.
Conjugate:
Unconjugated.
Purification:
The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).
Storage:
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.
Alias:

Fold/Unfold

SK 1; SK1; Sphingosine kinase 1; SPHK 1; SPHK; Sphk1; SPHK1_HUMAN; SPK; SPK 1;

Immunogens

Immunogen:
Uniprot:
Gene(ID):
Expression:
Q9NYA1 SPHK1_HUMAN:

Widely expressed with highest levels in adult liver, kidney, heart and skeletal muscle. Expressed in brain cortex (at protein level) (PubMed:29662056).

Description:
Sphingosine kinases (SPHKs) catalyze the phosphorylation of sphingosine to form sphingosine-1-phosphate (S1P), a lipid mediator with both intra- and extracellular functions. Together with other sphingolipid metobolizing enzymes, SPHKs regulate the balance of the lipid mediators, ceramide, sphingosine, and S1P (1-4). Two distinct SPHK isoforms, SPHK1 and SPHK2, have been cloned and characterized (5,6). SPHK1 and SPHK2 are highly conserved and diverselly expressed (7,8). The SPHKs are activated by G-protein-coupled receptors, receptor tyrosine kinases, immunoglobulin receptors, cytokines, and other stimuli (9-12). The molecular mechanisms by which SPHK1 and SPHK2 are specifically regulated are complex and only partially understood.
Sequence:
MDPAGGPRGVLPRPCRVLVLLNPRGGKGKALQLFRSHVQPLLAEAEISFTLMLTERRNHARELVRSEELGRWDALVVMSGDGLMHEVVNGLMERPDWETAIQKPLCSLPAGSGNALAASLNHYAGYEQVTNEDLLTNCTLLLCRRLLSPMNLLSLHTASGLRLFSVLSLAWGFIADVDLESEKYRRLGEMRFTLGTFLRLAALRTYRGRLAYLPVGRVGSKTPASPVVVQQGPVDAHLVPLEEPVPSHWTVVPDEDFVLVLALLHSHLGSEMFAAPMGRCAAGVMHLFYVRAGVSRAMLLRLFLAMEKGRHMEYECPYLVYVPVVAFRLEPKDGKGVFAVDGELMVSEAVQGQVHPNYFWMVSGCVEPPPSWKPQQMPPPEEPL

Predictions

Predictions:

Score>80(red) has high confidence and is suggested to be used for WB detection. *The prediction model is mainly based on the alignment of immunogen sequences, the results are for reference only, not as the basis of quality assurance.

Species
Results
Score
Pig
100
Horse
91
Bovine
91
Sheep
91
Chicken
91
Rabbit
91
Dog
82
Xenopus
73
Zebrafish
0
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

PTMs - Q9NYA1 As Substrate

Site PTM Type Enzyme
T193 Phosphorylation
S225 Phosphorylation P28482 (MAPK1) , P27361 (MAPK3)
S295 Phosphorylation

Research Backgrounds

Function:

Catalyzes the phosphorylation of sphingosine to form sphingosine 1-phosphate (SPP), a lipid mediator with both intra- and extracellular functions. Also acts on D-erythro-sphingosine and to a lesser extent sphinganine, but not other lipids, such as D,L-threo-dihydrosphingosine, N,N-dimethylsphingosine, diacylglycerol, ceramide, or phosphatidylinositol. In contrast to proapoptotic SPHK2, has a negative effect on intracellular ceramide levels, enhances cell growth and inhibits apoptosis. Involved in the regulation of inflammatory response and neuroinflammation. Via the product sphingosine 1-phosphate, stimulates TRAF2 E3 ubiquitin ligase activity, and promotes activation of NF-kappa-B in response to TNF signaling leading to IL17 secretion. In response to TNF and in parallel to NF-kappa-B activation, negatively regulates RANTES induction through p38 MAPK signaling pathway. Involved in endocytic membrane trafficking induced by sphingosine, recruited to dilate endosomes, also plays a role on later stages of endosomal maturation and membrane fusion independently of its kinase activity. In Purkinje cells, seems to be also involved in the regulation of autophagosome-lysosome fusion upon VEGFA.

Has serine acetyltransferase activity on PTGS2/COX2 in an acetyl-CoA dependent manner. The acetyltransferase activity increases in presence of the kinase substrate, sphingosine. During neuroinflammation, through PTGS2 acetylation, promotes neuronal secretion of specialized preresolving mediators (SPMs), especially 15-R-lipoxin A4, which results in an increase of phagocytic microglia.

Subcellular Location:

Cytoplasm. Nucleus. Cell membrane. Endosome membrane>Peripheral membrane protein. Membrane>Clathrin-coated pit. Cell junction>Synapse.
Note: Translocated from the cytoplasm to the plasma membrane in a CIB1-dependent manner (PubMed:19854831). Binds to membranes containing negatively charged lipids but not neutral lipids (PubMed:24929359). Recruited to endocytic membranes by sphingosine where promotes membrane fusion (By similarity).

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
Tissue Specificity:

Widely expressed with highest levels in adult liver, kidney, heart and skeletal muscle. Expressed in brain cortex (at protein level).

Subunit Structure:

Interacts with ACY1 (By similarity). Binds to calmodulin. Interacts with SPHKAP. Interacts with CIB1, the interaction occurs in a calcium-dependent manner. Interacts with TRAF2. Interacts with EEF1A1; the interaction enhances SPHK1 kinase activity.

Research Fields

· Environmental Information Processing > Signal transduction > Calcium signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > Sphingolipid signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > Phospholipase D signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > Apelin signaling pathway.   (View pathway)

· Human Diseases > Infectious diseases: Bacterial > Tuberculosis.

· Metabolism > Lipid metabolism > Sphingolipid metabolism.

· Metabolism > Global and overview maps > Metabolic pathways.

· Organismal Systems > Immune system > Fc gamma R-mediated phagocytosis.   (View pathway)

References

1). Study on the action mechanism of Buyang Huanwu Decoction against ischemic stroke based on S1P/S1PR1/PI3K/Akt signaling pathway. Journal of Ethnopharmacology (PubMed: 37030556) [IF=5.4]

2). Neuroprotective Effects of Danshen Chuanxiongqin Injection Against Ischemic Stroke: Metabolomic Insights by UHPLC-Q-Orbitrap HRMS Analysis. Frontiers in Molecular Biosciences (PubMed: 34026822) [IF=5.0]

Application: WB    Species: rat    Sample: cerebral cortex and hippocampus

FIGURE 8 | (A,B) Western blot analysis of Sphk1 and S1PR1 in the cerebral cortex and hippocampus of rats at 24h after MCAO.

3). Sphk1 promotes ulcerative colitis via activating JAK2/STAT3 signaling pathway. Human Cell (PubMed: 31606874) [IF=4.3]

Application: WB    Species: mouse    Sample: RAW264.7 cells

Fig. 1 |SphK1 siRNA was successfully constructed in RAW264.7 cells. a, b The efects of SphK1-SiRNA1, SphK1-SiRNA2 and SphK1-SiRNA3 in RAW264.7 cells were detected by using qRT-PCR and western blot.

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