Product: HSL Antibody
Catalog: AF6403
Description: Rabbit polyclonal antibody to HSL
Application: WB IHC IF/ICC
Reactivity: Human, Mouse, Rat
Prediction: Pig, Bovine, Horse, Sheep, Rabbit, Dog
Mol.Wt.: 85kDa; 117kD(Calculated).
Uniprot: Q05469
RRID: AB_2835234

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 100ul $280 In stock
 200ul $350 In stock

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Product Info

WB 1:500-1:2000, IHC 1:50-1:200, IF/ICC 1:100-1:500
*The optimal dilutions should be determined by the end user.

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.

Pig(100%), Bovine(100%), Horse(100%), Sheep(100%), Rabbit(91%), Dog(100%)
HSL Antibody detects endogenous levels of total HSL.
Cite Format: Affinity Biosciences Cat# AF6403, RRID:AB_2835234.
The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).
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.


Hormone sensitive lipase; Hormone sensitive lipase testicular isoform; Hormone-sensitive lipase; HSL; LHS; Lipase hormone sensitive; LIPE; LIPS_HUMAN;


hormone sensitive lipase is a lipolytic enzyme of the 'GDXG' family. Plays a rate limiting step in triglyceride lipolysis. In adipose tissue and heart, it primarily hydrolyzes stored triglycerides to free fatty acids, while in steroidogenic tissues, it principally converts cholesteryl esters to free cholesterol for steroid hormone production.



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.

Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

PTMs - Q05469 As Substrate

Site PTM Type Enzyme
T188 Phosphorylation
S196 Phosphorylation
S552 Phosphorylation
S565 Phosphorylation
K624 Ubiquitination
S630 Phosphorylation
S645 Phosphorylation
S649 Phosphorylation
S650 Phosphorylation
S660 Phosphorylation
Y741 Phosphorylation
T813 Phosphorylation
S825 Phosphorylation
S835 Phosphorylation
S853 Phosphorylation P17612 (PRKACA) , Q13976 (PRKG1)
S855 Phosphorylation Q14012 (CAMK1) , P17612 (PRKACA) , Q13131 (PRKAA1) , Q9UQM7 (CAMK2A)
K872 Ubiquitination
S950 Phosphorylation P17612 (PRKACA)
S951 Phosphorylation P17612 (PRKACA)
T955 Phosphorylation
T1015 Phosphorylation

Research Backgrounds


In adipose tissue and heart, it primarily hydrolyzes stored triglycerides to free fatty acids, while in steroidogenic tissues, it principally converts cholesteryl esters to free cholesterol for steroid hormone production.


Phosphorylation by AMPK may block translocation to lipid droplets.

Subcellular Location:

Cell membrane. Membrane>Caveola. Cytoplasm>Cytosol.
Note: Found in the high-density caveolae. Translocates to the cytoplasm from the caveolae upon insulin stimulation.

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

Interacts with CAVIN1 in the adipocyte cytoplasm. Interacts with PLIN5 (By similarity).


Belongs to the 'GDXG' lipolytic enzyme family.

Research Fields

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

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

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

· Organismal Systems > Endocrine system > Insulin signaling pathway.   (View pathway)

· Organismal Systems > Endocrine system > Regulation of lipolysis in adipocytes.

· Organismal Systems > Endocrine system > Aldosterone synthesis and secretion.


1). Effect of salt promote the muscle triglyceride hydrolysis during dry-salting by inducing the phosphorylation of adipose tissue triglyceride lipase (ATGL) and hormone-sensitive lipase (HSL) and lipid droplets splitting. Food Chemistry, 2020 (PubMed: 32454271) [IF=8.8]

Application: WB    Species: Pig    Sample: adipose

Fig. 3. Western blotting analysis of ATGL, HSL and their phosphorylated protein contents in adipose tissue during processing of dry-cured meat. (A) WB image of each dry-cured group. (B) ATGL relative protein level in adipose tissue. (C) p-ATGL(S406) relative protein level in adipose tissue. (D) HSL relative protein level in adipose tissue. (E) p-HSL(Ser563) relative protein level in adipose tissue. (F) p-HSL(Ser660) relative protein level in adipose tissue.

2). MIIP downregulation drives colorectal cancer progression through inducing peri-cancerous adipose tissue browning. Cell & bioscience, 2024 (PubMed: 38245780) [IF=7.5]

3). Melatonin reduces intramuscular fat deposition by promoting lipolysis and increasing mitochondrial function. JOURNAL OF LIPID RESEARCH, 2019 (PubMed: 30552289) [IF=6.5]

Application: WB    Species: pig    Sample: porcine intramuscular preadipocytes

Fig.?5.|Melatonin-activated PKA and ERK1/2 mediate lipolysis in porcine intramuscular preadipocytes. A–J: Fully differentiated adipocytes were treated with control, 1 mM of melatonin, and 1 mM of melatonin plus 10 M of 4-P-PDOT for 24 h. The expression levels of PKA (A, B), ERK1/2 (C, D), HSL (E, F), PLIN1 (G, H), and ATGL (I, J) and the phosphorylation levels of PKA (p-PKA Thr197) (A, B), ERK1/2 (p-ERK1/2 Thr202/Tyr204) (C, D), HSL (pHSL Ser660) (E, F), PLIN1 (p-PLIN1 Ser522) (G, H), and -tubulin (I, J) were evaluated by Western blotting. The results are represented as the mean ± SEM (*P < 0.05; **P < 0.01; ***P < 0.001; n = 3).

4). Probiotic Yogurt Alleviates High-Fat Diet-Induced Lipid Accumulation and Insulin Resistance in Mice via the Adiponectin Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2023 (PubMed: 36695046) [IF=6.1]

5). The Effects of Erchen Decoction on Gut Microbiota and Lipid Metabolism Disorders in Zucker Diabetic Fatty Rats. Frontiers in Pharmacology, 2021 (PubMed: 34366839) [IF=5.6]

Application: WB    Species: Rat    Sample:

FIGURE 3 ECD improved insulin signal transduction and decreased lipolysis in WAT of ZDF rats. (A) Representative image (bar: 100 µM) and (B) number and average area of adipocytes of WAT HE staining (n = 3. Z vs. L, ****p < 0.0001; EC vs. Z, ## p < 0.01, ### p < 0.001). (C) Representative bands and (D) relative protein expression of p-IRS1/IRS1, p-AKT/AKT, p-PKA/PKA, p-HSL/HSL, and ATGL. (E) Serum FFA concentration (n = 4. Z vs. L, **p < 0.01, ***p < 0.001, ****p < 0.0001; EC vs. Z, # p < 0.05, ## p < 0.01). (B), (D), and (E) were analyzed by one-way ANOVA.

6). Sex hormone-binding globulin improves lipid metabolism and reduces inflammation in subcutaneous adipose tissue of metabolic syndrome-affected horses. Frontiers in molecular biosciences, 2023 (PubMed: 38146533) [IF=5.0]

Application: WB    Species: Human    Sample: adipose tissue

FIGURE 11 Involvement of SHBG in the insulin signaling pathway. Relative expression levels of PI3K (A), AKT1 (B), GLUT4 (C), IRS1 (D), IRS2 (E), INSR (F) were analyzed by qRT-PCR. Protein levels of PI3K (G), AKT (H), GLUT4 (I), IRS1 (J), IRS2 (K), SHBG (L), IR (M) were analyzed by Western Blot. Representative immunoblots (N). Representative data are shown as mean ± SD.

7). Effects of high-intensity interval training on adipose tissue lipolysis, inflammation, and metabolomics in aged rats. PFLUGERS ARCHIV-EUROPEAN JOURNAL OF PHYSIOLOGY, 2020 (PubMed: 32006095) [IF=4.5]

Application: WB    Species: rat    Sample: fat

Fig. 4 |Metabolic pathway enrichment analysis and lipolysis metabolismrelated protein and mRNA expression. Correlation analysis of 9 metabolites (a); metabolic pathway analysis in MICT versus SED (b);mRNA levels of PPAR-γ, HSL, ATGL, and TNF-α in adipose tissues (c);correlation analysis of 6 metabolites (d); metabolic pathway analysis in HIIT versus SED (e); and contents of PPAR-γ, HSL, ATGL, TNF-α, and P450scc protein (f).

8). The Role of cAMP-PKA Pathway in Lactate-Induced Intramuscular Triglyceride Accumulation and Mitochondria Content Increase in Mice. Frontiers in Physiology, 2021 (PubMed: 34588991) [IF=4.0]

Application: WB    Species: Mice    Sample: gastrocnemius

Figure 7 The expression levels of lipid metabolism-related proteins after chronic lactate and forskolin injection. (A) Western blot analysis and relative fold protein expression of lipolysis-related proteins. (B) Western blot analysis and relative fold protein expression of lipogenesis-related proteins. CP, chronic PBS treated group; CL, chronic lactate treated group; CF, chronic forskolin treated group; CD, chronic DMSO treated group; and CLF, chronic lactate and forskolin treated group. Relative expression levels were normalized to GAPDH. Three bands are used for statistics. The data are presented as the mean±SD, and significant differences among the groups were analyzed with one-way ANOVA. * p<0.05.

9). Equisetin inhibits adiposity through AMPK-dependent regulation of brown adipocyte differentiation. Heliyon, 2024 (PubMed: 38327434) [IF=4.0]

10). Androgens exacerbate hepatic triglyceride accumulation in rats with polycystic ovary syndrome by downregulating MTTP expression. Endocrine, 2023 (PubMed: 37950821) [IF=3.7]

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