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Storage
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Store the unopened product at 2 - 8° C. Protect from light. Do not use past
expiration date.
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Gene ID
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6462 |
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Gene Symbol
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SHBG |
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Synonym
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ABP; ABPTestosterone-estrogen-binding globulin; androgen binding protein; MGC126834; MGC138391; SBP; sex hormone-binding globulin; Sex steroid-binding protein; SHBG; TEBG; Testis-specific androgen-binding protein; testosterone-binding beta-globulin; Testosterone-estradiol-binding globulin |
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Species
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Human |
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Specificity
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This assay has high sensitivity and excellent specificity for detection of human SHBG. No significant cross-reactivity or interference between human SHBG and analogues was observed. |
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Kit Components
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Assay plate (12 x 8 coated Microwells), Standard (Freeze dried), Biotin-antibody (60 x concentrate), HRP-avidin (20 x concentrate), Biotin-antibody Diluent, HRP-avidin Diluent, Sample Diluent, Wash Buffer (20 x concentrate), TMB Substrate, Stop Solution, Adhesive Strip (For 96 wells), Instruction manual |
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Notes
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Please contact our Technical Services with any questions regarding species reactivity |
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Standard Curve Range
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0.020 nmol/ml - 1.280 nmol/ml |
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Sensitivity
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0.016 nmol/ml |
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Inter Assay
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CV%<10% |
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Intra Assay
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CV%<8% |
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Assay Type
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Sandwich ELISA |
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Suitable Sample Type
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serum, plasma, tissue homogenates, cell lysate, cell culture medium. |
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Sample Volume
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50-100ul |
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Applications
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ELISA |
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Typical Data
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ELISA: Human SHBG ELISA Kit (Colorimetric) - These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed. |
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Background
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Sex hormone-binding globulin (SHBG) or sex steroid-binding globulin (SSBG) is a glycoprotein that binds to the two sex hormones: androgen and estrogen. Other steroid hormones such as progesterone, cortisol, and other corticosteroids are bound by transcortin. SHBG is found in all vertebrates apart from birds. Testosterone and estradiol circulate in the bloodstream, loosely bound mostly to serum albumin (~54%) and corticosteroid-binding globulin (CBG) (AKA transcortin), and to a lesser extent bound tightly to SHBG (~44%). Only a very small fraction of about 1-2% is unbound, or "free," and thus biologically active and able to enter a cell and activate its receptor. SHBG inhibits the function of these hormones. Thus, bioavailability of sex hormones is influenced by the level of SHBG. The relative binding affinity of various sex steroids for SHBG is dihydrotestosterone (DHT) > testosterone > androstenediol > estradiol > estrone. DHT binds to SHBG with about 5 times the affinity of testosterone and about 20 times the affinity of estradiol. Dehydroepiandrosterone (DHEA) is weakly bound to SHBG, but dehydroepiandrosterone sulfate is not bound to SHBG. Androstenedione is not bound to SHBG either, and is instead bound solely to albumin. Estrone sulfate and estriol are also poorly bound by SHBG. Less than 1% of progesterone is bound to SHBG. |
