ELISA/assay

Goat Luteinizing Hormone, LH ELISA Kit

MBS703502

96 Strip Wells

850 USD

ELISA Kit

Goat Luteinizing Hormone, LH ELISA Kit

Luteinizing Hormone (LH)

Goat Luteinizing Hormone (LH) ELISA KIT; Luteinizing Hormone (LH)

luteinizing hormone receptor; Lutropin-choriogonadotropic hormone receptor; lutropin-choriogonadotropic hormone receptor; hypergonadotropic hypogonadism; lutropin/choriogonadotropin receptor; luteinizing hormone/choriogonadotropin receptor; Luteinizing hormone receptor; LHR; LSH-R

LH

LHCGR; LHCGR; HHG; LHR; LCGR; LGR2; ULG5; LHRHR; LSH-R; LH/CGR; LH/CG-R; LCGR; LGR2; LHRHR; LH/CG-R; LHR; LSH-R

LSHR_HUMAN

Goat

699

Unopened test kits should be stored at 2 to 8 degree C upon receipt. Please refer to pdf manual for further storage instructions.

Sample Type: serum, plasma, tissue homogenates. Detection Range: 0.3 mlU/ml-60 mlU/ml. Detection Wavelength: 450 nm. Sensitivity: 0.15 mlU/ml

Sample Volume: 50-100ul

Introduction: Luteinizing hormone (LH, also known as lutropin) is a hormone produced by the anterior pituitary gland. LH is a glycoprotein. Each monomeric unit is a sugar-like protein molecule; two of these make the full, functional protein. Its structure is similar to the other glycoproteins, follicle-stimulating hormone (FSH), thyroid-stimulating hormone (TSH), and human chorionic gonadotropin (hCG). The protein dimer contains 2 polypeptide units, labeled alpha and beta subunits that are connected by two disulfide bridges: The different composition of these oligosaccharides affects bioactivity and speed of degradation. The biologic half-life of LH is 20 minutes, shorter than that of FSH (3-4 hours) or hCG (24 hours). The gene for the alpha subunit is located on chromosome 6q12.21. The LH beta subunit gene is localized in the LHB/CGB gene cluster on chromosome 19q13.32. In contrast to the alpha gene activity, beta LH subunit gene activity is restricted to the pituitary gonadotropic cells. It is regulated by the gonadotropin releasing hormone from the hypothalamus. Inhibin, activin, and sex hormones do not affect genetic activity for the beta subunit 3 production of LH. LH levels are normally low during childhood and, in women, high after menopause. During the reproductive years typical levels are between 5-20 mIU/ml. In females, at the time of menstruation, FSH initiates follicular growth, specifically affecting granulosa cells. With the rise in estrogens, LH receptors are also expressed on the maturing follicle that produces an increasing amount of estradiol. Eventually at the time of the maturation of the follicle, the estrogen rise leads via the hypothalamic interface to the "positive feed-back" effect, a release of LH over a 24-48 hour period. This 'LH surge' triggers ovulation hereby not only releasing the egg, but also initiating the conversion of the residual follicle into a corpus luteum that, in turn, produces progesterone to prepare the endometrium for a possible implantation. LH is necessary to maintain luteal function for the first two weeks. In case of a pregnancy luteal function will be further maintained by the action of hCG (a hormone very similar to LH) from the newly established pregnancy. LH supports thecal cells in the ovary that provide androgens and hormonal precursors for estradiol production. In the male, LH acts upon the Leydig cells of the testis and is responsible for the production of testosterone, an androgen that exerts both endocrine activity and intratesticular 4 activity such as spermatogenesis. The release of LH at the pituitary gland is controlled by pulses of gonadotropin-releasing hormone (GnRH) from the hypothalamus. Those pulses, in turn, are subject to the estrogen feedback from the gonads. Principle of the Assay: The microtiter plate provided in this kit has been pre-coated with a goat-anti-rabbit antibody. Standards or samples are then added to the appropriate microtiter plate wells with a Horseradish Peroxidase (HRP)-conjugated LH and anti-LH antibody and incubated. Then substrate solution A and B are added to each well. The enzyme-substrate reaction is terminated by the addition of a sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450 nm +/- 2 nm. The concentration of LH in the samples is then determined by comparing the O.D. of the samples to the standard curve.

7704943

AAB19917.2

P22888

71,615 Da

Arf6 Signaling Events Pathway 138034!!Calcium Signaling Pathway 83050!!Calcium Signaling Pathway 459!!Class A/1 (Rhodopsin-like Receptors) Pathway 106357!!G Alpha (s) Signalling Events Pathway 119549!!GPCR Downstream Signaling Pathway 119548!!GPCR Ligand Binding Pathway 161020!!GPCRs, Class A Rhodopsin-like Pathway 198886!!Hormone Ligand-binding Receptors Pathway 106369!!Neuroactive Ligand-receptor Interaction Pathway 83053

This gene encodes the receptor for both luteinizing hormone and choriogonadotropin. This receptor belongs to the G-protein coupled receptor 1 family, and its activity is mediated by G proteins which activate adenylate cyclase. Mutations in this gene result in disorders of male secondary sexual character development, including familial male precocious puberty, also known as testotoxicosis, hypogonadotropic hypogonadism, Leydig cell adenoma with precocious puberty, and male pseudohermaphtoditism with Leydig cell hypoplasia. [provided by RefSeq, Jul 2008]

Function: Receptor for lutropin-choriogonadotropic hormone. The activity of this receptor is mediated by G proteins which activate adenylate cyclase.

96 Strip Wells

850 USD