Epidermal Growth Factor (EGF): Definition & Importance

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Luteinizing hormone (LH) is a hormone produced in the anterior pituitary gland involved in regulation of the reproductive function. Specifically, gonadotropic cells in the anterior pituitary gland produce LH or Luteinizing hormone LH SLH production is regulated by gonadotropin-releasing hormone (GnRH) from the hypothalamus. An acute surge in LH levels triggers ovulation and the development of the corpus luteum in females. In males, LH is also called interstitial cell-stimulating hormone (ICSH). They act on the Leydig cells to produce testosterone and work in synergy with the follicle-stimulating hormone (FSH).

Luteinizing hormone (LH) is an essential hormone produced in the anterior pituitary gland involved in regulation of the reproductive function. Specifically, gonadotropic cells in the anterior pituitary produce LH  hormone. LH production is regulated by gonadotropin-releasing hormone (GnRH) from the hypothalamus. This product gives four dilutions of the human luteinizing hormone. The human luteinizing hormone has a molecular weight of approximately 26,000 daltons and contains 2 non-covalently associated subunits, an alpha and beta subunit. The alpha subunit in humans contains 92 amino acids whereas the beta subunit varies in its amino acid composition, but generally is about 120 amino acids long. Luteinizing Hormone, for many years regarded as only playing a role in reproduction, has gained importance in recent years for its effects on bone growth and remodeling. LH (Luteinizing Hormone) is a hormone produced in the anterior pituitary gland involved in regulation of the reproductive function. LH stimulates production of testosterone and progesterone, which aids ovulation and fertilization. The Alpha and Beta subunits are coded for by distinct genes. The hormone is a heterodimeric glycoprotein that comprises of one alpha and one beta subunits that are non-covalently associated. The alpha subunit in humans contains 92 amino acids whereas the beta subunit varies in its composition, but generally is of 120 amino acids long.

What is EGf Formula? EGf Formula – EGF, a founding member of the EGF-family of proteins is a 6 kilodalton protein belonging to the EGF-protein family. EGF binds to the epidermal growth factor receptor (EGFR) and stimulates cell growth and differentiation . In humans, this protein is made of 53 amino acid residues and its tertiary structure is held together by 3 intramolecular disulfide bonds. Researchers first identified EGF in human urine and mice submaxillary glands as a secreted protein. Since then, EGF has been found in tears, saliva, milk, plasma, and tissues, including the parotid gland and submandibular gland-urogastrone or its trade name Heberprot-P. 

Epidermal growth factor (EGF) (also called ‘urogastrone’) is a protein that stimulates cell growth and proliferation. EGF was discovered in the laboratory of Edward Scolnick while he was working with Stanley Cohen at Vanderbilt University and later in Cohen’s new lab at Stanford. Both Cohen and Scolnick went on to win Nobel Prizes for their work. By combining the amino acid sequences identified by oligopeptide analysis and the peptide sequences obtained through enzymatic cleavage of 68,000 molecular weight glycoprotein, N-terminal sequence of mature EGF was determined.