GROWTH HORMONE, HUMAN suppliers

GROWTH HORMONE, HUMAN

CAS:: 9002-72-6

MF:

MW:: 0

Use：: Growth hormone (GH), also called human growth hormone (HGH or hGH) or somatotropic hormone, somatotropin is a single polypeptide chain of 191 amino acids[1](qv) having two disulfide bonds, one between Cys-53 and Cys-165, forming a large loop in the molecule, and the other between Cys-182 and Cys-189, forming a small loop near the C-terminus. The structure of GH is shown in Figure 1; molecular mass is 22,125; the empirical formula is C990H1529N262O300S7. Purified GH is a white amorphous powder in its lyophilized form. It is readily soluble (concentrations10 mg/mL) in dilute aqueous buffers at pH values above 7.2. The isoelectric point is 5.2 and the generally accepted value for the extinction coefficient at 280 nm is 17, 700 (M?cm)?1, although other values have been reported. The equilibrium denaturation of GH has been studied. A two-state mechanism is indicated with a Gibbs free energy of unfolding of 60.7 ± 4 kJ/mol (14.5 ± 1 kcal/mol). In solution, GH exists predominantly as a monomer, with a small fraction as a dimer and higher molecular weight oligomers. Under certain conditions, GH can be induced to form larger amounts of dimers, trimers, and higher oligomers although the conditions leading to self-association are not well understood. GH is a globular protein having approximately 55% α-helical character, a value determined independently in studies using circular dichroism and Raman spectroscopy. A protein of a high degree of homology and structural similarity is porcine growth hormone, the crystal structure of which has been solved. This structure shows four antiparallel helices connected by strands of polypeptide having little structure. A crystal structure of GH complexed with the extracellular domain of its receptor has been reported. In this complex, the structure of GH is readily obvious and shows the four-helical bundle connected in an up–up–down–down fashion rather than the more common up–down–up–down. This work has convincingly shown that GH possesses two binding sites for its receptor and that the hormone functions by dimerizing its receptor on the cell membrane[2]. The product should be stored at –20 °C. The lyophilized product remains active for one year at –20 °C. Upon reconstitution, the cytokine can be stored at 2–8 °C for short term only or at –20 °C to –80 °C in aliquots for long term. Avoid repeated freeze-thaw cycles[3].

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You can find GROWTH HORMONE, HUMAN suppliers, manufacturers, and distributors from countries such as China, United States and the United Kingdom here. Browse to the tetrahydrofuran product information displayed by the supplier, as well as the supplier's contact and capability information.

Wuhan Cell Pharmaceutical Co., Ltd

HGH
Remarks: Purity: 99.99%HPLC.USP42——Powder、Oil、Pills、Capsules、Tablets，Customized packaging|Package: ≥1kit;$65.00/kit|≥10kit;$60.00/kit|≥1000kit;$40.00/kit
TEL: +86-13129979210
CHINA Trader

CONTIDE BIOTECH CO.,LTD

HGH
Remarks: Purity: 99% | CustNote: g
TEL: 7026-8763
CHINA Trader

Fuzhou Lista Biotechnology Co.,Ltd

HGH
Remarks: Purity: 99.99% | Package: 1box;65USD|30box;60USD|50box;50USD
CHINA Trader

￥65.00/1box

￥60.00/30box

￥50.00/50box

Shanghai Longyu Biotechnology Co., Ltd.

HGH
Remarks: Purity: 0.99|Package: 1box;70.00;USD|10box;60.00;USD|100box;50.00;USD
CHINA Trader

￥70.00/1box

￥60.00/10box

￥50.00/100box

Changzhou Xuanming Pharmaceutical Technology Co., Ltd.

HGH
Remarks: Purity: 99% | Package: 1Kit;55USD
CHINA Trader

￥55.00/1Kit

Jinan Million Pharmaceutical Co., Ltd

HGH
Remarks: Purity: 99% | Package: 1kg;2USD|1kg;2USD|1kg;1USD
TEL: 531-0531-68659554
CHINA Manufacturer

￥2.00/1kg

￥1.00/1kg

Henan Tianfu Chemical Co.,Ltd.

Somatotropin from human pituitary
Remarks: Purity: 99% | Package: 25KG;5KG;1KG
TEL: 0371-+86-0371-55170693
CHINA Trader

.GZ HONESTCHEM CO.,LTD

GH
Remarks: Purity: 99.9% | Package: 10g/ml;1USD
TEL: +86-15013270415
CHINA Trader

￥1.00/10g/ml

Hebei Yanxi Chemical Co., Ltd.

GROWTH HORMONE, HUMAN
Remarks: Purity: 0.99 | Package: 5KG;1KG | CustNote: Factory direct sales
CHINA Manufacturer

Shaanxi Dideu Medichem Co. Ltd

GROWTH HORMONE, HUMAN USP/EP/BP
Remarks: Purity: 99.9% | Package: 25kgs/Drum;200kgs/Drum | CustNote: FDA GMP CEP Approved Manufacturer
TEL: +86-029-89586680
CHINA Trader