摘要:
Disclosed are (1) a DNA sequence containing a segment coding for endothelin-2 or human endothelin-3, (2) a precursor protein and a mature peptide of endothelin-2 or human endothelin-3, (3) a transformant carrying a DNA sequence containing a DNA segment coding for endothelin-2 or human endothelin-3 and (4) a method for preparing mature endothelin-2 or endothelin-3 which comprises culturing the transformant described in (3), producing and accumulating a protein in a culture medium, and collecting the same.Cells transfected or transformed with the DNA allow large amounts of endothelin-2 or endothelin-3 to be produced, which causes the advantageous production of endothelin-2 or endothelin-3.Endothelin-2 and endothelin-3 can be utilized as hypotension therapeutic agents or local vasoconstrictors to animals including humans.
摘要:
Endothelin-2 and a big type of endothelin-2 proteins are described. The proteins contain the amino acid sequence: Cys Ser Cys Ser Ser Trp Leu Asp Lys Glu Cys Val Tyr Phe Cys His Leu Asp Ile Ile Trp.
摘要:
A cloned DNA molecule is disclosed. The DNA molecule encodes a human endothelin-3 protein having the amino acid sequence: Glu-Gly-Ala-Pro-Glu-His-His-Arg-Ser-Arg-Arg-Cys-Thr-Cys-Phe-Thr-Tyr-Lys-Asp-Lys-Glu-Cys-Val-Tyr-Tyr-Cys-His-Leu-Asp-Ile-Ile-Trp-Ile-Asn-Thr-Pro-Glu or any portion of said amino acid sequence containing Cys-Thr-Cys-Phe-Thr-Tyr-Lys-Asp-Lys-Glu-Cys-Val-Tyr-Tyr-Cys-His-Leu-Asp-Ile-Ile-Trp. Also disclosed is a method of producing mature endothelin-3 protein. In the method, the host cell is cultured, allowing mature endothelin-3 to accumulate in the culture medium, and the mature endothelin-3 protein is separated from the culture medium.
摘要:
Disclosed are (1) a DNA sequence containing a DNA segment coding for endothelin-2 or human endothelin-3, (2) a precursor protein and a mature peptide of endothelin-2 or human endothelin-3, (3) a transformant carrying a DNA sequence containing a DNA segment coding for endothelin-2 or human endothelin-3 and (4) a method for preparing mature endothelin-2 or endothelin-3 which comprises culturing the transformant described in (3), producing and accumulating a protein in a culture medium, and collecting the same. Cells transfected or transformed with the DNA allow large amounts of endothelin-2 or endothelin-3 to be produced, which causes the advantageous production of endothelin-2 or endothelin-3. Endothelin-2 and endothelin-3 can be utilized as hypotension therapeutic agents or local vasoconstrictors to animals including humans.
摘要:
Disclosed is a vasoconstrictor peptide called Endothelin having a molecular weight of 2,500.+-.300. Endothelin contains 21 amino acid residues, wherein four cysteines form two sets of S--S bond.In order to obtain the vasoconstrictor factors of the present invention, it is preferable to culture the endothelial cells collected from the vascular inner walls in a serum-free medium.The vasoconstrictor peptides of the present invention can be utilized as hypotension therapeutic agents or local vasoconstrictors to animals including humans.
摘要:
A drilling control apparatus for automatically controlling the drilling operation of a rock drill includes a control unit for storing known criteria drilling patterns for various rock properties. A specific drilling pattern is selected based upon a collaring procedure for operation of the rock drill. A detector continually monitors variables such as rotational pressure, feed pressure and flushing pressure during the drilling process to determine a change in condition of the rock for determination of automatic selection of another more appropriate drilling pattern.
摘要:
Methods and compositions for agonizing a type-2 orexin receptor (OX2R) in a cell determined to be in need thereof, including the general method of (a) administering to a subject a cyclic guanidinyl OX2R agonist and (b) detecting a resultant enhanced wakefulness or increased resistance to diet-induced accumulation of body fat, or abbreviated recovery from general anesthesia or jet lag.
摘要:
Polypeptides of HFGAN72 receptor ligands and polynucleotides encoding the polypeptides are provided. Methods of using these polypeptides to diagnose diseases relating to the under- or over-expression of HFGAN72 receptor ligands are also provided. In addition, methods of identifying agonists or antagonists of the interaction of HFGAN72 receptor ligands with the HFGAN72 receptor are provided. Methods of treatment by administering the identified agonists or antagonists to patients in need thereof are further disclosed.
摘要:
An abrasive tool includes an electroformed layer having superabrasive grains electroplated on an outer surface of the electroformed layer, and a plurality of dimples arranged on the outer surface of the electroformed layer using a mold with projections made of gel adhesive. The concentration of the abrasive gains is regulated by changing the number of the dimples (i.e., changing a dimple-area-rate). The gel adhesive preferably has a viscosity of 500,000 cP or smaller. The dimple-area-rate is preferably from 7 to 70%.
摘要:
Disclosed is a nucleic acid segment encoding endothelin converting enzyme-2 (ECE-2), that produces mature ET-1 from big ET-1 both in vitro and in transfected cells. Also disclosed is a polypeptide composition comprising partially purified ECE-2 and methods of using ECE-2 to screen candidate substances as inhibitors of ECE-2. Methods of producing recombinant ECE-2 are also disclosed.