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Overview

Form 20-F

In the USA, the form required by the Securities and Exchange Commission for the filing of annual results by non-US companies.

ecdysterone

ecdysterone  

ororor20‐hydroxyecdysone; (22R)‐2β,3β,14,20,22,25‐hexahydroxycholest‐7‐en‐6‐one; the ecdysteroid isolated both from insects and from crustaceans. In insects, ecdysterone is formed in peripheral ...
ternary complex

ternary complex  

Any complex formed between three chemical entities, e.g. a complex formed between an enzyme and two substrate molecules.
initiation complex

initiation complex  

Any of the complexes formed at the start of ribosome‐mediated translation of mRNA into polypeptide. They contain mRNA, initiation factors, initiator fMet‐tRNAf or Met‐tRNAfMet, one or two ribosomal ...
azo

azo  

The bivalent group −N=N−. It participates in noncyclic covalent linkage in organic molecules forming azo compounds or diazo compounds.
arene oxide

arene oxide  

Any epoxide formed by the addition of an atom of oxygen across any double bond of an arene.
17α-hydroxypregnenolone

17α-hydroxypregnenolone  

3β,17‐dihydroxy‐5‐en‐20‐one; an intermediate in the synthesis of androgens, estrogens, and glucocorticoid hormones from cholesterol in the adrenal cortex. It is formed from pregnenolone by steroid ...
endoperoxide

endoperoxide  

A cyclic peroxide formed from a long‐chain polyunsaturated fatty acid, especially arachidonic acid, through the action of prostaglandin‐endoperoxide synthase.
flame spectrophotometry

flame spectrophotometry  

Any form of atomic absorption spectrophotometry or atomic emission spectrophotometry in which excitation is produced by a flame.
semenogelin

semenogelin  

One of two major gel‐forming proteins of semen. These proteins have 80% of their amino‐acid residues in common, and their genes are localized to the long arm of chromosome 20. They are hydrolysed by ...
isoflavone 7-O-glucosyltransferase

isoflavone 7-O-glucosyltransferase  

EC 2.4.1.170; an enzyme that catalyses the reaction between UDPglucose and isoflavone to form isoflavone 7‐O‐β‐d‐glucoside and UDP.
holoprotein

holoprotein  

The functional form of a protein containing a protein part (apoprotein) together with any appropriate ligand or ligands.
Nadi reagent

Nadi reagent  

A mixture of 1‐naphthol and N,N‐dimethyl‐p‐phenylene diamine that can be oxidized by cytochrome oxidase to form indophenol blue.
mature mRNA

mature mRNA  

The functional form of messenger RNA (mRNA) that results from capping, splicing, and polyadenylation of the primary transcript.
lactide

lactide  

Any intermolecular cyclic ester formed by self‐esterification from two (or more) molecules of a hydroxy carboxylic acid. Compare lactone.
lactosyl

lactosyl  

Either of the glycosyl groups formed from lactose by detaching the anomeric (α or β) hydroxyl group on C‐1.
verotoxin

verotoxin  

A pentameric pore‐forming toxin (5 × 89 amino acid residues) belonging to the shiga toxin B family (TC 1.C.54).
Leclanché cell

Leclanché cell  

A primary voltaic cell consisting of a carbon rod (the anode) and a zinc rod (the cathode) dipping into an electrolyte of a 10–20% solution of ammonium chloride. Polarization is prevented by using a ...
asparagine

asparagine  

Asn, N)The β-amide of aspartic acid (132 Da); the l-form is one of the 20 amino acids directly coded in proteins, independently of aspartic acid. Responsible for the smell of urine passed after ...
Laplace equation

Laplace equation  

The partial differential equation:∂2u/∂x2 + ∂2u/∂y2 + ∂2u/∂z2 = 0It may also be written in the form ∇2u = 0, where ∇2 is called the Laplace operator. It was formulated by the French mathematician P. ...
superoxide

superoxide  

A group of inorganic compounds that contain the O2 − ion. They are formed in significant quantities only for sodium, potassium, rubidium, and caesium. They are very powerful oxidizing agents and ...

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