Toll (gene family)

The toll genes encode members of the toll-like receptor class of proteins. Mutants in the toll gene were originally identified by 1995 Nobel Laureates Christiane Nüsslein-Volhard and Eric Wieschaus and colleagues in the fruit fly Drosophila melanogaster in 1985, and cloned by the laboratory of Kathryn Anderson in 1988. Since then, thirteen mammalian toll genes have been identified.

In flies, toll was first identified as a gene important in embryogenesis in establishing the dorsal-ventral axis. In 1996, toll was found to have a role in the fly's immunity to fungal infections. Both mammalian and invertebrate toll genes are required for innate immunity.

Toll-like receptors in mammals were identified in 1997 at Yale University by Ruslan Medzhitov and Charles Janeway. Concurrently, two separate studies, led by Shizuo Akira, Bruce A. Beutler and their respective colleagues discovered that the Toll-like receptors (TLRs) act as the principal sensors of infection in mammals.

The name of the gene family derives from Christiane Nüsslein-Volhard's 1985 exclamation, "Das ist ja toll!" The exclamation, which translates as "That's amazing!" was in reference to the underdeveloped ventral portion of a fruit fly larva. The adjective "toll" is German for "amazing" or "great".

Gene

A gene is a locus (or region) of DNA that encodes a functional RNA or protein product, and is the molecular unit of heredity. The transmission of genes to an organism's offspring is the basis of the inheritance of phenotypic traits. Most biological traits are under the influence of polygenes (many different genes) as well as the gene–environment interactions. Some genetic traits are instantly visible, such as eye colour or number of limbs, and some are not, such as blood type, risk for specific diseases, or the thousands of basic biochemical processes that comprise life.

Genes can acquire mutations in their sequence, leading to different variants, known as alleles, in the population. These alleles encode slightly different versions of a protein, which cause different phenotype traits. Colloquial usage of the term "having a gene" (e.g., "good genes," "hair colour gene") typically refers to having a different allele of the gene. Genes evolve due to natural selection or survival of the fittest of the alleles.

Eugene (given name)

Eugene is a common (masculine) first name that comes from the Greek εὐγενής (eugenēs), "noble", literally "well-born", from εὖ (eu), "well" and γένος (genos), "race, stock, kin".Gene is a common shortened form. The feminine variant is Eugenia or Eugénie.

Male foreign-language variants include:

Notable people

Christianity

Military

Gene (novel)

Gene is a thriller novel by Stel Pavlou (born 1970), published in 2005 in England by Simon & Schuster. It is published in several languages with some title changes. The Italian edition has the title La Conspirazione del Minotauro (The Minotaur Conspiracy). The novel is about a fictional New York detective, James North, who in the process of hunting down a criminal, uncovers a genetics experiment to unlock past lives through genetic memory, therefore achieving a kind of immortality. In so doing North discovers his own origins, that of a soldier from the Trojan War who is reincarnated seven times through history, forced to confront his nemesis each time, all for the loss of his one true love.

Characters

Cyclades (born circa 1300 BC)

Incarnations of Cyclades

Athanatos (born circa 1500 BC)

Incarnations of Athanatos