MG MGA

The MGA is a sports car that was produced by MG from 1955 to 1962.

The MGA replaced the MG TF 1500 Midget and represented a complete styling break from MG's earlier sports cars. Announced on 26 September 1955 the car was officially launched at the Frankfurt Motor Show. A total of 101,081 units were sold through the end of production in July 1962, the vast majority of which were exported. Only 5869 cars were sold on the home market, the lowest percentage of any British car. It was replaced by the MGB.

Design

The MGA design dates back to 1951, when MG designer Syd Enever created a streamlined body for George Philips' TD Le Mans car. The problem with this car was the high seating position of the driver because of the limitations of using the TD chassis. A new chassis was designed with the side members further apart and the floor attached to the bottom rather than the top of the frame sections. A prototype was built and shown to the BMC chairman Leonard Lord. He turned down the idea of producing the new car as he had just signed a deal with Donald Healey to produce Austin-Healey cars two weeks before. Falling sales of the traditional MG models caused a change of heart, and the car, initially to be called the UA-series, was brought back. As it was so different from the older MG models it was called the MGA, the "first of a new line" to quote the contemporary advertising. There was also a new engine available, therefore the car did not have the originally intended XPAG unit but was fitted with the BMC corporate B-Series type allowing a lower bonnet line. The MGA convertible had no exterior door handles, however the coupe has door handles.

Mga

Mga (Russian: Мга) is an urban locality (an urban-type settlement) in Kirovsky District of Leningrad Oblast, Russia. Population: 10,212 (2010 Census); 9,613 (2002 Census); 9,852 (1989 Census).

The name is almost certainly derived from the identically named Mga River on which it lies (which in turn is probably of Finno-Ugric origin); the suggestion that it comes from the initials of the owner of the land in the 19th century, Maria Grigorievna Apraksin (a member of the same family for which the Apraksin Dvor in St. Petersburg is named), is extremely unlikely.

History

The settlement was founded in the beginning of the 20th century to serve the railway station. It was a part of Saint Petersburgsky Uyezd of Saint Petersburg Governorate. In 1914, Saint Peterburgsky Uyezd was renamed Petrogradsky Uyezd. On February 14, 1923 Shlisselburgsky Uyezd was merged into Petrogradsky Uyezd. In January, 1924 the uyezd was renamed Leningradsky. Saint Petersburg Governorate was twice renamed, to Petrograd Governorate and subsequently to Leningrad Governorate.

MGA

MGA can be an abbreviation of:

Mga (protein)

Mga is a DNA-binding protein that activates the expression of several important virulence genes in Streptococcus pyogenes (group A Streptococcus, GAS) in response to changing environmental conditions. The family also contains VirR like proteins which match only at the C-terminus.

Mga is a wide-reaching regulator, affecting gene expression in over 10% of the S. pyrogenes genome. The other large regulator of virulence in GAS is the CovR/S two-component system, which affects the expression of approximately 15% of the genome. The two systems are linked through another protein, RivR, and a small non-coding RNA RivX.

References

This article incorporates text from the public domain Pfam and InterPro IPR007737