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The cyclic structure of proline's side chain locks the angle φ at approximately −65°. [19] Proline acts as a structural disruptor in the middle of regular secondary structure elements such as alpha helices and beta sheets; however, proline is commonly found as the first residue of an alpha helix and also in the edge strands of beta sheets.
This is a list of cars with non-standard door designs, sorted by door type.These car models use passenger door designs other than the standard design, which is hinged at the front edge of the door, and swings away from the car horizontally and towards the front of the car.
A typical lowboy load configuration. A lowboy (low-loader in British English, low-bed in western Canada and South Africa or float in Australia and eastern Canada) is a semi-trailer with two drops in deck height: one right after the gooseneck and one right before the wheels. This allows the deck to be extremely low compared with other trailers.
Quarter glass is also sometimes called a valence window. [2] This window may be set on hinges and is then also known as a vent window, wing window, wing vent window, or a fly window. Most often found on older vehicles on the front doors, it is a small roughly triangular glass in front of and separate from the main window that rotates inward ...
A tractor unit pulling a semi-trailer A truck pulling a semitrailer using a trailer dolly. A semi-trailer is a trailer without a front axle.The combination of a semi-trailer and a tractor truck is called a semi-trailer truck (also known simply as a "semi-trailer", "tractor trailer", or "semi" in the United States).
Hydroxyproline and proline play key roles for collagen stability. [4] They permit the sharp twisting of the collagen helix. [5] In the canonical collagen Xaa-Yaa-Gly triad (where Xaa and Yaa are any amino acid), a proline occupying the Yaa position is hydroxylated to give a Xaa-Hyp-Gly sequence.
Rectilinear III "Highboy" Rectilinear III Lowboy Rectilinear III (and others) grille emblem Rectilinear III "Lowboy" (and others) grille emblem. Rectilinear Research Corporation was a manufacturer of loudspeakers. The company was formed around 1966 and its principal was Morris I. Wiener (alt. sp. "Weiner") of Plandome Manor, New York. [1]
Typical pillar configurations of a sedan/saloon (three box), station wagon/estate (two box), and hatchback (two box) from the same model range. The configuration of a car body is typically determined by the layout of the engine, passenger and luggage compartments, which can be shared or separately articulated.