Definition of ASSOCIATIVE. 1. : of or relating to association especially of ideas or images. 2. : dependent on or acquired by association or learning. 3. â asÂ·soÂ·ciaÂ·tiveÂ·ly adverb. â asÂ·soÂ·ciaÂ·tivÂ·iÂ·ty \-ËsÅ-shÄ-É-Ëti-vÉ-tÄ, -sÄ-, -shÉ-Ëti-\ noun. See associative defined for kids.
The Rossmann fold is a protein structural motif found in proteins that bind nucleotides, such as enzyme cofactors FAD, NAD, and NADP.The structure is composed of up to seven mostly parallel beta strands.The first two strands are connected by an Î±- helix. The structures of segments between additional strands vary greatly and may include structures such as short helical segments and coils.n 1989, Israel Hanukoglu from the Weizmann Institute of Science discovered that the consensus sequence for NADP binding site in some enzymes that utilize NADP differs from the NAD binding motif. This discovery was used to re-engineer coenzyme specificities of enzymes.
A wave-like geologic structure that forms when rocks deform by bending instead of breaking under compressional stress. Anticlines are arch-shaped folds in which rock layers are upwardly convex. The oldest rock layers form the core of the fold, and outward from the core progressively younger rocks occur. A syncline is the opposite type of fold, having downwardly convex layers with young rocks in the core. Folds typically occur in anticline-syncline pairs. The hinge is the point of maximum curvature in a fold.