Name (print): 35.Greek key, lelly roll and Alpha-beta are examples of which of t
ID: 705484 • Letter: N
Question
Name (print): 35.Greek key, lelly roll and Alpha-beta are examples of which of the following conserved protein structures? a. opsins b. globins e. K channels c. beta barrels d. Ca channels 36.Evolution with retention of function occurs when: a. orthologs acquire a single mutation outside of critical domains b. paralogs acquire a single mutation outside of critical domains c. the core of the protein is minimally changed d. none of the above e. all of the above 37 Select the false statement. Neurofibrillary tangles: a. are highly prevalent in Alzhimer's Disease and are found in other (rarer) diseases, generally classified as a tauopathy b. caused by hyperphosphorylation of tau, which normally associates with microfilaments c. caused by hyperphosphorylation of beta-amyloid which normally associates with microfilaments d.Once hyperphosphorylated tau assembles a "standard" amyloid fold and aggregates within neurons e. destabilization of microfilaments leads to their collapse, ultimately leading to its deathExplanation / Answer
(1)-All the structures are example of beta barrels.
explanation: All the given names are nothing but the stuctures of proteins.popularly there are three types in which the protein fold arrange themselves.
(a)- primary
(b) secondary
(c) beta pleated sheets
Greek key: the structure consists of four antiparallel strands arranged adjacent to each other resembling that of a hair pin. three strands are arranged closer to each other by loops, while the fourth one is attached to the first one with a longer loop
jelly roll is also known with another name i.e. swiss rol fold. it is comprises of 8 beta strands( common stucture in viral proteins). the two four stranded sheets are arranged in antiparallel manner
alpha/beta: they consists of both helix structured alpha and beta sheets arranged alternatively with the beta sheets parallel to each other.
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