Metabolic Regulation (Part 2) Flashcards

1
Q

What is quorum sensing?

A

Responding to density

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2
Q

What processes are regulated by quorum sensing?

A

Toxin production in pathogens, light emission, biofilms, antibiotic production, and sporulation

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3
Q

Autoinducer

A

Signal molecule, acyl homoserine lactone (AHL)

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4
Q

What are heat shock proteins used for?

A

They prevent protein aggregation and are used as chaperone proteins

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5
Q

RpoH

A

Alternative sigma factor

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6
Q

DnaK

A

Inactivates RpoH under normal temperatures

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7
Q

RpoH controls what?

A

Expression of cytoplasmic proteins under heat shock

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8
Q

RpoE controls what?

A

Expression of periplasmic and membrane proteins under heat shock

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9
Q

DnaK

A

Inactivates RpoH under normal temperatures

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10
Q

What is the CRISPR antiviral defense system?

A

Clustered Regularly Interspaced Short Palindromic Repeats-memory bank of viral sequences

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11
Q

What are riboswitches?

A

Catalytically active RNA molecules

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12
Q

What are some examples of riboswitches?

A

Thiamine, riboflavin, cobalamin, some amino acids, purines, and peptidoglycan precursor

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