Cellesignalering Flashcards

1
Q

Hvad er en ligand?

A

Kemisk stof, som interagerer med en receptor

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2
Q

Nævn tre targets, som ikke er proteiner

A

DNA
RNA
Lipider

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3
Q

Nævn fire typer af receptorer

A

Ligand-regulerede ionkanaler
G-proteinkoblede receptorer
Enzym-koblede receptorer
Nukleare receptorer

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4
Q

Definition på ionkanaler

A

Transmembrane proteiner, der tillader selektiv passage af bestemt ion. Etablerer og styrer elektrokemisk gradient.

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5
Q

Antal helixer i ligandregulerede receptorer

A

4-5

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6
Q

Antal helixer i g-protein koblede receptorer

A

7

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7
Q

Placering af N og C terminale ender i ligandregulerede ionkanaler

A

Begge ekstracellulære

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8
Q

Placering af nukleare receptorer

A

I cellens cytoplasma (eller nucleus) indtil aktivering, hvorefter den søger mod nucleus

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9
Q

Hvad bruges P-kreatinin til?

A

Vurdering af nyre-/væsketal

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