S2 highlights Flashcards

1
Q

CaM K

A

calmodulin kinase
calmodulin + ca binds to something (calmodulin kinase) and becomes a kinase
removal of regulatory subunit
autophospohyrylates to activate then Ca leaves and calmodulin leaves but is still partially active if still phosphorylated

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2
Q

MAPK

A
mitogen activated protein kinase
lots of steps 
last step is MAD kinase kinase 
\+ P to tyr
non receptor Tyr KS
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3
Q

PKA

A

cAMP activates it

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4
Q

PKB

A

PDK1 activates
also known as Akt
moves from cytosol to membrane for activation then back to cytosol
gets to membrane by finding PI345P3

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5
Q

PKC

A

PDK1 adds P to first thr
then auphosp of 2 sites catalytically competent but inactive
Ca and DAG and PLs bind to and opens it and now active
move to PM???

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6
Q

PLC

A

phospholipase C
turns phosphoinositol into DAG and IP3
by cleaving inositol head group

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7
Q

PP1

A

protein phosphatase 1

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8
Q

PP2A

A

Protein phosphatase 2A
hetero trimer
catalytic, regulatory, scaffolding
ser/thr phosphotases

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9
Q

PP2B

A

calcineruin
ser/thr phosphotase
ca dependendent because it has EF hand domain
regulated by calmodulin in opposition

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10
Q

PP5

A

activated by a lipid

arachidonic acid removes auto inhibitory domain

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11
Q

IP3

A

releases calcium from ER

IP3 receptor

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12
Q

DAG

A

activates PKC

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13
Q

ser/thr phosphotases

A

need zinc and iron

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14
Q

tyr phosphotases

A

have cysitein at active site

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15
Q

ph domain

A

docking site for phospholipid heads

ph domain is on the protein

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16
Q

SRC

A

non receptor Tyr K
intracellular
no ligand

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17
Q

SERCA

A

into ER

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18
Q

PMCA

A

Out from cytosol

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19
Q

VDAC

A

lets Ca into mitochondria matrix
not just Ca
increases IP3 signal on ER

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20
Q

MCU

A

mito ca uniporter

when cyto high lets Ca in

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21
Q

NCLX

A

exports to cyto from mito

sodium or lithium exchanged for Ca

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22
Q

TPC1

A

on lysosomes

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23
Q

IP3R

A

on ER
IP3 binds
lets Ca out

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24
Q

Ryn R

A

EC coupling

voltage gated lets out of ER

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25
PiP3
any combo of 3,4,5 3 needed for docking site 45 substrate with PLC and regulates ion channels
26
agonist
amplifies state so r cant transduce and R can
27
antagonisti
binds either and prevents transduction
28
partial agonist
binds either amplifies state protects against other molecule so like if agonist is there it goes to r and if antagonist is there it goes to R
29
why receptors
convergence divergence common pathway transamplification
30
G proteins
``` bind GTP (active) GDP (inactive) GEFs and GTPases GPCR is the GEF (heterotrimeric) monomeric ```
31
Galpha s
stimulates AC
32
Galhpa i
inhibits AC
33
Galpha q11
activase phospholiapce C | PLC
34
Galpha 12/13
links GPCR to rho
35
Ras
``` monomeric G protein most important regulates cell cycle lipid tail and PTMs cancer source other one have Ras domain to gRASp GTP ```
36
Ran
mitoo nuclear import exportin importin stuff monomeric G protein
37
Rab
vessicles | monomeric G protein
38
Rho
actin cyto skeletin | monomeric G protein
39
Arf
vessiclse | monomeric G protein
40
GEF
exchanges GDP for GTP
41
GAP
GTP to GDP
42
block GAP
too active downstream effects | cant turn off
43
guanine nucleotide dissocioaition inhibitors
block GAP
44
regulate heterotrimeric G protein signaling ?
block receptor eliminate second messengers block GAP and GEF destroy ligand
45
SOC
low Ca response channel Extracellular Ca source long open
46
CRAC
special SOC for low ER Ca stores Stim ORai
47
Stim
identifies low Ca because Ca isnt bound to its EF hand domains
48
Orai
in PM opened when stim comes together during low Ca
49
Ca signal types
spark blips waves
50
JAK STAT
``` ligand binds receptor dimerizeds jak associates (different SOCS blocks) jak auto ps to be active adds p to receptor STAT binds p site on receptor JAK ads p to stat stat dissociates and dimerizes translocate to nucleas as TF PIAS can inhibit STAT to DNA binding ```
51
Receptor tyrosine kinase
dimerase autophospohrylation ligand is a dimer
52
selectivity for ser/thr vs tyr
tyr is bigger so the catalytic site is bigger
53
arachidonic acid derivatives
prostaglandins thromboxanes/leukotrienes PP5 activation
54
stop cAMP
phosphodiesterase PDE | breaks down cAMP
55
why not delete AC
kill the cell
56
PI45P2
makes DAG or IP3
57
IP3 effect
release Ca from ER
58
PIP3 kinase
adds P to C3 for p345P3 for docking site
59
phosphatidic acid
DAG + DGK
60
prostaglandins
vasodilation/constriction immune responses platelets
61
leukotrienes
asthma
62
FA binding proteins
bring into cell nucleas and transfer to PPAR
63
PPAR
takes FA and acts as TF