all refs Flashcards

1
Q

O’Reilly and Olaya-Castro, 2014

A

Proved that LHCs display quantum features with no counterpart in classical physics which they efficiently exploit for energy transport

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2
Q

Rintamäki et al., 1997

A

Maximal phosphorylation of LHCII polypeptides only occurred at low light intensities and drastically decreased at higher irradiance

They demonstrated this using an immunological approach, using anti-pT antibodies

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3
Q

Lindert, Cramer, Meuli et al. 2009

A

MTF-1 has NLS in its DNA binding motif (zinc fingers), which confers constitutive nuclear localisation

Deleting zinc fingers –> no nuclear localisation

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4
Q

Meynard et al., 2011

A

TMPRSS6 expression induced by EPO, hypoxia, acute iron deprivation at protein level

They demonstrated that TMPRSS6 levels are also regulated by iron and BMP6 –> important physiological inducers (activators) of hepcidin expression

This exerts some negative feedback to make sure hepcidin is not overexpressed, to maintain homeostatic balance

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5
Q

Liu, Davidoff, Niss et al., 2012

A

Showed that HIF-mediated suppression of the hepcidin gene requires EPO induction

EPO –> associated with increased erythropoietic activity

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6
Q

Tobuchi et al., 2002

A

DMT1 splice variants (isoforms) exhibit a differential cell-type specific expression pattern and sub cellular localisation

DMT1A –> 3’ IRE, epithelial cell lines

DMT1B –> no IRE, blood cell lines

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7
Q

Zhang et al., 2009

A

Duodenal enterocytes and erythroid precursors cells use an alternative upstream promoter to express a ferroportin transcript with no 5’UTR –> not repressed in iron-deficient conditions

This allows to bypass the IRP/dependent repression in intestinal iron take + in erythroid precursors cells it enhances sensing of iron status and facilitates restriction of erythropoiesis in response to low systemic iron

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8
Q

Nakagawa et al., 2014

A

The sweet taste receptor TIR3 may mediate some of the effects of glucose on pancreatic B-cells, by further enhancing the metabolism of the sugar

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9
Q

Niemeyer et al., 1975

A

HkIV has a very high Km (around 10mM) and cooperative (Hill coefficient approx. 1.5)

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10
Q

Larion and Miller, 2012

A

Proposed the mnemonical model for cooperative binding in Glucokinase, according to which glucose acts as a homotropic effector over time:

Its steady state velocity go G6P production displays a sigmoidal response to increasing glucose concentrations

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11
Q

Hofmeister-Brix et al., 2013

A

GRP not expressed in pancreas. instead, GCK regulation is predominantly mediated by ubiquitination and interaction with proteins having ubiquitin-like domains

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