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1wa9

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Revision as of 18:05, 22 January 2020

Crystal Structure of the PAS repeat region of the Drosophila clock protein PERIOD

Structural highlights

1wa9 is a 2 chain structure with sequence from Drome. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[PER_DROME] Essential for biological clock functions. Determines the period length of circadian and ultradian rhythms; an increase in PER dosage leads to shortened circadian rhythms and a decrease leads to lengthened circadian rhythms. Essential for the circadian rhythmicity of locomotor activity, eclosion behavior, and for the rhythmic component of the male courtship song that originates in the thoracic nervous system. The biological cycle depends on the rhythmic formation and nuclear localization of the TIM-PER complex. Light induces the degradation of TIM, which promotes elimination of PER. Nuclear activity of the heterodimer coordinatively regulates PER and TIM transcription through a negative feedback loop. Behaves as a negative element in circadian transcriptional loop. Does not appear to bind DNA, suggesting indirect transcriptional inhibition.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

PERIOD proteins are central components of the Drosophila and mammalian circadian clock. Their function is controlled by daily changes in synthesis, cellular localization, phosphorylation, degradation, as well as specific interactions with other clock components. Here we present the crystal structure of a Drosophila PERIOD (dPER) fragment comprising two tandemly organized PAS (PER-ARNT-SIM) domains (PAS-A and PAS-B) and two additional C-terminal alpha helices (alphaE and alphaF). Our analysis reveals a noncrystallographic dPER dimer mediated by intermolecular interactions of PAS-A with PAS-B and helix alphaF. We show that alphaF is essential for dPER homodimerization and that the PAS-A-alphaF interaction plays a crucial role in dPER clock function, as it is affected by the 29 hr long-period perL mutation.

Crystal structure and interactions of the PAS repeat region of the Drosophila clock protein PERIOD.,Yildiz O, Doi M, Yujnovsky I, Cardone L, Berndt A, Hennig S, Schulze S, Urbanke C, Sassone-Corsi P, Wolf E Mol Cell. 2005 Jan 7;17(1):69-82. PMID:15629718^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Yildiz O, Doi M, Yujnovsky I, Cardone L, Berndt A, Hennig S, Schulze S, Urbanke C, Sassone-Corsi P, Wolf E. Crystal structure and interactions of the PAS repeat region of the Drosophila clock protein PERIOD. Mol Cell. 2005 Jan 7;17(1):69-82. PMID:15629718 doi:10.1016/j.molcel.2004.11.022

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1wa9"

@@ Line 1: / Line 1: @@
 ==Crystal Structure of the PAS repeat region of the Drosophila clock protein PERIOD==
-<StructureSection load='1wa9' size='340' side='right' caption='[[1wa9]], [[Resolution|resolution]] 3.15&Aring;' scene=''>
+<StructureSection load='1wa9' size='340' side='right'caption='[[1wa9]], [[Resolution|resolution]] 3.15&Aring;' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[1wa9]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Drome Drome]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1WA9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1WA9 FirstGlance]. <br>
@@ Line 35: / Line 35: @@
 </StructureSection>
 [[Category: Drome]]
+[[Category: Large Structures]]
 [[Category: Berndt, A]]
 [[Category: Cardone, L]]

1wa9

From Proteopedia

Revision as of 18:05, 22 January 2020

Crystal Structure of the PAS repeat region of the Drosophila clock protein PERIOD

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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