1vde

From Proteopedia

(Difference between revisions)

Revision as of 10:22, 8 January 2020

PI-SCEI, A HOMING ENDONUCLEASE WITH PROTEIN SPLICING ACTIVITY

Structural highlights

1vde is a 2 chain structure with sequence from Atcc 18824. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Activity:	H(+)-transporting two-sector ATPase, with EC number 3.6.3.14
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[VATA_YEAST] Catalytic subunit of the peripheral V1 complex of vacuolar ATPase. V-ATPase (vacuolar ATPase) is responsible for acidifying a variety of intracellular compartments in eukaryotic cells. It is an electrogenic proton pump that generates a proton motive force of 180 mV, inside positive and acidic, in the vacuolar membrane vesicles. It may participate in maintenance of cytoplasmic Ca(2+) homeostasis. This is a catalytic subunit.^[1] PI-SceI is an endonuclease that can cleave at a site present in a VMA1 allele that lacks the derived endonuclease segment of the open reading frame; cleavage at this site only occurs during meiosis and initiates "homing", a genetic event that converts a VMA1 allele lacking VDE into one that contains it.^[2]

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

PI-Scel is a bifunctional yeast protein that propagates its mobile gene by catalyzing protein splicing and site-specific DNA double-strand cleavage. Here, we report the 2.4 A crystal structure of the PI-Scel protein. The structure is composed of two separate domains (I and II) with novel folds and different functions. Domain I, which is elongated and formed largely from seven beta sheets, harbors the N and C termini residues and two His residues that are implicated in protein splicing. Domain II, which is compact and is primarily composed of two similar alpha/beta motifs related by local two-fold symmetry, contains the putative nuclease active site with a cluster of two acidic residues and one basic residue commonly found in restriction endonucleases. This report presents prototypic structures of domains with single endonuclease and protein splicing active sites.

Crystal structure of PI-SceI, a homing endonuclease with protein splicing activity.,Duan X, Gimble FS, Quiocho FA Cell. 1997 May 16;89(4):555-64. PMID:9160747^[3]

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

References

↑ Gimble FS, Thorner J. Homing of a DNA endonuclease gene by meiotic gene conversion in Saccharomyces cerevisiae. Nature. 1992 May 28;357(6376):301-6. PMID:1534148 doi:http://dx.doi.org/10.1038/357301a0
↑ Gimble FS, Thorner J. Homing of a DNA endonuclease gene by meiotic gene conversion in Saccharomyces cerevisiae. Nature. 1992 May 28;357(6376):301-6. PMID:1534148 doi:http://dx.doi.org/10.1038/357301a0
↑ Duan X, Gimble FS, Quiocho FA. Crystal structure of PI-SceI, a homing endonuclease with protein splicing activity. Cell. 1997 May 16;89(4):555-64. PMID:9160747

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

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

@@ Line 1: / Line 1: @@
 ==PI-SCEI, A HOMING ENDONUCLEASE WITH PROTEIN SPLICING ACTIVITY==
-<StructureSection load='1vde' size='340' side='right' caption='[[1vde]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
+<StructureSection load='1vde' size='340' side='right'caption='[[1vde]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[1vde]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_18824 Atcc 18824]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VDE OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1VDE FirstGlance]. <br>
@@ Line 33: / Line 33: @@
 </StructureSection>
 [[Category: Atcc 18824]]
+[[Category: Large Structures]]
 [[Category: Duan, X]]
 [[Category: Quiocho, F A]]

1vde

From Proteopedia

Revision as of 10:22, 8 January 2020

PI-SCEI, A HOMING ENDONUCLEASE WITH PROTEIN SPLICING ACTIVITY

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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