This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

3cw2

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 07:46, 2 February 2022

Crystal structure of the intact archaeal translation initiation factor 2 from Sulfolobus solfataricus .

Structural highlights

3cw2 is a 12 chain structure with sequence from Atcc 35091. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Gene:	eif2g, SSO0412 (ATCC 35091), eif2a, SSO1050 (ATCC 35091), eif2b, SSO2381 (ATCC 35091)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[IF2G_SULSO] eIF-2 functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA (By similarity). [IF2B_SULSO] eIF-2 functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA (By similarity). [IF2A_SULSO] eIF-2 functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA (By similarity).

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

In Eukarya and Archaea, translation initiation factor 2 (eIF2/aIF2), which contains three subunits (alpha, beta, and gamma), is pivotal for binding of charged initiator tRNA to the small ribosomal subunit. The crystal structure of the full-sized heterotrimeric aIF2 from Sulfolobus solfataricus in the nucleotide-free form has been determined at 2.8-A resolution. Superposition of four molecules in the asymmetric unit of the crystal and the comparison of the obtained structures with the known structures of the aIF2alphagamma and aIF2betagamma heterodimers revealed high conformational flexibility in the alpha- and beta-subunits. In fact, the full-sized aIF2 consists of a rigid central part, formed by the gamma-subunit, domain 3 of the alpha-subunit, and the N-terminal alpha-helix of the beta-subunit, and two mobile "wings," formed by domains 1 and 2 of the alpha-subunit, the central part, and the zinc-binding domain of the beta-subunit. High structural flexibility of the wings is probably required for interaction of aIF2 with the small ribosomal subunit. Comparative analysis of all known structures of the gamma-subunit alone and within the heterodimers and heterotrimers in nucleotide-bound and nucleotide-free states shows that the conformations of switch 1 and switch 2 do not correlate with the assembly or nucleotide states of the protein.

Crystal structure of the intact archaeal translation initiation factor 2 demonstrates very high conformational flexibility in the alpha- and beta-subunits.,Stolboushkina E, Nikonov S, Nikulin A, Blasi U, Manstein DJ, Fedorov R, Garber M, Nikonov O J Mol Biol. 2008 Oct 10;382(3):680-91. Epub 2008 Jul 22. PMID:18675278^[1]

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

References

↑ Stolboushkina E, Nikonov S, Nikulin A, Blasi U, Manstein DJ, Fedorov R, Garber M, Nikonov O. Crystal structure of the intact archaeal translation initiation factor 2 demonstrates very high conformational flexibility in the alpha- and beta-subunits. J Mol Biol. 2008 Oct 10;382(3):680-91. Epub 2008 Jul 22. PMID:18675278 doi:http://dx.doi.org/S0022-2836(08)00881-4

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/3cw2"

@@ Line 1: / Line 1: @@
 ==Crystal structure of the intact archaeal translation initiation factor 2 from Sulfolobus solfataricus .==
-<StructureSection load='3cw2' size='340' side='right' caption='[[3cw2]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
+<StructureSection load='3cw2' size='340' side='right'caption='[[3cw2]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3cw2]] is a 12 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_35091 Atcc 35091]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3CW2 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3CW2 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3cw2]] is a 12 chain structure with sequence from [https://en.wikipedia.org/wiki/Atcc_35091 Atcc 35091]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3CW2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3CW2 FirstGlance]. <br>
-</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">eif2g, SSO0412 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2287 ATCC 35091]), eif2a, SSO1050 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2287 ATCC 35091]), eif2b, SSO2381 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2287 ATCC 35091])</td></tr>
+</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">eif2g, SSO0412 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2287 ATCC 35091]), eif2a, SSO1050 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2287 ATCC 35091]), eif2b, SSO2381 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2287 ATCC 35091])</td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3cw2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3cw2 OCA], [http://pdbe.org/3cw2 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3cw2 RCSB], [http://www.ebi.ac.uk/pdbsum/3cw2 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3cw2 ProSAT]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3cw2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3cw2 OCA], [https://pdbe.org/3cw2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3cw2 RCSB], [https://www.ebi.ac.uk/pdbsum/3cw2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3cw2 ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/IF2G_SULSO IF2G_SULSO]] eIF-2 functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA (By similarity). [[http://www.uniprot.org/uniprot/IF2B_SULSO IF2B_SULSO]] eIF-2 functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA (By similarity). [[http://www.uniprot.org/uniprot/IF2A_SULSO IF2A_SULSO]] eIF-2 functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA (By similarity).
+[[https://www.uniprot.org/uniprot/IF2G_SULSO IF2G_SULSO]] eIF-2 functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA (By similarity). [[https://www.uniprot.org/uniprot/IF2B_SULSO IF2B_SULSO]] eIF-2 functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA (By similarity). [[https://www.uniprot.org/uniprot/IF2A_SULSO IF2A_SULSO]] eIF-2 functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA (By similarity).
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 33: / Line 33: @@
 </StructureSection>
 [[Category: Atcc 35091]]
+[[Category: Large Structures]]
 [[Category: Blaesi, U]]
 [[Category: Fedorov, R V]]

3cw2

From Proteopedia

Revision as of 07:46, 2 February 2022

Crystal structure of the intact archaeal translation initiation factor 2 from Sulfolobus solfataricus .

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox