5vmc

From Proteopedia

(Difference between revisions)

Revision as of 08:40, 30 September 2020

Influenza hemagglutinin H1 mutant DH1 in complex with 6'SLN

Structural highlights

5vmc is a 6 chain structure with sequence from I18a0. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, ,
NonStd Res:
Related:	5vmf, 5vmg, 5vmj
Gene:	HA (I18A0)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[HEMA_I18A0] Binds to sialic acid-containing receptors on the cell surface, bringing about the attachment of the virus particle to the cell. This attachment induces virion internalization of about two third of the virus particles through clathrin-dependent endocytosis and about one third through a clathrin- and caveolin-independent pathway. Plays a major role in the determination of host range restriction and virulence. Class I viral fusion protein. Responsible for penetration of the virus into the cell cytoplasm by mediating the fusion of the membrane of the endocytosed virus particle with the endosomal membrane. Low pH in endosomes induces an irreversible conformational change in HA2, releasing the fusion hydrophobic peptide. Several trimers are required to form a competent fusion pore (By similarity).

Publication Abstract from PubMed

Influenza pandemic occurs when a new strain from other animal species overcomes the inter-species barriers and supports rapid human-to-human transmission. A critical prerequisite to this process is that hemagglutinin (HA) acquires a few key mutations to switch from avian receptors to human receptors. Previous studies suggest that H1 and H2/H3 HAs use different sets of mutations for the switch. This report shows that HA from the 1918 H1N1 pandemic virus (1918H1 HA) adopts the set of mutations used by H2/H3 HAs in receptor-preference switch when its 130-loop is made similar to those of H2/H3 HAs. Thus, the 130-loop appears to be the key determinant for the different mutations employed by pandemic H1 or H2/H3 HA. The correlation of the mutational routes and the 130-loop as unraveled in this study opens the door for efficient investigation of mutations required by other HA subtypes for inter-human airborne transmission.

Determinant of receptor-preference switch in influenza hemagglutinin.,Ni F, Kondrashkina E, Wang Q Virology. 2017 Oct 18;513:98-107. doi: 10.1016/j.virol.2017.10.010. PMID:29055255^[1]

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

References

↑ Ni F, Kondrashkina E, Wang Q. Determinant of receptor-preference switch in influenza hemagglutinin. Virology. 2017 Oct 18;513:98-107. doi: 10.1016/j.virol.2017.10.010. PMID:29055255 doi:http://dx.doi.org/10.1016/j.virol.2017.10.010

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5vmc"

@@ Line 1: / Line 1: @@
 ==Influenza hemagglutinin H1 mutant DH1 in complex with 6'SLN==
-<StructureSection load='5vmc' size='340' side='right' caption='[[5vmc]], [[Resolution|resolution]] 2.15&Aring;' scene=''>
+<StructureSection load='5vmc' size='340' side='right'caption='[[5vmc]], [[Resolution|resolution]] 2.15&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5vmc]] is a 6 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5VMC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5VMC FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5vmc]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/I18a0 I18a0]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5VMC OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5VMC FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SIA:O-SIALIC+ACID'>SIA</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene></td></tr>
+<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=SIA:O-SIALIC+ACID'>SIA</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5vmf|5vmf]], [[5vmg|5vmg]], [[5vmj|5vmj]]</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=5vmc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5vmc OCA], [http://pdbe.org/5vmc PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5vmc RCSB], [http://www.ebi.ac.uk/pdbsum/5vmc PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5vmc ProSAT]</span></td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=88776 I18A0])</td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=5vmc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5vmc OCA], [http://pdbe.org/5vmc PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5vmc RCSB], [http://www.ebi.ac.uk/pdbsum/5vmc PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5vmc ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 19: / Line 21: @@
 </div>
 <div class="pdbe-citations 5vmc" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Hemagglutinin 3D structures|Hemagglutinin 3D structures]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
+[[Category: I18a0]]
+[[Category: Large Structures]]
 [[Category: Kondrashkina, E]]
 [[Category: Ni, F]]

5vmc

From Proteopedia

Revision as of 08:40, 30 September 2020

Influenza hemagglutinin H1 mutant DH1 in complex with 6'SLN

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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