1r14

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
m (Protected "1r14" [edit=sysop:move=sysop])
Current revision (07:25, 9 October 2024) (edit) (undo)
 
(8 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:1r14.png|left|200px]]
 
-
{{STRUCTURE_1r14| PDB=1r14 | SCENE= }}
+
==Carbohydrate recognition and neck domains of surfactant protein A (Sp-A) containing samarium==
 +
<StructureSection load='1r14' size='340' side='right'caption='[[1r14]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
 +
== Structural highlights ==
 +
<table><tr><td colspan='2'>[[1r14]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1R14 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1R14 FirstGlance]. <br>
 +
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5&#8491;</td></tr>
 +
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene>, <scene name='pdbligand=SM:SAMARIUM+(III)+ION'>SM</scene></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=1r14 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1r14 OCA], [https://pdbe.org/1r14 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1r14 RCSB], [https://www.ebi.ac.uk/pdbsum/1r14 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1r14 ProSAT]</span></td></tr>
 +
</table>
 +
== Function ==
 +
[https://www.uniprot.org/uniprot/SFTPA_RAT SFTPA_RAT] In presence of calcium ions, it binds to surfactant phospholipids and contributes to lower the surface tension at the air-liquid interface in the alveoli of the mammalian lung and is essential for normal respiration.
 +
== Evolutionary Conservation ==
 +
[[Image:Consurf_key_small.gif|200px|right]]
 +
Check<jmol>
 +
<jmolCheckbox>
 +
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/r1/1r14_consurf.spt"</scriptWhenChecked>
 +
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
 +
<text>to colour the structure by Evolutionary Conservation</text>
 +
</jmolCheckbox>
 +
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1r14 ConSurf].
 +
<div style="clear:both"></div>
 +
<div style="background-color:#fffaf0;">
 +
== Publication Abstract from PubMed ==
 +
Surfactant protein A (SP-A), one of four proteins associated with pulmonary surfactant, binds with high affinity to alveolar phospholipid membranes, positioning the protein at the first line of defense against inhaled pathogens. SP-A exhibits both calcium-dependent carbohydrate binding, a characteristic of the collectin family, and specific interactions with lipid membrane components. The crystal structure of the trimeric carbohydrate recognition domain and neck domain of SP-A was solved to 2.1-A resolution with multiwavelength anomalous dispersion phasing from samarium. Two metal binding sites were identified, one in the highly conserved lectin site and the other 8.5 A away. The interdomain carbohydrate recognition domain-neck angle is significantly less in SP-A than in the homologous collectins, surfactant protein D, and mannose-binding protein. This conformational difference may endow the SP-A trimer with a more extensive hydrophobic surface capable of binding lipophilic membrane components. The appearance of this surface suggests a putative binding region for membrane-derived SP-A ligands such as phosphatidylcholine and lipid A, the endotoxic lipid component of bacterial lipopolysaccharide that mediates the potentially lethal effects of Gram-negative bacterial infection.
-
===Carbohydrate recognition and neck domains of surfactant protein A (Sp-A) containing samarium===
+
Crystal structure of trimeric carbohydrate recognition and neck domains of surfactant protein A.,Head JF, Mealy TR, McCormack FX, Seaton BA J Biol Chem. 2003 Oct 31;278(44):43254-60. Epub 2003 Aug 11. PMID:12913002<ref>PMID:12913002</ref>
-
{{ABSTRACT_PUBMED_12913002}}
+
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-
 
+
</div>
-
==About this Structure==
+
<div class="pdbe-citations 1r14" style="background-color:#fffaf0;"></div>
-
[[1r14]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1R14 OCA].
+
== References ==
-
 
+
<references/>
-
==Reference==
+
__TOC__
-
<ref group="xtra">PMID:012913002</ref><references group="xtra"/>
+
</StructureSection>
 +
[[Category: Large Structures]]
[[Category: Rattus norvegicus]]
[[Category: Rattus norvegicus]]
-
[[Category: Head, J F.]]
+
[[Category: Head JF]]
-
[[Category: McCormack, F X.]]
+
[[Category: McCormack FX]]
-
[[Category: Mealy, T R.]]
+
[[Category: Mealy TR]]
-
[[Category: Seaton, B A.]]
+
[[Category: Seaton BA]]
-
[[Category: Alpha helical neck region]]
+
-
[[Category: Crd]]
+
-
[[Category: Sugar binding protein]]
+

Current revision

Carbohydrate recognition and neck domains of surfactant protein A (Sp-A) containing samarium

PDB ID 1r14

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1r14"
Personal tools