1dp4

<table><tr><td colspan='2'>[[1dp4]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Buffalo_rat Buffalo rat]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DP4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1DP4 FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>

<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Guanylate_cyclase Guanylate cyclase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.6.1.2 4.6.1.2] </span></td></tr>

[[https://www.uniprot.org/uniprot/ANPRA_RAT ANPRA_RAT]] Receptor for the atrial natriuretic peptide NPPA/ANP and the brain natriuretic peptide NPPB/BNP which are potent vasoactive hormones playing a key role in cardiovascular homeostasis. Has guanylate cyclase activity upon binding of the ligand (By similarity).

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== Publication Abstract from PubMed ==

The atrial natriuretic peptide (ANP) hormone is secreted by the heart in response to an increase in blood pressure. ANP exhibits several potent anti-hypertensive actions in the kidney, adrenal gland and vascular system. These actions are induced by hormone binding extracellularly to the ANP receptor, thereby activating its intracellular guanylyl cyclase domain for the production of cyclic GMP. Here we present the crystal structure of the glycosylated dimerized hormone-binding domain of the ANP receptor at 2.0-A resolution. The monomer comprises two interconnected subdomains, each encompassing a central beta-sheet flanked by alpha-helices, and exhibits the type I periplasmic binding protein fold. Dimerization is mediated by the juxtaposition of four parallel helices, arranged two by two, which brings the two protruding carboxy termini into close relative proximity. From affinity labelling and mutagenesis studies, the ANP-binding site maps to the side of the dimer crevice and extends to near the dimer interface. A conserved chloride-binding site is located in the membrane distal domain, and we found that hormone binding is chloride dependent. These studies suggest mechanisms for hormone activation and the allostery of the ANP receptor.

Structure of the dimerized hormone-binding domain of a guanylyl-cyclase-coupled receptor.,van den Akker F, Zhang X, Miyagi M, Huo X, Misono KS, Yee VC Nature. 2000 Jul 6;406(6791):101-4. PMID:10894551<ref>PMID:10894551</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>

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== References ==

<references/>

[[Category: Buffalo rat]]

[[Category: Guanylate cyclase]]

[[Category: Akker, F van den]]

[[Category: Huo, X]]

[[Category: Misono, K S]]

[[Category: Miyagi, M]]

[[Category: Yee, V C]]

[[Category: Zhang, X]]

[[Category: Dimer]]

[[Category: Periplasmic binding protein fold]]