2hqw

<StructureSection load='2hqw' size='340' side='right' caption='[[2hqw]], [[Resolution|resolution]] 1.90&Aring;' scene=''>

<table><tr><td colspan='2'>[[2hqw]] is a 2 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=2HQW OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2HQW FirstGlance]. <br>

</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene><br>

<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Calm1, Calm, Cam, Cam1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10116 Rattus norvegicus])</td></tr>

<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2hqw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hqw OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2hqw RCSB], [http://www.ebi.ac.uk/pdbsum/2hqw PDBsum]</span></td></tr>

[[http://www.uniprot.org/uniprot/NMDZ1_HUMAN NMDZ1_HUMAN]] Defects in GRIN1 are the cause of mental retardation autosomal dominant type 8 (MRD8) [MIM:[http://omim.org/entry/614254 614254]]. Mental retardation is characterized by significantly below average general intellectual functioning associated with impairments in adaptative behavior and manifested during the developmental period.<ref>PMID:21376300</ref>

[[http://www.uniprot.org/uniprot/NMDZ1_HUMAN NMDZ1_HUMAN]] NMDA receptor subtype of glutamate-gated ion channels with high calcium permeability and voltage-dependent sensitivity to magnesium. Mediated by glycine. This protein plays a key role in synaptic plasticity, synaptogenesis, excitotoxicity, memory acquisition and learning. It mediates neuronal functions in glutamate neurotransmission. Is involved in the cell surface targeting of NMDA receptors (By similarity).

<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hq/2hqw_consurf.spt"</scriptWhenChecked>

</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/chain_selection.php?pdb_ID=2ata ConSurf].

<div style="background-color:#fffaf0;">

== Publication Abstract from PubMed ==

Calmodulin (CaM) regulates tetrameric N-methyl-D-aspartate receptors (NMDARs) by binding tightly to the C0 and C1 regions of its NR1 subunit. A crystal structure (2HQW; 1.96 A) of calcium-saturated CaM bound to NR1C1 (peptide spanning 875-898) showed that NR1 S890, whose phosphorylation regulates membrane localization, was solvent protected, whereas the endoplasmic reticulum retention motif was solvent exposed. NR1 F880 filled the CaM C-domain pocket, whereas T886 was closest to the N-domain pocket. This 1-7 pattern was most similar to that in the CaM-MARCKS complex. Comparison of CaM-ligand wrap-around conformations identified a core tetrad of CaM C-domain residues (FLMM(C)) that contacted all ligands consistently. An identical tetrad of N-domain residues (FLMM(N)) made variable sets of contacts with ligands. This CaM-NR1C1 structure provides a foundation for designing mutants to test the role of CaM in NR1 trafficking as well as insights into how the homologous CaM domains have different roles in molecular recognition.

The NMDA receptor NR1 C1 region bound to calmodulin: structural insights into functional differences between homologous domains.,Ataman ZA, Gakhar L, Sorensen BR, Hell JW, Shea MA Structure. 2007 Dec;15(12):1603-17. PMID:18073110<ref>PMID:18073110</ref>

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

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*[[Calmodulin|Calmodulin]]

[[Category: Akyol, Z.]]

[[Category: Gakhar, L.]]

[[Category: Hell, J H.]]

[[Category: Shea, M A.]]

[[Category: Sorensen, B R.]]

[[Category: Nr1]]