1j5m

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(Difference between revisions)

Revision as of 08:23, 14 June 2023

SOLUTION STRUCTURE OF THE SYNTHETIC 113CD_3 BETA_N DOMAIN OF LOBSTER METALLOTHIONEIN-1

Structural highlights

1j5m is a 1 chain structure with sequence from Homarus americanus. This structure supersedes the now removed PDB entry 1hzr. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

MT1_HOMAM Metallothioneins have a high content of cysteine residues that bind various heavy metals. The different forms of lobster metallothioneins may have different biological functions. Class I MTS in marine crustacea are involved in the sequestration of elevated levels of heavy-metal ions. Binds 6 metal ions. Known to bind cadmium.

Publication Abstract from PubMed

The three-dimensional structures of the isolated Cd(3)beta domains from Homarus americanus metallothionein have been determined by NMR methods in order to establish a set of beta-domain structures for comparative analysis. First, it was determined that the Cd-cysteine connectivities forming the Cd(3)S(9) metal center were identical to those observed for the beta(N) domain in the native holoprotein. Time- and temperature-dependence studies of the (113)Cd and (1)H 1D-NMR spectra indicated that the beta(N) domain undergoes slow conformational changes before reaching an equilibrium structure. In addition to structural information provided by the metal-to-cysteine connectivities, Phi, chi(1) and chi(2) angle constraints, three H(N...)S hydrogen bond interactions were also determined from a long-range optimized (1)H(N)-(113)Cd HMQC experiment. A simulated annealing protocol was applied to the distance and angle constraints obtained from the 2D-NMR experiments to calculate the three-dimensional structure of the synthetic Cd(3)beta(N) domain of lobster metallothionein. Structure-reactivity relationships are proposed for the reactions of Cd(3)beta domains with 5,5'-dithiobis(2-nitrobenzoate), based on comparisons of surface exposure of sulfur atoms of the lobster and rabbit Cd(3)beta domain structures. Finally, the surface exposure of the beta domains of lobster is compared with beta domains from mammalian metallothioneins.

Structure of the (113)Cd(3)beta domains from Homarus americanus metallothionein-1: hydrogen bonding and solvent accessibility of sulfur atoms.,Munoz A, Forsterling FH, Shaw CF 3rd, Petering DH J Biol Inorg Chem. 2002 Sep;7(7-8):713-24. Epub 2002 Mar 13. PMID:12203008^[1]

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

References

↑ Munoz A, Forsterling FH, Shaw CF 3rd, Petering DH. Structure of the (113)Cd(3)beta domains from Homarus americanus metallothionein-1: hydrogen bonding and solvent accessibility of sulfur atoms. J Biol Inorg Chem. 2002 Sep;7(7-8):713-24. Epub 2002 Mar 13. PMID:12203008 doi:10.1007/s00775-002-0345-3

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1j5m"

@@ Line 1: / Line 1: @@
 ==SOLUTION STRUCTURE OF THE SYNTHETIC 113CD_3 BETA_N DOMAIN OF LOBSTER METALLOTHIONEIN-1==
-<StructureSection load='1j5m' size='340' side='right'caption='[[1j5m]], [[NMR_Ensembles_of_Models | 1 NMR models]]' scene=''>
+<StructureSection load='1j5m' size='340' side='right'caption='[[1j5m]]' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1j5m]] is a 1 chain structure. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1hzr 1hzr]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1J5M OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1J5M FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1j5m]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homarus_americanus Homarus americanus]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1hzr 1hzr]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1J5M OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1J5M FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CD:CADMIUM+ION'>CD</scene></td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1j5l|1j5l]]</div></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=1j5m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1j5m OCA], [https://pdbe.org/1j5m PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1j5m RCSB], [https://www.ebi.ac.uk/pdbsum/1j5m PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1j5m ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[https://www.uniprot.org/uniprot/MT1_HOMAM MT1_HOMAM]] Metallothioneins have a high content of cysteine residues that bind various heavy metals. The different forms of lobster metallothioneins may have different biological functions. Class I MTS in marine crustacea are involved in the sequestration of elevated levels of heavy-metal ions. Binds 6 metal ions. Known to bind cadmium.
+[https://www.uniprot.org/uniprot/MT1_HOMAM MT1_HOMAM] Metallothioneins have a high content of cysteine residues that bind various heavy metals. The different forms of lobster metallothioneins may have different biological functions. Class I MTS in marine crustacea are involved in the sequestration of elevated levels of heavy-metal ions. Binds 6 metal ions. Known to bind cadmium.
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 23: / Line 22: @@
 __TOC__
 </StructureSection>
+[[Category: Homarus americanus]]
 [[Category: Large Structures]]
-[[Category: Forsterling, F H]]
+[[Category: Forsterling FH]]
-[[Category: III, C F.Shaw]]
+[[Category: Munoz A]]
-[[Category: Munoz, A]]
+[[Category: Petering DH]]
-[[Category: Petering, D H]]
+[[Category: Shaw III CF]]
-[[Category: 113cd-nmr]]
-[[Category: 2d-nmr]]
-[[Category: Beta-domain]]
-[[Category: Conformational change]]
-[[Category: Hn-s-hydrogen bond]]
-[[Category: Metal binding protein]]
-[[Category: Metal-sulfur-cluster]]
-[[Category: Metallothionein]]

1j5m

From Proteopedia

Revision as of 08:23, 14 June 2023

SOLUTION STRUCTURE OF THE SYNTHETIC 113CD_3 BETA_N DOMAIN OF LOBSTER METALLOTHIONEIN-1

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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