7OFG image
Deposition Date 2021-05-04
Release Date 2021-10-13
Last Version Date 2024-10-16
Entry Detail
PDB ID:
7OFG
Keywords:
HORMONE
Title:
Oxytocin NMR solution structure
Biological Source:
Source Organism(s):
Homo sapiens (Taxon ID: 9606)
Method Details:
Experimental Method:
SOLUTION NMR
Conformers Calculated:
50
Conformers Submitted:
14
Selection Criteria:
structures with the lowest energy
7OFG validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Oxytocin
Gene (Uniprot):OXT
Chain IDs:A
Chain Length:10
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:P01178 Pfam ID:PF00220
Ligand Molecules
NA
Primary Citation
Determining the structure and binding mechanism of oxytocin-Cu 2+ complex using paramagnetic relaxation enhancement NMR analysis.
J.Biol.Inorg.Chem. 26 809 815 (2021)
PMID: 34459989 DOI: 10.1007/s00775-021-01897-1

Abstact

Oxytocin is a neuropeptide that binds copper ions in nature. The structure of oxytocin in interaction with Cu2+ was determined here by NMR, showing which atoms of the peptide are involved in binding. Paramagnetic relaxation enhancement NMR analyses indicated a binding mechanism where the amino terminus was required for binding and subsequently Tyr2, Ile3 and Gln4 bound in that order. The aromatic ring of Tyr2 formed a π-cation interaction with Cu2+. Oxytocin copper complex structure revealed by paramagnetic relaxation enhancement NMR analyses.

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Primary Citation of related structures
7OFG
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