9Q7P | pdb_00009q7p

Solution Structure of the Beta Domain of Human MT1A Bound to 6 Cu(I) Ions

PDB DOI: https://doi.org/10.2210/pdb9Q7P/pdb
BMRB: 31267

Classification: METAL BINDING PROTEIN
Organism(s): Homo sapiens
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2025-08-25 Released: 2026-08-05
Deposition Author(s): Melenbacher, A., Rintala-Dempsey, A.C., Shaw, G.S., Stillman, M.J.
Funding Organization(s): Natural Sciences and Engineering Research Council (NSERC, Canada)

Experimental Data Snapshot

Method: SOLUTION NMR
Conformers Calculated: 50
Conformers Submitted: 10
Selection Criteria: structures with the lowest energy

wwPDB Validation 3D Report Full Report

Validation slider image for 9Q7P

This is version 1.0 of the entry. See complete history.

Literature

The NMR structure of human Cu6-B MT1 reveals that the Cu6S9 binding site adopts a ladder structure not the closed prism structure of inorganic Cu(I)-thiolate compounds

Melenbacher, A., Rintala-Dempsey, A.C., Liu, L., Chang, L., Shaw, G.S., Stillman, M.J.

To be published.

Macromolecule Content

Total Structure Weight: 9.97 kDa
Atom Count: 221
Modeled Residue Count: 32
Deposited Residue Count: 90
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Immunoglobulin G-binding protein G, Metallothionein-1A fusion,Metallothionein-1A	A	90	Homo sapiens	Mutation(s): 0 Gene Names: spg, MT1A, MT1S
UniProt & NIH Common Fund Data Resources
Find proteins for P04731 (Homo sapiens) Explore P04731 Go to UniProtKB: P04731
PHAROS: P04731 GTEx: ENSG00000205362
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P04731
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
CU1 (Subject of Investigation/LOI) Query on CU1 Download:Ideal Coordinates CCD File SDF format, chain G [auth A] SDF format, chain F [auth A] SDF format, chain E [auth A] SDF format, chain D [auth A] SDF format, chain C [auth A] SDF format, chain B [auth A] MOL2 format, chain G [auth A] MOL2 format, chain F [auth A] MOL2 format, chain E [auth A] MOL2 format, chain D [auth A] MOL2 format, chain C [auth A] MOL2 format, chain B [auth A] mmCIF format, chain G [auth A] mmCIF format, chain F [auth A] mmCIF format, chain E [auth A] mmCIF format, chain D [auth A] mmCIF format, chain C [auth A] mmCIF format, chain B [auth A]	B [auth A] C [auth A] D [auth A] E [auth A] F [auth A] B [auth A], C [auth A], D [auth A], E [auth A], F [auth A], G [auth A]	COPPER (I) ION Cu VMQMZMRVKUZKQL-UHFFFAOYSA-N		Interactions Focus chain B [auth A] Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A]

Experimental Data & Validation

Experimental Data

Method: SOLUTION NMR
Conformers Calculated: 50
Conformers Submitted: 10
Selection Criteria: structures with the lowest energy

Structure Validation

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Entry History

& Funding Information

Deposition Data

Released Date: 2026-08-05

Deposition Author(s):

Melenbacher, A.

Rintala-Dempsey, A.C.

Funding Organization	Location	Grant Number
Natural Sciences and Engineering Research Council (NSERC, Canada)	Canada	06545-2020
Natural Sciences and Engineering Research Council (NSERC, Canada)	Canada	2022-04748

Revision History (Full details and data files)

Version 1.0: 2026-08-05
Type: Initial release