9EDU | pdb_00009edu

Streptavidin-S112C bound to Cu(II)dpea cofactor

PDB DOI: https://doi.org/10.2210/pdb9EDU/pdb

Classification: METAL BINDING PROTEIN
Organism(s): Streptomyces avidinii
Expression System: Escherichia coli BL21
Mutation(s): Yes

Deposited: 2024-11-18 Released: 2025-11-26
Deposition Author(s): Minnetian, N.M., Borovik, A.S., Follmer, A.H.
Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.85 Å
R-Value Free:
0.183 (Depositor), 0.183 (DCC)
R-Value Work:
0.160 (Depositor), 0.160 (DCC)
R-Value Observed:
0.161 (Depositor)

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

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

Literature

Tuning the active site geometry and spectroscopic properties of artificial blue copper proteins

Minnetian, N.M., Follmer, A.H., Borovik, A.S.

To be published.

Macromolecule Content

Total Structure Weight: 17.44 kDa
Atom Count: 1,143
Modeled Residue Count: 125
Deposited Residue Count: 159
Unique protein chains: 1

Macromolecules

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Streptavidin	A	159	Streptomyces avidinii	Mutation(s): 1
UniProt
Find proteins for P22629 (Streptomyces avidinii) Explore P22629 Go to UniProtKB: P22629
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P22629
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
A1BIA (Subject of Investigation/LOI) Query on A1BIA Download:Ideal Coordinates CCD File SDF format, chain B [auth A] MOL2 format, chain B [auth A] mmCIF format, chain B [auth A]	B [auth A]	N-(3-{bis[2-(pyridin-2-yl)ethyl]amino}propyl)-5-[(3aR,4R,6aS)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]pentanamide C₂₇ H₃₈ N₆ O₂ S UQOFISLZDAPJQV-DGWZTRNLSA-N		Interactions Focus chain B [auth A] Interactions & Density Focus chain B [auth A]
SO4 Query on SO4 Download:Ideal Coordinates CCD File SDF format, chain G [auth A] MOL2 format, chain G [auth A] mmCIF format, chain G [auth A]	G [auth A]	SULFATE ION O₄ S QAOWNCQODCNURD-UHFFFAOYSA-L		Interactions Focus chain G [auth A] Interactions & Density Focus chain G [auth A]
CU (Subject of Investigation/LOI) Query on CU Download:Ideal Coordinates CCD File SDF format, chain D [auth A] SDF format, chain E [auth A] SDF format, chain F [auth A] MOL2 format, chain D [auth A] MOL2 format, chain E [auth A] MOL2 format, chain F [auth A] mmCIF format, chain D [auth A] mmCIF format, chain E [auth A] mmCIF format, chain F [auth A]	D [auth A], E [auth A], F [auth A]	COPPER (II) ION Cu JPVYNHNXODAKFH-UHFFFAOYSA-N		Interactions Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Interactions & Density Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A]
ACT (Subject of Investigation/LOI) Query on ACT Download:Ideal Coordinates CCD File SDF format, chain C [auth A] MOL2 format, chain C [auth A] mmCIF format, chain C [auth A]	C [auth A]	ACETATE ION C₂ H₃ O₂ QTBSBXVTEAMEQO-UHFFFAOYSA-M		Interactions Focus chain C [auth A] Interactions & Density Focus chain C [auth A]