2AAN | pdb_00002aan

Auracyanin A: A "blue" copper protein from the green thermophilic photosynthetic bacterium,chloroflexus aurantiacus

PDB DOI: https://doi.org/10.2210/pdb2AAN/pdb

Classification: ELECTRON TRANSPORT
Organism(s): Chloroflexus aurantiacus
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2005-07-13 Released: 2006-07-11
Deposition Author(s): Lee, M., Guss, J.M., Freeman, H.C.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.85 Å
R-Value Free:
0.207 (Depositor), 0.211 (DCC)
R-Value Work:
0.162 (Depositor), 0.171 (DCC)
R-Value Observed:
0.164 (Depositor)

Starting Model: other
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wwPDB Validation 3D Report Full Report

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This is version 1.6 of the entry. See complete history.

Literature

The Crystal Structure of Auracyanin A at 1.85 A Resolution: Why the Photosynthetic Bacterium Chloroflexus Needs Two Almost Identical 'Blue' Copper Proteins

Lee, M., Guss, J.M., Freeman, H.C.

To be published.

Macromolecule Content

Total Structure Weight: 14.17 kDa
Atom Count: 1,004
Modeled Residue Count: 123
Deposited Residue Count: 139
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
auracyanin A	A	139	Chloroflexus aurantiacus	Mutation(s): 0
UniProt
Find proteins for Q8RMH6 (Chloroflexus aurantiacus (strain ATCC 29366 / DSM 635 / J-10-fl)) Explore Q8RMH6 Go to UniProtKB: Q8RMH6
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q8RMH6
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
SO4 Query on SO4 Download:Ideal Coordinates CCD File SDF format, chain D [auth A] SDF format, chain C [auth A] MOL2 format, chain D [auth A] MOL2 format, chain C [auth A] mmCIF format, chain D [auth A] mmCIF format, chain C [auth A]	C [auth A], D [auth A]	SULFATE ION O₄ S QAOWNCQODCNURD-UHFFFAOYSA-L		Interactions Focus chain C [auth A] Focus chain D [auth A] Interactions & Density Focus chain C [auth A] Focus chain D [auth A]
CU Query on CU 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]	COPPER (II) ION Cu JPVYNHNXODAKFH-UHFFFAOYSA-N		Interactions Focus chain B [auth A] Interactions & Density Focus chain B [auth A]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.85 Å
R-Value Free: 0.207 (Depositor), 0.211 (DCC)
R-Value Work: 0.162 (Depositor), 0.171 (DCC)
R-Value Observed: 0.164 (Depositor)

Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 70.578	α = 90
b = 70.578	β = 90
c = 45.665	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
AMoRE	phasing

Structure Validation

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Entry History

Deposition Data

Released Date: 2006-07-11

Deposition Author(s):

Revision History (Full details and data files)

Version 1.0: 2006-07-11
Type: Initial release
Version 1.1: 2008-04-30
Changes: Version format compliance
Version 1.2: 2011-07-13
Changes: Advisory, Derived calculations, Version format compliance
Version 1.3: 2018-05-23
Changes: Data collection
Version 1.4: 2019-10-23
Changes: Data collection
Version 1.5: 2024-03-13
Changes: Data collection, Database references, Derived calculations
Version 1.6: 2024-04-03
Changes: Refinement description

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.