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Description

Title :   AURACYANIN A: A "BLUE" COPPER PROTEIN FROM THE GREEN THERMOPHILIC PHOTOSYNTHETIC BACTERIUM,CHLOROFLEXUS AURANTIACUS

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

Date :   13 Jul 05 (Deposition) - 11 Jul 06 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.85

Chains :   Asym. Unit : A
Biol. Unit 1: A  (1x)
Biol. Unit 2: A  (2x)

Keywords :   Cupredoxin Fold, Electron Transport (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   M. Lee, J. M. Guss, H. C. Freeman
The Crystal Structure Of Auracyanin A At 1. 85 A Resolution: Why The Photosynthetic Bacterium Chloroflexus Needs Two Almost Identical 'Blue' Copper Proteins
To Be Published
PubMed: search

Compounds

Molecule 1 - AURACYANIN A
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PRSETA
	Expression System Strain	:	BL21(DE3)PLYSS
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Organism Scientific	:	CHLOROFLEXUS AURANTIACUS
	Organism Taxid	:	1108

Structural Features

Chains, Units

		1
Asymmetric Unit	:	A
Biological Unit 1 (1x)	:	A
Biological Unit 2 (2x)	:	A

Summary Information (see also Sequences/Alignments below)

Ligands, Modified Residues, Ions (2, 3)

Asymmetric Unit (2, 3)

No.	Name	Count	Type	Full Name
1	CU	1	Ligand/Ion	COPPER (II) ION
2	SO4	2	Ligand/Ion	SULFATE ION

Biological Unit 1 (1, 2)

No.	Name	Count	Type	Full Name
1	CU	-1	Ligand/Ion	COPPER (II) ION
2	SO4	2	Ligand/Ion	SULFATE ION

Biological Unit 2 (1, 4)

No.	Name	Count	Type	Full Name
1	CU	-1	Ligand/Ion	COPPER (II) ION
2	SO4	4	Ligand/Ion	SULFATE ION

Sites (3, 3)

Asymmetric Unit (3, 3)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	GLN A:57 , HIS A:58 , CYS A:123 , HIS A:128 , MET A:132	BINDING SITE FOR RESIDUE CU A 140
2	AC2	SOFTWARE	ALA A:89 , VAL A:109 , THR A:110 , HOH A:148 , HOH A:156 , HOH A:178 , HOH A:199	BINDING SITE FOR RESIDUE SO4 A 143
3	AC3	SOFTWARE	PRO A:82 , LEU A:100 , ASN A:102 , THR A:118 , LYS A:135 , HOH A:204 , HOH A:226 , HOH A:236	BINDING SITE FOR RESIDUE SO4 A 144

SS Bonds (0, 0)

(no "SS Bond" information available for 2AAN)

Cis Peptide Bonds (1, 1)

Asymmetric Unit

No.	Residues
1	Tyr A:129	-	Pro A:130

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

(no "SAP(SNP)/Variant" information available for 2AAN)

PROSITE Motifs (1, 1)

Asymmetric Unit (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	COPPER_BLUE	PS00196	Type-1 copper (blue) proteins signature.	AURA_CHLAA	139-156	1	A:116-133

Biological Unit 1 (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	COPPER_BLUE	PS00196	Type-1 copper (blue) proteins signature.	AURA_CHLAA	139-156	1	A:116-133

Biological Unit 2 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	COPPER_BLUE	PS00196	Type-1 copper (blue) proteins signature.	AURA_CHLAA	139-156	2	A:116-133

Exons (0, 0)

(no "Exon" information available for 2AAN)

Sequences/Alignments

Asymmetric Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:123
 aligned with AURA_CHLAA | Q8RMH6 from UniProtKB/Swiss-Prot  Length:162

    Alignment length:123
                                    49        59        69        79        89        99       109       119       129       139       149       159   
           AURA_CHLAA    40 GPVTIEIGSKGEELAFDKTELTVSAGQTVTIRFKNNSAVQQHNWILVKGGEAEAANIANAGLSAGPAANYLPADKSNIIAESPLANGNETVEVTFTAPAAGTYLYICTVPGHYPLMQGKLVVN 162
               SCOP domains d2aana_ A: automated matches                                                                                                SCOP domains
               CATH domains 2aanA00 A:17-139 Cupredoxins -  blue copper proteins                                                                        CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeee...........eeeee...eeeeeee..........eee..hhhhhhhhhhhhhhhhhhhh........eeee........eeeeeee....eeeeee..........eeeeeee Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------COPPER_BLUE       ------ PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------- Transcript
                 2aan A  17 GPVTIEIGSKGEELAFDKTELTVSAGQTVTIRFKNNSAVQQHNWILVKGGEAEAANIANAGLSAGPAANYLPADKSNIIAESPLANGNETVEVTFTAPAAGTYLYICTVPGHYPLMQGKLVVN 139
                                    26        36        46        56        66        76        86        96       106       116       126       136

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
		→ Modified Residue	(blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
	x	→ Chemical Group	(purple background, 'x', labelled with number + name, e.g. ACE or NH2)
	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

Classification and Annotation

SCOP Domains (1, 1)

Asymmetric Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: All beta proteins (24004)

Fold: Cupredoxin-like (545)

Superfamily: Cupredoxins (543)

Family: automated matches (57)

Protein domain: automated matches (57)

Chloroflexus aurantiacus [TaxId: 1108] (1)

d2aana_

CATH Domains (1, 1)

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Beta (13760)

Architecture: Sandwich (5577)

Topology: Immunoglobulin-like (3897)

Homologous Superfamily: Cupredoxins - blue copper proteins (420)

Chloroflexus aurantiacus. Organism_taxid: 1108. (1)

2aanA00

A:17-139

Pfam Domains (0, 0)

(no "Pfam Domain" information available for 2AAN)

Gene Ontology (6, 6)

Asymmetric Unit(hide GO term definitions)

Chain A (AURA_CHLAA | Q8RMH6)

molecular function
	GO:0005507	copper ion binding	Interacting selectively and non-covalently with copper (Cu) ions.
	GO:0009055	electron carrier activity	Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
biological process
	GO:0055114	oxidation-reduction process	A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
cellular component
	GO:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
	GO:0005886	plasma membrane	The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

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	2aan
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Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 3)

Sites (3, 3)

SS Bonds (0, 0)

Cis Peptide Bonds (1, 1)

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