1SD8 - JenaLib

Title :   ARSENATE REDUCTASE R60K MUTANT FROM E. COLI

Authors :   S. Demel, B. F. Edwards

Date :   13 Feb 04 (Deposition) - 15 Feb 05 (Release) - 22 May 13 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.59

Chains :   Asym. Unit : A
Biol. Unit 1: A  (1x)
Biol. Unit 2: A  (2x)
Biol. Unit 3: A  (2x)
Biol. Unit 4: A  (2x)

Keywords :   Arsc, Reductase, Arsenite, Arsenate, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   S. Demel, J. Shi, P. Martin, B. P. Rosen, B. F. Edwards
Arginine 60 In The Arsc Arsenate Reductase Of E. Coli Plasmid R773 Determines The Chemical Nature Of The Bound As(Iii) Product.
Protein Sci. V. 13 2330 2004
PubMed-ID: 15295115 | Reference-DOI: 10.1110/PS.04787204

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 8)

Asymmetric Unit (2, 8)

No.	Name	Count	Type	Full Name
1	CS	5	Ligand/Ion	CESIUM ION
2	SO4	3	Ligand/Ion	SULFATE ION

Biological Unit 1 (1, 3)

No.	Name	Count	Type	Full Name
1	CS	-1	Ligand/Ion	CESIUM ION
2	SO4	3	Ligand/Ion	SULFATE ION

Biological Unit 2 (1, 6)

No.	Name	Count	Type	Full Name
1	CS	-1	Ligand/Ion	CESIUM ION
2	SO4	6	Ligand/Ion	SULFATE ION

Biological Unit 3 (1, 6)

No.	Name	Count	Type	Full Name
1	CS	-1	Ligand/Ion	CESIUM ION
2	SO4	6	Ligand/Ion	SULFATE ION

Biological Unit 4 (1, 6)

No.	Name	Count	Type	Full Name
1	CS	-1	Ligand/Ion	CESIUM ION
2	SO4	6	Ligand/Ion	SULFATE ION

Sites (8, 8)

Asymmetric Unit (8, 8)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	CYS A:12 , THR A:14 , ASN A:62 , ARG A:94 , ARG A:107 , HOH A:1001 , HOH A:1002 , HOH A:1203 , HOH A:1212	BINDING SITE FOR RESIDUE SO4 A 201
2	AC2	SOFTWARE	ARG A:107 , HOH A:1096 , HOH A:1146 , HOH A:1172 , HOH A:1180	BINDING SITE FOR RESIDUE SO4 A 202
3	AC3	SOFTWARE	THR A:14 , ASN A:17 , PRO A:108 , SER A:109 , LYS A:126 , HOH A:1036 , HOH A:1075 , HOH A:1168 , HOH A:1173 , HOH A:1269	BINDING SITE FOR RESIDUE SO4 A 203
4	AC4	SOFTWARE	GLY A:26 , THR A:27	BINDING SITE FOR RESIDUE CS A 404
5	AC5	SOFTWARE	LEU A:113 , ASP A:114 , LEU A:116	BINDING SITE FOR RESIDUE CS A 401
6	AC6	SOFTWARE	GLU A:67 , ASP A:128 , HOH A:1075 , HOH A:1238	BINDING SITE FOR RESIDUE CS A 402
7	AC7	SOFTWARE	PRO A:38 , GLU A:43 , HOH A:1021 , HOH A:1185	BINDING SITE FOR RESIDUE CS A 403
8	AC8	SOFTWARE	GLU A:64 , GLN A:87 , HOH A:1093	BINDING SITE FOR RESIDUE CS A 405

SS Bonds (0, 0)

Cis Peptide Bonds (2, 2)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (1, 1)

Asymmetric Unit (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ARSC	PS51353	ArsC family profile.	ARSC1_ECOLX	3-133	1	A:3-133

Biological Unit 1 (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ARSC	PS51353	ArsC family profile.	ARSC1_ECOLX	3-133	1	A:3-133

Biological Unit 2 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ARSC	PS51353	ArsC family profile.	ARSC1_ECOLX	3-133	2	A:3-133

Biological Unit 3 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ARSC	PS51353	ArsC family profile.	ARSC1_ECOLX	3-133	2	A:3-133

Biological Unit 4 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ARSC	PS51353	ArsC family profile.	ARSC1_ECOLX	3-133	2	A:3-133

Exons (0, 0)

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
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Chain A from PDB  Type:PROTEIN  Length:138
 aligned with ARSC1_ECOLX | P08692 from UniProtKB/Swiss-Prot  Length:141

    Alignment length:138
                                    12        22        32        42        52        62        72        82        92       102       112       122       132        
          ARSC1_ECOLX     3 NITIYHNPACGTSRNTLEMIRNSGTEPTIILYLENPPSRDELVKLIADMGISVRALLRKNVEPYEQLGLAEDKFTDDQLIDFMLQHPILINRPIVVTPLGTRLCRPSEVVLDILQDAQKGAFTKEDGEKVVDEAGKRL 140
               SCOP domains d1sd8a_ A: automated matches                                                                                                               SCOP domains
               CATH domains 1sd8A00 A:3-140 Glutaredoxin                                                                                                               CATH domains
               Pfam domains ----ArsC-1sd8A01 A:7-115                                                                                         ------------------------- Pfam domains
         Sec.struct. author ..eee....hhhhhhhhhhhhhh....eee.......hhhhhhhhhhhhh..hhhhh...hhhhhhh.......hhhhhhhhhhhhhhhh...eeee..eeee..hhhhhhhh........ee.....eee....... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ARSC  PDB: A:3-133 UniProt: 3-133                                                                                                  ------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1sd8 A   3 NITIYHNPACGTSRNTLEMIRNSGTEPTIILYLENPPSRDELVKLIADMGISVRALLKKNVEPYEQLGLAEDKFTDDQLIDFMLQHPILINRPIVVTPLGTRLCRPSEVVLDILQDAQKGAFTKEDGEKVVDEAGKRL 140
                                    12        22        32        42        52        62        72        82        92       102       112       122       132

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)

CATH Domains (1, 1)

Pfam Domains (1, 1)

Gene Ontology (4, 4)

Asymmetric Unit(hide GO term definitions)

Chain A (ARSC1_ECOLX | P08692)

molecular function
	GO:0008794	arsenate reductase (glutaredoxin) activity	Catalysis of the reaction: arsenate + reduced glutaredoxin = arsenite + oxidized glutaredoxin. Glutaredoxin functions as the electron donor for arsenate reduction. The electron flow therefore is ( NADPH -> glutathione reductase (EC:1.6.4.2) -> ) glutathione -> glutaredoxin -> arsenate reductase, i.e. glutathione is reduced by glutathione reductase and glutaredoxin is reduced by glutathione.
	GO:0016491	oxidoreductase activity	Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
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.
	GO:0046685	response to arsenic-containing substance	Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an arsenic stimulus from compounds containing arsenic, including arsenates, arsenites, and arsenides.

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