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Title :   X-RAY CRYSTALLOGRAPHIC STRUCTURE OF A Y131F MUTANT OF PSEUDOMONAS AERUGINOSA AZOREDUCTASE IN COMPLEX WITH METHYL RED

Authors :   C. -J. Wang, N. Laurieri, A. Abuhammad, E. Lowe, I. Westwood, A. Ryan, E. Sim

Date :   26 Oct 09 (Deposition) - 12 Jan 10 (Release) - 19 Jan 10 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.10

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

Keywords :   Y131F Azoreductase, Methyl Red, Flavoprotein, Fmn, Nad, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   C. -J. Wang, N. Laurieri, A. Abuhammad, E. Lowe, I. Westwood, A. Ryan, E. Sim
Role Of Tyrosine 131 In The Active Site Of Paazor1, An Azoreductase With Specificity For The Inflammatory Bowel Disease Prodrug Balsalazide
Acta Crystallogr. , Sect. F V. 66 2 2010
PubMed-ID: 20057057 | Reference-DOI: 10.1107/S1744309109044741
(for further references see the PDB file header)

Molecule 1 - FMN-DEPENDENT NADH-AZOREDUCTASE 1
	Chains	:	A, B
	EC Number	:	1.7.-.-
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET28B
	Expression System Strain	:	BL21(DE3) PLYSS
	Expression System Taxid	:	469008
	Expression System Vector Type	:	PLASMID
	Gene	:	PA0785
	Mutation	:	YES
	Organism Scientific	:	PSEUDOMONAS AERUGINOSA
	Organism Taxid	:	208964
	Strain	:	PAO1
	Synonym	:	FMN-DEPENDENT NADH-AZO COMPOUND OXIDOREDUCTASE 1, AZO-DYE REDUCTASE 1

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

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (3, 5)

No.	Name	Count	Type	Full Name
1	FMN	2	Ligand/Ion	FLAVIN MONONUCLEOTIDE
2	GOL	1	Ligand/Ion	GLYCEROL
3	MRE	2	Ligand/Ion	2-(4-DIMETHYLAMINOPHENYL)DIAZENYLBENZOIC ACID

Biological Unit 1 (3, 5)

No.	Name	Count	Type	Full Name
1	FMN	2	Ligand/Ion	FLAVIN MONONUCLEOTIDE
2	GOL	1	Ligand/Ion	GLYCEROL
3	MRE	2	Ligand/Ion	2-(4-DIMETHYLAMINOPHENYL)DIAZENYLBENZOIC ACID

Biological Unit 2 (3, 10)

No.	Name	Count	Type	Full Name
1	FMN	4	Ligand/Ion	FLAVIN MONONUCLEOTIDE
2	GOL	2	Ligand/Ion	GLYCEROL
3	MRE	4	Ligand/Ion	2-(4-DIMETHYLAMINOPHENYL)DIAZENYLBENZOIC ACID

Asymmetric Unit (5, 5)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	SER A:10 , ARG A:12 , SER A:16 , GLN A:17 , SER A:18 , PRO A:96 , MET A:97 , TYR A:98 , ASN A:99 , PHE A:100 , SER A:145 , ARG A:146 , GLY A:147 , GLY A:148 , PHE A:151 , MRE A:214 , HOH A:229 , HOH A:232 , PHE B:60	BINDING SITE FOR RESIDUE FMN A 213
2	AC2	SOFTWARE	ASN A:99 , PHE A:100 , ASN A:157 , FMN A:213 , PHE B:131 , PHE B:173	BINDING SITE FOR RESIDUE MRE A 214
3	AC3	SOFTWARE	PHE A:60 , PHE A:131 , PHE A:173 , HOH A:344 , ASN B:99 , GLY B:148 , HIS B:149 , ASN B:157 , GLU B:188 , FMN B:213	BINDING SITE FOR RESIDUE MRE A 215
4	AC4	SOFTWARE	ARG A:41 , PRO A:47 , LEU A:48 , PRO A:49 , LEU A:77	BINDING SITE FOR RESIDUE GOL A 216
5	AC5	SOFTWARE	VAL A:56 , MRE A:215 , HOH A:344 , SER B:10 , ARG B:12 , SER B:16 , GLN B:17 , SER B:18 , PRO B:96 , MET B:97 , TYR B:98 , ASN B:99 , PHE B:100 , SER B:145 , ARG B:146 , GLY B:147 , GLY B:148 , PHE B:151 , GLU B:187 , HOH B:225 , HOH B:227	BINDING SITE FOR RESIDUE FMN B 213

(no "SS Bond" information available for 3KEG)

(no "Cis Peptide Bond" information available for 3KEG)

(no "SAP(SNP)/Variant" information available for 3KEG)

(no "PROSITE Motif" information available for 3KEG)

(no "Exon" information available for 3KEG)

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:192
 aligned with AZOR1_PSEAE | Q9I5F3 from UniProtKB/Swiss-Prot  Length:212

    Alignment length:210
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211
          AZOR1_PSEAE     2 SRILAVHASPRGERSQSRRLAEVFLAAYREAHPQARVARREVGRVPLPAVTEAFVAAAFHPQPEQRSLAMQADLALSDQLVGELFDSDLLVISTPMYNFSVPSGLKAWIDQIVRLGVTFDFVLDNGVAQYRPLLRGKRALIVTSRGGHGFGPGGENQAMNHADPWLRTALGFIGIDEVTVVAAEGEESGGRSFEDSCDEAEQRLLALARS 211
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .eeeeee.......hhhhhhhhhhhhhhhhhh...eeeeee.........hhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhh..eeeeeee......hhhhhhhhhhhh.....ee..------..ee.....eeeeeee...........hhhhh.hhhhhhhhhhhhh...eeeeee..------------hhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 3keg A   2 SRILAVHASPRGERSQSRRLAEVFLAAYREAHPQARVARREVGRVPLPAVTEAFVAAAFHPQPEQRSLAMQADLALSDQLVGELFDSDLLVISTPMYNFSVPSGLKAWIDQIVRLGVTFDFV------QFRPLLRGKRALIVTSRGGHGFGPGGENQAMNHADPWLRTALGFIGIDEVTVVAAEG------------DEAEQRLLALARS 211
                                    11        21        31        41        51        61        71        81        91       101       111       121 |     131       141       151       161       171       181    |    -       201       211
                                                                                                                                                   123    130                                                     186          199

Chain B from PDB  Type:PROTEIN  Length:206
 aligned with AZOR1_PSEAE | Q9I5F3 from UniProtKB/Swiss-Prot  Length:212

    Alignment length:210
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211
          AZOR1_PSEAE     2 SRILAVHASPRGERSQSRRLAEVFLAAYREAHPQARVARREVGRVPLPAVTEAFVAAAFHPQPEQRSLAMQADLALSDQLVGELFDSDLLVISTPMYNFSVPSGLKAWIDQIVRLGVTFDFVLDNGVAQYRPLLRGKRALIVTSRGGHGFGPGGENQAMNHADPWLRTALGFIGIDEVTVVAAEGEESGGRSFEDSCDEAEQRLLALARS 211
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..eeeee.......hhhhhhhhhhhhhhhhhh....eeeee.........hhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhh..eeeeeee......hhhhhhhhhhhh.....eeeeee..eeeeee.....eeeeeee...........hhhhh.hhhhhhhhhhhh...eeeeeee....----hhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 3keg B   2 SRILAVHASPRGERSQSRRLAEVFLAAYREAHPQARVARREVGRVPLPAVTEAFVAAAFHPQPEQRSLAMQADLALSDQLVGELFDSDLLVISTPMYNFSVPSGLKAWIDQIVRLGVTFDFVLDNGVAQFRPLLRGKRALIVTSRGGHGFGPGGENQAMNHADPWLRTALGFIGIDEVTVVAAEGEE----SFEDSCDEAEQRLLALARS 211
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181      |  - |     201       211
                                                                                                                                                                                                                    188  193

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	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 '\|'

(no "SCOP Domain" information available for 3KEG)

(no "CATH Domain" information available for 3KEG)

(no "Pfam Domain" information available for 3KEG)

Asymmetric Unit(hide GO term definitions)

Chain A,B (AZOR1_PSEAE | Q9I5F3)

molecular function
	GO:0010181	FMN binding	Interacting selectively and non-covalently with flavin mono nucleotide. Flavin mono nucleotide (FMN) is the coenzyme or the prosthetic group of various flavoprotein oxidoreductase enzymes.
	GO:0008752	FMN reductase activity	Catalysis of the reaction: FMNH2 + NAD(P)+ = FMN + NAD(P)H + H+.
	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: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.
	GO:0016652	oxidoreductase activity, acting on NAD(P)H, NAD(P) as acceptor	Catalysis of an oxidation-reduction (redox) reaction in which NADH or NADPH acts as a hydrogen or electron donor and reduces NAD+ or NADP.
	GO:0016661	oxidoreductase activity, acting on other nitrogenous compounds as donors	Catalysis of an oxidation-reduction (redox) reaction in which a nitrogenous group, excluding NH and NH2 groups, acts as a hydrogen or electron donor and reduces a hydrogen or electron acceptor.
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.

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