2IWT - JenaLib

Title :   THIOREDOXIN H2 (HVTRXH2) IN A MIXED DISULFIDE COMPLEX WITH THE TARGET PROTEIN BASI

Authors :   K. Maeda, P. Hagglund, C. Finnie, B. Svensson, A. Henriksen

Date :   04 Jul 06 (Deposition) - 15 Nov 06 (Release) - 12 Jul 17 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.30

Chains :   Asym./Biol. Unit : A,B

Keywords :   Protease Inhibitor, Disulfide Reductase, Basi, Amy2, Redox, Thioredoxin, Oxidoreductase, Substrate Recognition, Disulfide Intermediate, Alpha-Amylase Inhibitor, Serine Protease Inhibitor (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   K. Maeda, P. Hagglund, C. Finnie, B. Svensson, A. Henriksen
Structural Basis For Target Protein Recognition By The Protein Disulfide Reductase Thioredoxin.
Structure V. 14 1701 2006
PubMed-ID: 17098195 | Reference-DOI: 10.1016/J.STR.2006.09.012
(for further references see the PDB file header)

Compounds

Molecule 1 - THIOREDOXIN H ISOFORM 2
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET15B
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	469008
	Expression System Variant	:	ROSETTA
	Mutation	:	YES
	Organism Common	:	BARLEY
	Organism Scientific	:	HORDEUM VULGARE
	Organism Taxid	:	4513
	Other Details	:	DISULFIDE LINK BETWEEN MOL A C46 AND MOL B C148
	Synonym	:	THIOREDOXIN H2
	Variant	:	BARKE

Molecule 2 - ALPHA-AMYLASE/SUBTILISIN INHIBITOR
	Chains	:	B
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET11A
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	469008
	Expression System Variant	:	ROSETTA
	Mutation	:	YES
	Organism Common	:	BARLEY
	Organism Scientific	:	HORDEUM VULGARE
	Organism Taxid	:	4513
	Other Details	:	DISULFIDE LINK BETWEEN MOL A C46 AND MOL B C148
	Synonym	:	BARLEY ALFA-AMYLASE SUBTILISIN INHIBITOR, BASI

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 2)

Sites (2, 2)

SS Bonds (2, 2)

Cis Peptide Bonds (3, 3)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (1, 1)

Exons (0, 0)

Sequences/Alignments

Asymmetric/Biological 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:109
 aligned with Q7XZK2_HORVV | Q7XZK2 from UniProtKB/TrEMBL  Length:122

    Alignment length:109
                                    22        32        42        52        62        72        82        92       102       112         
         Q7XZK2_HORVV    13 EVISVHSLEQWTMQIEEANTAKKLVVIDFTASWCGPCRIMAPVFADLAKKFPNAVFLKVDVDELKPIAEQFSVEAMPTFLFMKEGDVKDRVVGAIKEELTAKVGLHAAA 121
               SCOP domains d2iwta_ A: automated matches                                                                                  SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eee..hhhhhhhhhhhhhhh..eeeeeee...hhhhhhhhhhhhhhhhhh..eeeeeee...hhhhhhhh......eeeeee..eeeeeee..hhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------- Transcript
                 2iwt A  13 EVISVHSLEQWTMQIEEANTAKKLVVIDFTASWCGPSRIMAPVFADLAKKFPNAVFLKVDVDELKPIAEQFSVEAMPTFLFMKEGDVKDRVVGAIKEELTAKVGLHAAA 121
                                    22        32        42        52        62        72        82        92       102       112

Chain B from PDB  Type:PROTEIN  Length:182
 aligned with IAAS_HORVU | P07596 from UniProtKB/Swiss-Prot  Length:203

    Alignment length:182
                                    31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201  
           IAAS_HORVU    22 AADPPPVHDTDGHELRADANYYVLSANRAHGGGLTMAPGHGRHCPLFVSQDPNGQHDGFPVRITPYGVAPSDKIIRLSTDVRISFRAYTTCLQSTEWHIDSELAAGRRHVITGPVKDPSPSGRENAFRIEKYSGAEVHEYKLMSCGDWCQDLGVFRDLKGGAWFLGATEPYHVVVFKKAPPA 203
               SCOP domains d2iwtb_ B: automated matches                                                                                                                                                           SCOP domains
               CATH domains 2iwtB00 B:0-181  [code=2.80.10.50, no name defined]                                                                                                                                    CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....................eeeee.hhhhh..eeee.........eeee.........eeeeee...............eeeee............ee...hhhhh..ee...............eeee..........eeee.....eeeeee.......eeeee......eeeee.... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------SOYBEAN_KUNITZ   --------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2iwt B   0 AADPPPVHDTDGHELRADANYYVLSANRAHGGGLTMAPGHGRHCPLFVSQDPNGQHDGFPVRITPYGVAPSDKIIRLSTDVRISFRAYTTCLQSTEWHIDSELAAGRRHVITGPVKDPSPSGRENAFRIEKYSGAEVHEYKLMSSGDWCQDLGVFRDLKGGAWFLGATEPYHVVVFKKAPPA 181
                                     9        19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179

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 (2, 2)

CATH Domains (1, 1)

Pfam Domains (0, 0)

Gene Ontology (11, 11)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (Q7XZK2_HORVV | Q7XZK2)

molecular function
	GO:0015035	protein disulfide oxidoreductase activity	Catalysis of the reaction: a protein with reduced sulfide groups = a protein with oxidized disulfide bonds.
biological process
	GO:0045454	cell redox homeostasis	Any process that maintains the redox environment of a cell or compartment within a cell.
	GO:0006662	glycerol ether metabolic process	The chemical reactions and pathways involving glycerol ethers, any anhydride formed between two organic hydroxy compounds, one of which is glycerol.
	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:0005623	cell	The basic structural and functional unit of all organisms. Includes the plasma membrane and any external encapsulating structures such as the cell wall and cell envelope.

Chain B (IAAS_HORVU | P07596)

molecular function
	GO:0015066	alpha-amylase inhibitor activity	Stops, prevents or reduces the activity of alpha-amylase.
	GO:0004866	endopeptidase inhibitor activity	Stops, prevents or reduces the activity of an endopeptidase, any enzyme that hydrolyzes nonterminal peptide bonds in polypeptides.
	GO:0030414	peptidase inhibitor activity	Stops, prevents or reduces the activity of a peptidase, any enzyme that catalyzes the hydrolysis peptide bonds.
	GO:0004867	serine-type endopeptidase inhibitor activity	Stops, prevents or reduces the activity of serine-type endopeptidases, enzymes that catalyze the hydrolysis of nonterminal peptide bonds in a polypeptide chain; a serine residue (and a histidine residue) are at the active center of the enzyme.
biological process
	GO:0010951	negative regulation of endopeptidase activity	Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins.
	GO:0010466	negative regulation of peptidase activity	Any process that stops or reduces the rate of peptidase activity, the hydrolysis of peptide bonds within proteins.

Visualization

Interactive Views

Asymmetric/Biological Unit
	Complete Structure
		Jena3D(integrated viewing of ligand, site, SAP, PROSITE, SCOP information)
		WebMol \| AstexViewer[tm]@PDBe (Java Applets, require no local installation except for Java; loading may be slow)
		STRAP (Java WebStart application, automatic local installation, requires Java; full application with system access!)
		RasMol (require local installation)
		Molscript (VRML) (requires installation of a VRML viewer; select preferred view via VRML and generate a mono or stereo PDF format file)

	Ligands, Modified Residues, Ions
		FLC	[ RasMol \| Jena3D ]	+environment [ RasMol \| Jena3D ]

	Sites
		AC1	[ RasMol ]	+environment [ RasMol ]
		AC2	[ RasMol ]	+environment [ RasMol ]

	Cis Peptide Bonds
		Cys B:43 - Pro B:44	[ RasMol ]
		Glu B:168 - Pro B:169	[ RasMol ]
		Met A:88 - Pro A:89	[ RasMol ]

Still Images

Databases and Analysis Tools

Databases

Access by PDB/NDB ID
	2iwt
		Family and Domain Information	:	ProDom \| SYSTERS
		General Structural Information	:	GlycoscienceDB \| MMDB \| NDB \| OCA \| PDB \| PDBe \| PDBj \| PDBsum \| PDBWiki \| PQS \| PROTEOPEDIA
		Orientation in Membranes	:	OPM
		Protein Surface	:	SURFACE
		Secondary Structure	:	DSSP (structure derived) \| HSSP (homology derived)
		Structural Genomics	:	GeneCensus
		Structural Neighbours	:	CE \| VAST
		Structure Classification	:	CATH \| Dali \| SCOP
		Validation and Original Data	:	BMRB Data View \| BMRB Restraints Grid \| EDS \| PROCHECK \| RECOORD \| WHAT_CHECK

Access by UniProt ID/Accession number
	IAAS_HORVU \| P07596
		Comparative Protein Structure Models	:	ModBase
		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/SwissProt
	Q7XZK2_HORVV \| Q7XZK2
		Comparative Protein Structure Models	:	ModBase
		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/TrEMBL

Access by Enzyme Classificator (EC Number)
	(no 'Enzyme Classificator' available)
		General Enzyme Information	:	BRENDA \| EC-PDB \| Enzyme \| IntEnz
		Pathway	:	KEGG \| MetaCyc

Access by Disease Identifier (MIM ID)
	(no 'MIM ID' available)
		Disease Information	:	OMIM

Access by GenAge ID
	(no 'GenAge ID' available)
		Age Related Information	:	GenAge

Description