1UXG - JenaLib

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Title :   LARGE IMPROVEMENT IN THE THERMAL STABILITY OF A TETRAMERIC MALATE DEHYDROGENASE BY SINGLE POINT MUTATIONS AT THE DIMER-DIMER INTERFACE.

Authors :   A. Bjork, B. Dalhus, D. Mantzilas, V. G. H. Eijsink, R. Sirevag

Date :   25 Feb 04 (Deposition) - 26 Aug 04 (Release) - 15 Apr 15 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.90

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

Keywords :   Oxidoreductase, Tricarboxylic Acid Cycle, Malate Dehydrogenase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   A. Bjork, B. Dalhus, D. Mantzilas, R. Sirevag, V. G. H. Eijsink
Large Improvement In The Thermal Stability Of A Tetrameric Malate Dehydrogenase By Single Point Mutations At The Dimer Dimer Interface.
J. Mol. Biol. V. 341 1215 2004
PubMed-ID: 15321717 | Reference-DOI: 10.1016/J.JMB.2004.06.079

Molecule 1 - MALATE DEHYDROGENASE
	Chains	:	A, B
	EC Number	:	1.1.1.37
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Taxid	:	562
	Organism Scientific	:	CHLOROFLEXUS AURANTIACUS
	Organism Taxid	:	1108

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

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (2, 4)

No.	Name	Count	Type	Full Name
1	FUM	2	Ligand/Ion	FUMARIC ACID
2	NAD	2	Ligand/Ion	NICOTINAMIDE-ADENINE-DINUCLEOTIDE

Biological Unit 1 (2, 8)

No.	Name	Count	Type	Full Name
1	FUM	4	Ligand/Ion	FUMARIC ACID
2	NAD	4	Ligand/Ion	NICOTINAMIDE-ADENINE-DINUCLEOTIDE

Asymmetric Unit (4, 4)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	GLY A:11 , PHE A:12 , VAL A:13 , ASP A:33 , ILE A:34 , VAL A:35 , TYR A:65 , THR A:77 , SER A:78 , GLY A:79 , ALA A:80 , PRO A:81 , ASN A:95 , CYS A:102 , VAL A:118 , ASN A:120 , GLN A:143 , LEU A:147 , HIS A:175 , PRO A:229 , FUM A:1311 , HOH A:2142 , HOH A:2199 , HOH A:2200 , HOH A:2201 , HOH A:2202 , HOH A:2203 , HOH A:2204 , HOH A:2205 , HOH A:2206	BINDING SITE FOR RESIDUE NAD A1310
2	AC2	SOFTWARE	ARG A:82 , ARG A:88 , ASN A:120 , LEU A:147 , ARG A:151 , HIS A:175 , GLY A:213 , SER A:224 , NAD A:1310 , HOH A:2206	BINDING SITE FOR RESIDUE FUM A1311
3	AC3	SOFTWARE	GLY B:9 , GLY B:11 , PHE B:12 , VAL B:13 , ASP B:33 , ILE B:34 , VAL B:35 , TYR B:65 , THR B:77 , SER B:78 , GLY B:79 , ALA B:80 , PRO B:81 , ASN B:95 , CYS B:102 , VAL B:118 , ASN B:120 , GLN B:143 , LEU B:147 , HIS B:175 , PRO B:229 , FUM B:1311 , HOH B:2009 , HOH B:2048 , HOH B:2141 , HOH B:2198 , HOH B:2199 , HOH B:2201 , HOH B:2202 , HOH B:2203 , HOH B:2204	BINDING SITE FOR RESIDUE NAD B1310
4	AC4	SOFTWARE	ARG B:82 , ARG B:88 , LEU B:147 , ARG B:151 , HIS B:175 , GLY B:213 , SER B:224 , NAD B:1310 , HOH B:2129 , HOH B:2204	BINDING SITE FOR RESIDUE FUM B1311

(no "SS Bond" information available for 1UXG)

Asymmetric Unit

No.	Residues
1	Asn A:120	-	Pro A:121
2	Asn B:120	-	Pro B:121

(no "SAP(SNP)/Variant" information available for 1UXG)

(no "PROSITE Motif" information available for 1UXG)

(no "Exon" information available for 1UXG)

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:308
 aligned with MDH_CHLAA | P80040 from UniProtKB/Swiss-Prot  Length:309

    Alignment length:308
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301        
            MDH_CHLAA     2 RKKISIIGAGFVGSTTAHWLAAKELGDIVLLDFVEGVPQGKALDLYEASPIEGFDVRVTGTNNYADTANSDVIVVTSGAPRKPGMSREDLIKVNADITRACISQAAPLSPNAVIIMVNNPLDAMTYLAAEVSGFPKERVIGQAGVLDAARYRTFIAMEAGVSVEDVQAMLMGGHGDEMVPLPRFSTISGIPVSEFIAPDRLAQIVERTRKGGGEIVNLLKTGSAYYAPAAATAQMVEAVLKDKKRVMPVAAYLTGQYGLNDIYFGVPVILGAGGVEKILELPLNEEEMALLNASAKAVRATLDTLKSL 309
               SCOP domains d1uxga1 A:2-143 Malate dehydrogenase                                                                                                          d1uxga2 A:144-307 Malate dehydrogenase                                                                                                                              -- SCOP domains
               CATH domains 1uxgA01 A:2-144 NAD(P)-binding Rossmann-like Domain                                                                                            1uxgA02 A:145-305 L-2-Hydroxyisocaproate Dehydrogenase, subunit A, domain 2                                                                                      ---- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeee..hhhhhhhhhhhhhhh..eeeee....hhhhhhhhhhhhhhhhhh....eeee.hhhhhh...eeee..........hhhhhhhhhhhhhhhhhhhhhhhh...eeee...hhhhhhhhhhhhhh.hhh.eee.hhhhhhhhhhhhhhhhhh.hhh.eeeeee.......eeeeeeeee..ee.hhh.hhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhh...eeeeeeeeee.hhh.eeeeeeeeeeee..eeeee.....hhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1uxg A   2 RKKISIIGAGFVGSTTAHWLAAKELGDIVLLDIVEGVPQGKALDLYEASPIEGFDVRVTGTNNYADTANSDVIVVTSGAPRKPGMSREDLIKVNADITRACISQAAPLSPNAVIIMVNNPLDAMTYLAAEVSGFPKERVIGQAGVLDAARYRTFIAMEAGVSVEDVQAMLMGGHGDEMVPLPRFSTISGIPVSEFIAPDRLAQIVERTRKGGGEIVNLLKTGSAYYAPAAATAQMVEAVLKDKKRVMPVAAYLTGQYGLNDIYFGVPVILGAGGVEKILELPLNEEEMALLNASAKAVRATLDTLKSL 309
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301

Chain B from PDB  Type:PROTEIN  Length:308
 aligned with MDH_CHLAA | P80040 from UniProtKB/Swiss-Prot  Length:309

    Alignment length:308
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301        
            MDH_CHLAA     2 RKKISIIGAGFVGSTTAHWLAAKELGDIVLLDFVEGVPQGKALDLYEASPIEGFDVRVTGTNNYADTANSDVIVVTSGAPRKPGMSREDLIKVNADITRACISQAAPLSPNAVIIMVNNPLDAMTYLAAEVSGFPKERVIGQAGVLDAARYRTFIAMEAGVSVEDVQAMLMGGHGDEMVPLPRFSTISGIPVSEFIAPDRLAQIVERTRKGGGEIVNLLKTGSAYYAPAAATAQMVEAVLKDKKRVMPVAAYLTGQYGLNDIYFGVPVILGAGGVEKILELPLNEEEMALLNASAKAVRATLDTLKSL 309
               SCOP domains d1uxgb1 B:2-143 Malate dehydrogenase                                                                                                          d1uxgb2 B:144-307 Malate dehydrogenase                                                                                                                              -- SCOP domains
               CATH domains 1uxgB01 B:2-144 NAD(P)-binding Rossmann-like Domain                                                                                            1uxgB02 B:145-305 L-2-Hydroxyisocaproate Dehydrogenase, subunit A, domain 2                                                                                      ---- CATH domains
           Pfam domains (1) -Ldh_1_N-1uxgB03 B:3-143                                                                                                                      -Ldh_1_C-1uxgB01 B:145-309                                                                                                                                             Pfam domains (1)
           Pfam domains (2) -Ldh_1_N-1uxgB04 B:3-143                                                                                                                      -Ldh_1_C-1uxgB02 B:145-309                                                                                                                                             Pfam domains (2)
         Sec.struct. author ..eeeee..hhhhhhhhhhhhhh...eeeee....hhhhhhhhhhhhhhhhhh....eeee.hhhhhh...eeee..........hhhhhhhhhhhhhhhhhhhhhhhh...eeee...hhhhhhhhhhhhhh.hhh.eee.hhhhhhhhhhhhhhhhhh.hhh.eeeeee.......eeeeeeeee..ee.hhh.hhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhh...eeeeeeeeee.hhh.eeeeeeeeeeee..eeeee.....hhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1uxg B   2 RKKISIIGAGFVGSTTAHWLAAKELGDIVLLDIVEGVPQGKALDLYEASPIEGFDVRVTGTNNYADTANSDVIVVTSGAPRKPGMSREDLIKVNADITRACISQAAPLSPNAVIIMVNNPLDAMTYLAAEVSGFPKERVIGQAGVLDAARYRTFIAMEAGVSVEDVQAMLMGGHGDEMVPLPRFSTISGIPVSEFIAPDRLAQIVERTRKGGGEIVNLLKTGSAYYAPAAATAQMVEAVLKDKKRVMPVAAYLTGQYGLNDIYFGVPVILGAGGVEKILELPLNEEEMALLNASAKAVRATLDTLKSL 309
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301

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 '\|'

Asymmetric Unit

Clans(

)

Families(

)

Organisms( (-)

)

Clan: LDH_C (56)

Family: Ldh_1_C (51)

Chloroflexus aurantiacus (strain ATCC 29366 / DSM 635 / J-10-fl) (6)

1a	Ldh_1_C-1uxgB01	B:145-309
1b	Ldh_1_C-1uxgB02	B:145-309

Clan: NADP_Rossmann (1239)

Family: Ldh_1_N (51)

Chloroflexus aurantiacus (strain ATCC 29366 / DSM 635 / J-10-fl) (6)

2a	Ldh_1_N-1uxgB03	B:3-143
2b	Ldh_1_N-1uxgB04	B:3-143

Asymmetric Unit(hide GO term definitions)

Chain A,B (MDH_CHLAA | P80040)

molecular function
	GO:0030060	L-malate dehydrogenase activity	Catalysis of the reaction: (S)-malate + NAD+ = oxaloacetate + NADH + H+.
	GO:0003824	catalytic activity	Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
	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:0016616	oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor	Catalysis of an oxidation-reduction (redox) reaction in which a CH-OH group acts as a hydrogen or electron donor and reduces NAD+ or NADP.
biological process
	GO:0005975	carbohydrate metabolic process	The chemical reactions and pathways involving carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y. Includes the formation of carbohydrate derivatives by the addition of a carbohydrate residue to another molecule.
	GO:0019752	carboxylic acid metabolic process	The chemical reactions and pathways involving carboxylic acids, any organic acid containing one or more carboxyl (COOH) groups or anions (COO-).
	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:0006099	tricarboxylic acid cycle	A nearly universal metabolic pathway in which the acetyl group of acetyl coenzyme A is effectively oxidized to two CO2 and four pairs of electrons are transferred to coenzymes. The acetyl group combines with oxaloacetate to form citrate, which undergoes successive transformations to isocitrate, 2-oxoglutarate, succinyl-CoA, succinate, fumarate, malate, and oxaloacetate again, thus completing the cycle. In eukaryotes the tricarboxylic acid is confined to the mitochondria. See also glyoxylate cycle.

Asymmetric Unit
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	Ligands, Modified Residues, Ions
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	Cis Peptide Bonds
		Asn A:120 - Pro A:121	[ RasMol ]
		Asn B:120 - Pro B:121	[ RasMol ]

Biological Unit
	Complete Structure
		Biological Unit 1	[ Jena3D ]

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	1uxg
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	1.1.1.37
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UniProtKB/Swiss-Prot
	MDH_CHLAA \| P80040	:	1guy 1ur5 1uxh 1uxi 1uxj 1uxk 4cl3

1guy	STRUCTURAL BASIS FOR THERMOPHILIC PROTEIN STABILITY: STRUCTURES OF THERMOPHILIC AND MESOPHILIC MALATE DEHYDROGENASES
1ur5	STABILIZATION OF A TETRAMERIC MALATE DEHYDROGENASE BY INTRODUCTION OF A DISULFIDE BRIDGE AT THE DIMER-DIMER INTERFACE
1uxh	STRUCTURAL BASIS FOR THERMOPHILIC PROTEIN STABILITY: STRUCTURES OF THERMOPHILIC AND MESOPHILIC MALATE DEHYDROGENASES
1uxi	STRUCTURAL BASIS FOR THERMOPHILIC PROTEIN STABILITY: STRUCTURES OF THERMOPHILIC AND MESOPHILIC MALATE DEHYDROGENASES
1uxj	STRUCTURAL BASIS FOR THERMOPHILIC PROTEIN STABILITY: STRUCTURES OF THERMOPHILIC AND MESOPHILIC MALATE DEHYDROGENASES
1uxk	STRUCTURAL BASIS FOR THERMOPHILIC PROTEIN STABILITY: STRUCTURES OF THERMOPHILIC AND MESOPHILIC MALATE DEHYDROGENASES

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 4)

Sites (4, 4)

SS Bonds (0, 0)

Cis Peptide Bonds (2, 2)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (0, 0)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (2, 4)

CATH Domains (2, 4)

Pfam Domains (2, 4)

Gene Ontology (8, 8)

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