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(-) Description

Title :  CHICKEN CITRATE SYNTHASE COMPLEX WITH NITROMETHYLDE-COA AND MALATE
 
Authors :  K. C. Usher, S. J. Remington
Date :  19 Jun 97  (Deposition) - 24 Dec 97  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.80
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Keywords :  Oxo-Acid-Lyase, Tricarboxylic Acid Cycle, Allosteric Enzyme (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  B. Schwartz, K. W. Vogel, K. C. Usher, C. Narasimhan, H. M. Miziorko, S. J. Remington, D. G. Drueckhammer
Mechanisms Of Enzyme-Catalyzed Deprotonation Of Acetyl-Coenzyme A
To Be Published
PubMed: search
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CITRATE SYNTHASE
    Cellular Location: INNER MATRIX
    Chains: A
    EC Number: 4.1.3.7
    Organ: HEART
    Organelle: MITOCHONDRIA
    Organism Common: CHICKEN
    Organism Scientific: GALLUS GALLUS
    Organism Taxid: 9031
    Tissue: MUSCLE

 Structural Features

(-) Chains, Units

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

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 2)

Asymmetric Unit (2, 2)
No.NameCountTypeFull Name
1MLT1Ligand/IonMALATE ION
2NMX1Ligand/IonNITROMETHYLDETHIA COENZYME A
Biological Unit 1 (2, 4)
No.NameCountTypeFull Name
1MLT2Ligand/IonMALATE ION
2NMX2Ligand/IonNITROMETHYLDETHIA COENZYME A

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:238 , ASN A:242 , HIS A:274 , HIS A:320 , ARG A:329 , ARG A:401 , ARG A:421 , HOH A:584 , HOH A:586 , NMX A:700BINDING SITE FOR RESIDUE MLT A 702
2AC2SOFTWAREARG A:46 , LEU A:273 , HIS A:274 , ALA A:277 , LEU A:309 , VAL A:314 , VAL A:315 , GLY A:317 , TYR A:318 , GLY A:319 , HIS A:320 , ALA A:321 , ARG A:329 , LYS A:366 , ALA A:367 , LYS A:368 , ASN A:373 , VAL A:374 , ASP A:375 , PHE A:397 , HOH A:539 , HOH A:547 , HOH A:585 , HOH A:603 , HOH A:623 , MLT A:702BINDING SITE FOR RESIDUE NMX A 700
3ACTUNKNOWNHIS A:274 , HIS A:320 , ASP A:375ENZYME ACTIVE SITE.

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1AMZ)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

Asymmetric Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CITRATE_SYNTHASEPS00480 Citrate synthase signature.CISY_CHICK317-329  1A:317-329
Biological Unit 1 (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CITRATE_SYNTHASEPS00480 Citrate synthase signature.CISY_CHICK317-329  2A:317-329

(-) Exons   (0, 0)

(no "Exon" information available for 1AMZ)

(-) 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:435
 aligned with CISY_CHICK | P23007 from UniProtKB/Swiss-Prot  Length:433

    Alignment length:435
                                                                                                                                                                                                                                                                                                                                                                                                                                                                        433    
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432|    
           CISY_CHICK     3 STNLKDVLAALIPKEQARIKTFRQQHGGTALGQITVDMSYGGMRGMKGLVYETSVLDPDEGIRFRGFSIPECQKLLPKGGXGGEPLPEGLFWLLVTGQIPTGAQVSWLSKEWAKRAALPSHVVTMLDNFPTNLHPMSQLSAAITALNSESNFARAYAEGILRTKYWEMVYESAMDLIAKLPCVAAKIYRNLYRAGSSIGAIDSKLDWSHNFTNMLGYTDAQFTELMRLYLTIHSDHEGGNVSAHTSHLVGSALSDPYLSFAAAMNGLAGPLHGLANQEVLGWLAQLQKAXXXAGADASLRDYIWNTLNSGRVVPGYGHAVLRKTDPRYTCQREFALKHLPGDPMFKLVAQLYKIVPNVLLEQGAAANPWPNVDAHSGVLLQYYGMTEMNYYTVLFGVSRALGVLAQLIWSRALGFPLERPKSMSTDGLIAL----   -
               SCOP domains d1amza_ A: Citrate synthase                                                                                                                                                                                                                                                                                                                                                                                                                         SCOP domains
               CATH domains 1amzA01 A:3-276,A:392-423 Citrate Synthase, domain 1                                                                                                                                                                                                                              1amzA02 A:277-391 Cytochrome P450-Terp, domain 2                                                                   1amzA01 A:3-276,A:392-423       -------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhhhhhhhhhhhh.........hhhhh.............eeee...eeee....hhhhhhh...........hhhhhhhhhh.....hhhhhhhhhhhhhh....hhhhhhhhh......hhhhhhhhhhhhhhh.hhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..............hhhhhhhhh....hhhhhhhhhhhhh........hhhhhhhhhhhh...hhhhhhhhhhhh.....hhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhh................hhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhh.........hhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhh............hhhhhhhh... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------CITRATE_SYNTH------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1amz A   3 STNLKDVLASLIPKEQARIKTFRQQHGNTAVGQITVDMSYGGMRGMKGLIYETSVLDPDEGIRFRGFSIPECQKLLPKAGGGEEPLPEGLFWLLVTGQIPTPEQVSWVSKEWAKRAALPSHVVTMLDNFPTNLHPMSQLSAAITALNSESNFARAYAEGINRTKYWEFVYEDAMDLIAKLPCVAAKIYRNLYRAGSSIGAIDSKLDWSHNFTNMLGYTDPQFTELMRLYLTIHSDHEGGNVSAHTSHLVGSALSDPYLSFAAAMNGLAGPLHGLANQEVLLWLSQLQKDLGADASDEKLRDYIWNTLNSGRVVPGYGHAVLRKTDPRYTCQREFALKHLPSDPMFKLVAQLYKIVPNVLLEQGKAKNPWPNVDAHSGVLLQYYGMTEMNYYTVLFGVSRALGVLAQLIWSRALGFPLERPKSMSTAGLEKLSAGG 437
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432
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  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
(-)
Class: All alpha proteins (14657)

(-) CATH Domains  (2, 2)

Asymmetric Unit
(-)
Class: Mainly Alpha (13335)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1AMZ)

(-) Gene Ontology  (9, 9)

Asymmetric Unit(hide GO term definitions)
Chain A   (CISY_CHICK | P23007)
molecular function
    GO:0004108    citrate (Si)-synthase activity    Catalysis of the reaction: acetyl-CoA + H2O + oxaloacetate = citrate + CoA, where the acetyl group is added to the si-face of oxaloacetate; acetyl-CoA thus provides the two carbon atoms of the pro-S carboxymethyl group.
    GO:0036440    citrate synthase activity    Catalysis of the reaction: acetyl-CoA + H2O + oxaloacetate = citrate + CoA.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
    GO:0046912    transferase activity, transferring acyl groups, acyl groups converted into alkyl on transfer    Catalysis of the transfer of an acyl group from one compound (donor) to another (acceptor), with the acyl group being converted into alkyl on transfer.
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:0006101    citrate metabolic process    The chemical reactions and pathways involving citrate, 2-hydroxy-1,2,3-propanetricarboyxlate. Citrate is widely distributed in nature and is an important intermediate in the TCA cycle and the glyoxylate cycle.
    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.
cellular component
    GO:0005759    mitochondrial matrix    The gel-like material, with considerable fine structure, that lies in the matrix space, or lumen, of a mitochondrion. It contains the enzymes of the tricarboxylic acid cycle and, in some organisms, the enzymes concerned with fatty acid oxidation.
    GO:0005739    mitochondrion    A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.

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        CISY_CHICK | P23007: 1al6 1csc 1csh 1csi 1csr 1css 2csc 3csc 4csc 5csc 5cts 6csc 6cts

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