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(-) Description

Title :  X-RAY CRYSTALLOGRAPHIC STUDIES OF SEROTONIN N-ACETYLTRANSFERASE CATALYSIS AND INHIBITION
 
Authors :  E. Wolf, J. De Angelis, E. M. Khalil, P. A. Cole, S. K. Burley
Date :  22 Jan 02  (Deposition) - 22 Mar 02  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.40
Chains :  Asym./Biol. Unit :  A
Keywords :  Enzyme-Inhibitor Complex, Bisubstrate Analog, Alternate Conformations, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  E. Wolf, J. De Angelis, E. M. Khalil, P. A. Cole, S. K. Burley
X-Ray Crystallographic Studies Of Serotonin N-Acetyltransferase Catalysis And Inhibition.
J. Mol. Biol. V. 317 215 2002
PubMed-ID: 11902838  |  Reference-DOI: 10.1006/JMBI.2001.5371
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - SEROTONIN N-ACETYLTRANSFERASE
    Chains: A
    EC Number: 2.3.1.87
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PGEX-6P-1
    Expression System Strain: BL21(DE3)PLYSS
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: U29663
    Mutation: YES
    Organism Common: SHEEP
    Organism Scientific: OVIS ARIES
    Organism Taxid: 9940
    Synonym: ARYLALKYLAMINE N-ACETYLTRANSFERASE

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 1)

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1COT1Ligand/IonCOA-S-ACETYL TRYPTAMINE

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREPHE A:56 , SER A:60 , CYS A:63 , PRO A:64 , HIS A:122 , ALA A:123 , LEU A:124 , ALA A:125 , VAL A:126 , ARG A:131 , GLN A:132 , GLN A:133 , GLY A:134 , LYS A:135 , GLY A:136 , SER A:137 , ARG A:154 , MET A:159 , CYS A:160 , GLU A:161 , ALA A:163 , LEU A:164 , PHE A:167 , TYR A:168 , ARG A:170 , VAL A:183 , PHE A:188 , HOH A:933 , HOH A:938BINDING SITE FOR RESIDUE COT A 901

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1GNATPS51186 Gcn5-related N-acetyltransferase (GNAT) domain profile.SNAT_SHEEP35-196  1A:35-195

(-) Exons   (0, 0)

(no "Exon" information available for 1KUY)

(-) 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:166
 aligned with SNAT_SHEEP | Q29495 from UniProtKB/Swiss-Prot  Length:207

    Alignment length:166
                                    39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189      
           SNAT_SHEEP    30 HTLPANEFRCLTPEDAAGVFEIEREAFISVSGNCPLNLDEVQHFLTLCPELSLGWFVEGRLVAFIIGSLWDEERLTQESLALHRPRGHSAHLHALAVHRSFRQQGKGSVLLWRYLHHVGAQPAVRRAVLMCEDALVPFYQRFGFHPAGPCAIVVGSLTFTEMHCSL 195
               SCOP domains d1kuya_ A: Serotonin N-acetyltranferase                                                                                                                                SCOP domains
               CATH domains 1kuyA00 A:30-195  [code=3.40.630.30, no name defined]                                                                                                                  CATH domains
               Pfam domains ------------------------------------------------------Acetyltransf_1-1kuyA01 A:84-174                                                            --------------------- Pfam domains
         Sec.struct. author ......eee..hhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhh...eeeee....eeeeee..ee......hhhhhh......eee..eeee.......hhhhhhhhhhhhhhh......eeeeeehhhhhhhhhh...eeeee..........eeeeee. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----GNAT  PDB: A:35-195 UniProt: 35-196                                                                                                                               PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1kuy A  30 HTLPANEFRCLTPEDAAGVFEIEREAFISVSGNCPLNLDEVQHFLTLCPELSLGWFVEGRLVAFIIGSLWDEERLTQESLALHRPRGHSAHLHALAVHRSFRQQGKGSVLLWRYLHHVGAQPAVRRAVLMCEDALVPFYQRFGFHPAGPCAIVVGSLTFTEMHCSL 195
                                    39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189
   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)

Asymmetric/Biological Unit
(-)
Class: Alpha and beta proteins (a+b) (23004)

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Clan: Acetyltrans (109)

(-) Gene Ontology  (12, 12)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (SNAT_SHEEP | Q29495)
molecular function
    GO:0008080    N-acetyltransferase activity    Catalysis of the transfer of an acetyl group to a nitrogen atom on the acceptor molecule.
    GO:0004059    aralkylamine N-acetyltransferase activity    Catalysis of the reaction: acetyl-CoA + an aralkylamine = CoA + an N-acetylaralkylamine.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    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:0016746    transferase activity, transferring acyl groups    Catalysis of the transfer of an acyl group from one compound (donor) to another (acceptor).
biological process
    GO:0006474    N-terminal protein amino acid acetylation    The acetylation of the N-terminal amino acid of proteins.
    GO:0071320    cellular response to cAMP    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a cAMP (cyclic AMP, adenosine 3',5'-cyclophosphate) stimulus.
    GO:0007623    circadian rhythm    Any biological process in an organism that recurs with a regularity of approximately 24 hours.
    GO:0030187    melatonin biosynthetic process    The chemical reactions and pathways resulting in the formation of melatonin (N-acetyl-5-methoxytryptamine).
    GO:0048511    rhythmic process    Any process pertinent to the generation and maintenance of rhythms in the physiology of an organism.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0048471    perinuclear region of cytoplasm    Cytoplasm situated near, or occurring around, the nucleus.

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  1kuy
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  2.3.1.87
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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        SNAT_SHEEP | Q29495: 1b6b 1cjw 1ib1 1kuv 1kux 1l0c

(-) Related Entries Specified in the PDB File

1b6b MELATONIN BIOSYNTHESIS: THE STRUCTURE OF SEROTONIN N- ACETYLTRANSFERASE AT 2.5 A RESOLUTION SUGGESTS A CATALYTIC MECHANISM
1bo4 CRYSTAL STRUCTURE OF A GCN5-RELATED N-ACETYLTRANSFERASE: SERRATIA MARESCENS AMINOGLYCOSIDE 3-N-ACETYLTRANSFERASE
1cjw SEROTONIN N-ACETYLTRANFERASE COMPLEXED WITH A BISUBSTRATE ANALOG
1kuv
1kux