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(-) Description

Authors :  J. Komoto, T. Yamada, Y. Takata, F. Takusagawa
Date :  02 Sep 04  (Deposition) - 07 Dec 04  (Release) - 24 Feb 09  (Revision)
Resolution :  2.00
Chains :  Asym./Biol. Unit :  A
Keywords :  Guanidinoacetate Methyltransferase, Methyltransferase, S- Adenosylhomocysteine, Guanidinoacetate (Keyword Search: [Gene Ontology, PubMed, Web (Google))
Reference :  J. Komoto, T. Yamada, Y. Takata, K. Konishi, H. Ogawa, T. Gomi, M. Fujioka, F. Takusagawa
Catalytic Mechanism Of Guanidinoacetate Methyltransferase: Crystal Structures Of Guanidinoacetate Methyltransferase Ternary Complexes.
Biochemistry V. 43 14385 2004
PubMed-ID: 15533043  |  Reference-DOI: 10.1021/BI0486785
(for further references see the PDB file header)

(-) Compounds

    EC Number2.1.1.2
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPUCGAT9-1
    Expression System StrainJM109
    Expression System Taxid562
    Expression System Vector TypePLASMID
    Organism CommonNORWAY RAT
    Organism ScientificRATTUS NORVEGICUS
    Organism Taxid10116

 Structural Features

(-) Chains, Units

Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (2, 2)
No.NameCountTypeFull Name

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
1AC1SOFTWARETRP A:19 , VAL A:40 , MET A:41 , MET A:49 , GLY A:67 , PHE A:68 , GLY A:69 , MET A:70 , ALA A:71 , ILE A:72 , ALA A:73 , GLU A:89 , CYS A:90 , ASN A:91 , VAL A:94 , GLY A:114 , LEU A:115 , TRP A:116 , GLU A:117 , ASP A:134 , THR A:135 , TYR A:136 , LEU A:138 , HOH A:1002BINDING SITE FOR RESIDUE SAH A 236
2AC2SOFTWAREVAL A:40 , MET A:41 , GLU A:45 , ASP A:134 , THR A:135 , CYS A:168 , ASN A:169 , LEU A:170 , THR A:171 , HOH A:1009 , HOH A:1052BINDING SITE FOR RESIDUE NMG A 237

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
1SAM_RMT2PS51559 Arginine and arginine-like N-methyltransferase domain profile.GAMT_RAT13-236  1A:12-235

(-) Exons   (0, 0)

(no "Exon" information available for 1XCJ)

(-) 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
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Chain A from PDB  Type:PROTEIN  Length:229
 aligned with GAMT_RAT | P10868 from UniProtKB/Swiss-Prot  Length:236

    Alignment length:229
                                    17        27        37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227         
               SCOP domains d1xcja_ A: Guanidinoacetate methyltransferase                                                                                                                                                                                         SCOP domains
               CATH domains 1xcjA00 A:7-235 Vaccinia Virus protein VP39                                                                                                                                                                                           CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----SAM_RMT2  PDB: A:12-235 UniProt: 13-236                                                                                                                                                                                          PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226         

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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/Biological Unit

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (13, 13)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (GAMT_RAT | P10868)
molecular function
    GO:0008757    S-adenosylmethionine-dependent methyltransferase activity    Catalysis of the transfer of a methyl group from S-adenosyl-L-methionine to a substrate.
    GO:0030731    guanidinoacetate N-methyltransferase activity    Catalysis of the reaction: S-adenosyl-L-methionine + guanidinoacetate = S-adenosyl-L-homocysteine + creatine + H(+).
    GO:0008168    methyltransferase activity    Catalysis of the transfer of a methyl group to an acceptor molecule.
    GO:0042803    protein homodimerization activity    Interacting selectively and non-covalently with an identical protein to form a homodimer.
    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.
biological process
    GO:0046498    S-adenosylhomocysteine metabolic process    The chemical reactions and pathways involving S-adenosylhomocysteine; the L-enantiomer is formed from S-adenosylmethionine and is a strong inhibitor of S-adenosylmethionine-mediated methylation reactions. It can be cleaved to form adenosine and homocysteine.
    GO:0046500    S-adenosylmethionine metabolic process    The chemical reactions and pathways involving S-adenosylmethionine, S-(5'-adenosyl)-L-methionine, an important intermediate in one-carbon metabolism.
    GO:0006601    creatine biosynthetic process    The chemical reactions and pathways resulting in the formation of creatine, N-[amino(imino)methyl]-N-methylglycine. Creatine is formed by a process beginning with amidino group transfer from L-arginine to glycine to form guanidinoacetate, followed by methyl group transfer from S-adenosyl-L-methionine to guanidinoacetate; it is then is phosphorylated to form a pool that stores high energy phosphate for the replenishment of ATP during periods of high, or fluctuating energy demand. In animals, most creatine is transported to and used in muscle.
    GO:1990402    embryonic liver development    The process occurring during the embryonic phase whose specific outcome is the progression of the liver over time, from its formation to the mature structure.
    GO:0032259    methylation    The process in which a methyl group is covalently attached to a molecule.
cellular component
    GO:0005575    cellular_component    The part of a cell, extracellular environment or virus in which a gene product is located. A gene product may be located in one or more parts of a cell and its location may be as specific as a particular macromolecular complex, that is, a stable, persistent association of macromolecules that function together.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005634    nucleus    A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.


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 Related Entries

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

        GAMT_RAT | P108681khh 1p1b 1p1c 1xcl

(-) Related Entries Specified in the PDB File