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(-) Description

Title :  REDUCED FORM SELENOMETHIONINE-LABELLED HYDROXYMETHYLBILANE SYNTHASE DETERMINED BY MAD
 
Authors :  J. R. Helliwell, Y. P. Nieh, S. J. Harrop, A. Cassetta
Date :  13 Apr 97  (Deposition) - 15 Oct 97  (Release) - 18 Sep 13  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.40
Chains :  Asym./Biol. Unit :  A
Keywords :  Biosynthesis Of Linear Tetrapyrrole, All Alpha/Beta, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  A. Hadener, P. K. Matzinger, A. R. Battersby, S. Mcsweeney, A. W. Thompson, A. P. Hammersley, S. J. Harrop, A. Cassetta, A. Deacon, W. N. Hunter, Y. P. Nieh, J. Raftery, N. Hunter, J. R. Helliwell
Determination Of The Structure Of Seleno-Methionine-Labelle Hydroxymethylbilane Synthase In Its Active Form By Multi-Wavelength Anomalous Dispersion.
Acta Crystallogr. , Sect. D V. 55 631 1999
PubMed-ID: 10089459  |  Reference-DOI: 10.1107/S0907444998014711

(-) Compounds

Molecule 1 - HYDROXYMETHYLBILANE SYNTHASE
    Chains: A
    EC Number: 2.5.1.61
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Fragment: THREE DOMAINS
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 562
    Other Details: CONTAINS A DIPYRROMETHANE COFACTOR LINKED TO THE RESIDUE CYSTEINE 242
    Synonym: PORPHOBILINOGEN DEAMINASE

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 6)

Asymmetric/Biological Unit (2, 6)
No.NameCountTypeFull Name
1DPM1Ligand/Ion3-[5-{[3-(2-CARBOXYETHYL)-4-(CARBOXYMETHYL)-5-METHYL-1H-PYRROL-2-YL]METHYL}-4-(CARBOXYMETHYL)-1H-PYRROL-3-YL]PROPANOIC ACID
2MSE5Mod. Amino AcidSELENOMETHIONINE

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWARELEU A:15 , SER A:81 , LYS A:83 , ASP A:84 , THR A:127 , SER A:128 , SER A:129 , ARG A:131 , ARG A:132 , LEU A:148 , ARG A:155 , LEU A:169 , ALA A:170 , GLN A:198 , GLY A:199 , CYS A:242 , GLN A:243 , HOH A:351 , HOH A:373 , HOH A:422 , HOH A:445 , HOH A:454BINDING SITE FOR RESIDUE DPM A 314

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1AH5)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1AH5)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1AH5)

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1PORPHOBILINOGEN_DEAMPS00533 Porphobilinogen deaminase cofactor-binding site.HEM3_ECOLI231-247  1A:231-247

(-) Exons   (0, 0)

(no "Exon" information available for 1AH5)

(-) 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:299
 aligned with HEM3_ECOLI | P06983 from UniProtKB/Swiss-Prot  Length:313

    Alignment length:311
                                    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 
           HEM3_ECOLI     3 DNVLRIATRQSPLALWQAHYVKDKLMASHPGLVVELVPMVTRGDVILDTPLAKVGGKGLFVKELEVALLENRADIAVHSMKDVPVEFPQGLGLVTICEREDPRDAFVSNNYDSLDALPAGSIVGTSSLRRQCQLAERRPDLIIRSLRGNVGTRLSKLDNGEYDAIILAVAGLKRLGLESRIRAALPPEISLPAVGQGAVGIECRLDDSRTRELLAALNHHETALRVTAERAMNTRLEGGCQVPIGSYAELIDGEIWLRALVGAPDGSQIIRGERRGAPQDAEQMGISLAEELLNNGAREILAEVYNGDAPA 313
               SCOP domains d1ah5a1 A:3-219 Porphobilinogen deaminase (h            ydroxymethylbilane synthase), N-terminal domain                                                                                                                  d1ah5a2 A:220-313 Porphobilinogen deaminase (hydroxymethylbilane synthase), C-terminal domain  SCOP domains
               CATH domains 1ah5A01 A:3-99,A:200-220 Periplasmic binding             protein-like II                         1ah5A02 A:100-199 Periplasmic binding protein-like II                                               1ah5A01              1ah5A03 A:221-306  [code=3.30.160.40, no name defined]                                ------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeee....hhhhhhhhhhhhhhhhh....eeeee.......------------.....hhhhhhhh.....eeee............eeeeee.......eeeee.............eee...hhhhhhhhhh....eee.....hhhhhhhhh.....eeeeehhhhhh...hhheeee...............eeeee...hhhhhhhhhh..hhhhhhhhhhhhhhh.........eeeeeeee..eeeeeeeee......eeeeeeeeehhh.hhhhhhhhhhhhhh.hhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------PORPHOBILINOGEN_D------------------------------------------------------------------ PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1ah5 A   3 DNVLRIATRQSPLALWQAHYVKDKLmASHPGLVVELVPmVTRGD------------KGLFVKELEVALLENRADIAVHSmKDVPVEFPQGLGLVTICEREDPRDAFVSNNYDSLDALPAGSIVGTSSLRRQCQLAERRPDLIIRSLRGNVGTRLSKLDNGEYDAIILAVAGLKRLGLESRIRAALPPEISLPAVGQGAVGIECRLDDSRTRELLAALNHHETALRVTAERAmNTRLEGGCQVPIGSYAELIDGEIWLRALVGAPDGSQIIRGERRGAPQDAEQmGISLAEELLNNGAREILAEVYNGDAPA 313
                                    12        22     |  32        42   |     -      | 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 
                                                    28-MSE       41-MSE6           59                     82-MSE                                                                                                                                                 234-MSE                                             286-MSE
   Legend:   → Mismatch (orange background)
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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  (2, 2)

Asymmetric/Biological Unit
(-)
Class: Alpha and beta proteins (a+b) (23004)
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (2, 3)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1AH5)

(-) Gene Ontology  (9, 9)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (HEM3_ECOLI | P06983)
molecular function
    GO:0004418    hydroxymethylbilane synthase activity    Catalysis of the reaction: H(2)O + 4 porphobilinogen = hydroxymethylbilane + 4 NH(4)(+).
    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:0006783    heme biosynthetic process    The chemical reactions and pathways resulting in the formation of heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring, from less complex precursors.
    GO:0018160    peptidyl-pyrromethane cofactor linkage    The covalent binding of a pyrromethane (dipyrrin) cofactor to protein via the sulfur atom of cysteine forming dipyrrolylmethanemethyl-L-cysteine.
    GO:0006779    porphyrin-containing compound biosynthetic process    The chemical reactions and pathways resulting in the formation of any member of a large group of derivatives or analogs of porphyrin. Porphyrin consists of a ring of four pyrrole nuclei linked each to the next at their alpha positions through a methine group.
    GO:0006782    protoporphyrinogen IX biosynthetic process    The chemical reactions and pathways resulting in the formation of protoporphyrinogen IX.
    GO:0033014    tetrapyrrole biosynthetic process    The chemical reactions and pathways leading to the formation of tetrapyrroles, natural pigments containing four pyrrole rings joined by one-carbon units linking position 2 of one pyrrole ring to position 5 of the next.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

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 Related Entries

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

UniProtKB/Swiss-Prot
        HEM3_ECOLI | P06983: 1gtk 1pda 1ypn 2ypn

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