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(-) Description

Title :  CRYSTAL STRUCTURE OF METHENYLTETRAHYDROFOLATE SYNTHETASE FROM MYCOPLASMA PNEUMONIAE AT 2.2 RESOLUTION
 
Authors :  S. Chen, D. H. Shin, R. Pufan, R. Kim, S. H. Kim, Berkeley Structural Genomics Center (Bsgc)
Date :  10 Feb 04  (Deposition) - 10 Aug 04  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Keywords :  5, 10-Methenyltetrahydrofolate Synthetase, Mthfs, 5- Formyltetrahydrofolate Cyclo-Ligase, Structural Genomics, Bsgc Structure Funded By Nih, Protein Structure Initiative, Psi, Berkeley Structural Genomics Center (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  S. Chen, D. H. Shin, R. Pufan, R. Kim, S. H. Kim
Crystal Structure Of Methenyltetrahydrofolate Synthetase From Mycoplasma Pneumoniae (Gi: 13508087) At 2. 2 A Resolution
Proteins V. 56 839 2004
PubMed-ID: 15281135  |  Reference-DOI: 10.1002/PROT.20214
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - 5,10-METHENYLTETRAHYDROFOLATE SYNTHETASE HOMOLOG
    Chains: A, B
    EC Number: 6.3.3.2
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PSKB3
    Expression System Strain: BL21(DE3)PSJS1244
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: MPN348, MP488
    Organism Scientific: MYCOPLASMA PNEUMONIAE
    Organism Taxid: 2104
    Synonym: H91_ORF164

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit : AB
Biological Unit 1 (1x): A 
Biological Unit 2 (1x):  B

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 3)

Asymmetric Unit (1, 3)
No.NameCountTypeFull Name
1SO43Ligand/IonSULFATE ION
Biological Unit 1 (1, 2)
No.NameCountTypeFull Name
1SO42Ligand/IonSULFATE ION
Biological Unit 2 (1, 1)
No.NameCountTypeFull Name
1SO41Ligand/IonSULFATE ION

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREARG A:115 , GLY A:117 , PHE A:118 , GLY A:119 , LYS A:120 , GLY A:121 , TYR A:122 , TYR A:123 , HOH A:514 , HOH A:527BINDING SITE FOR RESIDUE SO4 A 501
2AC2SOFTWAREARG B:115 , PHE B:118 , GLY B:119 , LYS B:120 , GLY B:121 , TYR B:122 , TYR B:123 , ASP B:124BINDING SITE FOR RESIDUE SO4 B 502
3AC3SOFTWAREGLU A:95 , PRO A:96 , ASN A:97 , ASN B:97BINDING SITE FOR RESIDUE SO4 A 503

(-) SS Bonds  (1, 1)

Asymmetric Unit
No.Residues
1A:42 -B:42

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1SBQ)

(-) 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:164
 aligned with MTHFS_MYCPN | P75430 from UniProtKB/Swiss-Prot  Length:164

    Alignment length:164
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160    
          MTHFS_MYCPN     1 MDKNALRKQILQKRMALSTIEKSHLDQKINQKLVAFLTPKPCIKTIALYEPIKNEVTFVDFFFEFLKINQIRAVYPKVISDTEIIFIDQETNTFEPNQIDCFLIPLVGFNKDNYRLGFGKGYYDRYLMQLTRQQPKIGIAYSFQKGDFLADPWDVQLDLIINDE 164
               SCOP domains d1sbqa_ A: 5,10-methenyltetrahydrofolate synthetase homolog MPN348                                                                                                   SCOP domains
               CATH domains 1sbqA00 A:1-164 NagB/RpiA/CoA transferase-like                                                                                                                       CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh......eee...........hhhhhhhhhhh..eeeeeee.....eeee.....eehhhhh.eeeee..ee.....ee....hhhhhhhhhh.....eeeeehhhhh.............eeee.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1sbq A   1 MDKNALRKQILQKRMALSTIEKSHLDQKINQKLVAFLTPKPCIKTIALYEPIKNEVTFVDFFFEFLKINQIRAVYPKVISDTEIIFIDQETNTFEPNQIDCFLIPLVGFNKDNYRLGFGKGYYDRYLMQLTRQQPKIGIAYSFQKGDFLADPWDVQLDLIINDE 164
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160    


Chain B from PDB  Type:PROTEIN  Length:164
 aligned with MTHFS_MYCPN | P75430 from UniProtKB/Swiss-Prot  Length:164

    Alignment length:164
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160    
          MTHFS_MYCPN     1 MDKNALRKQILQKRMALSTIEKSHLDQKINQKLVAFLTPKPCIKTIALYEPIKNEVTFVDFFFEFLKINQIRAVYPKVISDTEIIFIDQETNTFEPNQIDCFLIPLVGFNKDNYRLGFGKGYYDRYLMQLTRQQPKIGIAYSFQKGDFLADPWDVQLDLIINDE 164
               SCOP domains d1sbqb_ B: 5,10-methenyltetrahydrofolate synthetase homolog MPN348                                                                                                   SCOP domains
               CATH domains 1sbqB00 B:1-164 NagB/RpiA/CoA transferase-like                                                                                                                       CATH domains
           Pfam domains (1) --5-FTHF_cyc-lig-1sbqB01 B:3-163                                                                                                                                   - Pfam domains (1)
           Pfam domains (2) --5-FTHF_cyc-lig-1sbqB02 B:3-163                                                                                                                                   - Pfam domains (2)
         Sec.struct. author .hhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhh......eee...........hhhhhhhhhhh..eeeeeee.....eeee.....eehhhhh.eeee...ee.....ee....hhhhhhhh.......eeee.hhhhh.............eee... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1sbq B   1 MDKNALRKQILQKRMALSTIEKSHLDQKINQKLVAFLTPKPCIKTIALYEPIKNEVTFVDFFFEFLKINQIRAVYPKVISDTEIIFIDQETNTFEPNQIDCFLIPLVGFNKDNYRLGFGKGYYDRYLMQLTRQQPKIGIAYSFQKGDFLADPWDVQLDLIINDE 164
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
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  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, 2)

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

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (1, 2)

Asymmetric Unit
(-)
Clan: ISOCOT_Fold (53)

(-) Gene Ontology  (6, 6)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (MTHFS_MYCPN | P75430)
molecular function
    GO:0030272    5-formyltetrahydrofolate cyclo-ligase activity    Catalysis of the reaction: 5-formyltetrahydrofolate + ATP = 5,10-methenyltetrahydrofolate + ADP + H(+) + phosphate.
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0016874    ligase activity    Catalysis of the joining of two substances, or two groups within a single molecule, with the concomitant hydrolysis of the diphosphate bond in ATP or a similar triphosphate.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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        MTHFS_MYCPN | P75430: 1u3f 1u3g

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