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Title :  CRYSTAL STRUCTURE OF FORMIMINOTETRAHYDROFOLATE CYCLODEAMINASE (TM1560) FROM THERMOTOGA MARITIMA AT 2.80 A RESOLUTION
 
Authors :  Joint Center For Structural Genomics (Jcsg)
Date :  17 Sep 03  (Deposition) - 30 Sep 03  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.80
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Tm1560, Formiminotetrahydrofolate Cyclodeaminase, Structural Genomics, Jcsg, Psi, Protein Structure Initiative, Joint Center For Structural Genomics, Lyase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  Q. Xu, R. Schwarzenbacher, D. Mcmullan, P. Abdubek, E. Ambing, T. Biorac, J. M. Canaves, H. J. Chiu, X. Dai, A. M. Deacon, M. Didonato, M. A. Elsliger, A. Godzik, C. Grittini, S. K. Grzechnik, E. Hampton, M. Hornsby, L. Jaroszewski, H. E. Klock, E. Koesema, A. Kreusch, P. Kuhn, S. A. Lesley, I. Levin, M. D. Miller, A. Morse, K. Moy, J. Ouyang R. Page, K. Quijano, R. Reyes, A. Robb, E. Sims, G. Spraggon, R. C. Stevens, H. Van Den Bedem, J. Velasquez, J. Vincent, F. Von Delft, X. Wang, B. West, A. White, G. Wolf, O. Zagnitko, K. O. Hodgson, J. Wooley, I. A. Wilson
Crystal Structure Of A Formiminotetrahydrofolate Cyclodeaminase (Tm1560) From Thermotoga Maritima At 2. 80 A Resolution Reveals A New Fold
Proteins V. 58 976 2005
PubMed-ID: 15651027  |  Reference-DOI: 10.1002/PROT.20364

(-) Compounds

Molecule 1 - FORMIMINOTETRAHYDROFOLATE CYCLODEAMINASE
    ChainsA, B
    EC Number4.3.1.4
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    Expression System Vector TypePLASMID
    GeneTM1560
    Organism ScientificTHERMOTOGA MARITIMA
    Organism Taxid2336

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 22)

Asymmetric/Biological Unit (1, 22)
No.NameCountTypeFull Name
1MSE22Mod. Amino AcidSELENOMETHIONINE

(-) Sites  (0, 0)

(no "Site" information available for 1O5H)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1O5H)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1O5H)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1O5H)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1O5H)

(-) Exons   (0, 0)

(no "Exon" information available for 1O5H)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
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Chain A from PDB  Type:PROTEIN  Length:200
 aligned with Q9X1P6_THEMA | Q9X1P6 from UniProtKB/TrEMBL  Length:202

    Alignment length:200
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201
         Q9X1P6_THEMA     2 EVERLSLKEFCDMVAERKPTPGGGAVGSVVGAMACALAEMVANFTRKKKGYEDVEPEMERIVEAMEEARLKLFDLAKKDMEAFEKVMKAYKSSEGELQNALKEAASVPMDVIRVMKDLAHELEKLAEFGNKNLASDTLNAADLCHAVFQVEKVNVLINLKEISDETFRKNMLEELEEQEAQIEGCYQRVKKMLEGIVWSS 201
               SCOP domains d1o5ha_ A: Hypothetical protein TM1560                                                                                                                                                                   SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....hhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1o5h A   2 EVERLSLKEFCDmVAERKPTPGGGAVGSVVGAmACALAEmVANFTRKKKGYEDVEPEmERIVEAmEEARLKLFDLAKKDmEAFEKVmKAYKSSEGELQNALKEAASVPmDVIRVmKDLAHELEKLAEFGNKNLASDTLNAADLCHAVFQVEKVNVLINLKEISDETFRKNmLEELEEQEAQIEGCYQRVKKmLEGIVWSS 201
                                    11  |     21        31  |     41        51       |61    |   71        81      | 91       101       111    |  121       131       141       151       161       171|      181       191 |     201
                                       14-MSE              34-MSE 41-MSE            59-MSE 66-MSE         81-MSE 88-MSE               110-MSE |                                                     172-MSE              193-MSE    
                                                                                                                                            116-MSE                                                                                 

Chain B from PDB  Type:PROTEIN  Length:198
 aligned with Q9X1P6_THEMA | Q9X1P6 from UniProtKB/TrEMBL  Length:202

    Alignment length:198
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191        
         Q9X1P6_THEMA     2 EVERLSLKEFCDMVAERKPTPGGGAVGSVVGAMACALAEMVANFTRKKKGYEDVEPEMERIVEAMEEARLKLFDLAKKDMEAFEKVMKAYKSSEGELQNALKEAASVPMDVIRVMKDLAHELEKLAEFGNKNLASDTLNAADLCHAVFQVEKVNVLINLKEISDETFRKNMLEELEEQEAQIEGCYQRVKKMLEGIVW 199
               SCOP domains d1o5hb_ B: Hypothetical protein TM1560                                                                                                                                                                 SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
           Pfam domains (1) ----FTCD_C-1o5hB01 B:6-180                                                                                                                                                         ------------------- Pfam domains (1)
           Pfam domains (2) ----FTCD_C-1o5hB02 B:6-180                                                                                                                                                         ------------------- Pfam domains (2)
         Sec.struct. author hhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1o5h B   2 EVERLSLKEFCDmVAERKPTPGGGAVGSVVGAmACALAEmVANFTRKKKGYEDVEPEmERIVEAmEEARLKLFDLAKKDmEAFEKVmKAYKSSEGELQNALKEAASVPmDVIRVmKDLAHELEKLAEFGNKNLASDTLNAADLCHAVFQVEKVNVLINLKEISDETFRKNmLEELEEQEAQIEGCYQRVKKmLEGIVW 199
                                    11  |     21        31  |     41        51       |61    |   71        81      | 91       101       111    |  121       131       141       151       161       171|      181       191 |      
                                       14-MSE              34-MSE 41-MSE            59-MSE 66-MSE         81-MSE 88-MSE               110-MSE |                                                     172-MSE              193-MSE  
                                                                                                                                            116-MSE                                                                               

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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, 2)

Asymmetric/Biological Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1O5H)

(-) Pfam Domains  (1, 2)

Asymmetric/Biological Unit

(-) Gene Ontology  (4, 4)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (Q9X1P6_THEMA | Q9X1P6)
molecular function
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    GO:0030412    formimidoyltetrahydrofolate cyclodeaminase activity    Catalysis of the reaction: 5-formimidoyltetrahydrofolate + 2 H(+) = 5,10-methenyltetrahydrofolate + NH(4)(+).
    GO:0016829    lyase activity    Catalysis of the cleavage of C-C, C-O, C-N and other bonds by other means than by hydrolysis or oxidation, or conversely adding a group to a double bond. They differ from other enzymes in that two substrates are involved in one reaction direction, but only one in the other direction. When acting on the single substrate, a molecule is eliminated and this generates either a new double bond or a new ring.
biological process
    GO:0044237    cellular metabolic process    The chemical reactions and pathways by which individual cells transform chemical substances.

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