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(-) Description

Title :  STRUCTURE OF TERNARY COMPLEX OF HHAI METHYLTRANSFERASE MUTANT (T250G) IN COMPLEX WITH DNA AND ADOHCY
 
Authors :  G. Vilkaitis, A. Dong, E. Weinhold, X. Cheng, S. Klimasauskas
Date :  08 Aug 00  (Deposition) - 15 Dec 00  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.26
Chains :  Asym./Biol. Unit :  A,C,D
Keywords :  Adomet-Dependent Methyltransferase Fold Protein-Dna- Cofactor Complex, Transferase/Dna Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  G. Vilkaitis, A. Dong, E. Weinhold, X. Cheng, S. Klimasauskas
Functional Roles Of The Conserved Threonine 250 In The Target Recognition Domain Of Hhai Dna Methyltransferase.
J. Biol. Chem. V. 275 38722 2000
PubMed-ID: 11102456
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - DNA (5'- D(*TP*GP*AP*TP*AP*GP*CP*GP*CP*TP*AP*TP*C)-3')
    ChainsC, D
    EngineeredYES
    Other DetailsCHEMICALLY SYNTHESIZED
    SyntheticYES
 
Molecule 2 - HHAI DNA METHYLTRANSFERASE
    ChainsA
    EC Number2.1.1.73
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    MutationYES
    Organism ScientificHAEMOPHILUS HAEMOLYTICUS
    Organism Taxid726

 Structural Features

(-) Chains, Units

  123
Asymmetric/Biological Unit ACD

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 3)

Asymmetric/Biological Unit (2, 3)
No.NameCountTypeFull Name
1SAH1Ligand/IonS-ADENOSYL-L-HOMOCYSTEINE
2SO42Ligand/IonSULFATE ION

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWARELYS A:193 , ARG A:245 , LYS A:290 , HOH A:462BINDING SITE FOR RESIDUE SO4 A 600
2AC2SOFTWAREPRO A:198 , ASP A:199BINDING SITE FOR RESIDUE SO4 A 601
3AC3SOFTWAREPHE A:18 , ALA A:19 , GLY A:20 , LEU A:21 , GLY A:23 , ASN A:39 , GLU A:40 , TRP A:41 , ASP A:60 , ILE A:61 , GLY A:78 , PRO A:80 , ASN A:304 , SER A:305 , HOH A:332 , HOH A:333 , HOH A:371 , HOH A:374 , HOH A:396BINDING SITE FOR RESIDUE SAH A 328

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (3, 3)

Asymmetric/Biological Unit (3, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1SAM_MT_C5PS51679 C-5 cytosine-specific DNA methylase (Dnmt) domain profile.MTH1_HAEPH12-325  1A:12-325
2C5_MTASE_1PS00094 C-5 cytosine-specific DNA methylases active site.MTH1_HAEPH73-85  1A:73-85
3C5_MTASE_2PS00095 C-5 cytosine-specific DNA methylases C-terminal signature.MTH1_HAEPH300-318  1A:300-318

(-) Exons   (0, 0)

(no "Exon" information available for 1FJX)

(-) 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:327
 aligned with MTH1_HAEPH | P05102 from UniProtKB/Swiss-Prot  Length:327

    Alignment length:327
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       
           MTH1_HAEPH     1 MIEIKDKQLTGLRFIDLFAGLGGFRLALESCGAECVYSNEWDKYAQEVYEMNFGEKPEGDITQVNEKTIPDHDILCAGFPCQAFSISGKQKGFEDSRGTLFFDIARIVREKKPKVVFMENVKNFASHDNGNTLEVVKNTMNELDYSFHAKVLNALDYGIPQKRERIYMICFRNDLNIQNFQFPKPFELNTFVKDLLLPDSEVEHLVIDRKDLVMTNQEIEQTTPKTVRLGIVGKGGQGERIYSTRGIAITLSAYGGGIFAKTGGYLVNGKTRKLHPRECARVMGYPDSYKVHPSTSQAYKQFGNSVVINVLQYIAYNIGSSLNFKPY 327
               SCOP domains d1fjxa_ A: DNA methylase HhaI                                                                                                                                                                                                                                                                                                           SCOP domains
               CATH domains 1fjxA02 A:1-187,A:304-327 Vaccinia Virus protein VP39                                                                                                                                      1fjxA01 A:188-303 DNA Methylase, subunit A, domain 2                                                                1fjxA02                  CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ............eeeee....hhhhhhhhhh..eeeee...hhhhhhhhhhhhh.....hhhhhhhhhh....eeeee............hhhhhhhhhhhhhhhhhhhhhh..eeeeeee.hhhhhhhhhhhhhhhhhhhhh....eeeeee.hhh......eeeeeeee.hhhh..............hhhhhh.hhhhhhhh.......ee.............eeee........eeee....................eeee..eeee.hhhhhhhhh..........hhhhhhhhhhhh.hhhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) -----------SAM_MT_C5  PDB: A:12-325 UniProt: 12-325                                                                                                                                                                                                                                                                                  -- PROSITE (1)
                PROSITE (2) ------------------------------------------------------------------------C5_MTASE_1   ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------C5_MTASE_2         --------- PROSITE (2)
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1fjx A   1 MIEIKDKQLTGLRFIDLFAGLGGFRLALESCGAECVYSNEWDKYAQEVYEMNFGEKPEGDITQVNEKTIPDHDILCAGFPCQAFSISGKQKGFEDSRGTLFFDIARIVREKKPKVVFMENVKNFASHDNGNTLEVVKNTMNELDYSFHAKVLNALDYGIPQKRERIYMICFRNDLNIQNFQFPKPFELNTFVKDLLLPDSEVEHLVIDRKDLVMTNQEIEQTTPKTVRLGIVGKGGQGERIYSTRGIAIGLSAYGGGIFAKTGGYLVNGKTRKLHPRECARVMGYPDSYKVHPSTSQAYKQFGNSVVINVLQYIAYNIGSSLNFKPY 327
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       

Chain C from PDB  Type:DNA  Length:13
                                             
                 1fjx C 401 TGATAGCGCTATC 413
                                   410   

Chain D from PDB  Type:DNA  Length:13
                                             
                 1fjx D 421 TGATAGCGCTATC 433
                                   430   

   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  (1, 1)

Asymmetric/Biological Unit

(-) CATH Domains  (2, 2)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (6, 6)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (MTH1_HAEPH | P05102)
molecular function
    GO:0003886    DNA (cytosine-5-)-methyltransferase activity    Catalysis of the reaction: S-adenosyl-L-methionine + DNA containing cytosine = S-adenosyl-L-homocysteine + DNA containing 5-methylcytosine.
    GO:0008168    methyltransferase activity    Catalysis of the transfer of a methyl group to an acceptor molecule.
    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:0090116    C-5 methylation of cytosine    The covalent transfer of a methyl group to C-5 of cytosine in a DNA molecule.
    GO:0009307    DNA restriction-modification system    A defense process found in many bacteria and archaea that protects the organism from invading foreign DNA by cleaving it with a restriction endonuclease. The organism's own DNA is protected by methylation of a specific nucleotide, which occurs immediately following replication, in the same target site as the restriction enzyme.
    GO:0032259    methylation    The process in which a methyl group is covalently attached to a molecule.

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 Related Entries

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

UniProtKB/Swiss-Prot
        MTH1_HAEPH | P0510210mh 1hmy 1m0e 1mht 1skm 1svu 2c7o 2c7p 2c7q 2c7r 2hmy 2hr1 2i9k 2uyc 2uyh 2uz4 2z6a 2z6q 2z6u 2zcj 3eeo 3mht 4mht 5ciy 5mht 6mht 7mht 8mht 9mht

(-) Related Entries Specified in the PDB File

3mht 3MHT CONTAINS THE WILD TYPE HHAI METHYLTRANSFERASE, THE SAME DNA SEQUENCE USED AND THE SAME COFACTOR ADOHCY