Show PDB file:   
         Plain Text   HTML   (compressed file size)
QuickSearch:   
by PDB,NDB,UniProt,PROSITE Code or Search Term(s)  
(-)Asymmetric Unit
(-)Asym. Unit - sites
(-)Biological Unit 1
(-)Biol. Unit 1 - sites
collapse expand < >
Image Asymmetric Unit
Asymmetric Unit  (Jmol Viewer)
Image Asym. Unit - sites
Asym. Unit - sites  (Jmol Viewer)
Image Biological Unit 1
Biological Unit 1  (Jmol Viewer)
Image Biol. Unit 1 - sites
Biol. Unit 1 - sites  (Jmol Viewer)

(-) Description

Title :  ESCHERICHIA COLI METHYLENETETRAHYDROFOLATE REDUCTASE (REDUCED) COMPLEXED WITH NADH, PH 7.25
 
Authors :  R. Pejchal, R. Sargeant, M. L. Ludwig
Date :  17 May 05  (Deposition) - 09 Aug 05  (Release) - 06 Nov 13  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.95
Chains :  Asym. Unit :  A,B,C
Biol. Unit 1:  A (1x),B (2x),C (1x)
Keywords :  Tim Barrel, Flavin, Reductase, Nadh, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  R. Pejchal, R. Sargeant, M. L. Ludwig
Structures Of Nadh And Ch(3)-H(4)Folate Complexes Of Escherichia Coli Methylenetetrahydrofolate Reductase Reveal A Spartan Strategy For A Ping-Pong Reaction
Biochemistry V. 44 11447 2005
PubMed-ID: 16114881  |  Reference-DOI: 10.1021/BI050533Q

(-) Compounds

Molecule 1 - 5,10-METHYLENETETRAHYDROFOLATE REDUCTASE
    Chains: A, B, C
    EC Number: 1.7.99.5
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET23C
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: METF
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 562

 Structural Features

(-) Chains, Units

  123
Asymmetric Unit : ABC
Biological Unit 1 (2x): A (1x)B (2x)C (1x)

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 10)

Asymmetric Unit (3, 10)
No.NameCountTypeFull Name
1FAD3Ligand/IonFLAVIN-ADENINE DINUCLEOTIDE
2NAI3Ligand/Ion1,4-DIHYDRONICOTINAMIDE ADENINE DINUCLEOTIDE
3SO44Ligand/IonSULFATE ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1FAD-1Ligand/IonFLAVIN-ADENINE DINUCLEOTIDE
2NAI-1Ligand/Ion1,4-DIHYDRONICOTINAMIDE ADENINE DINUCLEOTIDE
3SO4-1Ligand/IonSULFATE ION

(-) Sites  (10, 10)

Asymmetric Unit (10, 10)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREARG A:230 , PRO A:232 , ALA A:233 , TRP A:234BINDING SITE FOR RESIDUE SO4 A 899
02AC2SOFTWARESER A:44 , ARG A:279 , ALA A:280 , GLU A:281BINDING SITE FOR RESIDUE SO4 A 900
03AC3SOFTWAREARG B:279 , ALA B:280 , GLU B:281 , HOH B:562BINDING SITE FOR RESIDUE SO4 B 901
04AC4SOFTWAREARG C:279 , ALA C:280 , GLU C:281 , HOH C:412BINDING SITE FOR RESIDUE SO4 C 902
05AC5SOFTWARETHR A:59 , TYR A:60 , HIS A:88 , THR A:90 , LEU A:117 , ARG A:118 , GLY A:119 , TYR A:131 , ALA A:132 , ALA A:150 , TYR A:152 , HIS A:156 , GLU A:158 , ALA A:159 , ASP A:165 , ASN A:168 , ARG A:171 , LYS A:172 , ILE A:181 , TYR A:275 , HOH A:557 , NAI A:895BINDING SITE FOR RESIDUE FAD A 395
06AC6SOFTWARETHR B:59 , TYR B:60 , ALA B:62 , HIS B:88 , THR B:90 , LEU B:117 , ARG B:118 , GLY B:119 , ASP B:120 , TYR B:131 , ALA B:132 , ALA B:150 , TYR B:152 , HIS B:156 , GLU B:158 , ALA B:159 , ASP B:165 , ASN B:168 , ARG B:171 , LYS B:172 , TYR B:275 , HOH B:440 , HOH B:468 , HOH B:486 , HOH B:528 , HOH B:660 , HOH B:716 , NAI B:896BINDING SITE FOR RESIDUE FAD B 396
07AC7SOFTWARETHR C:59 , TYR C:60 , HIS C:88 , LEU C:117 , ARG C:118 , GLY C:119 , ASP C:120 , TYR C:131 , ALA C:132 , ALA C:150 , TYR C:152 , HIS C:156 , GLU C:158 , ALA C:159 , ASP C:165 , ASN C:168 , ARG C:171 , LYS C:172 , TYR C:275 , HOH C:401 , HOH C:403 , HOH C:432 , HOH C:584 , HOH C:597 , HOH C:604 , HOH C:644 , NAI C:897BINDING SITE FOR RESIDUE FAD C 397
08AC8SOFTWAREGLU A:28 , PHE A:30 , THR A:59 , GLN A:183 , PHE A:223 , TYR A:275 , LEU A:277 , FAD A:395 , HOH A:704BINDING SITE FOR RESIDUE NAI A 895
09AC9SOFTWAREGLU B:28 , PHE B:30 , THR B:59 , GLY B:61 , GLN B:183 , PHE B:184 , PHE B:223 , TYR B:275 , LEU B:277 , FAD B:396 , HOH B:596 , HOH B:693BINDING SITE FOR RESIDUE NAI B 896
10BC1SOFTWAREGLU C:28 , PHE C:30 , THR C:59 , ASP C:120 , GLN C:183 , PHE C:184 , PHE C:223 , TYR C:275 , FAD C:397 , HOH C:517 , HOH C:624 , HOH C:698BINDING SITE FOR RESIDUE NAI C 897

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1ZPT)

(-) 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:271
 aligned with METF_ECOLI | P0AEZ1 from UniProtKB/Swiss-Prot  Length:296

    Alignment length:290
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294
           METF_ECOLI     5 HASQRDALNQSLAEVQGQINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPPGSGKPEMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRP 294
               SCOP domains d1zpta_ A: Methylenetetrahydrofolate reductase                                                                                                                                                                                                                                                     SCOP domains
               CATH domains 1zptA00 A:5-294  [code=3.20.20.220, no name defined]                                                                                                                                                                                                                                               CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........hhhhhh......eeeee.......hhhhhhhhhhhhhh....eeee..---------......hh.hhh...eeeee........hhhhhhh.hhhhh..eeee...----------.hhhhhhhhh......eeeeee.........hhhhhhhhhhhhhhh.eeeeee....hhhhhhhhhhhhhh......ee.ee....hhhhhhhhhhhhh...hhhhhhhhh....hhhhhhhhhhhhhhhhhhhhh......eeee......hhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1zpt A   5 HASQRDALNQSLAEVQGQINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTY---------THSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRG----------MYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRP 294
                                    14        24        34        44        54     |   -     |  74        84        94       104       114    |    -     | 134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294
                                                                                  60        70                                              119        130                                                                                                                                                                    


Chain A from PDB  Type:PROTEIN  Length:271
 aligned with METF_SHIFL | P0AEZ2 from UniProtKB/Swiss-Prot  Length:296

    Alignment length:290
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294
           METF_SHIFL     5 HASQRDALNQSLAEVQGQINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPPGSGKPEMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRP 294
               SCOP domains d1zpta_ A: Methylenetetrahydrofolate reductase                                                                                                                                                                                                                                                     SCOP domains
               CATH domains 1zptA00 A:5-294  [code=3.20.20.220, no name defined]                                                                                                                                                                                                                                               CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........hhhhhh......eeeee.......hhhhhhhhhhhhhh....eeee..---------......hh.hhh...eeeee........hhhhhhh.hhhhh..eeee...----------.hhhhhhhhh......eeeeee.........hhhhhhhhhhhhhhh.eeeeee....hhhhhhhhhhhhhh......ee.ee....hhhhhhhhhhhhh...hhhhhhhhh....hhhhhhhhhhhhhhhhhhhhh......eeee......hhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1zpt A   5 HASQRDALNQSLAEVQGQINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTY---------THSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRG----------MYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRP 294
                                    14        24        34        44        54     |   -     |  74        84        94       104       114    |    -     | 134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294
                                                                                  60        70                                              119        130                                                                                                                                                                    


Chain B from PDB  Type:PROTEIN  Length:285
 aligned with METF_ECOLI | P0AEZ1 from UniProtKB/Swiss-Prot  Length:296

    Alignment length:292
                                    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  
           METF_ECOLI     3 FFHASQRDALNQSLAEVQGQINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPPGSGKPEMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRP 294
               SCOP domains d1zptb_ B: Methylenetetrahydrofolate reductase                                                                                                                                                                                                                                                       SCOP domains
               CATH domains 1zptB00 B:3-294  [code=3.20.20.220, no name defined]                                                                                                                                                                                                                                                 CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......hhhhhhhhhhh....eeeeee......hhhhhhhhhhhhhhh....eeee.............hhhhhh.hhh...eeeeee....hhhhhhhhh.hhh.....eeeee....-------..hhhhhhhhhhhhh..eeeeee.........hhhhhhhhhhhhhhh...eeee....hhhhhhhhhhhhhhh.....ee.ee....................hhhhhhhhh.......hhhhhhhhhhhhhhhhhhhh...eeeee....hhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1zpt B   3 FFHASQRDALNQSLAEVQGQINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDL-------EMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRP 294
                                    12        22        32        42        52        62        72        82        92       102       112        |-      |132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292  
                                                                                                                                                121     129                                                                                                                                                                     


Chain B from PDB  Type:PROTEIN  Length:285
 aligned with METF_SHIFL | P0AEZ2 from UniProtKB/Swiss-Prot  Length:296

    Alignment length:292
                                    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  
           METF_SHIFL     3 FFHASQRDALNQSLAEVQGQINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPPGSGKPEMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRP 294
               SCOP domains d1zptb_ B: Methylenetetrahydrofolate reductase                                                                                                                                                                                                                                                       SCOP domains
               CATH domains 1zptB00 B:3-294  [code=3.20.20.220, no name defined]                                                                                                                                                                                                                                                 CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......hhhhhhhhhhh....eeeeee......hhhhhhhhhhhhhhh....eeee.............hhhhhh.hhh...eeeeee....hhhhhhhhh.hhh.....eeeee....-------..hhhhhhhhhhhhh..eeeeee.........hhhhhhhhhhhhhhh...eeee....hhhhhhhhhhhhhhh.....ee.ee....................hhhhhhhhh.......hhhhhhhhhhhhhhhhhhhh...eeeee....hhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1zpt B   3 FFHASQRDALNQSLAEVQGQINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDL-------EMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRP 294
                                    12        22        32        42        52        62        72        82        92       102       112        |-      |132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292  
                                                                                                                                                121     129                                                                                                                                                                     


Chain C from PDB  Type:PROTEIN  Length:265
 aligned with METF_ECOLI | P0AEZ1 from UniProtKB/Swiss-Prot  Length:296

    Alignment length:273
                                    31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291   
           METF_ECOLI    22 QINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPPGSGKPEMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRP 294
               SCOP domains d1zptc_ C: Methylenetetrahydrofolate reductase                                                                                                                                                                                                                                    SCOP domains
               CATH domains 1zptC00 C:22-294  [code=3.20.20.220, no name defined]                                                                                                                                                                                                                             CATH domains
           Pfam domains (1) MTHFR-1zptC01 C:22-291                                                                                                                                                                                                                                                        --- Pfam domains (1)
           Pfam domains (2) MTHFR-1zptC02 C:22-291                                                                                                                                                                                                                                                        --- Pfam domains (2)
           Pfam domains (3) MTHFR-1zptC03 C:22-291                                                                                                                                                                                                                                                        --- Pfam domains (3)
         Sec.struct. author ..eeeeee......hhhhhhhhhhhhhhh.....eee......hhhhhhhhhh.hhhhhhh..eeeee.....hhhhhhhhhh.hhh....eeee.....--------.hhhhhhhhhhhhh..eeeeee.........hhhhhhhhhhhhhhhh..eeee....hhhhhh.hhhhhhhh....eee.ee....hhhhhh.hhhhh....hhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhh...eeeee......hhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1zpt C  22 QINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDL--------MYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRP 294
                                    31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291   
                                                                                                                             121      130                                                                                                                                                                    


Chain C from PDB  Type:PROTEIN  Length:265
 aligned with METF_SHIFL | P0AEZ2 from UniProtKB/Swiss-Prot  Length:296

    Alignment length:273
                                    31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291   
           METF_SHIFL    22 QINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPPGSGKPEMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRP 294
               SCOP domains d1zptc_ C: Methylenetetrahydrofolate reductase                                                                                                                                                                                                                                    SCOP domains
               CATH domains 1zptC00 C:22-294  [code=3.20.20.220, no name defined]                                                                                                                                                                                                                             CATH domains
           Pfam domains (1) MTHFR-1zptC01 C:22-291                                                                                                                                                                                                                                                        --- Pfam domains (1)
           Pfam domains (2) MTHFR-1zptC02 C:22-291                                                                                                                                                                                                                                                        --- Pfam domains (2)
           Pfam domains (3) MTHFR-1zptC03 C:22-291                                                                                                                                                                                                                                                        --- Pfam domains (3)
         Sec.struct. author ..eeeeee......hhhhhhhhhhhhhhh.....eee......hhhhhhhhhh.hhhhhhh..eeeee.....hhhhhhhhhh.hhh....eeee.....--------.hhhhhhhhhhhhh..eeeeee.........hhhhhhhhhhhhhhhh..eeee....hhhhhh.hhhhhhhh....eee.ee....hhhhhh.hhhhh....hhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhh...eeeee......hhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1zpt C  22 QINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDL--------MYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRP 294
                                    31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291   
                                                                                                                             121      130
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  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, 3)

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

(-) CATH Domains  (1, 3)

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

(-) Pfam Domains  (1, 3)

Asymmetric Unit
(-)
Clan: FAD_oxidored (7)

(-) Gene Ontology  (12, 20)

Asymmetric Unit(hide GO term definitions)
Chain A,B,C   (METF_SHIFL | P0AEZ2)
molecular function
    GO:0004489    methylenetetrahydrofolate reductase (NAD(P)H) activity    Catalysis of the reaction: 5-methyltetrahydrofolate + NAD(P)+ = 5,10-methylenetetrahydrofolate + NAD(P)H + H+.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
biological process
    GO:0008652    cellular amino acid biosynthetic process    The chemical reactions and pathways resulting in the formation of amino acids, organic acids containing one or more amino substituents.
    GO:0009086    methionine biosynthetic process    The chemical reactions and pathways resulting in the formation of methionine (2-amino-4-(methylthio)butanoic acid), a sulfur-containing, essential amino acid found in peptide linkage in proteins.
    GO:0006555    methionine metabolic process    The chemical reactions and pathways involving methionine (2-amino-4-(methylthio)butanoic acid), a sulfur-containing, essential amino acid found in peptide linkage in proteins.
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0035999    tetrahydrofolate interconversion    The chemical reactions and pathways by which one-carbon (C1) units are transferred between tetrahydrofolate molecules, to synthesise other tetrahydrofolate molecules.
cellular component
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

Chain A,B,C   (METF_ECOLI | P0AEZ1)
molecular function
    GO:0071949    FAD binding    Interacting selectively and non-covalently with the oxidized form, FAD, of flavin-adenine dinucleotide, the coenzyme or the prosthetic group of various flavoprotein oxidoreductase enzymes.
    GO:0004489    methylenetetrahydrofolate reductase (NAD(P)H) activity    Catalysis of the reaction: 5-methyltetrahydrofolate + NAD(P)+ = 5,10-methylenetetrahydrofolate + NAD(P)H + H+.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
biological process
    GO:0008652    cellular amino acid biosynthetic process    The chemical reactions and pathways resulting in the formation of amino acids, organic acids containing one or more amino substituents.
    GO:0009086    methionine biosynthetic process    The chemical reactions and pathways resulting in the formation of methionine (2-amino-4-(methylthio)butanoic acid), a sulfur-containing, essential amino acid found in peptide linkage in proteins.
    GO:0006555    methionine metabolic process    The chemical reactions and pathways involving methionine (2-amino-4-(methylthio)butanoic acid), a sulfur-containing, essential amino acid found in peptide linkage in proteins.
    GO:0006730    one-carbon metabolic process    The chemical reactions and pathways involving the transfer of one-carbon units in various oxidation states.
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0051289    protein homotetramerization    The formation of a protein homotetramer, a macromolecular structure consisting of four noncovalently associated identical subunits.
    GO:0046654    tetrahydrofolate biosynthetic process    The chemical reactions and pathways resulting in the formation of tetrahydrofolate, 5,6,7,8-tetrahydrofolic acid, a folate derivative bearing additional hydrogens on the pterin group.
    GO:0035999    tetrahydrofolate interconversion    The chemical reactions and pathways by which one-carbon (C1) units are transferred between tetrahydrofolate molecules, to synthesise other tetrahydrofolate molecules.
cellular component
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

 Visualization

(-) Interactive Views

Asymmetric Unit
  Complete Structure
    Jena3D(integrated viewing of ligand, site, SAP, PROSITE, SCOP information)
    WebMol | AstexViewer[tm]@PDBe
(Java Applets, require no local installation except for Java; loading may be slow)
    STRAP
(Java WebStart application, automatic local installation, requires Java; full application with system access!)
    RasMol
(require local installation)
    Molscript (VRML)
(requires installation of a VRML viewer; select preferred view via VRML and generate a mono or stereo PDF format file)
 
  Ligands, Modified Residues, Ions
    FAD  [ RasMol | Jena3D ]  +environment [ RasMol | Jena3D ]
    NAI  [ RasMol | Jena3D ]  +environment [ RasMol | Jena3D ]
    SO4  [ RasMol | Jena3D ]  +environment [ RasMol | Jena3D ]
 
  Sites
    AC1  [ RasMol ]  +environment [ RasMol ]
    AC2  [ RasMol ]  +environment [ RasMol ]
    AC3  [ RasMol ]  +environment [ RasMol ]
    AC4  [ RasMol ]  +environment [ RasMol ]
    AC5  [ RasMol ]  +environment [ RasMol ]
    AC6  [ RasMol ]  +environment [ RasMol ]
    AC7  [ RasMol ]  +environment [ RasMol ]
    AC8  [ RasMol ]  +environment [ RasMol ]
    AC9  [ RasMol ]  +environment [ RasMol ]
    BC1  [ RasMol ]  +environment [ RasMol ]
 
  Cis Peptide Bonds
(no "Cis Peptide Bonds" information available for 1zpt)
 
Biological Unit
  Complete Structure
    Biological Unit 1  [ Jena3D ]

(-) Still Images

Jmol
  protein: cartoon or spacefill or dots and stick; nucleic acid: cartoon and stick; ligands: spacefill; active site: stick
[ Asym. Unit PNG format | Asym. Unit - sites PNG format | Biol. Unit 1 PNG format | Biol. Unit 1 - sites PNG format ](automatic orientation, automatically generated)
Molscript
  protein, nucleic acid: cartoon; ligands: spacefill; active site: ball and stick
[ mono PDF format | stereo PDF format ](default orientation, automatically generated)

 Databases and Analysis Tools

(-) Databases

Access by PDB/NDB ID
  1zpt
    Family and Domain Information: ProDom | SYSTERS
    General Structural Information: GlycoscienceDB | MMDB | NDB | OCA | PDB | PDBe | PDBj | PDBsum | PDBWiki | PQS | PROTEOPEDIA
    Orientation in Membranes: OPM
    Protein Surface: SURFACE
    Secondary Structure: DSSP (structure derived) | HSSP (homology derived)
    Structural Genomics: GeneCensus
    Structural Neighbours: CE | VAST
    Structure Classification: CATH | Dali | SCOP
    Validation and Original Data: BMRB Data View | BMRB Restraints Grid | EDS | PROCHECK | RECOORD | WHAT_CHECK
 
Access by UniProt ID/Accession number
  METF_ECOLI | P0AEZ1
    Comparative Protein Structure Models: ModBase
    Genomic Information: Ensembl
    Protein-protein Interaction: DIP
    Sequence, Family and Domain Information: InterPro | Pfam | SMART | UniProtKB/SwissProt
  METF_SHIFL | P0AEZ2
    Comparative Protein Structure Models: ModBase
    Genomic Information: Ensembl
    Protein-protein Interaction: DIP
    Sequence, Family and Domain Information: InterPro | Pfam | SMART | UniProtKB/SwissProt
 
Access by Enzyme Classificator   (EC Number)
  1.7.99.5
    General Enzyme Information: BRENDA | EC-PDB | Enzyme | IntEnz
    Pathway: KEGG | MetaCyc
 
Access by Disease Identifier   (MIM ID)
  (no 'MIM ID' available)
    Disease Information: OMIM
 
Access by GenAge ID
  (no 'GenAge ID' available)
    Age Related Information: GenAge

(-) Analysis Tools

Access by PDB/NDB ID
    Domain Information: XDom
    Interatomic Contacts of Structural Units: CSU
    Ligand-protein Contacts: LPC
    Protein Cavities: castP
    Sequence and Secondary Structure: PDBCartoon
    Structure Alignment: STRAP(Java WebStart application, automatic local installation, requires Java; full application with system access!)
    Structure and Sequence Browser: STING
 
Access by UniProt ID/Accession number
  METF_ECOLI | P0AEZ1
    Protein Disorder Prediction: DisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)
  METF_SHIFL | P0AEZ2
    Protein Disorder Prediction: DisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)

 Related Entries

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

UniProtKB/Swiss-Prot
        METF_ECOLI | P0AEZ1: 1b5t 1zp3 1zp4 1zrq 2fmn 2fmo 3fst 3fsu
        METF_SHIFL | P0AEZ2: 1b5t 1zp3 1zp4 1zrq

(-) Related Entries Specified in the PDB File

1b5t 1zp3 1zp4 1zrq