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(-) Description

Title :  ESCHERICHIA COLI METHYLENETETRAHYDROFOLATE REDUCTASE
 
Authors :  B. D. Guenther, C. A. Sheppard, P. Tran, R. Rozen, R. G. Matthews, M. L. Ludwig
Date :  07 Jan 99  (Deposition) - 20 Jan 99  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.50
Chains :  Asym./Biol. Unit :  A,B,C
Keywords :  Beta Alpha Barrel, Reductase, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  B. D. Guenther, C. A. Sheppard, P. Tran, R. Rozen, R. G. Matthews, M. L. Ludwig
The Structure And Properties Of Methylenetetrahydrofolate Reductase From Escherichia Coli Suggest How Folate Ameliorates Human Hyperhomocysteinemia.
Nat. Struct. Biol. V. 6 359 1999
PubMed-ID: 10201405  |  Reference-DOI: 10.1038/7594
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PROTEIN (METHYLENETETRAHYDROFOLATE REDUCTASE)
    Chains: A, B, C
    EC Number: 1.7.99.5
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Gene: METF
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 562

 Structural Features

(-) Chains, Units

  123
Asymmetric/Biological Unit : ABC

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (2, 6)
No.NameCountTypeFull Name
1FAD3Ligand/IonFLAVIN-ADENINE DINUCLEOTIDE
2HG3Ligand/IonMERCURY (II) ION

(-) Sites  (6, 6)

Asymmetric Unit (6, 6)
No.NameEvidenceResiduesDescription
1AC1SOFTWARECYS A:91 , MET A:130BINDING SITE FOR RESIDUE HG A 501
2AC2SOFTWARECYS B:91 , ILE B:92 , MET B:130BINDING SITE FOR RESIDUE HG B 501
3AC3SOFTWARECYS C:91 , ILE C:92 , ARG C:118BINDING SITE FOR RESIDUE HG C 501
4AC4SOFTWARETHR A:59 , TYR A:60 , HIS A:88 , LEU A:117 , ARG A:118 , GLY A:119 , ASP A:120 , 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 , TYR A:275 , HOH A:606 , HOH A:658 , HOH A:659 , HOH A:680BINDING SITE FOR RESIDUE FAD A 395
5AC5SOFTWARETHR B:59 , TYR B:60 , 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:608 , HOH B:687 , HOH B:692 , HOH B:696 , HOH B:703BINDING SITE FOR RESIDUE FAD B 396
6AC6SOFTWARETHR 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 , ILE C:181 , TYR C:275 , HOH C:663 , HOH C:688BINDING SITE FOR RESIDUE FAD C 397

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1B5T)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1B5T)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1B5T)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1B5T)

(-) Exons   (0, 0)

(no "Exon" information available for 1B5T)

(-) 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:275
 aligned with METF_ECOLI | P0AEZ1 from UniProtKB/Swiss-Prot  Length:296

    Alignment length:275
                                    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     
           METF_ECOLI    21 GQINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPPGSGKPEMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRPG 295
               SCOP domains d1b5ta_ A: Methylenetetrahydrofolate reductase                                                                                                                                                                                                                                      SCOP domains
               CATH domains 1b5tA00 A:21-295  [code=3.20.20.220, no name defined]                                                                                                                                                                                                                               CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeee....hhhhhhhhhhhhhhhhh....eeee....hhhhhhhhhhhhhhhhhhhh..eeeee.....hhhhhhhhhhhhhhh...eeee..............hhhhhhhhhhhhh..eeeeee.........hhhhhhhhhhhhhhhh..eeeeee..hhhhhhhhhhhhhhh.....eeeee....hhhhhhhhhhh.....hhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhh...eeeee....hhhhhhhhhhh..... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1b5t A  21 GQINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPPGSGKPEMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRPA 295
                                    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     


Chain A from PDB  Type:PROTEIN  Length:275
 aligned with METF_SHIFL | P0AEZ2 from UniProtKB/Swiss-Prot  Length:296

    Alignment length:275
                                    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     
           METF_SHIFL    21 GQINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPPGSGKPEMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRPG 295
               SCOP domains d1b5ta_ A: Methylenetetrahydrofolate reductase                                                                                                                                                                                                                                      SCOP domains
               CATH domains 1b5tA00 A:21-295  [code=3.20.20.220, no name defined]                                                                                                                                                                                                                               CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeee....hhhhhhhhhhhhhhhhh....eeee....hhhhhhhhhhhhhhhhhhhh..eeeee.....hhhhhhhhhhhhhhh...eeee..............hhhhhhhhhhhhh..eeeeee.........hhhhhhhhhhhhhhhh..eeeeee..hhhhhhhhhhhhhhh.....eeeee....hhhhhhhhhhh.....hhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhh...eeeee....hhhhhhhhhhh..... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1b5t A  21 GQINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPPGSGKPEMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRPA 295
                                    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     


Chain B from PDB  Type:PROTEIN  Length:274
 aligned with METF_ECOLI | P0AEZ1 from UniProtKB/Swiss-Prot  Length:296

    Alignment length:274
                                    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 QINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPPGSGKPEMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRPG 295
               SCOP domains d1b5tb_ B: Methylenetetrahydrofolate reductase                                                                                                                                                                                                                                     SCOP domains
               CATH domains 1b5tB00 B:22-295  [code=3.20.20.220, no name defined]                                                                                                                                                                                                                              CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeee....hhhhhhhhhhhhhhhhh....eeee.....hhhhhhhhhhhhhhhhhhh..eeeeee....hhhhhhhhhhhhhhh...eeeee.............hhhhhhhhhhhhh..eeeeee.........hhhhhhhhhhhhhhh...eeeeee..hhhhhhhhhhhhhhh....eeeeee....hhhhhhhhhhhhh...hhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhh...eeeee....hhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1b5t B  22 QINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPPGSGKPEMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRPA 295
                                    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    


Chain B from PDB  Type:PROTEIN  Length:274
 aligned with METF_SHIFL | P0AEZ2 from UniProtKB/Swiss-Prot  Length:296

    Alignment length:274
                                    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 QINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPPGSGKPEMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRPG 295
               SCOP domains d1b5tb_ B: Methylenetetrahydrofolate reductase                                                                                                                                                                                                                                     SCOP domains
               CATH domains 1b5tB00 B:22-295  [code=3.20.20.220, no name defined]                                                                                                                                                                                                                              CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeee....hhhhhhhhhhhhhhhhh....eeee.....hhhhhhhhhhhhhhhhhhh..eeeeee....hhhhhhhhhhhhhhh...eeeee.............hhhhhhhhhhhhh..eeeeee.........hhhhhhhhhhhhhhh...eeeeee..hhhhhhhhhhhhhhh....eeeeee....hhhhhhhhhhhhh...hhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhh...eeeee....hhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1b5t B  22 QINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPPGSGKPEMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRPA 295
                                    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    


Chain C from PDB  Type:PROTEIN  Length:267
 aligned with METF_ECOLI | P0AEZ1 from UniProtKB/Swiss-Prot  Length:296

    Alignment length:274
                                    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 QINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPPGSGKPEMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRPG 295
               SCOP domains d1b5tc_ C: Methylenetetrahydrofolate reductase                                                                                                                                                                                                                                     SCOP domains
               CATH domains 1b5tC00 C:22-295  [code=3.20.20.220, no name defined]                                                                                                                                                                                                                              CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeee....hhhhhhhhhhhhhhhhh....eeee....hhhhhhhhhhhhhhhhhhh...eeeeee....hhhhhhhhhhhhhhh...eeeee......-------hhhhhhhhhhhhh..eeeeee.........hhhhhhhhhhhhhhhheeeeee....hhhhhhhhhhhhhhh.....ee.ee....hhhhhhhhhhhhh...hhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhh...eeeee....hhhhhhhhhhh..... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1b5t C  22 QINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPP-------YASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRPA 295
                                    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    
                                                                                                                               123     131                                                                                                                                                                    


Chain C from PDB  Type:PROTEIN  Length:267
 aligned with METF_SHIFL | P0AEZ2 from UniProtKB/Swiss-Prot  Length:296

    Alignment length:274
                                    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 QINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPPGSGKPEMYASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRPG 295
               SCOP domains d1b5tc_ C: Methylenetetrahydrofolate reductase                                                                                                                                                                                                                                     SCOP domains
               CATH domains 1b5tC00 C:22-295  [code=3.20.20.220, no name defined]                                                                                                                                                                                                                              CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeee....hhhhhhhhhhhhhhhhh....eeee....hhhhhhhhhhhhhhhhhhh...eeeeee....hhhhhhhhhhhhhhh...eeeee......-------hhhhhhhhhhhhh..eeeeee.........hhhhhhhhhhhhhhhheeeeee....hhhhhhhhhhhhhhh.....ee.ee....hhhhhhhhhhhhh...hhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhh...eeeee....hhhhhhhhhhh..... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1b5t C  22 QINVSFEFFPPRTSEMEQTLWNSIDRLSSLKPKFVSVTYGANSGERDRTHSIIKGIKDRTGLEAAPHLTCIDATPDELRTIARDYWNNGIRHIVALRGDLPP-------YASDLVTLLKEVADFDISVAAYPEVHPEAKSAQADLLNLKRKVDAGANRAITQFFFDVESYLRFRDRCVSAGIDVEIIPGILPVSNFKQAKKFADMTNVRIPAWMAQMFDGLDDDAETRKLVGANIAMDMVKILSREGVKDFHFYTLNRAEMSYAICHTLGVRPA 295
                                    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    
                                                                                                                               123     131
   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/Biological Unit
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (1, 3)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1B5T)

(-) Gene Ontology  (12, 20)

Asymmetric/Biological 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.

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  1b5t
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  METF_SHIFL | P0AEZ2
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  1.7.99.5
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 Related Entries

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

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

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 1B5T)