_EC 1.12.98.2 5,10-methenyltetrahydromethanopterin hydrogenase. 8 PDB entries  
EC 1.-.-.- Oxidoreductases. [8,646 PDB entries]
EC 1.12.-.- Acting on hydrogen as donor. [67 PDB entries]
EC 1.12.98.- With other known acceptors. [11 PDB entries]
EC 1.12.98.2 5,10-methenyltetrahydromethanopterin hydrogenase. [8 PDB entries]    
2b0j

Reaction: H(2) + 5,10-methenyltetrahydromethanopterin = H(+) + 5,10- methylenetetrahydromethanopterin.
 

H(2)
+
5,10-methenyltetrahydromethanopterin
= H(+)
+
5,10- methylenetetrahydromethanopterin
Molecule diagrams generated from .mol files obtained from the KEGG ftp site.

Other name(s): H(2)-dependent methylene-H(4)MPT dehydrogenase. H(2)-forming N(5),N(10)-methylenetetrahydromethanopterin dehydrogenase. Hydrogen:N(5),N(10)-methenyltetrahydromethanopterin oxidoreductase. N(5),N(10)-methenyltetrahydromethanopterin hydrogenase. Nonmetal hydrogenase.
Comments: Does not catalyze the reduction of artificial dyes. Does not by itself catalyze a H(2)/H(+) exchange reaction. Does not contain nickel or iron-sulfur clusters. Formerly Ec 1.12.99.4.
Links:   [IntEnz]   [ExPASy]   [KEGG]  

There are 8 PDB entries in enzyme class E.C.1.12.98.2

  PDB code Protein
2b0j
The crystal structure of the apoenzyme of the iron-sulfur-cl hydrogenase (hmd)
Source: Methanocaldococcus jannaschii. Organism_taxid: 2190. Strain: dsmz2661. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (344 residues) CATH domains: Unassigned Unassigned
3daf
The crystal structure of [fe]-hydrogenase holoenzyme (hmd) f methanocaldococcus jannaschii cocrystallized with cyanide
Source: Methanocaldococcus jannaschii. Methanococcus jannaschii. Organism_taxid: 2190. Strain: dsmz2661. Gene: hmd, mj0784. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (344 residues) CATH domains: Unassigned Unassigned
3dag
The crystal structure of [fe]-hydrogenase holoenzyme (hmd) f methanocaldococcus jannaschii
Source: Methanocaldococcus jannaschii. Methanococcus jannaschii. Organism_taxid: 2190. Strain: dsmz2661. Gene: hmd, mj0784. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (344 residues) CATH domains: Unassigned Unassigned
3f46
The crystal structure of c176a mutated [fe]-hydrogenase (hmd holoenzyme from methanocaldococcus jannaschii
Source: Methanocaldococcus jannaschii. Methanococcus jannaschii. Organism_taxid: 2190. Strain: dsm 2661. Gene: hmd, mj0784. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (345 residues) CATH domains: Unassigned Unassigned
3f47
The crystal structure of [fe]-hydrogenase (hmd) holoenzyme f methanocaldococcus jannaschii
Source: Methanocaldococcus jannaschii. Methanococcus jannaschii. Organism_taxid: 2190. Strain: dsm 2661. Gene: hmd, mj0784. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (344 residues) CATH domains: Unassigned Unassigned
3h65
The crystal structure of c176a mutated [fe]-hydrogenase (hmd holoenzyme in complex with methylenetetrahydromethanopterin
Source: Methanocaldococcus jannaschii. Methanococcus jannaschii. Organism_taxid: 2190. Strain: dsm 2661. Gene: hmd, mj0784. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (345 residues) CATH domains: Unassigned Unassigned
Bound ligand:   Het Group H4M corresponds to enzyme reactant 5,10-
4jjf
Crystal structure of fe-hydrogenase from methanothermobacter marburgensis in complex with 2-naphthylisocyanide
Source: Methanothermobacter marburgensis. Organism_taxid: 79929. Strain: dsm 2133 / 14651 / nbrc 100331 / ocm 82 / marburg
Chains: A, B (344 residues) CATH domains: Unassigned Unassigned
4jjg
Crystal structure of fe-hydrogenase from methanothermobacter marburgensis in complex with toluenesulfonylmethylisocyanid
Source: Methanothermobacter marburgensis. Organism_taxid: 79929. Strain: dsm 2133 / 14651 / nbrc 100331 / ocm 82 / marburg
Chains: A, B (344 residues) CATH domains: Unassigned Unassigned