Annotations: 6HUY

HmdII from Desulfurobacterium thermolithotrophum reconstitued with Fe-guanylylpyridinol (FeGP) cofactor and co-crystallized with methenyl-tetrahydrofolate form A

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
InterPro: Protein Family Classification
Protein Modification Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	UT	e6huyD1	A: beta barrels	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: UT	ECOD (v294.2)
B	UT	e6huyB1	A: beta barrels	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: UT	ECOD (v294.2)
C	UT	e6huyC1	A: beta barrels	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: UT	ECOD (v294.2)
A	UT	e6huyA1	A: beta barrels	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: UT	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
A	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B, D	PF22616	HMD N-terminal domain (HMD_N)	HMD N-terminal domain	This entry represents the N-terminal domain of 5,10-methenyltetrahydromethanopterin hydrogenase (HMD) and related proteins, an enzyme of the methanogenic energy metabolism [1-5]. HMD is an iron-sulphur-cluster-free enzyme that contains an intrinsic C ...	This entry represents the N-terminal domain of 5,10-methenyltetrahydromethanopterin hydrogenase (HMD) and related proteins, an enzyme of the methanogenic energy metabolism [1-5]. HMD is an iron-sulphur-cluster-free enzyme that contains an intrinsic CO ligand bound to iron. This domain has a Rossmann fold-like structure that contains a mononucleotide-binding site, which could harbour the GMP moiety of the cofactor [1-5].	Domain
B, D	PF03201	H2-forming N5,N10-methylene-tetrahydromethanopterin dehydrogenase (HMD)	H2-forming N5,N10-methylene-tetrahydromethanopterin dehydrogenase	-	Family
A, C	PF22616	HMD N-terminal domain (HMD_N)	HMD N-terminal domain	This entry represents the N-terminal domain of 5,10-methenyltetrahydromethanopterin hydrogenase (HMD) and related proteins, an enzyme of the methanogenic energy metabolism [1-5]. HMD is an iron-sulphur-cluster-free enzyme that contains an intrinsic C ...	This entry represents the N-terminal domain of 5,10-methenyltetrahydromethanopterin hydrogenase (HMD) and related proteins, an enzyme of the methanogenic energy metabolism [1-5]. HMD is an iron-sulphur-cluster-free enzyme that contains an intrinsic CO ligand bound to iron. This domain has a Rossmann fold-like structure that contains a mononucleotide-binding site, which could harbour the GMP moiety of the cofactor [1-5].	Domain
A, C	PF03201	H2-forming N5,N10-methylene-tetrahydromethanopterin dehydrogenase (HMD)	H2-forming N5,N10-methylene-tetrahydromethanopterin dehydrogenase	-	Family

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B, D	IPR038182	HMD, C-terminal domain superfamily	Homologous Superfamily
B, D	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
B, D	IPR010063	H(2)-forming methylenetetrahydromethanopterin dehydrogenase-related protein	Family
B, D	IPR004889	H2-forming N5,N10-methylenetetrahydromethanopterin dehydrogenase, C-terminal	Domain
B, D	IPR055205	5,10-methenyltetrahydromethanopterin hydrogenase, N-terminal domain	Domain
B, D	IPR008927	6-phosphogluconate dehydrogenase-like, C-terminal domain superfamily	Homologous Superfamily
A, C	IPR038182	HMD, C-terminal domain superfamily	Homologous Superfamily
A, C	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A, C	IPR010063	H(2)-forming methylenetetrahydromethanopterin dehydrogenase-related protein	Family
A, C	IPR004889	H2-forming N5,N10-methylenetetrahydromethanopterin dehydrogenase, C-terminal	Domain
A, C	IPR055205	5,10-methenyltetrahydromethanopterin hydrogenase, N-terminal domain	Domain
A, C	IPR008927	6-phosphogluconate dehydrogenase-like, C-terminal domain superfamily	Homologous Superfamily

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
B, D	CSO	Parent Component: CYS : AA0205 : L-cysteine sulfenic acid MOD:00210

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.