Annotations: 4HRO

Crystal structure of H. volcanii small archaeal modifier protein 1

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	MoaD/ThiS-like	8087477	3000330	SCOP2B (2022-06-29)
B	SCOP2 Family	MoaD	8087476	4000980	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	MoaD/ThiS-like	8087477	3000330	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Sigma70_r2,Sigma70_ner	e4hroA1	A: a/b three-layered sandwiches	X: TIM beta/alpha-barrel	H: TIM barrels	T: TIM barrels	F: Sigma70_r2,Sigma70_ner	ECOD (v294.1)
B	Sigma70_r2,Sigma70_ner	e4hroB1	A: a/b three-layered sandwiches	X: TIM beta/alpha-barrel	H: TIM barrels	T: TIM barrels	F: Sigma70_r2,Sigma70_ner	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.20.30	Alpha Beta	Roll	Ubiquitin-like (UB roll)	Beta-grasp domain	CATH (4.3.0)
B	3.10.20.30	Alpha Beta	Roll	Ubiquitin-like (UB roll)	Beta-grasp domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02597	ThiS family (ThiS)	ThiS family	ThiS (thiaminS) is a 66 aa protein involved in sulphur transfer Swiss:O32583. ThiS is coded in the thiCEFSGH operon in E. coli. This family of proteins have two conserved Glycines at the COOH terminus. Thiocarboxylate is formed at the last G in the a ...	ThiS (thiaminS) is a 66 aa protein involved in sulphur transfer Swiss:O32583. ThiS is coded in the thiCEFSGH operon in E. coli. This family of proteins have two conserved Glycines at the COOH terminus. Thiocarboxylate is formed at the last G in the activation process. Sulphur is transferred from ThiI to ThiS in a reaction catalysed by IscS [1]. MoaD, Swiss:P30748 a protein involved sulphur transfer in molybdopterin synthesis, is about the same length and shows limited sequence similarity to ThiS. Both have the conserved GG at the COOH end.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Small archaeal modifier protein 1	protein tag activity molecular tag activity binding nucleoside phosphate binding nucleotide binding heterocyclic compound binding small molecule binding	macromolecule modification metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal Mo-molybdopterin cofactor biosynthetic process Mo-molybdopterin cofactor metabolic process prosthetic group metabolic process molybdopterin cofactor biosynthetic process macromolecule modification metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal Mo-molybdopterin cofactor biosynthetic process Mo-molybdopterin cofactor metabolic process prosthetic group metabolic process molybdopterin cofactor biosynthetic process biosynthetic process organophosphate metabolic process organophosphate biosynthetic process molybdopterin cofactor metabolic process phosphate-containing compound metabolic process phosphorus metabolic process	transferase complex, transferring phosphorus-containing groups protein-containing complex cellular anatomical structure intracellular anatomical structure catalytic complex molybdopterin adenylyltransferase complex adenylyltransferase complex cytoplasm transferase complex cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR003749	Sulfur carrier ThiS/MoaD-like	Family
A, B	IPR016155	Molybdopterin synthase/thiamin biosynthesis sulphur carrier, beta-grasp	Homologous Superfamily
A, B	IPR044672	Molybdopterin synthase sulfur carrier subunit	Family
A, B	IPR010038	MoaD, archaeal-type	Family
A, B	IPR054834	Small archaeal modifier protein 1/3	Family
A, B	IPR012675	Beta-grasp domain superfamily	Homologous Superfamily

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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.