Annotations: 4C26

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	HicA_toxin	e4c26A1	A: a+b two layers	X: dsRBD-like	H: PI-Pfui intein middle domain (From Topology)	T: PI-Pfui intein middle domain	F: HicA_toxin	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.920.30	Alpha Beta	2-Layer Sandwich	Metal Transport, Frataxin	Chain A	CATH (4.2.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF07927	HicA toxin of bacterial toxin-antitoxin, (HicA_toxin)	HicA toxin of bacterial toxin-antitoxin,	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	HICA	hydrolase activity catalytic activity RNA binding binding nucleic acid binding mRNA binding endonuclease activity nuclease activity catalytic activity, acting on a nucleic acid	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR012933	HicA mRNA interferase family	Family
A	IPR038570	HicA superfamily	Homologous Superfamily

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.