Annotations: 4ZJ9

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	HSP20	e4zj9A1	A: beta sandwiches	X: HSP20-like	H: HSP20-like chaperones (From Topology)	T: HSP20-like chaperones	F: HSP20	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.790	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00011	Hsp20/alpha crystallin family (HSP20)	Hsp20/alpha crystallin family	Not only do small heat-shock-proteins occur in eukaryotes and prokaryotes but they have also now been shown to occur in cyanobacterial phages as well as their bacterial hosts [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Aggregation suppressing protein	-	-	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR002068	Alpha crystallin/Hsp20 domain	Domain
A	IPR037913	Small heat shock protein IbpA/IbpB, ACD domain	Domain
A	IPR008978	HSP20-like chaperone	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.