3IZ4 | pdb_00003iz4

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Small protein B (SmpB)	8042603	3000956	SCOP2B (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Cbl_N3	e3iz4B1	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: Cbl_N3	ECOD (v294.1)

Chains	Accession	Name	Description	Comments	Source
B	PF01668	SmpB protein (SmpB)	SmpB protein	-	Family

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	SsrA-binding protein	RNA binding binding rRNA binding nucleic acid binding	primary metabolic process translation gene expression macromolecule biosynthetic process protein biosynthetic process biosynthetic process trans-translation translational elongation metabolic process cellular process macromolecule metabolic process protein metabolic process cellular component disassembly trans-translation-dependent protein tagging primary metabolic process translation gene expression macromolecule biosynthetic process protein biosynthetic process biosynthetic process trans-translation translational elongation metabolic process cellular process macromolecule metabolic process protein metabolic process cellular component disassembly trans-translation-dependent protein tagging ribosome disassembly cellular component organization organelle organization organelle disassembly cytoplasmic translation cytoplasmic translational elongation cellular component organization or biogenesis rescue of stalled cytosolic ribosome	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol
A	Modified E. coli transfer-messenger RNA	-	-	-

Chains	Accession	Name	Type
B	IPR020081	SsrA-binding protein, conserved site	Conserved Site
B	IPR023620	Small protein B	Homologous Superfamily
B	IPR000037	SsrA-binding protein	Family

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.

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