Annotations: 4NNI

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Peptidase_M99_C	e4nniB1	A: a/b three-layered sandwiches	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: Peptidase_M99_C	ECOD (v294.1)
A	Peptidase_M99_C	e4nniA1	A: a/b three-layered sandwiches	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: Peptidase_M99_C	ECOD (v294.1)

Chains	Accession	Name	Description	Comments	Source
A, B	PF00575	S1 RNA binding domain (S1)	S1 RNA binding domain	The S1 domain occurs in a wide range of RNA associated proteins. It is structurally similar to cold shock protein which binds nucleic acids. The S1 domain has an OB-fold structure.	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	30S ribosomal protein S1	RNA binding binding nucleic acid binding mRNA binding structural molecule activity structural constituent of ribosome	biosynthetic process metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process translation gene expression protein biosynthetic process macromolecule biosynthetic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane cytosolic small ribosomal subunit protein-containing complex small ribosomal subunit intracellular membraneless organelle intracellular organelle ribosomal subunit cytosolic ribosome cellular anatomical structure intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane cytosolic small ribosomal subunit protein-containing complex small ribosomal subunit intracellular membraneless organelle intracellular organelle ribosomal subunit cytosolic ribosome organelle ribonucleoprotein complex membraneless organelle ribosome external encapsulating structure extracellular region cell wall peptidoglycan-based cell wall

Chains	Accession	Name	Type
A, B	IPR035104	Ribosomal protein S1-like	Family
A, B	IPR003029	S1 domain	Domain
A, B	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
A, B	IPR050437	Small ribosomal subunit protein bS1-like	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.

4NNI | pdb_00004nni