Annotations: 1G1X

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
J [auth H]	d1g1xh_	All alpha proteins	DNA/RNA-binding 3-helical bundle	Ribosomal protein S18	Ribosomal protein S18	Ribosomal protein S18	(Thermus thermophilus ) [TaxId: 274 ],	SCOPe (2.08)
G [auth C]	d1g1xc_	All alpha proteins	DNA/RNA-binding 3-helical bundle	Ribosomal protein S18	Ribosomal protein S18	Ribosomal protein S18	(Thermus thermophilus ) [TaxId: 274 ],	SCOPe (2.08)
I [auth G]	d1g1xg_	All alpha proteins	S15/NS1 RNA-binding domain	S15/NS1 RNA-binding domain	Ribosomal protein S15	Ribosomal protein S15	(Thermus thermophilus ) [TaxId: 274 ],	SCOPe (2.08)
F [auth B]	d1g1xb_	All alpha proteins	S15/NS1 RNA-binding domain	S15/NS1 RNA-binding domain	Ribosomal protein S15	Ribosomal protein S15	(Thermus thermophilus ) [TaxId: 274 ],	SCOPe (2.08)
H [auth F]	d1g1xf_	Alpha and beta proteins (a+b)	Ferredoxin-like	Ribosomal protein S6	Ribosomal protein S6	Ribosomal protein S6	(Thermus thermophilus ) [TaxId: 274 ],	SCOPe (2.08)
E [auth A]	d1g1xa_	Alpha and beta proteins (a+b)	Ferredoxin-like	Ribosomal protein S6	Ribosomal protein S6	Ribosomal protein S6	(Thermus thermophilus ) [TaxId: 274 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
J [auth H]	Homeodomain	e1g1xH1	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: winged helix domain	F: Homeodomain	ECOD (v294.1)
G [auth C]	Homeodomain	e1g1xC1	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: winged helix domain	F: Homeodomain	ECOD (v294.1)
I [auth G]	HHH_5	e1g1xG1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: YozE-like	T: YozE-like	F: HHH_5	ECOD (v294.1)
F [auth B]	HHH_5	e1g1xB1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: YozE-like	T: YozE-like	F: HHH_5	ECOD (v294.1)
H [auth F]	ABM	e1g1xF1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: Rpp14/Pop5-like	T: Rpp14/Pop5-like	F: ABM	ECOD (v294.1)
E [auth A]	ABM	e1g1xA1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: Rpp14/Pop5-like	T: Rpp14/Pop5-like	F: ABM	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
J [auth H]	4.10.640.10	Few Secondary Structures	Irregular	30s Ribosomal Protein S18	Ribosomal protein S18	CATH (4.3.0)
G [auth C]	4.10.640.10	Few Secondary Structures	Irregular	30s Ribosomal Protein S18	Ribosomal protein S18	CATH (4.3.0)
I [auth G]	1.10.287.10	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	S15/NS1, RNA-binding	CATH (4.3.0)
F [auth B]	1.10.287.10	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	S15/NS1, RNA-binding	CATH (4.3.0)
H [auth F]	3.30.70.60	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Ribosomal protein S6/Translation elongation factor EF1B	CATH (4.3.0)
E [auth A]	3.30.70.60	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Ribosomal protein S6/Translation elongation factor EF1B	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
G [auth C], J [auth H]	PF01084	Ribosomal protein S18 (Ribosomal_S18)	Ribosomal protein S18	-	Family
F [auth B], I [auth G]	PF00312	Ribosomal protein S15 (Ribosomal_S15)	Ribosomal protein S15		Domain
E [auth A], H [auth F]	PF01250	Ribosomal protein S6 (Ribosomal_S6)	Ribosomal protein S6		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
G [auth C], J [auth H]	30S RIBOSOMAL PROTEIN S18	RNA binding small ribosomal subunit rRNA binding binding rRNA binding nucleic acid 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	protein-containing complex ribonucleoprotein complex intracellular organelle cellular anatomical structure intracellular anatomical structure organelle membraneless organelle intracellular membraneless organelle ribosome
F [auth B], I [auth G]	30S RIBOSOMAL PROTEIN S15	structural molecule activity structural constituent of ribosome RNA binding binding rRNA binding nucleic acid binding	biosynthetic process metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process translation gene expression protein biosynthetic process macromolecule biosynthetic process	cytosolic small ribosomal subunit protein-containing complex intracellular anatomical structure small ribosomal subunit intracellular membraneless organelle intracellular organelle ribosomal subunit cellular anatomical structure cytosolic ribosome organelle ribonucleoprotein complex membraneless organelle ribosome cytoplasm cytosolic small ribosomal subunit protein-containing complex intracellular anatomical structure small ribosomal subunit intracellular membraneless organelle intracellular organelle ribosomal subunit cellular anatomical structure cytosolic ribosome organelle ribonucleoprotein complex membraneless organelle ribosome cytoplasm cytosol
E [auth A], H [auth F]	30S RIBOSOMAL PROTEIN S6	RNA binding small ribosomal subunit rRNA binding binding rRNA binding nucleic acid 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	protein-containing complex ribonucleoprotein complex cellular anatomical structure intracellular anatomical structure cytoplasm intracellular organelle organelle membraneless organelle intracellular membraneless organelle ribosome
B [auth E], D [auth J]	16S RIBOSOMAL RNA	-	-	-
A [auth D], C [auth I]	16S RIBOSOMAL RNA	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
G [auth C], J [auth H]	IPR001648	Small ribosomal subunit protein bS18	Family
G [auth C], J [auth H]	IPR018275	Small ribosomal subunit protein bS18, conserved site	Conserved Site
G [auth C], J [auth H]	IPR036870	Small ribosomal subunit protein bS18 superfamily	Homologous Superfamily
F [auth B], I [auth G]	IPR005290	Small ribosomal subunit protein uS15, bacteria	Family
F [auth B], I [auth G]	IPR009068	uS15/NS1, RNA-binding domain superfamily	Homologous Superfamily
F [auth B], I [auth G]	IPR000589	Small ribosomal subunit protein uS15	Family
E [auth A], H [auth F]	IPR020815	Small ribosomal subunit protein bS6, conserved site	Conserved Site
E [auth A], H [auth F]	IPR000529	Small ribosomal subunit protein bS6	Family
E [auth A], H [auth F]	IPR020814	Small ribosomal subunit protein bS6, plastid/chloroplast	Family
E [auth A], H [auth F]	IPR035980	Small ribosomal subunit protein bS6 superfamily	Homologous Superfamily
E [auth A], H [auth F]	IPR014717	Translation elongation factor EF1B/small ribosomal subunit protein bS6	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.