Chains	Domain	Class	Architecture	Topology	Homology
B2	4dv0B02	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin
C1	4dv0C01	Alpha Beta	2-Layer Sandwich	GMP Synthetase; Chain A, domain 3
C2	4dv0C02	Alpha Beta	2-Layer Sandwich	Ribosomal protein S3 C-terminal domain
D1	4dv0D01	Mainly Alpha	Orthogonal Bundle	Ribosomal Protein S4 Delta 41; Chain A, domain 1	Ribosomal Protein S4 Delta 41; Chain A, domain 1
D2	4dv0D02	Alpha Beta	Roll	Structural Genomics Hypothetical 15.5 Kd Protein In mrcA- pckA Intergenic Region; Chain A	Structural Genomics Hypothetical 15.5 Kd Protein In Mrca- pcka Intergenic Region; Chain
E1	4dv0E01	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain
E2	4dv0E02	Alpha Beta	2-Layer Sandwich	Ribosomal Protein S5; domain 2
F	4dv0F00	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits
G	4dv0G00	Mainly Alpha	Orthogonal Bundle	Ribosomal Protein S7	Ribosomal Protein S7;
H2	4dv0H02	Alpha Beta	2-Layer Sandwich	Dna Ligase; domain 1
I	4dv0I00	Alpha Beta	2-Layer Sandwich	Ribosomal Protein S5; domain 2
K	4dv0K00	Alpha Beta	2-Layer Sandwich	Nucleotidyltransferase; domain 5
L	4dv0L00	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins
M1	4dv0M01	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein; domain 3
M2	4dv0M02	Few Secondary Structures	Irregular	30s ribosomal protein s13; domain 2	30s ribosomal protein s13, domain 2
N	4dv0N00	Few Secondary Structures	Irregular	30s Ribosomal Protein S14; Chain N	30s Ribosomal Protein S14; Chain N
O	4dv0O00	Mainly Alpha	Orthogonal Bundle	Helix Hairpins
R	4dv0R00	Few Secondary Structures	Irregular	30s Ribosomal Protein S18	30s Ribosomal Protein S18
S	4dv0S00	Alpha Beta	2-Layer Sandwich	30s Ribosomal Protein S19; Chain A	30s Ribosomal Protein S19; Chain A
T	4dv0T00	Mainly Alpha	Up-down Bundle	Methane Monooxygenase Hydroxylase; Chain G, domain 1

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	16S rRNA (4DV0:A)	none	none	none
B	ribosomal protein S2 (4DV0:B)	RNA Binding Structural Constituent of Ribosome RRNA Binding	Translation	Intracellular Ribosome Small Ribosomal Subunit Intracellular Ribonucleoprotein Complex
C	ribosomal protein S3 (4DV0:C)	Nucleic Acid Binding RNA Binding Structural Constituent of Ribosome RRNA Binding	Translation	Ribosome Small Ribosomal Subunit Intracellular Ribonucleoprotein Complex
D	ribosomal protein S4 (4DV0:D)	RNA Binding Structural Constituent of Ribosome RRNA Binding Metal Ion Binding	Translation	Intracellular Ribosome Small Ribosomal Subunit Intracellular Ribonucleoprotein Complex
E	ribosomal protein S5 (4DV0:E)	RNA Binding Structural Constituent of Ribosome RRNA Binding	Translation	Ribosome Small Ribosomal Subunit Intracellular Ribonucleoprotein Complex
F	ribosomal protein S6 (4DV0:F)	RNA Binding Structural Constituent of Ribosome RRNA Binding	Translation	Ribosome Intracellular Ribonucleoprotein Complex
G	ribosomal protein S7 (4DV0:G)	TRNA Binding RNA Binding Structural Constituent of Ribosome RRNA Binding	Translation	Ribosome Small Ribosomal Subunit Intracellular Ribonucleoprotein Complex
H	ribosomal protein S8 (4DV0:H)	RNA Binding Structural Constituent of Ribosome RRNA Binding	Translation	Ribosome Intracellular Ribonucleoprotein Complex
I	ribosomal protein S9 (4DV0:I)	TRNA Binding RNA Binding Structural Constituent of Ribosome RRNA Binding	Translation	Ribosome Intracellular Ribonucleoprotein Complex
J	ribosomal protein S10 (4DV0:J)	RNA Binding Structural Constituent of Ribosome RRNA Binding	Translation	Intracellular Ribosome Intracellular Ribonucleoprotein Complex
K	ribosomal protein S11 (4DV0:K)	RNA Binding Structural Constituent of Ribosome RRNA Binding	Translation	Intracellular Ribosome Intracellular Ribonucleoprotein Complex
L	ribosomal protein S12 (4DV0:L)	TRNA Binding RNA Binding Structural Constituent of Ribosome RRNA Binding	Translation	Intracellular Ribosome Small Ribosomal Subunit Intracellular Ribonucleoprotein Complex
M	ribosomal protein S13 (4DV0:M)	TRNA Binding Nucleic Acid Binding RNA Binding Structural Constituent of Ribosome RRNA Binding	Translation	Intracellular Ribosome Intracellular Ribonucleoprotein Complex
N	ribosomal protein S14 (4DV0:N)	RNA Binding Structural Constituent of Ribosome RRNA Binding Metal Ion Binding	Translation	Intracellular Ribosome Intracellular Ribonucleoprotein Complex
O	ribosomal protein S15 (4DV0:O)	RNA Binding Structural Constituent of Ribosome RRNA Binding	Translation	Intracellular Ribosome Intracellular Ribonucleoprotein Complex
P	ribosomal protein S16 (4DV0:P)	Structural Constituent of Ribosome	Translation	Intracellular Ribosome Intracellular Ribonucleoprotein Complex
Q	ribosomal protein S17 (4DV0:Q)	RNA Binding Structural Constituent of Ribosome RRNA Binding	Translation	Intracellular Ribosome Intracellular Ribonucleoprotein Complex
R	ribosomal protein S18 (4DV0:R)	RNA Binding Structural Constituent of Ribosome RRNA Binding	Translation	Intracellular Ribosome Intracellular Ribonucleoprotein Complex
S	ribosomal protein S19 (4DV0:S)	RNA Binding Structural Constituent of Ribosome RRNA Binding	Translation	Ribosome Small Ribosomal Subunit Intracellular Ribonucleoprotein Complex
T	ribosomal protein S20 (4DV0:T)	RNA Binding Structural Constituent of Ribosome RRNA Binding	Translation	Intracellular Ribosome Intracellular Ribonucleoprotein Complex
U	ribosomal protein THX (4DV0:U)	RNA Binding RRNA Binding	none	Ribosome Intracellular Ribonucleoprotein Complex

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4DV0

Crystal structure of the Thermus thermophilus 30S ribosomal subunit with a 16S rRNA mutation, U20G

Macromolecule Annotations for the Entities in PDB 4DV0

Domain Annotation: CATH CATH Database (version 4.0.0) Homepage

Protein Family Annotation Pfam Database Homepage

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Protein Modification Annotation