4adv

Structure of the E. coli methyltransferase KsgA bound to the E. coli 30S ribosomal subunit

Method: ELECTRON MICROSCOPY

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1. Protein Identity and Related Structures Protein Identity & Related Structures

30S RIBOSOMAL PROTEIN S2

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS2_ECOLI
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–240； UniProt 1–240

30S RIBOSOMAL PROTEIN S3

OrganismNot specified

UniProt P0A7V3

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS3_ECOLI
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain C； PDBConstruct 1–232； UniProt 1–232

30S RIBOSOMAL PROTEIN S4

OrganismNot specified

UniProt P0A7V8

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS4_ECOLI
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain D； PDBConstruct 1–205； UniProt 1–205

30S RIBOSOMAL PROTEIN S5

OrganismNot specified

UniProt P0A7W1

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS5_ECOLI
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain E； PDBConstruct 1–166； UniProt 1–166

30S RIBOSOMAL PROTEIN S6

OrganismNot specified

UniProt P02358

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS6_ECOLI
Isoform	—
PDB entities	6
Chains and sequence ranges	Author chain F； PDBConstruct 1–135； UniProt 1–135

30S RIBOSOMAL PROTEIN S7

OrganismNot specified

UniProt P02359

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS7_ECOLI
Isoform	—
PDB entities	7
Chains and sequence ranges	Author chain G； PDBConstruct 1–178； UniProt 1–178

30S RIBOSOMAL PROTEIN S8

OrganismNot specified

UniProt P0A7W7

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS8_ECOLI
Isoform	—
PDB entities	8
Chains and sequence ranges	Author chain H； PDBConstruct 1–129； UniProt 1–129

30S RIBOSOMAL PROTEIN S9

OrganismNot specified

UniProt P0A7X3

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS9_ECOLI
Isoform	—
PDB entities	9
Chains and sequence ranges	Author chain I； PDBConstruct 1–129； UniProt 1–129

30S RIBOSOMAL PROTEIN S10

OrganismNot specified

UniProt P0A7R5

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS10_ECOLI
Isoform	—
PDB entities	10
Chains and sequence ranges	Author chain J； PDBConstruct 1–103； UniProt 1–103

30S RIBOSOMAL PROTEIN S11

OrganismNot specified

UniProt P0A7R9

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS11_ECOLI
Isoform	—
PDB entities	11
Chains and sequence ranges	Author chain K； PDBConstruct 1–128； UniProt 1–128

30S RIBOSOMAL PROTEIN S12

OrganismNot specified

UniProt P0A7S3

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS12_ECOLI
Isoform	—
PDB entities	12
Chains and sequence ranges	Author chain L； PDBConstruct 1–123； UniProt 1–123

30S RIBOSOMAL PROTEIN S13

OrganismNot specified

UniProt P0A7S9

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS13_ECOLI
Isoform	—
PDB entities	13
Chains and sequence ranges	Author chain M； PDBConstruct 1–117； UniProt 1–117

30S RIBOSOMAL PROTEIN S14

OrganismNot specified

UniProt P02370

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS14_ECOLI
Isoform	—
PDB entities	14
Chains and sequence ranges	Author chain N； PDBConstruct 1–100； UniProt 1–100

30S RIBOSOMAL PROTEIN S15

OrganismNot specified

UniProt P02371

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS15_ECOLI
Isoform	—
PDB entities	15
Chains and sequence ranges	Author chain O； PDBConstruct 1–89； UniProt 1–89

30S RIBOSOMAL PROTEIN S16

OrganismNot specified

UniProt P0A7T3

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS16_ECOLI
Isoform	—
PDB entities	16
Chains and sequence ranges	Author chain P； PDBConstruct 1–82； UniProt 1–82

30S RIBOSOMAL PROTEIN S17

OrganismNot specified

UniProt P02373

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS17_ECOLI
Isoform	—
PDB entities	17
Chains and sequence ranges	Author chain Q； PDBConstruct 1–83； UniProt 1–83

30S RIBOSOMAL PROTEIN S18

OrganismNot specified

UniProt P0A7T7

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS18_ECOLI
Isoform	—
PDB entities	18
Chains and sequence ranges	Author chain R； PDBConstruct 1–74； UniProt 1–74

30S RIBOSOMAL PROTEIN S19

OrganismNot specified

UniProt P0A7U3

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS19_ECOLI
Isoform	—
PDB entities	19
Chains and sequence ranges	Author chain S； PDBConstruct 1–91； UniProt 1–91

30S RIBOSOMAL PROTEIN S20

OrganismNot specified

UniProt P0A7U7

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS20_ECOLI
Isoform	—
PDB entities	20
Chains and sequence ranges	Author chain T； PDBConstruct 1–86； UniProt 1–86

30S RIBOSOMAL PROTEIN S21

OrganismNot specified

UniProt P68679

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A × 1 （P06992） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS21_ECOLI
Isoform	—
PDB entities	21
Chains and sequence ranges	Author chain U； PDBConstruct 1–71； UniProt 1–71

RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A

ESCHERICHIA COLI

UniProt P06992

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 21 RNA 1	16S RIBOSOMAL RNA × 1 30S RIBOSOMAL PROTEIN S2 × 1 （P0A7V0） 30S RIBOSOMAL PROTEIN S3 × 1 （P0A7V3） 30S RIBOSOMAL PROTEIN S4 × 1 （P0A7V8） 30S RIBOSOMAL PROTEIN S5 × 1 （P0A7W1） 30S RIBOSOMAL PROTEIN S6 × 1 （P02358） 30S RIBOSOMAL PROTEIN S7 × 1 （P02359） 30S RIBOSOMAL PROTEIN S8 × 1 （P0A7W7） 30S RIBOSOMAL PROTEIN S9 × 1 （P0A7X3） 30S RIBOSOMAL PROTEIN S10 × 1 （P0A7R5） 30S RIBOSOMAL PROTEIN S11 × 1 （P0A7R9） 30S RIBOSOMAL PROTEIN S12 × 1 （P0A7S3） 30S RIBOSOMAL PROTEIN S13 × 1 （P0A7S9） 30S RIBOSOMAL PROTEIN S14 × 1 （P02370） 30S RIBOSOMAL PROTEIN S15 × 1 （P02371） 30S RIBOSOMAL PROTEIN S16 × 1 （P0A7T3） 30S RIBOSOMAL PROTEIN S17 × 1 （P02373） 30S RIBOSOMAL PROTEIN S18 × 1 （P0A7T7） 30S RIBOSOMAL PROTEIN S19 × 1 （P0A7U3） 30S RIBOSOMAL PROTEIN S20 × 1 （P0A7U7） 30S RIBOSOMAL PROTEIN S21 × 1 （P68679） water × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RSMA_ECOLI
Isoform	—
PDB entities	22
Chains and sequence ranges	Author chain V； PDBConstruct 1–252； UniProt 17–268

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	4adv
Deposition date deposition_date	2012-01-03
Structure title title	Structure of the E. coli methyltransferase KsgA bound to the E. coli 30S ribosomal subunit
Keywords keywords	TRANSLATION, RIBOSOME BIOGENESIS, SMALL RIBOSOMAL SUBUNIT; TRANSLATION
Experimental Method method	ELECTRON MICROSCOPY

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

4adv__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

4adv__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4adv__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	69.08 Å
Rg (electron density)	68.98 Å
Total Rg	69.06 Å
Atom count	50749
Residues	4015
Excluded volume	792500 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4adv__assembly_1__model_1`	22-meric （22）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (23)

Entity 1 Entity 1 polymer

Description description	16S RIBOSOMAL RNA
Molecular weight formula_weight	499690.0 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polyribonucleotide
Chain IDs strand_id	A
Atom count atom_count	50888

AAAUUGAAGAGUUUGAUCAUGGCUCAGAUUGAACGCUGGCGGCAGGCCUAACACAUGCAAGUCGAACGGUAACAGGAAGAAGCUUGCUUCUUUGCUGACGAGUGGCGGACGGGUGAGUAAUGUCUGGGAAACUGCCUGAUGGAGGGGGAUAACUACUGGAAACGGUAGCUAAUACCGCAUAACGUCGCAAGACCAAAGAGGGGGACCUUCGGGCCUCUUGCCAUCGGAUGUGCCCAGAUGGGAUUAGCUAGUAGGUGGGGUAACGGCUCACCUAGGCGACGAUCCCUAGCUGGUCUGAGAGGAUGACCAGCCACACUGGAACUGAGACACGGUCCAGACUCCUACGGGAGGCAGCAGUGGGGAAUAUUGCACAAUGGGCGCAAGCCUGAUGCAGCCAUGCCGCGUGUAUGAAGAAGGCCUUCGGGUUGUAAAGUACUUUCAGCGGGGAGGAAGGGAGUAAAGUUAAUACCUUUGCUCAUUGACGUUACCCGCAGAAGAAGCACCGGCUAACUCCGUGCCAGCAGCCGCGGUAAUACGGAGGGUGCAAGCGUUAAUCGGAAUUACUGGGCGUAAAGCGCACGCAGGCGGUUUGUUAAGUCAGAUGUGAAAUCCCCGGGCUCAACCUGGGAACUGCAUCUGAUACUGGCAAGCUUGAGUCUCGUAGAGGGGGGUAGAAUUCCAGGUGUAGCGGUGAAAUGCGUAGAGAUCUGGAGGAAUACCGGUGGCGAAGGCGGCCCCCUGGACGAAGACUGACGCUCAGGUGCGAAAGCGUGGGGAGCAAACAGGAUUAGAUACCCUGGUAGUCCACGCCGUAAACGAUGUCGACUUGGAGGUUGUGCCCUUGAGGCGUGGCUUCCGGAGCUAACGCGUUAAGUCGACCGCCUGGGGAGUACGGCCGCAAGGUUAAAACUCAAAUGAAUUGACGGGGGCCCGCACAAGCGGUGGAGCAUGUGGUUUAAUUCGAUGCAACGCGAAGAACCUUACCUGGUCUUGACAUCCACGGAAGUUUUCAGAGAUGAGAAUGUGCCUUCGGGAACCGUGAGACAGGUGCUGCAUGGCUGUCGUCAGCUCGUGUUGUGAAAUGUUGGGUUAAGUCCCGCAACGAGCGCAACCCUUAUCCUUUGUUGCCAGCGGUCCGGCCGGGAACUCAAAGGAGACUGCCAGUGAUAAACUGGAGGAAGGUGGGGAUGACGUCAAGUCAUCAUGGCCCUUACGACCAGGGCUACACACGUGCUACAAUGGCGCAUACAAAGAGAAGCGACCUCGCGAGAGCAAGCGGACCUCAUAAAGUGCGUCGUAGUCCGGAUUGGAGUCUGCAACUCGACUCCAUGAAGUCGGAAUCGCUAGUAAUCGUGGAUCAGAAUGCCACGGUGAAUACGUUCCCGGGCCUUGUACACACCGCCCGUCACACCAUGGGAGUGGGUUGCAAAAGAAGUAGGUAGCUUAACCUUCGGGAGGGCGCUUACCACUUUGUGAUUCAUGACUGGGGUGAAGUCGUAACAAGGUAACCGUAGGGGAACCUGCGGUUGGAUCACCUCCUUA

Entity 2 Entity 2 polymer

Description description	30S RIBOSOMAL PROTEIN S2
Molecular weight formula_weight	26650.5 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

ATVSMRDMLKAGVHFGHQTRYWNPKMKPFIFGARNKVHIINLEKTVPMFNEALAELNKIASRKGKILFVGTKRAASEAVKDAALSCDQFFVNHRWLGGMLTNWKTVRQSIKRLKDLETQSQDGTFDKLTKKEALMRTRELEKLENSLGGIKDMGGLPDALFVIDADHEHIAIKEANNLGIPVFAIVDTNSDPDGVDFVIPGNDDAIRAVTLYLGAVAATVREGRSQDLASQAEESFVEAE

Entity 3 Entity 3 polymer

Description description	30S RIBOSOMAL PROTEIN S3
Molecular weight formula_weight	25900.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C

GQKVHPNGIRLGIVKPWNSTWFANTKEFADNLDSDFKVRQYLTKELAKASVSRIVIERPAKSIRVTIHTARPGIVIGKKGEDVEKLRKVVADIAGVPAQINIAEVRKPELDAKLVADSITSQLERRVMFRRAMKRAVQNAMRLGAKGIKVEVSGRLGGAEIARTEWYREGRVPLHTLRADIDYNTSEAHTTYGVIGVKVWIFKGEILGGMAAVEQPEKPAAQPKKQQRKGRK

Entity 4 Entity 4 polymer

Description description	30S RIBOSOMAL PROTEIN S4
Molecular weight formula_weight	23383.0 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D

ARYLGPKLKLSRREGTDLFLKSGVRAIDTKCKIEQAPGQHGARKPRLSDYGVQLREKQKVRRIYGVLERQFRNYYKEAARLKGNTGENLLALLEGRLDNVVYRMGFGATRAEARQLVSHKAIMVNGRVVNIASYQVSPNDVVSIREKAKKQSRVKAALELAEQREKPTWLEVDAGKMEGTFKRKPERSDLSADINEHLIVELYSK

Entity 5 Entity 5 polymer

Description description	30S RIBOSOMAL PROTEIN S5
Molecular weight formula_weight	17498.2 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E

AHIEKQAGELQEKLIAVNRVSKTVKGGRIFSFTALTVVGDGNGRVGFGYGKAREVPAAIQKAMEKARRNMINVALNNGTLQHPVKGVHTGSRVFMQPASEGTGIIAGGAMRAVLEVAGVHNVLAKAYGSTNPINVVRATIDGLENMNSPEMVAAKRGKSVEEILGK

Entity 6 Entity 6 polymer

Description description	30S RIBOSOMAL PROTEIN S6
Molecular weight formula_weight	15727.5 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	F

MRHYEIVFMVHPDQSEQVPGMIERYTAAITGAEGKIHRLEDWGRRQLAYPINKLHKAHYVLMNVEAPQEVIDELETTFRFNDAVIRSMVMRTKHAVTEASPMVKAKDERRERRDDFANETADDAEAGDSEEEEEE

Entity 7 Entity 7 polymer

Description description	30S RIBOSOMAL PROTEIN S7
Molecular weight formula_weight	19924.0 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	G

PRRRVIGQRKILPDPKFGSELLAKFVNILMVDGKKSTAESIVYSALETLAQRSGKSELEAFEVALENVRPTVEVKSRRVGGSTYQVPVEVRPVRRNALAMRWIVEAARKRGDKSMALRLANELSDAAENKGTAVKKREDVHRMAEANKAFAHYRWLSLRSFSHQAGASSKQPALGYLN

Entity 8 Entity 8 polymer

Description description	30S RIBOSOMAL PROTEIN S8
Molecular weight formula_weight	14015.4 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	H

SMQDPIADMLTRIRNGQAANKAAVTMPSSKLKVAIANVLKEEGFIEDFKVEGDTKPELELTLKYFQGKAVVESIQRVSRPGLRIYKRKDELPKVMAGLGIAVVSTSKGVMTDRAARQAGLGGEIICYVA

Entity 9 Entity 9 polymer

Description description	30S RIBOSOMAL PROTEIN S9
Molecular weight formula_weight	14755.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	I

AENQYYGTGRRKSSAARVFIKPGNGKIVINQRSLEQYFGRETARMVVRQPLELVDMVEKLDLYITVKGGGISGQAGAIRHGITRALMEYDESLRSELRKAGFVTRDARQVERKKVGLRKARRRPQFSKR

Entity 10 Entity 10 polymer

Description description	30S RIBOSOMAL PROTEIN S10
Molecular weight formula_weight	11755.6 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	J

MQNQRIRIRLKAFDHRLIDQATAEIVETAKRTGAQVRGPIPLPTRKERFTVLISPHVNKDARDQYEIRTHLRLVDIVEPTEKTVDALMRLDLAAGVDVQISLG

Entity 11 Entity 11 polymer

Description description	30S RIBOSOMAL PROTEIN S11
Molecular weight formula_weight	13739.8 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	K

AKAPIRARKRVRKQVSDGVAHIHASFNNTIVTITDRQGNALGWATAGGSGFRGSRKSTPFAAQVAAERCADAVKEYGIKNLEVMVKGPGPGRESTIRALNAAGFRITNITDVTPIPHNGCRPPKKRRV

Entity 12 Entity 12 polymer

Description description	30S RIBOSOMAL PROTEIN S12
Molecular weight formula_weight	13637.0 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	L

ATVNQLVRKPRARKVAKSNVPALEACPQKRGVCTRVYTTTPKKPNSALRKVCRVRLTNGFEVTSYIGGEGHNLQEHSVILIRGGRVKDLPGVRYHTVRGALDCSGVKDRKQARSKYGVKRPKA

Entity 13 Entity 13 polymer

Description description	30S RIBOSOMAL PROTEIN S13
Molecular weight formula_weight	12997.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	M

ARIAGINIPDHKHAVIALTSIYGVGKTRSKAILAAAGIAEDVKISELSEGQIDTLRDEVAKFVVEGDLRREISMSIKRLMDLGCYRGLRHRRGLPVRGQRTKTNARTRKGPRKPIKK

Entity 14 Entity 14 polymer

Description description	30S RIBOSOMAL PROTEIN S14
Molecular weight formula_weight	11475.4 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	N

AKQSMKAREVKRVALADKYFAKRAELKAIISDVNASDEDRWNAVLKLQTLPRDSSPSRQRNRCRQTGRPHGFLRKFGLSRIKVREAAMRGEIPGLKKASW

Entity 15 Entity 15 polymer

Description description	30S RIBOSOMAL PROTEIN S15
Molecular weight formula_weight	10319.9 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	O

MSLSTEATAKIVSEFGRDANDTGSTEVQVALLTAQINHLQGHFAEHKKDHHSRRGLLRMVSQRRKLLDYLKRKDVARYTRLIERLGLRR

Entity 16 Entity 16 polymer

Description description	30S RIBOSOMAL PROTEIN S16
Molecular weight formula_weight	9207.6 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	P

MVTIRLARHGAKKRPFYQVVVADSRNARNGRFIERVGFFNPIASEKEEGTRLDLDRIAHWVGQGATISDRVAALIKEVNKAA

Entity 17 Entity 17 polymer

Description description	30S RIBOSOMAL PROTEIN S17
Molecular weight formula_weight	9593.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	Q

TDKIRTLQGRVVSDKMEKSIVVAIERFVKHPIYGKFIKRTTKLHVHDENNECGIGDVVEIRECRPLSKTKSWTLVRVVEKAVL

Entity 18 Entity 18 polymer

Description description	30S RIBOSOMAL PROTEIN S18
Molecular weight formula_weight	8874.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	R

ARYFRRRKFCRFTAEGVQEIDYKDIATLKNYITESGKIVPSRITGTRAKYQRQLARAIKRARYLSLLPYTDRHQ

Entity 19 Entity 19 polymer

Description description	30S RIBOSOMAL PROTEIN S19
Molecular weight formula_weight	10324.2 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	S

PRSLKKGPFIDLHLLKKVEKAVESGDKKPLRTWSRRSTIFPNMIGLTIAVHNGRQHVPVFVTDEMVGHKLGEFAPTRTYRGHAADKKAKKK

Entity 20 Entity 20 polymer

Description description	30S RIBOSOMAL PROTEIN S20
Molecular weight formula_weight	9577.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	T

ANIKSAKKRAIQSEKARKHNASRRSMMRTFIKKVYAAIEAGDKAAAQKAFNEMQPIVDRQAAKGLIHKNKAARHKANLTAQINKLA

Entity 21 Entity 21 polymer

Description description	30S RIBOSOMAL PROTEIN S21
Molecular weight formula_weight	8524.0 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	U

MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKLARENARRTRLY

Entity 22 Entity 22 polymer

Description description	RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE A
Molecular weight formula_weight	27988.3 kDa
EC 编号 ec_number	2.1.1.182
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	V

QNFLNDQFVIDSIVSAINPQKGQAMVEIGPGLAALTEPVGERLDQLTVIELDRDLAARLQTHPFLGPKLTIYQQDAMTFNFGELAEKMGQPLRVFGNLPYNISTPLMFHLFSYTDAIADMHFMLQKEVVNRLVAGPNSKAYGRLSVMAQYYCNVIPVLEVPPSAFTPPPKVDSAVVRLVPHATMPHPVKDVRVLSRITTEAFNQRRKTIRNSLGNLFSVEVLTGMGIDPAMRAENISVAQYCQMANYLAENA

Source Source

Source organism organism	ESCHERICHIA COLI
NCBI taxonomy ID ncbi_taxonomy_id	562
Host organism host_organism	ESCHERICHIA COLI

Entity 23 Entity 23 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	139

▶

Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	1

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	13.500 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	—
R_work r_work	—
R_free r_free	—

Resolution resolution	13.50 Å
Resolution测定Method resolution_method	ANGULAR RECONSTITUTION, PROJECTION MATCHING
颗粒数 num_particles	23343

Structure of the E. coli methyltransferase KsgA bound to the E. coli 30S ribosomal subunit

1. Protein Identity and Related Structures Protein Identity & Related Structures

30S RIBOSOMAL PROTEIN S2

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S RIBOSOMAL PROTEIN S3

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S RIBOSOMAL PROTEIN S4

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S RIBOSOMAL PROTEIN S5

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S RIBOSOMAL PROTEIN S6

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S RIBOSOMAL PROTEIN S7

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S RIBOSOMAL PROTEIN S8

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S RIBOSOMAL PROTEIN S9

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S RIBOSOMAL PROTEIN S10

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S RIBOSOMAL PROTEIN S11

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer