9xtd

E.coli delta lepA 30S ribosomal subunit class B, body domain

Method: ELECTRON MICROSCOPY

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

Small ribosomal subunit protein uS4

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 12 RNA 1	RNA (1128-MER) × 1 Small ribosomal subunit protein uS5 × 1 （P0A7W3） Small ribosomal subunit protein bS6, non-modified isoform × 1 （P02358） Small ribosomal subunit protein uS8 × 1 （P0A7W7） Small ribosomal subunit protein uS11 × 1 （P0A7R9） Small ribosomal subunit protein uS12 × 1 （P0A7S3） Small ribosomal subunit protein uS15 × 1 （P0ADZ4） 30S ribosomal protein S16 × 1 （P0A7T3） Small ribosomal subunit protein uS17 × 1 （P0AG63） Small ribosomal subunit protein bS18 × 1 （P0A7T7） Small ribosomal subunit protein bS20 × 1 （P0A7U7） Small ribosomal subunit protein uS2 × 1 （P0A7V0） MAGNESIUM ION × 39 water × 9	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	2
Chains and sequence ranges	Author chain D； PDBConstruct 1–205； UniProt 2–206

Small ribosomal subunit protein uS5

OrganismNot specified

UniProt P0A7W3

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 12 RNA 1	RNA (1128-MER) × 1 Small ribosomal subunit protein uS4 × 1 （P0A7V8） Small ribosomal subunit protein bS6, non-modified isoform × 1 （P02358） Small ribosomal subunit protein uS8 × 1 （P0A7W7） Small ribosomal subunit protein uS11 × 1 （P0A7R9） Small ribosomal subunit protein uS12 × 1 （P0A7S3） Small ribosomal subunit protein uS15 × 1 （P0ADZ4） 30S ribosomal protein S16 × 1 （P0A7T3） Small ribosomal subunit protein uS17 × 1 （P0AG63） Small ribosomal subunit protein bS18 × 1 （P0A7T7） Small ribosomal subunit protein bS20 × 1 （P0A7U7） Small ribosomal subunit protein uS2 × 1 （P0A7V0） MAGNESIUM ION × 39 water × 9	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS5_ECO57
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain E； PDBConstruct 1–157； UniProt 10–166

Small ribosomal subunit protein bS6, non-modified isoform

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 12 RNA 1	RNA (1128-MER) × 1 Small ribosomal subunit protein uS4 × 1 （P0A7V8） Small ribosomal subunit protein uS5 × 1 （P0A7W3） Small ribosomal subunit protein uS8 × 1 （P0A7W7） Small ribosomal subunit protein uS11 × 1 （P0A7R9） Small ribosomal subunit protein uS12 × 1 （P0A7S3） Small ribosomal subunit protein uS15 × 1 （P0ADZ4） 30S ribosomal protein S16 × 1 （P0A7T3） Small ribosomal subunit protein uS17 × 1 （P0AG63） Small ribosomal subunit protein bS18 × 1 （P0A7T7） Small ribosomal subunit protein bS20 × 1 （P0A7U7） Small ribosomal subunit protein uS2 × 1 （P0A7V0） MAGNESIUM ION × 39 water × 9	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	4
Chains and sequence ranges	Author chain F； PDBConstruct 1–106； UniProt 1–106

Small ribosomal subunit protein uS8

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 12 RNA 1	RNA (1128-MER) × 1 Small ribosomal subunit protein uS4 × 1 （P0A7V8） Small ribosomal subunit protein uS5 × 1 （P0A7W3） Small ribosomal subunit protein bS6, non-modified isoform × 1 （P02358） Small ribosomal subunit protein uS11 × 1 （P0A7R9） Small ribosomal subunit protein uS12 × 1 （P0A7S3） Small ribosomal subunit protein uS15 × 1 （P0ADZ4） 30S ribosomal protein S16 × 1 （P0A7T3） Small ribosomal subunit protein uS17 × 1 （P0AG63） Small ribosomal subunit protein bS18 × 1 （P0A7T7） Small ribosomal subunit protein bS20 × 1 （P0A7U7） Small ribosomal subunit protein uS2 × 1 （P0A7V0） MAGNESIUM ION × 39 water × 9	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	5
Chains and sequence ranges	Author chain H； PDBConstruct 1–129； UniProt 2–130

Small ribosomal subunit protein uS11

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 12 RNA 1	RNA (1128-MER) × 1 Small ribosomal subunit protein uS4 × 1 （P0A7V8） Small ribosomal subunit protein uS5 × 1 （P0A7W3） Small ribosomal subunit protein bS6, non-modified isoform × 1 （P02358） Small ribosomal subunit protein uS8 × 1 （P0A7W7） Small ribosomal subunit protein uS12 × 1 （P0A7S3） Small ribosomal subunit protein uS15 × 1 （P0ADZ4） 30S ribosomal protein S16 × 1 （P0A7T3） Small ribosomal subunit protein uS17 × 1 （P0AG63） Small ribosomal subunit protein bS18 × 1 （P0A7T7） Small ribosomal subunit protein bS20 × 1 （P0A7U7） Small ribosomal subunit protein uS2 × 1 （P0A7V0） MAGNESIUM ION × 39 water × 9	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	6
Chains and sequence ranges	Author chain K； PDBConstruct 1–117； UniProt 13–129

Small ribosomal subunit protein uS12

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 12 RNA 1	RNA (1128-MER) × 1 Small ribosomal subunit protein uS4 × 1 （P0A7V8） Small ribosomal subunit protein uS5 × 1 （P0A7W3） Small ribosomal subunit protein bS6, non-modified isoform × 1 （P02358） Small ribosomal subunit protein uS8 × 1 （P0A7W7） Small ribosomal subunit protein uS11 × 1 （P0A7R9） Small ribosomal subunit protein uS15 × 1 （P0ADZ4） 30S ribosomal protein S16 × 1 （P0A7T3） Small ribosomal subunit protein uS17 × 1 （P0AG63） Small ribosomal subunit protein bS18 × 1 （P0A7T7） Small ribosomal subunit protein bS20 × 1 （P0A7U7） Small ribosomal subunit protein uS2 × 1 （P0A7V0） MAGNESIUM ION × 39 water × 9	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	7
Chains and sequence ranges	Author chain L； PDBConstruct 1–123； UniProt 2–124

Small ribosomal subunit protein uS15

OrganismNot specified

UniProt P0ADZ4

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 12 RNA 1	RNA (1128-MER) × 1 Small ribosomal subunit protein uS4 × 1 （P0A7V8） Small ribosomal subunit protein uS5 × 1 （P0A7W3） Small ribosomal subunit protein bS6, non-modified isoform × 1 （P02358） Small ribosomal subunit protein uS8 × 1 （P0A7W7） Small ribosomal subunit protein uS11 × 1 （P0A7R9） Small ribosomal subunit protein uS12 × 1 （P0A7S3） 30S ribosomal protein S16 × 1 （P0A7T3） Small ribosomal subunit protein uS17 × 1 （P0AG63） Small ribosomal subunit protein bS18 × 1 （P0A7T7） Small ribosomal subunit protein bS20 × 1 （P0A7U7） Small ribosomal subunit protein uS2 × 1 （P0A7V0） MAGNESIUM ION × 39 water × 9	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	8
Chains and sequence ranges	Author chain O； PDBConstruct 1–88； UniProt 2–89

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 12 RNA 1	RNA (1128-MER) × 1 Small ribosomal subunit protein uS4 × 1 （P0A7V8） Small ribosomal subunit protein uS5 × 1 （P0A7W3） Small ribosomal subunit protein bS6, non-modified isoform × 1 （P02358） Small ribosomal subunit protein uS8 × 1 （P0A7W7） Small ribosomal subunit protein uS11 × 1 （P0A7R9） Small ribosomal subunit protein uS12 × 1 （P0A7S3） Small ribosomal subunit protein uS15 × 1 （P0ADZ4） Small ribosomal subunit protein uS17 × 1 （P0AG63） Small ribosomal subunit protein bS18 × 1 （P0A7T7） Small ribosomal subunit protein bS20 × 1 （P0A7U7） Small ribosomal subunit protein uS2 × 1 （P0A7V0） MAGNESIUM ION × 39 water × 9	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	9
Chains and sequence ranges	Author chain P； PDBConstruct 1–82； UniProt 1–82

Small ribosomal subunit protein uS17

OrganismNot specified

UniProt P0AG63

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 12 RNA 1	RNA (1128-MER) × 1 Small ribosomal subunit protein uS4 × 1 （P0A7V8） Small ribosomal subunit protein uS5 × 1 （P0A7W3） Small ribosomal subunit protein bS6, non-modified isoform × 1 （P02358） Small ribosomal subunit protein uS8 × 1 （P0A7W7） Small ribosomal subunit protein uS11 × 1 （P0A7R9） Small ribosomal subunit protein uS12 × 1 （P0A7S3） Small ribosomal subunit protein uS15 × 1 （P0ADZ4） 30S ribosomal protein S16 × 1 （P0A7T3） Small ribosomal subunit protein bS18 × 1 （P0A7T7） Small ribosomal subunit protein bS20 × 1 （P0A7U7） Small ribosomal subunit protein uS2 × 1 （P0A7V0） MAGNESIUM ION × 39 water × 9	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	10
Chains and sequence ranges	Author chain Q； PDBConstruct 1–80； UniProt 4–83

Small ribosomal subunit protein bS18

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 12 RNA 1	RNA (1128-MER) × 1 Small ribosomal subunit protein uS4 × 1 （P0A7V8） Small ribosomal subunit protein uS5 × 1 （P0A7W3） Small ribosomal subunit protein bS6, non-modified isoform × 1 （P02358） Small ribosomal subunit protein uS8 × 1 （P0A7W7） Small ribosomal subunit protein uS11 × 1 （P0A7R9） Small ribosomal subunit protein uS12 × 1 （P0A7S3） Small ribosomal subunit protein uS15 × 1 （P0ADZ4） 30S ribosomal protein S16 × 1 （P0A7T3） Small ribosomal subunit protein uS17 × 1 （P0AG63） Small ribosomal subunit protein bS20 × 1 （P0A7U7） Small ribosomal subunit protein uS2 × 1 （P0A7V0） MAGNESIUM ION × 39 water × 9	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	11
Chains and sequence ranges	Author chain R； PDBConstruct 1–55； UniProt 20–74

Small ribosomal subunit protein bS20

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 12 RNA 1	RNA (1128-MER) × 1 Small ribosomal subunit protein uS4 × 1 （P0A7V8） Small ribosomal subunit protein uS5 × 1 （P0A7W3） Small ribosomal subunit protein bS6, non-modified isoform × 1 （P02358） Small ribosomal subunit protein uS8 × 1 （P0A7W7） Small ribosomal subunit protein uS11 × 1 （P0A7R9） Small ribosomal subunit protein uS12 × 1 （P0A7S3） Small ribosomal subunit protein uS15 × 1 （P0ADZ4） 30S ribosomal protein S16 × 1 （P0A7T3） Small ribosomal subunit protein uS17 × 1 （P0AG63） Small ribosomal subunit protein bS18 × 1 （P0A7T7） Small ribosomal subunit protein uS2 × 1 （P0A7V0） MAGNESIUM ION × 39 water × 9	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	12
Chains and sequence ranges	Author chain T； PDBConstruct 1–86； UniProt 2–87

Small ribosomal subunit protein uS2

OrganismNot specified

UniProt P0A7V0

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 12 RNA 1	RNA (1128-MER) × 1 Small ribosomal subunit protein uS4 × 1 （P0A7V8） Small ribosomal subunit protein uS5 × 1 （P0A7W3） Small ribosomal subunit protein bS6, non-modified isoform × 1 （P02358） Small ribosomal subunit protein uS8 × 1 （P0A7W7） Small ribosomal subunit protein uS11 × 1 （P0A7R9） Small ribosomal subunit protein uS12 × 1 （P0A7S3） Small ribosomal subunit protein uS15 × 1 （P0ADZ4） 30S ribosomal protein S16 × 1 （P0A7T3） Small ribosomal subunit protein uS17 × 1 （P0AG63） Small ribosomal subunit protein bS18 × 1 （P0A7T7） Small ribosomal subunit protein bS20 × 1 （P0A7U7） MAGNESIUM ION × 39 water × 9	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	13
Chains and sequence ranges	Author chain B； PDBConstruct 1–224； UniProt 4–227

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	9xtd
Deposition date deposition_date	2025-11-22
Structure title title	E.coli delta lepA 30S ribosomal subunit class B, body domain
Keywords keywords	30S subunit maturation, LepA, cryo-EM, ribosome assembly, RIBOSOME; RIBOSOME
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.

9xtd__assembly_1__model_1

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

Download this curve (.dat)

9xtd__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9xtd__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	57.02 Å
Rg (electron density)	57.44 Å
Total Rg	57.49 Å
Atom count	35638
Residues	2574
Excluded volume	545210 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9xtd__assembly_1__model_1`	tridecameric （13）	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 (15)

Entity 1 Entity 1 polymer

Description description	RNA (1128-MER)
Molecular weight formula_weight	499775.2 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	37507

AAAUUGAAGAGUUUGAUCAUGGCUCAGAUUGAACGCUGGCGGCAGGCCUAACACAUGCAAGUCGAACGGUAACAGGAAGAAGCUUGCUUCUUUGCUGACGAGUGGCGGACGGGUGAGUAAUGUCUGGGAAACUGCCUGAUGGAGGGGGAUAACUACUGGAAACGGUAGCUAAUACCGCAUAACGUCGCAAGACCAAAGAGGGGGACCUUCGGGCCUCUUGCCAUCGGAUGUGCCCAGAUGGGAUUAGCUAGUAGGUGGGGUAACGGCUCACCUAGGCGACGAUCCCUAGCUGGUCUGAGAGGAUGACCAGCCACACUGGAACUGAGACACGGUCCAGACUCCUACGGGAGGCAGCAGUGGGGAAUAUUGCACAAUGGGCGCAAGCCUGAUGCAGCCAUGCCGCGUGUAUGAAGAAGGCCUUCGGGUUGUAAAGUACUUUCAGCGGGGAGGAAGGGAGUAAAGUUAAUACCUUUGCUCAUUGACGUUACCCGCAGAAGAAGCACCGGCUAACUCCGUGCCAGCAGCCGCGGUAAUACGGAGGGUGCAAGCGUUAAUCGGAAUUACUGGGCGUAAAGCGCACGCAGGCGGUUUGUUAAGUCAGAUGUGAAAUCCCCGGGCUCAACCUGGGAACUGCAUCUGAUACUGGCAAGCUUGAGUCUCGUAGAGGGGGGUAGAAUUCCAGGUGUAGCGGUGAAAUGCGUAGAGAUCUGGAGGAAUACCGGUGGCGAAGGCGGCCCCCUGGACGAAGACUGACGCUCAGGUGCGAAAGCGUGGGGAGCAAACAGGAUUAGAUACCCUGGUAGUCCACGCCGUAAACGAUGUCGACUUGGAGGUUGUGCCCUUGAGGCGUGGCUUCCGGAGCUAACGCGUUAAGUCGACCGCCUGGGGAGUACGGCCGCAAGGUUAAAACUCAAAUGAAUUGACGGGGGCCCGCACAAGCGGUGGAGCAUGUGGUUUAAUUCGAUGCAACGCGAAGAACCUUACCUGGUCUUGACAUCCACGGAAGUUUUCAGAGAUGAGAAUGUGCCUUCGGGAACCGUGAGACAGGUGCUGCAUGGCUGUCGUCAGCUCGUGUUGUGAAAUGUUGGGUUAAGUCCCGCAACGAGCGCAACCCUUAUCCUUUGUUGCCAGCGGUCCGGCCGGGAACUCAAAGGAGACUGCCAGUGAUAAACUGGAGGAAGGUGGGGAUGACGUCAAGUCAUCAUGGCCCUUACGACCAGGGCUACACACGUGCUACAAUGGCGCAUACAAAGAGAAGCGACCUCGCGAGAGCAAGCGGACCUCAUAAAGUGCGUCGUAGUCCGGAUUGGAGUCUGCAACUCGACUCCAUGAAGUCGGAAUCGCUAGUAAUCGUGGAUCAGAAUGCCACGGUGAAUACGUUCCCGGGCCUUGUACACACCGCCCGUCACACCAUGGGAGUGGGUUGCAAAAGAAGUAGGUAGCUUAACCUUCGGGAGGGCGCUUACCACUUUGUGAUUCAUGACUGGGGUGAAGUCGUAACAAGGUAACCGUAGGGGAACCUGCGGUUGGAUCACCUCCUUA

Entity 2 Entity 2 polymer

Description description	Small ribosomal subunit protein uS4
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 3 Entity 3 polymer

Description description	Small ribosomal subunit protein uS5
Molecular weight formula_weight	16532.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E

ELQEKLIAVNRVSKTVKGGRIFSFTALTVVGDGNGRVGFGYGKAREVPAAIQKAMEKARRNMINVALNNGTLQHPVKGVHTGSRVFMQPASEGTGIIAGGAMRAVLEVAGVHNVLAKAYGSTNPINVVRATIDGLENMNSPEMVAAKRGKSVEEILG

Entity 4 Entity 4 polymer

Description description	Small ribosomal subunit protein bS6, non-modified isoform
Molecular weight formula_weight	12326.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	F

MRHYEIVFMVHPDQSEQVPGMIERYTAAITGAEGKIHRLEDWGRRQLAYPINKLHKAHYVLMNVEAPQEVIDELETTFRFNDAVIRSMVMRTKHAVTEASPMVKAK

Entity 5 Entity 5 polymer

Description description	Small ribosomal subunit protein uS8
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 6 Entity 6 polymer

Description description	Small ribosomal subunit protein uS11
Molecular weight formula_weight	12487.2 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	K

RKQVSDGVAHIHASFNNTIVTITDRQGNALGWATAGGSGFRGSRKSTPFAAQVAAERCADAVKEYGIKNLEVMVKGPGPGRESTIRALNAAGFRITNITDVTPIPHNGCRPPKKRRV

Entity 7 Entity 7 polymer

Description description	Small ribosomal subunit protein uS12
Molecular weight formula_weight	13683.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	L

ATVNQLVRKPRARKVAKSNVPALEACPQKRGVCTRVYTTTPKKPNSALRKVCRVRLTNGFEVTSYIGGEGHNLQEHSVILIRGGRVKXLPGVRYHTVRGALDCSGVKDRKQARSKYGVKRPKA

Entity 8 Entity 8 polymer

Description description	Small ribosomal subunit protein uS15
Molecular weight formula_weight	10159.6 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	O

SLSTEATAKIVSEFGRDANDTGSTEVQVALLTAQINHLQGHFAEHKKDHHSRRGLLRMVSQRRKLLDYLKRKDVARYTQLIERLGLRR

Entity 9 Entity 9 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 10 Entity 10 polymer

Description description	Small ribosomal subunit protein uS17
Molecular weight formula_weight	9263.9 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	Q

KIRTLQGRVVSDKMEKSIVVAIERFVKHPIYGKFIKRTTKLHVHDENNECGIGDVVEIRECRPLSKTKSWTLVRVVEKAV

Entity 11 Entity 11 polymer

Description description	Small ribosomal subunit protein bS18
Molecular weight formula_weight	6466.5 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	R

EIDYKDIATLKNYITESGKIVPSRITGTRAKYQRQLARAIKRARYLSLLPYTDRH

Entity 12 Entity 12 polymer

Description description	Small ribosomal subunit protein bS20
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 13 Entity 13 polymer

Description description	Small ribosomal subunit protein uS2
Molecular weight formula_weight	24971.8 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

VSMRDMLKAGVHFGHQTRYWNPKMKPFIFGARNKVHIINLEKTVPMFNEALAELNKIASRKGKILFVGTKRAASEAVKDAALSCDQFFVNHRWLGGMLTNWKTVRQSIKRLKDLETQSQDGTFDKLTKKEALMRTRELEKLENSLGGIKDMGGLPDALFVIDADHEHIAIKEANNLGIPVFAIVDTNSDPDGVDFVIPGNDDAIRAVTLYLGAVAATVREGRSQ

Entity 14 Entity 14 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	39

Entity 15 Entity 15 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	1869

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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	—

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

Resolution resolution	2.26 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	269839

E.coli delta lepA 30S ribosomal subunit class B, body domain

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

Small ribosomal subunit protein uS4

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Small ribosomal subunit protein uS5

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Small ribosomal subunit protein bS6, non-modified isoform

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Small ribosomal subunit protein uS8

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Small ribosomal subunit protein uS11

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Small ribosomal subunit protein uS12

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Small ribosomal subunit protein uS15

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 S16

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Small ribosomal subunit protein uS17

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Small ribosomal subunit protein bS18

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer