9sdq

Cryo-EM structure of the Arabidopsis thaliana 40S ribosomal subunit (Head)

Method: ELECTRON MICROSCOPY

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

Small ribosomal subunit protein uS3z

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 (500-MER) × 1 Small ribosomal subunit protein uS7z × 1 （Q9ZUT9） Small ribosomal subunit protein uS19x × 1 （Q9FY64） Small ribosomal subunit protein uS9z × 1 （Q9SK22） Small ribosomal subunit protein uS13z/uS13y/uS13x × 1 （P34788） Small ribosomal subunit protein eS19x × 1 （Q9FNP8） Small ribosomal subunit protein uS10z/uS10x × 1 （P49200） Small ribosomal subunit protein eS28x × 1 （P34789） Small ribosomal subunit protein uS14z/uS14y/uS14x × 1 （Q680P8） Small ribosomal subunit protein eS25y × 1 （Q9SIK2） Small ribosomal subunit protein eS10x × 1 （Q9LTF2） Small ribosomal subunit protein eS17w × 1 （Q9LZ17） POTASSIUM ION × 3 MAGNESIUM ION × 1 ZINC ION × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS3A_ARATH
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain BD； PDBConstruct 1–250； UniProt 1–250

Small ribosomal subunit protein uS7z

OrganismNot specified

UniProt Q9ZUT9

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 (500-MER) × 1 Small ribosomal subunit protein uS3z × 1 （Q9SIP7） Small ribosomal subunit protein uS19x × 1 （Q9FY64） Small ribosomal subunit protein uS9z × 1 （Q9SK22） Small ribosomal subunit protein uS13z/uS13y/uS13x × 1 （P34788） Small ribosomal subunit protein eS19x × 1 （Q9FNP8） Small ribosomal subunit protein uS10z/uS10x × 1 （P49200） Small ribosomal subunit protein eS28x × 1 （P34789） Small ribosomal subunit protein uS14z/uS14y/uS14x × 1 （Q680P8） Small ribosomal subunit protein eS25y × 1 （Q9SIK2） Small ribosomal subunit protein eS10x × 1 （Q9LTF2） Small ribosomal subunit protein eS17w × 1 （Q9LZ17） POTASSIUM ION × 3 MAGNESIUM ION × 1 ZINC ION × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS51_ARATH
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain BF； PDBConstruct 1–207； UniProt 1–207

Small ribosomal subunit protein uS19x

OrganismNot specified

UniProt Q9FY64

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 (500-MER) × 1 Small ribosomal subunit protein uS3z × 1 （Q9SIP7） Small ribosomal subunit protein uS7z × 1 （Q9ZUT9） Small ribosomal subunit protein uS9z × 1 （Q9SK22） Small ribosomal subunit protein uS13z/uS13y/uS13x × 1 （P34788） Small ribosomal subunit protein eS19x × 1 （Q9FNP8） Small ribosomal subunit protein uS10z/uS10x × 1 （P49200） Small ribosomal subunit protein eS28x × 1 （P34789） Small ribosomal subunit protein uS14z/uS14y/uS14x × 1 （Q680P8） Small ribosomal subunit protein eS25y × 1 （Q9SIK2） Small ribosomal subunit protein eS10x × 1 （Q9LTF2） Small ribosomal subunit protein eS17w × 1 （Q9LZ17） POTASSIUM ION × 3 MAGNESIUM ION × 1 ZINC ION × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS154_ARATH
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain BP； PDBConstruct 1–152； UniProt 1–152

Small ribosomal subunit protein uS9z

OrganismNot specified

UniProt Q9SK22

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 (500-MER) × 1 Small ribosomal subunit protein uS3z × 1 （Q9SIP7） Small ribosomal subunit protein uS7z × 1 （Q9ZUT9） Small ribosomal subunit protein uS19x × 1 （Q9FY64） Small ribosomal subunit protein uS13z/uS13y/uS13x × 1 （P34788） Small ribosomal subunit protein eS19x × 1 （Q9FNP8） Small ribosomal subunit protein uS10z/uS10x × 1 （P49200） Small ribosomal subunit protein eS28x × 1 （P34789） Small ribosomal subunit protein uS14z/uS14y/uS14x × 1 （Q680P8） Small ribosomal subunit protein eS25y × 1 （Q9SIK2） Small ribosomal subunit protein eS10x × 1 （Q9LTF2） Small ribosomal subunit protein eS17w × 1 （Q9LZ17） POTASSIUM ION × 3 MAGNESIUM ION × 1 ZINC ION × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS161_ARATH
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain BQ； PDBConstruct 1–146； UniProt 1–146

Small ribosomal subunit protein uS13z/uS13y/uS13x

OrganismNot specified

UniProt P34788

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 (500-MER) × 1 Small ribosomal subunit protein uS3z × 1 （Q9SIP7） Small ribosomal subunit protein uS7z × 1 （Q9ZUT9） Small ribosomal subunit protein uS19x × 1 （Q9FY64） Small ribosomal subunit protein uS9z × 1 （Q9SK22） Small ribosomal subunit protein eS19x × 1 （Q9FNP8） Small ribosomal subunit protein uS10z/uS10x × 1 （P49200） Small ribosomal subunit protein eS28x × 1 （P34789） Small ribosomal subunit protein uS14z/uS14y/uS14x × 1 （Q680P8） Small ribosomal subunit protein eS25y × 1 （Q9SIK2） Small ribosomal subunit protein eS10x × 1 （Q9LTF2） Small ribosomal subunit protein eS17w × 1 （Q9LZ17） POTASSIUM ION × 3 MAGNESIUM ION × 1 ZINC ION × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS18_ARATH
Isoform	—
PDB entities	6
Chains and sequence ranges	Author chain BS； PDBConstruct 1–152； UniProt 1–152

Small ribosomal subunit protein eS19x

OrganismNot specified

UniProt Q9FNP8

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 (500-MER) × 1 Small ribosomal subunit protein uS3z × 1 （Q9SIP7） Small ribosomal subunit protein uS7z × 1 （Q9ZUT9） Small ribosomal subunit protein uS19x × 1 （Q9FY64） Small ribosomal subunit protein uS9z × 1 （Q9SK22） Small ribosomal subunit protein uS13z/uS13y/uS13x × 1 （P34788） Small ribosomal subunit protein uS10z/uS10x × 1 （P49200） Small ribosomal subunit protein eS28x × 1 （P34789） Small ribosomal subunit protein uS14z/uS14y/uS14x × 1 （Q680P8） Small ribosomal subunit protein eS25y × 1 （Q9SIK2） Small ribosomal subunit protein eS10x × 1 （Q9LTF2） Small ribosomal subunit protein eS17w × 1 （Q9LZ17） POTASSIUM ION × 3 MAGNESIUM ION × 1 ZINC ION × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS193_ARATH
Isoform	—
PDB entities	7
Chains and sequence ranges	Author chain BT； PDBConstruct 1–142； UniProt 1–142

Small ribosomal subunit protein uS10z/uS10x

OrganismNot specified

UniProt P49200

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 (500-MER) × 1 Small ribosomal subunit protein uS3z × 1 （Q9SIP7） Small ribosomal subunit protein uS7z × 1 （Q9ZUT9） Small ribosomal subunit protein uS19x × 1 （Q9FY64） Small ribosomal subunit protein uS9z × 1 （Q9SK22） Small ribosomal subunit protein uS13z/uS13y/uS13x × 1 （P34788） Small ribosomal subunit protein eS19x × 1 （Q9FNP8） Small ribosomal subunit protein eS28x × 1 （P34789） Small ribosomal subunit protein uS14z/uS14y/uS14x × 1 （Q680P8） Small ribosomal subunit protein eS25y × 1 （Q9SIK2） Small ribosomal subunit protein eS10x × 1 （Q9LTF2） Small ribosomal subunit protein eS17w × 1 （Q9LZ17） POTASSIUM ION × 3 MAGNESIUM ION × 1 ZINC ION × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS201_ARATH
Isoform	—
PDB entities	8
Chains and sequence ranges	Author chain BU； PDBConstruct 1–124； UniProt 1–124

Small ribosomal subunit protein eS28x

OrganismNot specified

UniProt P34789

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 (500-MER) × 1 Small ribosomal subunit protein uS3z × 1 （Q9SIP7） Small ribosomal subunit protein uS7z × 1 （Q9ZUT9） Small ribosomal subunit protein uS19x × 1 （Q9FY64） Small ribosomal subunit protein uS9z × 1 （Q9SK22） Small ribosomal subunit protein uS13z/uS13y/uS13x × 1 （P34788） Small ribosomal subunit protein eS19x × 1 （Q9FNP8） Small ribosomal subunit protein uS10z/uS10x × 1 （P49200） Small ribosomal subunit protein uS14z/uS14y/uS14x × 1 （Q680P8） Small ribosomal subunit protein eS25y × 1 （Q9SIK2） Small ribosomal subunit protein eS10x × 1 （Q9LTF2） Small ribosomal subunit protein eS17w × 1 （Q9LZ17） POTASSIUM ION × 3 MAGNESIUM ION × 1 ZINC ION × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS282_ARATH
Isoform	—
PDB entities	9
Chains and sequence ranges	Author chain Bc； PDBConstruct 1–64； UniProt 1–64

Small ribosomal subunit protein uS14z/uS14y/uS14x

OrganismNot specified

UniProt Q680P8

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 (500-MER) × 1 Small ribosomal subunit protein uS3z × 1 （Q9SIP7） Small ribosomal subunit protein uS7z × 1 （Q9ZUT9） Small ribosomal subunit protein uS19x × 1 （Q9FY64） Small ribosomal subunit protein uS9z × 1 （Q9SK22） Small ribosomal subunit protein uS13z/uS13y/uS13x × 1 （P34788） Small ribosomal subunit protein eS19x × 1 （Q9FNP8） Small ribosomal subunit protein uS10z/uS10x × 1 （P49200） Small ribosomal subunit protein eS28x × 1 （P34789） Small ribosomal subunit protein eS25y × 1 （Q9SIK2） Small ribosomal subunit protein eS10x × 1 （Q9LTF2） Small ribosomal subunit protein eS17w × 1 （Q9LZ17） POTASSIUM ION × 3 MAGNESIUM ION × 1 ZINC ION × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS29_ARATH
Isoform	—
PDB entities	10
Chains and sequence ranges	Author chain d； PDBConstruct 1–56； UniProt 1–56

Small ribosomal subunit protein eS25y

OrganismNot specified

UniProt Q9SIK2

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 (500-MER) × 1 Small ribosomal subunit protein uS3z × 1 （Q9SIP7） Small ribosomal subunit protein uS7z × 1 （Q9ZUT9） Small ribosomal subunit protein uS19x × 1 （Q9FY64） Small ribosomal subunit protein uS9z × 1 （Q9SK22） Small ribosomal subunit protein uS13z/uS13y/uS13x × 1 （P34788） Small ribosomal subunit protein eS19x × 1 （Q9FNP8） Small ribosomal subunit protein uS10z/uS10x × 1 （P49200） Small ribosomal subunit protein eS28x × 1 （P34789） Small ribosomal subunit protein uS14z/uS14y/uS14x × 1 （Q680P8） Small ribosomal subunit protein eS10x × 1 （Q9LTF2） Small ribosomal subunit protein eS17w × 1 （Q9LZ17） POTASSIUM ION × 3 MAGNESIUM ION × 1 ZINC ION × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS252_ARATH
Isoform	—
PDB entities	11
Chains and sequence ranges	Author chain e； PDBConstruct 1–108； UniProt 1–108

Small ribosomal subunit protein eS10x

OrganismNot specified

UniProt Q9LTF2

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 (500-MER) × 1 Small ribosomal subunit protein uS3z × 1 （Q9SIP7） Small ribosomal subunit protein uS7z × 1 （Q9ZUT9） Small ribosomal subunit protein uS19x × 1 （Q9FY64） Small ribosomal subunit protein uS9z × 1 （Q9SK22） Small ribosomal subunit protein uS13z/uS13y/uS13x × 1 （P34788） Small ribosomal subunit protein eS19x × 1 （Q9FNP8） Small ribosomal subunit protein uS10z/uS10x × 1 （P49200） Small ribosomal subunit protein eS28x × 1 （P34789） Small ribosomal subunit protein uS14z/uS14y/uS14x × 1 （Q680P8） Small ribosomal subunit protein eS25y × 1 （Q9SIK2） Small ribosomal subunit protein eS17w × 1 （Q9LZ17） POTASSIUM ION × 3 MAGNESIUM ION × 1 ZINC ION × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS103_ARATH
Isoform	—
PDB entities	12
Chains and sequence ranges	Author chain BK； PDBConstruct 1–179； UniProt 1–179

Small ribosomal subunit protein eS17w

OrganismNot specified

UniProt Q9LZ17

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 (500-MER) × 1 Small ribosomal subunit protein uS3z × 1 （Q9SIP7） Small ribosomal subunit protein uS7z × 1 （Q9ZUT9） Small ribosomal subunit protein uS19x × 1 （Q9FY64） Small ribosomal subunit protein uS9z × 1 （Q9SK22） Small ribosomal subunit protein uS13z/uS13y/uS13x × 1 （P34788） Small ribosomal subunit protein eS19x × 1 （Q9FNP8） Small ribosomal subunit protein uS10z/uS10x × 1 （P49200） Small ribosomal subunit protein eS28x × 1 （P34789） Small ribosomal subunit protein uS14z/uS14y/uS14x × 1 （Q680P8） Small ribosomal subunit protein eS25y × 1 （Q9SIK2） Small ribosomal subunit protein eS10x × 1 （Q9LTF2） POTASSIUM ION × 3 MAGNESIUM ION × 1 ZINC ION × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS174_ARATH
Isoform	—
PDB entities	13
Chains and sequence ranges	Author chain BR； PDBConstruct 1–141； UniProt 1–141

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	9sdq
Deposition date deposition_date	2025-08-14
Structure title title	Cryo-EM structure of the Arabidopsis thaliana 40S ribosomal subunit (Head)
Keywords keywords	Ribosomal 40S subunit -Head region, 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.

9sdq__assembly_1__model_1

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

Download this curve (.dat)

9sdq__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9sdq__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	42.80 Å
Rg (electron density)	43.05 Å
Total Rg	43.26 Å
Atom count	38198
Residues	1850
Excluded volume	345850 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9sdq__assembly_1__model_1`	13-meric （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 (16)

Entity 1 Entity 1 polymer

Description description	RNA (500-MER)
Molecular weight formula_weight	160514.7 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polyribonucleotide
Chain IDs strand_id	2
Atom count atom_count	38198

AUUGACGGAAGGGCACCACCAGGAGUGGAGCCUGCGGCUUAAUUUGACXCAACACGGGGAAACUUACCAGGUCCAGACAUAGUAAGGAUUGACAGACUGAGAGCUCUUUCUUGAUUCUAUGGGUGGUGGUGCAUGGCNGUUCUUAGUUGGUGGAGCGAUUUGUCUGGUUAAUUCCGUUAACGAACGAGACCUCAGCCUGCUAACUAGCUACGUGGAGGCAUCCCUUCACGGCCGGCUUCUUAGAGGGACUAUGGCCGUUUAGGCCAAGGAAGUUUGAGGCAAUAACAGGUCUGUGAUGCCCUUAGAUGUUCUGGGCCGCACGCGCGCUACACUGAUGUAUUCAACGAGUUCACACCUUGGCCGACAGGCCCGGGUAAUCUUUGAAAUUUCAUCGUGAUGGGGAUAGAUCAUUGCAAUUGUUGGUCUUCAACGAGGAAUUCCUAGUAAGCGCGAGUCAUCAGCUCGCGUUGACUACGUCCCUGCCCUUUGUACACACCG

Entity 2 Entity 2 polymer

Description description	Small ribosomal subunit protein uS3z
Molecular weight formula_weight	27559.2 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	BD

MATQISKKRKFVADGVFYAELNEVLTRELAEDGYSGVEVRVTPMRTEIIIRATRTQNVLGEKGRRIRELTSLVQKRFKFPVDSVELYAEKVNNRGLCAIAQAESLRYKLLGGLAVRRACYGVLRFVMESGAKGCEVIVSGKLRAARAKSMKFKDGYMVSSGQPTKEYIDAAVRHVLLRQGVLGIKVKIMLDWDPTGKSGPKTPLPDVVIIHAPKDDVVYSAPAQAAAPVTLVQEAPLTTVDYPEMIPPVA

Entity 3 Entity 3 polymer

Description description	Small ribosomal subunit protein uS7z
Molecular weight formula_weight	23025.6 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	BF

MAASAEIDAEIQQQLTNEVKLFNRWSFDDVSVTDISLVDYIGVQPSKHATFVPHTAGRYSVKRFRKAQCPIVERLTNSLMMHGRNNGKKLMAVRIVKHAMEIIHLLSDLNPIQVIIDAIVNSGPREDATRIGSAGVVRRQAVDISPLRRVNQAIFLLTTGAREAAFRNIKTIAECLADELINAAKGSSNSYAIKKKDEIERVAKANR

Entity 4 Entity 4 polymer

Description description	Small ribosomal subunit protein uS19x
Molecular weight formula_weight	17106.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	BP

MADVEPEVAAAGVPKKRTFKKFAFKGVDLDALLDMSTDDLVKLFSSRIRRRFSRGLTRKPMALIKKLRKAKREAPAGEKPEPVRTHLRNMIIVPEMIGSIIGVYNGKTFNQVEIKPEMIGHYLAEFSISYKPVKHGRPGVGATHSSRFIPLK

Entity 5 Entity 5 polymer

Description description	Small ribosomal subunit protein uS9z
Molecular weight formula_weight	16663.5 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	BQ

MATQPATESVQCFGRKKTAVAVTHCKRGSGLIKLNGCPIELFQPEILRFKIFEPILLLGKHRFAGVNMRIRVNGGGHTSQVYAIRQSIAKALVAYYQKYVDEQSKKEIKDILVRYDRTLLVADPRRCEPKKFGGRGARSRYQKSYR

Entity 6 Entity 6 polymer

Description description	Small ribosomal subunit protein uS13z/uS13y/uS13x
Molecular weight formula_weight	17582.5 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	BS

MSLVANEEFQHILRVLNTNVDGKQKIMFALTSIKGIGRRLANIVCKKADVDMNKRAGELSAAEIDNLMTIVANPRQFKIPDWFLNRQKDYKDGKYSQVVSNALDMKLRDDLERLKKIRNHRGLRHYWGLRVRGQHTKTTGRRGKTVGVSKKR

Entity 7 Entity 7 polymer

Description description	Small ribosomal subunit protein eS19x
Molecular weight formula_weight	15627.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	BT

MATGKTVKDVSPHEFVKAYAAHLKRSGKIELPLWTDIVKTGKLKELAPYDPDWYYIRAASMARKVYLRGGLGVGAFRRIYGGSKRNGSRPPHFCKSSGGVARHILQQLQTMNIVDLDTKGGRKITSSGQRDLDQVAGRIAAA

Entity 8 Entity 8 polymer

Description description	Small ribosomal subunit protein uS10z/uS10x
Molecular weight formula_weight	13903.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	BU

MATAYQPMKPGKAGLEEPLEQIHKIRITLSSKNVKNLEKVCTDLVRGAKDKRLRVKGPVRMPTKVLKITTRKAPCGEGTNTWDRFELRVHKRVIDLFSSPDVVKQITSITIEPGVEVEVTIADS

Entity 9 Entity 9 polymer

Description description	Small ribosomal subunit protein eS28x
Molecular weight formula_weight	7355.6 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	Bc

MDSQIKHAVVVKVMGRTGSRGQVTQVRVKFTDSDRFIMRNVKGPVREGDVLTLLESEREARRLR

Entity 10 Entity 10 polymer

Description description	Small ribosomal subunit protein uS14z/uS14y/uS14x
Molecular weight formula_weight	6443.5 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	d

MGHSNVWNSHPKKYGPGSRLCRVCGNSHGLIRKYGLNCCRQCFRSNAKEIGFIKYR

Entity 11 Entity 11 polymer

Description description	Small ribosomal subunit protein eS25y
Molecular weight formula_weight	12095.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	e

MAPKKDKVPPPSSKPAKSGGGKQKKKKWSKGKQKEKVNNMVLFDQGTYDKLLTEAPKFKLITPSILSDRMRINGSLARRAIRELMAKGLIRMVSAHSSQQIYTRATNT

Entity 12 Entity 12 polymer

Description description	Small ribosomal subunit protein eS10x
Molecular weight formula_weight	19581.2 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	BK

MIISEANRKEICKYLFKEGVCFAKKDFNLAKHPLIDVPNLQVIKLMQSFKSKEYVRETFAWMHYYWFLTNEGIEFLRTYLNLPSDVVPATLKKSAKPGGRPFGGPPGDRSRGPRHEGGDRPRFGDRDGYRAGPRAGGEFGGEKGGAPADYQPSFQGSGRGFGRGAGGYSAAAPSGSGLP

Entity 13 Entity 13 polymer

Description description	Small ribosomal subunit protein eS17w
Molecular weight formula_weight	16048.7 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	BR

MGRVRTKTVKKSSRQVIEKYYSRMTLDFHTNKKILEEVAIIPSKRLRNKIAGFSTHLMKRIQKGPVRGISLKLQEEERERRMDFVPDESAIKTDEIKVDKETLEMLASLGMSDTPGISAVEPQQAMAPIAAFGGGRAPRRY

Entity 14 Entity 14 non-polymer

Description description	POTASSIUM ION
Molecular weight formula_weight	39.1 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 15 Entity 15 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 16 Entity 16 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	1

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

Resolution resolution	3.20 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	115070

Cryo-EM structure of the Arabidopsis thaliana 40S ribosomal subunit (Head)

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

Small ribosomal subunit protein uS3z

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 uS7z

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 uS19x

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 uS9z

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 uS13z/uS13y/uS13x

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 eS19x

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 uS10z/uS10x

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 eS28x

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 uS14z/uS14y/uS14x

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 eS25y

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer