9v1j

Cryo- EM structure of small subunit (body) of 75S ribosome with P- tRNA from Entamoeba histolytica

Method: ELECTRON MICROSCOPY

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

40S ribosomal protein S26

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 17 RNA 3	Small ribosomal subunit protein eS27 × 1 （P38654） P-tRNA × 1 mRNA × 1 17S rRNA × 1 Small ribosomal subunit protein uS2 × 1 （C4M5A0） Small ribosomal subunit protein uS5 × 1 （C4M7U0） Small ribosomal subunit protein eS1 × 1 （C4M609） 40S ribosomal protein S4, putative × 1 （C4LYF4） 40S ribosomal protein S6 × 1 （C4LXN2） 40S ribosomal protein S7 × 1 （C4M9F9） 40S ribosomal protein S8 × 1 （C4M8Y8） Small ribosomal subunit protein uS4 × 1 （O15612） 40S ribosomal protein S11, putative × 1 （C4M979） 40S ribosomal protein S13, putative × 1 （A0A175JJM9） Ribosomal protein S14, putative × 1 （B1N2I3） 40S ribosomal protein S15a, putative × 1 （C4LXM0） 40S ribosomal protein S21 × 1 （C4LWW3） 40S ribosomal protein S23, putative × 1 （C4M5B7） 40S ribosomal protein S24, putative × 1 （C4M549）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	C4M7G9_ENTH1
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain sB； PDBConstruct 1–144； UniProt 1–144

Small ribosomal subunit protein eS27

OrganismNot specified

UniProt P38654

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 17 RNA 3	40S ribosomal protein S26 × 1 （C4M7G9） P-tRNA × 1 mRNA × 1 17S rRNA × 1 Small ribosomal subunit protein uS2 × 1 （C4M5A0） Small ribosomal subunit protein uS5 × 1 （C4M7U0） Small ribosomal subunit protein eS1 × 1 （C4M609） 40S ribosomal protein S4, putative × 1 （C4LYF4） 40S ribosomal protein S6 × 1 （C4LXN2） 40S ribosomal protein S7 × 1 （C4M9F9） 40S ribosomal protein S8 × 1 （C4M8Y8） Small ribosomal subunit protein uS4 × 1 （O15612） 40S ribosomal protein S11, putative × 1 （C4M979） 40S ribosomal protein S13, putative × 1 （A0A175JJM9） Ribosomal protein S14, putative × 1 （B1N2I3） 40S ribosomal protein S15a, putative × 1 （C4LXM0） 40S ribosomal protein S21 × 1 （C4LWW3） 40S ribosomal protein S23, putative × 1 （C4M5B7） 40S ribosomal protein S24, putative × 1 （C4M549）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS27_ENTH1
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain sC； PDBConstruct 1–84； UniProt 1–84

Small ribosomal subunit protein uS2

OrganismNot specified

UniProt C4M5A0

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 17 RNA 3	40S ribosomal protein S26 × 1 （C4M7G9） Small ribosomal subunit protein eS27 × 1 （P38654） P-tRNA × 1 mRNA × 1 17S rRNA × 1 Small ribosomal subunit protein uS5 × 1 （C4M7U0） Small ribosomal subunit protein eS1 × 1 （C4M609） 40S ribosomal protein S4, putative × 1 （C4LYF4） 40S ribosomal protein S6 × 1 （C4LXN2） 40S ribosomal protein S7 × 1 （C4M9F9） 40S ribosomal protein S8 × 1 （C4M8Y8） Small ribosomal subunit protein uS4 × 1 （O15612） 40S ribosomal protein S11, putative × 1 （C4M979） 40S ribosomal protein S13, putative × 1 （A0A175JJM9） Ribosomal protein S14, putative × 1 （B1N2I3） 40S ribosomal protein S15a, putative × 1 （C4LXM0） 40S ribosomal protein S21 × 1 （C4LWW3） 40S ribosomal protein S23, putative × 1 （C4M5B7） 40S ribosomal protein S24, putative × 1 （C4M549）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	C4M5A0_ENTH1
Isoform	—
PDB entities	6
Chains and sequence ranges	Author chain sb； PDBConstruct 1–254； UniProt 1–254

Small ribosomal subunit protein uS5

OrganismNot specified

UniProt C4M7U0

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 17 RNA 3	40S ribosomal protein S26 × 1 （C4M7G9） Small ribosomal subunit protein eS27 × 1 （P38654） P-tRNA × 1 mRNA × 1 17S rRNA × 1 Small ribosomal subunit protein uS2 × 1 （C4M5A0） Small ribosomal subunit protein eS1 × 1 （C4M609） 40S ribosomal protein S4, putative × 1 （C4LYF4） 40S ribosomal protein S6 × 1 （C4LXN2） 40S ribosomal protein S7 × 1 （C4M9F9） 40S ribosomal protein S8 × 1 （C4M8Y8） Small ribosomal subunit protein uS4 × 1 （O15612） 40S ribosomal protein S11, putative × 1 （C4M979） 40S ribosomal protein S13, putative × 1 （A0A175JJM9） Ribosomal protein S14, putative × 1 （B1N2I3） 40S ribosomal protein S15a, putative × 1 （C4LXM0） 40S ribosomal protein S21 × 1 （C4LWW3） 40S ribosomal protein S23, putative × 1 （C4M5B7） 40S ribosomal protein S24, putative × 1 （C4M549）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	C4M7U0_ENTH1
Isoform	—
PDB entities	7
Chains and sequence ranges	Author chain sc； PDBConstruct 1–255； UniProt 1–255

Small ribosomal subunit protein eS1

OrganismNot specified

UniProt C4M609

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 17 RNA 3	40S ribosomal protein S26 × 1 （C4M7G9） Small ribosomal subunit protein eS27 × 1 （P38654） P-tRNA × 1 mRNA × 1 17S rRNA × 1 Small ribosomal subunit protein uS2 × 1 （C4M5A0） Small ribosomal subunit protein uS5 × 1 （C4M7U0） 40S ribosomal protein S4, putative × 1 （C4LYF4） 40S ribosomal protein S6 × 1 （C4LXN2） 40S ribosomal protein S7 × 1 （C4M9F9） 40S ribosomal protein S8 × 1 （C4M8Y8） Small ribosomal subunit protein uS4 × 1 （O15612） 40S ribosomal protein S11, putative × 1 （C4M979） 40S ribosomal protein S13, putative × 1 （A0A175JJM9） Ribosomal protein S14, putative × 1 （B1N2I3） 40S ribosomal protein S15a, putative × 1 （C4LXM0） 40S ribosomal protein S21 × 1 （C4LWW3） 40S ribosomal protein S23, putative × 1 （C4M5B7） 40S ribosomal protein S24, putative × 1 （C4M549）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	C4M609_ENTH1
Isoform	—
PDB entities	8
Chains and sequence ranges	Author chain se； PDBConstruct 1–256； UniProt 1–256

40S ribosomal protein S4, putative

OrganismNot specified

UniProt C4LYF4

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 17 RNA 3	40S ribosomal protein S26 × 1 （C4M7G9） Small ribosomal subunit protein eS27 × 1 （P38654） P-tRNA × 1 mRNA × 1 17S rRNA × 1 Small ribosomal subunit protein uS2 × 1 （C4M5A0） Small ribosomal subunit protein uS5 × 1 （C4M7U0） Small ribosomal subunit protein eS1 × 1 （C4M609） 40S ribosomal protein S6 × 1 （C4LXN2） 40S ribosomal protein S7 × 1 （C4M9F9） 40S ribosomal protein S8 × 1 （C4M8Y8） Small ribosomal subunit protein uS4 × 1 （O15612） 40S ribosomal protein S11, putative × 1 （C4M979） 40S ribosomal protein S13, putative × 1 （A0A175JJM9） Ribosomal protein S14, putative × 1 （B1N2I3） 40S ribosomal protein S15a, putative × 1 （C4LXM0） 40S ribosomal protein S21 × 1 （C4LWW3） 40S ribosomal protein S23, putative × 1 （C4M5B7） 40S ribosomal protein S24, putative × 1 （C4M549）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	C4LYF4_ENTH1
Isoform	—
PDB entities	9
Chains and sequence ranges	Author chain sf； PDBConstruct 1–326； UniProt 1–326

40S ribosomal protein S6

OrganismNot specified

UniProt C4LXN2

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 17 RNA 3	40S ribosomal protein S26 × 1 （C4M7G9） Small ribosomal subunit protein eS27 × 1 （P38654） P-tRNA × 1 mRNA × 1 17S rRNA × 1 Small ribosomal subunit protein uS2 × 1 （C4M5A0） Small ribosomal subunit protein uS5 × 1 （C4M7U0） Small ribosomal subunit protein eS1 × 1 （C4M609） 40S ribosomal protein S4, putative × 1 （C4LYF4） 40S ribosomal protein S7 × 1 （C4M9F9） 40S ribosomal protein S8 × 1 （C4M8Y8） Small ribosomal subunit protein uS4 × 1 （O15612） 40S ribosomal protein S11, putative × 1 （C4M979） 40S ribosomal protein S13, putative × 1 （A0A175JJM9） Ribosomal protein S14, putative × 1 （B1N2I3） 40S ribosomal protein S15a, putative × 1 （C4LXM0） 40S ribosomal protein S21 × 1 （C4LWW3） 40S ribosomal protein S23, putative × 1 （C4M5B7） 40S ribosomal protein S24, putative × 1 （C4M549）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	C4LXN2_ENTH1
Isoform	—
PDB entities	10
Chains and sequence ranges	Author chain sh； PDBConstruct 1–266； UniProt 1–266

40S ribosomal protein S7

OrganismNot specified

UniProt C4M9F9

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 17 RNA 3	40S ribosomal protein S26 × 1 （C4M7G9） Small ribosomal subunit protein eS27 × 1 （P38654） P-tRNA × 1 mRNA × 1 17S rRNA × 1 Small ribosomal subunit protein uS2 × 1 （C4M5A0） Small ribosomal subunit protein uS5 × 1 （C4M7U0） Small ribosomal subunit protein eS1 × 1 （C4M609） 40S ribosomal protein S4, putative × 1 （C4LYF4） 40S ribosomal protein S6 × 1 （C4LXN2） 40S ribosomal protein S8 × 1 （C4M8Y8） Small ribosomal subunit protein uS4 × 1 （O15612） 40S ribosomal protein S11, putative × 1 （C4M979） 40S ribosomal protein S13, putative × 1 （A0A175JJM9） Ribosomal protein S14, putative × 1 （B1N2I3） 40S ribosomal protein S15a, putative × 1 （C4LXM0） 40S ribosomal protein S21 × 1 （C4LWW3） 40S ribosomal protein S23, putative × 1 （C4M5B7） 40S ribosomal protein S24, putative × 1 （C4M549）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	C4M9F9_ENTH1
Isoform	—
PDB entities	11
Chains and sequence ranges	Author chain si； PDBConstruct 1–201； UniProt 1–201

40S ribosomal protein S8

OrganismNot specified

UniProt C4M8Y8

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 17 RNA 3	40S ribosomal protein S26 × 1 （C4M7G9） Small ribosomal subunit protein eS27 × 1 （P38654） P-tRNA × 1 mRNA × 1 17S rRNA × 1 Small ribosomal subunit protein uS2 × 1 （C4M5A0） Small ribosomal subunit protein uS5 × 1 （C4M7U0） Small ribosomal subunit protein eS1 × 1 （C4M609） 40S ribosomal protein S4, putative × 1 （C4LYF4） 40S ribosomal protein S6 × 1 （C4LXN2） 40S ribosomal protein S7 × 1 （C4M9F9） Small ribosomal subunit protein uS4 × 1 （O15612） 40S ribosomal protein S11, putative × 1 （C4M979） 40S ribosomal protein S13, putative × 1 （A0A175JJM9） Ribosomal protein S14, putative × 1 （B1N2I3） 40S ribosomal protein S15a, putative × 1 （C4LXM0） 40S ribosomal protein S21 × 1 （C4LWW3） 40S ribosomal protein S23, putative × 1 （C4M5B7） 40S ribosomal protein S24, putative × 1 （C4M549）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	C4M8Y8_ENTH1
Isoform	—
PDB entities	12
Chains and sequence ranges	Author chain sj； PDBConstruct 1–237； UniProt 1–237

Small ribosomal subunit protein uS4

OrganismNot specified

UniProt O15612

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 17 RNA 3	40S ribosomal protein S26 × 1 （C4M7G9） Small ribosomal subunit protein eS27 × 1 （P38654） P-tRNA × 1 mRNA × 1 17S rRNA × 1 Small ribosomal subunit protein uS2 × 1 （C4M5A0） Small ribosomal subunit protein uS5 × 1 （C4M7U0） Small ribosomal subunit protein eS1 × 1 （C4M609） 40S ribosomal protein S4, putative × 1 （C4LYF4） 40S ribosomal protein S6 × 1 （C4LXN2） 40S ribosomal protein S7 × 1 （C4M9F9） 40S ribosomal protein S8 × 1 （C4M8Y8） 40S ribosomal protein S11, putative × 1 （C4M979） 40S ribosomal protein S13, putative × 1 （A0A175JJM9） Ribosomal protein S14, putative × 1 （B1N2I3） 40S ribosomal protein S15a, putative × 1 （C4LXM0） 40S ribosomal protein S21 × 1 （C4LWW3） 40S ribosomal protein S23, putative × 1 （C4M5B7） 40S ribosomal protein S24, putative × 1 （C4M549）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS9_ENTH1
Isoform	—
PDB entities	13
Chains and sequence ranges	Author chain sk； PDBConstruct 1–185； UniProt 1–185

40S ribosomal protein S11, putative

OrganismNot specified

UniProt C4M979

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 17 RNA 3	40S ribosomal protein S26 × 1 （C4M7G9） Small ribosomal subunit protein eS27 × 1 （P38654） P-tRNA × 1 mRNA × 1 17S rRNA × 1 Small ribosomal subunit protein uS2 × 1 （C4M5A0） Small ribosomal subunit protein uS5 × 1 （C4M7U0） Small ribosomal subunit protein eS1 × 1 （C4M609） 40S ribosomal protein S4, putative × 1 （C4LYF4） 40S ribosomal protein S6 × 1 （C4LXN2） 40S ribosomal protein S7 × 1 （C4M9F9） 40S ribosomal protein S8 × 1 （C4M8Y8） Small ribosomal subunit protein uS4 × 1 （O15612） 40S ribosomal protein S13, putative × 1 （A0A175JJM9） Ribosomal protein S14, putative × 1 （B1N2I3） 40S ribosomal protein S15a, putative × 1 （C4LXM0） 40S ribosomal protein S21 × 1 （C4LWW3） 40S ribosomal protein S23, putative × 1 （C4M5B7） 40S ribosomal protein S24, putative × 1 （C4M549）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	C4M979_ENTH1
Isoform	—
PDB entities	14
Chains and sequence ranges	Author chain sm； PDBConstruct 1–156； UniProt 1–156

40S ribosomal protein S13, putative

OrganismNot specified

UniProt A0A175JJM9

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 17 RNA 3	40S ribosomal protein S26 × 1 （C4M7G9） Small ribosomal subunit protein eS27 × 1 （P38654） P-tRNA × 1 mRNA × 1 17S rRNA × 1 Small ribosomal subunit protein uS2 × 1 （C4M5A0） Small ribosomal subunit protein uS5 × 1 （C4M7U0） Small ribosomal subunit protein eS1 × 1 （C4M609） 40S ribosomal protein S4, putative × 1 （C4LYF4） 40S ribosomal protein S6 × 1 （C4LXN2） 40S ribosomal protein S7 × 1 （C4M9F9） 40S ribosomal protein S8 × 1 （C4M8Y8） Small ribosomal subunit protein uS4 × 1 （O15612） 40S ribosomal protein S11, putative × 1 （C4M979） Ribosomal protein S14, putative × 1 （B1N2I3） 40S ribosomal protein S15a, putative × 1 （C4LXM0） 40S ribosomal protein S21 × 1 （C4LWW3） 40S ribosomal protein S23, putative × 1 （C4M5B7） 40S ribosomal protein S24, putative × 1 （C4M549）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	A0A175JJM9_ENTH1
Isoform	—
PDB entities	15
Chains and sequence ranges	Author chain so； PDBConstruct 1–151； UniProt 1–151

Ribosomal protein S14, putative

OrganismNot specified

UniProt B1N2I3

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 17 RNA 3	40S ribosomal protein S26 × 1 （C4M7G9） Small ribosomal subunit protein eS27 × 1 （P38654） P-tRNA × 1 mRNA × 1 17S rRNA × 1 Small ribosomal subunit protein uS2 × 1 （C4M5A0） Small ribosomal subunit protein uS5 × 1 （C4M7U0） Small ribosomal subunit protein eS1 × 1 （C4M609） 40S ribosomal protein S4, putative × 1 （C4LYF4） 40S ribosomal protein S6 × 1 （C4LXN2） 40S ribosomal protein S7 × 1 （C4M9F9） 40S ribosomal protein S8 × 1 （C4M8Y8） Small ribosomal subunit protein uS4 × 1 （O15612） 40S ribosomal protein S11, putative × 1 （C4M979） 40S ribosomal protein S13, putative × 1 （A0A175JJM9） 40S ribosomal protein S15a, putative × 1 （C4LXM0） 40S ribosomal protein S21 × 1 （C4LWW3） 40S ribosomal protein S23, putative × 1 （C4M5B7） 40S ribosomal protein S24, putative × 1 （C4M549）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	B1N2I3_ENTH1
Isoform	—
PDB entities	16
Chains and sequence ranges	Author chain sp； PDBConstruct 1–146； UniProt 1–146

40S ribosomal protein S15a, putative

OrganismNot specified

UniProt C4LXM0

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 17 RNA 3	40S ribosomal protein S26 × 1 （C4M7G9） Small ribosomal subunit protein eS27 × 1 （P38654） P-tRNA × 1 mRNA × 1 17S rRNA × 1 Small ribosomal subunit protein uS2 × 1 （C4M5A0） Small ribosomal subunit protein uS5 × 1 （C4M7U0） Small ribosomal subunit protein eS1 × 1 （C4M609） 40S ribosomal protein S4, putative × 1 （C4LYF4） 40S ribosomal protein S6 × 1 （C4LXN2） 40S ribosomal protein S7 × 1 （C4M9F9） 40S ribosomal protein S8 × 1 （C4M8Y8） Small ribosomal subunit protein uS4 × 1 （O15612） 40S ribosomal protein S11, putative × 1 （C4M979） 40S ribosomal protein S13, putative × 1 （A0A175JJM9） Ribosomal protein S14, putative × 1 （B1N2I3） 40S ribosomal protein S21 × 1 （C4LWW3） 40S ribosomal protein S23, putative × 1 （C4M5B7） 40S ribosomal protein S24, putative × 1 （C4M549）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	C4LXM0_ENTH1
Isoform	—
PDB entities	17
Chains and sequence ranges	Author chain sr； PDBConstruct 1–130； UniProt 1–130

40S ribosomal protein S21

OrganismNot specified

UniProt C4LWW3

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 17 RNA 3	40S ribosomal protein S26 × 1 （C4M7G9） Small ribosomal subunit protein eS27 × 1 （P38654） P-tRNA × 1 mRNA × 1 17S rRNA × 1 Small ribosomal subunit protein uS2 × 1 （C4M5A0） Small ribosomal subunit protein uS5 × 1 （C4M7U0） Small ribosomal subunit protein eS1 × 1 （C4M609） 40S ribosomal protein S4, putative × 1 （C4LYF4） 40S ribosomal protein S6 × 1 （C4LXN2） 40S ribosomal protein S7 × 1 （C4M9F9） 40S ribosomal protein S8 × 1 （C4M8Y8） Small ribosomal subunit protein uS4 × 1 （O15612） 40S ribosomal protein S11, putative × 1 （C4M979） 40S ribosomal protein S13, putative × 1 （A0A175JJM9） Ribosomal protein S14, putative × 1 （B1N2I3） 40S ribosomal protein S15a, putative × 1 （C4LXM0） 40S ribosomal protein S23, putative × 1 （C4M5B7） 40S ribosomal protein S24, putative × 1 （C4M549）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	C4LWW3_ENTH1
Isoform	—
PDB entities	18
Chains and sequence ranges	Author chain sx； PDBConstruct 1–86； UniProt 1–86

40S ribosomal protein S23, putative

OrganismNot specified

UniProt C4M5B7

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 17 RNA 3	40S ribosomal protein S26 × 1 （C4M7G9） Small ribosomal subunit protein eS27 × 1 （P38654） P-tRNA × 1 mRNA × 1 17S rRNA × 1 Small ribosomal subunit protein uS2 × 1 （C4M5A0） Small ribosomal subunit protein uS5 × 1 （C4M7U0） Small ribosomal subunit protein eS1 × 1 （C4M609） 40S ribosomal protein S4, putative × 1 （C4LYF4） 40S ribosomal protein S6 × 1 （C4LXN2） 40S ribosomal protein S7 × 1 （C4M9F9） 40S ribosomal protein S8 × 1 （C4M8Y8） Small ribosomal subunit protein uS4 × 1 （O15612） 40S ribosomal protein S11, putative × 1 （C4M979） 40S ribosomal protein S13, putative × 1 （A0A175JJM9） Ribosomal protein S14, putative × 1 （B1N2I3） 40S ribosomal protein S15a, putative × 1 （C4LXM0） 40S ribosomal protein S21 × 1 （C4LWW3） 40S ribosomal protein S24, putative × 1 （C4M549）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	C4M5B7_ENTH1
Isoform	—
PDB entities	19
Chains and sequence ranges	Author chain sy； PDBConstruct 1–141； UniProt 1–141

40S ribosomal protein S24, putative

OrganismNot specified

UniProt C4M549

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 17 RNA 3	40S ribosomal protein S26 × 1 （C4M7G9） Small ribosomal subunit protein eS27 × 1 （P38654） P-tRNA × 1 mRNA × 1 17S rRNA × 1 Small ribosomal subunit protein uS2 × 1 （C4M5A0） Small ribosomal subunit protein uS5 × 1 （C4M7U0） Small ribosomal subunit protein eS1 × 1 （C4M609） 40S ribosomal protein S4, putative × 1 （C4LYF4） 40S ribosomal protein S6 × 1 （C4LXN2） 40S ribosomal protein S7 × 1 （C4M9F9） 40S ribosomal protein S8 × 1 （C4M8Y8） Small ribosomal subunit protein uS4 × 1 （O15612） 40S ribosomal protein S11, putative × 1 （C4M979） 40S ribosomal protein S13, putative × 1 （A0A175JJM9） Ribosomal protein S14, putative × 1 （B1N2I3） 40S ribosomal protein S15a, putative × 1 （C4LXM0） 40S ribosomal protein S21 × 1 （C4LWW3） 40S ribosomal protein S23, putative × 1 （C4M5B7）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	C4M549_ENTH1
Isoform	—
PDB entities	20
Chains and sequence ranges	Author chain sz； PDBConstruct 1–140； UniProt 1–140

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	9v1j
Deposition date deposition_date	2025-05-19
Last revision last_revision	2025-10-08
Structure title title	Cryo- EM structure of small subunit (body) of 75S ribosome with P- tRNA from Entamoeba histolytica
Keywords keywords	SSU-body, Entamoeba histolytica, 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.

9v1j__assembly_1__model_1

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

Download this curve (.dat)

9v1j__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9v1j__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	58.24 Å
Rg (electron density)	59.48 Å
Total Rg	59.48 Å
Atom count	41917
Residues	3490
Excluded volume	666390 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9v1j__assembly_1__model_1`	eicosameric （20）	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 (20)

Entity 1 Entity 1 polymer

Description description	40S ribosomal protein S26
Molecular weight formula_weight	16455.4 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	sB
Atom count atom_count	41917

MTSKRRNNGRSKKGRGHTQNVRCSHCGRCVPKDKAIKRYQIKNIVEAAAVRDISDNSALTKYKLPKTYMKLEYCVSCGIHGRVVRVRSRTDRRNRLPPKRVVKKTNKQQAVKPSTEAVKVEIPADVVTAPKVAAQKERPFKYLQ

Entity 2 Entity 2 polymer

Description description	Small ribosomal subunit protein eS27
Molecular weight formula_weight	9338.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	sC

MPLIEVDLLNPTAASEAKAHKMKRLVPTPNSYFLEIKCPKCGATTTTFSHAHRQILCQKCGQPLGQPTGGKLKLTQQCKFRIKK

Entity 3 Entity 3 polymer

Description description	P-tRNA
Molecular weight formula_weight	24362.4 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polyribonucleotide
Chain IDs strand_id	sH

GACCUUAUAGCUCAGUCGGUAGAGCACGGGAUUUAUAAUCCCGGUGUCAUCGGUUCGAUUCCGAUUAAGGUCACCA

Entity 4 Entity 4 polymer

Description description	mRNA
Molecular weight formula_weight	1861.2 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polyribonucleotide
Chain IDs strand_id	sK

UUAAUA

Entity 5 Entity 5 polymer

Description description	17S rRNA
Molecular weight formula_weight	628401.8 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polyribonucleotide
Chain IDs strand_id	sa

UAUCUGGUUGAUCCUGCCAGUAUUAUAUGCUGAUGUUAAAGAUUAAGCCAUGCAUGUGUAAGUAUAAAGACCAAGUAGGAUGAAACUGCGGACGGCUCAUUAUAACAGUAAUAGUUUCUUUGGUUAGUAAAAUACAAGGAUAGCUUUGUGAAUGAUAAAGAUAAUACUUGAGACGAUCCAGUUUGUAUUAGUACAAAAUGGCCAAUUCAUUCAAUGAAUUGAGAAAUGACAUUCUAAGUGAGUUAGGAUGCCACGACAAUUGUAGAACACACAGUGUUUAACAAGUAACCAAUGAGAAUUUCUGAUCUAUCAAUCAGUUGGUAGUAUCGAGGACUACCAAGAUUAUAACGGAUAACGAGGAAUUGGGGUUCGACAUCGGAGAGGGAGCUUUACAGAUGGCUACCACUUCUAAGGAAGGCAGCAGGCGCGUAAAUUACCCACUUUCGAAUUGAAGAGGUAGUGACGACACAUAACUCUAGAGUUGAGUAAAAUCAAUUCUUGAAGGAAUGAGUAGGAGGUAAAUUCUCCUACGAAAUCAAUUGGAGGGCAAGUCUGGUGCCAGCAGCCGCGGUAAUUCCAGCUCCAAUAGUGUAUAUUAAAGUUGCUGUGAUUAAAACGCUCGUAGUUGAAUUAAAAUGUGGUUUUAUACAUUUUGAAGACUUUAUGUAAGUAAAGUUUCUAGAAAUGUUAAAUUAAAAUCAAAGAAGGAAACAAUUCAAGUAAUUGAGUUGUUAUUACUUUGAAUAAAAUAAGGUGUUUAAAGCAAAACAUUAUGUUAAUGAAUAUUCAAGCAUGGGACAAUGCUGAGGGGAUGUCAAUAAGACAUUUCGAGAGAAGGAUUAAAAGGAACAAUUGGGGUGAUUCAGAAAAUAACGGGAGAGGUGAAAAUCCAUGAUCGCUAUAAGAUGCACGAGAGCGAAAGCAUUUCACUCAACUGUGUCCAUUAAUCAAGAACGAAAGUUAGGGGAUCGAAGACGAUCAGAUACCGUCGUAGUCCUAACUAUAAACGAUGUCAACCAAGGAUUGGAUGAAAUUCAGAUGUACAAAGAUAGAGAAGCAUUGUUUCUAGAUCUGAGUAUAUCAAUAUUACCUUGUUCAGAACUUAAAGAGAAAUCUUGAGUUUAUGGACUUCAGGGGGAGUAUGGUCACAAGGCUGAAACUUAAAGGAAUUGACGGAAGGGCACACCAGGAGUGGAGCCUGCGGCUUAAUUUGACUCAACACGGGAAAACUUACCAAGACCGAACAGUAGAAGGAAUGACAGAUUAAGAGUUCUUUCAUGAUUUAUUGGGUAGUGGUGCAUGGCCGUUCUUAGUUGGUGGAGUGAUUUGUCAGGUUAAUUCCGGUAACGAACGAGACUGAAACCUAUUAAUUAGUUUUCUGCCUAUAAGACAGAAAUGUUCGCAAGAACAGGUGCGUAAGUACCACUUCUUAAAGGGACACAUUUCAAUUGUCCUAUUUUAAUUGUAGUUAUCUAAUUUCGGUUAGACCUCUUUUAACGUGGGAAAAAGAAAAAGGAAGCAUUCAGCAAUAACAGGUCUGUGAUGCCCUUAGACAUCUUGGGCCGCACGCGCGCUACAAUGGAGUUACUAGAGAGUAUUUUAUCAUUUACACCUUAUUUAUUAGGCUUUGUCUAAUAAUUAAGGAUAGUAAGUGGUGUACCGAGAUUGAAAUAGUUAAGGAAAACUCAAAAGAACGUACAUGACAGGGAUAAAUGAUUGGAAUUAUUUGUUUUGAACGAGGAAUUCCUUGUAAUAUCGAGUCAUUAACUCGAGAUGAAUACGUCCCUGCCCUUUGUACACACCGCCCGUCGCUCCUACCGAUUGAAUAAAGAGGUGAAAUUCUAGGAUUCUGUCUUAUAGAUAGAAAAAUGGAUUUAAAUCUCCUUAUUUAGAGGAAGGAGAAGUCGUAACAAGGUUUCCGUAGGUGAACCUGCGGAAGGAUCAUUA

Entity 6 Entity 6 polymer

Description description	Small ribosomal subunit protein uS2
Molecular weight formula_weight	28634.0 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	sb

MSKNVKTNFPDILKPSAEDIKMMVACRVHIGATNLNFAMEEYVYERGNNNECIFNLMKTWEKLSLAARVIAGISNETPSDVVAVAGREMAHRASLKFMKYTGCTAVAGRFTPGSFTNQIQKKFMEPRLIIVSDPSVDHQALRESGYINVPTIAFCNSDNSLKNVDIAIPCNNRSRLSIGLMWWMLTREILRYQGKLARDEKWDVMVDLFLHRELDAKKDAPVIAGEEKVAKVEDKKAASDATVASTEWDDQKKN

Entity 7 Entity 7 polymer

Description description	Small ribosomal subunit protein uS5
Molecular weight formula_weight	27737.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	sc

MDAKQQRGEKRQFGNRRGGRGAPRGRGARKDGASDGWTPVTKLGRLVKDGKVKSIDQIFEFGIKIKEYQIVDHLLPGLKEEVMTMQSVQKQTSAGQRTRLKAYVAIGDHNGHAGLGVKCAKEVAEAIKGAMIQAKLAMVPVRRGYWGATIGEVHTVPCKLTGACGSVRVRLVPAPRGTGIVAAPTPKKFLILAGIEDVFTQTTGHTKTLGNFVKATYDAVRQSYGFQTKDLWKVGGVKQSPMDKYAKILAESKKN

Entity 8 Entity 8 polymer

Description description	Small ribosomal subunit protein eS1
Molecular weight formula_weight	29094.2 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	se

MATGKNKKYKAGNVKKGSKRKIAEPFSKKEWYNVKVPKNFKRRTVGQIVVNKTAGTRIASEQLKGRVVEVNLADLMENEKFGAYNYKFKCEDVNGKDCLMIFHGLKLTTDKLRSIVKKWCTLIETSVDVKTTDGHLIRIFCIGFTSRKSNQIKKTSYAKSAQIKKIRKIMNNLITKEAASRELTQFVDYLRENKLPKEIVAKCSKVFSMDNVYIRKVKILKAGKIDSLKLLDQHQDTSAPVEAAPVAEEKGEVVEA

Entity 9 Entity 9 polymer

Description description	40S ribosomal protein S4, putative
Molecular weight formula_weight	36830.8 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	sf

MARGPRHHLKRLNAPHHWMLSKLGGTFAPKPSHGPHGMKECLPLILILRNRLNYALNGREVTMIVKNRTIKIDGKIRTDTRYPVGFMDVLSIPRTKENFRLMYNTKRRFCLVPLTAEQAKFKLCKIEKRVLGTGAIPYIVTHDGRTIRYPHPELQANDTIKLNLETGKIVDFVKFDIGNTAMMIGGNGMGRVGVIVKREVHPGSFEIVHIKDAKGNTFTTRLNNVFVIGKGTETLVNLPLDKGIKKPLLQQVNETIKKNKMQKAGIQKASKKSKTTTEKKVTPKAAVEKKEEQVEKIYKKYPKKQAAPKKSKGNKKVVPGKKIGKK

Entity 10 Entity 10 polymer

Description description	40S ribosomal protein S6
Molecular weight formula_weight	29822.2 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	sh

MKINVANPATGRIKKFDFEEEKNYRPFLDKRIGQEVDASSLGDEFKGYILKITGGCDKDGFPMMTGVATNNRVRLLLDGRNGCYKPLRNGERRRKTVRGAIVAGDISVLNTIVVKKGEGEIEGVTNDALPMRAGPKRASHIRKLFNLSQKDDVKKFVIRREVAKKHPKEGKSTKRSKAPKIQRLVTPRRLQHKAQKLEAKKLHKIAMLKEAKRYAAILNRYKVLKAHGMKVVSFADTDAVFKQNKAGSKKAASKGKKVGSKKTGKK

Entity 11 Entity 11 polymer

Description description	40S ribosomal protein S7
Molecular weight formula_weight	21999.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	si

MSGKMTAAKSAARAQVSTEVVVKKPGFDAYSKLVKEAVAGIPELKGVKVISAKKVTISKDKKATVIFIPLRMMRICRASFEKVIEALEKKLNGPVFIIGKRVVAHTKKVGQSGKTDYKPRSRTSKAVHEAYLNEMLYPVEVAGQRVHATLVHKKVANSKTVFVAVDDAKLKNSVKAKLPIYSAVYKNITGEKVKFAFPVVA

Entity 12 Entity 12 polymer

Description description	40S ribosomal protein S8
Molecular weight formula_weight	27017.4 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	sj

MGITRDSRHKRRATGGKKNSMQKKKKNTMGRQPANTRLGAIRVHDVRCRYGIIKRRALRLENGNFSWASQSITKGTKILNVVYNASDNDFVRTNTLVKGAIIEIDPAPFRLWFLKFYGKDIASTDYYKSLESATFKTEKKVVVPKEEENKEKTIAQQIAETQVALMNPSKTMQKKYAKKLEVLKNMKFDEALLEGFQSGRVLACISSRPGQTGSVEGYILEGKELDFYSKKISDKKK

Entity 13 Entity 13 polymer

Description description	Small ribosomal subunit protein uS4
Molecular weight formula_weight	21548.5 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	sk

MGRCLRNHSITYKTPKVPYERERFDAELKLVGQFGLKNKKEIQRVHYMLGHMRTIAKVMLMKDAKDPKRLLEGAALLRRLHNLGILPRDQNKLEFVLALKEENLLERRLQTLVYRKGFAKSIHHARVLIRGKMIKVGKQVVDVPSFLVRVESEPLIQLADNTPLTNPEINGRRKRKNNHAGKEDN

Entity 14 Entity 14 polymer

Description description	40S ribosomal protein S11, putative
Molecular weight formula_weight	18248.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	sm

MAEQTERAYQKQVFHHHSRNEKGEIDFGNVKRYHKQIGMGFVTPAEAIKGTYIDKKCPFTSDVSIRGRTLSGIVKSCHMKRTIIVRRDYFHYVSKYQRYEKRHKNIAVHCSPAFRQLKEGDHVVIGQCRPLSKTVRFNVLKFTSRGTGDKKQFAIF

Entity 15 Entity 15 polymer

Description description	40S ribosomal protein S13, putative
Molecular weight formula_weight	17038.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	so

MGRMYNPGRGISRRCIPYRRSAPSWLKTSTLEVIDEMCKLAKKGIAPSQIGAIMRDTHGVGLVKSVTGSKVLRILKLAGLAPKIPEDLYFLMKRAVSVRKHLEKNKKDKDAKYHLILIESKIHRLTRYYKSAKVLEASFKYDANTASAIVS

Entity 16 Entity 16 polymer

Description description	Ribosomal protein S14, putative
Molecular weight formula_weight	15670.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	sp

MSKKVAAKSNVPEVIPGSTKDAFGVAHIYATFNDTFVHVTDISGKETIIRITGGMRVKADRDESSPYAAMTAAQDVAKRCKDLGVTSLHIKMRGEGGVYSKTPGPGAQAALRALARANMKIGRIEDVTPIPTDCTKRKGGRRGRRL

Entity 17 Entity 17 polymer

Description description	40S ribosomal protein S15a, putative
Molecular weight formula_weight	14692.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	sr

MVRVNVLADALKSITNAEKQGKRQVMIRPASKVICEFLNVMMKHQYITDYTVVDTHRSGKIVVNLNGRLNKCAVISPRFNVTLSEFDKWEANLLPSRHFGALVLTTSYGILDNTEARAKHTGGRILGFFY

Entity 18 Entity 18 polymer

Description description	40S ribosomal protein S21
Molecular weight formula_weight	9582.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	sx

MASNKKIELYIPRHCSVTHTLIAADDHAAVQILVPHVNENGVILPESTVYTVKGSVRKDGISDHSLNRQFQKDGFLKTVVPKNMMI

Entity 19 Entity 19 polymer

Description description	40S ribosomal protein S23, putative
Molecular weight formula_weight	15745.5 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	sy

MARGLHAARKMLAQRRANKWADKEWKKGKLVTRYKCNPLGTASHAKGLVQEKLGIETKQPNSGIRKCVRVRLLKNGKKITAFVPRDGSLNYVNENDEVLISGFGRRGHAVGDIPGVRFKVVCVAGVSLWGLWTNKKQKPHA

Entity 20 Entity 20 polymer

Description description	40S ribosomal protein S24, putative
Molecular weight formula_weight	16302.7 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	sz

MATQKSEVTIRTRNLIVNPLLCRKQVVVDIYHPGIVQPKFTEIKEKLAKMYKVKDVQTIVLNGFVTKYGGGKTSGFALIYDTLSALKKFVPKHQLIRAGLDKKTKAPRKARKEHKKKWRMCHSFKDYKKKEMKKASRKKK

▶

Resolution resolution	3.10 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	53764

Cryo- EM structure of small subunit (body) of 75S ribosome with P- tRNA from Entamoeba histolytica

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

40S ribosomal protein S26

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 eS27

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 uS2

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 eS1

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

40S ribosomal protein S4, putative

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

40S 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

40S 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

40S 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

Small ribosomal subunit protein uS4

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer