9Q44 | pdb_00009q44

Pseudomonas aeruginosa 50S ribosome bound to RsfS (L1 stalk in 'out' conformation and missing uL1 and tRNA)

  • Classification: RIBOSOME
  • Organism(s): Pseudomonas aeruginosa PAO1
  • Mutation(s): No 

  • Deposited: 2025-08-19 Released: 2026-08-26 
  • Deposition Author(s): Findlay, J.L., Kanik, M., Gauvin, C.C., Franklin, M.J., Lawrence, C.M.
  • Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), National Science Foundation (NSF, United States), National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.29 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Starting Models: experimental, in silico
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wwPDB Validation 3D Report Full Report

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This is version 1.0 of the entry. See complete history

Literature

RsfS Prevents 70S Formation During Active Cell Growth in P. aeruginosa

Findlay, J.L.Kanik, M.Franklin, M.J.Lawrence, C.M.

To be published.

Macromolecule Content 

  • Total Structure Weight: 1,399.63 kDa 
  • Atom Count: 96,632 
  • Modeled Residue Count: 6,585 
  • Deposited Residue Count: 6,813 
  • Unique protein chains: 31
  • Unique nucleic acid chains: 2

Macromolecules


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Entity ID: 3
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein uL2C [auth D]273Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for Q9HWD8 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 4
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein uL3D [auth E]211Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for Q9HWD5 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 5
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein uL4E [auth F]200Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
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Entity ID: 6
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein uL5F [auth G]179Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
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Entity ID: 7
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein uL6G [auth H]177Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
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Entity ID: 8
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein bL9H [auth I]148Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for Q9HUN2 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 9
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein uL13I [auth L]142Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for Q9HVY2 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 10
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein uL14J [auth M]122Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
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Entity ID: 11
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein uL15K [auth N]144Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
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Entity ID: 12
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein uL16L [auth O]137Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
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Entity ID: 13
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein bL17M [auth P]129Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for O52761 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 14
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein uL18N [auth Q]116Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
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Entity ID: 15
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein bL19O [auth R]116Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for Q9HXQ2 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 16
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein bL20P [auth S]118Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for Q9I0A2 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 17
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein bL21Q [auth T]103Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for Q9HVL6 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 18
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein uL22R [auth U]110Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for Q9HWE0 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 19
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein uL23S [auth V]99Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
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Entity ID: 20
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein uL24T [auth W]104Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for Q9HWE6 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 21
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein bL25U [auth X]204Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
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Entity ID: 22
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein bL27V [auth Y]85Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for Q9HVL7 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 23
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein bL28W [auth Z]78Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for Q9HTN8 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 24
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein uL29X [auth 1]63Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for Q9HWE3 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 25
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein uL30Y [auth 2]58Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for Q9HWF3 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 26
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein bL32Z [auth 4]60Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for Q9HZN4 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 27
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein bL33AA [auth 5]51Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for Q9HTN9 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 28
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein bL34BA [auth 6]44Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for P29436 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 29
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein bL35CA [auth 7]64Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for Q9I0A1 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 30
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein bL36ADA [auth 8]38Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
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Entity ID: 31
MoleculeChains  Sequence LengthOrganismDetailsImage
Ribosomal silencing factor RsfSEA [auth 9]118Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
Find proteins for Q9HX22 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
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Entity ID: 32
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein uL10FA [auth J]166Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
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Entity ID: 33
MoleculeChains  Sequence LengthOrganismDetailsImage
Large ribosomal subunit protein uL10GA [auth K]143Pseudomonas aeruginosa PAO1Mutation(s): 0 
UniProt
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Reference Sequence
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Entity ID: 1
MoleculeChains LengthOrganismImage
23S rRNA2,892Pseudomonas aeruginosa PAO1
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Entity ID: 2
MoleculeChains LengthOrganismImage
5S rRNA121Pseudomonas aeruginosa PAO1
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Reference Sequence

Small Molecules

Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
ZN

Query on ZN



Download:Ideal Coordinates CCD File
BI [auth 8]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
MG

Query on MG



Download:Ideal Coordinates CCD File
AB [auth A]
AC [auth A]
AD [auth A]
AE [auth A]
AF [auth A]
AB [auth A],
AC [auth A],
AD [auth A],
AE [auth A],
AF [auth A],
AG [auth A],
AH [auth A],
AI [auth 4],
BB [auth A],
BC [auth A],
BD [auth A],
BE [auth A],
BF [auth A],
BG [auth A],
BH [auth A],
CB [auth A],
CC [auth A],
CD [auth A],
CE [auth A],
CF [auth A],
CG [auth A],
CH [auth A],
DB [auth A],
DC [auth A],
DD [auth A],
DE [auth A],
DF [auth A],
DG [auth A],
DH [auth A],
EB [auth A],
EC [auth A],
ED [auth A],
EE [auth A],
EF [auth A],
EG [auth A],
EH [auth A],
FB [auth A],
FC [auth A],
FD [auth A],
FE [auth A],
FF [auth A],
FG [auth A],
FH [auth A],
GB [auth A],
GC [auth A],
GD [auth A],
GE [auth A],
GF [auth A],
GG [auth A],
GH [auth A],
HA [auth A],
HB [auth A],
HC [auth A],
HD [auth A],
HE [auth A],
HF [auth A],
HG [auth A],
HH [auth A],
IA [auth A],
IB [auth A],
IC [auth A],
ID [auth A],
IE [auth A],
IF [auth A],
IG [auth A],
IH [auth A],
JA [auth A],
JB [auth A],
JC [auth A],
JD [auth A],
JE [auth A],
JF [auth A],
JG [auth A],
JH [auth A],
KA [auth A],
KB [auth A],
KC [auth A],
KD [auth A],
KE [auth A],
KF [auth A],
KG [auth A],
KH [auth A],
LA [auth A],
LB [auth A],
LC [auth A],
LD [auth A],
LE [auth A],
LF [auth A],
LG [auth A],
LH [auth A],
MA [auth A],
MB [auth A],
MC [auth A],
MD [auth A],
ME [auth A],
MF [auth A],
MG [auth A],
MH [auth A],
NA [auth A],
NB [auth A],
NC [auth A],
ND [auth A],
NE [auth A],
NF [auth A],
NG [auth A],
NH [auth A],
OA [auth A],
OB [auth A],
OC [auth A],
OD [auth A],
OE [auth A],
OF [auth A],
OG [auth A],
OH [auth A],
PA [auth A],
PB [auth A],
PC [auth A],
PD [auth A],
PE [auth A],
PF [auth A],
PG [auth A],
PH [auth A],
QA [auth A],
QB [auth A],
QC [auth A],
QD [auth A],
QE [auth A],
QF [auth A],
QG [auth A],
QH [auth A],
RA [auth A],
RB [auth A],
RC [auth A],
RD [auth A],
RE [auth A],
RF [auth A],
RG [auth A],
RH [auth A],
SA [auth A],
SB [auth A],
SC [auth A],
SD [auth A],
SE [auth A],
SF [auth A],
SG [auth A],
SH [auth A],
TA [auth A],
TB [auth A],
TC [auth A],
TD [auth A],
TE [auth A],
TF [auth A],
TG [auth A],
TH [auth A],
UA [auth A],
UB [auth A],
UC [auth A],
UD [auth A],
UE [auth A],
UF [auth A],
UG [auth A],
UH [auth B],
VA [auth A],
VB [auth A],
VC [auth A],
VD [auth A],
VE [auth A],
VF [auth A],
VG [auth A],
VH [auth B],
WA [auth A],
WB [auth A],
WC [auth A],
WD [auth A],
WE [auth A],
WF [auth A],
WG [auth A],
WH [auth B],
XA [auth A],
XB [auth A],
XC [auth A],
XD [auth A],
XE [auth A],
XF [auth A],
XG [auth A],
XH [auth D],
YA [auth A],
YB [auth A],
YC [auth A],
YD [auth A],
YE [auth A],
YF [auth A],
YG [auth A],
YH [auth E],
ZA [auth A],
ZB [auth A],
ZC [auth A],
ZD [auth A],
ZE [auth A],
ZF [auth A],
ZG [auth A],
ZH [auth S]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.29 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX1.20.1_4487
RECONSTRUCTIONcryoSPARCv4.7.1

Structure Validation

View Full Validation Report



Entry History 

& Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesNIH 1R41GM148117
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesNIH R41GM153173
National Science Foundation (NSF, United States)United StatesNSF DBI-1828765
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesNIH P30GM140963
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesNIH R21 AI154171

Revision History  (Full details and data files)

  • Version 1.0: 2026-08-26
    Type: Initial release