Structure of PDB 7acr Chain O

Receptor sequence

>7acrO (length=116) Species: 83333 (Escherichia coli K-12)

DKKSARIRRATRARRKLQELGATRLVVHRTPRHIYAQVIAPNGSEVLVAA
STVEKAIAEQLKYTGNKDAAAAVGKAVAERALEKGIKDVSFDRSGFQYHG
RVQALADAAREAGLQF

3D structure

• PDB: 7acr Structures of tmRNA and SmpB as they transit through the ribosome.
• Chain: O
• Resolution: 3.44 Å

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	rna	O	R9 R10 T12 R13 K17 L18 L21 F92 R94 Q98 Y99 F117	R8 R9 T11 R12 K16 L17 L20 F91 R93 Q97 Y98 F116
BS02	rna	O	K3 R15 R25 H29 R30 T31 P32 R33 H34 Y36 S45 V47 V54 E55 Y64 N67 K68 H100 G101 R102	K2 R14 R24 H28 R29 T30 P31 R32 H33 Y35 S44 V46 V53 E54 Y63 N66 K67 H99 G100 R101
BS03	MG	O	P32 G66	P31 G65

Gene Ontology

Molecular Function

• GO:0003735 structural constituent of ribosome
• GO:0008097 5S rRNA binding
• GO:0019843 rRNA binding

Biological Process

• GO:0002181 cytoplasmic translation
• GO:0006412 translation

Cellular Component

• GO:0005737 cytoplasm
• GO:0005829 cytosol
• GO:0005840 ribosome
• GO:0022625 cytosolic large ribosomal subunit
• GO:1990904 ribonucleoprotein complex

External links

• PDB: RCSB:7acr, PDBe:7acr, PDBj:7acr
• PDBsum: 7acr
• PubMed: 34389707
• UniProt: P0C018|RL18_ECOLI Large ribosomal subunit protein uL18 (Gene Name=rplR)