AC   MF_01468;
DC   Protein; auto
TR   HAMAP; MF_01468; -; 1; level=0
XX
Names: RNase_Mini_III
XX
ID   MRNC
DE   RecName: Full=Mini-ribonuclease 3;
DE            Short=Mini-RNase 3;
DE            Short=Mini-3;
DE            EC=3.1.26.-;
DE   AltName: Full=Mini-RNase III;
DE            Short=Mini-III;
GN   Name=mrnC;
XX
CC   -!- FUNCTION: Involved in correct processing of both the 5' and 3' ends of
CC       23S rRNA precursor. Processes 30S rRNA precursor transcript even in
CC       absence of ribonuclease 3 (Rnc); Rnc processes 30S rRNA into smaller
CC       rRNA precursors.
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC   -!- SUBUNIT: Homodimer.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm.
CC   -!- SIMILARITY: Belongs to the MrnC RNase family.
XX
DR   Pfam; PF00636; Ribonuclease_3; 1; trigger=no
DR   PIRSF; PIRSF005520; UCP005520; 1; trigger=no
XX
KW   Cytoplasm
KW   Endonuclease
KW   Hydrolase
KW   Magnesium
KW   Nuclease
KW   Ribosome biogenesis
KW   RNA-binding
KW   rRNA processing
KW   rRNA-binding
XX
GO   GO:0019843; F:rRNA binding
GO   GO:0006364; P:rRNA processing
GO   GO:0042254; P:ribosome biogenesis
GO   GO:0005737; C:cytoplasm
XX
FT   From: MRNC_BACSU (O31418)
FT   ACT_SITE        23
FT   Condition: D
XX
Size: 110-170;
Related: None;
Template: O31418; Q81J58;
Scope:
 Bacteria; Cyanobacteriota
 Bacteria; Bacillota
 Bacteria; Fusobacteriota
 Bacteria; Mycoplasmatota
 Bacteria; Thermotogae
Fusion:
 Nter: None
 Cter: None
Duplicate: None
Plasmid: None
Comments: Fusobacteriota (FUSNN and ILYPC) have F or Y instead of conserved
 E in a possibly catalytically important active site and are considered
 atypical.
XX
# Revision 1.8 2023/02/17
//