FB2026_03 , released September 17, 2026
Complex: N-TERMINAL ACETYLTRANSFERASE B COMPLEX
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General Information
Name
N-TERMINAL ACETYLTRANSFERASE B COMPLEX
Species
D. melanogaster
Symbol
NATB
FlyBase ID
FBgg0000648
Date last reviewed
2023-08-08
Number of members
2
Description
Description
The N-terminal acetyltransferase B (NatB) complex catalyzes the acetylation of the N-terminal methionine of polypeptides with Met-Asp-, Met-Glu-, Met-Asn- or Met-Gln- N termini. (Adapted from PMID:19660096, PMID:22405572 and FBrf0234437).
Notes on Group

A NatB complex containing the Naa20A catalytic subunit has been experimentally characterized in FBrf0220017. CG31730 and Naa20B may have been derived from Naa20A by retroposition (FBrf0194437, FBrf0225512) and may potentially form alternative NatB complexes.

Source Material
The N-TERMINAL ACETYLTRANSFERASE B COMPLEX Gene Group has been compiled using the following publication(s): Rathore et al., 2016 and Stephan et al., 2012 .
Key Gene Ontology (GO) terms
Molecular Function
protein-N-terminal amino-acid acetyltransferase activity
Biological Process
N-terminal protein amino acid acetylation
Cellular Component
NatB complex
Enzymatic activity
Enzyme name (EC)
N-terminal amino-acid N(alpha)-acetyltransferase NatA (2.3.1.255)
Related Gene Groups
Parent group(s)
N-TERMINAL ACETYLTRANSFERASE COMPLEXES
Members (2)
For all members:
GO ribbon stack
 molecular functionbiological processcellular component
External Data
Synonyms and Secondary IDs
Synonym(s)
NATB
N-TERMINAL ACETYLTRANSFERASE B COMPLEX
N-TERMINAL ACETYLTRANSFERASE B
Secondary FlyBase ID(s)
References (3)