CATH Classification
Level | CATH Code | Description |
---|---|---|
3 | Alpha Beta | |
3.40 | 3-Layer(aba) Sandwich | |
3.40.630 | Aminopeptidase | |
3.40.630.30 | Gcn5-related N-acetyltransferase (GNAT) |
Domain Context
CATH Clusters
Superfamily | 3.40.630.30 |
Functional Family | N-terminal acetyltransferase complex ARD1 subunit |
Enzyme Information
2.3.1.255 |
N-terminal amino-acid N(alpha)-acetyltransferase NatA.
based on mapping to UniProt P07347
(1) Acetyl-CoA + an N-terminal-glycyl-[protein] = an N-terminal-N(alpha)- acetyl-glycyl-[protein] + CoA. (2) Acetyl-CoA + an N-terminal-L-alanyl-[protein] = an N-terminal- N(alpha)-acetyl-L-alanyl-[protein] + CoA. (3) Acetyl-CoA + an N-terminal-L-seryl-[protein] = an N-terminal- N(alpha)-acetyl-L-seryl-[protein] + CoA. (4) Acetyl-CoA + an N-terminal-L-valyl-[protein] = an N-terminal- N(alpha)-acetyl-L-valyl-[protein] + CoA. (5) Acetyl-CoA + an N-terminal-L-cysteinyl-[protein] = an N-terminal- N(alpha)-acetyl-L-cysteinyl-[protein] + CoA. (6) Acetyl-CoA + an N-terminal-L-threonyl-[protein] = an N-terminal- N(alpha)-acetyl-L-threonyl-[protein] + CoA.
-!- N-terminal-acetylases (NATs) catalyze the covalent attachment of an acetyl moiety from acetyl-CoA to the free alpha-amino group at the N-terminus of a protein. -!- This irreversible modification neutralizes the positive charge at the N-terminus and makes the N-terminal residue larger and more hydrophobic. -!- The NatA complex is found in all eukaryotic organisms, and specifically targets N-terminal Ala, Gly, Cys, Ser, Thr, and Val residues, that became available after removal of the initiator methionine. -!- Formerly EC 2.3.1.88.
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UniProtKB Entries (1)
P12945 |
NAT1_YEAST
Saccharomyces cerevisiae S288C
N-terminal acetyltransferase A complex subunit NAT1
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PDB Structure
PDB | 4XPD |
External Links | |
Method | X-RAY DIFFRACTION |
Organism | |
Primary Citation |
Crystal structure of yeast N-terminal acetyltransferase NatE (ppGpp) in complex with a bisubstrate
To Be Published
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