| Amidophosphoribosyltransferase | Bacillus subtilis (strain 168) | Catalyzes the formation of phosphoribosylamine from phosphoribosylpyrophosphate (PRPP) and glutamine. | 1 | Details |
| Amidophosphoribosyltransferase | Humans | Catalyzes the formation of phosphoribosylamine from phosphoribosylpyrophosphate (PRPP) and glutamine | 6 | Details |
| Amidophosphoribosyltransferase | Escherichia coli (strain K12) | Catalyzes the formation of phosphoribosylamine from phosphoribosylpyrophosphate (PRPP) and glutamine. Can also use NH... more | 3 | Details |
| Amine oxidase [copper-containing] 3 | Humans | Catalyzes the oxidative deamination of primary amines to the corresponding aldehydes with the concomitant production ... more | 9 | Details |
| Amine oxidase [flavin-containing] A | Humans | Catalyzes the oxidative deamination of primary and some secondary amine such as neurotransmitters, with concomitant r... more | 86 | Details |
| Amine oxidase [flavin-containing] B | Humans | Catalyzes the oxidative deamination of primary and some secondary amines such as neurotransmitters, and exogenous ami... more | 87 | Details |
| Amino acid transporter heavy chain SLC3A1 | Humans | Acts as a chaperone that facilitates biogenesis and trafficking of functional transporter heteromers to the plasma me... more | 1 | Details |
| Amino acid transporter heavy chain SLC3A2 | Humans | Acts as a chaperone that facilitates biogenesis and trafficking of functional transporter heterodimers to the plasma ... more | 1 | Details |
| Aminoacylase-1 | Humans | Aminoacylase involved in the hydrolysis of N-acetylated and N-formylated amino acids. May act sequentially with APEH ... more | 3 | Details |
| Aminodeoxychorismate lyase | Escherichia coli (strain K12) | Involved in the biosynthesis of p-aminobenzoate (PABA), a precursor of tetrahydrofolate. Converts 4-amino-4-deoxychor... more | 1 | Details |
| Aminodeoxychorismate synthase component 1 | Escherichia coli (strain K12) | Part of a heterodimeric complex that catalyzes the two-step biosynthesis of 4-amino-4-deoxychorismate (ADC), a precur... more | 1 | Details |
| Aminoglycoside 2'-N-acetyltransferase | Mycobacterium tuberculosis | May catalyze the coenzyme A-dependent acetylation of the 2' hydroxyl or amino group of a broad spectrum of aminoglyco... more | 4 | Details |
| Aminoglycoside 3'-phosphotransferase | Enterococcus faecalis | Resistance to kanamycin and structurally-related aminoglycosides, including amikacin. | 1 | Details |
| Aminoglycoside 3'-phosphotransferase | Escherichia coli | Resistance to kanamycin and structurally-related aminoglycosides, including amikacin. | 1 | Details |
| Aminoglycoside N(6')-acetyltransferase type 1 | Salmonella enteritidis | Catalyzes the transfer of an acetyl group from acetyl-CoA to the 6'-amino group of aminoglycoside molecules conferrin... more | 3 | Details |
| Aminoglycoside nucleotidyltransferase (4') | Staphylococcus aureus | Inactivates the antibiotic kanamycin by catalyzing the transfer of a nucleotidyl group from nucleoside triphosphates ... more | 1 | Details |
| Aminoimidazole riboside kinase | Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720) | Phosphorylates 5-amino-1-(beta-D-ribosyl)imidazole (AIRs) to form 5-amino-1-(5-phospho-beta-D-ribosyl)imidazole (AIR)... more | 2 | Details |
| Aminomethyltransferase | Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099) | The glycine cleavage system catalyzes the degradation of glycine. | 2 | Details |
| Aminomethyltransferase, mitochondrial | Humans | The glycine cleavage system catalyzes the degradation of glycine | 4 | Details |
| Aminooxidase | Propionibacterium acnes | Not Available | 2 | Details |
| Aminopeptidase B | Humans | Exopeptidase which selectively removes arginine and/or lysine residues from the N-terminus of several peptide substra... more | 1 | Details |
| Aminopeptidase N | Escherichia coli (strain K12) | Aminopeptidase N is involved in the degradation of intracellular peptides generated by protein breakdown during norma... more | 1 | Details |
| Aminopeptidase N | Humans | Broad specificity aminopeptidase which plays a role in the final digestion of peptides generated from hydrolysis of p... more | 6 | Details |
| Aminopeptidase RNPEPL1 | Humans | Broad specificity aminopeptidase which preferentially hydrolyzes an N-terminal methionine, citrulline or glutamine | 1 | Details |
| Aminopeptidase S | Streptomyces griseus | An exopeptidase specific for larger hydrophobic amino acids (especially leucine), no cleavage occurs if the next resi... more | 3 | Details |