| 4-hydroxy-3-methylbut-2-enyl diphosphate reductase | Escherichia coli (strain K12) | Catalyzes the conversion of 1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate (HMBPP) into a mixture of isopentenyl diph... more | 2 | Details |
| 4-hydroxy-tetrahydrodipicolinate reductase | Mycobacterium tuberculosis | Catalyzes the conversion of 4-hydroxy-tetrahydrodipicolinate (HTPA) to tetrahydrodipicolinate. Can use both NADH and ... more | 1 | Details |
| 4-hydroxy-tetrahydrodipicolinate reductase | Escherichia coli (strain K12) | Catalyzes the conversion of 4-hydroxy-tetrahydrodipicolinate (HTPA) to tetrahydrodipicolinate. Can use both NADH and ... more | 2 | Details |
| 4-hydroxy-tetrahydrodipicolinate synthase | Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099) | Catalyzes the condensation of (S)-aspartate-beta-semialdehyde [(S)-ASA] and pyruvate to 4-hydroxy-tetrahydrodipicolin... more | 1 | Details |
| 4-hydroxybenzoyl-CoA thioesterase | Pseudomonas sp. (strain CBS-3) | Hydrolyzes 4-hydroxybenzoate-CoA, and to a lesser extent benzoyl-CoA and 4-chlorobenzoate-CoA. Not active against ali... more | 3 | Details |
| 4-hydroxybenzoyl-CoA thioesterase | Arthrobacter sp. | Not Available | 4 | Details |
| 4-hydroxybutyryl-CoA dehydratase/vinylacetyl-CoA-Delta-isomerase | Clostridium aminobutyricum | Catalyzes the reversible conversion of 4-hydroxybutyryl-CoA to crotonyl-CoA. The mechanism of the reaction seems to g... more | 1 | Details |
| 4-hydroxymandelate synthase | Amycolatopsis orientalis | Required to synthesize hydroxyphenylglycine, a recurring skeletal component of nonproteinogenic macrocyclic peptide a... more | 1 | Details |
| 4-hydroxyphenylpyruvate dioxygenase | Streptomyces avermitilis (strain ATCC 31267 / DSM 46492 / JCM 5070 / NCIMB 12804 / NRRL 8165 / MA-4680) | Not Available | 1 | Details |
| 4-hydroxyphenylpyruvate dioxygenase | Humans | Catalyzes the conversion of 4-hydroxyphenylpyruvic acid to homogentisic acid, one of the steps in tyrosine catabolism... more | 4 | Details |
| 4-hydroxythreonine-4-phosphate dehydrogenase | Escherichia coli (strain K12) | Catalyzes the NAD(P)-dependent oxidation of 4-(phosphooxy)-L-threonine (HTP) into 2-amino-3-oxo-4-(phosphooxy)butyric... more | 1 | Details |
| 4-trimethylaminobutyraldehyde dehydrogenase | Humans | Converts gamma-trimethylaminobutyraldehyde into gamma-butyrobetaine with high efficiency (in vitro). Can catalyze the... more | 1 | Details |
| 40S ribosomal protein S19 | Plasmodium falciparum (isolate 3D7) | Not Available | 1 | Details |
| 40S ribosomal protein S21 | Plasmodium falciparum (isolate 3D7) | Not Available | 1 | Details |
| 40S ribosomal protein S3 | Plasmodium falciparum (isolate 3D7) | Not Available | 1 | Details |
| 40S ribosomal protein S5, putative | Plasmodium falciparum (isolate 3D7) | Not Available | 1 | Details |
| 45 kDa immediate-early protein 2 | Human cytomegalovirus (strain Towne) | Activates the E1.7 promoter. This activation is augmented by the IE1 protein. It down-regulates the transcription of ... more | 1 | Details |
| 5'(3')-deoxyribonucleotidase, cytosolic type | Humans | Dephosphorylates the 5' and 2'(3')-phosphates of deoxyribonucleotides, with a preference for dUMP (Ref.12). Also deph... more | 1 | Details |
| 5'(3')-deoxyribonucleotidase, mitochondrial | Humans | Dephosphorylates preferentially the 5'- and 2'(3')-phosphates of uracil and thymine (deoxy)ribonucleotide monophospha... more | 2 | Details |
| 5'-AMP-activated protein kinase | Rat | Not Available | 5 | Details |
| 5'-AMP-activated protein kinase | Humans | Not Available | 19 | Details |
| 5'-AMP-activated protein kinase catalytic subunit alpha-1 | Humans | Catalytic subunit of AMP-activated protein kinase (AMPK), an energy sensor protein kinase that plays a key role in re... more | 9 | Details |
| 5'-AMP-activated protein kinase subunit beta-1 | Humans | Non-catalytic subunit of AMP-activated protein kinase (AMPK), an energy sensor protein kinase that plays a key role i... more | 9 | Details |
| 5'-AMP-activated protein kinase subunit gamma-1 | Humans | AMP/ATP-binding subunit of AMP-activated protein kinase (AMPK), an energy sensor protein kinase that plays a key role... more | 6 | Details |
| 5'-methylthioadenosine/S-adenosylhomocysteine nucleosidase | Escherichia coli (strain K12) | Catalyzes the irreversible cleavage of the glycosidic bond in both 5'-methylthioadenosine (MTA) and S-adenosylhomocys... more | 5 | Details |