Sialic acids are a class of alpha-keto acid sugars with a nine-carbon backbone. The term "sialic acid" was first introduced by Swedish biochemist Gunnar Blix in 1952. The most common member of this group is N-acetylneuraminic acid found in animals and some prokaryotes.
Riboflavin synthase is an enzyme that catalyzes the final reaction of riboflavin biosynthesis. It catalyzes the transfer of a four-carbon unit from one molecule of 6,7-dimethyl-8-ribityllumazine onto another, resulting in the synthesis of riboflavin and 5-amino-6-ribitylamino-2,4(1H,3H)-pyrimidinedione:
2-C-Methyl-D-erythritol 2,4-cyclodiphosphate synthase is a zinc-dependent enzyme and a member of the YgbB N terminal protein domain, which participates in the MEP pathway of isoprenoid precursor biosynthesis. It catalyzes the following reaction:
The enzyme 1,4-dihydroxy-2-naphthoyl-CoA synthase catalyzes the sixth step in the biosynthesis of phylloquinone and menaquinone, the two forms of vitamin K. In E. coli, 1,4-dihydroxy-2-naphthoyl-CoA synthase, formerly known as naphthoate synthase, is encoded by menB and uses O-succinylbenzoyl-CoA as a substrate and converts it to 1,4-dihydroxy-2-naphthoyl-CoA.
In molecular biology, the protein domain SAICAR synthase is an enzyme which catalyses a reaction to create SAICAR. In enzymology, this enzyme is also known as phosphoribosylaminoimidazolesuccinocarboxamide synthase. It is an enzyme that catalyzes the chemical reaction
2-Succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate synthase, also known as SHCHC synthase is encoded by the menH gene in Escherichia coli and functions in the synthesis of vitamin K. The specific step in the synthetic pathway that SHCHC synthase catalyzes is the conversion of 5-enolpyruvoyl-6-hydroxy-2-succinylcyclohex-3-ene-1-carboxylate to (1R,6R)-6-hydroxy-2-succinylcyclohexa-2,4-diene-1-carboxylate and pyruvate.
In enzymology, an alpha-N-acetylneuraminate alpha-2,8-sialyltransferase is an enzyme that catalyzes the chemical reaction
In enzymology, a beta-galactoside alpha-2,6-sialyltransferase is an enzyme that catalyzes the chemical reaction
In enzymology, a lactosylceramide alpha-2,3-sialyltransferase is an enzyme that catalyzes the chemical reaction
Alpha-N-acetylneuraminide alpha-2,8-sialyltransferase is an enzyme that in humans is encoded by the ST8SIA1 gene.
5-enolpyruvylshikimate-3-phosphate (EPSP) synthase is an enzyme produced by plants and microorganisms. EPSPS catalyzes the chemical reaction:
UDP-N-acetyl-2-amino-2-deoxyglucuronate dehydrogenase (EC 1.1.1.335, WlbA, WbpB) is an enzyme with systematic name UDP-N-acetyl-2-amino-2-deoxy-alpha-D-glucuronate:NAD+ 3-oxidoreductase. This enzyme catalyses the following chemical reaction:
DTDP-3-amino-3,4,6-trideoxy-alpha-D-glucopyranose N,N-dimethyltransferase is an enzyme with systematic name S-adenosyl-L-methionine:dTDP-3-amino-3,4,6-trideoxy-alpha-D-glucopyranose 3-N,N-dimethyltransferase. This enzyme catalyses the following chemical reaction
UDP-2-acetamido-3-amino-2,3-dideoxy-glucuronate N-acetyltransferase is an enzyme with systematic name acetyl-CoA:UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate N-acetyltransferase. This enzyme catalyses the following chemical reaction
UDP-4-amino-4,6-dideoxy-N-acetyl-beta-L-altrosamine N-acetyltransferase is an enzyme with systematic name acetyl-CoA:UDP-4-amino-4,6-dideoxy-N-acetyl-beta-L-altrosamine N-acetyltransferase. This enzyme catalyses the following chemical reaction
Lipid IVA 3-deoxy-D-manno-octulosonic acid transferase is an enzyme with systematic name CMP-3-deoxy-D-manno-oct-2-ulosonate:lipid IVA 3-deoxy-D-manno-oct-2-ulosonate transferase. This enzyme catalyses the following chemical reaction
Pseudaminic acid synthase (EC 2.5.1.97, PseI, NeuB3) is an enzyme with systematic name phosphoenolpyruvate:2,4-bis(acetylamino)-2,4,6-trideoxy-beta-L-altropyranose transferase (phosphate-hydrolysing, 2,7-acetylamino-transferring, 2-carboxy-2-oxoethyl-forming). This enzyme catalyses the following chemical reaction
CMP-N,N'-diacetyllegionaminic acid synthase is an enzyme with systematic name CTP:N,N'-diacetyllegionaminate cytidylyltransferase. This enzyme catalyses the following chemical reaction
UDP-N,N'-diacetylbacillosamine 2-epimerase (hydrolysing) (EC 3.2.1.184, UDP-Bac2Ac4Ac 2-epimerase, NeuC) is an enzyme with systematic name UDP-N,N'-diacetylbacillosamine hydrolase (2-epimerising). This enzyme catalyses the following chemical reaction
UDP-2,4-diacetamido-2,4,6-trideoxy-beta-L-altropyranose hydrolase (EC 3.6.1.57, PseG, UDP-6-deoxy-AltdiNAc hydrolase, Cj1312) is an enzyme with systematic name UDP-2,4-bis(acetamido)-2,4,6-trideoxy-beta-L-altropyranose hydrolase. This enzyme catalyses the following chemical reaction
