2.3.1.136: polysialic-acid O-acetyltransferase

This is an abbreviated version!
For detailed information about polysialic-acid O-acetyltransferase, go to the full flat file.

Reaction

Synonyms

lecithin:retinol acyltransferase, LRAT, NeuO, OatC, OatWY, polySia specific O-acetyltransferase, polysialic acid O-acetyltransferase, polysialic acid O-AcTase, polysialic acid specific O-acetyltransferase, polysialic acid-specific O-acetyltransferase, polysialic-acid O-acetyltransferase

ECTree

     2 Transferases

         2.3 Acyltransferases

             2.3.1 Transferring groups other than aminoacyl groups

                2.3.1.136 polysialic-acid O-acetyltransferase

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Results	in table
32	AA Sequence
1	CAS Registry Number
5	Cloned(Commentary)
1	Cofactor
2	Crystallization (Commentary)
3	General Information
3	General Stability
1	Inhibitors
2	kcat/KM [mM/s]
12	KM Value [mM]
1	Localization
1	Metals/Ions
4	Molecular Weight [Da]
5	Natural Substrates/ Products (Substrates)
17	Organism
3	PDB ID
5	pH Optimum
28	Protein Variants
5	Purification (Commentary)
2	Reaction
1	Reaction Type
10	Reference
1	Specific Activity [micromol/min/mg]
1	Storage Stability
24	Substrates and Products (Substrate)
7	Subunits
17	Synonyms
1	Systematic Name
5	Temperature Optimum [°C]
1	Temperature Stability [°C]
11	Turnover Number [1/s]

General Information

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General Information on EC 2.3.1.136 - polysialic-acid O-acetyltransferase

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GENERAL INFORMATION

ORGANISM

UNIPROT

COMMENTARY

LITERATURE

evolution

Escherichia coli

-

the homotrimeric enzyme belongs to the left-handed beta-helix family of acyltransferases and is characterized by an unusual funnel-shaped outline

720818

physiological function

Escherichia coli

-

K1 capsule O-acetylation undergoes highfrequency phase-variation involving also the polysialic acid specific O-acetyltransferase

720818

additional information

Escherichia coli

-

the enzymatic activity linearly increases with the length of the N-terminal poly-psi-domain which is composed of a variable number of tandem copies of an RLKTQDS heptad, the poly-psi-domain is not resolved in the crystal structure

720818