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Literature summary for 2.7.7.38 extracted from

  • Kim, S.; Jo, S.; Kim, M.S.; Shin, D.H.
    A study of Rose Bengal against a 2-keto-3-deoxy-D-manno-octulosonate cytidylyltransferase as an antibiotic candidate (2020), J. Enzyme Inhib. Med. Chem., 35, 1414-1421 .
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expressed in Escherichia coli BL21(DE3) cells Burkholderia thailandensis
expressed in Escherichia coli BL21(DE3) cells Chlamydia psittaci
expressed in Escherichia coli BL21(DE3) cells Burkholderia pseudomallei
expressed in Escherichia coli BL21(DE3) cells Pseudomonas aeruginosa

Inhibitors

Inhibitors Comment Organism Structure
4,5,6,7-tetrachloro-2',4',5',7'-tetraiodofluorescein Rose Bengal, competitive with 2-keto-3-deoxy-D-manno-octulosonate but non-competitive against CTP Burkholderia pseudomallei
4,5,6,7-tetrachloro-2',4',5',7'-tetraiodofluorescein Rose Bengal, competitive with 2-keto-3-deoxy-D-manno-octulosonate but non-competitive against CTP Burkholderia thailandensis
4,5,6,7-tetrachloro-2',4',5',7'-tetraiodofluorescein Rose Bengal, competitive with 2-keto-3-deoxy-D-manno-octulosonate but non-competitive against CTP Pseudomonas aeruginosa
additional information not inhibited by 4,5,6,7-tetrachloro-2',4',5',7'-tetraiodofluorescein Chlamydia psittaci

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.056
-
3-deoxy-D-manno-octulosonate at pH 7.5 and 25°C Burkholderia thailandensis
0.059
-
3-deoxy-D-manno-octulosonate at pH 7.5 and 25°C Burkholderia pseudomallei
0.061
-
3-deoxy-D-manno-octulosonate at pH 7.5 and 25°C Pseudomonas aeruginosa
0.0983
-
CTP at pH 7.5 and 25°C Pseudomonas aeruginosa
0.1111
-
CTP at pH 7.5 and 25°C Burkholderia pseudomallei
0.1239
-
CTP at pH 7.5 and 25°C Burkholderia thailandensis

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ 10 mM used in assay conditions Burkholderia thailandensis
Mg2+ 10 mM used in assay conditions Chlamydia psittaci
Mg2+ 10 mM used in assay conditions Burkholderia pseudomallei
Mg2+ 10 mM used in assay conditions Pseudomonas aeruginosa

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
CTP + 3-deoxy-D-manno-octulosonate Burkholderia thailandensis
-
diphosphate + CMP-3-deoxy-D-manno-octulosonate
-
?
CTP + 3-deoxy-D-manno-octulosonate Chlamydia psittaci
-
diphosphate + CMP-3-deoxy-D-manno-octulosonate
-
?
CTP + 3-deoxy-D-manno-octulosonate Burkholderia pseudomallei
-
diphosphate + CMP-3-deoxy-D-manno-octulosonate
-
?
CTP + 3-deoxy-D-manno-octulosonate Pseudomonas aeruginosa
-
diphosphate + CMP-3-deoxy-D-manno-octulosonate
-
?
CTP + 3-deoxy-D-manno-octulosonate Burkholderia pseudomallei K96243
-
diphosphate + CMP-3-deoxy-D-manno-octulosonate
-
?

Organism

Organism UniProt Comment Textmining
Burkholderia pseudomallei Q63WL5
-
-
Burkholderia pseudomallei K96243 Q63WL5
-
-
Burkholderia thailandensis
-
-
-
Chlamydia psittaci A0A2D2D9V4
-
-
Pseudomonas aeruginosa A0A0C7D0B2
-
-

Purification (Commentary)

Purification (Comment) Organism
Hi-trap Q column chromatography Burkholderia thailandensis
Hi-trap Q column chromatography Chlamydia psittaci
Hi-trap Q column chromatography Burkholderia pseudomallei
Hi-trap Q column chromatography Pseudomonas aeruginosa

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
CTP + 3-deoxy-D-manno-octulosonate
-
Burkholderia thailandensis diphosphate + CMP-3-deoxy-D-manno-octulosonate
-
?
CTP + 3-deoxy-D-manno-octulosonate
-
Chlamydia psittaci diphosphate + CMP-3-deoxy-D-manno-octulosonate
-
?
CTP + 3-deoxy-D-manno-octulosonate
-
Burkholderia pseudomallei diphosphate + CMP-3-deoxy-D-manno-octulosonate
-
?
CTP + 3-deoxy-D-manno-octulosonate
-
Pseudomonas aeruginosa diphosphate + CMP-3-deoxy-D-manno-octulosonate
-
?
CTP + 3-deoxy-D-manno-octulosonate
-
Burkholderia pseudomallei K96243 diphosphate + CMP-3-deoxy-D-manno-octulosonate
-
?

Subunits

Subunits Comment Organism
? x * 29500, calculated from amino acid sequence Pseudomonas aeruginosa
? x * 28500, calculated from amino acid sequence Burkholderia thailandensis
? x * 30400, calculated from amino acid sequence Chlamydia psittaci
? x * 30000, calculated from amino acid sequence Burkholderia pseudomallei

Synonyms

Synonyms Comment Organism
2-keto-3-deoxy-D-manno-octulosonate cytidylyltransferase
-
Burkholderia thailandensis
2-keto-3-deoxy-D-manno-octulosonate cytidylyltransferase
-
Chlamydia psittaci
2-keto-3-deoxy-D-manno-octulosonate cytidylyltransferase
-
Burkholderia pseudomallei
2-keto-3-deoxy-D-manno-octulosonate cytidylyltransferase
-
Pseudomonas aeruginosa
KdsB
-
Burkholderia thailandensis
KdsB
-
Chlamydia psittaci
KdsB
-
Burkholderia pseudomallei
KdsB
-
Pseudomonas aeruginosa

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
76.8
-
melting temperature of the native enzyme Burkholderia pseudomallei

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
0.076
-
3-deoxy-D-manno-octulosonate at pH 7.5 and 25°C Pseudomonas aeruginosa
0.088
-
3-deoxy-D-manno-octulosonate at pH 7.5 and 25°C Burkholderia pseudomallei
0.116
-
3-deoxy-D-manno-octulosonate at pH 7.5 and 25°C Burkholderia thailandensis
0.132
-
CTP at pH 7.5 and 25°C Pseudomonas aeruginosa
0.142
-
CTP at pH 7.5 and 25°C Burkholderia thailandensis
0.167
-
CTP at pH 7.5 and 25°C Burkholderia pseudomallei

IC50 Value

IC50 Value IC50 Value Maximum Comment Organism Inhibitor Structure
0.00531
-
at pH 7.5 and 25°C Burkholderia pseudomallei 4,5,6,7-tetrachloro-2',4',5',7'-tetraiodofluorescein
0.00724
-
at pH 7.5 and 25°C Burkholderia thailandensis 4,5,6,7-tetrachloro-2',4',5',7'-tetraiodofluorescein
0.01466
-
at pH 7.5 and 25°C Pseudomonas aeruginosa 4,5,6,7-tetrachloro-2',4',5',7'-tetraiodofluorescein