Ligand thiocyanate

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Basic Ligand Information

Molecular Structure
Picture of thiocyanate (click for magnification)
Molecular Formula
BRENDA Name
InChIKey
CHNS
thiocyanate
ZMZDMBWJUHKJPS-UHFFFAOYSA-M
Synonyms:
NCS-, rhodanide, SCN+, Thiocyanide


Show all pahtways known for Show all BRENDA pathways known for thiocyanate

Roles as Enzyme Ligand

In Vivo Substrate in Enzyme-catalyzed Reactions (60 results)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
thiocyanate + S-adenosyl-L-methionine = ?
show the reaction diagram
-

In Vivo Product in Enzyme-catalyzed Reactions (3 results)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
thiosulfate + cyanide = sulfite + thiocyanate
show the reaction diagram
-
-

Substrate in Enzyme-catalyzed Reactions (168 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE

Product in Enzyme-catalyzed Reactions (12 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
glucosinolate + H2O = isothiocyanate + thiocyanate + nitrile + epithionitrile + ?
show the reaction diagram
-
-

Activator in Enzyme-catalyzed Reactions (2 results)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
0.01 M
-
maximum activity at 20-40 mM thiocyanate
-

Inhibitor in Enzyme-catalyzed Reactions (86 results)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
weak inhibition, mixed-type inhibition
-
competitive with iodide
-
50 mM, complete loss of activity
-
uncompetitive vs. p-dimethylaminomethylbenzylamine, SCN- is equatorially coordinated to a tetragonal Cu(II) center
-
effective inhibitor
-
10 mM, 53% inhibition. Preincubating for 1 h does not increase the inhibition
-
slightly inhibits
-
competitive
-
mixed-type inhibition
-
95.8% inhibition at 1 M
-
kinetics of cyanase activity at pH 7.5 and 37C
-
weak
-
inactivation due to expansion of the enzyme surface and elongation of the catalytic center
-
complete inhibition
-

Metals and Ions (1 result)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
stimulates peptidase and epoxide hydrolase activity (i.e. conversion of leukotriene A4 into leukotriene B4), SCN- most effective, followed by Cl- and Br-
-

3D Structure of Enzyme-Ligand-Complex (PDB) (236 results)

EC NUMBER
ENZYME 3D STRUCTURE

Enzyme Kinetic Parameters

kcat Value (Turnover Number) (1 result)

EC NUMBER
TURNOVER NUMBER [1/S]
TURNOVER NUMBER MAXIMUM [1/S]
COMMENTARY
LITERATURE
30.5
-
at 21C in 50 mM sodium phosphate buffer, pH 7.4

KM Value (6 results)

EC NUMBER
KM VALUE [MM]
KM VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
0.5
-
in 100 mM phosphate buffer, pH 7.4, at 21C
11
-
-

Ki Value (12 results)

EC NUMBER
KI VALUE [MM]
KI VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
TABLE ID
22
-
pH 9.9
74
70
-
pH 7.5, 25C
1878
2.9
-
30C
8465
8.4
-
pH 7, 37C, competitive inhibitor
39637

IC50 Value (3 results)

EC NUMBER
IC50 VALUE
IC50 VALUE MAXIMUM
COMMENTARY
LITERATURE

References & Links

Links to other databases for thiocyanate

ChEBI
PubChem
ChEBI
PubChem