Skip to Content
Merck
CN

Key Documents

View All Documentation

T7927

L-Tyrosine Decarboxylase Apoenzyme from Streptococcus faecalis

<0.005 unit/mg solid (without pyridoxal 5-phosphate), ≥0.05 unit/mg solid (with excess pyridoxal 5-phosphate)

Synonym(s):

L-(−)-Tyrosine Apodecarboxylase, L-Tyrosine Carboxy-lase apoenzyme, TAD

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

CAS Number:
9002-09-9
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-652-9
MDL number:
MFCD00131472
EC Number:
4.1.1.25 (BRENDA, IUBMB)
Specific activity:
≥0.05 unit/mg solid (with excess pyridoxal 5-phosphate), <0.005 unit/mg solid (without pyridoxal 5-phosphate)
Biological source:
Streptococcus faecalis
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

biological source

Streptococcus faecalis

Quality Segment

200

form

powder

specific activity

≥0.05 unit/mg solid (with excess pyridoxal 5-phosphate), <0.005 unit/mg solid (without pyridoxal 5-phosphate)

storage temp.

−20°C

Application

L-Tyrosine decarboxylase apoenzyme from Streptococcus faecalis has been used:
  • in a study to purify and characterize tyrosine decarboxylase and aromatic-L-amino-acid decarboxylase
  • in a study to investigate the stereospecificity of sodium borohydride reduction of tyrosine decarboxylase
  • in protein synthesis studies

Biochem/physiol Actions

L-Tyrosine Decarboxylase Apoenzyme is an aromatic L-amino acid decarboxylase. The enzyme activity of tyrosine decarboxylase (TDC) is dependent on the cofactor pyridoxal 5-phosphate (PLP). It catalyzes the decarboxylation of dihydroxyphenylalanine.

Other Notes

Dried cells grown on vitamin B6-deficient medium.
One unit will liberate 1.0 μmole of CO2 from L-tyrosine per min at pH 5.5 at 37 °C.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library