How is Galactosyltransferase activated?

How is Galactosyltransferase activated?

J. Biochem. 48, 217-228) appears to lack site I and is activated by Ca2+ in the absence of Mn2+.

Where is Galactosyltransferase found?

the Golgi apparatus
The enzyme galactosyltransferase is also an adhesion receptor. This enzyme is a resident protein in the Golgi apparatus where it glycosylates proteins (see Chapter 21).

What is the marker enzyme of Golgi complex?

The marker enzymes for the Golgi apparatus include latent inosine diphosphatase (IDPase) and a number of glycosyl transferases, including glucan synthase I and sterol glucosyl transferase.

What is the marker enzyme of endoplasmic reticulum?

NADPH cytochrome c (cyt c) reductase and glucose-6-phosphatase, two enzymes thought to be restricted to the endoplasmic reticulum (ER) and widely used as ER markers, are present in isolated Golgi fractions assayed immediately after their isolation.

How many Glycosyltransferases are there?

More than 30,000 glycosyltransferase sequences are known across all kingdoms, and they comprise approximately 90 glycosyltransferase families defined by primary sequence analysis.

What is the occurrence of galactose?

Occurrence. Galactose is a monosaccharide and has the same chemical formula as glucose, i.e., C6H12O6. It is similar to glucose in its structure, differing only in the position of one hydroxyl group. Thus, small amounts of lactose and galactose can appear in nondairy foods.

What is the functional group of galactose?

In glucose and galactose, the carbonyl group is on the C1 carbon, forming an aldehyde group. In fructose, the carbonyl group is on the C2 carbon, forming a ketone group.

What is the use of marker enzyme?

Enzyme markers are blood tests that analyze specific enzyme activity in the body. Some inherited diseases or conditions can cause these enzymes to stop working or be less efficient. Monitoring the rise or fall of enzyme levels can aid in the diagnosis of a variety of conditions.