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List of articles in "Biomolecule" category - Page 1574

Trifunctional purine biosynthetic protein adenosine-3

Trifunctional purine biosynthetic protein adenosine-3 is an enzyme that in humans is encoded by the GART gene.This protein is a trifunctional polypeptide. It has phosphoribosylglycinamide formyltransferase (EC 6.3.4.13) phosphoribosylglycinamide synthetase […]


Phosphoribosylaminoimidazole carboxylase

Phosphoribosylaminoimidazole carboxylase (or AIR carboxylase) is an enzyme involved in nucleotide biosynthesis and in particular in purine biosynthesis. It catalyzes the conversion of 5′-phosphoribosyl-5-aminoimidazole (AIR) into 5′-phosphoribosyl-4-carboxy-5-aminoimidazole (CAIR) as described […]


Adenosylmethionine decarboxylase

Adenosylmethionine decarboxylase is an enzyme that catalyzes the conversion of S-adenosyl methionine to S-adenosylmethioninamine.Polyamines such as spermidine and spermine are essential for cellular growth under most conditions being implicated in […]


Cystathionine gamma-lyase

Cystathionine gamma-lyase (or cystathionase) is an enzyme which breaks down cystathionine into cysteine and α-ketobutyrate. Pyridoxal phosphate is a prosthetic group of this enzyme.


Adenosylhomocysteinase

Adenosylhomocysteinase (EC 3.3.1.1 S-adenosylhomocysteine synthase S-adenosylhomocysteine hydrolase adenosylhomocysteine hydrolase S-adenosylhomocysteinase SAHase AdoHcyase) is an enzyme that converts S-adenosylhomocysteine to homocysteine and adenosine. This enzyme catalyses the following chemical reaction S-adenosyl-L-homocysteine […]


Neuregulin 1

Neuregulin 1 or NRG1 is a protein that in humans is encoded by the NRG1 gene. NRG1 is one of four proteins in the neuregulin family that act on the […]


Sib RNA

Sib RNA refers to a group of related non-coding RNA. They were originally named QUAD RNA after they were discovered as four repeat elements in Escherichia coli intergenic regions. The […]


7SK RNA

In molecular biology 7SK is an abundant small nuclear RNA found in metazoans. It plays a role in regulating transcription by controlling the positive transcription elongation factor P-TEFb. 7SK is […]


Guanine deaminase

Guanine deaminase (EC 3.5.4.3 guanase guanine aminase GAH guanine aminohydrolase) is an enzyme which converts guanine to xanthine.


Uracil phosphoribosyltransferase

Uracil phosphoribosyltransferase is an enzyme which creates UMP from uracil and phosphoribosylpyrophosphate. This protein may use the morpheein model of allosteric regulation.


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