BIOCHEM Exam 2 Enzyme Classifications and (some of) Vitamins

OXIREDUCTASES

TRANSFER OF ELECTRON

TRANSFERASES

GROUP TRANSFER REACTIONS

HYDROLASES

HYDROLYSIS REACTIONS (TRANSFER OF FUNCTIONAL GROUPS TO WATER)

LYASES

ADDITION OF GROUPS TO DOUBLE BONDS, OR ADDITION OF DOUBLE BONDS BY REMOVAL OF GROUPS

ISOMERASES

TRANSFER OF GROUPS WITHIN MOLECULES TO YIELD ISOMERIC FORMS

LIGASES

FORMATION OF C-C, C-S, C-N, C-O BONDS BY CONDENSATION REACTIONS COUPLED TO ATP

B1

THIAMINE

B1 THIAMINE

COENZYME FORM: THIAMINE PYROPHOSPHATE (TPP)
FUNCTION: FORM DECARBOXYLATION AND TRANSKETOLASE REACTIONS

B2

RIBOFLAVIN

B2 RIBOFLAVIN

COENZYME FORM: FAD, FMN
FUNCTION: FOR FLAVOENZYMES WHICH ARE INVOLVED IN REDOX REACTIONS

B3

NIACIN

B3 NIACIN

COENZYME: NAD+ (CATABOLISM - CELLULAR RESPIRATION) , NADP+ (ANABOLIC - REDOX REACTION)
FUNCTION: ELECTRON CARRIERS IN OXIDIATION REDUCATION REACTIONS

B5

PANTOTHENIC ACID

B5 PANTOTHENIC ACID

COENZYME: COENZYME A (CoA) WHICH IS VITAL FOR FATTY ACID METABOLISM AND TCA CYCLE
FUNCTION: CONVERTING MACROMOLECULES INTO ENERGY, SYNTHESIS, AND OXIDATION

B6

PYRIDOXINE

B6 PYRIDOXINE

COENZYME: PYRIDOXAL PHOSPHATE (PLP) USED FOR AMINO ACID AND FATTY ACID METABOLISM, SYNTHESIS OF HEME,
FUNCTION: BINDS TO ENZYME THROUGH SCHIFF BASE

B7

BIOTIN

B7 BIOTIN

COENZME: BIOTIN FUNCTIONING AS A COFACTOR TO AID CO2 GROUP TRANSFER

FUNCTION: HUMANS USE