Cover Page

Practical Enzymology

Hans Bisswanger

Third Edition

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Preface to the Third Edition

This book is composed of two main parts, a general introduction into working with enzymes and a practical part including special protocols for investigating enzymes, such as enzyme assays, methods for protein determination, and enzyme immobilization. While for the general part fundamental alterations are not required and only corrections and refinements are executed, far‐reaching changes are realized for the practical part, which represents the centerpiece of the book. Particularly, numerous enzyme assays and methods for metal determination are supplemented, although this will not completely dispel the principal problem that any special selection of particular assay protocols cannot satisfy all expectations. As far as possible, suggestions of colleagues have been considered. Special thanks in this respect owes to Dr. Apostolos Zarros, University of Glasgow.

A companion web site (www.wiley-vch.de/home/enzymology) provides animations for all figures together with supplementary material for deeper understanding of the partially abstract matter.

Tübingen, June 2019

Hans Bisswanger

List of Abbreviations and Symbols

Only repeatedly used abbreviations, special abbreviations are defined at the respective section.

A
absorption
[A]
ligand concentration
[A]0
total ligand concentration
A, B, C
specific binding ligands
ABTS
2,2′‐azino‐bis‐3‐ethylbenzothiazoline‐6‐sulfonic acid
ADH
alcohol dehydrogenase
ANS
anilinonaphthalene sulfonate
BAPNA
N′‐benzoyl‐L‐arginine‐p‐nitroanilide
BCA
bicinchoninic acid
BSA
bovine serum albumin
CDI
carbonyldiimidazol
CoA
coenzyme A
CPG
controlled pore glass
d
density
DMSO
dimethylsulfoxide
DPIP
2,6‐dichlorophenolindophenol
DTE
dithioerythritol
DTNB
5,5′‐dithio‐bis(2‐nitrobenzoic acid), Ellman's reagent
DTT
dithiothreitol, Cleland's reagent
E, [E]
enzyme, enzyme concentration
[E]0
total enzyme concentration
εnm
absorption (“extinction”) coefficient at the wavelength indicated
εr
dielectric constant
EDTA
ethylenediaminetetraacetic acid
EIA
enzyme immunoassays
ELISA
enzyme‐linked immunoadsorbent assays
FAD
flavin adenine dinucleotide
FMN
flavin mononucleotide
GOD
glucose oxidase
h
Planck's constant
HK
hexokinase
I
light intensity
IU
International enzyme unit (μmol min−1)
k
rate constant
kat
Katal (mol s−1)
k cat
catalytical constant
K d
dissociation constant
K m
Michaelis constant
LDH
lactate dehydrogenase
M r
relative molecule mass
MDH
malate dehydrogenase
n
number of subunits
NAD
nicotinamide adenine dinucleotide 1
NADH
reduced nicotinamide adenine dinucleotide1
NADP
nicotinamide adenine dinucleotide phosphate1
NADPH
reduced nicotinamide adenine dinucleotide phosphate1
ONPG
o‐nitrophenyl β‐D‐galactopyranoside
ORD
optical rotatory dispersion
P, Q, R
products
PAGE
polyacrylamide gel electrophoresis
PBS
phosphate buffered saline
PEG
polyethylene glycol
PLP
pyridoxal 5‐phosphate
PMSF
phenylmethylsulfonyl fluoride
POD
peroxidase
R
gas constant (8.3145 J mol−1 K−1)
RIA
radioimmunoassay
RN
recommended name
rpm
rotations per min
RT
room temperature
S
substrate
SA
specific enzyme activity
SDS
sodium dodecyl sulfate
SN
systematic name
ThDP
thiamine diphosphate
TCA
trichloroacetic acid
TRIS
tris(hydroxymethyl)aminomethane
ν
reaction velocity
V
maximum reaction velocity
ν i
initial reaction velocity

Note