ADP

Adenosine diphosphate

ALC-2

Atrial regulatory light chain

ATP

Adenosine triphosphate

Ca²⁺

Intracellular calcium

CaM

Calmodulin

CaMK

Calmodulin dependant kinase

CaN

Calcineurin

CICR

Calcium induced calcium release

+dP/dtmax

maximal rate of pressure increase

-dP/dtmax

maximal rate of pressure decrease

ECC

Excitation-contraction-coupling

F-actin

Filamentous actin

G-actin

Globular actin

GRK

G protein-coupled receptor kinase

hALC-1

Human atrial essential light chain

hALC-1_HIST

HIS-tagged recombinant hALC-1 protein

hAT

Human atrial tissue SDS-extract

HOCM

Hypertrophic obstructive cardiomyopathy

MHC

Myosin heavy chain

MLC

Myosin light chain

MLC-1

Essential myosin light chain

MLC-2

Regulatory myosin light chain

mRNA

Messenger RNA

MW

Molecular weight

MyBP-C

Myosin-binding-protein C

MyBP-H

Myosin-binding-protein H

NCX

Sodium calcium exchange

NHE

Sodium-proton exchanger

P_i

Inorganic phosphate

PKA

Protein kinase A

PLB

Phospholamban

PP

Protein phosphatase

RyRs

Ryanodine receptors

SDS-PAGE

SDS-polyacrylamide gel electrophoresis

SERCA

Sarcoplasmic reticulum calcium ATPase

SR

Sarcoplasmic reticulum

TGR/hALC-1

Transgenic rats overexpressing human atrial essential light chains

Tm

Tropomyosin

Tn

Troponoin

T-tubule

Transverse tubular system

VLC-1

Ventricular essential light chain

VLC-2

Ventricular regulatory light chain

Vmax

Maximal shortening velocity

WKY

Wistar-Kyoto rats