MA3-912 detects sarcoplasmic or endoplasmic reticulum calcium 1 (SERCA1) ATPase in canine, amphibian, human, mouse, rat, and rabbit tissues.
MA3-912 has been successfully used in Western blot and immunofluorescence procedures. By Western blot, this antibody detects an ~110 kDa protein representing SERCA1 ATPase in mouse muscle extracts. Immunofluorescence staining of SERCA1 ATPase in canine skeletal muscle with MA3-912 results in strong labeling of the entire type II (fast) myofiber. MA3-912 has also been shown to inhibit the crystallization of SERCA ATPase induced by vanadate.
The MA3-912 antigen is purified rabbit skeletal muscle sarcoplasmic reticulum. This antibody recognizes an epitope between amino acid residues 506 and the C-terminus of rabbit skeletal muscle ATPase, a region that is exposed in native sarcoplasmic reticulum.
ATP dependent calcium pumps are responsible, in part, for the maintenance of low cytoplasmic free calcium concentrations. The ATP pumps that reside in intracellular organelles are encoded by a family of structurally related enzymes, termed the sarcoplasmic or endoplasmic reticulum calcium ATPases (SERCA). The SERCA1 gene is exclusively expressed in type II (fast) skeletal muscle. The SERCA2 gene is subject to tissue dependent processing which is responsible for the generation of SERCA2a muscle-specific form expressed in type I (slow) skeletal, cardiac and smooth muscle and the SERCA2b isoform expressed in all cell types. The SERCA3 gene is not as well characterized and is found in non-muscle cells.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: ATPase, Ca++ transporting, cardiac muscle, fast twitch 1; ATPase, Ca++ transporting, ubiquitous; Calcium pump 1; Calcium-transporting ATPase sarcoplasmic reticulum type, fast twitch skeletal muscle isoform; Endoplasmic reticulum class 1/2 Ca(2+) ATPase; Sarcoplasmic or Endoplasmic Reticulum Calcium ATPase 1; Sarcoplasmic/endoplasmic reticulum calcium ATPase 1; SERCA1; SR Ca(2+)-ATPase 1
Gene Aliases: ATP2A; ATP2A1; ATP2A3; SERCA1; SERCA1a