Rabbit anti-Human ATP2B4 Polyclonal Antibody

Uniprot Id

P23634

Target Species

Human

Target Name

ATP2B4

Target Full Name

Plasma membrane calcium-transporting ATPase 4

Target Function

Calcium/calmodulin-regulated and magnesium-dependent enzyme that catalyzes the hydrolysis of ATP coupled with the transport of calcium out of the cell. By regulating sperm cell calcium homeostasis, may play a role in sperm motility.

Target Subcellular Location

Cell membrane; Multi-pass membrane protein. Cell projection, cilium, flagellum membrane; Multi-pass membrane protein.

Target Protein Families

Cation transport ATPase (P-type) (TC 3.A.3) family, Type IIB subfamily

Target Tissue Specificity

Isoform XB is the most abundant isoform and is expressed ubiquitously. Isoforms containing segment Z have only been detected in heart, while isoforms containing segment a have been found in heart, stomach and brain cortex.

Target Synonyms

AT2B4_HUMAN; ATP2B2; Atp2b4; ATPase Ca++ transporting plasma membrane 4; Cation transporting ATPase; DKFZp686G08106; DKFZp686M088; Matrix remodelling associated 1; Matrix remodelling associated protein 1; Matrix-remodeling-associated protein 1; MXRA 1; MXRA1; OTTHUMP00000034088; OTTHUMP00000034089; Plasma membrane calcium ATPase 4; Plasma membrane calcium ATPase isoform 4; Plasma membrane calcium pump isoform 4; Plasma membrane calcium transporting ATPase 4; Plasma membrane calcium-transporting ATPase 4; PMCA 4; PMCA4; PMCA4b; PMCA4x; Sarcolemmal calcium pump

Target Background

The protein encoded by this gene belongs to the family of P-type primary ion transport ATPases characterized by the formation of an aspartyl phosphate intermediate during the reaction cycle. These enzymes remove bivalent calcium ions from eukaryotic cells against very large concentration gradients and play a critical role in intracellular calcium homeostasis. The mammalian plasma membrane calcium ATPase isoforms are encoded by at least four separate genes and the diversity of these enzymes is further increased by alternative splicing of transcripts. The expression of different isoforms and splice variants is regulated in a developmental, tissue- and cell type-specific manner, suggesting that these pumps are functionally adapted to the physiological needs of particular cells and tissues. This gene encodes the plasma membrane calcium ATPase isoform 4. Alternatively spliced transcript variants encoding different isoforms have been identified.