Catsper4 Rabbit Polyclonal Antibody

Specifications

Product Data
Applications	WB
Recommend Dilution	WB: 1:200-1:2000
Reactivity	Mouse, Rat
Host	Rabbit
Clonality	Polyclonal
Immunogen	Peptide (C)NSYLGQKHYELFSTID, corresponding to amino acid residues 90-105 of mouse CatSper4. 1st extracellular loop.
Formulation	Lyophilized. Concentration before lyophilization ~0.8mg/ml (lot dependent, please refer to CoA along with shipment for actual concentration). Buffer before lyophilization: phosphate buffered saline (PBS), pH 7.4, 1% BSA, 0.05% NaN3.
Reconstitution Method	Add 50 ul double distilled water (DDW) to the lyophilized powder.
Purification	Affinity purified on immobilized antigen.
Conjugation	Unconjugated
Storage Condition	Store at -20°C as received.
Gene Name	cation channel, sperm associated 4
Database Link	NP_808534 Entrez Gene 362623 RatEntrez Gene 329954 Mouse UniProt ID Q8BVN3
Background	During mammalian fertilization, Ca2+ signaling plays a central role in sperm capacitation and motility to the fusion between sperm and egg. Several Ca2+-permeable ion channel proteins have been characterized in mammalian sperm. However, only the four mammalian CatSper members (CatSpers 1-4) are restrictively expressed in the testis and are clearly shown to be required for male fertility. CatSper channels are named after the first putative cation channel of sperm. CatSper4 contains a single ion transport domain comprised of 6 transmembrane spanning regions, where the fourth transmembrane region resembles a voltage sensor and a pore forming region lies between transmembrane regions 5 and 6. The pore contains the consensus sequence TÃ?DÃ?W indicative of a probable Ca2+ selective channel. The four CatSper proteins are primarily localized to the plasma membrane of the distal portion of the sperm tail and presumably form a heterotetrameric, pH- and voltage-dependent Ca2+-permeable channel . CatSper 4 is highly expressed in testis and expressed at low levels in placenta and lung. Male mice deficient in any of the four CatSper are completely sterile but exhibit no other apparent abnormality. The major phenotypes of the sperm are a lack of hyperactivated motility, a gradual loss of motility after isolation, and an inability to penetrate zona-intact eggs.
Synonyms	MGC149223
Reference Data

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