CATSPER1

Gene

CATSPER1

Protein

Cation channel sperm-associated protein 1

Organism

Homo sapiens

Length

780 amino acids

Function

Voltage-gated calcium channel that plays a central role in calcium-dependent physiological responses essential for successful fertilization, such as sperm hyperactivation, acrosome reaction and chemotaxis towards the oocyte.

Similarity

Belongs to the cation channel sperm-associated (TC 1.A.1.19) family.

Mass

90.091 kDa

Sequence

MDQNSVPEKAQNEADTNNADRFFRSHSSPPHHRPGHSRALHHYELHHHGVPHQRGESHHPPEFQDFHDQALSSHVHQSHHHSEARNHGRAHGPTGFGLAPSQGAVPSHRSYGEDYHDELQRDGRRHHDGSQYGGFHQQSDSHYHRGSHHGRPQYLGENLSHYSSGVPHHGEASHHGGSYLPHGPNPYSESFHHSEASHLSGLQHDESQHHQVPHRGWPHHHQVHHHGRSRHHEAHQHGKSPHHGETISPHSSVGSYQRGISDYHSEYHQGDHHPSEYHHGDHPHHTQHHYHQTHRHRDYHQHQDHHGAYHSSYLHGDYVQSTSQLSIPHTSRSLIHDAPGPAASRTGVFPYHVAHPRGSAHSMTRSSSTIRSRVTQMSKKVHTQDISTKHSEDWGKEEGQFQKRKTGRLQRTRKKGHSTNLFQWLWEKLTFLIQGFREMIRNLTQSLAFETFIFFVVCLNTVMLVAQTFAEVEIRGEWYFMALDSIFFCIYVVEALLKIIALGLSYFFDFWNNLDFFIMAMAVLDFLLMQTHSFAIYHQSLFRILKVFKSLRALRAIRVLRRLSFLTSVQEVTGTLGQSLPSIAAILILMFTCLFLFSAVLRALFRKSDPKRFQNIFTTIFTLFTLLTLDDWSLIYMDSRAQGAWYIIPILVIYIIIQYFIFLNLVITVLVDSFQTALFKGLEKAKQERAARIQEKLLEDSLTELRAAEPKEVASEGTMLKRLIEKKFGTMTEKQQELLFHYLQLVASVEQEQQKFRSQAAVIDEIVDTTFEAGEEDFRN

Protein

Cation channel sperm-associated protein 1: CATSPER1

Gene

Catsper1

Protein

Cation channel sperm-associated protein 1

Organism

Mus musculus

Length

686 amino acids

Function

Voltage-gated calcium channel that plays a central role in sperm cell hyperactivation. Controls calcium entry to mediate the hyperactivated motility, a step needed for sperm motility which is essential late in the preparation of sperm for fertilization. Activated by intracellular alkalinization.

Similarity

Belongs to the cation channel sperm-associated (TC 1.A.1.19) family.

Mass

78.706 kDa

Sequence

MDQSSRRDESYHETHPGSLDPSHQSHPHPHPHPTLHRPNQGGVYYDSPQHGMFQQPYQQHGGFHQQNELQHLREFSDSHDNAFSHHSYQQDRAGVSTLPNNISHAYGGSHPLAESQHSGGPQSGPRIDPNHHPHQDDPHRPSEPLSHPSSTGSHQGTTHQQYHERSHHLNPQQNRDHADTISYRSSTRFYRSHAPFSRQERPHLHADHHHEGHHAHSHHGEHPHHKEQRHYHGDHMHHHIHHRSPSASQLSHKSHSTLATSPSHVGSKSTASGARYTFGARSQIFGKAQSRESLRESASLSEGEDHVQKRKKAQRAHKKAHTGNIFQLLWEKISHLLLGLQQMILSLTQSLGFETFIFIVVCLNTVILVAQTFTELEIRGEWYFMVLDSIFLSIYVLEAVLKLIALGLEYFYDPWNNLDFFIMVMAVLDFVLLQINSLSYSFYNHSLFRILKVFKSMRALRAIRVLRRLSILTSLHEVAGTLSGSLPSITAILTLMFTCLFLFSVVLRALFQDSDPKRFQNIFTTLFTLFTMLTLDDWSLIYIDNRAQGAWYIIPILMIYIVIQYFIFLNLVIAVLVDNFQMALLKGLEKVKLEQAARVHEKLLDDSLTDLNKADANAQMTEEALKMQLIEGMFGNMTVKQRVLHFQFLQLVAAVEQHQQKFRSQAYVIDELVDMAFEAGDDDYGK

Protein

Cation channel sperm-associated protein 1: Catsper1