Protein Details: Cation channel sperm-associated targeting subunit tau

Protein ID

ICDB_Pro_0958

Protein Name

Cation channel sperm-associated targeting subunit tau

Gene Name

C2CD6; ALS2CR11; CATSPERT

Organism

Homo sapiens (Human)

Length

1820 amino acids

AlphaFoldDB

AF-Q53TS8-F1-model_v4.pdb

Function

Auxiliary component of the CatSper complex; a complex involved in sperm cell hyperactivation. Sperm cell hyperactivation is needed for sperm motility which is essential late in the preparation of sperm for fertilization. Required for CatSper complex targeting and trafficking into the quadrilinear nanodomains. Targets the preassembled CatSper complexes to elongating flagella; where it links the channel-carrying vesicles and motor proteins.

Sequence

MEPPQETNRPFSTLDNRSGQVQVLSATPLLQRNPYSSPDIMHIKGSEASSVPYALNQGTTALPKNKNQEGTGHRLLNMLRKTLKESDSEELEITQETPNLVPFGDVVGCLGIHIKNCRHFMPKISLQHYANLFIRISINKAVKCTKMCSLLSKNDEKNTVIKFDEVKYFSVQVPRRYDDKRNNILLELIQYDNREKRAFLLGSVQIHLYEVIQKGCFIEEVQVLHGNIFVCRLEVEFMFSYGNFGYGFSHQLKPLQKITEPSMFMNLAPPPERTDPVTKVITPQTVEYPAFLSPDLNVTVGTPAVQSSNQPSVVRLEKLQQQPRERLEKMKKEYRNLNTWIDKANYLESILMPKLEHKDSEETNIDEASENTKSNHPEEELENIVGVDIPLVNEEAETTANELLDNDSEKGLTIPTLNQSDQDNSTADASKNDESTPSPTEVHSLCTISNQETIKAGRIPPLGERQSESMPDRKMKNVFFPLEVKLKDNYPSILKADSSLSEVAFSPKEYNSPSFRPEYIEFKPKFQFQKFNKNGFDPFLRNINKMSVRKRKDQDIYKYRNILGAEVIEHEDQDPPYPAQSKTAGPANTTWAHDPNIFTTKMLETENKLAPDPTINTIKGLDTKNSLKENLPNVSLPSIKGESSRAGNVQANTCHLSKSLNFTPHIEYLKQSMILKSILSENLQDLSDKLFSKPEVSMNSEAREKSSSPLLSIHDKSSSSMEDNVLEKKQDLNNWLSEKDILNSKTTLSQIIKNIPADSFSEGSQIIENIPADSLLEGGQVIKNIPEYSLSEGGQIIKNIPADSFLESGPGQSPEVEEHVSKKHFEADERDFPIKKNSSTKKKHLISEVPNSKSGSSGTVHDYIMRQIFTAPIFSELEIEVKEPSETPMNLENQLPTPWKRSLSSHILFHEENADEIELPQPRSATSQIIQAFPIDTLLESGIIKVIELDKEHHKSSLLGTGITSPKGNLKDSQEYYSEIRSETEPLSEQSIPIIPKDTTSVSRAEFIQEDQNMFPQDSSYYSIANKELYLPRNGQRLCKDKNDLSSTLESLTNSLMDKLSESDEIMLKSFLKNIFNVFFKYNHSERRGQPEKELERLIQPSFTSDTEHLEELQEDFDKADKLDRKPILSPKLRVFLEELSESEVKHLKSELSKQIQHYLVERLSESGHITKEDLPKIYQNLYLMNEKAEQKGPNSFQGKYSETVKEIMSFVNNFNHHFIDKHLEIKLRSFLKEILQNYFLKNISESSLFNETASETIYPNISSLRTKSVSISFHELEQDISKGSFGRRFEINMKYPLSKSLQNYLIALSENELLHLKADLSKHLQSLFIEKLSKSGLMTKKQLEGINQHINLLNSSSIPLKYIKTHLPFRDDCHFVEKHSEKQNKYSRIVQQTTLQTVSEDKLREAELIREKEKKYFPLQNLKGNSSLIKEQKSYYTKEEAKTPSLIKVQPSSNENIQASPLSKSSEILTDILLKKLRKEHVFTQLPQAENSVHKTEIQDPYSWGGKSKITQSKAWCEKTLKMKSLDRKEHVNIYKWTVQEKPEAVLTSYPRIPNARMPREDEYLNRITFPSWQSSTLTHFNTETGEKSKLEDQYCQTLKGNNNNNKKHLVTFAQYKKEIQTLYIKPDEICSEKCAKFPEIQSFQYKVVEDEKNLKPHLFPELFKIEDLKPKVRKERDRVAQPKKSFNKIVRILPTTLPTTRIHLKKSVPRTLLHWTARRTIHDCSDKFEDLHDMTSFTHLKKVKSRSRLLGKSSDDIHNHARHSARPYTAPEVNKQRESYSGKFTSRRMVSSGLVHINDKTSDYEMHKMRPKKIKRGY

PDB Structures

Ligand Binding

1. DICL_CP

2. DICL_Pep

Binding Site

Disease

Spermatogenic Failure and Male Infertility Due To Globozoospermia

Location

Expressed in testis (at protein level)

DOI ID

10.1038/ng1285; 10.1186/1471-2164-8-399; 10.1038/nature03466; 10.1101/gr.2596504; 10.1126/science.1133427; 10.1016/j.celrep.2021.110226; 10.1093/humrep/dez246

RefSeq

NP_001161688.1 [Q53TS8-2]; NP_001161689.1 [Q53TS8-3]; NP_001161693.1 [Q53TS8-4]; NP_689738.3 [Q53TS8-1]; XP_011509038.1 [Q53TS8-2]