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Overview

Uniprot IDQ96M29
Protein NameTektin-5
Gene NameTEKT5
OrganismHomo sapiens

Kla Sites from experimental identification

Position Flanking peptide
212 LVHDNVEKNLIREVD
265 SAQCIDEKCFNLRNT
304 KFSNDNIKHSQNMRA
389 MAKEGPLKVAQTRLE
467 TLCIDKEKCMGMRKT
473 EKCMGMRKTFPCTPR

Function

Sperm-specific microtubule inner protein (MIP) part of the dynein-decorated doublet microtubules (DMTs) in flagellar axoneme. Forms an extensive interaction network in different conformations that reinforces the helix bundle composed by other tektin proteins (TEKT1 to TEKT4) and MIPs to anchor the tektin bundle onto the tubulin wall of A-tubule of the sperm flagellum

Protein Sequence

10 MEFLGTTQTA 20 SYCGPKKCCG 30 LTSLPAVQAP 40 VIQECYQPYY 50 LPGYRYLNSW 60 RPSLFYKIAN 70 VQTCPDESTS 80 TLRPPTILPT 90 LRSALFSRYS 100 PHDWDQSNQL 110 QVRGAEASRL 120 WASRLTDDSM 130 RLLQDKDQLT 140 HQMQEGTCRN 150 LGQRLSDIGF 160 WKSELSYELD 170 RLLTENQNLE 180 TVKRRLECAA 190 NEVNCPLQVA 200 LECLYHREKR 210 IGIDLVHDNV 220 EKNLIREVDL 230 LKCCQEQMRK 240 LAQRIDIQMR 250 DNRDAQHVLE 260 RDLEDKSSAQ 270 CIDEKCFNLR 280 NTSDCISFFH 290 GMEKIDGTIS 300 VPETWAKFSN 310 DNIKHSQNMR 320 ANSIQLREEA 330 EHLFETLSDQ 340 MWRQFTDTNL 350 AFNARISEVT 360 DVKNKLQTQL 370 AKTLQEIFQA 380 ENTIMLLERS 390 IMAKEGPLKV 400 AQTRLECRTR 410 RPNMELCRDI 420 PQLKLVNEVF 430 TIDDTLQTLK 440 LRLRETQDTL 450 QLLVMTKCRL 460 EHELAIKANT 470 LCIDKEKCMG 480 MRKTFPCTPR LVGHT

Gene Ontology

Classification GO ID Description
Cellular Component GO:0160111 axonemal A tubule inner sheath
Cellular Component GO:0015630 microtubule cytoskeleton
Cellular Component GO:0005634 nucleus
Cellular Component GO:0036126 sperm flagellum
Biological Process GO:0060271 cilium assembly
Biological Process GO:0060294 cilium movement involved in cell motility
Biological Process GO:0030317 flagellated sperm motility

Reference

[1] Yan M, Tu H, Tang S, Gai Z, Shi Q et al.. Lactylated Proteomic Analysis Reveals Functional Implications of Lysine Lactylation In Asthenozoospermia.. Mol Cell Proteomics 24(12):101439. 2025 Dec. PMID: 41192556.