8SNB image
Deposition Date 2023-04-26
Release Date 2023-06-28
Last Version Date 2024-11-13
Entry Detail
PDB ID:
8SNB
Keywords:
STRUCTURAL PROTEIN
Title:
atomic model of sea urchin sperm doublet microtubule (48-nm periodicity)
Biological Source:
Source Organism:
Strongylocentrotus purpuratus (Taxon ID: 7668)
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
3.30 Å
Aggregation State:
FILAMENT
Reconstruction Method:
SINGLE PARTICLE
8SNB validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:CFAP96(C4orf47)
Chain IDs:A (auth: 1A), B (auth: 1B)
Chain Length:251
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7TH36 Pfam ID:PF15239
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Coiled-coil domain-containing protein 105
Chain IDs:C (auth: 1E), D (auth: 1F), E (auth: 1G), F (auth: 1H)
Chain Length:448
Number of Molecules:4
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RBY5 Pfam ID:PF03148
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Coiled-coil domain-containing protein 81
Chain IDs:G (auth: 1K), H (auth: 1L), I (auth: 1M), DA (auth: 1v), EA (auth: 1w), FA (auth: 1x), GA (auth: 1y), HA (auth: 1z), VA (auth: 2a)
Chain Length:696
Number of Molecules:9
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7PGM9 Pfam ID:PF14908, PF18289
Protein Blast
Polymer Type:polypeptide(L)
Molecule:FAM166C
Chain IDs:J (auth: 1P), K (auth: 1Q)
Chain Length:204
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RHZ2 Pfam ID:PF10629
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Protein FAM166B
Chain IDs:L (auth: 1T), M (auth: 1U), N (auth: 1V), O (auth: 1W)
Chain Length:429
Number of Molecules:4
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7HL38 Pfam ID:PF10629
Protein Blast
Polymer Type:polypeptide(L)
Molecule:CFAP144(FAM183A)
Chain IDs:P (auth: 1Y)
Chain Length:696
Number of Molecules:1
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7GGZ7 Pfam ID:PF14886
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Outer dense fiber protein 3
Chain IDs:Q (auth: 1a), R (auth: 1b), FC (auth: 5E), GC (auth: 5F), HC (auth: 5G), IC (auth: 5H), JC (auth: 5I), KC (auth: 5J), LC (auth: 5K), MC (auth: 5L), NC (auth: 5M), OC (auth: 5N), PC (auth: 5O)
Chain Length:251
Number of Molecules:13
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RI41 Pfam ID:PF07004
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Tex33
Chain IDs:S (auth: 1d)
Chain Length:359
Number of Molecules:1
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7NRA7 Pfam ID:PF15400
Protein Blast
Polymer Type:polypeptide(L)
Molecule:C20Orf85
Chain IDs:T (auth: 1f), U (auth: 1g)
Chain Length:206
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7HL88 Pfam ID:PF14945
Protein Blast
Polymer Type:polypeptide(L)
Molecule:ATP6V1FNB
Chain IDs:V (auth: 1i), W (auth: 1j), RE (auth: 9M), SE (auth: 9N), TE (auth: 9O)
Chain Length:188
Number of Molecules:5
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7GIN5 Pfam ID:PF22589
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Tex26(LOC100888047)
Chain IDs:X (auth: 1l), Y (auth: 1m)
Chain Length:176
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7GGC2 Pfam ID:PF22581
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Meiosis-specific nuclear structural protein 1
Chain IDs:Z (auth: 1o), AA (auth: 1p), BA (auth: 1q), CA (auth: 1r)
Chain Length:142
Number of Molecules:4
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7NFX5
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Enkurin domain-containing protein
Chain IDs:IA (auth: 2A), JA (auth: 2B), KA (auth: 2C), LA (auth: 2D)
Chain Length:696
Number of Molecules:4
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RFW1 Pfam ID:PF13864
Protein Blast
Polymer Type:polypeptide(L)
Molecule:CFAP107
Chain IDs:MA (auth: 2G)
Chain Length:235
Number of Molecules:1
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RF95 Pfam ID:PF22595
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cilia- and flagella-associated protein 126
Chain IDs:NA (auth: 2J), OA (auth: 2K), PA (auth: 2L)
Chain Length:141
Number of Molecules:3
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7NA77 Pfam ID:PF22611
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Flagellar FliJ protein
Chain IDs:QA (auth: 2O)
Chain Length:120
Number of Molecules:1
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7LW98 Pfam ID:PF15104
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Meiosis-specific nuclear structural protein 1
Chain IDs:RA (auth: 2R), SA (auth: 2S)
Chain Length:499
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7REB1 Pfam ID:PF13868
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cilia- and flagella-associated protein 161
Chain IDs:TA (auth: 2V), UA (auth: 2W)
Chain Length:292
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RAY9
Protein Blast
Polymer Type:polypeptide(L)
Molecule:CFA20 domain-containing protein
Chain IDs:WA (auth: 3A), XA (auth: 3B), YA (auth: 3C), ZA (auth: 3D), AB (auth: 3E), BB (auth: 3F), CB (auth: 3G)
Chain Length:195
Number of Molecules:7
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7SUA7 Pfam ID:PF05018
Protein Blast
Polymer Type:polypeptide(L)
Molecule:EF-hand domain-containing protein
Chain IDs:DB (auth: 3J), EB (auth: 3K)
Chain Length:592
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RFU1 Pfam ID:PF13499
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Trichohyalin-plectin-homology domain-containing protein
Chain IDs:FB (auth: 3N), GB (auth: 3O)
Chain Length:560
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7REW2 Pfam ID:PF13868
Protein Blast
Polymer Type:polypeptide(L)
Molecule:CFAP276
Chain IDs:HB (auth: 3R), IB (auth: 3S), JB (auth: 3T)
Chain Length:172
Number of Molecules:3
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RBR2 Pfam ID:PF12494
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cilia- and flagella-associated protein 45
Chain IDs:KB (auth: 3W), LB (auth: 3X), MB (auth: 3Y), NB (auth: 3Z)
Chain Length:541
Number of Molecules:4
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7NFL8 Pfam ID:PF13868
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cilia- and flagella-associated protein 52
Chain IDs:OB (auth: 4A), PB (auth: 4B), QB (auth: 4C)
Chain Length:635
Number of Molecules:3
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7NV05 Pfam ID:PF00400
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Trichohyalin-plectin-homology domain-containing protein
Chain IDs:RB (auth: 4F), SB (auth: 4G)
Chain Length:516
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RHS4 Pfam ID:PF13868
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Nucleoside diphosphate kinase
Chain IDs:TB (auth: 4J), UB (auth: 4K)
Chain Length:380
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7SX53 Pfam ID:PF00334
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cilia- and flagella-associated protein 77
Chain IDs:VB (auth: 4N), WB (auth: 4O), XB (auth: 4P), YB (auth: 4Q)
Chain Length:243
Number of Molecules:4
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7TG06 Pfam ID:PF14825
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cilia- and flagella-associated protein 97
Chain IDs:ZB (auth: 4T), AC (auth: 4U), BC (auth: 4V)
Chain Length:231
Number of Molecules:3
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7GHD6 Pfam ID:PF13879
Protein Blast
Polymer Type:polypeptide(L)
Molecule:HeLo_like_N(LOC577943)
Chain IDs:CC (auth: 4Y)
Chain Length:302
Number of Molecules:1
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RHW6
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Outer dense fiber protein 3
Chain IDs:DC (auth: 5A), EC (auth: 5B), YE (auth: 9Y), ZE (auth: 9Z)
Chain Length:277
Number of Molecules:4
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RDG4 Pfam ID:PF07004
Protein Blast
Polymer Type:polypeptide(L)
Molecule:PACRG
Chain IDs:QC (auth: 6A), RC (auth: 6B), SC (auth: 6C), TC (auth: 6D), UC (auth: 6E), VC (auth: 6F)
Chain Length:236
Number of Molecules:6
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7REU1 Pfam ID:PF10274
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Pierce1
Chain IDs:WC (auth: 6I), XC (auth: 6J)
Chain Length:123
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7GRL1 Pfam ID:PF14892
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Protein phosphatase 1 regulatory subunit 32
Chain IDs:YC (auth: 6M), ZC (auth: 6N)
Chain Length:469
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7P181 Pfam ID:PF15691
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RIB35
Chain IDs:AD (auth: 6Q), BD (auth: 6R)
Chain Length:310
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7THB5
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RIB43A-like with coiled-coils protein 2
Chain IDs:CD (auth: 6U), DD (auth: 6V), ED (auth: 6W), FD (auth: 6X)
Chain Length:379
Number of Molecules:4
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RDQ5 Pfam ID:PF05914
Protein Blast
Polymer Type:polypeptide(L)
Molecule:EF-hand domain-containing family member C2
Chain IDs:GD (auth: 7A), HD (auth: 7B), ID (auth: 7C), JD (auth: 7D)
Chain Length:744
Number of Molecules:4
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RHU7 Pfam ID:PF06565
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Flagellar protofilament ribbon protein rib74
Chain IDs:KD (auth: 7G), LD (auth: 7H), MD (auth: 7I)
Chain Length:645
Number of Molecules:3
Biological Source:Strongylocentrotus purpuratus
UniProt ID:Q6TXM2 Pfam ID:PF06565
Protein Blast
Polymer Type:polypeptide(L)
Molecule:SAXO3(LOC115918676)
Chain IDs:ND (auth: 7M), OD (auth: 7N)
Chain Length:322
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7THD0
Protein Blast
Polymer Type:polypeptide(L)
Molecule:TEPP protein
Chain IDs:PD (auth: 7Q), QD (auth: 7R)
Chain Length:185
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7N5A5 Pfam ID:PF22574
Polymer Type:polypeptide(L)
Molecule:SPATA48
Chain IDs:RD (auth: 7U), SD (auth: 7V)
Chain Length:200
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Sperm-associated antigen 8
Chain IDs:TD (auth: 7Y), UD (auth: 7Z)
Chain Length:204
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7N7W6 Pfam ID:PF22584
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Testicular haploid expressed gene protein-like
Chain IDs:VD (auth: 8A)
Chain Length:268
Number of Molecules:1
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RFU8 Pfam ID:PF14912
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Tektin
Chain IDs:WD (auth: 8D), XD (auth: 8E), YD (auth: 8F), ZD (auth: 8G)
Chain Length:462
Number of Molecules:4
Biological Source:Strongylocentrotus purpuratus
UniProt ID:Q9U0E3 Pfam ID:PF03148
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Tektin
Chain IDs:AE (auth: 8J), BE (auth: 8K), CE (auth: 8L), DE (auth: 8M), EE (auth: 8N)
Chain Length:430
Number of Molecules:5
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7SXG5 Pfam ID:PF03148
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Tektin
Chain IDs:FE (auth: 8Q), GE (auth: 8R), HE (auth: 8S), IE (auth: 8T), JE (auth: 8U)
Chain Length:402
Number of Molecules:5
Biological Source:Strongylocentrotus purpuratus
UniProt ID:Q26623 Pfam ID:PF03148
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Tex43
Chain IDs:KE (auth: 8X), LE (auth: 8Y), ME (auth: 8Z)
Chain Length:119
Number of Molecules:3
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7G0R8 Pfam ID:PF14983
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Tex36(CFAP95, C9orf135)
Chain IDs:NE (auth: 9A)
Chain Length:220
Number of Molecules:1
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RBC4 Pfam ID:PF15139
Protein Blast
Polymer Type:polypeptide(L)
Molecule:CFAP90(C5orf49)
Chain IDs:OE (auth: 9D)
Chain Length:171
Number of Molecules:1
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7SYJ8 Pfam ID:PF15074
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Tex49
Chain IDs:PE (auth: 9G)
Chain Length:150
Number of Molecules:1
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RDT3 Pfam ID:PF22593
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Tex49_homologue(LOC580808)
Chain IDs:QE (auth: 9J)
Chain Length:179
Number of Molecules:1
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RFU3
Protein Blast
Polymer Type:polypeptide(L)
Molecule:CFAP68(UPF0686, C11orf1)
Chain IDs:UE (auth: 9R)
Chain Length:153
Number of Molecules:1
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RBK2 Pfam ID:PF06608
Protein Blast
Polymer Type:polypeptide(L)
Molecule:SPATA45
Chain IDs:VE (auth: 9T)
Chain Length:83
Number of Molecules:1
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RHE9
Protein Blast
Polymer Type:polypeptide(L)
Molecule:C4orf45
Chain IDs:WE (auth: 9V), XE (auth: 9W)
Chain Length:294
Number of Molecules:2
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RHI6 Pfam ID:PF15123
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Tubulin alpha chain
Chain IDs:AF (auth: AA), BF (auth: AB), EF (auth: AE), GF (auth: AG), IF (auth: AI), KF (auth: AK), MF (auth: AM), NF (auth: BA), OF (auth: BB), RF (auth: BE), TF (auth: BG), VF (auth: BI), XF (auth: BK), ZF (auth: BM), AG (auth: CA), BG (auth: CB), EG (auth: CE), GG (auth: CG), IG (auth: CI), KG (auth: CK), MG (auth: CM), NG (auth: DA), OG (auth: DB), RG (auth: DE), TG (auth: DG), VG (auth: DI), XG (auth: DK), ZG (auth: DM), AH (auth: EA), CH (auth: EC), EH (auth: EE), GH (auth: EG), IH (auth: EI), KH (auth: EK), NH (auth: FA), OH (auth: FB), RH (auth: FE), TH (auth: FG), VH (auth: FI), XH (auth: FK), AI (auth: GA), BI (auth: GB), EI (auth: GE), GI (auth: GG), II (auth: GI), KI (auth: GK), NI (auth: HA), OI (auth: HB), RI (auth: HE), TI (auth: HG), VI (auth: HI), XI (auth: HK), AJ (auth: IA), BJ (auth: IB), EJ (auth: IE), GJ (auth: IG), IJ (auth: II), KJ (auth: IK), MJ (auth: IM), NJ (auth: JA), OJ (auth: JB), RJ (auth: JE), TJ (auth: JG), VJ (auth: JI), XJ (auth: JK), AK (auth: KA), BK (auth: KB), EK (auth: KE), GK (auth: KG), IK (auth: KI), KK, NK (auth: LA), OK (auth: LB), RK (auth: LE), TK (auth: LG), VK (auth: LI), XK (auth: LK), AL (auth: MA), BL (auth: MB), EL (auth: ME), GL (auth: MG), IL (auth: MI), KL (auth: MK), LL (auth: ML), NL (auth: NA), OL (auth: NB), RL (auth: NE), TL (auth: NG), VL (auth: NI), YL (auth: NL), AM (auth: OA), BM (auth: OB), EM (auth: OE), GM (auth: OG), IM (auth: OI), KM (auth: OK), LM (auth: OL), NM (auth: PA), OM (auth: PB), RM (auth: PE), TM (auth: PG), VM (auth: PI), XM (auth: PK), YM (auth: PL), AN (auth: QA), BN (auth: QB), EN (auth: QE), GN (auth: QG), IN (auth: QI), KN (auth: QK), LN (auth: QL), NN (auth: RA), ON (auth: RB), RN (auth: RE), TN (auth: RG), VN (auth: RI), XN (auth: RK), YN (auth: RL), AO (auth: SA), BO (auth: SB), EO (auth: SE), GO (auth: SG), IO (auth: SI), KO (auth: SK), NO (auth: TA), OO (auth: TB), RO (auth: TE), TO (auth: TG), VO (auth: TI), XO (auth: TK), AP (auth: UA), BP (auth: UB), EP (auth: UE), GP (auth: UG), IP (auth: UI), KP (auth: UK), NP (auth: VA), OP (auth: VB), RP (auth: VE), TP (auth: VG), VP (auth: VI), XP (auth: VK), AQ (auth: WA), BQ (auth: WB), EQ (auth: WE), GQ (auth: WG), IQ (auth: WI), KQ (auth: WK)
Chain Length:451
Number of Molecules:148
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7RGW6 Pfam ID:PF00091, PF03953
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Tubulin beta chain
Chain IDs:CF (auth: AC), DF (auth: AD), FF (auth: AF), HF (auth: AH), JF (auth: AJ), LF (auth: AL), PF (auth: BC), QF (auth: BD), SF (auth: BF), UF (auth: BH), WF (auth: BJ), YF (auth: BL), CG (auth: CC), DG (auth: CD), FG (auth: CF), HG (auth: CH), JG (auth: CJ), LG (auth: CL), PG (auth: DC), QG (auth: DD), SG (auth: DF), UG (auth: DH), WG (auth: DJ), YG (auth: DL), BH (auth: EB), DH (auth: ED), FH (auth: EF), HH (auth: EH), JH (auth: EJ), LH (auth: EL), MH (auth: EM), PH (auth: FC), QH (auth: FD), SH (auth: FF), UH (auth: FH), WH (auth: FJ), YH (auth: FL), ZH (auth: FM), CI (auth: GC), DI (auth: GD), FI (auth: GF), HI (auth: GH), JI (auth: GJ), LI (auth: GL), MI (auth: GM), PI (auth: HC), QI (auth: HD), SI (auth: HF), UI (auth: HH), WI (auth: HJ), YI (auth: HL), ZI (auth: HM), CJ (auth: IC), DJ (auth: ID), FJ (auth: IF), HJ (auth: IH), JJ (auth: IJ), LJ (auth: IL), PJ (auth: JC), QJ (auth: JD), SJ (auth: JF), UJ (auth: JH), WJ (auth: JJ), YJ (auth: JL), ZJ (auth: JM), CK (auth: KC), DK (auth: KD), FK (auth: KF), HK (auth: KH), JK (auth: KJ), LK (auth: KL), MK (auth: KM), PK (auth: LC), QK (auth: LD), SK (auth: LF), UK (auth: LH), WK (auth: LJ), YK (auth: LL), ZK (auth: LM), CL (auth: MC), DL (auth: MD), FL (auth: MF), HL (auth: MH), JL (auth: MJ), ML (auth: MM), PL (auth: NC), QL (auth: ND), SL (auth: NF), UL (auth: NH), WL (auth: NJ), XL (auth: NK), ZL (auth: NM), CM (auth: OC), DM (auth: OD), FM (auth: OF), HM (auth: OH), JM (auth: OJ), MM (auth: OM), PM (auth: PC), QM (auth: PD), SM (auth: PF), UM (auth: PH), WM (auth: PJ), ZM (auth: PM), CN (auth: QC), DN (auth: QD), FN (auth: QF), HN (auth: QH), JN (auth: QJ), MN (auth: QM), PN (auth: RC), QN (auth: RD), SN (auth: RF), UN (auth: RH), WN (auth: RJ), ZN (auth: RM), CO (auth: SC), DO (auth: SD), FO (auth: SF), HO (auth: SH), JO (auth: SJ), LO (auth: SL), MO (auth: SM), PO (auth: TC), QO (auth: TD), SO (auth: TF), UO (auth: TH), WO (auth: TJ), YO (auth: TL), ZO (auth: TM), CP (auth: UC), DP (auth: UD), FP (auth: UF), HP (auth: UH), JP (auth: UJ), LP (auth: UL), MP (auth: UM), PP (auth: VC), QP (auth: VD), SP (auth: VF), UP (auth: VH), WP (auth: VJ), YP (auth: VL), ZP (auth: VM), CQ (auth: WC), DQ (auth: WD), FQ (auth: WF), HQ (auth: WH), JQ (auth: WJ), LQ (auth: WL)
Chain Length:447
Number of Molecules:150
Biological Source:Strongylocentrotus purpuratus
UniProt ID:A0A7M7NS69 Pfam ID:PF00091, PF03953
Ligand Molecules
GDP
GTP
MG
Primary Citation
Structural specializations of the sperm tail.
Cell 186 2880 ? (2023)
PMID: 37327785 DOI: 10.1016/j.cell.2023.05.026

Abstact

Sperm motility is crucial to reproductive success in sexually reproducing organisms. Impaired sperm movement causes male infertility, which is increasing globally. Sperm are powered by a microtubule-based molecular machine-the axoneme-but it is unclear how axonemal microtubules are ornamented to support motility in diverse fertilization environments. Here, we present high-resolution structures of native axonemal doublet microtubules (DMTs) from sea urchin and bovine sperm, representing external and internal fertilizers. We identify >60 proteins decorating sperm DMTs; at least 15 are sperm associated and 16 are linked to infertility. By comparing DMTs across species and cell types, we define core microtubule inner proteins (MIPs) and analyze evolution of the tektin bundle. We identify conserved axonemal microtubule-associated proteins (MAPs) with unique tubulin-binding modes. Additionally, we identify a testis-specific serine/threonine kinase that links DMTs to outer dense fibers in mammalian sperm. Our study provides structural foundations for understanding sperm evolution, motility, and dysfunction at a molecular level.

Legend

Protein

Chemical

Disease

Primary Citation of related structures
8SNB