9V10: Cilia- and flagella-associated protein 95

Cryo-EM structure of the 48-nm repeat doublet microtubule from mouse sperm. Determined by electron microscopy at 3.7 Å resolution. Released 27 May 2026.

Method: Electron microscopy
Resolution: 3.7 Å
Organism: Mus musculus
Chains: 589
Atoms: 1,603,403
Mol. weight: 27941.67 kDa
Ligands: GTP, MG, GDP, ATP
Released: 27 May 2026

Explore 9V10 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

9V10 contains 7,920 α-helices and 5,136 β-strands across 582 chains. Residue ranges use sequence positions (label_seq_id) from RCSB, which can differ from the residue numbers in the file. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain 0: 4 helices, 0 β-strands

Element	Residues	Length
α-helix	30-35	6
α-helix	50-55	6
α-helix	56-58	3
α-helix	90-101	12

Chain 1: 21 helices, 3 β-strands

Element	Residues	Length	Sheet
α-helix	416-421	6
α-helix	425-435	11
α-helix	436-445	10
α-helix	478-486	9
α-helix	487-496	10
β-strand	499-501	3	AA1
α-helix	502-512	11
α-helix	544-551	8
α-helix	561-583	23
α-helix	586-594	9
α-helix	602-613	12
α-helix	618-630	13
α-helix	638-646	9
α-helix	655-660	6
α-helix	688-690	3
β-strand	692-694	3	AA2
β-strand	702-704	3	AA2
α-helix	720-727	8
α-helix	768-774	7
α-helix	776-781	6
α-helix	784-790	7
α-helix	793-805	13
α-helix	809-823	15
α-helix	830-845	16

Chain 2: 11 helices, 0 β-strands

Element	Residues	Length
α-helix	293-299	7
α-helix	311-319	9
α-helix	337-341	5
α-helix	352-358	7
α-helix	363-375	13
α-helix	377-382	6
α-helix	415-421	7
α-helix	425-435	11
α-helix	436-445	10
α-helix	479-486	8
α-helix	487-496	10

Chain 3: 4 helices, 0 β-strands

Element	Residues	Length
α-helix	33-83	51
α-helix	83-119	37
α-helix	122-160	39
α-helix	162-465	304

Chain 4: 1 helix, 0 β-strands

Element	Residues	Length	Sheet
α-helix	382-493	112

Chain 5: 18 helices, 18 β-strands

Element	Residues	Length	Sheet
β-strand	27-34	8	AA3
β-strand	39-48	10	AA3
β-strand	53-58	6	AA3
β-strand	64-70	7	AA3
α-helix	75-79	5
β-strand	84-87	4	AA4
β-strand	90-93	4	AA4
β-strand	96-97	2	AA3
α-helix	100-106	7
β-strand	110-114	5	AA5
α-helix	118-122	5
α-helix	124-135	12
β-strand	138-146	9	AA5
α-helix	148-156	9
α-helix	164-173	10
β-strand	177-185	9	AA5
α-helix	186-196	11
α-helix	199-207	9
α-helix	210-215	6
α-helix	229-241	13
β-strand	250-251	2	AA5
β-strand	258-263	6	AA7
α-helix	265-270	6
α-helix	272-282	11
β-strand	286-287	2	AA6
β-strand	286-287	2	AA7
β-strand	291-293	3	AA6
α-helix	296-304	9
α-helix	313-324	12
β-strand	326-332	7	AA6
β-strand	326-332	7	AA7
α-helix	339-345	7
α-helix	348-356	9
α-helix	359-364	6
β-strand	373-374	2	AA7
α-helix	380-391	12

Chain 6: 19 helices, 14 β-strands

Element	Residues	Length	Sheet
β-strand	26-34	9	AA8
β-strand	39-48	10	AA8
β-strand	53-58	6	AA8
β-strand	64-70	7	AA8
β-strand	84-87	4	AA9
β-strand	90-93	4	AA9
β-strand	96-97	2	AA8
α-helix	101-106	6
β-strand	110-114	5	AB1
α-helix	118-122	5
α-helix	124-133	10
α-helix	134-136	3
β-strand	138-145	8	AB1
α-helix	150-156	7
α-helix	164-173	10
β-strand	177-185	9	AB1
α-helix	186-196	11
α-helix	199-206	8
α-helix	210-215	6
α-helix	229-241	13
β-strand	260-263	4	AB2
α-helix	264-270	7
α-helix	272-282	11
β-strand	286-293	8	AB2
α-helix	296-301	6
α-helix	313-322	10
β-strand	326-332	7	AB2
α-helix	335-345	11
α-helix	348-356	9
α-helix	359-363	5
β-strand	374-375	2	AB2
α-helix	380-385	6
α-helix	385-391	7

Chain 7: 5 helices, 0 β-strands

Element	Residues	Length
α-helix	50-57	8
α-helix	90-101	12
α-helix	153-159	7
α-helix	210-218	9
α-helix	219-221	3

569 more chain groups are not listed. Open the entry in the viewer and use the sequence panel to see them.

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
Cilia- and flagella-associated protein 95	0, 7	protein	228	Mus musculus	Q9CQC3 (AlphaFold model)
EF-hand domain-containing family member B	1, 2	protein	853	Mus musculus	Q8CDU5 (AlphaFold model)
Cilia- and flagella-associated protein 53	3, 4	protein	514	Mus musculus	Q9D439 (AlphaFold model)
Nucleoside diphosphate kinase homolog 7	5, 6, j1	protein	395	Mus musculus	Q9QXL8 (AlphaFold model)
Cilia- and flagella-associated protein 107	8	protein	196	Mus musculus	Q4KKZ1
Cilia- and flagella-associated protein 141	A, N1	protein	101	Mus musculus	Q9D9D9
Tektin-1	A0, A1, A2, A3, A4, A5	protein	418	Mus musculus	Q9DAJ2
Tubulin alpha-3 chain	AA, AC, AE, AG, AI, AK, AM, AO, BC, BE, BG, BI, BK, BM, BO, CC, CE, CG, CI, CK, CM, CO, DC, DE, DG, DI, DK, DM, DO, EA, EC, EE, EG, EI, EK, EM, FC, FE, FG, FI, FK, FM, GC, GE, GG, GI, GK, GM, GO, HC, HE, HG, HI, HK, HM, HO, IC, IE, IG, II, IK, IM, IO, JC, JE, JG, JI, JK, JM, JO, JQ, KA, KC, KE, KG, KI, KK, KM, KO, LA, LC, LE, LG, LI, LK, LM, LO, MA, MC, ME, MG, MI, MK, MM, MO, NA, NC, NE, NG, NI, NK, NM, NO, OC, OE, OG, OI, OK, OM, OO, PC, PE, PG, PI, PK, PM, PO, QC, QE, QG, QI, QK, QM, QO, RC, RE, RG, RI, RK, RM, RO, SA, SC, SE, SG, SI, SK, SM, TA, TC, TE, TG, TI, TK, TM, UA, UC, UE, UG, UI, UK, UM, VA, VC, VE, VG, VI, VK, VM, VO, WC, WE, WG, WI, WK, WM, WO	protein	450	Mus musculus	P05214
Tubulin beta-4B chain	AB, AD, AF, AH, AJ, AL, AN, AP, BB, BD, BF, BH, BJ, BL, BN, BP, CD, CF, CH, CJ, CL, CN, CP, DD, DF, DH, DJ, DL, DN, DP, EB, ED, EF, EH, EJ, EL, EN, FB, FD, FF, FH, FJ, FL, FN, GB, GD, GF, GH, GJ, GL, GN, HB, HD, HF, HH, HJ, HL, HN, IB, ID, IF, IH, IJ, IL, IN, IP, JD, JF, JH, JJ, JL, JN, JP, KB, KD, KF, KH, KJ, KL, KN, KP, LB, LD, LF, LH, LJ, LL, LN, LP, MB, MD, MF, MH, MJ, ML, MN, MP, NB, ND, NF, NH, NJ, NL, NN, NP, OB, OD, OF, OH, OJ, OL, ON, OP, PB, PD, PF, PH, PJ, PL, PN, PP, QD, QF, QH, QJ, QL, QN, QP, RD, RF, RH, RJ, RL, RN, RP, SB, SD, SF, SH, SJ, SL, SN, TB, TD, TF, TH, TJ, TL, TN, UB, UD, UF, UH, UJ, UL, UN, VB, VD, VF, VH, VJ, VL, VN, WB, WD, WF, WH, WJ, WL, WN	protein	445	Mus musculus	P68372
Sperm axonemal maintenance protein CFAP97D1	Aa, Ab, Ac	protein	164	Mus musculus	Q9DAN9
Meiosis-specific nuclear structural protein 1	B, C	protein	491	Mus musculus	Q61884
Tektin-2	B0, B1, B2, B3, B4, B5, R0, R1, R2, R3, R4, R5	protein	430	Mus musculus	Q922G7

48 more molecules are not listed.

Sequence of entity 1 (0, 7), FASTA

>9V10_1 Cilia- and flagella-associated protein 95 (chains 0, 7)
MGTFDSQCHECFESKERWYEIGPTDLLERKGSLTLRSHHKKYSEPVLVYSWHRNREAFPK
DYDIESLETVKNLCMSTYKRFGSDSPRWMSEAREQMAQVLVNKDLVEKKKTGLLDEETLC
PGILERDPELPPTGFRDVPMESPPDPRKPCFSTTYSEDFTPQYEYPPPACPRREEYSIVH
RKCRSQFTDLNGSKRLGINTWHDESGIYANSEAKQKLYALARNPIVPF

Sequence of entity 2 (1, 2), FASTA

>9V10_2 EF-hand domain-containing family member B (chains 1, 2)
MCSFVRVGSPKPLQTSASPLEMSSLRRTRAPEISELGLTPEQKDDIRDRVLRGSKSPTEL
GFDLRLEQDRKWRERMGSSEAKSPPCHALGVGLERHTISGTPTEMGNLGLHKGSAFQGSK
PLGVLPGRVGPENKGLPPRLRYGGTLHPPFSTVHASPLAAESRRRPLAWGSAWTDAVVEK
QPVVGLELRKEPEKEPTCVVMNPYPEMPPKEVDIGLPQTQESDEAKNTEPLIGLVREPSE
CPFAQQPEEKKEPGSTEPGVEPPGNIRPIYSGKFFDRVPCWPSAGKVKPVGYRVATCLTE
KLPRLMTPPEAKKYFNFRYPPAGAERVFYGRANDPQIAPYLTHGLRSKISIPMGSLINPQ
PITTFQQKIKDKKESIYFSHQRAPLGKSHDQTPGLPKGMDVINTTLGTPTIRELSVRDTV
NPSKSFEDVLKEGQEGHDLYTVSHNDYFAGEAKNRKYNPASFHRFNLYGIPTPHFNDGRT
MAKALHWLHELQMERGAKIVSKRVDDFKEKFQHKLGKVLDPIAETMNVPPGHTFGSCLHP
EEYGAGDLIHYRSPDEYLRGKDHQRAVVAAARHHLKKFNHQNFDTLQVAFRHYDKKGDGV
IDRAELHEACVQANLHLDKMLLDHLFDYCDVDQDGLINYLEFANFLNWKDRIPLKEHEKR
VVVKGKKPDCENVTDTSMGEAEPSLLINPEDIVPKEPGSSEETLRTIQRPGDKVSHQYKT
TSSEINAVVGAVPSMCHPIFGVPTIRSDISAPRIRRVSDMNNYGDEGNAYSLLHPSIFSQ
KGVFERDFFKTRSKEEISDILTNIGVKLSKEEFENVWNLASKKHQRGEVCVETIRNVLDE
LLHADLVKCKTAM

Sequence of entity 3 (3, 4), FASTA

>9V10_3 Cilia- and flagella-associated protein 53 (chains 3, 4)
MYSQQFGTVPREFKGPTPKAVIIRAKPPKAQRAEQHLKRIQRSYHKYHTTLASIKSNEEN
RLKCDWIQRNNHKTFDSLVQARVQDAMQGFVINTEERRNKLRELLASEENEYFSEMQLKG
ETIEEKKDKMRERTKLLREKKEKERQEFVAEKLDQQFRERCEELRTKLASIHEKKVVEER
NAQIEFNKELKRQKLVEEHLFARLWEEDRLAKERREAQEEKRQRELVQNTRLGLDAQVTS
IQAQRQGARRMKEEEARILEQNKAQIKREDEQEKLQKQKRRQETRSSLKKAVQDKIESMQ
REYREDLDLNMKLVGRALQDLQDEADKKKQKREEMGREQKIYNDYLMQRREEEKAQEKEL
NRLLEDIKAKKLAEKDRELALQRAARKQLMNEVMNTRKLQVQERLQRKLREQEELALHEQ
RISESLKVLHQEDMEDFARRCALAEEYRNQLQMQIAHQQQAREAEKEEERQEFEAGLAAN
KACLDKIQRILSENQALSQNVHPMRRGYPDKPPL

Sequence of entity 4 (5, 6, j1), FASTA

>9V10_4 Nucleoside diphosphate kinase homolog 7 (chains 5, 6, j1)
MRACQQGRSSSLVSPYMAPKNQSERFAFIAEWYDPNASLLRRYELLFYPVDGSVEMHDVK
NRRTFLKRTKYEDLRLEDLFIGNKVNVFSRQLVLIDYGDQYTARQLGSRKEKTLALIKPD
AVSKAGEIIEMINKSGFTITKLRMMTLTRKEAADFHVDHHSRPFYNELIQFITSGPVIAM
EILRDDAICEWKRLLGPANSGLSRTDAPGSIRALFGTDGVRNAAHGPDTFASAAREMELF
FPSSGGCGPANTAKFTNCTCCIIKPHAISEGMLGKNLIAIRDACFGMSAIQMFNLDRANV
EEFYEVYKGVVSEYNDMVTELCSGPCVAIEIQQSNPTKTFREFCGPADPEIARHLRPETL
RAIFGKTKVQNAVHCTDLPEDGLLEVQYFFKILDN

Sequence of entity 5 (8), FASTA

>9V10_5 Cilia- and flagella-associated protein 107 (chains 8)
MAMLSTSVVPEAFSTPGWQIEKKYSTKVLLGNWVEERGKFTKAIDHTPQCIYRKEYVPMP
DHRPDFVSRWYSKSKMEGLPYKHLITHHQEPSHRYLISTYDDHYNRHNYNPGLPALRTWN
GQKLLWLPEKSDFPLVAPPTNYGLLEQLQQKWLASKTSLKESIYTTSYPRLPVCAMSRRE
HAIPVPHPRLQPIPRF

Sequence of entity 6 (A, N1), FASTA

>9V10_6 Cilia- and flagella-associated protein 141 (chains A, N1)
MSAEKMTKLEENLQRAVALKKTVDRWRNFHIHCMWQTTLDQRRNLFAALRMKDTKEQELA
LSNKQLLVVRQAALHELFEKEYQQYQQELNQMGKAFYEERL

Sequence of entity 7 (A0, A1, A2, A3, A4, A5), FASTA

>9V10_7 Tektin-1 (chains A0, A1, A2, A3, A4, A5)
MAKLLQSPPRFLPEEWYIANKSQYHRAEAQRSQSERLVAESQRLVEEIEKTTRKSQSDVN
KKLEQRLEEVRFWKKELDDKLEQLVNQTDDLLTYKTRLERSLESYKEPLHITEKCLEYRE
KRVGIDLVHDVVEQELQKEADIIHGVMNLLIRTLEESTEQIRLNRSAKYNLEKDLRDKFT
AITIDDVCFSLNNNSPNINFSEKVVRIEPNSVSLEDWLDFSNANVEKADKQLNNSTALKT
LVDQILSQTANDLRRQCEVVDEAFINGLKETKDARNKLADHLAKVMEEIASQEKNIMALE
NAITQQEGPAKVAHTRLETRTHRPNVELCRDIAQYRLIKEIQEINHNVARLKETLAQAQT
QLKALYRRQLALQEEIQVKENTIYIDQVLCMEMRKSIPPRDGDDHGAWEGGIRAEAIC

Sequence of entity 8 (AA, AC, AE, AG, AI, AK, AM, AO, BC, BE, BG, BI, BK, BM, BO, CC, CE, CG, CI, CK, CM, CO, DC, DE, DG, DI, DK, DM, DO, EA, EC, EE, EG, EI, EK, EM, FC, FE, FG, FI, FK, FM, GC, GE, GG, GI, GK, GM, GO, HC, HE, HG, HI, HK, HM, HO, IC, IE, IG, II, IK, IM, IO, JC, JE, JG, JI, JK, JM, JO, JQ, KA, KC, KE, KG, KI, KK, KM, KO, LA, LC, LE, LG, LI, LK, LM, LO, MA, MC, ME, MG, MI, MK, MM, MO, NA, NC, NE, NG, NI, NK, NM, NO, OC, OE, OG, OI, OK, OM, OO, PC, PE, PG, PI, PK, PM, PO, QC, QE, QG, QI, QK, QM, QO, RC, RE, RG, RI, RK, RM, RO, SA, SC, SE, SG, SI, SK, SM, TA, TC, TE, TG, TI, TK, TM, UA, UC, UE, UG, UI, UK, UM, VA, VC, VE, VG, VI, VK, VM, VO, WC, WE, WG, WI, WK, WM, WO), FASTA

>9V10_8 Tubulin alpha-3 chain (chains AA, AC, AE, AG, AI, AK, AM, AO, BC, BE, BG, BI, BK, BM, BO, CC, CE, CG, CI, CK, CM, CO, DC, DE, DG, DI, DK, DM, DO, EA, EC, EE, EG, EI, EK, EM, FC, FE, FG, FI, FK, FM, GC, GE, GG, GI, GK, GM, GO, HC, HE, HG, HI, HK, HM, HO, IC, IE, IG, II, IK, IM, IO, JC, JE, JG, JI, JK, JM, JO, JQ, KA, KC, KE, KG, KI, KK, KM, KO, LA, LC, LE, LG, LI, LK, LM, LO, MA, MC, ME, MG, MI, MK, MM, MO, NA, NC, NE, NG, NI, NK, NM, NO, OC, OE, OG, OI, OK, OM, OO, PC, PE, PG, PI, PK, PM, PO, QC, QE, QG, QI, QK, QM, QO, RC, RE, RG, RI, RK, RM, RO, SA, SC, SE, SG, SI, SK, SM, TA, TC, TE, TG, TI, TK, TM, UA, UC, UE, UG, UI, UK, UM, VA, VC, VE, VG, VI, VK, VM, VO, WC, WE, WG, WI, WK, WM, WO)
MRECISIHVGQAGVQIGNACWELYCLEHGIQPDGQMPSDKTIGGGDDSFNTFFSETGAGK
HVPRAVFVDLEPTVVDEVRTGTYRQLFHPEQLITGKEDAANNYARGHYTIGKEIVDLVLD
RIRKLADLCTGLQGFLIFHSFGGGTGSGFASLLMERLSVDYGKKSKLEFAIYPAPQVSTA
VVEPYNSILTTHTTLEHSDCAFMVDNEAIYDICRRNLDIERPTYTNLNRLIGQIVSSITA
SLRFDGALNVDLTEFQTNLVPYPRIHFPLATYAPVISAEKAYHEQLSVAEITNACFEPAN
QMVKCDPRHGKYMACCMLYRGDVVPKDVNAAIATIKTKRTIQFVDWCPTGFKVGINYQPP
TVVPGGDLAKVQRAVCMLSNTTAIAEAWARLDHKFDLMYAKRAFVHWYVGEGMEEGEFSE
AREDLAALEKDYEEVGVDSVEAEAEEGEEY

Sequence of entity 9 (AB, AD, AF, AH, AJ, AL, AN, AP, BB, BD, BF, BH, BJ, BL, BN, BP, CD, CF, CH, CJ, CL, CN, CP, DD, DF, DH, DJ, DL, DN, DP, EB, ED, EF, EH, EJ, EL, EN, FB, FD, FF, FH, FJ, FL, FN, GB, GD, GF, GH, GJ, GL, GN, HB, HD, HF, HH, HJ, HL, HN, IB, ID, IF, IH, IJ, IL, IN, IP, JD, JF, JH, JJ, JL, JN, JP, KB, KD, KF, KH, KJ, KL, KN, KP, LB, LD, LF, LH, LJ, LL, LN, LP, MB, MD, MF, MH, MJ, ML, MN, MP, NB, ND, NF, NH, NJ, NL, NN, NP, OB, OD, OF, OH, OJ, OL, ON, OP, PB, PD, PF, PH, PJ, PL, PN, PP, QD, QF, QH, QJ, QL, QN, QP, RD, RF, RH, RJ, RL, RN, RP, SB, SD, SF, SH, SJ, SL, SN, TB, TD, TF, TH, TJ, TL, TN, UB, UD, UF, UH, UJ, UL, UN, VB, VD, VF, VH, VJ, VL, VN, WB, WD, WF, WH, WJ, WL, WN), FASTA

>9V10_9 Tubulin beta-4B chain (chains AB, AD, AF, AH, AJ, AL, AN, AP, BB, BD, BF, BH, BJ, BL, BN, BP, CD, CF, CH, CJ, CL, CN, CP, DD, DF, DH, DJ, DL, DN, DP, EB, ED, EF, EH, EJ, EL, EN, FB, FD, FF, FH, FJ, FL, FN, GB, GD, GF, GH, GJ, GL, GN, HB, HD, HF, HH, HJ, HL, HN, IB, ID, IF, IH, IJ, IL, IN, IP, JD, JF, JH, JJ, JL, JN, JP, KB, KD, KF, KH, KJ, KL, KN, KP, LB, LD, LF, LH, LJ, LL, LN, LP, MB, MD, MF, MH, MJ, ML, MN, MP, NB, ND, NF, NH, NJ, NL, NN, NP, OB, OD, OF, OH, OJ, OL, ON, OP, PB, PD, PF, PH, PJ, PL, PN, PP, QD, QF, QH, QJ, QL, QN, QP, RD, RF, RH, RJ, RL, RN, RP, SB, SD, SF, SH, SJ, SL, SN, TB, TD, TF, TH, TJ, TL, TN, UB, UD, UF, UH, UJ, UL, UN, VB, VD, VF, VH, VJ, VL, VN, WB, WD, WF, WH, WJ, WL, WN)
MREIVHLQAGQCGNQIGAKFWEVISDEHGIDPTGTYHGDSDLQLERINVYYNEATGGKYV
PRAVLVDLEPGTMDSVRSGPFGQIFRPDNFVFGQSGAGNNWAKGHYTEGAELVDSVLDVV
RKEAESCDCLQGFQLTHSLGGGTGSGMGTLLISKIREEYPDRIMNTFSVVPSPKVSDTVV
EPYNATLSVHQLVENTDETYCIDNEALYDICFRTLKLTTPTYGDLNHLVSATMSGVTTCL
RFPGQLNADLRKLAVNMVPFPRLHFFMPGFAPLTSRGSQQYRALTVPELTQQMFDAKNMM
AACDPRHGRYLTVAAVFRGRMSMKEVDEQMLNVQNKNSSYFVEWIPNNVKTAVCDIPPRG
LKMSATFIGNSTAIQELFKRISEQFTAMFRRKAFLHWYTGEGMDEMEFTEAESNMNDLVS
EYQQYQDATAEEEGEFEEEAEEEVA

Sequence of entity 10 (Aa, Ab, Ac), FASTA

>9V10_10 Sperm axonemal maintenance protein CFAP97D1 (chains Aa, Ab, Ac)
MNNSLDYLAYPVIVSNHRQSTTFRKKLDFGHYILHKNRVQIVKPAVDTKPPMAHTHYILK
LSKIQGEQKRIDKIEYENRQLCQKIANAYRGPAKVDCWNEYLSKSLNRESRNRELVRITM
ENQGILRRLSDRKPNYDRRSSEMDWQNSRRYIRNTTRYLLFQED

Sequence of entity 11 (B, C), FASTA

>9V10_11 Meiosis-specific nuclear structural protein 1 (chains B, C)
MATKKRALSFSEKHQKLVDEKFRKSLNIQVMNKLERQAKNQVVQNENDEKVERQRFLRVL
QNEQFELDMEEAIQKAEANKMLRDRQLEQEERLANELARLKHESLKDKKMRQQVRENSIE
LRELEQKLKAAYMNKERAAQIVEKDAMKYEQMKRDAEIERIMMEEHDRLLKEESAKQERR
NKERAQYYLDLEKQLEDQERRKQEAYEQLLKEKLMIDEIVRKIYEEDQVERQQKLEKKNA
IQKYIEEFQRAQDFWRQKKREEMEEENRKIIEFANIQEQREGERMARVHEIEEKRVQRQN
LLMKQLEETLRQRDDLEQVRQELYQEEQAEIIKLKVKEEAELRLRRQREMKQDFEDQMAL
KELILQAAKEEEETFKKAMLAKFAEDDRIELMNAQKQRMKQLEHKRAVEKLIEERRSQFL
ADKQRELEELQLQQRRQGCINEIIEEERLRLLKEHAAKLLGYLPKGVFKREDDVDMLGEE
FRKAYQKRDGV

Sequence of entity 12 (B0, B1, B2, B3, B4, B5, R0, R1, R2, R3, R4, R5), FASTA

>9V10_12 Tektin-2 (chains B0, B1, B2, B3, B4, B5, R0, R1, R2, R3, R4, R5)
MATLSFKPSERYRLSDWRTNSYLLSTNAERQRDASHQIRQEARILRNETNNQIVWDEHDN
RTRLAERIDTVNRWKETLDKCLTDLDAEIDSLAQAKESAEQNLQAKNLPLDVAIECLTLR
ESRRDIDVVRDPVEEELLKEVEVIEATKKVLQEKISQAFQHLCLLQEIRQQLNSDHRDKM
ETLEIDRGCLSLNLTSPNISLKVNPTRIPKDSTTLQQWDEFTRFNKNRAEAEMKASIELR
EAIALAIAQTNNELDAQRVATEFTFRKRLREMESFYSELKWQEKNTLEEIAELQGDIRRL
EEDLRRKMMNLKLAHTRLESRTYRSNVELCRDQTQYGLIDEVHQLEATINTMKQKLAQTQ
NALDALFKHLARIQADIACKTNTLLLDTKCMDTRRKLTVPAEKFVPQVDTFTRTTNRTLS
PLKICQLELT

Ligands and cofactors

ID	Name	Formula	Copies
GTP	Guanosine-5'-triphosphate	C10 H16 N5 O14 P3	167
MG	Magnesium ion	Mg	170
GDP	Guanosine-5'-diphosphate	C10 H15 N5 O11 P2	170
ATP	Adenosine-5'-triphosphate	C10 H16 N5 O13 P3	3

Primary citation

Doublet microtubule-associated tektins and enzymes differentially regulate sperm flagellar integrity and motility. Liu, Q., Zhou, L., Liang, X. et al. Nat Commun (2026) 17. DOI 10.1038/s41467-026-69714-4 · PubMed

Other PDB entries of the same protein (UniProt Q9CQC3 (AlphaFold model), which also has an AlphaFold model), best resolution first:

8IYJ 3.5 Å, Cryo-EM structure of the 48-nm repeat doublet microtubule from mouse sperm
8I7R 6.5 Å, In situ structure of axonemal doublet microtubules in mouse sperm with 48-nm repeat
8TO0 7.7 Å, 48-nm repeating structure of doublets from mouse sperm flagella

Browse structure collections

About this viewer

MolViewer shows 9V10 directly in your browser with nothing to install. Switch between cartoon, ball-and-stick, spacefill and surface views, color by chain, secondary structure or B-factor, measure distances, angles and dihedrals, and share or embed the view.