In situ structure of the central apparatus in mouse sperm axoneme.
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| LP [auth 4a] | SCOP2B Superfamily | Metallo-dependent phosphatases | 8080443 | 3001067 | SCOP2B (2022-06-29) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| AA [auth E], Y [auth C], Z [auth D] | PF24798 | CFAP74 forth Ig-like domain (Ig-CFAP74_4th) | CFAP74 forth Ig-like domain | This entry represents the forth Ig-like domain of CFAP74, a protein that is part of the central apparatus of the cilium axoneme and may play a role in cilium movement. It may play an important role in sperm architecture and function [1]. | Domain |
| AA [auth E], Y [auth C], Z [auth D] | PF24770 | CFAP74 second Ig-like domain (Ig-CFAP74_2) | CFAP74 second Ig-like domain | This entry represents the second Ig-like domain of CFAP74, a protein that is part of the central apparatus of the cilium axoneme and may play a role in cilium movement. It may play an important role in sperm architecture and function [1]. | Domain |
| AA [auth E], Y [auth C], Z [auth D] | PF24771 | CFAP74 first Ig-like domain (Ig_CFAP74_1st) | CFAP74 first Ig-like domain | This entry represents the first Ig-like domain of CFAP74, a protein that is part of the central apparatus of the cilium axoneme and may play a role in cilium movement. It may play an important role in sperm architecture and function [1]. | Domain |
| AA [auth E], Y [auth C], Z [auth D] | PF23735 | Kinesin-like protein KIF9 domain (KIF9) | Kinesin-like protein KIF9 domain | This domain is found in mouse Kinesin-like protein KIF9 and similar animal proteins. KIF9 is essential for normal male fertility and for progressive motility of spermatozoa. This domain, which is predicted to form two long alpha-helices, is often fou ... | Domain |
| AA [auth E], Y [auth C], Z [auth D] | PF24778 | CFAP74 third Ig-like domain (Ig-CFAP74_3rd) | CFAP74 third Ig-like domain | This entry represents the third Ig-like domain of CFAP74, a protein that is part of the central apparatus of the cilium axoneme and may play a role in cilium movement. It may play an important role in sperm architecture and function [1]. | Domain |
| AA [auth E], Y [auth C], Z [auth D] | PF00225 | Kinesin motor domain (Kinesin) | Kinesin motor domain | Domain | |
| W [auth A], X [auth B] | PF06294 | CH-like domain in sperm protein (CH_2) | CH-like domain in sperm protein | Spef is a region of sperm flagellar proteins. It probably exerts a role in spermatogenesis in that the protein is expressed predominantly in adult tissue. It is present in the tails of developing and epididymal sperm internal to the fibrous sheath an ... | Domain |
| UQ [auth 5B] | PF12796 | Ankyrin repeats (3 copies) (Ank_2) | Ankyrin repeats (3 copies) | - | Repeat |
| UQ [auth 5B] | PF13637 | Ankyrin repeats (many copies) (Ank_4) | Ankyrin repeats (many copies) | - | Repeat |
| UQ [auth 5B] | PF02493 | MORN repeat (MORN) | MORN repeat | - | Repeat |
| UQ [auth 5B] | PF01753 | MYND finger (zf-MYND) | MYND finger | Domain | |
| RQ [auth J], SQ [auth K], TQ [auth 5A] | PF22544 | HYDIN/CFA65/VesB-like, Ig-like domain (HYDIN_VesB_CFA65-like_Ig) | HYDIN/CFA65/VesB-like, Ig-like domain | VesB is a serine protease that is secreted by the type II secretion system (T2S) in Vibrio cholerae (Swiss:Q9KSQ6). It efficiently cleaves a trypsin substrate, but not chymotrypsin and elastase substrates [1]. It has been suggested to contribute to i ... | Domain |
| RQ [auth J], SQ [auth K], TQ [auth 5A] | PF24507 | CFAP65, fourth Ig-like domain (Ig_CFAP65_4th) | CFAP65, fourth Ig-like domain | This entry represents the fourth Ig-like domain of CFAP65 and related sequences. CFA65 plays a role in flagellar formation and sperm motility [1]. | Domain |
| KP [auth 4Z] | PF00615 | Regulator of G protein signaling domain (RGS) | Regulator of G protein signaling domain | RGS family members are GTPase-activating proteins for heterotrimeric G-protein alpha-subunits. | Domain |
| KP [auth 4Z] | PF00069 | Protein kinase domain (Pkinase) | Protein kinase domain | Domain | |
| KP [auth 4Z] | PF00169 | PH domain (PH) | PH domain | PH stands for pleckstrin homology. | Domain |
| IP [auth 4X], JP [auth 4Y] | PF13855 | Leucine rich repeat (LRR_8) | Leucine rich repeat | - | Repeat |
| IP [auth 4X], JP [auth 4Y] | PF23598 | Leucine-rich repeat region (LRR_14) | Leucine-rich repeat region | - | Repeat |
| IP [auth 4X], JP [auth 4Y] | PF24978 | Lrrd1 death domain (Death_Lrrd1) | Lrrd1 death domain | This entry represents the C-terminal death domain found in Lrrd1 protein. | Domain |
| PF00155 | Aminotransferase class I and II (Aminotran_1_2) | Aminotransferase class I and II | Domain | ||
| BP [auth 4O], XO [auth 4P], ZO [auth 4Q] | PF00625 | Guanylate kinase (Guanylate_kin) | Guanylate kinase | Domain | |
| BP [auth 4O], XO [auth 4P], ZO [auth 4Q] | PF14580 | Leucine-rich repeat (LRR_9) | Leucine-rich repeat | - | Repeat |
| AP [auth 4L], WO [auth 4M], YO [auth 4N] | PF06294 | CH-like domain in sperm protein (CH_2) | CH-like domain in sperm protein | Spef is a region of sperm flagellar proteins. It probably exerts a role in spermatogenesis in that the protein is expressed predominantly in adult tissue. It is present in the tails of developing and epididymal sperm internal to the fibrous sheath an ... | Domain |
| AP [auth 4L], WO [auth 4M], YO [auth 4N] | PF22946 | CPC1/SPEF2 domain D5 (SPEF2_D5) | CPC1/SPEF2 domain D5 | This domain is found in the axoneme central apparatus (CA) associated proteins such as Chlamydomonas Central pair complex 1 (CPC1) and its mammalian orthologues Sperm flagellar protein 2 (SPEF2) [1,2]. CPC1 is located at C1 microtubule. Most of the d ... | Domain |
| AP [auth 4L], WO [auth 4M], YO [auth 4N] | PF24082 | SPEF2 C-terminal domain (SPEF2_C) | SPEF2 C-terminal domain | This domain is found in the axoneme central apparatus (CA) associated proteins such as Chlamydomonas Central pair complex 1 (CPC1) and its mammalian orthologues Sperm flagellar protein 2 (SPEF2) [1,2]. CPC1 is located at C1 microtubule. Most of the d ... | Domain |
| SO [auth 4C], TO [auth 4D], UO [auth 4E], VO [auth 4F] | PF07707 | BTB And C-terminal Kelch (BACK) | BTB And C-terminal Kelch | This domain is found associated with Pfam:PF00651 and Pfam:PF01344 [1]. The BACK domain is found juxtaposed to the BTB domain; they are separated by as little as two residues [1]. This family appears to be closely related to the BTB domain (Finn RD, ... | Domain |
| SO [auth 4C], TO [auth 4D], UO [auth 4E], VO [auth 4F] | PF00651 | BTB/POZ domain (BTB) | BTB/POZ domain | The BTB (for BR-C, ttk and bab) [1] or POZ (for Pox virus and Zinc finger) [2] domain is present near the N-terminus of a fraction of zinc finger (Pfam:PF00096) proteins and in proteins that contain the Pfam:PF01344 motif such as Kelch and a family o ... | Domain |
| SO [auth 4C], TO [auth 4D], UO [auth 4E], VO [auth 4F] | PF25281 | MAP1B MBL-like domain (MBL_MAP1B) | MAP1B MBL-like domain | This domain is found in the Microtubule-associated proteins MAP1B, MAP1A, MAP1S and related eukaryotic proteins. MAP1B is required for proper microtubule dynamics and plays a role in the cytoskeletal changes that accompany neuronal differentiation an ... | Domain |
| SO [auth 4C], TO [auth 4D], UO [auth 4E], VO [auth 4F] | PF23415 | Microtubule-associated protein 1B N-terminal (MAPB1_N) | Microtubule-associated protein 1B N-terminal | This entry represents the N-terminal domain of Microtubule-associated protein 1B (MAP1B) which, when phosphorylated is required for proper microtubule dynamics and plays a role in the cytoskeletal changes that accompany neuronal differentiation and n ... | Domain |
| NO [auth 4G], OO [auth 4H], PO [auth 4I], QO [auth 4J], RO [auth 4K] | PF22544 | HYDIN/CFA65/VesB-like, Ig-like domain (HYDIN_VesB_CFA65-like_Ig) | HYDIN/CFA65/VesB-like, Ig-like domain | VesB is a serine protease that is secreted by the type II secretion system (T2S) in Vibrio cholerae (Swiss:Q9KSQ6). It efficiently cleaves a trypsin substrate, but not chymotrypsin and elastase substrates [1]. It has been suggested to contribute to i ... | Domain |
| NO [auth 4G], OO [auth 4H], PO [auth 4I], QO [auth 4J], RO [auth 4K] | PF17213 | Hydin Adenylate kinase-like domain (Hydin_ADK) | Hydin Adenylate kinase-like domain | This domain found in the Hydin protein is homologous to adenylate kinases [1]. | Domain |
| NO [auth 4G], OO [auth 4H], PO [auth 4I], QO [auth 4J], RO [auth 4K] | PF24816 | Cilia- and flagella-associated protein 65-like, Ig-like domain (Ig_CFAP65__9th) | Cilia- and flagella-associated protein 65-like, Ig-like domain | This domain is found in human Cilia- and flagella-associated protein 65 (CFAP65) and similar animal sequences. CFAP65 plays a role in flagellar formation and sperm motility [1]. This protein is predicted to have several tandem Ig-like domains, includ ... | Domain |
| NO [auth 4G], OO [auth 4H], PO [auth 4I], QO [auth 4J], RO [auth 4K] | PF14874 | Flagellar-associated PapD-like (PapD-like) | Flagellar-associated PapD-like | This domain is a putative PapD periplasmic pilus chaperone protein family. | Domain |
| LO [auth 4A], MO [auth 4B] | PF00149 | Calcineurin-like phosphoesterase (Metallophos) | Calcineurin-like phosphoesterase | This family includes a diverse range of phosphoesterases [1], including protein phosphoserine phosphatases, nucleotidases, sphingomyelin phosphodiesterases and 2'-3' cAMP phosphodiesterases as well as nucleases such as bacterial SbcD Swiss:P13457 or ... | Domain |
| LO [auth 4A], MO [auth 4B] | PF22544 | HYDIN/CFA65/VesB-like, Ig-like domain (HYDIN_VesB_CFA65-like_Ig) | HYDIN/CFA65/VesB-like, Ig-like domain | VesB is a serine protease that is secreted by the type II secretion system (T2S) in Vibrio cholerae (Swiss:Q9KSQ6). It efficiently cleaves a trypsin substrate, but not chymotrypsin and elastase substrates [1]. It has been suggested to contribute to i ... | Domain |
| LO [auth 4A], MO [auth 4B] | PF26579 | CFAP47-like, immunoglobulin-like domain (Ig_CFAP47) | CFAP47-like, immunoglobulin-like domain | This immunoglobulin-like (Ig-like) domain is found towards the C-terminal end of human Cilia- and flagella-associated protein 47 (CFAP47), which plays a role in flagellar formation and sperm motility [1]. | Domain |
| LO [auth 4A], MO [auth 4B] | PF24529 | Cilia- and flagella-associated protein 47 domain (CFAP47) | Cilia- and flagella-associated protein 47 domain | This domain is found in human Cilia- and flagella-associated protein 47 (CFAP47) and similar proteins mainly from animals. CFAP47 plays a role in flagellar formation and sperm motility [1]. This domain is usually found associated with Pfam:PF22544. | Domain |
| LO [auth 4A], MO [auth 4B] | PF25281 | MAP1B MBL-like domain (MBL_MAP1B) | MAP1B MBL-like domain | This domain is found in the Microtubule-associated proteins MAP1B, MAP1A, MAP1S and related eukaryotic proteins. MAP1B is required for proper microtubule dynamics and plays a role in the cytoskeletal changes that accompany neuronal differentiation an ... | Domain |
| LO [auth 4A], MO [auth 4B] | PF23415 | Microtubule-associated protein 1B N-terminal (MAPB1_N) | Microtubule-associated protein 1B N-terminal | This entry represents the N-terminal domain of Microtubule-associated protein 1B (MAP1B) which, when phosphorylated is required for proper microtubule dynamics and plays a role in the cytoskeletal changes that accompany neuronal differentiation and n ... | Domain |
| CO [auth 3S], SN [auth 3Q], ZN [auth 3R] | PF02493 | MORN repeat (MORN) | MORN repeat | - | Repeat |
| PF14769 | Flagellar C1a complex subunit C1a-32 (CLAMP) | Flagellar C1a complex subunit C1a-32 | - | Family | |
| MN [auth 3B], TN [auth 3C] | PF00612 | IQ calmodulin-binding motif (IQ) | IQ calmodulin-binding motif | - | Motif |
| PF05186 | Dpy-30 motif (Dpy-30) | Dpy-30 motif | - | Motif | |
| PF15120 | Sperm acrosome-associated protein 9 (SPACA9) | Sperm acrosome-associated protein 9 | - | Family | |
| AM [auth A3], BM [auth A4], ZL [auth A2] | PF21049 | Cilia- and flagella-associated protein 69, ARM repeat (CFA69_ARM_rpt) | Cilia- and flagella-associated protein 69, ARM repeat | - | Repeat |
| PF13499 | EF-hand domain pair (EF-hand_7) | EF-hand domain pair | Domain | ||
| PF00514 | Armadillo/beta-catenin-like repeat (Arm) | Armadillo/beta-catenin-like repeat | - | Repeat | |
| PF00091 | Tubulin/FtsZ family, GTPase domain (Tubulin) | Tubulin/FtsZ family, GTPase domain | This family includes the tubulin alpha, beta and gamma chains, as well as the bacterial FtsZ family of proteins. Members of this family are involved in polymer formation. FtsZ is the polymer-forming protein of bacterial cell division. It is part of a ... | Domain | |
| PF03953 | Tubulin C-terminal domain (Tubulin_C) | Tubulin C-terminal domain | This family includes the tubulin alpha, beta and gamma chains. Members of this family are involved in polymer formation. Tubulins are GTPases. FtsZ can polymerise into tubes, sheets, and rings in vitro and is ubiquitous in eubacteria and archaea. Tub ... | Domain | |
| PF00400 | WD domain, G-beta repeat (WD40) | WD domain, G-beta repeat | - | Repeat | |
| PF05018 | CFA20 domain (CFA20_dom) | CFA20 domain | This domain is characteristic of cilia- and flagella-associated protein 20 (CFA20). CFA20 is a cilium- and flagellum-specific protein that plays a role in axonemal structure organisation and motility [1,2]. In Chlamydomonas reinhardtii, it stabilises ... | Domain | |
| PF14646 | MYCBP-associated protein family (MYCBPAP) | MYCBP-associated protein family | - | Family | |
| HA [auth O], IA [auth P] | PF13181 | Tetratricopeptide repeat (TPR_8) | Tetratricopeptide repeat | - | Repeat |
| HA [auth O], IA [auth P] | PF23277 | Deleted in lung and esophageal cancer protein 1 Ig domain (Ig_Dlec1_1) | Deleted in lung and esophageal cancer protein 1 Ig domain | This domain is found in the human Deleted in lung and esophageal cancer protein 1 (Dlec1) and realted proteins. Dlec1 is essential for spermatogenesis and male fertility [1]. This protein may play an important role in sperm head and tail formation [1 ... | Domain |
| HA [auth O], IA [auth P] | PF23316 | DLEC1 sixth Ig-like domain (Ig_DLEC1_6th) | DLEC1 sixth Ig-like domain | This domain is found in Deleted in lung and esophageal cancer protein 1 DLEC1 and related proteins. This protein is essential for spermatogenesis and male fertility and may play a role in the sperm head and tail formation [1]. The domain represented ... | Domain |
| GA [auth M] | PF14580 | Leucine-rich repeat (LRR_9) | Leucine-rich repeat | - | Repeat |
| FA [auth L] | PF22544 | HYDIN/CFA65/VesB-like, Ig-like domain (HYDIN_VesB_CFA65-like_Ig) | HYDIN/CFA65/VesB-like, Ig-like domain | VesB is a serine protease that is secreted by the type II secretion system (T2S) in Vibrio cholerae (Swiss:Q9KSQ6). It efficiently cleaves a trypsin substrate, but not chymotrypsin and elastase substrates [1]. It has been suggested to contribute to i ... | Domain |
| DA [auth H], EA [auth I] | PF25249 | CFAP65, seventh Ig-like domain (Ig_CFAP65_7th) | CFAP65, seventh Ig-like domain | This entry represents the seventh Ig-like domain of CFAP65 and related sequences. CFAP65 plays a role in flagellar formation and sperm motility [1]. | Domain |
| DA [auth H], EA [auth I] | PF25248 | CFAP65, eight Ig-like domain (Ig_CFAP65_8th) | CFAP65, eight Ig-like domain | This entry represents the eight Ig-like domain of CFAP65 and related sequences. CFAP65 plays a role in flagellar formation and sperm motility [1]. | Domain |
| DA [auth H], EA [auth I] | PF14858 | Cilia- and flagella-associated protein 54 (CFAP54_N) | Cilia- and flagella-associated protein 54 | - | Family |
| DA [auth H], EA [auth I] | PF22544 | HYDIN/CFA65/VesB-like, Ig-like domain (HYDIN_VesB_CFA65-like_Ig) | HYDIN/CFA65/VesB-like, Ig-like domain | VesB is a serine protease that is secreted by the type II secretion system (T2S) in Vibrio cholerae (Swiss:Q9KSQ6). It efficiently cleaves a trypsin substrate, but not chymotrypsin and elastase substrates [1]. It has been suggested to contribute to i ... | Domain |
| DA [auth H], EA [auth I] | PF24507 | CFAP65, fourth Ig-like domain (Ig_CFAP65_4th) | CFAP65, fourth Ig-like domain | This entry represents the fourth Ig-like domain of CFAP65 and related sequences. CFA65 plays a role in flagellar formation and sperm motility [1]. | Domain |
| DA [auth H], EA [auth I] | PF24816 | Cilia- and flagella-associated protein 65-like, Ig-like domain (Ig_CFAP65__9th) | Cilia- and flagella-associated protein 65-like, Ig-like domain | This domain is found in human Cilia- and flagella-associated protein 65 (CFAP65) and similar animal sequences. CFAP65 plays a role in flagellar formation and sperm motility [1]. This protein is predicted to have several tandem Ig-like domains, includ ... | Domain |
| DA [auth H], EA [auth I] | PF24291 | Cilia- and flagella-associated protein 65-like, Ig-like domain (Ig_CFAP65) | Cilia- and flagella-associated protein 65-like, Ig-like domain | This domain is found in human Cilia- and flagella-associated protein 65 (CFAP65) and similar animal sequences. CFAP65 plays a role in flagellar formation and sperm motility. This protein is predicted to have several Ig-like domains, one of which is r ... | Domain |
| BA [auth F], CA [auth G] | PF14643 | Domain of unknown function (DUF4455) (DUF4455) | Domain of unknown function (DUF4455) | - | Family |
| BA [auth F], CA [auth G] | PF23735 | Kinesin-like protein KIF9 domain (KIF9) | Kinesin-like protein KIF9 domain | This domain is found in mouse Kinesin-like protein KIF9 and similar animal proteins. KIF9 is essential for normal male fertility and for progressive motility of spermatozoa. This domain, which is predicted to form two long alpha-helices, is often fou ... | Domain |
| BA [auth F], CA [auth G] | PF14644 | Domain of unknown function (DUF4456) (DUF4456) | Domain of unknown function (DUF4456) | - | Family |
| BA [auth F], CA [auth G] | PF00225 | Kinesin motor domain (Kinesin) | Kinesin motor domain | Domain | |
| PF06294 | CH-like domain in sperm protein (CH_2) | CH-like domain in sperm protein | Spef is a region of sperm flagellar proteins. It probably exerts a role in spermatogenesis in that the protein is expressed predominantly in adult tissue. It is present in the tails of developing and epididymal sperm internal to the fibrous sheath an ... | Domain | |
| PF14646 | MYCBP-associated protein family (MYCBPAP) | MYCBP-associated protein family | - | Family |














