ODF2

Outer dense fiber protein 2, also known as cenexin, is a protein that in humans is encoded by the ODF2 gene.^[5][6][7]

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ODF2
Identifiers
Aliases	ODF2, CT134, ODF2/1, ODF2/2, ODF84, outer dense fiber of sperm tails 2
External IDs	OMIM: 602015; MGI: 1098824; HomoloGene: 1907; GeneCards: ODF2; OMA:ODF2 - orthologs
Gene location (Human) Chr. Chromosome 9 (human)[1] Band 9q34.11 Start 128,455,186 bp[1] End 128,501,292 bp[1]
Gene location (Mouse) Chr. Chromosome 2 (mouse)[2] Band 2 B|2 20.79 cM Start 29,779,233 bp[2] End 29,821,758 bp[2]
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in sperm left testis right testis right hemisphere of cerebellum right uterine tube anterior pituitary stromal cell of endometrium ventricular zone sural nerve tendon of biceps brachii Top expressed in seminiferous tubule spermatid spermatocyte tail of embryo zygote secondary oocyte primitive streak cerebellar cortex renal corpuscle neural layer of retina More reference expression data BioGPS More reference expression data
Gene ontology Molecular function structural molecule activity protein binding Cellular component cytoplasm ciliary basal body cytosol cell projection spindle pole outer dense fiber ciliary transition fiber microtubule organizing center centriole microtubule cytoskeleton nucleus centrosome cilium motile cilium sperm flagellum centriolar subdistal appendage Biological process cell differentiation multicellular organism development G2/M transition of mitotic cell cycle spermatogenesis spermatid development regulation of cilium assembly ciliary basal body-plasma membrane docking regulation of G2/M transition of mitotic cell cycle protein localization centriole-centriole cohesion cilium organization Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 4957 18286 Ensembl ENSG00000136811 ENSMUSG00000026790 UniProt Q5BJF6 A3KGV1 RefSeq (mRNA) NM_001242352 NM_001242353 NM_001242354 NM_002540 NM_153432 NM_153433 NM_153435 NM_153436 NM_153437 NM_153439 NM_153440 NM_001351577 NM_001351578 NM_001351579 NM_001351580 NM_001351581 NM_001351582 NM_001351583 NM_001351584 NM_001351585 NM_001351586 NM_001351587 NM_001351588 NM_001113213 NM_001113214 NM_001177659 NM_001177661 NM_013615 NM_001355136 NM_001355137 NM_001355138 NM_001369060 NM_001374179 NM_001374180 NM_001374181 NM_001374182 RefSeq (protein) NP_001229281 NP_001229282 NP_001229283 NP_002531 NP_702910 NP_702911 NP_702913 NP_702914 NP_702915 NP_702917 NP_702918 NP_001338506 NP_001338507 NP_001338508 NP_001338509 NP_001338510 NP_001338511 NP_001338512 NP_001338513 NP_001338514 NP_001338515 NP_001338516 NP_001338517 NP_001106684 NP_001106685 NP_001171130 NP_001171132 NP_038643 NP_001342065 NP_001342066 NP_001342067 NP_001355989 NP_001361108 NP_001361109 NP_001361110 NP_001361111 Location (UCSC) Chr 9: 128.46 – 128.5 Mb Chr 2: 29.78 – 29.82 Mb PubMed search [3] [4]
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The outer dense fibers are cytoskeletal structures that surround the axoneme in the middle piece and principal piece of the sperm tail. The fibers function in maintaining the elastic structure and recoil of the sperm tail as well as in protecting the tail from shear forces during epididymal transport and ejaculation. Defects in the outer dense fibers lead to abnormal sperm morphology and infertility. This gene encodes one of the major outer dense fiber proteins. Multiple protein isoforms are encoded by transcript variants of this gene; however, not all isoforms and variants have been fully described.^[7]