Tubulin epsilon and delta complex protein 1 is a protein which in humans is encoded by the gene TEDC1 (previously C14orf80). It is thought to function by enhancing hedgehog signaling in the cilia, and may also play a role in stabilizing actin filaments against perturbations.

Gene

Location C14orf80 is located on chromosome 14 (14q32.33) starting at 105,489,855bp and ending at 105,499,248bp. C14orf80 is 9,393 base pairs long and contains 11 exons that can be alternatively spliced to form different mRNA variants.

Variants Transcription of C14orf80 can produce 19 mRNA splice variants. Only six of these nineteen variants are predicted to not encode for a protein. Of the mRNA variants that have been found experimentally, the longest is 1,719 base pairs and produces a protein with 426 amino acids.

Expression C14orf80 has been determined to be expressed in 77 types of tissues and 100 developmental stages. It has also been determined to have a higher level of expression in a few cases of pancreatic and prostate cancer cells compared to normal tissue.

Homology

Paralogs There are no paralogs of C14orf80.

Orthologs Using the BLAST program from NCBI, the orthologs of C14orf80 were found to range from primates to invertebrates. Below is a table that contains a variety of these orthologs.

Species Common name Accession number Date of divergence Sequence length (AA) Sequence similarity Homo sapiens Human NP_001128347 0 mya 426 100% Chlorocebus sabaeus Green monkey XP_007986247 29 mya 424 94% Ictidomys tridecemlineatus 13-lined ground squirrel XP_005334680 92.3 mya 426 80% Bos taurus Cow XP_003585026 94.2 mya 419 78% Rattus norvegicus Brown rat XP_002726827 92.3 mya 420 76% Zonotrichia albicollis White-throated sparrow XP_005493655 296 mya 454 53% Pelodiscus sinensis Chinese softshell turtle XP_006137260 296 mya 404 51% Xenopus tropicalis Tropical clawed frog XP_002935771 371.2 mya 437 50% Danio rerio Zebra fish XP_706561 400.1 mya 452 41% Camponotus floridanus Florida carpenter ant XP_011255960 782.7 mya 374 38%

Evolution rate When compared to the slow-evolving cytochrome C gene and the fast-evolving fibrinogen gene, gene C14orf80 is also fast-evolving.

Protein

General properties Uncharacterized protein C14orf80 is 426 amino acids long with a molecular weight of 47 kDa. Its isoelectric point is 8.9.

Composition

Secondary structure Uncharacterized protein C14orf80 is predicted to be entirely composed of alpha helices. Using the program SOUSI-signal, it was predicted that uncharacterized protein C14orf80 does not contain a signal peptide and is a soluble protein.

Function

Domains Uncharacterized protein C14orf80 has two functional domains. The first domain is the domain of unknown function 4509 and the second is the domain of unknown function 4510. As their naming states the functions of these domains are still unknown.

DUF4509 is located at amino acid 45 to amino acid 228. In this domain of unknown function there is a conserved WLL sequence motif.

DUF4510 is located at amino acid 263 to amino acid 425. In this domain of unknown function there are two conserved sequence motifs: LEA and WMD.

Post-translational modification Uncharacterized protein C14orf80 is predicted to have glycation and phosphorylation sites for post-translational modification. Of these sites three are for glycation, eight are for serine phosphorylation and one site is for threonine phosphorylation.

Subcellular location Uncharacterized protein C14orf80 is not predicted to be a transmembrane protein. It is mainly localized to the golgi apparatus but has been found in the nucleus and cytoplasm also.

Interactions Currently, there are 21 proteins that are predicted to interact with uncharacterized protein C14orf80. These 21 proteins were found using the databases Mentha, BioGRID, STRING, GeneCards and IntAct. Below is a table of a variety of these 21 proteins.

Interacting protein Full protein name Function Citation DDIT3 DNA-damage inducible transcript 3 Induces cell cycle arrest and apoptosis when ER stress CEBPZ CCAAT enhancer binding protein Stimulates transcription from HSP70 promoter UBC Ubiquitin C FKBP5 FK506 binding protein Immunophilin protein with PPIase DEF107A Beta-defensin 107 Anti-bacterial activity XAGE1D Cancer/testis antigen family 12 member 1D TRAK2 Trafficking protein kinesin binding 2 May regulate endosome to lysosome trafficking of membrane cargo NRF1 Nuclear respiratory factor 1 Transcription factor on nuclear genes encoding respiratory subunits and components of the mitochondrial transcription and replication machinery

Clinical significance Uncharacterized protein C14orf80 has been associated with tumors in the breast, CNS, endometrium, large intestine, lung, skin, and stomach.

References