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TMEM134 | |||||||||||||||||||||||||||||||||||||||||||||||||||
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Aliases | TMEM134 , 2410001H17Rik, AI463452, transmembrane protein 134 | ||||||||||||||||||||||||||||||||||||||||||||||||||
External IDs | MGI: 1914240 HomoloGene: 11837 GeneCards: TMEM134 | ||||||||||||||||||||||||||||||||||||||||||||||||||
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Transmembrane protein 134 is a protein encoded by the TMEM134 gene. TMEM134 does not have any other known aliases. There are two transmembrane domains and a domain of unknown function (DUF872). [5] Evolutionary, the majority of the organisms that have this gene are primates and mammals, although there are some organisms dating back to Drosophila and C. elegans. Through current research, there has not been any confirmed function of TMEM134.
The gene is composed of 6 exons spanning from 67464348 to 67469277 kilo bases. It is located on chromosome 11q13.2, which is the minus strand of the chromosome. The gene does have three isoforms; a, b, and c.
The protein is encoded by TMEM134 gene and is 195 amino acids in length. The protein contains two transmembrane domains but does not contain a signal peptide. This suggests that there is an internal signal peptide upstream of the translated portion of the protein. The protein is overall considering normal with its amino acid content but does have two regions of high hydrophobicity, which occur during the transmembrane regions of the protein. This gives the protein an isoelectric point of 6.08. The overall weight of the protein is 21.6 kilodaltons, which is conserved throughout the different orthologs. The protein also contains a domain of unknown function 872 (DUF872). Currently there is no thought to the possible function of this domain.
TMEM134 is regulated by the promoter GXP50275. [6] There are 870 amino acids in the promoter and 15 transcripts variants of it. The promoter is well conserved in mammals. There are some conserved binding regions in the promoter including EGR/nerve factor and Huntington's disease gene regulatory region.
The final protein is thought to be in the endoplasmic reticulum and the nuclear membrane. [7] The protein is anchored in two different regions, from 123-145 and 155-177. The portion of the protein that extends into the cytosol is heavily phosphorylated. These phosphorylation sites are conserved into bony fishes.
The only post-translational modification that occurs is phosphorylation. There is no glycosylation, sulfination[ check spelling ], or sumoylation sites.
TMEM134 has one interaction with another protein, ELAVL1. This protein binds to AU rich elements in FOS and IL3/interleukin-3 mRNAs. [8]
Microarray analysis of GEO profiles were conducted and TMEM134 is shown to be ubiquitously expressed in the majority of human tissues. [9] Even though there is ubiquitous expression in the human tissues, there are other tissues that have higher expression levels, such as the heart, breast tissue, and prostate tissue.
As discussed earlier, there is quite a bit of conservation in primates and mammals but there are some distant orthologs of zebrafish and Drosophila, and a homolog of C. elegans.
Genus and Species | Common Name | Length | Accession | Percent Identity [10] |
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Homo sapiens | Human | 195 aa | NP_079400 | 100% |
Papio anubis | Olive baboon | 195 aa | XP_003905916.1 | 97% |
Sus scrofa | Wild boar | 246 aa | XP_003480710 | 95% |
Orincus ocra | Orca | 195 aa | XP_004278064 | 94% |
Equua callabus | Horse | 208 aa | XP_005598525 | 92% |
Ceratotherium simum simum | White rhinocerus | 186 aa | XP_004437766 | 89% |
Bos taurus | Cow | 229 aa | XP_005227097 | 78% |
Drosophilia melanogstar | Fruit fly | 170 aa | NP_001261296 | 32% |
Caenorhabditis elegans | Worm | 168 aa | NP_001021401 | 26% |
Transmembrane protein 53, or TMEM53, is a protein that is encoded on chromosome 1 in humans. It has no paralogs but is predicted to have many orthologs across eukaryotes.
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TMEM69, also known as Transmembrane protein 69, is a protein that in humans is encoded by the TMEM69 gene. A notable feature of the protein encoded by TMEM69 is the presence of five transmembrane segments.
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Transmembrane protein 268 is a protein that in humans is encoded by TMEM268 gene. The protein is a transmembrane protein of 342 amino acids long with eight alternative splice variants. The protein has been identified in organisms from the common fruit fly to primates. To date, there has been no protein expression found in organisms simpler than insects.
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Chromosome 9 open reading frame 50 is a protein that in humans is encoded by the C9orf50 gene. C9orf50 has one other known alias, FLJ35803. In humans the gene coding sequence is 10,051 base pairs long, transcribing an mRNA of 1,624 bases that encodes a 431 amino acid protein.
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Transmembrane protein 247 is a multi-pass transmembrane protein of unknown function found in Homo sapiens encoded by the TMEM247 gene. Notable in the protein are two transmembrane regions near the c-terminus of the translated polypeptide. Transmembrane protein 247 has been found to be expressed almost entirely in the testes.
TMEM275 is a protein that in humans is encoded by the TMEM275 gene. TMEM275 has two, highly-conserved, helical trans-membrane regions. It is predicted to reside within the plasma membrane or the endoplasmic reticulum's membrane.
Chromosome 3 open reading frame 38 (C3orf38) is a protein which in humans is encoded by the C3orf38 gene.
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