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TBC1D30

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TBC1D30
Identifiers
AliasesTBC1D30, TBC1 domain family member 30
External IDsOMIM: 615077; MGI: 1921944; HomoloGene: 18930; GeneCards: TBC1D30; OMA:TBC1D30 - orthologs
Orthologs
SpeciesHumanMouse
Entrez

23329

74694

Ensembl

ENSG00000111490

ENSMUSG00000052302

UniProt

Q9Y2I9

Q69ZT9

RefSeq (mRNA)

NM_015279
NM_001330186
NM_001330187
NM_001330188
NM_001364838

NM_029057
NM_001361015

RefSeq (protein)

NP_001317115
NP_001317116
NP_001317117
NP_056094
NP_001351767

NP_083333
NP_001347944

Location (UCSC)Chr 12: 64.76 – 64.88 MbChr 10: 121.1 – 121.19 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse
A prediction of the 3D structure of the TBC1D30 protein containing 275 of the 944 amino acids, including the RabGAP-TBC domain, modelled with 100% confidence.[5] The colors show the direction of the protein, with red being the first amino acids, and blue/purple being the last amino acids.
A proposed 3D structure for the TBC1D30 protein.[6] The colors show the direction of the protein according to the colors of the rainbow, with red being the start and blue/purple being the end of the protein, or amino acid sequence.

TBC1D30 is a gene in the human genome that encodes the protein of the same name. This protein has two domains, one of which is involved in the processing of the Rab protein. Much of the function of this gene is not yet known, but it is expressed mostly in the brain and adrenal cortex.

Gene

TBC1D30, also known as KIAA0984, is a protein in the 12th chromosome of the human genome at 12q14.3.[7] The gene for the protein includes two domains: the RabGAP-TBC domain, and the DUF4682 domain.[8] This gene spans 100,076 base pairs in the human genome,[7] but gets condensed down into 7,931 bp for the mRNA transcript,[9] and finally 944 amino acids in its isoform X1[8] with 12 exons.[10]

Transcripts

There are 9 isoforms of TBC1D30, 3 of which are independent of the genome build.[11]

Table 1. Isoforms for TBC1D30[11]
Transcript Name RNA Accession Number Protein Accession Number Size[12] Domains
TBC1 domain family member 30 isoform 1 NM_015279.2 NP_001317117.1 761 aa 2
TBC1 domain family member 30 isoform 2 NM_001330186.2 NP_001317115.1 737 aa 0
TBC1 domain family member 30 isoform 3 NM_001330187.2 NP_001317116.1 647 aa 2
TBC1 domain family member 30 isoform X1 XM_024448901.1 XP_024304669.1 944 aa 2
TBC1 domain family member 30 isoform X2 XM_024448902.1 XP_024304670.1 924 aa 2
TBC1 domain family member 30 isoform X3 XM_024448903.1 XP_024304671.1 900 aa 2
TBC1 domain family member 30 isoform X4 XM_011538078.2 XP_011536380.1 781 aa 2
TBC1 domain family member 30 isoform X5 XM_024448904.1 XP_024304672.1 667 aa 2
TBC1 domain family member 30 isoform X6 XM_017019087.2 XP_016874576.1 647 aa 2

The first three in the list are independent of the reference genome. The latter 6, labelled with an X, are based on NC_000012.12 Reference GRCh38.p13 Primary Assembly.[11] The domains for each isoform that contains domains are the same RabGAB-TBC and DUF4682 domains.[11] The size column shows the number of amino acids in each protein isoform.

Protein

TBC1D30 has an isoelectric point of about 8.5.[13] Antibodies revealed TBC1D30 to have a molecular weight of about 90 kDa.[14]

Gene level regulation

RNA-seq was completed on 95 individuals from 27 different tissues.[5]

The most likely promoter for TBC1D30 is about 1,279 base pairs, with a start at 64,779,516 and an end at 64,780,794.[15]

The TBC1D30 protein has been found in or associated with the cytoplasm and the plasma membrane from antibody studies.[14]

The protein is mostly found to be expressed in tissues of the brain and adrenal glands.[16][11]

Transcript level regulation

There is a microRNA binding site within the 3' UTR of the TBC1D30 gene for the hsa-miR-194-5p miRNA.[17] This microRNA is involved in the Wnt/Beta-catenin signaling pathway.[18]

Protein level regulation

The protein contains some possible myristoylation, amination, and phosphorylation sites.[19] There are also some degradation sites within the RabGAP-TBC domain.[20]

Homology and evolution

TBC1D30 has a large amount of orthologs. Analysis of these homologs allow us to ascertain the most important amino acids, i.e., the ones that are conserved. The most highly conserved amino acids among vertebrates, invertebrates, fungi, plants, bacteria and protists with available sequences were trp236, arg255, trp259, ile297, asp300, arg303, thr304, leu321, leu325, ala327, gly336, tyr337, cys338, gln339, leu349, glu356, pro399, trp432, trp450, asp451, arg463, and leu466.[21][22] The RabGAP domain within the gene originated approximately 4 billion years ago, as it is present within Terriglobus roseus,[23] which is an acidobacterium that diverged from humans 4.09 billion years ago.[24] The whole gene likely originated approximately 1.3 billion years ago, as there are still amino acids conserved past the RabGAP domain, and into the DUF4682 domain for Lithospermum erythrorhizon and Nicotiana attenuata.[23] These two plants diverged from humans about 1.275 billions years ago.[24]

A) Unrooted phylogenetic tree of the most distant orthologs. PPu: Porphyridium purpureum (Red Marine Microalga), TRo: Terriglobus roseus, ACa: Acanthamoeba castellanii str. Neff, LEr: Lithospermum erythrorhizon (Purple Gromwell), Nat: Nicotiana attenuata (Coyote Tobacco), ZNe: Zootermopsis nevadensis (Nevada Termite), Obi: Octopus bimaculoides (California Two-Spot Octopus), RTo: Rhodotorula toruloides (Yeast). See Part B for the closer related orthologs to Homo sapiens.
B) Unrooted phylogenetic tree of the closer related orthologs. Dre: Danio rerio (Zebrafish), TEl: Thamnophis elegans (Western Terrestrial Garter Snake), MNe: Macaca nemestrina (Southern Pig-Tailed Macaque), HSa: Homo sapiens, MMu: Mus musculus (House Mouse), GGa: Gallus gallus (Red Junglefowl), ARo: Apteryx rowi (Okarito kiwi), CMy: Chelonia mydas (Green Sea Turtle), XTr: Xenopus tropicalis (Western Clawed Frog), RBi: Rhinatrema bivittatum (Two-Lined Caecilian), ECa: Erpetoichthys calabaricus (Reed Fish).

The gene is evolving at a slower pace than Fibrinogen alpha, which evolves very quickly, but at a faster pace than Cytochrome C, which evolves very slowly.

The rate of divergence, and thus evolution, is compared to that of Fibrinogen alpha, and Cytochrome C. The organisms included, in order of most recent to most distant, are Homo sapiens, Macaca fascicularis, Mus musculus, Monodelphis domestica, Ornithorhynchus anatinus, Gallus gallus, Xenopus tropicalis, Danio rerio, Zootermopsis nevadensis, Trichoplax, Saccharomyces cerevisiae, and Arabidopsis thaliana. For the TBC1D30 line. Cytochrome C used Danio rerio, Zootermopsis nevadensis, Trichoplax, Saccharomyces cerevisiae, and Arabidopsis thaliana. Fibrinogen alpha used Homo sapiens, Macaca fascicularis, Mus musculus, Monodelphis domestica, Ornithorhynchus anatinus, and Gallus gallus.

Interacting proteins

TBC1D30 likely interacts with STX3,[25] ZRANB1[26] and ESR1.[27] These interactions were found through affinity capture and Western blot, affinity capture and mass spectrometry, and two-hybrid screening respectively.[28]

Clinical significance

A Single Nucleotide Polymorphism (SNP), rs11615287, at the start of the RabGAP-TBC domain[29] is likely to be damaging to the protein.[30]

Studies have investigated how TBC1D30 affects insulin processing.[31]

References

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000111490 – Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000052302 – Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ a b Kelley LA, Mezulis S, Yates CM, Wass MN, Sternberg MJ (June 2015). "The Phyre2 web portal for protein modeling, prediction and analysis". Nature Protocols. 10 (6): 845–858. doi:10.1038/nprot.2015.053. PMC 5298202. PMID 25950237.
  6. ^ "I-TASSER server for protein structure and function prediction". Zhang Lab. yangzhanglabumich.edu. Retrieved 2021-12-09.
  7. ^ a b "Blat Results". UCSC Genome Browser.
  8. ^ a b "TBC1 domain family member 30 isoform X1 [Homo sapiens]". NCBI Protein. NCBI.
  9. ^ "PREDICTED: Homo sapiens TBC1 domain family member 30 (TBC1D30), transcript variant X1, mRNA". NCBI Nucleotide. NCBI. 22 November 2021.
  10. ^ "Homo sapiens TBC1 domain family member 30 (TBC1D30), transcript variant 1, mRNA". NCBI Nucleotide. NCBI. 17 April 2022.
  11. ^ a b c d e "TBC1D30 TBC1 domain family member 30 [Homo sapiens (human)] - Gene - NCBI". www.ncbi.nlm.nih.gov. Retrieved 2021-12-08.
  12. ^ "tbc1d30 human - Protein - NCBI". www.ncbi.nlm.nih.gov. Retrieved 2021-12-09.
  13. ^ "ExPASy - Compute pI/Mw tool". web.expasy.org. SIB Swiss Institute of Bioinformatics. Retrieved 2021-12-08.
  14. ^ a b "TBC1D30 Antibody (PA5-58923)". www.thermofisher.com. Retrieved 2021-12-09.
  15. ^ "Genome Annotation and Browser". Genomatix. Precigen Bioinformatics Germany.
  16. ^ "GDS596 / 213912_at". www.ncbi.nlm.nih.gov. Retrieved 2021-12-08.
  17. ^ "TargetScanHuman 8.0 predicted targeting of Human TBC1D30". www.targetscan.org. Retrieved 2021-12-09.
  18. ^ Yang F, Xiao Z, Zhang S (December 2018). "Knockdown of miR-194-5p inhibits cell proliferation, migration and invasion in breast cancer by regulating the Wnt/β-catenin signaling pathway". International Journal of Molecular Medicine. 42 (6): 3355–3363. doi:10.3892/ijmm.2018.3897. PMC 6202083. PMID 30272253.
  19. ^ "Motif Scan". myhits.sib.swiss. Retrieved 2021-12-09.
  20. ^ "ELM - HSa_TBC1d30 XP_024304669.1 TBC1 domain family member 30 isoform X1 [Homo sapiens]". elm.eu.org. Retrieved 2021-12-09.
  21. ^ "Clustal Omega < Multiple Sequence Alignment < EMBL-EBI". www.ebi.ac.uk. Retrieved 2021-12-09.
  22. ^ "Standard Protein BLAST". BLAST. NCBI.
  23. ^ a b "Multiple Sequence Alignment". Clustal Omega. EMBL.
  24. ^ a b "TimeTree". TimeTree.
  25. ^ Vogel GF, Klee KM, Janecke AR, Müller T, Hess MW, Huber LA (November 2015). "Cargo-selective apical exocytosis in epithelial cells is conducted by Myo5B, Slp4a, Vamp7, and Syntaxin 3". The Journal of Cell Biology. 211 (3): 587–604. doi:10.1083/jcb.201506112. PMC 4639860. PMID 26553929.
  26. ^ Luck K, Kim DK, Lambourne L, Spirohn K, Begg BE, Bian W, et al. (April 2020). "A reference map of the human binary protein interactome". Nature. 580 (7803): 402–408. Bibcode:2020Natur.580..402L. doi:10.1038/s41586-020-2188-x. PMC 7169983. PMID 32296183.
  27. ^ Nassa G, Giurato G, Salvati A, Gigantino V, Pecoraro G, Lamberti J, et al. (September 2019). "The RNA-mediated estrogen receptor α interactome of hormone-dependent human breast cancer cell nuclei". Scientific Data. 6 (1): 173. Bibcode:2019NatSD...6..173N. doi:10.1038/s41597-019-0179-2. PMC 6746822. PMID 31527615.
  28. ^ "TBC1D30 Result Summary | BioGRID". BioGRID. TyersLab.com. Retrieved 2021-12-17.
  29. ^ "SNP linked to Gene (geneID:23329) Via Contig Annotation". www.ncbi.nlm.nih.gov. Retrieved 2021-12-09.
  30. ^ Adzhubei IA, Schmidt S, Peshkin L, Ramensky VE, Gerasimova A, Bork P, et al. (April 2010). "A method and server for predicting damaging missense mutations". Nature Methods. 7 (4): 248–249. doi:10.1038/nmeth0410-248. PMC 2855889. PMID 20354512.
  31. ^ Parsons VA, Vadlamudi S, Moxley AH, Mohlke KL (June 21, 2021). "25-OR: Role for TBC1D30 in Secretion of Mature Insulin". Diabetes. 70. doi:10.2337/db21-25-OR. S2CID 237885967.
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