Q9BSV6 (SEN34_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 97.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: tRNA-splicing endonuclease subunit Sen34 EC=3.1.27.9 Alternative name(s): Leukocyte receptor cluster member 5 tRNA-intron endonuclease Sen34 Short name=HsSen34 | ||||
| Gene names |
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| Organism | Homo sapiens (Human) [Reference proteome] | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo![]() |
Protein attributes
| Sequence length | 310 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Constitutes one of the two catalytic subunit of the tRNA-splicing endonuclease complex, a complex responsible for identification and cleavage of the splice sites in pre-tRNA. It cleaves pre-tRNA at the 5'- and 3'-splice sites to release the intron. The products are an intron and two tRNA half-molecules bearing 2',3'-cyclic phosphate and 5'-OH termini. There are no conserved sequences at the splice sites, but the intron is invariably located at the same site in the gene, placing the splice sites an invariant distance from the constant structural features of the tRNA body. It probably carries the active site for 3'-splice site cleavage. The tRNA splicing endonuclease is also involved in mRNA processing via its association with pre-mRNA 3'-end processing factors, establishing a link between pre-tRNA splicing and pre-mRNA 3'-end formation, suggesting that the endonuclease subunits function in multiple RNA-processing events. Ref.1 |
| Catalytic activity | Endonucleolytic cleavage of pre-tRNA, producing 5'-hydroxy and 2',3'-cyclic phosphate termini, and specifically removing the intron. |
| Subunit structure | tRNA splicing endonuclease is a heterotetramer composed of SEN2, SEN15, SEN34/LENG5 and SEN54. tRNA splicing endonuclease complex also contains proteins of the pre-mRNA 3'-end processing machinery such as CLP1, CPSF1, CPSF4 and CSTF2. Ref.6 |
| Subcellular location | Nucleus. Nucleus › nucleolus. Note: May be transiently localized in the nucleolus. Ref.1 |
| Involvement in disease | Pontocerebellar hypoplasia 2C (PCH2C) [MIM:612390]: A disorder characterized by an abnormally small cerebellum and brainstem, and progressive microcephaly from birth combined with extrapyramidal dyskinesia. Severe chorea occurs and epilepsy is frequent. There are no signs of spinal cord anterior horn cells degeneration. |
| Miscellaneous | Belongs to the leukocyte receptor cluster (LRC) present on 19q13.4. |
| Sequence similarities | Belongs to the tRNA-intron endonuclease family. |
| Sequence caution | The sequence BAB15284.1 differs from that shown. Reason: Erroneous termination at position 311. Translated as stop. |
Ontologies
| Keywords | |
|---|---|
| Biological process | mRNA processing tRNA processing |
| Cellular component | Nucleus |
| Coding sequence diversity | Polymorphism |
| Disease | Disease mutation Pontocerebellar hypoplasia |
| Molecular function | Endonuclease Hydrolase Nuclease |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Biological_process | mRNA processing Inferred from electronic annotation. Source: UniProtKB-KW nucleic acid phosphodiester bond hydrolysisInferred from electronic annotation. Source: GOC tRNA-type intron splice site recognition and cleavageInferred from electronic annotation. Source: InterPro |
| Cellular_component | nucleolus Inferred from electronic annotation. Source: UniProtKB-SubCell tRNA-intron endonuclease complexInferred from electronic annotation. Source: InterPro |
| Molecular_function | nucleic acid binding Inferred from electronic annotation. Source: InterPro tRNA-intron endonuclease activityInferred from electronic annotation. Source: EC |
| Complete GO annotation... | |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 310 | 310 | tRNA-splicing endonuclease subunit Sen34 | PRO_0000109463 | |||||
Sites | |||||||||
| Active site | 247 | 1 | By similarity | ||||||
| Active site | 255 | 1 | By similarity | ||||||
| Active site | 286 | 1 | By similarity | ||||||
Natural variations | |||||||||
| Natural variant | 58 | 1 | R → W in PCH2C. Ref.9 | VAR_054811 | |||||
| Natural variant | 112 | 1 | L → V. Ref.2 Corresponds to variant rs17849378 [ dbSNP | Ensembl ]. | VAR_061149 | |||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Identification of a human endonuclease complex reveals a link between tRNA splicing and pre-mRNA 3' end formation." Paushkin S.V., Patel M., Furia B.S., Peltz S.W., Trotta C.R. Cell 117:311-321(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA], FUNCTION, SUBCELLULAR LOCATION, COMPONENT OF A COMPLEX WITH SEN2; SEN15; SEN54 AND CLP1. |
| [2] | "Complete sequencing and characterization of 21,243 full-length human cDNAs." Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S. Sugano S.Nat. Genet. 36:40-45(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA], VARIANT VAL-112. Tissue: Kidney epithelium. |
| [3] | "The DNA sequence and biology of human chromosome 19." Grimwood J., Gordon L.A., Olsen A.S., Terry A., Schmutz J., Lamerdin J.E., Hellsten U., Goodstein D., Couronne O., Tran-Gyamfi M., Aerts A., Altherr M., Ashworth L., Bajorek E., Black S., Branscomb E., Caenepeel S., Carrano A.V. Lucas S.M.Nature 428:529-535(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [4] | Mural R.J., Istrail S., Sutton G.G., Florea L., Halpern A.L., Mobarry C.M., Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., Turner R. Venter J.C.Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [5] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Tissue: Brain and Eye. |
| [6] | "Extensive gene duplications and a large inversion characterize the human leukocyte receptor cluster." Wende H., Volz A., Ziegler A. Immunogenetics 51:703-713(2000) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION IN THE LRC. |
| [7] | Erratum Wende H., Volz A., Ziegler A. Immunogenetics 52:3-4(2001) |
| [8] | "Initial characterization of the human central proteome." Burkard T.R., Planyavsky M., Kaupe I., Breitwieser F.P., Buerckstuemmer T., Bennett K.L., Superti-Furga G., Colinge J. BMC Syst. Biol. 5:17-17(2011) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. |
| [9] | "tRNA splicing endonuclease mutations cause pontocerebellar hypoplasia." Budde B.S., Namavar Y., Barth P.G., Poll-The B.T., Nuernberg G., Becker C., van Ruissen F., Weterman M.A.J., Fluiter K., te Beek E.T., Aronica E., van der Knaap M.S., Hoehne W., Toliat M.R., Crow Y.J., Steinling M., Voit T., Roelenso F. Baas F.Nat. Genet. 40:1113-1118(2008) [PubMed] [Europe PMC] [Abstract] Cited for: VARIANT PCH2C TRP-58. |
Cross-references
Entry information
| Entry name | SEN34_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q9BSV6 Secondary accession number(s): A6NNB1 Q9H6H5 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | ||||||||
Relevant documents
| Human chromosome 19 Human chromosome 19: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
