Q7L2J0 (MEPCE_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 98.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: 7SK snRNA methylphosphate capping enzyme Short name=MePCE EC=2.1.1.- Alternative name(s): Bicoid-interacting protein 3 homolog Short name=Bin3 homolog | ||||
| Gene names |
| ||||
| 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 | 689 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | S-adenosyl-L-methionine-dependent methyltransferase that adds a methylphosphate cap at the 5'-end of 7SK snRNA, leading to stabilize it. Ref.9 |
| Subunit structure | Component of the 7SK snRNP complex at least composed of P-TEFb (composed of CDK9 and CCNT1/cyclin-T1), HEXIM1, HEXIM2, MEPCE/BCDIN3, SART3 proteins and 7SK and U6 snRNAs. Ref.9 |
| Tissue specificity | Expressed in chronic myeloid leukemia cells, adrenal gland, brain, cerebellum, kidney, lung, mammary gland and testis. Weakly or not expressed in other tissues. Ref.5 |
| Sequence similarities | Belongs to the methyltransferase superfamily. Contains 1 Bin3-type SAM domain. |
| Sequence caution | The sequence AAF74767.1 differs from that shown. Reason: Erroneous initiation. The sequence AAH16396.1 differs from that shown. Reason: Erroneous initiation. The sequence BAA91040.1 differs from that shown. Reason: Erroneous initiation. |
Ontologies
| Keywords | |
|---|---|
| Coding sequence diversity | Alternative splicing |
| Ligand | S-adenosyl-L-methionine |
| Molecular function | Methyltransferase Transferase |
| PTM | Phosphoprotein |
| Technical term | 3D-structure Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Biological_process | snRNA modification Inferred from direct assay Ref.9. Source: UniProtKB |
| Molecular_function | RNA methyltransferase activity Inferred from direct assay Ref.9. Source: UniProtKB S-adenosylmethionine-dependent methyltransferase activityInferred from direct assay Ref.9. Source: UniProtKB |
| Complete GO annotation... | |
Alternative products
| This entry describes 2 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q7L2J0-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 (identifier: Q7L2J0-2) The sequence of this isoform differs from the canonical sequence as follows: 1-469: Missing. | ||||||
| Note: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||||||||||||||||||||||||||||||||||||||
Molecule processing | |||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 689 | 689 | 7SK snRNA methylphosphate capping enzyme | PRO_0000289262 | |||||||||||||||||||||||||||||||||||||||||
Regions | |||||||||||||||||||||||||||||||||||||||||||||
| Domain | 431 – 686 | 256 | Bin3-type SAM | ||||||||||||||||||||||||||||||||||||||||||
| Region | 451 – 453 | 3 | S-adenosyl-L-methionine binding | ||||||||||||||||||||||||||||||||||||||||||
| Region | 474 – 475 | 2 | S-adenosyl-L-methionine binding | ||||||||||||||||||||||||||||||||||||||||||
| Region | 559 – 560 | 2 | S-adenosyl-L-methionine binding | ||||||||||||||||||||||||||||||||||||||||||
| Compositional bias | 25 – 161 | 137 | Gly-rich | ||||||||||||||||||||||||||||||||||||||||||
Sites | |||||||||||||||||||||||||||||||||||||||||||||
| Binding site | 581 | 1 | S-adenosyl-L-methionine; via carbonyl oxygen | ||||||||||||||||||||||||||||||||||||||||||
Amino acid modifications | |||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 57 | 1 | Phosphoserine Ref.11 | ||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 60 | 1 | Phosphoserine Ref.11 Ref.12 | ||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 69 | 1 | Phosphoserine Ref.7 Ref.11 Ref.12 Ref.15 | ||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 101 | 1 | Phosphoserine Ref.15 | ||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 152 | 1 | Phosphoserine Ref.11 | ||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 175 | 1 | Phosphoserine Ref.7 Ref.10 Ref.11 | ||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 179 | 1 | Phosphoserine Ref.10 | ||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 213 | 1 | Phosphothreonine Ref.12 Ref.14 Ref.15 Ref.17 | ||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 216 | 1 | Phosphoserine Ref.12 Ref.15 | ||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 217 | 1 | Phosphoserine Ref.8 Ref.12 Ref.15 | ||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 254 | 1 | Phosphoserine Ref.11 Ref.12 Ref.13 Ref.15 | ||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 330 | 1 | Phosphoserine Ref.11 | ||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 390 | 1 | Phosphoserine Ref.15 | ||||||||||||||||||||||||||||||||||||||||||
Natural variations | |||||||||||||||||||||||||||||||||||||||||||||
| Alternative sequence | 1 – 469 | 469 | Missing in isoform 2. | VSP_044512 | |||||||||||||||||||||||||||||||||||||||||
Experimental info | |||||||||||||||||||||||||||||||||||||||||||||
| Sequence conflict | 661 | 1 | Y → N in BAG51598. Ref.1 | ||||||||||||||||||||||||||||||||||||||||||
Secondary structure | |||||||||||||||||||||||||||||||||||||||||||||
Helix Strand Turn | |||||||||||||||||||||||||||||||||||||||||||||
| Helix | 432 – 435 | 4 | |||||||||||||||||||||||||||||||||||||||||||
| Helix | 439 – 441 | 3 | |||||||||||||||||||||||||||||||||||||||||||
| Turn | 442 – 444 | 3 | |||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 445 – 451 | 7 | |||||||||||||||||||||||||||||||||||||||||||
| Helix | 456 – 464 | 9 | |||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 468 – 475 | 8 | |||||||||||||||||||||||||||||||||||||||||||
| Helix | 477 – 485 | 9 | |||||||||||||||||||||||||||||||||||||||||||
| Turn | 549 – 552 | 4 | |||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 553 – 557 | 5 | |||||||||||||||||||||||||||||||||||||||||||
| Helix | 565 – 568 | 4 | |||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 575 – 582 | 8 | |||||||||||||||||||||||||||||||||||||||||||
| Helix | 584 – 606 | 23 | |||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 607 – 616 | 10 | |||||||||||||||||||||||||||||||||||||||||||
| Helix | 620 – 624 | 5 | |||||||||||||||||||||||||||||||||||||||||||
| Turn | 625 – 628 | 4 | |||||||||||||||||||||||||||||||||||||||||||
| Helix | 631 – 639 | 9 | |||||||||||||||||||||||||||||||||||||||||||
| Helix | 644 – 646 | 3 | |||||||||||||||||||||||||||||||||||||||||||
| Helix | 647 – 651 | 5 | |||||||||||||||||||||||||||||||||||||||||||
| Turn | 654 – 656 | 3 | |||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 660 – 664 | 5 | |||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 678 – 682 | 5 | |||||||||||||||||||||||||||||||||||||||||||
Sequences
| ||||||||||||||||||||||||
References
| « Hide 'large scale' references | |
| [1] | "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] (ISOFORM 2), NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 320-689 (ISOFORM 1). Tissue: Colon mucosa. |
| [2] | "The DNA sequence of human chromosome 7." Hillier L.W., Fulton R.S., Fulton L.A., Graves T.A., Pepin K.H., Wagner-McPherson C., Layman D., Maas J., Jaeger S., Walker R., Wylie K., Sekhon M., Becker M.C., O'Laughlin M.D., Schaller M.E., Fewell G.A., Delehaunty K.D., Miner T.L. Wilson R.K.Nature 424:157-164(2003) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [3] | "Human chromosome 7: DNA sequence and biology." Scherer S.W., Cheung J., MacDonald J.R., Osborne L.R., Nakabayashi K., Herbrick J.-A., Carson A.R., Parker-Katiraee L., Skaug J., Khaja R., Zhang J., Hudek A.K., Li M., Haddad M., Duggan G.E., Fernandez B.A., Kanematsu E., Gentles S. Tsui L.-C.Science 300:767-772(2003) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [4] | "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] (ISOFORM 1). Tissue: Brain. |
| [5] | "Identification and characterization of a novel gene encoding a SEREX antigen in chronic myeloid leukaemia." Rogers S.A., Bowen D.J., Ling M., Thomson P., Wang Z., Lim S.H. Br. J. Haematol. 119:112-114(2002) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 73-689, TISSUE SPECIFICITY. |
| [6] | "Immunoaffinity profiling of tyrosine phosphorylation in cancer cells." Rush J., Moritz A., Lee K.A., Guo A., Goss V.L., Spek E.J., Zhang H., Zha X.-M., Polakiewicz R.D., Comb M.J. Nat. Biotechnol. 23:94-101(2005) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. |
| [7] | "Global, in vivo, and site-specific phosphorylation dynamics in signaling networks." Olsen J.V., Blagoev B., Gnad F., Macek B., Kumar C., Mortensen P., Mann M. Cell 127:635-648(2006) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-69 AND SER-175, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [8] | "A probability-based approach for high-throughput protein phosphorylation analysis and site localization." Beausoleil S.A., Villen J., Gerber S.A., Rush J., Gygi S.P. Nat. Biotechnol. 24:1285-1292(2006) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-217, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [9] | "Systematic analysis of the protein interaction network for the human transcription machinery reveals the identity of the 7SK capping enzyme." Jeronimo C., Forget D., Bouchard A., Li Q., Chua G., Poitras C., Therien C., Bergeron D., Bourassa S., Greenblatt J., Chabot B., Poirier G.G., Hughes T.R., Blanchette M., Price D.H., Coulombe B. Mol. Cell 27:262-274(2007) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, IDENTIFICATION IN THE 7SK SNRNP COMPLEX, CATALYTIC ACTIVITY. |
| [10] | "Combining protein-based IMAC, peptide-based IMAC, and MudPIT for efficient phosphoproteomic analysis." Cantin G.T., Yi W., Lu B., Park S.K., Xu T., Lee J.-D., Yates J.R. III J. Proteome Res. 7:1346-1351(2008) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-175 AND SER-179, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [11] | "Kinase-selective enrichment enables quantitative phosphoproteomics of the kinome across the cell cycle." Daub H., Olsen J.V., Bairlein M., Gnad F., Oppermann F.S., Korner R., Greff Z., Keri G., Stemmann O., Mann M. Mol. Cell 31:438-448(2008) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-57; SER-60; SER-69; SER-152; SER-175; SER-254 AND SER-330, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [12] | "A quantitative atlas of mitotic phosphorylation." Dephoure N., Zhou C., Villen J., Beausoleil S.A., Bakalarski C.E., Elledge S.J., Gygi S.P. Proc. Natl. Acad. Sci. U.S.A. 105:10762-10767(2008) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-60; SER-69; THR-213; SER-216; SER-217 AND SER-254, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [13] | "Large-scale proteomics analysis of the human kinome." Oppermann F.S., Gnad F., Olsen J.V., Hornberger R., Greff Z., Keri G., Mann M., Daub H. Mol. Cell. Proteomics 8:1751-1764(2009) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-254, MASS SPECTROMETRY. |
| [14] | "Quantitative phosphoproteomic analysis of T cell receptor signaling reveals system-wide modulation of protein-protein interactions." Mayya V., Lundgren D.H., Hwang S.-I., Rezaul K., Wu L., Eng J.K., Rodionov V., Han D.K. Sci. Signal. 2:RA46-RA46(2009) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT THR-213, MASS SPECTROMETRY. Tissue: Leukemic T-cell. |
| [15] | "Quantitative phosphoproteomics reveals widespread full phosphorylation site occupancy during mitosis." Olsen J.V., Vermeulen M., Santamaria A., Kumar C., Miller M.L., Jensen L.J., Gnad F., Cox J., Jensen T.S., Nigg E.A., Brunak S., Mann M. Sci. Signal. 3:RA3-RA3(2010) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-69; SER-101; THR-213; SER-216; SER-217; SER-254 AND SER-390, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [16] | "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]. |
| [17] | "System-wide temporal characterization of the proteome and phosphoproteome of human embryonic stem cell differentiation." Rigbolt K.T., Prokhorova T.A., Akimov V., Henningsen J., Johansen P.T., Kratchmarova I., Kassem M., Mann M., Olsen J.V., Blagoev B. Sci. Signal. 4:RS3-RS3(2011) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT THR-213, MASS SPECTROMETRY. |
| [18] | "Methyltransferase domain of human bicoid-interacting protein 3 homolog (drosophila)." Structural genomics consortium (SGC) Submitted (MAY-2009) to the PDB data bank Cited for: X-RAY CRYSTALLOGRAPHY (2.65 ANGSTROMS) OF 400-689 IN COMPLEX WITH SUBSTRATE. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EMBL GenBank DDBJ | AK055964 mRNA. Translation: BAG51598.1. AC092849 Genomic DNA. No translation available. CH471091 Genomic DNA. Translation: EAW76534.1. CH471091 Genomic DNA. Translation: EAW76535.1. CH471091 Genomic DNA. Translation: EAW76536.1. CH236956 Genomic DNA. Translation: EAL23834.1. BC000556 mRNA. Translation: AAH00556.2. BC016396 mRNA. Translation: AAH16396.1. Different initiation. BC018935 mRNA. Translation: AAH18935.2. AF264752 Genomic DNA. Translation: AAF74767.1. Different initiation. AK000264 mRNA. Translation: BAA91040.1. Different initiation. | ||||||||||||
| IPI | IPI00021320. | ||||||||||||
| RefSeq | NP_001181919.1. NM_001194990.1. NP_001181920.1. NM_001194991.1. NP_001181921.1. NM_001194992.1. NP_062552.2. NM_019606.5. | ||||||||||||
| UniGene | Hs.178011. | ||||||||||||
3D structure databases | |||||||||||||
| PDBe RCSB PDB PDBj |
| ||||||||||||
| ProteinModelPortal | Q7L2J0. | ||||||||||||
| ModBase | Search... | ||||||||||||
Protein-protein interaction databases | |||||||||||||
| IntAct | Q7L2J0. 7 interactions. | ||||||||||||
| STRING | 9606.ENSP00000308546. | ||||||||||||
PTM databases | |||||||||||||
| PhosphoSite | Q7L2J0. | ||||||||||||
Polymorphism databases | |||||||||||||
| DMDM | 74758999. | ||||||||||||
Proteomic databases | |||||||||||||
| PaxDb | Q7L2J0. | ||||||||||||
| PeptideAtlas | Q7L2J0. | ||||||||||||
| PRIDE | Q7L2J0. | ||||||||||||
Protocols and materials databases | |||||||||||||
| StructuralBiologyKnowledgebase | Search... | ||||||||||||
Genome annotation databases | |||||||||||||
| Ensembl | ENST00000310512; ENSP00000308546; ENSG00000146834. ENST00000414441; ENSP00000400875; ENSG00000146834. ENST00000425355; ENSP00000400045; ENSG00000146834. | ||||||||||||
| GeneID | 56257. | ||||||||||||
| KEGG | hsa:56257. | ||||||||||||
| UCSC | uc003uuw.3. human. | ||||||||||||
Organism-specific databases | |||||||||||||
| CTD | 56257. | ||||||||||||
| GeneCards | GC07P100026. | ||||||||||||
| HGNC | HGNC:20247. MEPCE. | ||||||||||||
| HPA | CAB026384. | ||||||||||||
| MIM | 611478. gene. | ||||||||||||
| neXtProt | NX_Q7L2J0. | ||||||||||||
| PharmGKB | PA162395768. | ||||||||||||
| GenAtlas | Search... | ||||||||||||
Phylogenomic databases | |||||||||||||
| eggNOG | NOG322893. | ||||||||||||
| HOGENOM | HOG000113562. | ||||||||||||
| HOVERGEN | HBG099856. | ||||||||||||
| InParanoid | Q7L2J0. | ||||||||||||
| KO | K15190. | ||||||||||||
| OMA | EKEPFLV. | ||||||||||||
| OrthoDB | EOG4GHZPB. | ||||||||||||
| PhylomeDB | Q7L2J0. | ||||||||||||
Gene expression databases | |||||||||||||
| ArrayExpress | Q7L2J0. | ||||||||||||
| Bgee | Q7L2J0. | ||||||||||||
| CleanEx | HS_MEPCE. | ||||||||||||
| Genevestigator | Q7L2J0. | ||||||||||||
Family and domain databases | |||||||||||||
| InterPro | IPR010675. Bin3. IPR024160. BIN3_SAM-bd_dom. [Graphical view] | ||||||||||||
| Pfam | PF06859. Bin3. 1 hit. [Graphical view] | ||||||||||||
| PROSITE | PS51515. BIN3_SAM. 1 hit. [Graphical view] | ||||||||||||
| ProtoNet | Search... | ||||||||||||
Other | |||||||||||||
| ChiTaRS | MEPCE. human. | ||||||||||||
| EvolutionaryTrace | Q7L2J0. | ||||||||||||
| GenomeRNAi | 56257. | ||||||||||||
| NextBio | 61905. | ||||||||||||
| SOURCE | Search... | ||||||||||||
Entry information
| Entry name | MEPCE_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q7L2J0 Secondary accession number(s): B3KP86, D6W5V7, Q9NPD4 | ||||||||
| Entry history |
| ||||||||
| 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 7 Human chromosome 7: entries, gene names and cross-references to MIM |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| PDB cross-references Index of Protein Data Bank (PDB) cross-references |
| SIMILARITY comments Index of protein domains and families |

Clusters with
