A0AVT1 (UBA6_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 72.
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: Ubiquitin-like modifier-activating enzyme 6 Short name=Ubiquitin-activating enzyme 6 Alternative name(s): Monocyte protein 4 Short name=MOP-4 Ubiquitin-activating enzyme E1-like protein 2 Short name=E1-L2 | ||||
| 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 | 1052 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Activates ubiquitin by first adenylating its C-terminal glycine residue with ATP, and thereafter linking this residue to the side chain of a cysteine residue in E1, yielding an ubiquitin-E1 thioester and free AMP. Specific for ubiquitin, does not activate ubiquitin-like peptides. Differs from UBE1 in its specificity for substrate E2 charging. Does not charge cell cycle E2s, such as CDC34. Essential for embryonic development. Required for UBD/FAT10 conjugation. Isoform 2 may play a key role in ubiquitin system and may influence spermatogenesis and male fertility. Ref.1 Ref.2 Ref.8 |
| Pathway | |
| Subunit structure | Forms a thioester with UBD in cells stimulated with tumor necrosis factor-alpha (TNFa) and interferon-gamma (IFNg). |
| Tissue specificity | Widely expressed. Isoform 2 is predominantly expressed in testis with higher expression in adult testis than in fetal testis. Ref.1 Ref.2 |
| Sequence similarities | Belongs to the ubiquitin-activating E1 family. |
| Sequence caution | The sequence BAA91824.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally extended. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Ubl conjugation pathway |
| Coding sequence diversity | Alternative splicing Polymorphism |
| Ligand | ATP-binding Nucleotide-binding |
| Molecular function | Ligase |
| PTM | Acetylation |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Biological_process | protein ubiquitination Inferred from mutant phenotype Ref.8. Source: UniProtKB ubiquitin-dependent protein catabolic processInferred from mutant phenotype Ref.8. Source: UniProtKB |
| Cellular_component | cytoplasm Inferred from direct assay. Source: LIFEdb |
| Molecular_function | ATP binding Inferred from electronic annotation. Source: UniProtKB-KW FAT10 activating enzyme activityInferred from mutant phenotype Ref.8. Source: UniProtKB ligase activityInferred from electronic annotation. Source: UniProtKB-KW |
| Complete GO annotation... | |
Alternative products
| This entry describes 4 isoforms produced by alternative splicing. [Align] [Select] Note: Named isoforms=3. | ||||||
| Isoform 1 (identifier: A0AVT1-1) 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: A0AVT1-2) Also known as: nUBE1L; The sequence of this isoform differs from the canonical sequence as follows: 1-474: Missing. | ||||||
| Isoform 3 (identifier: A0AVT1-3) The sequence of this isoform differs from the canonical sequence as follows: 369-389: PDVNADIVHWLSWTAQGFLSP → VTIEIYGCPNICLLIHKCSVY 390-1052: Missing. | ||||||
| Isoform 4 (identifier: A0AVT1-4) The sequence of this isoform differs from the canonical sequence as follows: 321-340: APLEIHTAMLALDQFQEKYS → VNKHFAGLREAAESEMRISE 341-1052: Missing. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 1052 | 1052 | Ubiquitin-like modifier-activating enzyme 6 | PRO_0000277797 | |||||
Regions | |||||||||
| Nucleotide binding | 470 – 500 | 31 | ATP By similarity | ||||||
Sites | |||||||||
| Active site | 625 | 1 | Glycyl thioester intermediate By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 544 | 1 | N6-acetyllysine Ref.9 | ||||||
Natural variations | |||||||||
| Alternative sequence | 1 – 474 | 474 | Missing in isoform 2. | VSP_023083 | |||||
| Alternative sequence | 321 – 340 | 20 | APLEI…QEKYS → VNKHFAGLREAAESEMRISE in isoform 4. | VSP_023084 | |||||
| Alternative sequence | 341 – 1052 | 712 | Missing in isoform 4. | VSP_023085 | |||||
| Alternative sequence | 369 – 389 | 21 | PDVNA…GFLSP → VTIEIYGCPNICLLIHKCSV Y in isoform 3. | VSP_023086 | |||||
| Alternative sequence | 390 – 1052 | 663 | Missing in isoform 3. | VSP_023087 | |||||
| Natural variant | 224 | 1 | A → T. Ref.2 Ref.4 Ref.5 Corresponds to variant rs10010188 [ dbSNP | Ensembl ]. | VAR_030594 | |||||
Experimental info | |||||||||
| Mutagenesis | 625 | 1 | C → A or S: Impairs ubiquitin activation. Ref.2 Ref.8 | ||||||
| Sequence conflict | 14 | 1 | E → K in CAD89908. Ref.5 | ||||||
| Sequence conflict | 140 | 1 | V → A in CAD89908. Ref.5 | ||||||
| Sequence conflict | 197 | 1 | C → Y in BAC04463. Ref.4 | ||||||
| Sequence conflict | 234 | 1 | N → D in CAD89959. Ref.5 | ||||||
| Sequence conflict | 297 | 1 | V → A in BAC04463. Ref.4 | ||||||
| Sequence conflict | 645 | 1 | F → V in AAQ63403. Ref.1 | ||||||
| Sequence conflict | 803 | 1 | Q → H in BAA91824. Ref.4 | ||||||
| Sequence conflict | 821 | 1 | E → G in CAD89959. Ref.5 | ||||||
| Sequence conflict | 868 | 1 | L → P in CAD89908. Ref.5 | ||||||
| Sequence conflict | 905 | 1 | V → G in AAQ63403. Ref.1 | ||||||
| Sequence conflict | 909 | 1 | M → K in CAD89959. Ref.5 | ||||||
| Sequence conflict | 920 | 1 | A → V in BAB19785. Ref.3 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Identification and characteristics of a novel E1 like gene nUBE1L in human testis." Zhu H., Zhou Z.-M., Huo R., Huang X.-Y., Lu L., Lin M., Wang L.-R., Zhou Y.-D., Li J.-M., Sha J.-H. Acta Biochim. Biophys. Sin. 36:227-234(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2), TISSUE SPECIFICITY, FUNCTION. |
| [2] | "Dual E1 activation systems for ubiquitin differentially regulate E2 enzyme charging." Jin J., Li X., Gygi S.P., Harper J.W. Nature 447:1135-1138(2007) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), VARIANT THR-224, FUNCTION, TISSUE SPECIFICITY, MUTAGENESIS OF CYS-625. |
| [3] | "Molecular and biological characterization of a new ubiquitin-activating enzyme E1 like protein, MOP-4 which is highly expressed in human monocytes." Takayama K., Fujii Y., Ukai Y., Yoshimoto M. Submitted (MAY-1998) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1). Tissue: Blood. |
| [4] | "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] (ISOFORMS 1 AND 4), VARIANT THR-224. Tissue: Hippocampus. |
| [5] | "The full-ORF clone resource of the German cDNA consortium." Bechtel S., Rosenfelder H., Duda A., Schmidt C.P., Ernst U., Wellenreuther R., Mehrle A., Schuster C., Bahr A., Bloecker H., Heubner D., Hoerlein A., Michel G., Wedler H., Koehrer K., Ottenwaelder B., Poustka A., Wiemann S., Schupp I. BMC Genomics 8:399-399(2007) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1), VARIANT THR-224. Tissue: Skeletal muscle. |
| [6] | "Generation and annotation of the DNA sequences of human chromosomes 2 and 4." Hillier L.W., Graves T.A., Fulton R.S., Fulton L.A., Pepin K.H., Minx P., Wagner-McPherson C., Layman D., Wylie K., Sekhon M., Becker M.C., Fewell G.A., Delehaunty K.D., Miner T.L., Nash W.E., Kremitzki C., Oddy L., Du H. Wilson R.K.Nature 434:724-731(2005) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [7] | "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] (ISOFORMS 1 AND 3). Tissue: Brain. |
| [8] | "E1-L2 activates both ubiquitin and FAT10." Chiu Y.-H., Sun Q., Chen Z.J. Mol. Cell 27:1014-1023(2007) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, INTERACTION WITH UBD, THIOESTER FORMATION, MUTAGENESIS OF CYS-625. |
| [9] | "Lysine acetylation targets protein complexes and co-regulates major cellular functions." Choudhary C., Kumar C., Gnad F., Nielsen M.L., Rehman M., Walther T.C., Olsen J.V., Mann M. Science 325:834-840(2009) [PubMed] [Europe PMC] [Abstract] Cited for: ACETYLATION [LARGE SCALE ANALYSIS] AT LYS-544, MASS SPECTROMETRY. |
| [10] | "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]. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AY359880 mRNA. Translation: AAQ63403.1. EF623993 mRNA. Translation: ABR25253.1. AB014773 mRNA. Translation: BAB19785.1. AK001670 mRNA. Translation: BAA91824.1. Different initiation. AK094969 mRNA. Translation: BAC04463.1. AK314371 mRNA. Translation: BAG37000.1. AL832015 mRNA. Translation: CAD89908.1. AL832458 mRNA. Translation: CAD89959.1. AC079880 Genomic DNA. No translation available. AC096720 Genomic DNA. Translation: AAY40999.1. BC031637 mRNA. Translation: AAH31637.1. BC126484 mRNA. Translation: AAI26485.1. BC126486 mRNA. Translation: AAI26487.1. |
| IPI | IPI00023647. IPI00827491. IPI00827864. IPI00828006. |
| RefSeq | NP_060697.4. NM_018227.5. |
| UniGene | Hs.212774. |
3D structure databases | |
| ProteinModelPortal | A0AVT1. |
| ModBase | Search... |
Protein-protein interaction databases | |
| MINT | MINT-1195700. |
PTM databases | |
| PhosphoSite | A0AVT1. |
Proteomic databases | |
| PaxDb | A0AVT1. |
| PRIDE | A0AVT1. |
Protocols and materials databases | |
| DNASU | 55236. |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000322244; ENSP00000313454; ENSG00000033178. ENST00000420827; ENSP00000399234; ENSG00000033178. |
| GeneID | 55236. |
| KEGG | hsa:55236. |
| UCSC | uc003hdg.4. human. uc003hdi.3. human. uc003hdj.2. human. |
Organism-specific databases | |
| CTD | 55236. |
| GeneCards | GC04M068481. |
| H-InvDB | HIX0031574. HIX0120163. |
| HGNC | HGNC:25581. UBA6. |
| HPA | HPA037001. |
| MIM | 611361. gene. |
| neXtProt | NX_A0AVT1. |
| PharmGKB | PA162407690. |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | COG0476. |
| HOVERGEN | HBG054199. |
| InParanoid | A0AVT1. |
| KO | K10699. |
| OMA | SRRPRNW. |
| OrthoDB | EOG4NKBTS. |
| PhylomeDB | A0AVT1. |
Enzyme and pathway databases | |
| Reactome | REACT_6900. Immune System. |
| UniPathway | UPA00143. |
Gene expression databases | |
| ArrayExpress | A0AVT1. |
| Bgee | A0AVT1. |
| Genevestigator | A0AVT1. |
Family and domain databases | |
| Gene3D | 1.10.3240.10. 2 hits. 3.40.50.720. 4 hits. |
| InterPro | IPR009036. Molybdenum_cofac_synth_MoeB. IPR016040. NAD(P)-bd_dom. IPR000594. ThiF_NAD_FAD-bd. IPR018965. Ub-activating_enz_e1_C. IPR023280. Ub-like_act_enz_cat_cys_dom. IPR000127. UBact_repeat. IPR019572. Ubiquitin-activating_enzyme. IPR018075. UBQ-activ_enz_E1. IPR000011. UBQ/SUMO-activ_enz_E1-like. [Graphical view] |
| Pfam | PF00899. ThiF. 2 hits. PF09358. UBA_e1_C. 1 hit. PF10585. UBA_e1_thiolCys. 1 hit. PF02134. UBACT. 1 hit. [Graphical view] |
| PRINTS | PR01849. UBIQUITINACT. |
| SMART | SM00985. UBA_e1_C. 1 hit. [Graphical view] |
| SUPFAM | SSF69572. MoeB. 2 hits. |
| TIGRFAMs | TIGR01408. Ube1. 1 hit. |
| PROSITE | PS00536. UBIQUITIN_ACTIVAT_1. False negative. PS00865. UBIQUITIN_ACTIVAT_2. False negative. [Graphical view] |
| ProtoNet | Search... |
Other | |
| ChiTaRS | UBA6. human. |
| GenomeRNAi | 55236. |
| NextBio | 59255. |
| SOURCE | Search... |
Entry information
| Entry name | UBA6_HUMAN | ||||||||
| Accession | Primary (citable) accession number: A0AVT1 Secondary accession number(s): A6N8M7 Q9NVC9 | ||||||||
| 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 4 Human chromosome 4: 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 |
| PATHWAY comments Index of metabolic and biosynthesis pathways |
| SIMILARITY comments Index of protein domains and families |

Clusters with
