Reviewed,
UniProtKB/Swiss-Prot Q8NG27 (PJA1_HUMAN)
Last modified
June 16, 2009.
Version 63.
History...
Clusters with 100%,
90%,
50% identity |
Documents (5) |
Third-party data |
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Names and origin
| Protein names | Recommended name: E3 ubiquitin-protein ligase Praja1 Short name=Praja-1 EC=6.3.2.- Alternative name(s): RING finger protein 70 | ||||
| Gene names |
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| Organism | Homo sapiens (Human) | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo |
Protein attributes
| Sequence length | 643 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is not processed. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | Has E2-dependent E3 ubiquitin-protein ligase activity. Ubiquitinates MAGED1 antigen leading to its subsequent degradation by proteosome By similarity. May be involved in protein sorting. |
| Subunit structure | Binds ubiquitin-conjugating enzymes (E2s). In vitro, interacts with the ubiquitin-conjugating enzyme, UBE2D2. Ref.1 |
| Tissue specificity | Expressed in various regions of the brain including the cerebellum, cerebral cortex, medulla, occipital pole, frontal lobe, temporal lobe and putamen. Highest levels in the cerebral cortex. |
| Domain | The RING-type zinc finger domain interacts with an ubiquitin-conjugating enzyme (E2) and facilitates ubiquitination By similarity. |
| Post-translational modification | Substrate for E2-dependent ubiquitination. |
| Sequence similarities | Contains 1 RING-type zinc finger. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Ubl conjugation pathway |
| Coding sequence diversity | Alternative splicing Polymorphism |
| Domain | Zinc-finger |
| Ligand | Metal-binding Zinc |
| Molecular function | Ligase |
| PTM | Ubl conjugation |
| Gene Ontology (GO) | |
| Biological process | modification-dependent protein catabolic process Inferred from electronic annotation. Source: UniProtKB-KW |
| Cellular component | nucleolus Inferred from direct assay. Source: HPA |
| Molecular function | ligase activity Inferred from electronic annotation. Source: UniProtKB-KW protein bindingInferred from electronic annotation. Source: InterPro zinc ion bindingInferred from electronic annotation. Source: UniProtKB-KW |
| Complete GO annotation... | |
Alternative products
| This entry describes 2 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q8NG27-1) 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: Q8NG27-2) Also known as: PJA1-beta; Praja1-beta; The sequence of this isoform differs from the canonical sequence as follows: 98-285: Missing. | ||||||
| Note: No experimental confirmation available. Ref.1 reported that isoform 2 arises by alternative initiation. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 643 | 643 | E3 ubiquitin-protein ligase Praja1 | PRO_0000055999 | |||||
Regions | |||||||||
| Zinc finger | 595 – 636 | 42 | RING-type | ||||||
| Compositional bias | 276 – 282 | 7 | Poly-Asp | ||||||
| Compositional bias | 340 – 343 | 4 | Poly-Arg | ||||||
Natural variations | |||||||||
| Alternative sequence | 98 – 285 | 188 | Missing in isoform 2. | VSP_007518 | |||||
| Natural variant | 432 | 1 | S → N: dbSNP rs5937160. Ref.3 | VAR_052088 | |||||
| Natural variant | 606 | 1 | E → D: dbSNP rs11539157. Ref.3 | VAR_052089 | |||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "PJA1, encoding a RING-H2 finger ubiquitin ligase, is a novel human X chromosome gene abundantly expressed in brain." Yu P., Chen Y., Tagle D.A., Cai T. Genomics 79:869-874(2002) [PubMed: 12036302] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1 AND 2), INTERACTION WITH UBE2D2. |
| [2] | "The DNA sequence of the human X chromosome." Ross M.T., Grafham D.V., Coffey A.J., Scherer S., McLay K., Muzny D., Platzer M., Howell G.R., Burrows C., Bird C.P., Frankish A., Lovell F.L., Howe K.L., Ashurst J.L., Fulton R.S., Sudbrak R., Wen G., Jones M.C. Bentley D.R.Nature 434:325-337(2005) [PubMed: 15772651] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [3] | "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: 15489334] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1), VARIANTS ASN-432 AND ASP-606. Tissue: Brain, Kidney and Uterus. |
| [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: 14702039] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 282-643 (ISOFORM 1). Tissue: Embryo. |
Cross-references
Sequence databases | |
|---|---|
| AF262024 mRNA. Translation: AAM53039.1. AF264620 mRNA. Translation: AAM53040.1. AL157699 Genomic DNA. Translation: CAI41604.1. BC048323 mRNA. Translation: AAH48323.1. BC075803 mRNA. Translation: AAH75803.1. BC105051 mRNA. Translation: AAI05052.1. BC105053 mRNA. Translation: AAI05054.1. AK021892 mRNA. Translation: BAB13928.1. Different initiation. | |
| IPI | IPI00251615. IPI00294448. |
| RefSeq | NP_001027568.1. NP_071763.2. NP_660095.1. |
| UniGene | Hs.522679 |
3D structure databases | |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | Q8NG27. 7 interactions. |
PTM databases | |
| PhosphoSite | Q8NG27. |
Proteomic databases | |
| PRIDE | Q8NG27. |
Genome annotation databases | |
| Ensembl | ENSG00000181191. Homo sapiens. [Contig view] |
| GeneID | 64219. |
| KEGG | hsa:64219. |
Organism-specific databases | |
| GeneCards | GC0XM068297. |
| H-InvDB | HIX0016847. |
| HGNC | HGNC:16648. PJA1. |
| HPA | HPA000595. |
| MIM | 300420. gene. |
| PharmGKB | PA33342. |
| GenAtlas | Search... |
Phylogenomic databases | |
| HOGENOM | Q8NG27. |
| HOVERGEN | Q8NG27. |
| OMA | Q8NG27. NLASPNC. |
Gene expression databases | |
| ArrayExpress | Q8NG27. |
| Bgee | Q8NG27. |
| CleanEx | HS_PJA1. |
| GermOnline | ENSG00000181191. Homo sapiens. |
Family and domain databases | |
| InterPro | IPR018957. Znf_C3HC4_RING-type. IPR001841. Znf_RING. IPR017907. Znf_RING_CS. [Graphical view] |
| Pfam | PF00097. zf-C3HC4. 1 hit. [Graphical view] |
| SMART | SM00184. RING. 1 hit. [Graphical view] |
| PROSITE | PS00518. ZF_RING_1. False negative. PS50089. ZF_RING_2. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other Resources | |
| NextBio | 66135. |
| SOURCE | Search... |
Entry information
| Entry name | PJA1_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q8NG27 Secondary accession number(s): Q5JUT9, Q8NG28, Q9HAC1 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | HPI (Human Proteome Initiative) | ||||||||
Relevant documents
| Human chromosome X Human chromosome X: 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


