Q9NQH7 (XPP3_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
January 25, 2012.
Version 92.
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: Probable Xaa-Pro aminopeptidase 3 Short name=X-Pro aminopeptidase 3 EC=3.4.11.9 Alternative name(s): Aminopeptidase P3 Short name=APP3 | ||
| Gene names |
| ||
| 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 | 507 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Catalytic activity | Release of any N-terminal amino acid, including proline, that is linked to proline, even from a dipeptide or tripeptide. |
| Cofactor | Binds 2 manganese ions per subunit By similarity. |
| Subcellular location | |
| Tissue specificity | Isoform 1 and isoform 2 are widely expressed, with isoform 1 being more abundant. Ref.8 |
| Involvement in disease | Defects in XPNPEP3 are the cause of nephronophthisis-like nephropathy type 1 (NPHPL1) [MIM:613159]. A disorder with features of nephronophthisis, a cystic kidney disease leading to end-stage renal failure. Nephronophthisis is histologically characterized by modifications of the tubules with thickening of the basement membrane, interstitial fibrosis and, in the advanced stages, medullary cysts. Typical clinical manifestation are chronic renal failure, anemia, polyuria, polydipsia, isosthenuria, and growth retardation. Associations with extrarenal symptoms are frequent. In NPHPL1 patients, extrarenal symptoms include hypertension, essential tremor, sensorineural hearing loss and gout. Severely affected individuals can manifest a mitochondrial disorder with isolated complex I deficiency activity in muscle, seizures, mental retardation and hypertrophic dilated cardiomyopathy. Ref.10 |
| Sequence similarities | Belongs to the peptidase M24B family. |
Ontologies
| Keywords | |
|---|---|
| Cellular component | Mitochondrion |
| Coding sequence diversity | Alternative splicing Polymorphism |
| Disease | Ciliopathy Disease mutation Nephronophthisis |
| Ligand | Manganese Metal-binding |
| Molecular function | Aminopeptidase Hydrolase Metalloprotease Protease |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Biological process | cellular process Inferred from electronic annotation. Source: InterPro proteolysisInferred from electronic annotation. Source: UniProtKB-KW |
| Cellular component | mitochondrion Inferred from electronic annotation. Source: UniProtKB-SubCell |
| Molecular function | aminopeptidase activity Inferred from electronic annotation. Source: UniProtKB-KW manganese ion bindingInferred from electronic annotation. Source: InterPro metallopeptidase activityInferred from electronic annotation. Source: UniProtKB-KW |
| Complete GO annotation... | |
Alternative products
| This entry describes 5 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q9NQH7-1) 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: Q9NQH7-2) The sequence of this isoform differs from the canonical sequence as follows: 1-79: Missing. | ||||||
| Isoform 3 (identifier: Q9NQH7-3) The sequence of this isoform differs from the canonical sequence as follows: 265-278: AFIETMFTSKAPVE → RQGFSVLSRLVSNS 279-507: Missing. | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 4 (identifier: Q9NQH7-4) The sequence of this isoform differs from the canonical sequence as follows: 1-23: Missing. | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 5 (identifier: Q9NQH7-5) The sequence of this isoform differs from the canonical sequence as follows: 265-288: AFIETMFTSKAPVEEAFLYAKFEF → KSVLLARHGGSRLYSHHFGRPRLS 289-507: Missing. | ||||||
| Note: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 507 | 507 | Probable Xaa-Pro aminopeptidase 3 | PRO_0000255654 | |||||
Sites | |||||||||
| Metal binding | 331 | 1 | Manganese 2 By similarity | ||||||
| Metal binding | 342 | 1 | Manganese 1 By similarity | ||||||
| Metal binding | 342 | 1 | Manganese 2 By similarity | ||||||
| Metal binding | 424 | 1 | Manganese 1 By similarity | ||||||
| Metal binding | 451 | 1 | Manganese 1 By similarity | ||||||
| Metal binding | 475 | 1 | Manganese 1 By similarity | ||||||
| Metal binding | 475 | 1 | Manganese 2 By similarity | ||||||
Natural variations | |||||||||
| Alternative sequence | 1 – 79 | 79 | Missing in isoform 2. | VSP_021296 | |||||
| Alternative sequence | 1 – 23 | 23 | Missing in isoform 4. | VSP_040142 | |||||
| Alternative sequence | 265 – 288 | 24 | AFIET…AKFEF → KSVLLARHGGSRLYSHHFGR PRLS in isoform 5. | VSP_040143 | |||||
| Alternative sequence | 265 – 278 | 14 | AFIET…KAPVE → RQGFSVLSRLVSNS in isoform 3. | VSP_021297 | |||||
| Alternative sequence | 279 – 507 | 229 | Missing in isoform 3. | VSP_021298 | |||||
| Alternative sequence | 289 – 507 | 219 | Missing in isoform 5. | VSP_040144 | |||||
| Natural variant | 450 | 1 | I → L. Corresponds to variant rs17002243 [ dbSNP | Ensembl ]. | VAR_051573 | |||||
| Natural variant | 453 | 1 | G → C in NPHPL1. Ref.10 | VAR_063820 | |||||
Experimental info | |||||||||
| Sequence conflict | 340 | 1 | V → A in CAG33677. Ref.1 | ||||||
| Sequence conflict | 486 | 1 | L → F in AAH01681. Ref.7 | ||||||
Sequences
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References
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | CR457396 mRNA. Translation: CAG33677.1. AL365514 mRNA. Translation: CAB97210.1. CR456442 mRNA. Translation: CAG30328.1. AK301635 mRNA. Translation: BAH13526.1. AK301758 mRNA. Translation: BAH13548.1. AK313770 mRNA. Translation: BAG36508.1. AL834310 mRNA. Translation: CAD38980.1. Z98048, AL035450 Genomic DNA. Translation: CAI20492.1. AL035450, Z98048 Genomic DNA. Translation: CAI19023.1. CH471095 Genomic DNA. Translation: EAW60399.1. BC001208 mRNA. Translation: AAH01208.1. BC001681 mRNA. Translation: AAH01681.1. BC004989 mRNA. Translation: AAH04989.1. |
| IPI | IPI00550192. IPI00794503. IPI00795212. IPI00922067. IPI00922407. |
| RefSeq | NP_071381.1. NM_022098.3. |
| UniGene | Hs.529163. |
3D structure databases | |
| HSSP | HSSP built from PDB template 1PV9 based on UniProtKB P81535. |
| ProteinModelPortal | Q9NQH7. |
| SMR | Q9NQH7. Positions 58-505. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | Q9NQH7. 4 interactions. |
| MINT | MINT-1142970. |
| STRING | Q9NQH7. |
Protein family/group databases | |
| MEROPS | M24.026. |
Polymorphism databases | |
| DMDM | 74761652. |
Proteomic databases | |
| PRIDE | Q9NQH7. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000357137; ENSP00000349658; ENSG00000196236. |
| GeneID | 63929. |
| KEGG | hsa:63929. |
| NMPDR | fig|9606.3.peg.21772. |
| UCSC | uc003azh.1. human. uc003azi.1. human. |
Organism-specific databases | |
| CTD | 63929. |
| GeneCards | GC22P041253. |
| HGNC | HGNC:28052. XPNPEP3. |
| HPA | HPA000527. |
| MIM | 613159. phenotype. 613553. gene. |
| neXtProt | NX_Q9NQH7. |
| Orphanet | 655. Autosomal recessive medullary cystic kidney disease. |
| PharmGKB | PA147357130. |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | prNOG07556. |
| GeneTree | ENSGT00550000074909. |
| HOGENOM | HBG545079. |
| HOVERGEN | HBG057305. |
| InParanoid | Q9NQH7. |
| OMA | SHKAILF. |
| PhylomeDB | Q9NQH7. |
Gene expression databases | |
| ArrayExpress | Q9NQH7. |
| Bgee | Q9NQH7. |
| CleanEx | HS_XPNPEP3. |
| Genevestigator | Q9NQH7. |
Family and domain databases | |
| InterPro | IPR007865. Aminopep_P_N. IPR000994. Pept_M24_structural-domain. [Graphical view] |
| Gene3D | G3DSA:3.90.230.10. Peptidase_M24_cat_core. 1 hit. |
| KO | K01262. |
| Pfam | PF05195. AMP_N. 1 hit. PF00557. Peptidase_M24. 1 hit. [Graphical view] |
| SMART | SM01011. AMP_N. 1 hit. [Graphical view] |
| SUPFAM | SSF55920. Peptidase_M24_cat_core. 1 hit. |
| ProtoNet | Search... |
Other | |
| NextBio | 65674. |
| SOURCE | Search... |
Entry information
| Entry name | XPP3_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q9NQH7 Secondary accession number(s): B2R9G1 Q9BVH0 | ||||||||
| 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
| Peptidase families Classification of peptidase families and list of entries |
| Human chromosome 22 Human chromosome 22: 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