Reviewed,
UniProtKB/Swiss-Prot O75914 (PAK3_HUMAN)
Last modified
January 19, 2010.
Version 104.
History...
Clusters with 100%,
90%,
50% identity |
Documents (6) |
Third-party data |
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Names and origin
| Protein names | Recommended name: Serine/threonine-protein kinase PAK 3 EC=2.7.11.1 Alternative name(s): p21-activated kinase 3 Short name=PAK-3 Beta-PAK Oligophrenin-3 | ||||
| Gene names |
| ||||
| Organism | Homo sapiens (Human) [Complete 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 | 559 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | Key regulator of synapse formation and plasticity in the hippocampus By similarity. |
| Catalytic activity | ATP + a protein = ADP + a phosphoprotein. |
| Cofactor | Magnesium By similarity. |
| Enzyme regulation | Activated by binding small G proteins. Binding of GTP-bound CDC42 or RAC1 to the autoregulatory region releases monomers from the autoinhibited dimer, enables phosphorylation of Thr-436 and allows the kinase domain to adopt an active structure By similarity. |
| Subunit structure | Interacts tightly with GTP-bound but not GDP-bound CDC42/p21 and RAC1. Shows highly specific binding to the SH3 domains of phospholipase C-gamma and of adapter protein NCK. |
| Tissue specificity | Highly expressed in postmitotic neurons of the developing and postnatal cerebral cortex and hippocampus. |
| Post-translational modification | Autophosphorylated when activated by CDC42/p21. |
| Involvement in disease | Defects in PAK3 are the cause of mental retardation X-linked type 30 (MRX30) [MIM:300558]; also called X-linked mental retardation type 47 (MRX47). Mental retardation is a mental disorder characterized by significantly sub-average general intellectual functioning associated with impairments in adaptative behavior and manifested during the developmental period. Non-syndromic mental retardation patients do not manifest other clinical signs. Ref.1 Ref.9 Ref.10 |
| Sequence similarities | Belongs to the protein kinase superfamily. STE Ser/Thr protein kinase family. STE20 subfamily. Contains 1 CRIB domain. Contains 1 protein kinase domain. |
Ontologies
| Keywords | |
|---|---|
| Coding sequence diversity | Alternative splicing Polymorphism |
| Disease | Disease mutation Mental retardation |
| Domain | SH3-binding |
| Ligand | ATP-binding Magnesium Metal-binding Nucleotide-binding |
| Molecular function | Developmental protein Kinase Serine/threonine-protein kinase Transferase |
| PTM | Acetylation Phosphoprotein |
| Technical term | Allosteric enzyme Complete proteome |
| Gene Ontology (GO) | |
| Biological process | multicellular organismal development Inferred from electronic annotation. Source: UniProtKB-KW protein amino acid phosphorylationInferred from electronic annotation. Source: InterPro |
| Molecular function | ATP binding Inferred from electronic annotation. Source: UniProtKB-KW SH3 domain bindingInferred from electronic annotation. Source: UniProtKB-KW magnesium ion bindingInferred from electronic annotation. Source: UniProtKB-KW protein serine/threonine kinase activityInferred 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: O75914-1) 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: O75914-2) The sequence of this isoform differs from the canonical sequence as follows: 93-107: Missing. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 559 | 559 | Serine/threonine-protein kinase PAK 3 | PRO_0000086469 | |||||
Regions | |||||||||
| Domain | 70 – 83 | 14 | CRIB | ||||||
| Domain | 283 – 534 | 252 | Protein kinase | ||||||
| Nucleotide binding | 289 – 297 | 9 | ATP By similarity | ||||||
| Region | 65 – 150 | 86 | Autoregulatory region By similarity | ||||||
| Region | 65 – 123 | 59 | GTPase-binding By similarity | ||||||
| Region | 84 – 282 | 199 | Linker | ||||||
Sites | |||||||||
| Active site | 402 | 1 | Proton acceptor By similarity | ||||||
| Binding site | 312 | 1 | ATP By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 50 | 1 | Phosphoserine; by autocatalysis By similarity | ||||||
| Modified residue | 154 | 1 | Phosphoserine; by autocatalysis By similarity | ||||||
| Modified residue | 436 | 1 | Phosphothreonine; by autocatalysis By similarity | ||||||
| Modified residue | 535 | 1 | N6-acetyllysine Ref.8 | ||||||
Natural variations | |||||||||
| Alternative sequence | 93 – 107 | 15 | Missing in isoform 2. | VSP_010242 | |||||
| Natural variant | 67 | 1 | R → C in MRX30. Ref.9 | VAR_023825 | |||||
| Natural variant | 380 | 1 | A → E in MRX30. Ref.10 | VAR_023826 | |||||
| Natural variant | 440 | 1 | T → S in a colorectal adenocarcinoma sample; somatic mutation. Ref.11 | VAR_046764 | |||||
Experimental info | |||||||||
| Sequence conflict | 32 | 1 | S → F Ref.2 | ||||||
| Sequence conflict | 36 | 1 | P → S Ref.2 | ||||||
| Sequence conflict | 73 | 1 | P → S Ref.2 | ||||||
| Sequence conflict | 106 – 107 | 2 | PE → SL Ref.2 | ||||||
| Sequence conflict | 123 | 1 | T → P Ref.2 | ||||||
| Sequence conflict | 127 – 130 | 4 | QKKN → PEEE Ref.2 | ||||||
| Sequence conflict | 134 – 137 | 4 | VLDV → CSRC Ref.2 | ||||||
| Sequence conflict | 146 – 148 | 3 | TVN → PVT Ref.2 | ||||||
| Sequence conflict | 175 | 1 | T → P Ref.2 | ||||||
Sequences
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References
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AF068864 mRNA. Translation: AAC36097.1. AF155651 mRNA. Translation: AAF67008.1. AB102659 mRNA. Translation: BAC81128.1. AB102251 Genomic DNA. Translation: BAC80750.1. AB102252 Genomic DNA. Translation: BAC80751.1. AB102253 Genomic DNA. Translation: BAC80752.1. AB102254 Genomic DNA. Translation: BAC80753.1. AB102255 Genomic DNA. Translation: BAC80754.1. AB102256 Genomic DNA. Translation: BAC80755.1. AB102257 Genomic DNA. Translation: BAC80756.1. AB102258 Genomic DNA. Translation: BAC80757.1. AB102259 Genomic DNA. Translation: BAC80758.1. AB102260 Genomic DNA. Translation: BAC80759.1. AB102261 Genomic DNA. Translation: BAC80760.1. AB102262 Genomic DNA. Translation: BAC80761.1. AB102263 Genomic DNA. Translation: BAC80762.1. AB102264 Genomic DNA. Translation: BAC80763.1. AB102265 Genomic DNA. Translation: BAC80764.1. AB102266 Genomic DNA. Translation: BAC80765.1. AB102267 Genomic DNA. Translation: BAC80766.1. AB102268 Genomic DNA. Translation: BAC80767.1. AB102269 Genomic DNA. Translation: BAC80768.1. AB102270 Genomic DNA. Translation: BAC80769.1. AB102281 Genomic DNA. Translation: BAC80780.1. AB102282 Genomic DNA. Translation: BAC80781.1. AB102283 Genomic DNA. Translation: BAC80782.1. AB102284 Genomic DNA. Translation: BAC80783.1. AB102285 Genomic DNA. Translation: BAC80784.1. AB102286 Genomic DNA. Translation: BAC80785.1. AB102287 Genomic DNA. Translation: BAC80786.1. AB102288 Genomic DNA. Translation: BAC80787.1. AB102289 Genomic DNA. Translation: BAC80788.1. AB102290 Genomic DNA. Translation: BAC80789.1. AB102291 Genomic DNA. Translation: BAC80790.1. AB102292 Genomic DNA. Translation: BAC80791.1. AB102293 Genomic DNA. Translation: BAC80792.1. AB102294 Genomic DNA. Translation: BAC80793.1. AB102295 Genomic DNA. Translation: BAC80794.1. AB102296 Genomic DNA. Translation: BAC80795.1. AB102297 Genomic DNA. Translation: BAC80796.1. AB102298 Genomic DNA. Translation: BAC80797.1. AB102299 Genomic DNA. Translation: BAC80798.1. AB102300 Genomic DNA. Translation: BAC80799.1. AK290504 mRNA. Translation: BAF83193.1. AL357774, AL031117, AL117326 Genomic DNA. Translation: CAI40843.1. AL357774, AL031117, AL117326 Genomic DNA. Translation: CAI40844.1. AL031117, AL117326, AL357774 Genomic DNA. Translation: CAI43157.1. AL031117, AL117326, AL357774 Genomic DNA. Translation: CAI43158.1. AL117326, AL031117, AL357774 Genomic DNA. Translation: CAI43167.1. AL117326, AL031117, AL357774 Genomic DNA. Translation: CAI43168.1. CH471120 Genomic DNA. Translation: EAX02654.1. |
| IPI | IPI00027382. IPI00410084. |
| RefSeq | NP_001121638.1. NP_001121639.1. NP_001121640.1. NP_001121644.1. NP_001121645.1. NP_002569.1. |
| UniGene | Hs.656789 |
3D structure databases | |
| SMR | O75914. Positions 73-156, 262-553. |
| ModBase | Search... |
Protein-protein interaction databases | |
| STRING | O75914. |
PTM databases | |
| PhosphoSite | O75914. |
Proteomic databases | |
| PRIDE | O75914. |
Genome annotation databases | |
| Ensembl | ENST00000262836; ENSP00000262836; ENSG00000077264; Homo sapiens. [Genome view] ENST00000372010; ENSP00000361080; ENSG00000077264; Homo sapiens. [Genome view] |
| GeneID | 5063. |
| KEGG | hsa:5063. |
| UCSC | uc004eoz.2. human. uc004epa.2. human. |
Organism-specific databases | |
| CTD | 5063. |
| GeneCards | GC0XP110226. |
| H-InvDB | HIX0016993. |
| HGNC | HGNC:8592. PAK3. |
| MIM | 300142. gene. 300558. phenotype. |
| Orphanet | 101685. Rare intellectual deficit without developmental anomaly. |
| PharmGKB | PA32919. |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | prNOG07467. |
| HOVERGEN | O75914. |
| OrthoDB | EOG9N8TQ5. |
| PhylomeDB | O75914. |
Enzyme and pathway databases | |
| BRENDA | 2.7.11.1. 247. |
| Pathway_Interaction_DB | p38alphabetapathway. Regulation of p38-alpha and p38-beta. |
| Reactome | REACT_18266. Axon guidance. |
Gene expression databases | |
| ArrayExpress | O75914. |
| Bgee | O75914. |
| Genevestigator | O75914. |
| GermOnline | ENSG00000077264. Homo sapiens. |
Family and domain databases | |
| InterPro | IPR011009. Kinase-like_dom. IPR000095. PAK_box_Rho_bd. IPR000719. Prot_kinase_cat_dom. IPR017441. Protein_kinase_ATP_BS. IPR017442. Se/Thr_prot_kinase-like_dom. IPR015750. Ser/Thr_kinase_Pak-rel. IPR008271. Ser/Thr_prot_kinase_AS. IPR002290. Ser/Thr_prot_kinase_dom. [Graphical view] |
| PANTHER | PTHR22986:SF84. Pak_like. 1 hit. |
| Pfam | PF00786. PBD. 1 hit. PF00069. Pkinase. 1 hit. [Graphical view] |
| SMART | SM00285. PBD. 1 hit. SM00220. S_TKc. 1 hit. [Graphical view] |
| PROSITE | PS50108. CRIB. 1 hit. PS00107. PROTEIN_KINASE_ATP. 1 hit. PS50011. PROTEIN_KINASE_DOM. 1 hit. PS00108. PROTEIN_KINASE_ST. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other Resources | |
| NextBio | 19502. |
| SOURCE | Search... |
Entry information
| Entry name | PAK3_HUMAN | ||||||||
| Accession | Primary (citable) accession number: O75914 Secondary accession number(s): A8K389 Q9P0J8 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | HPI (Human Proteome Initiative) | ||||||||
| 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 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 |
| Human and mouse protein kinases Human and mouse protein kinases: classification and index |
| SIMILARITY comments Index of protein domains and families |

Clusters with


