Q96IF1 (AJUBA_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 101.
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: LIM domain-containing protein ajuba | ||||
| Gene names |
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| 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 | 538 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Adapter or scaffold protein which participates in the assembly of numerous protein complexes and is involved in several cellular processes such as cell fate determination, cytoskeletal organization, repression of gene transcription, mitosis, cell-cell adhesion, cell differentiation, proliferation and migration. Contributes to the linking and/or strengthening of epithelia cell-cell junctions in part by linking adhesive receptors to the actin cytoskeleton. May be involved in signal transduction from cell adhesion sites to the nucleus. Plays an important role in regulation of the kinase activity of AURKA for mitotic commitment. Also a component of the IL-1 signaling pathway modulating IL-1-induced NFKB1 activation by influencing the assembly and activity of the PRKCZ-SQSTM1-TRAF6 multiprotein signaling complex. Functions as an HDAC-dependent corepressor for a subset of GFI1 target genes. Acts as a transcriptional corepressor for SNAI1 and SNAI2/SLUG-dependent repression of E-cadherin transcription. Acts as a hypoxic regulator by bridging an association between the prolyl hydroxylases and VHL enabling efficient degradation of HIF1A. Positively regulates microRNA (miRNA)-mediated gene silencing. Negatively regulates the Hippo signaling pathway and antagonizes phosphorylation of YAP1. Ref.1 Ref.6 Ref.7 Ref.9 Ref.10 Ref.12 Ref.15 Ref.16 Ref.19 |
| Subunit structure | Interacts with GRB2, PIP5K1B and SLC1A2 By similarity. Interacts with AURKA; the interaction occurs during mitosis and both proteins are phosphorylated as they form a complex. Interacts with CTNNA1 and with F-actin. Interacts with LATS2; the interaction occurs during mitosis and the complex regulates organization of the spindle apparatus through recruitment of TUBG to the centrosome. Forms a complex with SQSTM1, PRKCZ and TRAF6. Component of the GFI1-AJUBA-HDAC1 repressor complex. Interacts directly (via the LIM domains) with GFI1; the interaction results in the HDAC-dependent corepression of a subset of GFI1 target genes, and is independent of the GFI1 SNAG domain. Interacts with HDAC1, HDAC2 and HDAC3. Interacts with SNAI2/SLUG (via SNAG domain) and SCRT1 (via SNAG domain) By similarity. Interacts with EIF4E, EIF2C1, EIF2C2, DCP2, DDX6, LATS1, LATS2, SAV1, EGLN2/PHD1 and EGLN3/PHD3. Interacts (via LIM domains) with isoform 1 and isoform 3 of VHL. Interacts (via LIM domains) with SNAI1 (via SNAG domain). Ref.1 Ref.6 Ref.7 Ref.9 Ref.10 Ref.11 Ref.12 Ref.15 Ref.16 Ref.19 |
| Subcellular location | Cytoplasm › cytoskeleton. Cell membrane. Cell junction. Nucleus. Cytoplasm › cytoskeleton › centrosome. Cytoplasm › P-body. Note: Shuttles between the cytoplasm and the nucleus. Localizes on centrosomes during G2-M phase. Preferentially co-localizes with cadherin-adhesive complexes at sites of cell-cell contacts. Colocalizes with GFI1 in the nucleus. Ref.1 Ref.6 Ref.9 Ref.10 Ref.12 Ref.16 |
| Domain | LIM region interacts with CTNNA1. The preLIM region binds directly actin filaments. Ref.10 LIM-2 and LIM-3 domains mediate the interaction with the N-terminal region of AURKA. The association between LATS2 and AJUBA required the second LIM domain of AJUBA. Ref.10 |
| Post-translational modification | Phosphorylated by LATS2 during mitosis. Phosphorylated by AURKA. |
| Miscellaneous | 'Ajuba' means 'curiosity' in Urdu, an Indian dialect. |
| Sequence similarities | Belongs to the zyxin/ajuba family. Contains 3 LIM zinc-binding domains. |
Ontologies
Alternative products
| This entry describes 2 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q96IF1-1) 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: Q96IF1-2) The sequence of this isoform differs from the canonical sequence as follows: 1-417: Missing. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 538 | 538 | LIM domain-containing protein ajuba | PRO_0000312625 | |||||
Regions | |||||||||
| Domain | 336 – 397 | 62 | LIM zinc-binding 1 | ||||||
| Domain | 401 – 461 | 61 | LIM zinc-binding 2 | ||||||
| Domain | 462 – 530 | 69 | LIM zinc-binding 3 | ||||||
| Region | 1 – 335 | 335 | PreLIM | ||||||
| Motif | 280 – 288 | 9 | Nuclear localization signal Potential | ||||||
Amino acid modifications | |||||||||
| Modified residue | 79 | 1 | Phosphoserine Ref.18 | ||||||
| Modified residue | 119 | 1 | Phosphoserine Ref.13 Ref.14 Ref.17 Ref.18 | ||||||
| Modified residue | 175 | 1 | Phosphoserine Ref.17 | ||||||
Natural variations | |||||||||
| Alternative sequence | 1 – 417 | 417 | Missing in isoform 2. | VSP_044227 | |||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Aurora-A and an interacting activator, the LIM protein Ajuba, are required for mitotic commitment in human cells." Hirota T., Kunitoku N., Sasayama T., Marumoto T., Zhang D., Nitta M., Hatakeyama K., Saya H. Cell 114:585-598(2003) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), FUNCTION, SUBCELLULAR LOCATION, INTERACTION WITH AURKA. |
| [2] | "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). Tissue: Liver. |
| [3] | "The DNA sequence and analysis of human chromosome 14." Heilig R., Eckenberg R., Petit J.-L., Fonknechten N., Da Silva C., Cattolico L., Levy M., Barbe V., De Berardinis V., Ureta-Vidal A., Pelletier E., Vico V., Anthouard V., Rowen L., Madan A., Qin S., Sun H., Du H. Weissenbach J.Nature 421:601-607(2003) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [4] | Mural R.J., Istrail S., Sutton G.G., Florea L., Halpern A.L., Mobarry C.M., Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., Turner R. Venter J.C.Submitted (SEP-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [5] | "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: Placenta and Testis. |
| [6] | "The LIM protein Ajuba is recruited to cadherin-dependent cell junctions through an association with alpha-catenin." Marie H., Pratt S.J., Betson M., Epple H., Kittler J.T., Meek L., Moss S.J., Troyanovsky S., Attwell D., Longmore G.D., Braga V.M. J. Biol. Chem. 278:1220-1228(2003) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, SUBCELLULAR LOCATION, INTERACTION WITH CTNNA1 AND F-ACTIN. |
| [7] | "The LIM protein Ajuba influences interleukin-1-induced NF-kappaB activation by affecting the assembly and activity of the protein kinase Czeta/p62/TRAF6 signaling complex." Feng Y., Longmore G.D. Mol. Cell. Biol. 25:4010-4022(2005) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, INTERACTION WITH TRAF6; PRKCZ AND SQSTM1. |
| [8] | "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: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. Tissue: Cervix carcinoma. |
| [9] | "LATS2-Ajuba complex regulates gamma-tubulin recruitment to centrosomes and spindle organization during mitosis." Abe Y., Ohsugi M., Haraguchi K., Fujimoto J., Yamamoto T. FEBS Lett. 580:782-788(2006) [PubMed] [Europe PMC] [Abstract] Cited for: SUBCELLULAR LOCATION, FUNCTION, INTERACTION WITH LATS2. |
| [10] | "The Ajuba LIM domain protein is a corepressor for SNAG domain mediated repression and participates in nucleocytoplasmic Shuttling." Ayyanathan K., Peng H., Hou Z., Fredericks W.J., Goyal R.K., Langer E.M., Longmore G.D., Rauscher F.J. III Cancer Res. 67:9097-9106(2007) [PubMed] [Europe PMC] [Abstract] Cited for: SUBCELLULAR LOCATION, FUNCTION, INTERACTION WITH SNAG-DOMAIN. |
| [11] | "Ajuba LIM proteins are snail/slug corepressors required for neural crest development in Xenopus." Langer E.M., Feng Y., Zhaoyuan H., Rauscher F.J. III, Kroll K.L., Longmore G.D. Dev. Cell 14:424-436(2008) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH SNAI1. |
| [12] | "Ajuba functions as a histone deacetylase-dependent co-repressor for autoregulation of the growth factor-independent-1 transcription factor." Montoya-Durango D.E., Velu C.S., Kazanjian A., Rojas M.E., Jay C.M., Longmore G.D., Grimes H.L. J. Biol. Chem. 283:32056-32065(2008) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION WITH IN THE GFI1-AJUBA-HDAC1 COMPLEX, INTERACTION WITH GFI1; HDAC1; HDAC2 AND HDAC3, SUBCELLULAR LOCATION, FUNCTION. |
| [13] | "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-119, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [14] | "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-119, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [15] | "Ajuba LIM proteins are negative regulators of the Hippo signaling pathway." Das Thakur M., Feng Y., Jagannathan R., Seppa M.J., Skeath J.B., Longmore G.D. Curr. Biol. 20:657-662(2010) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, INTERACTION WITH LATS1; LATS2 AND SAV1. |
| [16] | "LIM-domain proteins, LIMD1, Ajuba, and WTIP are required for microRNA-mediated gene silencing." James V., Zhang Y., Foxler D.E., de Moor C.H., Kong Y.W., Webb T.M., Self T.J., Feng Y., Lagos D., Chu C.Y., Rana T.M., Morley S.J., Longmore G.D., Bushell M., Sharp T.V. Proc. Natl. Acad. Sci. U.S.A. 107:12499-12504(2010) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, SUBCELLULAR LOCATION, INTERACTION WITH EIF4E; EIF2C1; EIF2C2; DCP2 AND DDX6. |
| [17] | "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-119 AND SER-175, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [18] | "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 SER-79 AND SER-119, MASS SPECTROMETRY. |
| [19] | "The LIMD1 protein bridges an association between the prolyl hydroxylases and VHL to repress HIF-1 activity." Foxler D.E., Bridge K.S., James V., Webb T.M., Mee M., Wong S.C., Feng Y., Constantin-Teodosiu D., Petursdottir T.E., Bjornsson J., Ingvarsson S., Ratcliffe P.J., Longmore G.D., Sharp T.V. Nat. Cell Biol. 14:201-208(2012) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, INTERACTION WITH EGLN1/PHD2; EGLN3/PHD3 AND VHL. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AY169959 mRNA. Translation: AAO37641.1. AK096128 mRNA. Translation: BAG53217.1. AL132780 Genomic DNA. No translation available. CH471078 Genomic DNA. Translation: EAW66204.1. CH471078 Genomic DNA. Translation: EAW66205.1. BC007580 mRNA. Translation: AAH07580.1. BC034968 mRNA. Translation: AAH34968.1. |
| IPI | IPI00063605. |
| RefSeq | NP_116265.1. NM_032876.4. NP_932352.1. NM_198086.1. |
| UniGene | Hs.655832. |
3D structure databases | |
| HSSP | HSSP built from PDB template 1QLI based on UniProtKB Q05158. |
| ProteinModelPortal | Q96IF1. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | Q96IF1. 1 interaction. |
| MINT | MINT-1772035. |
| STRING | 9606.ENSP00000262713. |
PTM databases | |
| PhosphoSite | Q96IF1. |
Polymorphism databases | |
| DMDM | 74751933. |
Proteomic databases | |
| PaxDb | Q96IF1. |
| PRIDE | Q96IF1. |
Protocols and materials databases | |
| DNASU | 84962. |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000262713; ENSP00000262713; ENSG00000129474. ENST00000361265; ENSP00000354491; ENSG00000129474. ENST00000397388; ENSP00000380543; ENSG00000129474. |
| GeneID | 84962. |
| KEGG | hsa:84962. |
| UCSC | uc001whz.3. human. |
Organism-specific databases | |
| CTD | 84962. |
| GeneCards | GC14M023441. |
| HGNC | HGNC:20250. AJUBA. |
| HPA | HPA006171. |
| MIM | 609066. gene. |
| neXtProt | NX_Q96IF1. |
| PharmGKB | PA134978308. |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | NOG331290. |
| HOGENOM | HOG000113139. |
| HOVERGEN | HBG095660. |
| InParanoid | Q96IF1. |
| KO | K16682. |
| OMA | YEGSFPG. |
| OrthoDB | EOG4GMTX9. |
| PhylomeDB | Q96IF1. |
Enzyme and pathway databases | |
| Pathway_Interaction_DB | aurora_a_pathway. Aurora A signaling. |
Gene expression databases | |
| ArrayExpress | Q96IF1. |
| Bgee | Q96IF1. |
| CleanEx | HS_JUB. |
| Genevestigator | Q96IF1. |
Family and domain databases | |
| Gene3D | 2.10.110.10. 3 hits. |
| InterPro | IPR001781. Znf_LIM. [Graphical view] |
| Pfam | PF00412. LIM. 3 hits. [Graphical view] |
| SMART | SM00132. LIM. 3 hits. [Graphical view] |
| PROSITE | PS00478. LIM_DOMAIN_1. 2 hits. PS50023. LIM_DOMAIN_2. 3 hits. [Graphical view] |
| ProtoNet | Search... |
Other | |
| ChiTaRS | AJUBA. human. |
| GenomeRNAi | 84962. |
| NextBio | 75479. |
| SOURCE | Search... |
Entry information
| Entry name | AJUBA_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q96IF1 Secondary accession number(s): A8MX18, D3DS37 | ||||||||
| 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
| Human chromosome 14 Human chromosome 14: entries, gene names and cross-references to MIM |
| 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
