Molecular Target Synopsis
Domains and Structures
Drugs and Clinical Candidates
Ligand Efficiency Plot
Family Cladogram
Interaction Network
Gene Expression
Gene Copy Number Variation
Germline Genetics

AIMP2 (Q13155) - Overview - Molecular Target Synopsis


AIMP2, Aminoacyl tRNA synthase complex-interacting multifunctional protein 2
UniProt Q13155

Also Known as AIMP2_HUMAN, AIMP2, JTV1

Required for assembly and stability of the aminoacyl-tRNA synthase complex (PubMed:19131329). Mediates ubiquitination and degradation of FUBP1, a transcriptional activator of MYC, leading to MYC down-regulation which is required for aveolar type II cell differentiation. Blocks MDM2-mediated ubiquitination and degradation of p53/TP53. Functions as a proapoptotic factor. Part of the multisynthetase complex (MSC), a multisubunit complex that groups tRNA ligases for Arg (RARS), Asp (DARS), Gln (QARS), Ile (IARS), Leu (LARS), Lys (KARS), Met (MARS) the bifunctional ligase for Glu and Pro (EPRS) and the auxiliary subunits AIMP1/p43, AIMP2/p38 and EEF1E1/p18 (PubMed:24312579, PubMed:19131329, PubMed:19289464). Interacts (via N-terminus) with KARS (PubMed:9878398, PubMed:15220430, PubMed:18029264, PubMed:23159739, PubMed:26074468). Interacts with EPRS (PubMed:26472928). Forms a linear complex that contains MARS, EEF1E1, EPRS and AIMP2 that is at the core of the multisubunit complex (PubMed:26472928). Binds FUBP1 (via C-terminus). Interacts in both its unphosphorylated and phosphorylated forms with p53/TP53 (via N-terminus) in the nucleus following UV irradiation. Interacts (via N-terminus) with PRKN/parkin (via first RING-type domain) (PubMed:16135753). Interacts with TARSL2 (PubMed:24312579).

Inspect Structure
See all 3D Structures for AIMP2

Isoforms / Transcripts (Protein Coding)

Sub-cellular localization

UniProt: AIMP2 is active in the following subcellular-locations: cytoplasm, cytosol, nucleus.
GO terms: AIMP2 is active in the following subcellular-locations: aminoacyl-tRNA synthetase multienzyme complex, cytosol, membrane, nucleus.

GO terms

Gene Copy Number Variation

In COSMIC - Cell Lines Project AIMP2 has gain in 5 cell-lines, loss in 1 cell-lines and no signal in 998 cell-lines. (see details)

Gene Expression

In NCI60, the highest expressing cell lines are:

In Array Express (RNA-seq of 675 commonly used human cancer cell lines), the highest expressing cell lines are: BICR 31, HGC-27, TYK-nu.CP-r

In Array Express (RNA-seq of long poly adenylated RNA and long non poly adenylated RNA from ENCODE cell lines), the highest expressing cell lines are: SK-N-SH, HeLa-S3, A549

(see details)

3D Structures

For AIMP2 there are:
8 structures (20 chains) solved
0 are solved in complex with at least one small molecule ligand

(see details)
Molecular Target 3D Synopsis