Protein : MDM2

Connectivity 576
Notes This gene is a target gene of the transcription factor tumor protein p53. The encoded protein is a nuclear phosphoprotein that binds and inhibits transactivation by tumor protein p53, as part of an autoregulatory negative feedback loop. Overexpression of this gene can result in excessive inactivation of tumor protein p53, diminishing its tumor suppressor function. This protein has E3 ubiquitin ligase activity, which targets tumor protein p53 for proteasomal degradation. This protein also affects the cell cycle, apoptosis, and tumorigenesis through interactions with other proteins, including retinoblastoma 1 and ribosomal protein L5. More than 40 different alternatively spliced transcript variants have been isolated from both tumor and normal tissues.
Hugo ID 6973
Name MDM2
Description transformed mouse 3T3 cell double minute 2
URN urn:agi-llid:4193

GO Cellular Component cytoplasm
nucleolus
nucleus
ubiquitin ligase complex
nucleoplasm

Cell Localization Nucleus

GO Biological Process cell growth and/or maintenance
protein catabolism
protein ubiquitination
traversing start control point of mitotic cell cycle
negative regulation of cell proliferation
negative regulation of transcription from Pol II promoter
protein complex assembly
regulation of cell cycle
regulation of protein catabolism

EC Number 6.3.2.-

State mouse double minute 2 homolog isoform MDM2
mouse double minute 2 homolog isoform MDM2a
mouse double minute 2 homolog isoform MDM2b
mouse double minute 2 homolog isoform MDM2c
mouse double minute 2 homolog isoform MDM2d
mouse double minute 2 homolog isoform MDM2e

State Description Transcript Variant: This variant (MDM2) is expressed in colon and muscle. It represents the longest transcript and encodes the longest isoform (MDM2), that contains a p53 binding domain, a nuclear localization signal, a zinc coordinating RNA binding do...
Transcript Variant: This variant (MDM2a) is expressed in lympocytes. It lacks three exons and a segment in the 3' coding region, as compared to variant MDM2. The resulting isoform MDM2a, also known as isoform KB9, lacks a nuclear localization signal an...
Transcript Variant: This variant (MDM2b) is expressed in lung. It lacks multiple exons and two segments in the 3' coding region, as compared to variant MDM2. The resulting isoform MDM2b, also known as isoform L1_15, lacks a nuclear localization signal,...
Transcript Variant: This variant (MDM2c) is expressed in intestine. It has an additional exon in the 5' coding region and lacks multiple exons and a segment in the 3' region, as compared to variant MDM2. The additional exon introduces a stop codon and ...
Transcript Variant: This variant (MDM2d) is expressed in lymphocyte. It lacks several exons and two segments in the 3' coding region, as compared to variant MDM2. The resulting isoform MDM2d, also known as isoform HB67, lacks a nuclear localization sig...
Transcript Variant: This variant (MDM2e) is expressed in kidney. It lacks multiple exons and a segment in the 3' coding region, as compared to variant MDM2. The resulting isoform MDM2e, also known as isoform N1_40, lacks a nuclear localization signal a...

MGI ID 96952

Swiss-Prot Accession Q00987

OMIM ID OMIM:164785

Alias Mdm2
mouse double minute 2
Mdm-2
transformed mouse 3T3 cell double minute 2
GNB:6754672
p53 binding protein MDM2
MDM2_MOUSE
Ubiquitin-protein ligase E3 Mdm2
1700007J15Rik
hdm2
Mdm2, transformed 3T3 cell double minute 2, p53 binding protein (mouse)
p53-binding protein MDM2
mouse double minute 2, human homolog of; p53-binding protein
PIR:S24354
MGC71221
double minute 2 homolog full length protein isoform
double minute 2 homolog isoform MDM2a
double minute 2 homolog isoform MDM2b
double minute 2 homolog isoform MDM2c
double minute 2 homolog isoform MDM2d
double minute 2 homolog isoform MDM2e
Double minute 2 protein
mouse double minute II
Oncoprotein Mdm2
transformed mouse 3T3 cell double minute II
mouse double minute 2 homolog MDM2a
mouse double minute 2 homolog MDM2b
mouse double minute 2 homolog MDM2c
mouse double minute 2 homolog MDM2d
mouse double minute 2 homolog MDM2e
mouse double minute 2 homolog full length

Organism Rattus norvegicus
Mus musculus
Human

LocusLink ID 246362
17246
69330
103091
4193

RGD ID 70489

Pathway p53 Signaling
ATM signaling
moduleb_direct interactions
moduleb_shortest paths
moduleb_commontarget-complex
moduleb_commontargets-functionalclass
moduleb_commontarget_cell processes
moduleb_proteins
moduled_direct interactions
moduled_shortest paths
moduled_proteins
moduled_complex
moduled_functional class
moduled_cell process

Unigene ID Mm.22670
Hs.212217

Group protein binding
metal ion binding
moduleb
moduled