MDM2 CISH Probe
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Specification
Product Description
MDM2 CISH Probe is designed for the qualitative detection of human MDM2 gene in formalin-fixed, paraffin-embedded specimens by chromogenic in situ hybridization (CISH).
Reactivity
Human
Recommend Usage
The product is ready-to-use. No reconstitution, mixing, or dilution is required. Bring probe to room temperature (18-25°C) and mix briefly before use.
Supplied Product
Reagent Provided:
1. Digoxigenin-labeled polynucleotides targeting sequences mapping in 12q15* (chr12:69,190,708-69,430,185) harboring the MDM2 gene
2. Formamide based hybridization buffer
*according to Human Genome Assembly GRCh37/hg19Probe Position
Regulatory Status
For research use only (RUO)
Storage Instruction
Store at 2-8°C in an upright position. Return to storage conditions immediately after use.
Note
The probe is intended to be used in combination with the CISH Implementation Kit 1 (Catalog #: KA5365), which provides necessary reagents for specimen pretreatment and post-hybridization processing.
Hybridization signals of digoxigenin-labeled polynucleotides appear as brown- to dark brown colored distinct dots (MDM2 gene region).
Normal situation: In interphases of normal cells or cells without an amplification involving the MDM2 gene locus, two distinct dot-shaped brown signals per nucleus appear.
Aberrant situation: In a cell with amplification of the MDM2 gene locus or polysomy of chromosome 12, multiple copies of the brown signal or brown signal clusters will be observed. Other signal distribution may be observed in some abnormal samples which might result in a different signal pattern than described above, indicating variant rearrangements.
Unexpected signal patterns should be further investigated.Interpretation of Result
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Applications
Chromogenic In Situ Hybridization (FFPE Tissue)
Normal nuclei each with two MDM2 signals. -
Gene Info — MDM2
Entrez GeneID
4193Gene Name
MDM2
Gene Alias
HDMX, MGC71221, hdm2
Gene Description
Mdm2 p53 binding protein homolog (mouse)
Omim ID
164785Gene Ontology
HyperlinkGene Summary
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. [provided by RefSeq
Other Designations
Mdm2, transformed 3T3 cell double minute 2, p53 binding protein|double minute 2, human homolog of; p53-binding protein|mouse double minute 2 homolog|p53-binding protein MDM2|ubiquitin-protein ligase E3 Mdm2
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