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Key Specifications Table
| Species Reactivity | Key Applications | Host | Format | Antibody Type |
|---|---|---|---|---|
| H | WB, IHC | M | Purified | Monoclonal Antibody |
| Description | |
|---|---|
| Catalogue Number | MAB4133 |
| Replaces | 04-239 |
| Brand Family | Chemicon® |
| Trade Name |
|
| Description | Anti-p16 Antibody, clone D25 |
| Alternate Names |
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| Product Information | |
|---|---|
| Format | Purified |
| Control |
|
| Presentation | Liquid in phosphate buffer, containing azide as a preservative. |
| Quality Level | MQ100 |
| Applications | |
|---|---|
| Application | Anti-p16 Antibody, clone D25 is a Mouse Monoclonal Antibody for detection of p16 also known as INK4a, MTS1, CDK4IN, CDKN2 & has been validated in WB & IHC. |
| Key Applications |
|
| Application Notes | Immunoblotting Immunohistochemistry Optimal working dilutions must be determined by end user. |
| Biological Information | |
|---|---|
| Immunogen | Recombinant p16 fusion protein from E. coli. |
| Clone | D25 |
| Concentration | Please refer to the Certificate of Analysis for the lot-specific concentration. |
| Host | Mouse |
| Specificity | P16* is a major tumor suppressor gene, which is known to be deleted or mutated in many types of human cancers. Antibody MAB4133 binds specifically to p16 in its recombinant or native form. It also recognizes p16 expressed by melanomas and neve in situ. |
| Isotype | IgG1 |
| Species Reactivity |
|
| Antibody Type | Monoclonal Antibody |
| Entrez Gene Number |
|
| Entrez Gene Summary | This gene generates several transcript variants which differ in their first exons. At least three alternatively spliced variants encoding distinct proteins have been reported, two of which encode structurally related isoforms known to function as inhibitors of CDK4 kinase. The remaining transcript includes an alternate first exon located 20 Kb upstream of the remainder of the gene; this transcript contains an alternate open reading frame (ARF) that specifies a protein which is structurally unrelated to the products of the other variants. This ARF product functions as a stabilizer of the tumor suppressor protein p53 as it can interact with, and sequester, MDM1, a protein responsible for the degradation of p53. In spite of the structural and functional differences, the CDK inhibitor isoforms and the ARF product encoded by this gene, through the regulatory roles of CDK4 and p53 in cell cycle G1 progression, share a common functionality in cell cycle G1 control. This gene is frequently mutated or deleted in a wide variety of tumors, and is known to be an important tumor suppressor gene. |
| Gene Symbol |
|
| UniProt Number |
|
| UniProt Summary | FUNCTION: SwissProt: Q8N726 # Capable of inducing cell cycle arrest in G1 and G2 phases. Acts as a tumor suppressor. Binds to MDM2 and blocks its nucleocytoplasmic shuttling by sequestering it in the nucleolus. This inhibits the oncogenic action of MDM2 by blocking MDM2- induced degradation of p53 and enhancing p53-dependent transactivation and apoptosis. Also induces G2 arrest and apoptosis in a p53-independent manner by preventing the activation of cyclin B1/CDC2 complexes. Binds to BCL6 and down-regulates BCL6-induced transcriptional repression. Binds to E2F1 and MYC and blocks their transcriptional activator activity but has no effect on MYC transcriptional repression. Binds to TOP1/TOPOI and stimulates its activity. This complex binds to rRNA gene promoters and may play a role in rRNA transcription and/or maturation. Interacts with NPM1/B23 and promotes its polyubiquitination and degradation, thus inhibiting rRNA processing. Interacts with UBE2I/UBC9 and enhances sumoylation of a number of its binding partners including MDM2 and E2F1. Binds to HUWE1 and represses its ubiquitin ligase activity. May play a role in controlling cell proliferation and apoptosis during mammary gland development.| P42771 # Acts as a negative regulator of the proliferation of normal cells by interacting strongly with CDK4 and CDK6. This inhibits their ability to interact with cyclins D and to phosphorylate the retinoblastoma protein. SIZE: 173 amino acids; 18006 Da SUBUNIT: Does not interact with cyclins, CDC2, CDK2, CDK4, CDK5 or CDK6. Binds to BCL6, E2F1, HUWE1, MDM2, MYC, NPM1/B23, TOP1/TOPOI and UBE2I/UBC9. Interacts with TBRG1. SUBCELLULAR LOCATION: Nucleus, nucleolus (By similarity). DISEASE: SwissProt: P42771 # Defects in CDKN2A are involved in tumor formation in a wide range of tissues. & Defects in CDKN2A are the cause of cutaneous malignant melanoma 2 (CMM2) [MIM:155601]. Inheritance is autosomal dominant. Malignant melanoma is a malignant neoplasm of melanocytes, arising de novo or from a preexisting benign nevus, which occurs most often in the skin but also may involve other sites. & Defects in CDKN2A are the cause of familial atypical multiple mole melanoma-pancreatic carcinoma syndrome (FAMMMPC) [MIM:606719]. & Defects in CDKN2A are a cause of Li-Fraumeni syndrome (LFS) [MIM:151623]. LFS is a highly penetrant familial cancer phenotype usually associated with inherited mutations in TP53. & Defects in CDKN2A are the cause of melanoma-astrocytoma syndrome [MIM:155755]. The melanoma-astrocytoma syndrome is characterized by a dual predisposition to melanoma and neural system tumors, commonly astrocytoma. SIMILARITY: SwissProt: P42771 ## Belongs to the CDKN2 cyclin-dependent kinase inhibitor family. & Contains 4 ANK repeats. |
| Product Usage Statements | |
|---|---|
| Usage Statement |
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| Storage and Shipping Information | |
|---|---|
| Storage Conditions | Maintain refrigerated at 2-8°C in undiluted aliquots for up to 12 months. |
| Packaging Information | |
|---|---|
| Material Size | 100 µg |