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Key Specifications Table
| Species Reactivity | Key Applications | Host | Format | Antibody Type |
|---|---|---|---|---|
| H, M | ELISA, ICC, IHC, IP, WB | M | Ascites | Monoclonal Antibody |
| Description | |
|---|---|
| Catalogue Number | MAB3448 |
| Brand Family | Chemicon® |
| Trade Name |
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| Description | Anti-Heterochromatin Protein-1 β Antibody, clone 1MOD-1A9 |
| Alternate Names |
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| Background Information | Chromatin assembly factor-1 (CAF-1) is a multisubunit protein complex that comprises three polypeptide subunits known as p150, p60, and p48. CAF-1 is a nucleosome assembly factor that deposits newly synthesized and acetylated histones H3/H4 into nascent chromatin during DNA replication. Heterochromatin is characterized as densely coiled chromatin that generally replicates late during S phase, has a low gene density, and contains large blocks of repetitive DNA that is relatively inaccessible to DNA-modifying reagents. In late S phase, p150 directly associates with heterochromatin associated proteins 1 (HP1α, HP1β and HP1γ). As cells prepare for mitosis, CAF-1 p150 and some HP1 progressively dissociate from heterochromatin, coinciding with the phosphorylation of histone H3. The HP1 proteins reassociate with chromatin at the end of mitosis, as histone H3 is dephosphorylated. |
| Product Information | |
|---|---|
| Format | Ascites |
| Control |
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| Presentation | Liquid. Contains no preservative. |
| Quality Level | MQ100 |
| Applications | |
|---|---|
| Application | Use Anti-Heterochromatin Protein-1 β Antibody, clone 1MOD-1A9 (Mouse Monoclonal Antibody) validated in ELISA, ICC, IHC, IP, WB to detect Heterochromatin Protein-1 β also known as HP1b. |
| Key Applications |
|
| Application Notes | Western blot: 1:500-1:5,000 Immunofluorescence: 1:500-1:5,000 Immunohistochemistry: 1:500-1:5,000 Immunoprecipitation: 1:500 - 1:5,000 ELISA: 1:500-1:5,000 Optimal working dilutions must be determined by the end user. |
| Biological Information | |
|---|---|
| Immunogen | Recombinant mouse HP1beta. |
| Clone | 1MOD-1A9 |
| Concentration | Please refer to the Certificate of Analysis for the lot-specific concentration. |
| Host | Mouse |
| Specificity | Reacts with Heterochromatin protein-1 b (HP1b). |
| Isotype | IgG1 |
| Species Reactivity |
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| Antibody Type | Monoclonal Antibody |
| Entrez Gene Number |
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| Entrez Gene Summary | Heterochromatin protein-1 (HP1) is a methyl-lysine binding protein localized at heterochromatin sites, where it mediates gene silencing.[supplied by OMIM] |
| Gene Symbol |
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| Purification Method | Unpurified |
| UniProt Number |
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| UniProt Summary | FUNCTION: SwissProt: P45973 # Component of heterochromatin. Recognizes and binds histone H3 tails methylated at Lys-9, leading to epigenetic repression. Can interact with lamin B receptor (LBR). This interaction can contribute to the association of the heterochromatin with the inner nuclear membrane. Involved in the formation of functional kinetochore through interaction with MIS12 complex proteins. SIZE: 191 amino acids; 22225 Da SUBUNIT: Interacts with SUV420H1 and SUV420H2 (By similarity). Interacts directly with ATRX, CHAF1A, LBR, NIPBL, SP100, STAM2 and TRIM28 via the chromoshadow domain. Can interact directly with CBX3 via the chromoshadow domain. Interacts with histone H3 methylated at Lys-9. Interacts with MIS12 and C20orf127. SUBCELLULAR LOCATION: Nucleus. Centromere. Note=Component of centromeric and pericentromeric heterochromatin. Associates with chromosomes during mitosis. Associates specifically with chromatin during metaphase and anaphase. PTM: Phosphorylation of HP1 and LBR may be responsible for some of the alterations in chromatin organization and nuclear structure which occur at various times during the cell cycle (By similarity). Phosphorylated during interphase and possibly hyper- phosphorylated during mitosis. SIMILARITY: SwissProt: P45973 ## Contains 2 chromo domains. |
| Molecular Weight | 28 kDa |
| Product Usage Statements | |
|---|---|
| Usage Statement |
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| Storage and Shipping Information | |
|---|---|
| Storage Conditions | Maintain for 1 year at -20°C from date of shipment. Aliquot to avoid repeated freezing and thawing. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. |
| Packaging Information | |
|---|---|
| Material Size | 100 µL |