p57 Antibody / p57Kip2

• Catalog Number: orb1826106
• Category: Antibodies
• Description: Recognizes a protein of 57kDa, identified as p57Kip2. It shows no cross-reaction with p27Kip1. p57Kip2 is a potent tight-binding inhibitor of several G1 cyclin complexes, and is a negative regulator of cell proliferation. Anti-p57 has been used as an aide in identification of complete hydatidiform mole (CHM) (no nuclear labeling of cytotrophoblasts and stromal cells) from partial hydatidiform mole (PHM) in which both cytotrophoblasts and stromal cells stain. The histological differentiation of complete mole, partial mole, and hydropic spontaneous abortion is problematic. Most complete hydatidiform moles are diploid, whereas most partial moles are triploid. Ploidy studies will identify partial moles, but will not differentiate complete moles from non-molar gestations. Complete moles carry a high risk of persistent disease and choriocarcinoma, while partial moles have a very low risk. In normal placenta, many cytotrophoblast nuclei and stromal cells are labeled with this antibody. Similar findings apply to PHM and hydropic abortus tissues. Intervillous trophoblastic islands (IVTIs) demonstrate nuclear labeling in all three entities and serve as an internal control.
• Species/Host: Mouse
• Clonality: Monoclonal
• Clone Number: KIP2/8572
• Tested applications: IHC-P
• Reactivity: Human
• Isotype: Mouse IgG, kappa
• Immunogen: Recombinant full-length human p57Kip2 protein was used as the immunogen for the p57Kip2 antibody.
• Antibody Type: Primary Antibody
• Dilution range: Immunohistochemistry (FFPE): 1-2ug/ml
• Conjugation: Unconjugated
• Formula: 0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced), 0.05% sodium azide
• Hazard Information: This p57Kip2 antibody is available for research use only.
• UniProt ID: P49918
• Storage: Aliquot the p57Kip2 antibody and store frozen at -20°C or colder. Avoid repeated freeze-thaw cycles.
• Note: For research use only
• Expiration Date: 12 months from date of receipt.

IHC staining of FFPE human colon. Strong nuclear staining using KIP2/8572 at 2 ug/ml. HIER: boil tissue sections in pH9 10 mM Tris with 1 mM EDTA for 20 min and allow to cool before testing.

IHC staining of FFPE human bladder tissue with p57Kip2 antibody. Strong nuclear staining using KIP2/8572 mAb at 2 ug/ml. HIER: boil tissue sections in pH9 10 mM Tris with 1 mM EDTA for 20 min and allow to cool before testing.

SDS-PAGE analysis of purified, BSA-free p57 antibody (clone KIP2/8572) as confirmation of integrity and purity.