Recombinant Anti-Ki67 antibody [BLR021E] - BSA free (ab272075)
Key features and details
- Produced recombinantly (animal-free) for high batch-to-batch consistency and long term security of supply
- Rabbit monoclonal [BLR021E] to Ki67 - BSA and Azide free
- Suitable for: WB, ICC, IHC-P, ICC/IF
- Reacts with: Human
Related conjugates and formulations
Overview
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Product name
Anti-Ki67 antibody [BLR021E] - BSA free
See all Ki67 primary antibodies -
Description
Rabbit monoclonal [BLR021E] to Ki67 - BSA and Azide free -
Host species
Rabbit -
Tested applications
Suitable for: WB, ICC, IHC-P, ICC/IFmore details -
Species reactivity
Reacts with: Human -
Immunogen
Synthetic peptide within Human Ki67 aa 1200-1250. The exact sequence is proprietary. Corresponds to the repetitive 66 bp element. NP_002408.2 and Gene ID 4288.
Database link: P46013 -
Positive control
- IHC-P: Human tonsil and ovarian carcinoma tissue. ICC: OVCAR-4 cells. ICC/IF: Acetone/methanol fixed Hela cells.
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General notes
ab272075 is the carrier-free version of ab243878.
Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. The carrier-free buffer and high concentration allow for increased conjugation efficiency.
This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.
Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with <1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.
This product is sold under License from Bethyl Laboratories, Inc.
Properties
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Form
Liquid -
Storage instructions
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term. Avoid freeze / thaw cycle. -
Storage buffer
pH: 8.20
Preservative: 0.09% Sodium azide
Constituent: 98% Borate buffered saline -
Carrier free
Yes -
Concentration information loading...
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Purification notes
Recombinant antibody was purified from cell culture supernatant. -
Clonality
Monoclonal -
Clone number
BLR021E -
Isotype
IgG -
Research areas
Associated products
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Alternative Versions
Applications
The Abpromise guarantee
Our Abpromise guarantee covers the use of ab272075 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Application | Abreviews | Notes |
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WB |
Use at an assay dependent concentration.
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ICC |
Use at an assay dependent concentration.
If fixing cells in 4% PFA (20 min, room temp), it is recommended to permeabilized cells with 0.1% Triton-X for 5 min. |
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IHC-P |
Use at an assay dependent concentration. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
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ICC/IF |
Use at an assay dependent concentration.
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Notes |
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WB
Use at an assay dependent concentration. |
ICC
Use at an assay dependent concentration. If fixing cells in 4% PFA (20 min, room temp), it is recommended to permeabilized cells with 0.1% Triton-X for 5 min. |
IHC-P
Use at an assay dependent concentration. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol. |
ICC/IF
Use at an assay dependent concentration. |
Target
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Function
Required to maintain individual mitotic chromosomes dispersed in the cytoplasm following nuclear envelope disassembly (PubMed:27362226). Associates with the surface of the mitotic chromosome, the perichromosomal layer, and covers a substantial fraction of the chromosome surface (PubMed:27362226). Prevents chromosomes from collapsing into a single chromatin mass by forming a steric and electrostatic charge barrier: the protein has a high net electrical charge and acts as a surfactant, dispersing chromosomes and enabling independent chromosome motility (PubMed:27362226). Binds DNA, with a preference for supercoiled DNA and AT-rich DNA (PubMed:10878551). Does not contribute to the internal structure of mitotic chromosomes (By similarity). May play a role in chromatin organization (PubMed:24867636). It is however unclear whether it plays a direct role in chromatin organization or whether it is an indirect consequence of its function in maintaining mitotic chromosomes dispersed. -
Sequence similarities
Contains 1 FHA domain.
Contains 16 K167R repeats.
Contains 1 PP1-binding domain. -
Developmental stage
Expression occurs preferentially during late G1, S, G2 and M phases of the cell cycle, while in cells in G0 phase the antigen cannot be detected (at protein level) (PubMed:6206131). Present at highest level in G2 phase and during mitosis (at protein level). In interphase, forms fiber-like structures in fibrillarin-deficient regions surrounding nucleoli (PubMed:2674163, PubMed:8799815). -
Post-translational
modificationsPhosphorylated. Hyperphosphorylated in mitosis (PubMed:10502411, PubMed:10653604). Hyperphosphorylated form does not bind DNA. -
Cellular localization
Chromosome. Nucleus. Nucleus, nucleolus. Associates with the surface of the mitotic chromosome, the perichromosomal layer, and covers a substantial fraction of the mitotic chromosome surface (PubMed:27362226). Associates with satellite DNA in G1 phase (PubMed:9510506). Binds tightly to chromatin in interphase, chromatin-binding decreases in mitosis when it associates with the surface of the condensed chromosomes (PubMed:15896774, PubMed:22002106). Predominantly localized in the G1 phase in the perinucleolar region, in the later phases it is also detected throughout the nuclear interior, being predominantly localized in the nuclear matrix (PubMed:22002106). - Information by UniProt
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Database links
- Entrez Gene: 4288 Human
- Omim: 176741 Human
- SwissProt: P46013 Human
- Unigene: 689823 Human
- Unigene: 80976 Human
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Alternative names
- Antigen identified by monoclonal antibody Ki 67 antibody
- Antigen identified by monoclonal antibody Ki-67 antibody
- Antigen KI-67 antibody
see all
Images
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This data was developed using the same antibody clone in a different buffer formulation containing Borate buffered saline, BSA, glycerol and sodium azide (ab243878).
Immunohistochemical analysis of formalin-fixed, paraffin-embedded human tonsil tissue, labeling Ki67 with ab243878. HRP-conjugated goat anti-rabbit IgG was used as a secondary antibody. Detection: DAB.
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This data was developed using the same antibody clone in a different buffer formulation containing Borate buffered saline, BSA, glycerol and sodium azide (ab243878).
Immunocytochemical analysis of formalin-fixed, paraffin-embedded OVCAR-4 cells, labeling Ki67 with ab243878. HRP-conjugated goat anti-rabbit IgG was used as a secondary antibody. Detection: DAB.
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This data was developed using the same antibody clone in a different buffer formulation containing Borate buffered saline, BSA, glycerol and sodium azide (ab243878).
Immunocytochemical analysis of acetone/menthanol fixed HeLa cells, labeling Ki67 with ab243878 at a 1/100 dilution. HRP-conjugated goat anti-rabbit IgG was used as a secondary antibody. Counterstain: DAPI.
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This data was developed using the same antibody clone in a different buffer formulation containing Borate buffered saline, BSA, glycerol and sodium azide (ab243878).
Immunohistochemical analysis of formalin-fixed, paraffin-embedded human ovarian carcinoma tissue, labeling Ki67 with ab243878 at a 1/500 dilution. HRP-conjugated goat anti-rabbit IgG was used as a secondary antibody. Substrate: Opal™. Counterstain: DAPI (blue).
Protocols
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
Datasheets and documents
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SDS download
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Datasheet download
References (1)
ab272075 has been referenced in 1 publication.
- Chen KL et al. The protective effect of rosmarinic acid on myotube formation during myoblast differentiation under heat stress. In Vitro Cell Dev Biol Anim 56:635-641 (2020). PubMed: 32901428