Ki67 Antibody (YA322)
(Synonyms: Proliferation marker protein Ki-67, Antigen identified by monoclonal antibody Ki-67, Antigen KI-67, Antigen Ki67, MKI67)Based on 4 publication(s) in Google Scholar
Ki67 Antibody (YA322) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to Ki67.
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Host:
Rabbit
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Isotype:
IgG
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Application:
IHC-P, IHC-F, ICC/IF, FC, IF-Tissue, mIHC
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Reactivity :
Human, Mouse, Rat
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Formulation:
Supplied in 1*PBS (pH7.4), 0.05% BSA and 40% Glycerol. Preservative: 0.05% Sodium Azide
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Conjugation:
Non-conjugated
Publications Citing Use of MedChemExpress (MCE) Ki67 Antibody (YA322)
More
Applications
| Application |
IHC-P
IHC-P: Immunohistochemistry-Paraffin
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IHC-F
IHC-F: Immunohistochemistry-Frozen
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IF-Tissue
IF-Tissue: Immunofluorescence-Tissue
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mIHC
mIHC: Multiplex Immunohistochemical
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ICC/IF
ICC/IF: Immunocytochemistry/
Immunofluorescence |
FC
FC: Flow Cytometry
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|---|---|---|---|---|---|---|
| Dilution Ratio | 1:5000-1:15000 | 1:200 | 1:500 | 1:2000-1:3000 | 1:100-1:250 | 1:500-1:1000 |
Product Details
Ki67 Antibody (YA322) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to Ki67.
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Host Rabbit
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Clonality Recombinant,Monoclonal
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Species ReactivityHuman, Mouse, Rat
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Observed Molecular WeightObserved band size: 359 kDaNote: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.
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Calculated Molecular Weight Predicted band size: 359 kDa
Entrez Gene: 4288 Human ; 17345 Mouse ; 246042 Rat
SwissProt: P46013 Human ; E9PVX6 Mouse ; Q61769 Mouse ;
OMIM: 176741 Human
Synthetic peptide corresponding to Human Ki67.AA range:1040-1080.
Endogenous
Protein A affinity purified.
Non-conjugated
Unmodified
IgG
Product Properties
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Appearance
Solution
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Formulation
Supplied in 1*PBS (pH7.4), 0.05% BSA and 40% Glycerol. Preservative: 0.05% Sodium Azide
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Concentration
Batch-dependent, Please check the COA for the concentration of each lot. Check Lot Concentration
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Storage & Stability
Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.
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Shipping
Shipping with blue ice.
Publications (4)
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Journal Impact Factor
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Most Recent
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Small
The Core-Shell Microneedle with Probiotic Extracellular Vesicles for Infected Wound Healing and Microbial Homeostasis Restoration. [Abstract]2024 Nov;20(46):e2401551. PMID: 39109958 -
Free Radic Biol Med
Dihydroartemisinin targets GPX4 to induce autophagy-dependent ferroptosis and reduce radioresistance in triple-negative breast cancer. [Abstract]2026 Mar 16:246:35-50. PMID: 41520847 -
Hum Cell
Collagen alpha-5(IV) chain activation by nuclear factor 1/C promotes nasopharyngeal carcinoma progression. [Abstract]2025 Aug 20;38(5):148. PMID: 40833521
Verification Images
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Immunohistochemical analysis of paraffin-embedded human breast cancer tissue using Ki67 Antibody (YA322). The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P80506,1/2000) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with neutral balsam.
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Immunohistochemical analysis of paraffin-embedded human tonsil tissue using Ki67 Antibody (YA322). The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P80506,1/2000) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with neutral balsam.
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Immunohistochemical analysis of paraffin-embedded human spleen tissue using Ki67 Antibody (YA322). The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P80506,1/2000) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with neutral balsam.
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Immunohistochemical analysis of paraffin-embedded human colon cancer tissue using Ki67 Antibody (YA322). The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P80506,1/2000) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with neutral balsam.
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Immunohistochemical analysis of paraffin-embedded human lung adenocarcinoma tissue using Ki67 Antibody (YA322). The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P80506,1/2000) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with neutral balsam.
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Immunohistochemical analysis of paraffin-embedded human colon cancer tissue using Ki67 Antibody (YA322). The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P80506,1/15000) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with neutral balsam.
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Flow cytometric analysis of 1X106 HeLa cells labeling Ki67 Antibody (HY-P80506, red). Cells were fixed with 4% paraformaldehyde and permeabilised with 90% methanol. Then stained with the primary antibody at 1/1000 dilution for an hour at 4℃. AF488-conjugated Goat Anti-Rabbit IgG H&L (HY-P8002) was used as the secondary antibody at 1/1,000 dilution for 30 minutes at 4℃. Rabbit IgG Isotype Control (HY-P80879, blue) was used as the isotype control, cells without incubation with primary antibody were used as the unlabeled control (black).
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Immunocytochemistry analysis of Hela cells labeling Ki67 with Ki67 Antibody (HY-P80506) at 1/100 dilution . Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 15 minutes at room temperature, then blocked with quick block buffer for 10 minutes at room temperature. Cells were then incubated with Ki67 Antibody (HY-P80506) at 1/100 dilution in quick block buffer overnight at 4 ℃. AF488-conjugated Goat Anti-Rabbit IgG H&L(HY-P8002, Green) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. The Nuclear counterstain was DAPI (Blue).
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Immunocytochemistry analysis of Hela cells labeling Ki67 with Ki67 Antibody (HY-P80506) at 1/200 dilution . Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 15 minutes at room temperature, then blocked with quick block buffer for 10 minutes at room temperature. Cells were then incubated with Ki67 Antibody (HY-P80506) at 1/200 dilution in quick block buffer overnight at 4 ℃. AF488-conjugated Goat Anti-Rabbit IgG H&L(HY-P8002, Green) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. The Nuclear counterstain was DAPI (Blue).
Background
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Function
Protein that associates with the surface of mitotic chromosomes and acts both as a chromosome repellent during early mitosis and chromosome attractant during late mitosis (PubMed:27362226, PubMed:32879492, PubMed:35513709, PubMed:39153474). Required to maintain individual mitotic chromosomes dispersed in the cytoplasm following nuclear envelope disassembly (PubMed:27362226). During early mitosis, relocalizes from nucleoli to the chromosome surface where it forms extended brush structures that cover a substantial fraction of the chromosome surface (PubMed:27362226). The MKI67 brush structure 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). During mitotic anaphase, the MKI67 brush structure collapses and MKI67 switches from a chromosome repellent to a chromosome attractant to promote chromosome clustering and facilitate the exclusion of large cytoplasmic particles from the future nuclear space (PubMed:32879492, PubMed:39153474). Mechanistically, dephosphorylation during mitotic exit and simultaneous exposure of a conserved basic patch induce the RNA-dependent formation of a liquid-like condensed phase on the chromosome surface, promoting coalescence of neighboring chromosome surfaces and clustering of chromosomes (PubMed:39153474). Binds premature ribosomal RNAs during anaphase; promoting liquid-liquid phase separation (PubMed:28935370, PubMed:39153474). 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; it is however unclear whether it plays a direct role in chromatin organization or whether it is an indirect consequence of its function in mitotic chromosome (PubMed:24867636)
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Subcellular Localization
Chromosome; Nucleus; Nucleus, nucleolus
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Isoforms & Post-Translational Modification
P46013 has 2 isomers: P46013-1: 358694 Da (predicted); P46013-2: 319444 Da (predicted).
Hyperphosphorylated by CDK1 in mitosis; hyperphosphorylatiom prevents undergoing liquid-liquid phase separation (PubMed:10502411, PubMed:10653604, PubMed:25012651, PubMed:39153474). Dephosphorylated by PPP1CC at the onset of anaphase (PubMed:25012651). Dephosphorylated by protein phosphatase 2A (PP2A) at the onset of anaphase (By similarity). Dephosphorylation by protein phosphatase 2A (PP2A) and simultaneous exposure of the positively charged patch (CP) during mitotic exit induce the RNA-dependent formation of a liquid-like condensed phase on the chromosome surface (PubMed:39153474);Ubiquitinated by the APC/C complex after neuronal progenitors exit mitosis during brain development, leading to clearance from constitutive heterochromatin -
Subunit
Interacts with KIF15 (PubMed:10878014). Interacts (via the FHA domain) with NIFK (PubMed:11342549, PubMed:14659764, PubMed:16244663). Interacts with PPP1CC (PubMed:24867636, PubMed:25012651). Component of a complex at least composed of ZNF335, HCFC1, CCAR2, EMSY, MKI67, RBBP5, ASH2L and WDR5; the complex is formed as a result of interactions between components of a nuclear receptor-mediated transcription complex and a histone methylation complex (PubMed:19131338). Interacts with ZNF335 (PubMed:19131338, PubMed:23178126)
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SwissProt ID
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Synonyms
Proliferation marker protein Ki-67, Antigen identified by monoclonal antibody Ki-67, Antigen KI-67, Antigen Ki67, MKI67
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Research Field
Cell Biology
Documentation
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Data Sheet (235 KB)
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SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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User Guide for Antibodies (1077 KB)