Chk1 Antibodies
We offer Chk1 Antibodies for use in common research applications: ELISA, Immunocytochemistry/Immunofluorescence, Immunohistochemistry, Immunohistochemistry-Paraffin, Immunoprecipitation, Immunoprecipitation (Negative), Proximity Ligation Assay, Sandwich ELISA, Simple Western, Western Blot. Each Chk1 Antibody is fully covered by our Guarantee+, to give you complete peace of mind and the support when you need it. Our Chk1 Antibodies can be used in a variety of model species: Human, Mouse, Rat, Yeast. Use the list below to choose the Chk1 Antibody which is most appropriate for your research; you can click on each one to view full technical details, images, references, reviews and related products. Choose from our Chk1 polyclonal antibodies and browse our Chk1 monoclonal antibody catalog.
Alternate Names for Chk1 Antibodies
anti-Chk1 antibody, anti-CHEK1 antibody, anti-Checkpoint, S. pombe, homolog of, 1 antibody, anti-CHK1 (checkpoint, S.pombe) homolog antibody, anti-CHK1 checkpoint homolog (S. pombe) antibody, anti-CHK1serine/threonine-protein kinase Chk1 antibody, anti-EC 2.7.11 antibody, anti-EC 2.7.11.1 antibody
21 Results for "chk1" in Primary Antibodies
![Western Blot: Chk1 Antibody [NB100-464] - Knockout of ORC2 in HCT116 p53-/- cells. Western blot of ORC2 in HBEC and 293T cell lines. Ponceau S staining of total protein or immunoblot of Chk1 show equal loading of the pairs of lanes. Image collected and cropped by CiteAb from the following publication (//elifesciences.org/articles/19084), licensed under a CC-BY license.](http://images.novusbio.com/fullsize/Chk1-Antibody-Western-Blot-NB100-464-img0034.jpg "<b>Biological Strategies Validation. </b>Western Blot: Chk1 Antibody [NB100-464] - Knockout of ORC2 in HCT116 p53-/- cells. Western blot of ORC2 in HBEC and 293T cell lines. Ponceau S staining of total protein or immunoblot of Chk1 show equal loading of the pairs of lanes. Image collected and cropped by CiteAb from the following publication (//elifesciences.org/articles/19084), licensed under a CC-BY license.")
![<b>Biological Strategies Validation. </b>Immunohistochemistry-Paraffin: Chk1 Antibody [NB100-464] - Section of human breast carcinoma. Antibody: Affinity purified rabbit anti-CHK1 used at a dilution of 1:1,000 (1ug/ml). Detection: DAB](http://images.novusbio.com/fullsize/Chk1-Antibody-Immunohistochemistry-Paraffin-NB100-464-img0029.jpg)
![<b>Biological Strategies Validation. </b>Western Blot: Chk1 Antibody [NB100-464] - Detection of Human Chk1 by Western Blot. Samples: Whole cell lysate (50 ug) from HeLa, 293T, Jurkat, and mouse TMCK cells. Antibodies: Affinity purified rabbit anti-Chk1 antibody NB100-464 used for WB at 0.4 ug/ml. Detection: Chemiluminescence with an exposure time of 30 seconds.](http://images.novusbio.com/fullsize/Chk1-Antibody-Western-Blot-NB100-464-img0032.jpg)
![Immunoprecipitation: Chk1 Antibody [NB100-464] - Detection of human Chk1 by western blot of immunoprecipitates. Samples: Whole cell lysate (1 mg for IP; 20% of IP loaded) from HeLa cells. Antibodies: Affinity purified rabbit anti-Chk1 antibody NB100-464 (lot 2) used for IP at 6 ug/mg lysate. Chk1 was also immunoprecipitated by a previous lot (lot 1) of this antibody. For blotting immunoprecipitated Chk1, NB100-464 (lot 2) was used at 1 ug/ml. Detection: Chemiluminescence with an exposure time of 30 seconds.](http://images.novusbio.com/fullsize/Chk1-Antibody-Immunoprecipitation-NB100-464-img0033.jpg)
![Western Blot: Chk1 Antibody [NB100-464] - Knockout of ORC2 in HCT116 p53-/- cells.(G) WB for indicated proteins in clones indicated on the top. Darker exposure of ORC2 blots is shown at the bottom. Ponceau S stains all proteins on the blot & also indicates equal loading of lanes. Image collected & cropped by CiteAb from the following publication (//elifesciences.org/articles/19084), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb100-464_rabbit-polyclonal-chk1-antibody-310202415371972.jpg)
![Western Blot: Chk1 Antibody [NB100-464] - Knockout of ORC1 in HCT116 p53-/- cells.(A) Strategy for insertion of a blasticidin gene & poly A site after first methionine of ORC1 in the second exon. (B) PCR on genomic DNA of indicated clones. WT: HCT116 p53-/- & ORC1+/+. ORC1 Knockout clones, B14, B48 & BP32 have an insert on both alleles of ORC1 as indicated by the absence of 0.6 kb PCR product. (C) Western blot for indicated proteins in clones indicated on the top. Darker exposure of the ORC1 blots is shown at the bottom. Ponceau S stains all proteins on the blot & also indicates equal loading of lanes. (D) Immunoblot of soluble & chromatin-associated proteins in the clones indicated at the top. For each panel, all the lanes are from the same blot & exposure. (E) Input cell lysate & immunoprecipitates of ORC1 immunoblotted for ORC1. Darker exposure of the top blots is shown in the middle. Tubulin in the cell lysate or the IgG band in the immunoprecipitate serves as loading control.DOI://dx.doi.org/10.7554/eLife.19084.005 Image collected & cropped by CiteAb from the following publication (//elifesciences.org/articles/19084), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb100-464_rabbit-polyclonal-chk1-antibody-310202415525253.jpg)
![Western Blot: Chk1 Antibody (2G1D5) [NB100-1768] - Analysis using Chk1 mouse mAb against HEK293T cells transfected with the pCMV6-ENTRY control (1) and pCMV6-ENTRY Chk1 cDNA (2).](http://images.novusbio.com/fullsize/Chk1-Antibody-2G1D5-Western-Blot-NB100-1768-img0003.jpg "Western Blot: Chk1 Antibody (2G1D5) [NB100-1768] - Analysis using Chk1 mouse mAb against HEK293T cells transfected with the pCMV6-ENTRY control (1) and pCMV6-ENTRY Chk1 cDNA (2).")
![Immunocytochemistry/Immunofluorescence: Chk1 Antibody (2G1D5) [NB100-1768] - Chk1 antibody was tested at 1:10 in HeLa cells with DyLight 488 (green). Nuclei and alpha-tubulin were counterstained with DAPI (blue) and Dylight 550 (red). Image objective 40X.](http://images.novusbio.com/fullsize/Chk1-Antibody-2G1D5-Immunocytochemistry-Immunofluorescence-NB100-1768-img0005.jpg)
![Immunohistochemistry-Paraffin: Chk1 Antibody (2G1D5) [NB100-1768] - Analysis of FFPE human lung using Chk1 antibody (clone 2G1D5) at 1:250 on a Bond Rx autostainer (Leica Biosystems). The assay involved 20 minutes of heat induced antigen retrieval (HIER) using 10 mM sodium citrate buffer (pH 6.0) and endogenous peroxidase quenching with peroxide block. The sections were incubated with primary antibody for 30 minutes and Bond Polymer Refine Detection (Leica Biosystems) with DAB was used for signal development followed by counterstaining with hematoxylin. Whole slide scanning and capturing of representative images was performed using Aperio AT2 (Leica Biosystems). Cytoplasmic and nuclear staining of Chk1 was observed as this is a ubiquitous cell checkpoint protein. Staining was performed by Histowiz.](http://images.novusbio.com/fullsize/Chk1-Antibody-2G1D5-Immunohistochemistry-Paraffin-NB100-1768-img0006.jpg)
![Western Blot: Chk1 Antibody (2G1D5) [NB100-1768] - Analysis using anti-Chk1 mouse mAb against A431 (1), Hela (2), NIH/3T3 (3) and K562 (4) cell lysates.](http://images.novusbio.com/fullsize/Chk1-Antibody-2G1D5-Western-Blot-NB100-1768-img0002.jpg)
![Immunohistochemistry-Paraffin: Chk1 [p Ser296] Antibody (SN06-50) [NBP2-67711] - Analysis of paraffin-embedded human tonsil tissue using anti- phospho-Chk1 (S296) antibody. Counter stained with hematoxylin.](http://images.novusbio.com/fullsize/Chk1-p-Ser296-Antibody-SN06-50-Immunohistochemistry-Paraffin-NBP2-67711-img0002.jpg "Immunohistochemistry-Paraffin: Chk1 [p Ser296] Antibody (SN06-50) [NBP2-67711] - Analysis of paraffin-embedded human tonsil tissue using anti- phospho-Chk1 (S296) antibody. Counter stained with hematoxylin.")
![Immunohistochemistry-Paraffin: Chk1 [p Ser296] Antibody (SN06-50) [NBP2-67711] - Analysis of paraffin-embedded human breast carcinoma tissue using anti- phospho-Chk1 (S296) antibody. Counter stained with hematoxylin.](http://images.novusbio.com/fullsize/Chk1-p-Ser296-Antibody-SN06-50-Immunohistochemistry-Paraffin-NBP2-67711-img0001.jpg)
![Western Blot: Chk1 Antibody [NB100-311] - Samples: Whole cell lysate (50 ug) from 293T and Jurkat cells prepared using NETN lysis buffer. Antibody: Affinity purified goat anti-Chk1 antibody used for WB at 0.1 ug/ml. Detection: Chemiluminescence with an exposure time of 3 minutes.](http://images.novusbio.com/fullsize/Chk1-Antibody-Western-Blot-NB100-311-img0200.jpg "<b>Biological Strategies Validation. </b>Western Blot: Chk1 Antibody [NB100-311] - Samples: Whole cell lysate (50 ug) from 293T and Jurkat cells prepared using NETN lysis buffer. Antibody: Affinity purified goat anti-Chk1 antibody used for WB at 0.1 ug/ml. Detection: Chemiluminescence with an exposure time of 3 minutes.")
![<b>Biological Strategies Validation. </b>Western Blot: Chk1 Antibody [NB100-311] - Whole Cell lysate (50 ug for WB, 500 ug for IP) from HeLa cells. Affinity purified goat anti-Chk1 used as indicated. Immunoprecipitated material was detected by WB using a monoclonal antibody to Chk1. Detection: Chemiluminescence with 1 minute exposure.](http://images.novusbio.com/fullsize/Chk1-Antibody-Western-Blot-NB100-311-img0003.jpg)
![Western Blot: Chk1 [p Ser280] Antibody [NBP3-05379] - Western blot analysis of extracts of HT-29 cells, using Phospho-Chk1-Ser280 antibody (NBP3-05379) at 1:1000 dilution. Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) at 1:10000 dilution. Lysates/proteins: 25ug per lane. Blocking buffer: 3% BSA.](http://images.novusbio.com/fullsize/Chk1-[p-Ser280]-Antibody-Western-Blot-NBP3-05379-img0005.jpg "Western Blot: Chk1 [p Ser280] Antibody [NBP3-05379] - Western blot analysis of extracts of HT-29 cells, using Phospho-Chk1-Ser280 antibody (NBP3-05379) at 1:1000 dilution. Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) at 1:10000 dilution. Lysates/proteins: 25ug per lane. Blocking buffer: 3% BSA.")
![Immunohistochemistry-Paraffin: Chk1 [p Ser280] Antibody [NBP3-05379] - Immunohistochemistry of paraffin-embedded mouse brain using Chk1 antibody (NBP3-05379) at dilution of 1:100 (40x lens).](http://images.novusbio.com/fullsize/Chk1-[p-Ser280]-Antibody-Immunohistochemistry-Paraffin-NBP3-05379-img0003.jpg)
![Immunohistochemistry-Paraffin: Chk1 [p Ser280] Antibody [NBP3-05379] - Immunohistochemistry of paraffin-embedded rat heart using Chk1 antibody (NBP3-05379) at dilution of 1:100 (40x lens).](http://images.novusbio.com/fullsize/Chk1-[p-Ser280]-Antibody-Immunohistochemistry-Paraffin-NBP3-05379-img0001.jpg)
![Immunohistochemistry-Paraffin: Chk1 [p Ser280] Antibody [NBP3-05379] - Immunohistochemistry of paraffin-embedded human placenta using Chk1 antibody (NBP3-05379) at dilution of 1:100 (40x lens).](http://images.novusbio.com/fullsize/Chk1-[p-Ser280]-Antibody-Immunohistochemistry-Paraffin-NBP3-05379-img0002.jpg)
![Immunohistochemistry: Chk1 Antibody (2F2) [NBP3-26658] - Image of Chk1 Antibody (2F2) diluted at 1:100 and staining in paraffin-embedded human small intestine tissue performed. After dewaxing and hydration, antigen retrieval was mediated by high pressure in a citrate buffer (pH 6.0). Section was blocked with 10% normal goat serum 30min at RT. Then primary antibody (1% BSA) was incubated at 4C overnight. The primary is detected by a Goat anti-rabbit IgG polymer labeled by HRP and visualized using 0.05% DAB.](http://images.novusbio.com/fullsize/nbp3-26658_rabbit-chk1-mab-2f2-26220241510613.jpg "Immunohistochemistry: Chk1 Antibody (2F2) [NBP3-26658] - Image of Chk1 Antibody (2F2) diluted at 1:100 and staining in paraffin-embedded human small intestine tissue performed. After dewaxing and hydration, antigen retrieval was mediated by high pressure in a citrate buffer (pH 6.0). Section was blocked with 10% normal goat serum 30min at RT. Then primary antibody (1% BSA) was incubated at 4C overnight. The primary is detected by a Goat anti-rabbit IgG polymer labeled by HRP and visualized using 0.05% DAB.")
![Western Blot: Chk1 Antibody (2F2) [NBP3-26658] - Positive Western Blot detected in: K562 whole cell lysate, 293T whole cell lysate, MCF-7 whole cell lysate, HepG2 whole cell lysate. All lanes: Chk1 Antibody at 1: 1000 Secondary: Goat polyclonal to rabbit IgG at 1/50000 dilution. Predicted band size: 55, 44, 51 kDa Observed band size: 55 kDa](http://images.novusbio.com/fullsize/nbp3-26658_rabbit-chk1-mab-2f2-282202411442640.jpg)
![Immunocytochemistry/Immunofluorescence: Chk1 Antibody (2F2) [NBP3-26658] - Staining of Hela Cells with Chk1 Antibody (2F2) at 1:50, counter-stained with DAPI. The cells were fixed in 4% formaldehyde, permeated by 0.2% Triton X-100, and blocked in 10% normal Goat Serum. The cells were then incubated with the antibody overnight at 4C. Nuclear DNA was labeled in blue with DAPI. The secondary antibody was FITC-conjugated Goat Anti-Rabbit IgG (H+L).](http://images.novusbio.com/fullsize/nbp3-26658_rabbit-chk1-mab-2f2-28220241323640.jpg)
![Western Blot: Chk1 [p Ser317] Antibody [NBP2-37703] - Whole cell lysate (50 ug) from HeLa cells prepared using NETN lysis buffer treated with hydroxyurea (2mM for 24 hours), EPE (100uM for 4 hours), or untreated. Affinity purified rabbit anti-Chk1, Phospho (S317) antibody used for WB at 0.2 ug/ml. Detection: Chemiluminescence with an exposure time of 3 minutes.](http://images.novusbio.com/fullsize/Chk1-[p-Ser317]-Antibody-Western-Blot-NBP2-37703-img0001.jpg "<b>Biological Strategies Validation. </b>Western Blot: Chk1 [p Ser317] Antibody [NBP2-37703] - Whole cell lysate (50 ug) from HeLa cells prepared using NETN lysis buffer treated with hydroxyurea (2mM for 24 hours), EPE (100uM for 4 hours), or untreated. Affinity purified rabbit anti-Chk1, Phospho (S317) antibody used for WB at 0.2 ug/ml. Detection: Chemiluminescence with an exposure time of 3 minutes.")
![<b>Biological Strategies Validation. </b>Immunohistochemistry: Chk1 [p Ser317] Antibody [NBP2-37703] - Sample: FFPE section of human breast carcinoma. Antibody: Affinity purified rabbit anti- Chk1, Phospho (S317) used at a dilution of 1:1,000 (1ug/ml). Detection: DAB. Counterstain: IHC Hematoxylin (blue).](http://images.novusbio.com/fullsize/Chk1-[p-Ser317]-Antibody-Immunohistochemistry-NBP2-37703-img0003.jpg)
![Immunohistochemistry: Chk1 [p Ser317] Antibody (PSH03-84) [NBP3-32755] - Immunohistochemical analysis of paraffin-embedded HeLa cells treated with or without UV for 40 minutes with Rabbit anti-Chk1 antibody (NBP3-32755) at 1/1,000 dilution. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 2 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (NBP3-32755) at 1/1,000 dilution for 1 hour at room temperature. 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 DPX.](http://images.novusbio.com/fullsize/nbp3-32755_rabbit-chk1-p-ser317-mab-psh03-84-298202414262624.jpg "Immunohistochemistry: Chk1 [p Ser317] Antibody (PSH03-84) [NBP3-32755] - Immunohistochemical analysis of paraffin-embedded HeLa cells treated with or without UV for 40 minutes with Rabbit anti-Chk1 antibody (NBP3-32755) at 1/1,000 dilution. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 2 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (NBP3-32755) at 1/1,000 dilution for 1 hour at room temperature. 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 DPX.")
![Western Blot: Chk1 [p Ser317] Antibody (PSH03-84) [NBP3-32755] - Western blot analysis of Chk1 on different lysates with Rabbit anti-Chk1 antibody (NBP3-32755) at 1/1,000 dilution. Lane 1: HeLa cell lysate Lane 2: HeLa treated with UV for 1 hour cell lysate Lane 3: C6 cell lysate Lane 4: C6 treated with 100nM Calyculin A for 30 minutes cell lysate Lysates/proteins at 20 µg/Lane. Predicted band size: 54 kDa Observed band size: 54 kDa Exposure time: 43 seconds; 4-20% SDS-PAGE gel. Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody at 1/1,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody at 1/50,000 dilution was used for 1 hour at room temperature.](http://images.novusbio.com/fullsize/nbp3-32755_rabbit-chk1-p-ser317-mab-psh03-84-392024848501.jpg)
![Western Blot: Chk1 Antibody (0S3Q1) [NBP3-16353] - Western blot analysis of extracts of various cell lines, using Chk1 antibody (NBP3-16353) at 1:1000 dilution. Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) at 1:10000 dilution. Lysates/proteins: 25ug per lane. Blocking buffer: 3% nonfat dry milk in TBST. Detection: ECL Basic Kit. Exposure time: 10s.](http://images.novusbio.com/fullsize/Chk1-Antibody-0S3Q1-Western-Blot-NBP3-16353-img0002.jpg "Western Blot: Chk1 Antibody (0S3Q1) [NBP3-16353] - Western blot analysis of extracts of various cell lines, using Chk1 antibody (NBP3-16353) at 1:1000 dilution. Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) at 1:10000 dilution. Lysates/proteins: 25ug per lane. Blocking buffer: 3% nonfat dry milk in TBST. Detection: ECL Basic Kit. Exposure time: 10s.")
![Immunohistochemistry-Paraffin: Chk1 Antibody (0S3Q1) [NBP3-16353] - Immunohistochemistry of paraffin-embedded human colon using Chk1 Rabbit mAb (NBP3-16353) at dilution of 1:100 (40x lens).Perform microwave antigen retrieval with 10 mM PBS buffer pH 7.2 before commencing with IHC staining protocol.](http://images.novusbio.com/fullsize/Chk1-Antibody-0S3Q1-Immunohistochemistry-Paraffin-NBP3-16353-img0001.jpg)