• Product name
    Anti-ROCK1 antibody [EPR638Y]
    See all ROCK1 primary antibodies
  • Description
    Rabbit monoclonal [EPR638Y] to ROCK1
  • Host species
  • Tested applications
    Suitable for: ICC/IF, IHC-Fr, WB, IP, IHC-Pmore details
    Unsuitable for: Flow Cyt
  • Species reactivity
    Reacts with: Mouse, Rat, Human
  • Immunogen

    Synthetic peptide within Human ROCK1 aa 1300-1400 (C terminal). The exact sequence is proprietary.

  • Positive control
    • WB: HeLa cell lysate, HEK293 cell lysate IHC: Human lymphoma tissue.
  • General notes



    Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents.

    We are constantly working hard to ensure we provide our customers with best in class antibodies. As a result of this work we are pleased to now offer this antibody in purified format. We are in the process of updating our datasheets. The purified format is designated 'PUR' on our product labels. If you have any questions regarding this update, please contact our Scientific Support team.

    This product is a recombinant rabbit monoclonal antibody.



Our Abpromise guarantee covers the use of ab134181 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
ICC/IF 1/50 - 1/100.
IHC-Fr Use at an assay dependent concentration. PubMed: 24465504
WB 1/500 - 1/1000. Detects a band of approximately 160 kDa (predicted molecular weight: 158 kDa).
IP 1/60.
IHC-P 1/50 - 1/100. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
  • Application notes
    Is unsuitable for Flow Cyt.
  • Target

    • Function
      Protein kinase which is a key regulator of actin cytoskeleton and cell polarity. Involved in regulation of smooth muscle contraction, actin cytoskeleton organization, stress fiber and focal adhesion formation, neurite retraction, cell adhesion and motility via phosphorylation of DAPK3, GFAP, LIMK1, LIMK2, MYL9/MLC2, PFN1 and PPP1R12A. Phosphorylates FHOD1 and acts synergistically with it to promote SRC-dependent non-apoptotic plasma membrane blebbing. Phosphorylates JIP3 and regulates the recruitment of JNK to JIP3 upon UVB-induced stress. Acts as a suppressor of inflammatory cell migration by regulating PTEN phosphorylation and stability. Acts as a negative regulator of VEGF-induced angiogenic endothelial cell activation. Required for centrosome positioning and centrosome-dependent exit from mitosis. Plays a role in terminal erythroid differentiation. May regulate closure of the eyelids and ventral body wall by inducing the assembly of actomyosin bundles. Promotes keratinocyte terminal differentiation. Involved in osteoblast compaction through the fibronectin fibrillogenesis cell-mediated matrix assembly process, essential for osteoblast mineralization.
    • Tissue specificity
      Detected in blood platelets.
    • Sequence similarities
      Belongs to the protein kinase superfamily. AGC Ser/Thr protein kinase family.
      Contains 1 AGC-kinase C-terminal domain.
      Contains 1 PH domain.
      Contains 1 phorbol-ester/DAG-type zinc finger.
      Contains 1 protein kinase domain.
      Contains 1 REM (Hr1) repeat.
    • Domain
      The C-terminal auto-inhibitory domain interferes with kinase activity. RHOA binding leads to a conformation change and activation of the kinase. Truncated ROCK1 is constitutively activated.
    • Post-translational
      Autophosphorylated on serine and threonine residues.
      Cleaved by caspase-3 during apoptosis. This leads to constitutive activation of the kinase and membrane blebbing.
    • Cellular localization
      Cytoplasm. Cytoplasm, cytoskeleton, microtubule organizing center, centrosome, centriole. Golgi apparatus membrane. Cell projection, bleb. Cytoplasm, cytoskeleton. Cell membrane. Cell projection, lamellipodium. Cell projection, ruffle. Associated with the mother centriole and an intercentriolar linker. Colocalizes with ITGB1BP1 and ITGB1 at the cell membrane predominantly in lamellipodia and membrane ruffles, but also in retraction fibers. Localizes at the cell membrane in an ITGB1BP1-dependent manner (By similarity). A small proportion is associated with Golgi membranes.
    • Information by UniProt
    • Database links
    • Alternative names
      • coiled-coil-containing protein kinase 1 antibody
      • coiled-coil-containing protein kinase I antibody
      • MGC131603 antibody
      • MGC43611 antibody
      • p160 Rhoassociated coiled coil-forming protein kinase antibody
      • p160 ROCK-1 antibody
      • p160 ROCK1 antibody
      • p160ROCK antibody
      • PRO0435 antibody
      • Renal carcinoma antigen NY REN 35 antibody
      • Renal carcinoma antigen NY-REN-35 antibody
      • Rho associated coiled coil containing protein kinase 1 antibody
      • Rho associated protein kinase 1 antibody
      • Rho kinase antibody
      • Rho-alpha kinase antibody
      • Rho-associated antibody
      • Rho-associated protein kinase 1 antibody
      • ROCK I antibody
      • ROCK-I antibody
      • ROCK1 antibody
      • ROCK1_HUMAN antibody
      • Rok antibody
      • rokalpha antibody
      see all


    • Lane 1: Wild type HAP1 whole cell lysate (40 µg)
      Lane 2: ROCK1 knockout HAP1 whole cell lysate (40 µg)
      Lane 3: HEK293 whole cell lysate (20 µg)
      Lane 4: HeLa whole cell lysate (20 µg)

      Lanes 1 - 4: Merged signal (red and green). Green - ab134181 observed at 165 kDa. Red - loading control, ab18058, observed at 130 kDa.

      ab134181 was shown to specifically react with ROCK1 when ROCK1 knockout samples were used. Wild-type and ROCK1 knockout samples were subjected to SDS-PAGE. Ab134181 and ab18058 (Mouse anti Vinculin loading control) were incubated overnight at 4°C at 500 dilution and 1/10000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed ab216773 and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed ab216776 secondary antibodies at 1/10000 dilution for 1 hour at room temperature before imaging.

    • ab134181 (1/200) staining ROCK1 in Hela cells (green). Cells were fixed in paraformaldehyde, permeabilised in 0.5% Triton X100/PBS and counterstained with DAPI in order to highlight the nucleus (red). For further experimental details please refer to Abreview.

      See Abreview

    • Anti-ROCK1 antibody [EPR638Y] (ab134181) at 1/500 dilution + HeLa cell lysate at 10 µg

      HRP labelled goat anti-rabbit at 1/2000 dilution

      Predicted band size: 158 kDa

    • Immunohistochemical analysis of paraffin embedded Human lymphoma tissue labelling ROCK1 with ab134181 at a dilution of 1/50.


    This product has been referenced in:
    • Tang H  et al. Loss of CLOCK under high glucose upregulates ROCK1-mediated endothelial to mesenchymal transition and aggravates plaque vulnerability. Atherosclerosis 275:58-67 (2018). WB ; Human . Read more (PubMed: 29860109) »
    • Stuelten CH  et al. Lysophosphatidic acid regulates the motility of MCF10CA1a breast cancer cell sheets via two opposing signaling pathways. Cell Signal 45:1-11 (2018). Read more (PubMed: 29337044) »
    See all 10 Publications for this product

    Customer reviews and Q&As

    1-4 of 4 Abreviews or Q&A

    Western blot
    Loading amount
    50 µg
    Gel Running Conditions
    Non-reduced Non-Denaturing (Native) (12%)
    Rat Tissue lysate - whole (Brain)
    brain trauma
    Blocking step
    Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 25°C

    Dr. Da Liu

    Verified customer

    Submitted Mar 13 2014

    Immunohistochemistry (Frozen sections)
    Blocking step
    Serum as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 10% · Temperature: 21°C
    Mouse Tissue sections (Choroid plexus)
    Choroid plexus
    Yes - 0.25% Triton

    Dr. Sofia Santos

    Verified customer

    Submitted Oct 08 2013


    Thank you for confirming these details and for your cooperation.

    As requested, I have issued a free of charge replacement of alternative ab134181 Anti-ROCK1 antibody [EPR638Y]with the order number #####.

    To check the status of the order please contact our Customer Service team and reference this number.

    Please note that this free of charge replacement vial is also covered by our Abpromise guarantee. Should you still be experiencing difficulties, or if you have any further questions, please do not hesitate to letme know. I sincerely hope this vial will work in your experiments. If not, please do not hesitate to contact me and I suggest in this case the best way to proceed would be to provide a refund or credit note for the original antibody.

    I wish you the best of luck and look forward to hearing from you with the results of the experiments with the new antibody.

    Read More
    Immunocytochemistry/ Immunofluorescence
    Human Cell (HeLa)
    Yes - 0.5% Triton-X100 in PBS

    Dr. Kirk Mcmanus

    Verified customer

    Submitted Sep 05 2012

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