• Product name

    Anti-Oxytocin-neurophysin 1 antibody
    See all Oxytocin-neurophysin 1 primary antibodies
  • Description

    Rabbit polyclonal to Oxytocin-neurophysin 1
  • Host species

  • Specificity

    Less than 1% reactivity to vasopressin.
  • Tested applications

    Suitable for: IHC-FoFr, ICC/IF, IHC-Pmore details
  • Species reactivity

    Reacts with: Mouse, Rat, Sheep, Rabbit, Guinea pig, Human, Pig
  • Immunogen

    Other Immunogen Type corresponding to Oxytocin-neurophysin 1. Immunogen: oxytocin-thyroglobulin

  • Positive control

    • ICC/IF: HepG2 cells.



Our Abpromise guarantee covers the use of ab2078 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
IHC-FoFr Use at an assay dependent concentration. PubMed: 20043984
ICC/IF 1/200.
IHC-P 1/10000.


  • Relevance

    Neurophysin 1 specifically binds oxytocin. Oxytocin causes contraction of the smooth muscle of the uterus and of the mammary gland. Oxytocin is a posterior pituitary hormone which is synthesized as an inactive precursor in the hypothalamus along with its carrier protein neurophysin I. Together with neurophysin, it is packaged into neurosecretory vesicles and transported axonally to the nerve endings in the neurohypophysis, where it is either stored or secreted into the bloodstream. Oxytocin contracts smooth muscle during parturition and lactation. It is also involved in cognition, tolerance, adaptation and complex sexual and maternal behaviour, as well as in the regulation of water excretion and cardiovascular functions.
  • Cellular localization

  • Database links

  • Alternative names

    • MGC126890 antibody
    • MGC126892 antibody
    • Neurophysin 1 antibody
    • Neurophysin I antibody
    • Ocytocin antibody
    • OT antibody
    • OT NPI antibody
    • OXT antibody
    • Oxytocin Neurophysin preproprotein antibody
    • Oxytocin prepro (neurophysin I) antibody
    • Oxytocin prepropeptide antibody
    • Oxytocin-neurophysin 1 antibody
    see all


  • Minipigs were deeply anesthetized with a combination of midazolam and ketamine, prior to transcardial perfusion with phosphate buffered 4% paraformaldehyde (pH 7.4). After perfusion, the brains were removed with special care taken to preserve the optic chiasm and the median eminence. Blocks of tissue containing the hypothalami were dissected, postfixed in the same fixative for 1 day and subsequently cryoprotected in 30% sucrose for 3–4 days, prior to freezing. 10 series of 40-mm thick coronal (6 animals), sagittal (1 animal), and horizontal (1 animal) cryostat sections were collected. Coronal sections for immunohistochemistry were maintained at -18°C as free-floating sections in a cryoprotectant poly-ethylene glycol solution for up to four weeks.
    Immunohistochemistry was performed using the avidin-biotin method. Accordingly, free-floating sections were first rinsed in Tris-buffered saline (TBS; 0.05 M; pH 7.4) for 15 minutes. Incubations with avidin (0.1%) and
  • ab2078 stained HepG2 (human liver hepatocellular carcinoma cell line) cells. The cells were 4% formaldehyde fixed (10 minutes) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1 hour to permeabilize the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody ab2078 at 1/200 dilution overnight at +4°C. The secondary antibody (green) was DyLight® 488 goat anti- rabbit (ab96899) IgG (H+L) used at a 1/1000 dilution for 1 hour. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1 hour. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43 µM.


This product has been referenced in:

  • Song TJ  et al. Altered Behaviors and Impaired Synaptic Function in a Novel Rat Model With a Complete Shank3 Deletion. Front Cell Neurosci 13:111 (2019). Read more (PubMed: 30971895) »
  • Mohan S  et al. Oxytocin is present in islets and plays a role in beta-cell function and survival. Peptides 100:260-268 (2018). IF . Read more (PubMed: 29274352) »
See all 13 Publications for this product

Customer reviews and Q&As

1-5 of 5 Abreviews or Q&A

Immunohistochemistry (Frozen sections)
Mouse Tissue sections (Brain)
Yes - 0.1% Triton X-100
Blocking step
Serum as blocking agent for 24 hour(s) and 0 minute(s) · Concentration: 10% · Temperature: 4°C

Kevin Zhang

Verified customer

Submitted Jan 31 2018

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)
Blocking step
hydrogen peroxide as blocking agent for 10 minute(s) · Concentration: 3% · Temperature: 25°C
Antigen retrieval step
Heat mediated - Buffer/Enzyme Used: citrate, pH6.0, 100C 20 min
Human Tissue sections (placenta)

Abcam user community

Verified customer

Submitted Jul 01 2014


Thank you for your inquiry. Unfortunately, we are unable to track down the particular antibodies the authors used when it is not specifically mentioned in the paper. However, the following antibodies might have been used: ab39363: anti-Vasopressin (AVP), guaranteed to work in immunohistochemistry (PFA perfusion fixed frozen sections and frozen sections, IHC-FoFr, IHC-Fr) on rat. Click here (or use the following: https://www.abcam.com/index.html?datasheet=39363). ab2078: anti-Oxytocin, guaranteed to work in RIA and immunohistochemistry (PFA perfusion fixed frozen sections and paraffin-embedded sections, IHC-FoFr, IHC-P) on rat. Click here (or use the following: https://www.abcam.com/index.html?datasheet=2078). ab11143: anti-Oxytocin, guaranteed to work in immunohistochemistry (frozen sections, IHC-Fr) on rat. Click here (or use the following: https://www.abcam.com/index.html?datasheet=11143). ab78364: anti-Oxytocin, guaranteed to work in ELISA and immunohistochemistry (PFA perfusion fixed frozen sections and paraffin-embedded sections, IHC-FoFr, IHC-P) on rat. Click here (or use the following: https://www.abcam.com/index.html?datasheet=78364). We are happy to reassure you that all of our products are covered by our Abpromise, which guarantees that the product will work in the applications and species specified on the datasheet, or we will offer a replacement, credit, or refund within 6 months of purchase. If the product is to be used in an untested species or application, you may be eligible for our testing discount program if the antibody has not yet been purchased. Please contact our Scientific Support team by replying to this email prior to purchase for more information. I hope this information is helpful. Please do not hesitate to contact us again with any other questions.

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Thank you for your enquiry. I am sorry but we do not have an online RIA protocol. However, I would like to recommmend the following resources: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=716433&dopt=Abstract http://www.phoenixpeptide.com/qcdata/RIK/protocol10-1280_p.pdf http://faculty.washington.edu/jwingfie/protocols.html I hope this information helps, please do not hesitate to contact us if you need any more advice or information.

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Thank you for your enquiry regarding our antibodies ab2078 and ab8745. Unfortunately we do not have any further information regarding their cross reactivity with vasotocin or isotocin, this has not been tested in our laboratories. I'm very sorry I couldn't help you more on this occasion,

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