• Product nameAnti-Twist antibody
    See all Twist primary antibodies
  • Description
    Rabbit polyclonal to Twist
  • Tested applicationsSuitable for: IHC-P, WBmore details
  • Species reactivity
    Reacts with: Mouse, Human
    Predicted to work with: Rat, Horse, Chicken, Cow, Cat, Dog, Pig, Chimpanzee, Zebrafish
  • Immunogen

    Synthetic peptide: IQTLKLAARY IDFLYQVLQS DELDSKMASC SYVAHERLSY AFSVWRMEGA , corresponding to amino acids 146-195 of Human Twist

  • Positive control
    • Jurkat cell lysate.



Our Abpromise guarantee covers the use of ab49254 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-P 1/100. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
WB Use a concentration of 2.5 µg/ml. Detects a band of approximately 22 kDa (predicted molecular weight: 21 kDa).Can be blocked with Human Twist peptide (ab111667).

Abcam recommends blocking with BSA.


  • FunctionActs as a transcriptional regulator. Inhibits myogenesis by sequestrating E proteins, inhibiting trans-activation by MEF2, and inhibiting DNA-binding by MYOD1 through physical interaction. This interaction probably involves the basic domains of both proteins. Also represses expression of proinflammatory cytokines such as TNFA and IL1B. Regulates cranial suture patterning and fusion. Activates transcription as a heterodimer with E proteins. Regulates gene expression differentially, depending on dimer composition. Homodimers induce expression of FGFR2 and POSTN while heterodimers repress FGFR2 and POSTN expression and induce THBS1 expression. Heterodimerization is also required for osteoblast differentiation.
  • Tissue specificitySubset of mesodermal cells.
  • Involvement in diseaseDefects in TWIST1 are a cause of Saethre-Chotzen syndrome (SCS) [MIM:101400]; also known as acrocephalosyndactyly type 3 (ACS3). SCS is a craniosynostosis syndrome characterized by coronal synostosis, brachycephaly, low frontal hairline, facial asymmetry, hypertelorism, broad halluces, and clinodactyly.
    Defects in TWIST1 are the cause of Robinow-Sorauf syndrome (RSS) [MIM:180750]; also known as craniosynostosis-bifid hallux syndrome. RSS is an autosomal dominant defect characterized by minor skull and limb anomalies which is very similar to Saethre-Chotzen syndrome.
    Defects in TWIST1 are the cause of craniosynostosis type 1 (CRS1) [MIM:123100]. Craniosynostosis consists of premature fusion of one or more cranial sutures, resulting in an abnormal head shape.
  • Sequence similaritiesContains 1 basic helix-loop-helix (bHLH) domain.
  • Cellular localizationNucleus.
  • Information by UniProt
  • Database links
  • Alternative names
    • ACS3 antibody
    • B-HLH DNA binding protein antibody
    • bHLHa38 antibody
    • BPES2 antibody
    • BPES3 antibody
    • Class A basic helix-loop-helix protein 38 antibody
    • CRS1 antibody
    • H-twist antibody
    • OTTHUMP00000116043 antibody
    • SCS antibody
    • TWIST antibody
    • Twist basic helix loop helix transcription factor 1 antibody
    • Twist homolog 1 (Drosophila) antibody
    • Twist homolog 1 antibody
    • TWIST homolog of drosophila antibody
    • Twist related protein 1 antibody
    • Twist-related protein 1 antibody
    • TWIST1 antibody
    • TWST1_HUMAN antibody
    see all

Anti-Twist antibody images

  • Anti-Twist antibody (ab49254) at 2.5 µg/ml + Jurkat cell lysate at 10 µg

    HRP conjugated anti-Rabbit IgG at 1/50,000 - 1/100,000

    Predicted band size : 21 kDa
    Observed band size : 22 kDa (why is the actual band size different from the predicted?)
  • ab49254 staining Twist in mouse lung adencarcinoma induced by urethane tissue sections by Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections). Tissue was fixed with paraformaldehyde and a heat mediated antigen retrieval step was performed using citrate buffer pH 6.0. Samples were then blocked with 4% serum for 2 hours at 25°C followed by incubation with the primary antibody, at a 1/100 dilution, for 16 hours at 4°C. A biotinylated goat anti-rabbit IgG polyclonal was used as secondary antibody at a 1/200 dilution.

    See Abreview

  • ab49254 staining Twist in human testis tissue by Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded tissue sections). The sections were fixed in paraformaldehyde and subjected to heat-mediated antigen retrieval in citric buffer, pH 6.0 prior to blocking with 10% serum for 1 hour at 20°C. The primary antibody was diluted 1/50 and incubated with the sample for 12 hour at 4°C. An HRP-conjugated goat anti-rabbit polyclonal was used as the secondary antibody, diluted 1/200.

    See Abreview

  • Immunohistochemistry of Uterus tissue at an antibody concentration of 4-8µg/ml using anti-TWIST1 antibody (ab49254)

  • All lanes : Anti-Twist antibody (ab49254) at 2.5

    Lane 1 : Jurkat cell lysate
    Lane 2 : Jurkat cell lysate with blocking peptide at 2 µg/ml

    Lysates/proteins at 25 µg per lane.

    Predicted band size : 21 kDa

References for Anti-Twist antibody (ab49254)

This product has been referenced in:
  • Abu-Thuraia A  et al. Axl phosphorylates Elmo scaffold proteins to promote Rac activation and cell invasion. Mol Cell Biol 35:76-87 (2015). Read more (PubMed: 25332238) »
  • Fisher ML  et al. Type II transglutaminase stimulates epidermal cancer stem cell epithelial-mesenchymal transition. Oncotarget 6:20525-39 (2015). Human . Read more (PubMed: 25971211) »

See all 15 Publications for this product

Product Wall

Thank you for contacting us.

I can confirm that the recommended concentration for this product in Western Blot is 2.5ug/ml. I have also reviewed the publication listed on the datasheet and found that they had used a 2.0ug/ml concentration ...

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Application Western blot
Sample Mouse Cell lysate - whole cell (3T3)
Gel Running Conditions Reduced Denaturing (12% Bis tris)
Loading amount 50 µg
Specification 3T3
Blocking step Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 25°C

Abcam user community

Verified customer

Submitted Nov 30 2015

Application IHC - Wholemount
Sample Zebrafish Embryo (wholemount)
Specification wholemount

Abcam user community

Verified customer

Submitted Dec 04 2013

Abcam guarantees this product to work in the species/application used in this Abreview.
Application Western blot
Loading amount 30 µg
Gel Running Conditions Reduced Denaturing (gel 11%)
Sample Human Cell lysate - whole cell (ovarian cancer cell line SKOV3)
Specification ovarian cancer cell line SKOV3
Blocking step blocking One (Nacalai Tesque) as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 100% · Temperature: 27°C

senn wakahashi

Verified customer

Submitted Jul 08 2013

Thank you for your updates.

I am very sorry to hear that the customer is not satisfied with the staining.

I can certainly offer either a new vial as a free of charge replacement or a credit note which can be used for future purchase...

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Thank you for your response.

After reading through the detailed protocol you kindly forwarded to Abcam, I would make some comments:

1) Image: Could you please save the image as a jpeg file and send it back to us.

2) Antige...

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Application Western blot
Sample Mouse Cell lysate - whole cell (NMuMG)
Loading amount 75 µg
Specification NMuMG
Gel Running Conditions Reduced Denaturing (12)
Blocking step BSA as blocking agent for 2 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: RT°C

Abcam user community

Verified customer

Submitted Dec 19 2012

Thank you for kindly confirming these details as this enables us to closely monitor the quality of our products

I would be pleased to arrange a replacement product free of charge. I have added a vial of ab50887 to your next order.

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Thank you for taking time to provide that information and for contacting us with this problem. I am sorry to hear this antibody hasnotbeen providing satisfactory results.

The details provided will enable us to investigate this case and will ...

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Thank you for contacting me and for keeping me updated about the results with the Tbx1 and Twist antibodies. I'm sorry to hear that the results are not good at this point, but please let me know if there is anything I can do to help in that situation. ...

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