• FormLiquid
  • Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
  • Storage bufferPreservative: 0.02% Sodium Azide
    Constituents: 0.5% BSA, Tris buffered saline, pH 7.3
  • Concentration information loading...
  • PurityImmunogen affinity purified
  • Purification notesPurified from goat serum by ammonium sulphate precipitation followed by antigen affinity chromatography using the immunizing peptide.
  • ClonalityPolyclonal
  • IsotypeIgG
  • Research areas


Our Abpromise guarantee covers the use of ab2231 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 Use a concentration of 10 µg/ml. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
ICC/IF Use a concentration of 5 µg/ml.
IHC-Fr Use at an assay dependent concentration. PubMed: 24663083
WB Use a concentration of 0.1 - 0.3 µg/ml. Detects a band of approximately 35 kDa (predicted molecular weight: 31 kDa).Can be blocked with Human DDAH1 peptide (ab99047).


  • FunctionHydrolyzes N(G),N(G)-dimethyl-L-arginine (ADMA) and N(G)-monomethyl-L-arginine (MMA) which act as inhibitors of NOS. Has therefore a role in the regulation of nitric oxide generation.
  • Tissue specificityDetected in brain, liver, kidney and pancreas, and at low levels in skeletal muscle.
  • Sequence similaritiesBelongs to the DDAH family.
  • Information by UniProt
  • Database links
  • Alternative names
    • DDAH antibody
    • DDAH I antibody
    • DDAH-1 antibody
    • DDAH1 antibody
    • DDAH1_HUMAN antibody
    • DDAHI antibody
    • Dimethylargininase 1 antibody
    • Dimethylargininase-1 antibody
    • Dimethylarginine dimethylaminohydrolase 1 antibody
    • N(G) antibody
    • N(G)-dimethylarginine dimethylaminohydrolase 1 antibody
    • NG NG dimethylarginine dimethylaminohydrolase antibody
    see all

Anti-DDAH1 antibody images

  • Anti-DDAH1 antibody (ab2231) at 0.10000000149 µg/ml + Human kidney lysate at 35 µg

    Predicted band size : 31 kDa
  • ICC/IF image of ab2231 stained HeLa cells. The cells were 4% formaldehyde fixed (10 min) and then incubated in 1%BSA / 10% normal donkey serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab2231, 5µg/ml) overnight at +4°C. The secondary antibody (green) was Alexa Fluor® 488 donkey anti-goat IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

  • IHC image of ab2231 staining in human normal kidney formalin fixed paraffin embedded tissue section, performed on a Leica BondTM system using the standard protocol B. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with ab2231, 10µg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.

    For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.

References for Anti-DDAH1 antibody (ab2231)

This product has been referenced in:
  • Jung CS  et al. Endogenous nitric-oxide synthase inhibitor ADMA after acute brain injury. Int J Mol Sci 15:4088-103 (2014). IHC-Fr ; Rat . Read more (PubMed: 24663083) »
  • Ghebremariam YT  et al. FXR agonist INT-747 upregulates DDAH expression and enhances insulin sensitivity in high-salt fed Dahl rats. PLoS One 8:e60653 (2013). WB ; Rat . Read more (PubMed: 23593273) »

See all 7 Publications for this product

Product Wall

Application Western blot
Sample Mouse Tissue lysate - whole (Brain (Hippocampus))
Gel Running Conditions Reduced Denaturing
Loading amount 10 µg
Specification Brain (Hippocampus)
Blocking step Milk as blocking agent for 18 hour(s) and 0 minute(s) · Concentration: 3% · Temperature: 4°C

圭一 角山

Verified customer

Submitted Nov 25 2015

Application Western blot
Sample Mouse Tissue lysate - whole (hippocampus)
Loading amount 5 µg
Specification hippocampus
Gel Running Conditions Reduced Denaturing (12%)
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 Sep 09 2010

Abcam guarantees this product to work in the species/application used in this Abreview.
Application Western blot
Sample Rat Tissue lysate - whole (Hippocampus lysate)
Loading amount 40 µg
Specification Hippocampus lysate
Gel Running Conditions Reduced Denaturing (12% gel)
Blocking step Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 21°C

Mr. Richard D'Mello

Verified customer

Submitted Apr 14 2009

According to the datasheet, this antibody is thought to run at 40kDa due glycosylation. It could be that the protein is running at 32kDa in their experiments as the protein in their system is not glycosylated. However, I am concerned that their negativ...

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