DDAH, a dimethylarginine dimethylaminohydrolase, hydrolyzes dimethyl arginine (ADMA) and monomethyl arginine (MMA), both inhibitors of nitric oxide synthases, and may be involved in in-vivo modulation of nitric oxide production. Impairment of DDAH causes ADMA accumulation and a reduction in cGMP generation. DDAH II, the predominant DDAH isoform in endothelial cells, facilitates the induction of nitric oxide synthesis by all-trans-Retinoic acid (atRA). DDAH proteins are highly expressed in colon, kidney, stomach and liver tissues.
Background References
1. Wang H et al. DDAH1 plays dual roles in PM2.5 induced cell death in A549 cells. Biochim Biophys Acta 1860:2793-801 (2016).
2. Jung CS et al. Endogenous nitric-oxide synthase inhibitor ADMA after acute brain injury. Int J Mol Sci 15:4088-103 (2014).
Sequence Similarity
Belongs to the DDAH family.
Tissue Specificity
Detected in brain, liver, kidney and pancreas, and at low levels in skeletal muscle.
Western blot analysis of DDAH1 on different lysates with Rabbit anti-DDAH1 antibody (ET1705-71) at 1/5,000 dilution.
Lane 1: HAP1-parental cell lysate Lane 2: HAP1-DDAH1 KD cell lysate
Lysates/proteins at 10 µg/Lane.
Predicted band size: 31 kDa Observed band size: 37 kDa
Exposure time: 20 seconds; ECL: K1801;
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 (ET1705-71) at 1/5,000 dilution was used in K1803 at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
Western blot analysis of DDAH1 on different lysates with Rabbit anti-DDAH1 antibody (ET1705-71) at 1/5,000 dilution.
Lane 1: SH-SY5Y cell lysate Lane 2: HepG2 cell lysate Lane 3: HUVEC cell lysate
Lysates/proteins at 20 µg/Lane.
Predicted band size: 31 kDa Observed band size: 37 kDa
Exposure time: 10 seconds; ECL: K1801;
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 (ET1705-71) at 1/5,000 dilution was used in primary antibody dilution (K1803) at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
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