Human α-L-iduronidase,IDUA ELISA Kit

Instructions
Code CSB-E09455h
Size 96T,5×96T,10×96T
Trial Size 24T ELISA kits trial application
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Product Details

Target Name iduronidase, alpha-L-
Alternative Names IDUA ELISA Kit; Alpha-L-iduronidase ELISA Kit; EC 3.2.1.76 ELISA Kit
Abbreviation IDUA
Uniprot No. P35475
Species Homo sapiens (Human)
Sample Types serum, plasma, cell lysates, tissue homogenates
Detection Range 0.156 ng/mL-10 ng/mL
Sensitivity 0.039 ng/mL
Assay Time 1-5h
Sample Volume 50-100ul
Detection Wavelength 450 nm
Research Area Signal Transduction
Assay Principle quantitative
Measurement Sandwich
Precision
Intra-assay Precision (Precision within an assay): CV%<8%
Three samples of known concentration were tested twenty times on one plate to assess.
Inter-assay Precision (Precision between assays): CV%<10%
Three samples of known concentration were tested in twenty assays to assess.
Linearity
To assess the linearity of the assay, samples were spiked with high concentrations of human IDUA in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.
 SampleSerum(n=4)
1:1Average %88
Range %84-92
1:2Average %94
Range %90-98
1:4Average %99
Range %95-104
1:8Average %102
Range %96-108
Recovery
The recovery of human IDUA spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section.
Sample TypeAverage % RecoveryRange
Serum (n=5) 8993-96
EDTA plasma (n=4)10095-105
Typical Data
These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
ng/mlOD1OD2AverageCorrected
102.825 2.867 2.846 2.739
52.103 2.119 2.111 2.004
2.51.125 1.137 1.131 1.024
1.250.588 0.564 0.576 0.469
0.6250.378 0.356 0.367 0.260
0.3120.235 0.252 0.244 0.137
0.1560.191 0.182 0.187 0.080
00.109 0.105 0.107  
Troubleshooting
and FAQs
ELISA kit FAQs
Storage Store at 2-8°C. Please refer to protocol.
Lead Time 3-5 working days

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Target Data

Gene References into Functions
  1. Enzyme activities (acid alpha-glucosidase (GAA), galactocerebrosidase (GALC), glucocerebrosidase (GBA), alpha-galactosidase A (GLA), alpha-iduronidase (IDUA) and sphingomyeline phosphodiesterase-1 (SMPD-1)) were measured on ~43,000 de-identified dried blood spot (DBS) punches, and screen positive samples were submitted for DNA sequencing to obtain genotype confirmation of disease risk PMID: 27238910
  2. Using lysosomal storage disease mucopolysaccharidosis type I (MPS I) dogs tolerized to human IDUA as neonates, we evaluated intrathecal delivery of an adeno-associated virus serotype 9 vector expressing human IDUA as a therapy for the central nervous system manifestations of MPS PMID: 27386755
  3. IDUA deletion mutation is associate with with mucopolysaccharidosis type I . PMID: 28604952
  4. 10 unrelated Korean patients with Mucopolysaccharidosis I, p.L346R and c.704ins5 were most commonly found in Korean patients with Mucopolysaccharidosis I. PMID: 27520059
  5. Molecular studies results unveiled the predominance of(Pro533Arg) IDUA variation in a series of 13 Algerian patients with Mucopolysaccharidosis Type I presented mainly with an attenuated phenotype. PMID: 27196898
  6. A new IDUA variant that alters the structure of the signal peptide associated with mucopolysaccharidosis type I is reported. PMID: 25256405
  7. Amino acid substitutions in alpha-L-iduronidase determine the severity of mucopolysaccharidosis type I. PMID: 24480078
  8. The alpha-L-iduronidase missense mutation causing L238Q substitution, when paired with a nonsense mutation, is associated with significant, late-onset brain disease. PMID: 24368159
  9. We conclude that this procedure for determining residual IDUA activity in fibroblasts of MPS I patients may be helpful to predict MPS I phenotype. PMID: 23786846
  10. The IDUA structures and biochemical analysis of the disease-relevant P533R mutation have enabled us to correlate the effects of mutations in IDUA to clinical phenotypes. PMID: 24036510
  11. Data show that alpha-l-iduronidase (hIDUA) enzyme activity was highly correlated with the N-glycan attached to N372. PMID: 23959878
  12. X-ray diffraction analysis of human alpha-L-iduronidase PMID: 23143250
  13. Transfer of a high level of human alpha-L-iduronidase gene into the central nervous system (CNS) of MPS I mutant mice susceptible to mucopolysaccharidosis (MPS) improves the outcome for MPS when a high level of CNS gene expression is achieved. PMID: 21397026
  14. A previously unreported IDUA splice site mutation (NG_008103.1:g.21632G>C; NM_000203.3:c.1727+3G>C) causing a Hurler phenotype in a patient heterozygous for the common p.Q70X (NG_008103.1:g.5862C>T) mutation. PMID: 21831683
  15. This paper, showed a heterogeneous pattern of mutations and polymorphisms in the IDUA gene among Tunisian patients. PMID: 21521498
  16. this study characterized the underlying IDUA mutations in a group of 102 newly studied European patients, including 37 Italians, whose condition has been clinically and biochemically diagnosed as MPS I. PMID: 21394825
  17. The identification of two novel alpha-L-iduronidase mutations should facilitate prenatal diagnosis and counseling for MPS I in Tunisia. PMID: 21639919
  18. study describes monozygotic twins with an attenuated form of mucopolysaccharidosis type I associated with a novel mutation of IDUA, who both showed cervical myelopathy as the initial and cardinal manifestation PMID: 21176924
  19. This study reports a novel mutation in IDUA, expanding the mutational spectrum for mucopolysaccharidosis type I. PMID: 21364962
  20. Studies show that mouse Idua-W392X mutation is analogous to the human IDUA-W402X mutation commonly found in MPS I-H patients. PMID: 19751987
  21. This is the first report of IDUA mutations in Egyptian patients with mucopolysaccharidosis type I. PMID: 19839758
  22. Results show that leukocyte IDUA from mucopolysaccharidosis I heterozygotes differs from the normal enzyme in terms of optimum pH, Km, Vmax and thermostability at 50 degrees C. PMID: 11825626
  23. Ninety percent of the MPS I patients in this study were genotyped and revealed 10 recurrent and thirteen novel IDUA gene mutations. PMID: 12559846
  24. 6 new mutations, c.1087C>T (p.R363C), c.1804T>A (p.F602I), c.793G>C, c.712T>A (p.L238Q), c.1727+2T>A, & c.1269C>G (p.S423R), in a total of 14 different mutations, & 13 polymorphisms , including the new c.246C>G (p.H82Q), were found in 10 MPS I pts. PMID: 15300847
  25. Model provides insights into why certain point mutations produce misfolded proteins and lead to severe mucopolysaccharidosis I, while other mutations produce proteins with minor structural perturbations and therefore the attenuated form of the disease. PMID: 15862278
  26. analysis of Alpha-L-Iduronidase mutations in Mucopolysaccharidosis I in Tunisia PMID: 16435195
  27. Describe a cohort of 14 Hurler-Scheie patients homozygous for the p.Leu490Pro missense mutation in the alpha-L-iduronidase gene. PMID: 17570076
  28. Analysis of the structural change in alpha-L-iduronidase of the severe mucopolysaccharidosis type I (MPS I) group and that of the attenuated disease, except for a couple of mutations, can help to predict the clinical outcome of MPS I. PMID: 18340403
  29. Mutations in the 130 C-terminal amino acids lead to clinical manifestations of Mucopolysaccharidosis type I , which indicates a functional importance of the C-terminus of the IDUA protein. PMID: 19396826

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Involvement in disease Mucopolysaccharidosis 1H (MPS1H); Mucopolysaccharidosis 1H/S (MPS1H/S); Mucopolysaccharidosis 1S (MPS1S)
Subcellular Location Lysosome
Protein Families Glycosyl hydrolase 39 family
Tissue Specificity Ubiquitous.
Database Links

HGNC: 5391

OMIM: 252800

KEGG: hsa:3425

STRING: 9606.ENSP00000247933

UniGene: Hs.89560

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