NGS library preparation
DNA and RNA isolation
Storage and data analysis
Inherited disorders
HLA-typing
Modular library preparation
DNA and RNA isolation
Inherited disorders test systems
HLA-typing test system
Servers for genomic data
⠀⠀⠀⠀Test system for detecting genetic variants in 34 genes associated with amino acid and vitamin B metabolism disorders using next-generation sequencing (NGS).
⠀⠀⠀⠀Contains library preparation reagents and access to VariFind™ Software for data analysis.

VariFind™ METAB (AAVB) assay

For research use only
Complete turnkey solution
Library preparation reagents

VariFind™ Software
Product highlights
High sensitivity and specificity
The solution is validated against samples from the National Institute of Standards and Technology (USA); the bioinformatics pipeline is validated in accordance with the recommendations of the Association for Molecular Pathology (USA).
Does not require bioinformatician
Fully automatic analysis and data quality assessment, including contamination control and sample sex determination in VariFind™ software.
Simple and fast interpretation
Proprietary mutation base annotated according to standards published by the American College of Medical Genetics and Genomics (ACMG). Links to external sources of annotation such as ClinVar, dbSNP and gnomAD databases. Ability to request a qualified annotation of a discovered new variant.
Specifications 
 Genes and associated diseases 
Description
⠀⠀⠀⠀Although hundreds of congenital metabolic disorders have been described to date, most of these are rare. However, taken together, metabolic disorders account for a significant proportion of morbidity and mortality from genetic disorders. According to conservative studies, the incidence of metabolic disorders is approximately 1 in every 2500 births, comprising 10% of all monogenic disorders in children. Moreover, different alleles of genes encoding enzymes can alter the risk factor associated with many common diseases such as diabetes, heart disease, stroke, and cancer.


⠀⠀⠀⠀Amino acid and vitamin B metabolism disorders are considered rare hereditary diseases. Along with the possible pathogenic genetic variants (mutations) that cause them, however, they remain poorly studied. The use of high-throughput sequencing allows the identification of already known and novel variants in all coding regions of linked genes. Detection of mutant variants in a child or the positive carrier status of parents allows genetic counselling for further diagnostics or reproductive manipulations.
Gene
Associated diseases
ABCD4
Methylmalonic aciduria and homocystinuria, cblJ type
ACSF3
Combined malonic and methylmalonic aciduria
AMN
Megaloblastic anemia-1, Norwegian type
CBS
Homocystinuria, B6-responsive and nonresponsive types
CD320
Methylmalonic aciduria, transient, due to transcobalamin receptor defect
CUBN
Megaloblastic anemia-1, Finnish type
DHFR
Megaloblastic anemia due to dihydrofolate reductase deficiency
FUT2
Vitamin B12 plasma level QTL1
GIF
Intrinsic factor deficiency
HCFC1
Mental retardation, X-linked 3 (methylmalonic acidemia and homocysteinemia, cblX type )
LMBRD1
Methylmalonic aciduria and homocystinuria, cblF type
MAT1A
Hypermethioninemia, persistent, autosomal dominant, due to methionine adenosyltransferase I/III deficiency
MCEE
Methylmalonyl-CoA epimerase deficiency
MMAA
Methylmalonic aciduria, vitamin B12-responsive
MMACHC
Methylmalonic aciduria and homocystinuria, cblC type
MMADHC
Methylmalonic aciduria and homocystinuria, cblD type
MTHFD1
Combined immunodeficiency and megaloblastic anemia with or without hyperhomocysteinemia
MTHFR
Homocystinuria due to MTHFR deficiency
MTR
Homocystinuria-megaloblastic anemia, cblG complementation type
MTRR
Homocystinuria-megaloblastic anemia, cbl E type
MUT
Methylmalonic aciduria, mut(0) type
PCCA
Propionicacidemia
PCCB
Propionicacidemia
PRDX1
Methylmalonic aciduria and homocystinuria, cblC type, digenic
SLC19A2
Thiamine-responsive megaloblastic anemia syndrome
SLC46A1
Folate malabsorption, hereditary
SUCLA2
Mitochondrial DNA depletion syndrome 5 (encephalomyopathic with or without methylmalonic aciduria)
SUCLG1
Mitochondrial DNA depletion syndrome 9 (encephalomyopathic type with methylmalonic aciduria)
TCN1
Transcobalamin deficiency
TCN2
Transcobalamin II deficiency
ММAВ
Methylmalonic aciduria, vitamin B12-responsive, due to defect in synthesis of adenosylcobalamin, cblB complementatio type
Features
Specifications
Number of genes
34
Analyzed regions
Target regions include coding DNA sequences (CDSs)
Limitations
The kit is not intended for detection of CNV, extended STR and homopolymer variants
Analyte
DNA isolated from peripheral blood, dry blood spots, or buccal epithelium (saliva)
Number of amplicons
562 (2 pools)
Sequencing regions length, b.p.

157 769

Biological identifier (BID)*
Included
Time to results
from 26 to 34 hours
Compatible platforms
Illumina and Thermo Fisher Scientific
Target enrichment
Multiplex PCR
Recommended number of reads per sample

281 000

Read length, b.p.
300 п.н.
Ordering information
VariFind™ METAB (AAVB) assay, 24 reactions
Cat. No. VF-MBAAVB-24EN
Contents: reagent kit for targeted amplification and library preparation, access to VariFind™ Software.
Additionally required: VariFind MultiOligos platform-specific adapters and indexes.
VariFind™ METAB (AAVB) assay, 48 reactions
Cat. No. VF-MBAAVB-48EN
Contents: reagent kit for targeted amplification and library preparation, access to VariFind™ Software.
Additionally required: VariFind MultiOligos platform-specific adapters and indexes.
Related products
VariFind™ MultiOligos IT Platform
Barcoded adapter and universal primer kits for Thermo Fisher Scientific platforms in test tubes. Compatible with all VariFind™ test systems