GeneAb™ LMO2

Description

African Swine Fever Virus (ASFV) is a widespread disease which infects members of the pig family(Suidae). Anumberoftick species are believed to be the vector for the disease,as well as being transmitted by raw pork and pig excrement [1]. After firstly being identified in Kenya in 1921, ASFV became endemic in sub-Saharan Africa, with regular outbreaks being reported across Europe, Asia and South America throughout the century [2]. More recently the virus was introduced in Georgia and spread throughout the region, as well as mass outbreaks occurring in China in 2018 [3].
ASFVistheonlymemberoftheAsfaridaefamily.ItisalargeenvelopeddoublestrandedDNA virus of icosahedral morphology with an average diameter of 200nm and isolates contain genomes between 170-190Kbp encoding for up to 167 open reading frames [2]. The morphology of ASFV consist of several concentric domains. An inner core contains the nucleoid coated with a thick protein layered core shell, which is surrounded by an inner lipid envelope , all of which is encompassed by the capsid [2]. ASFV begins its replication cycle in the nucleus of infected cells before moving to the cytoplasm where the majority of the replication takes place [2]. Gene transcription is highly regulated, with distinct classes of mRNA identified to accumulate at early, intermediate and late transcripts of the virus [2]. The disease induces acute haemorrhagic disease within its hosts, causing high fevers and skin haemorrhages, with death often occurring within ten days of clinical symptoms appearing [4].

References: 1: The Centre for Food Security and Public Health (2015), African Swine Fever. 2: Galindo, I. and Alonso, C., 2017. African swine fever virus: a review. Viruses, 9(5), p.103. 3: Zhou, X., Li, N., Luo, Y., Liu, Y., Miao, F., Chen, T., Zhang, S., Cao, P., Li, X., Tian, K. and Qiu, H.J., 2018. Emergence of African swine fever in China, 2018. Transboundary and emerging diseases, 65(6), pp.1482-1484. 4: Gallardo, C., Ademun, A.R., Nieto, R., Nantima, N., Arias, M., Martín, E., Pelayo, V. and Bishop, R.P., 2011. Genotyping of African swine fever virus (ASFV) isolates associated with disease outbreaks in Uganda in 2007. African Journal of biotechnology, 10(17), pp.3488-3497.

Exceptional value for money
Rapid detection of all clinically relevant subtypes
Positive copy number standard curve for quantification
Highly specific detection profile
High priming efficiency
Broad dynamic detection range (>6 logs)
Sensitive to < 100 copies of target Accurate controls to confirm findings

Introduction

Usages:
For selective isolation of Gram-negative bacteria, especially for Shigella and Salmonella.

Principle:
Yeast extract powder provide nitrogen, vitamins, growth factors; sodium chloride to maintain osmotic equilibrium ferric ammonium citrate of iron salts to produce a black iron sulfide; agar as medium coagulant; phenol red as pH indicator.

Formulation（per liter）:
Xylose 3.50g
L-Lysine 5.00g
Lactose 7.50g
Sucrose 7.50 g
Sodium Chloride 5.00 g
Yeast Extract 3.00g
Sodium Desoxycholate 2.50g
Sodium Thiosulphate 6.80g
Fe-Ammonium Citrate 0.80g
Phenol Red 0.08g
Agar 13.50
Final PH 7.4±0.2    

How to use:
1.Suspend 55.2g in 1Lof distilled or deionized water. Heat with frequent agitation and boil to completely dissolve the powder. Do not autoclave ,cool to 50℃ and pour into sterile petri dishes.
2.Dilluted and treated samples.

Quality control:
Quality control strains were inoculated ,and cultured at 36 ± 1 ℃ for 24h ,results show as follows:
strain name              strain code            growth           feature
Arizona bacteria       CMCC (B) 47001          good            black colonies
Salmonella typhimurium CMCC (B) 50115          good            black colonies
Streptococcus faecalis    CMCC32223            prohibited         —        

Storage: Store in a dark, cool and dry place, tighten the cap immediately after use. Storage period of three years.

Specifications: 250g/bottle

250g

Product Description

Isothermal PCR Kit – High Sensitivity & Specificity, 14 Months Storage

Product Detail

Kit Storage and term of Validity

Storage term: stored at ≤-20℃,keep away from light, avoid heavy weight and repeated freezing and thawing.

Term of Validity: 14 months

Isothermal nucleic acid Principle Summary

This kit is based on a rapid nucleic acid amplification technology at room temperature and constant temperature: at room temperature and constant temperature (generally 39 ºC~42 ºC), reverse transcriptase uses specific primers and template RNA to synthesize cDNA strands, and binds the auxiliary protein and single strand With the help of the protein, the recombinase and the primer form a complex; perform a homology search and bind the target homology domain, at this time a D-loop region is formed at the homology position and strand exchange begins; accompanied by the recombinase from the complex Upon dissociation, the polymerase also binds to the 3′ end of the primer, initiating chain extension. Relying on the action of nfo enzyme, adding specific molecular probes designed according to the template, and using colloidal gold technology (sandwich method) can detect the final result.

Isothermal nucleic acid Product Features

1/ High sensitivity and specificity, short reaction time.

2/ The reagent form is freeze-dried, stable and easy to operate.

3/ The reaction can be operated by metal bath and water bath pot without purchasing expensive PCR apparatus.

Technical Parameters:

Isothermal nucleic acid Applications

Suitable for RNA isothermal rapid amplification kit(NFO type)

Primer: Require pair of nucleotide primers with the length of 25-35 bp.

RNA NFO kit reaction temperature is 39 to 42℃ and time is 5-20 minutes.

Notes

1/ Please avoid nucleic acid contamination and set blank control during reaction due to the high sensitivity of the kit.

2/ Please take out the required quantity of MIRA reaction units for the experiment, and put the rest under storage conditions when performing the experiment.