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D3287
Deoxyribonucleic acid, single stranded from human placenta
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About This Item
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grade
Molecular Biology
description
For hybridization
form
solution
mol wt
(Fragments from 587-831 bp.)
solubility
water: 9-12 mg/mL
storage temp.
−20°C
InChI
1S/C15H31N3O13P2/c16-13-1-7(20)11(28-13)5-25-32(21,22)31-9-3-15(18)29-12(9)6-26-33(23,24)30-8-2-14(17)27-10(8)4-19/h7-15,19-20H,1-6,16-18H2,(H,21,22)(H,23,24)
InChI key
AWBASQCACWFTGD-UHFFFAOYSA-N
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This Item | D3160 | D3035 | D8259 |
|---|---|---|---|
| grade for molecular biology | grade for molecular biology | grade for molecular biology | grade - |
| form solution | form buffered aqueous solution | form buffered aqueous solution | form solid |
| solubility water: 9-12 mg/mL | solubility - | solubility - | solubility - |
| storage temp. −20°C | storage temp. −20°C | storage temp. −20°C | storage temp. 2-8°C |
| mol wt (Fragments from 587-831 bp.) | mol wt - | mol wt - | mol wt - |
| description For hybridization | description - | description - | description - |
General description
Human placental DNA is isolated from donor placenta, but will contain some maternal DNA. The DNA fragments are sonicated to produce fragments of consistent size.
Application
Many factors contribute to the signal-to-noise ratio in nucleic acid hybridizations. These factors include the presence of solvent (formamide), hybridization temperature, length of hybridization, volume of hybridization solution, degree and method of agitation, use of blocking reagents, concentration and specific activity of the probe, use of molecular agents to increase the rate of nucleic acid reassociation, and the degree of stringency used during the washing of the membrane.
In order to decrease any non-specific hybridization of the probe to a substrate, blocking agents must be used. Generally, a combination of blocking reagent, detergent, and denatured, fragmented DNA is used to accomplish this. Sigma offers sonicated, denatured DNA from a variety of species for use as a blocking agent in Northern and Southern blotting and other nucleic acid hybridization techniques.
In order to decrease any non-specific hybridization of the probe to a substrate, blocking agents must be used. Generally, a combination of blocking reagent, detergent, and denatured, fragmented DNA is used to accomplish this. Sigma offers sonicated, denatured DNA from a variety of species for use as a blocking agent in Northern and Southern blotting and other nucleic acid hybridization techniques.
Features and Benefits
• High quality human DNA.
• DNA fragments of defined sizes.
• DNA fragments of defined sizes.
Components
DNA is supplied in a solution of 100mM phosphate buffer. This is a ready to use concentrated solution
of 9-12 mg/ml DNA in 100mM phosphate buffer. However, it will reanneal on standing at room temperature so it is recommended to boil the solution for 10 minutes and then cool on ice for at least 5 minutes prior to use. Cooling on ice will
reduce the chances for reannealing, as it is more likely to reanneal if cooled at room temperature.
of 9-12 mg/ml DNA in 100mM phosphate buffer. However, it will reanneal on standing at room temperature so it is recommended to boil the solution for 10 minutes and then cool on ice for at least 5 minutes prior to use. Cooling on ice will
reduce the chances for reannealing, as it is more likely to reanneal if cooled at room temperature.
related product
Product No.
Description
Pricing
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Regulatory Information
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Mark F Evans et al.
BMC clinical pathology, 3(1), 2-2 (2003-06-13)
BACKGROUND: Over the past five years in situ hybridization techniques employing tyramide amplification reagents have been developed and promise the potential detection of low/single-copy nucleic acid sequences. However the increased sensitivity that tyramide amplification brings about may also lead to
H J Chen et al.
Chemical research in toxicology, 12(12), 1119-1126 (1999-12-22)
Exocyclic DNA adducts have been reported to derive from various exogenous as well as endogenous sources, such as lipid peroxidation. Among them, 1,N(6)-ethenoadenine (epsilonAde) has previously been detected in tissue DNA of untreated rodents and humans by an immunoaffinity/(32)P-postlabeling method.
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Technology Evaluation Center Assessment Program. Executive summary, 27(10), 1-6 (2013-07-23)
Yong S Joe et al.
Journal of nanoscience and nanotechnology, 13(6), 3889-3896 (2013-07-19)
We utilize a two-dimensional four-channel DNA model, with a tight-binding (TB) Hamiltonian, and investigate the temperature and the magnetic field dependence of the transport behavior of a short DNA molecule. Random variation of the hopping integrals due to the thermal
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