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Entamoeba dispar Brumpt
Entamoeba dispar Brumpt
规格:
货期:
编号:TS176366
品牌:Testobio
产品名称： Entamoeba dispar Brumpt
商品货号： TS176366
Strain Designations： SAW 760
Biosafety Level： 1

Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.
Isolation： Monoxenic strain established at NIH, Bethesda, MD in 1994; derived from a bacterized strain isolated from adult human male, England, 1979; the bacterized strain was obtained from PG Sargeaunt, London School of Tropical Medicine and Hygiene.
Product Format： test tube
Storage Conditions： Frozen Cultures:
-70°C for 1 week; liquid N2 vapor for long term storage

Freeze-dried Cultures:
2-8°C

Live Cultures:
See Protocols section for handling information
Type Strain： no
Genome Sequenced Strain：

Yes

Comments：
TS176366 replaces the previous ATCC 50484 accession.
TS176366 grows in the presence of Crithidia fasciculata ATCC 50083.
Genome sequencing strain (The Institute for Genomic Research)
Medium： ATCC® Medium 2692: Modified LYI Entamoeba Medium
Growth Conditions：
Temperature: 35°C
Atmosphere: Microaerophilic
Culture System: Monoxenic with Crithidia fasciculata (ATCC 50083)
Cryopreservation： Reagents
CPMB-5 Cryoprotective Solution
DMSO, 1.0 mL
2.5 M Sucrose, 0.8 mL
L-Cysteine/Ascorbic Acid Solution, 0.2 mL
CPMB-2 Basal Solution, 6.0 mL
HIBS, 2.0 mL

CPMB-2 Basal Solution
Yeast Extract, 60.0 g
K2HPO4, 1.0 g
KH2PO4, 0.6 g
NaCl, 2.0 g
Distilled water, 1.0 L
Autoclave for 15 minutes.

L-Cysteine/Ascorbic Acid Solution
L-Cysteine-HCL, 1.0 g
Acorbic Acid, 0.1 g
Distilled water, 10.0 mL
Add 9.0 mL of distilled water to a 20 mL beaker and dissolve the first two components.xa0 While stirring, adjust the pH to 7.2 with 10N NaOH (approximately 0.7 mL).xa0 Adjust final volume to 10 mL with distilled water and filter sterilize. Solution should be used soon after preparation.xa0 Discard any unused solution.

Harvest and Preservation
  1. Harvest cells from several cultures that are in the late logarithmic to early stationary phase of growth.xa0 Place culture vessels on ice for 10 min.
  2. Invert tubes 20 times and centrifuge at 200 x g for 5 min.xa0xa0xa0xa0xa0xa0xa0xa0
  3. While cells are centrifuging, prepare the cryoprotective solution.xa0
    1. Place 1.0 mL of DMSO in a 16 x 125 mm screw-capped test tube and ice until solidified.
    2. Add 0.8 mL of the 2.5 M Sucrose solution, remove from ice and invert until the DMSO is liquefied.xa0 Return to ice bath.
    3. Add 0.2 mL of the L-Cysteine/Ascorbic Acid Solution to the DMSO solution and mix.
    4. Add 6.0 mL of the CPMB-2 Basal Solution and mix.
    5. Add 2.0 mL HIBS and mix.
  4. Resuspend the cell pellets and pool to a final volume of approximately 10 mL with the supernatant.xa0 Make a determination of the cell density and adjust the concentration of the cells between 5 x 105/mL - 1 x 106/mL using fresh medium.xa0 If the cell concentration is below 5 x 105/mL, centrifuge the cell suspension and resuspend the pellet in a volume that will yield the desired concentration.
  5. After the cell concentration is adjusted, centrifuge as in step 2.
  6. Remove as much supernatant as possible and determine the volume removed.
  7. Resuspend the cell pellet with a volume of the cryoprotective solution equal to the volume of the supernatant removed.xa0 Invert the tube several times to obtain a uniform cell density.
  8. Dispense 0.5 mL aliquots into 1.0 - 2.0 mL plastic sterile cryules (special plastic vials for cryopreservation).
  9. Place the vials in a controlled rate freezing unit.xa0 Use the following cooling cycle: From room temperature cool at -10°C/min to the heat of fusion; from the heat of fusion toxa0-40°C, cool at -1°C/min.xa0xa0 At -40°C plunge into liquid nitrogen.xa0 The cooling cycle should be initiated no less than 15 and no more than 30 minutes after the addition of DMSO to the cell preparation.
  10. Store ampules in a liquid nitrogen refrigerator until needed.
  11. To establish a culture from the frozen state, place an ampule in a 35°C water bath, until thawed (2-3 min).xa0 Immerse the vial just sufficiently to cover the frozen material.xa0 Do not agitate the ampule.
  12. Transfer contents of thawed ampule to a 16 x 125 mm screw-capped borosilicate glass test tube containing 12 mL of ATCC medium 2692 and 1 mL from a growing culture of Crithidia fasciculata.
  13. Screw cap on tightly and incubate at a 15° horizontal slant at 35°C.xa0 Observe the culture daily and transfer when many trophozoites are observed. xa0xa0
Name of Depositor： CG Clark
Year of Origin： 1994
References：

Clark CG, Diamond LS. Intraspecific variation and phylogenetic relationships in the genus Entamoeba as revealed by riboprinting. J. Eukaryot. Microbiol. 44: 142-154, 1997. PubMed: 9109261

Cross References：

Nucleotide (GenBank) : AANV02000000 Entamoeba dispar SAW760, whole genome shotgun sequencing project.

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Entamoeba dispar Brumpt

  • 货号: TS176366
  • 好评
询价
  • 品牌 : TESTOBIO
产品名称： Entamoeba dispar Brumpt
商品货号： TS176366
Strain Designations： SAW 760
Biosafety Level： 1

Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.
Isolation： Monoxenic strain established at NIH, Bethesda, MD in 1994; derived from a bacterized strain isolated from adult human male, England, 1979; the bacterized strain was obtained from PG Sargeaunt, London School of Tropical Medicine and Hygiene.
Product Format： test tube
Storage Conditions： Frozen Cultures:
-70°C for 1 week; liquid N2 vapor for long term storage

Freeze-dried Cultures:
2-8°C

Live Cultures:
See Protocols section for handling information
Type Strain： no
Genome Sequenced Strain：

Yes

Comments：
TS176366 replaces the previous ATCC 50484 accession.
TS176366 grows in the presence of Crithidia fasciculata ATCC 50083.
Genome sequencing strain (The Institute for Genomic Research)
Medium： ATCC® Medium 2692: Modified LYI Entamoeba Medium
Growth Conditions：
Temperature: 35°C
Atmosphere: Microaerophilic
Culture System: Monoxenic with Crithidia fasciculata (ATCC 50083)
Cryopreservation： Reagents
CPMB-5 Cryoprotective Solution
DMSO, 1.0 mL
2.5 M Sucrose, 0.8 mL
L-Cysteine/Ascorbic Acid Solution, 0.2 mL
CPMB-2 Basal Solution, 6.0 mL
HIBS, 2.0 mL

CPMB-2 Basal Solution
Yeast Extract, 60.0 g
K2HPO4, 1.0 g
KH2PO4, 0.6 g
NaCl, 2.0 g
Distilled water, 1.0 L
Autoclave for 15 minutes.

L-Cysteine/Ascorbic Acid Solution
L-Cysteine-HCL, 1.0 g
Acorbic Acid, 0.1 g
Distilled water, 10.0 mL
Add 9.0 mL of distilled water to a 20 mL beaker and dissolve the first two components.xa0 While stirring, adjust the pH to 7.2 with 10N NaOH (approximately 0.7 mL).xa0 Adjust final volume to 10 mL with distilled water and filter sterilize. Solution should be used soon after preparation.xa0 Discard any unused solution.

Harvest and Preservation
  1. Harvest cells from several cultures that are in the late logarithmic to early stationary phase of growth.xa0 Place culture vessels on ice for 10 min.
  2. Invert tubes 20 times and centrifuge at 200 x g for 5 min.xa0xa0xa0xa0xa0xa0xa0xa0
  3. While cells are centrifuging, prepare the cryoprotective solution.xa0
    1. Place 1.0 mL of DMSO in a 16 x 125 mm screw-capped test tube and ice until solidified.
    2. Add 0.8 mL of the 2.5 M Sucrose solution, remove from ice and invert until the DMSO is liquefied.xa0 Return to ice bath.
    3. Add 0.2 mL of the L-Cysteine/Ascorbic Acid Solution to the DMSO solution and mix.
    4. Add 6.0 mL of the CPMB-2 Basal Solution and mix.
    5. Add 2.0 mL HIBS and mix.
  4. Resuspend the cell pellets and pool to a final volume of approximately 10 mL with the supernatant.xa0 Make a determination of the cell density and adjust the concentration of the cells between 5 x 105/mL - 1 x 106/mL using fresh medium.xa0 If the cell concentration is below 5 x 105/mL, centrifuge the cell suspension and resuspend the pellet in a volume that will yield the desired concentration.
  5. After the cell concentration is adjusted, centrifuge as in step 2.
  6. Remove as much supernatant as possible and determine the volume removed.
  7. Resuspend the cell pellet with a volume of the cryoprotective solution equal to the volume of the supernatant removed.xa0 Invert the tube several times to obtain a uniform cell density.
  8. Dispense 0.5 mL aliquots into 1.0 - 2.0 mL plastic sterile cryules (special plastic vials for cryopreservation).
  9. Place the vials in a controlled rate freezing unit.xa0 Use the following cooling cycle: From room temperature cool at -10°C/min to the heat of fusion; from the heat of fusion toxa0-40°C, cool at -1°C/min.xa0xa0 At -40°C plunge into liquid nitrogen.xa0 The cooling cycle should be initiated no less than 15 and no more than 30 minutes after the addition of DMSO to the cell preparation.
  10. Store ampules in a liquid nitrogen refrigerator until needed.
  11. To establish a culture from the frozen state, place an ampule in a 35°C water bath, until thawed (2-3 min).xa0 Immerse the vial just sufficiently to cover the frozen material.xa0 Do not agitate the ampule.
  12. Transfer contents of thawed ampule to a 16 x 125 mm screw-capped borosilicate glass test tube containing 12 mL of ATCC medium 2692 and 1 mL from a growing culture of Crithidia fasciculata.
  13. Screw cap on tightly and incubate at a 15° horizontal slant at 35°C.xa0 Observe the culture daily and transfer when many trophozoites are observed. xa0xa0
Name of Depositor： CG Clark
Year of Origin： 1994
References：

Clark CG, Diamond LS. Intraspecific variation and phylogenetic relationships in the genus Entamoeba as revealed by riboprinting. J. Eukaryot. Microbiol. 44: 142-154, 1997. PubMed: 9109261

Cross References：

Nucleotide (GenBank) : AANV02000000 Entamoeba dispar SAW760, whole genome shotgun sequencing project.

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