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Advanced Williams’ E Medium
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box_shadow_style="" z_index_subgroup="regular" z_index="" z_index_hover="" overflow="" background_type="single" gradient_start_color="" gradient_end_color="" gradient_start_position="0" gradient_end_position="100" gradient_type="linear" radial_direction="center center" linear_angle="180" background_color="" background_image="" background_image_id="" lazy_load="none" skip_lazy_load="" background_position="left top" background_repeat="no-repeat" background_blend_mode="none" render_logics="" sticky="off" sticky_devices="small-visibility,medium-visibility,large-visibility" sticky_offset="" absolute="off" absolute_props="" filter_type="regular" filter_hover_element="self" filter_hue="0" filter_saturation="100" filter_brightness="100" filter_contrast="100" filter_invert="0" filter_sepia="0" filter_opacity="100" filter_blur="0" filter_hue_hover="0" filter_saturation_hover="100" filter_brightness_hover="100" filter_contrast_hover="100" filter_invert_hover="0" filter_sepia_hover="0" filter_opacity_hover="100" filter_blur_hover="0" transform_type="regular" transform_hover_element="self" transform_scale_x="1" transform_scale_y="1" transform_translate_x="0" transform_translate_y="0" transform_rotate="0" transform_skew_x="0" transform_skew_y="0" transform_scale_x_hover="1" transform_scale_y_hover="1" transform_translate_x_hover="0" transform_translate_y_hover="0" transform_rotate_hover="0" transform_skew_x_hover="0" transform_skew_y_hover="0" transform_origin="" transition_duration="300" transition_easing="ease" transition_custom_easing="" animation_type="" animation_direction="left" animation_color="" animation_speed="0.3" animation_delay="0" animation_offset="" last="true" border_position="all" first="true"][fusion_text columns="" column_min_width="" column_spacing="" rule_style="" rule_size="" rule_color="" hue="" saturation="" lightness="" alpha="" content_alignment_medium="" content_alignment_small="" content_alignment="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" sticky_display="normal,sticky" class="" id="" margin_top="" margin_right="" margin_bottom="" margin_left="" fusion_font_family_text_font="" fusion_font_variant_text_font="" font_size="" line_height="" letter_spacing="" text_transform="" text_color="" animation_type="" animation_direction="left" animation_color="" animation_speed="0.3" animation_delay="0" animation_offset=""]Advanced Williams’ E Medium
Background
PurMaTM Advanced Williams’ E Medium contains components that allow for a 60–90% reduction in FBS supplementation. More importantly, using synthetic components such as recombinant insulin, albumin, and transferrin increases consistency. This results in less variation amongst lot-to-lot serum changes. In A-Williams’ E, L-Alanyl-L-Glutamine is used as the source of glutamine. Additionally, reducing FBS requirements lowers the cost of cell culture experiments.Contents
Advanced Williams’ E Contains:
- includes all twenty essential and non-essential amino acids with higher concentrations than regular and MAX formulations.
- A-Williams’ E incorporates elements that significantly reduce the need for a serum for cell culture.
Crucial Ingredients:
- PurMaTM Human Transferrin (Holo): prevents Improper iron storage and delivery in cell culture systems which is a major contributor to oxidative stress and protein damage.
- PurMaTM Insulin Recombinant
- Trace of other elements which mimic the elements in fetal bovine serum.
Formulation
Complete formulation is available: Advanced Williams' E Medium FormulationReferences
- Isolation and long-term cell culture of epithelial-like cells from rat liver. Williams GM, et al. Exp Cell Res. 1971 Nov;69(1):106-12. doi: 10.1016/0014-4827(71)90316-8. PMID:
- Primary in vitro antibody responses by purified murine B lymphocytes in serum-free defined medium. Mosier DE. J Immunol. 1981 Oct;127(4):1490-3. PMID: 6792277
- Serum-free culture of rabbit meniscal fibrochondrocytes: proliferative response. Webber RJ, Zitaglio T, Hough AJ Jr. J Orthop Res. 1988;6(1):13-23. doi: 10.1002/jor.1100060103. PMID: 333473
Parameter Specification Appearance Red, clear liquid pH 7.2 ± 0.1 Osmolality 275-360 mOsm/L Endotoxin NMT< 2EU/mL Mycoplasma Negative Suitability Suitable for mammalian cell culture Additive Sodium pyruvate Indicator Phenol red Mycoplasma Detection Negative Sterility Tested Sterile filtered using 0.22 µm filter Form Liquid Shipping Condition Room temperature William’s E Medium
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box_shadow_style="" z_index_subgroup="regular" z_index="" z_index_hover="" overflow="" background_type="single" gradient_start_color="" gradient_end_color="" gradient_start_position="0" gradient_end_position="100" gradient_type="linear" radial_direction="center center" linear_angle="180" background_color="" background_image="" background_image_id="" lazy_load="none" skip_lazy_load="" background_position="left top" background_repeat="no-repeat" background_blend_mode="none" render_logics="" sticky="off" sticky_devices="small-visibility,medium-visibility,large-visibility" sticky_offset="" absolute="off" absolute_props="" filter_type="regular" filter_hover_element="self" filter_hue="0" filter_saturation="100" filter_brightness="100" filter_contrast="100" filter_invert="0" filter_sepia="0" filter_opacity="100" filter_blur="0" filter_hue_hover="0" filter_saturation_hover="100" filter_brightness_hover="100" filter_contrast_hover="100" filter_invert_hover="0" filter_sepia_hover="0" filter_opacity_hover="100" filter_blur_hover="0" transform_type="regular" transform_hover_element="self" transform_scale_x="1" transform_scale_y="1" transform_translate_x="0" transform_translate_y="0" transform_rotate="0" transform_skew_x="0" transform_skew_y="0" transform_scale_x_hover="1" transform_scale_y_hover="1" transform_translate_x_hover="0" transform_translate_y_hover="0" transform_rotate_hover="0" transform_skew_x_hover="0" transform_skew_y_hover="0" transform_origin="" transition_duration="300" transition_easing="ease" transition_custom_easing="" animation_type="" animation_direction="left" animation_color="" animation_speed="0.3" animation_delay="0" animation_offset="" last="true" border_position="all" first="true"][fusion_text columns="" column_min_width="" column_spacing="" rule_style="" rule_size="" rule_color="" hue="" saturation="" lightness="" alpha="" content_alignment_medium="" content_alignment_small="" content_alignment="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" sticky_display="normal,sticky" class="" id="" margin_top="" margin_right="" margin_bottom="" margin_left="" fusion_font_family_text_font="" fusion_font_variant_text_font="" font_size="" line_height="" letter_spacing="" text_transform="" text_color="" animation_type="" animation_direction="left" animation_color="" animation_speed="0.3" animation_delay="0" animation_offset=""]Williams′ Medium E
Background
Williams′ Medium E is a modification version of Williams′ Medium D by Williams and Gunn. Although, it is like MEM, but there is difference in glucose as well as amino acid contents. This media was originally used to isolate and culture primary liver epithelial cells from Epithelial-like cells of fibroblast-like cells culture. It has been shown that this medium is suited for longer term adult primary cell culture.PurMa™ William's E Medium is
- Suited for long term culture.
- Enriched in amino acids.
- Double the glucose compared to the original formulation.
- Moreover, contains unique ingredients, including zinc, iron, manganese, non-essential amino acids, the reducing agent glutathione as well as lipid methyl linoleate
Moreover, PurMa™ William's E Medium also contains:
- Low level of glucose (2.00 g/ liter). PurMa Biologics manufacturers the high glucose (4.5 g/L) version of this media as well (Cat #: P3S029880)
- Although the standard formulation contains 2.2 g/L Sodium bicarbonate, but PurMa Biologics manufacturers the high sodium bicarbonate (3.7 g/L) Williams′ Medium E as well (Cat #: P3S032880)
- 2 mM L-glutamine (292 mg/L)’
References
- Isolation and long-term cell culture of epithelial-like cells from rat liver. Williams GM, Weisburger et al. Exp Cell Res. 1971 Nov;69(1):106-12. doi: 10.1016/0014-4827(71)90316-8.
- Growth and continuous passage of COMMA-D mouse mammary epithelial cells in hormonally defined serum-free medium. Riss et al. Cancer Res. 1987 Jul 15;47(14):3776-82. PMID: 3297308.
Parameter Specification Appearance Red, clear liquid pH 7.2 ± 0.1 Osmolality 275-360 mOsm/L Endotoxin NMT< 2EU/mL Mycoplasma Negative Suitability Suitable for mammalian cell culture Additive Sodium pyruvate Indicator Phenol red Mycoplasma Detection Negative Sterility Tested Sterile filtered using 0.22 µm filter Form Liquid Shipping Condition Room temperature Williams’ E Medium – Max
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filter_opacity_hover="100" filter_blur_hover="0" transform_type="regular" transform_hover_element="self" transform_scale_x="1" transform_scale_y="1" transform_translate_x="0" transform_translate_y="0" transform_rotate="0" transform_skew_x="0" transform_skew_y="0" transform_scale_x_hover="1" transform_scale_y_hover="1" transform_translate_x_hover="0" transform_translate_y_hover="0" transform_rotate_hover="0" transform_skew_x_hover="0" transform_skew_y_hover="0" transform_origin="" transition_duration="300" transition_easing="ease" transition_custom_easing="" animation_type="" animation_direction="left" animation_color="" animation_speed="0.3" animation_delay="0" animation_offset="" last="true" border_position="all" first="true"][fusion_text columns="" column_min_width="" column_spacing="" rule_style="" rule_size="" rule_color="" hue="" saturation="" lightness="" alpha="" content_alignment_medium="" content_alignment_small="" content_alignment="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" sticky_display="normal,sticky" class="" id="" margin_top="" margin_right="" margin_bottom="" margin_left="" fusion_font_family_text_font="" fusion_font_variant_text_font="" font_size="" line_height="" letter_spacing="" text_transform="" text_color="" animation_type="" animation_direction="left" animation_color="" animation_speed="0.3" animation_delay="0" animation_offset=""]Williams' E Medium - Max
Background
Williams' E Medium - Max is a commonly used media for Mammalian cell culture.Advantages
The advantages of Williams' E Medium - Max over Williams' E Medium are:
- Higher PH Capacity
- Moreover, it contains 4 mM L-Alanyl-L-Glutamine (0.869 g/L) instead of L-Glutamine and therefore:
- Possess longer shelf life.
- More importantly, minimizes toxic ammonia build-up.
- Significantly improves cell viability and growth.
- Remains stable across a wide range of temperatures.
- Improves the culture of primary cells.
Mechanism
Although L-glutamine is a vital amino acid, it degrades, resulting in the generation of toxic ammonia and pyrrolidine carboxylic acid. One way to minimize L-glutamine degradation in media is to gradually add these amino acids to your cell culture. However, keeping track of time to keep the amount of L-glutamine at the same level is tedious, if not impossible. Alternatively, L-alanyl-L-glutamine can be used because it is much more stable in aqueous solutions. More importantly, it does not easily degrade and gradually releases aminopeptidases. As a result, L-glutamine and L-alanine are then used by the cells for protein production in the TCA cycle. In addition to our Max formulation products, we manufacture PurMaTM GluaSup (Cat# P3S210 559) is a combination of L-alanyl-L-glutamine which prevents degradation of L-glutamine.Contents
Williams' E Medium - Max contains:
- 5 mM sodium pyruvate
- High glucose (4.5g/L)
- Non-Essential Amino Acids
- 3.7 g/L Sodium Bicarbonate; PurMa Biologics Manufactures several types of William’s E Medium based on the amount of Sodium Bicarbonate and HEPES (PH capacity)
- Phenol Red
Formulation
For complete formulation click here: Williams' E Medium-MAX FormulationReferences
- Isolation and long-term cell culture of epithelial-like cells from rat liver. Williams GM, Weisburger EK, Weisburger JH. Exp Cell Res. 1971 Nov;69(1):106-12. doi: 10.1016/0014-4827(71)90316-8. PMID:
- Growth and continuous passage of COMMA-D mouse mammary epithelial cells in hormonally defined serum-free medium. Riss TL, Sirbasku DA. Cancer Res. 1987 Jul 15;47(14):3776-82. PMID: 3297308.
- Primary in vitro antibody responses by purified murine B lymphocytes in serum-free defined medium. Mosier DE. J Immunol. 1981 Oct;127(4):1490-3. PMID: 6792277
Parameter Specification Appearance Red, clear liquid pH 7.2 ± 0.1 Osmolality 275-360 mOsm/L Endotoxin NMT< 2EU/mL Mycoplasma Negative Suitability Suitable for mammalian cell culture Additive Sodium pyruvate Indicator Phenol red Mycoplasma Detection Negative Sterility Tested Sterile filtered using 0.22 µm filter Form Liquid Shipping Condition Room temperature Williams′ Medium E
Background
Williams′ Medium E is a modification version of Williams′ Medium. Although it is like MEM, there is differences in glucose as well as amino acid contents. This media was originally used to isolate and culture primary liver epithelial cells from Epithelial-like cells of fibroblast-like cells culture. It has been shown that it is suited for longer-term adult primary cell culture.
PurMa™ William’s E Medium is
- Suited for long-term culture.
- Enriched in amino acids.
- Also, double the glucose compared to the original formulation.
- Moreover, contains unique ingredients, including zinc, iron, manganese, non-essential amino acids, the reducing agent glutathione as well as lipid methyl linoleate
Moreover, PurMa™ William’s E Medium also contains:
- Low level of glucose (2.00 g/ liter). PurMa Biologics manufacturers the high glucose (4.5 g/L) version of this media as well (Cat #: P3S029880)
- Although the standard formulation contains 2.2 g/L Sodium bicarbonate, PurMa Biologics manufacturers the high sodium bicarbonate (3.7 g/L) Williams′ Medium E as well (Cat #: P3S032880)
- 2 mM L-glutamine (292 mg/L)’
Moreover, PurMa Biologics makes 112 types of William’s E Medium which is certainly the most comprehensive catalog of media.
Our products are the outcome of 30 years of experience in cutting-edge science. We routinely manufacture over 1500 media. We have the most comprehensive collection of cell and tissue culture media. our company uses %99 pure amino acids. This will significantly increase the consistency among your experiments, and the result of your lab. Considering the highest quality, our prices are extremely reasonable.
Application of William’s E-Medium
Additionally, This media has elements supporting the long-term culturing of primary cells. It utilizes a bicarbonate buffering system. it has been used for primary as well as commercial cell lines including primary liver epithelial cells, HeLa, Jurkat, MCF-7, PC12, PBMC, astrocytes, carcinomas as well and hybridoma cells.
Formulation:
The complete formulation is available in the formulation tab as well here: William’s E Medium Formulation
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