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KG-1a is a promyeloblast macrophage cell line that was isolated from the bone marrow of a White, 59-year-old, male patient with acute myelogenous leukemia. This cell line was deposited by DW Golde and can be used in immune system disorder research.
Product category
Human cells
Homo sapiens, human
Cell type
promyeloblast, macrophage cell
Bone; Marrow
Acute myelogenous leukemia
3D cell culture
Immune system disorder research
Product format
Storage conditions
Vapor phase of liquid nitrogen
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ATCC determines the biosafety level of a material based on our risk assessment as guided by the current edition of Biosafety in Microbiological and Biomedical Laboratories (BMBL), U.S. Department of Health and Human Services. It is your responsibility to understand the hazards associated with the material per your organization’s policies and procedures as well as any other applicable regulations as enforced by your local or national agencies.

ATCC highly recommends that appropriate personal protective equipment is always used when handling vials. For cultures that require storage in liquid nitrogen, it is important to note that some vials may leak when submersed in liquid nitrogen and will slowly fill with liquid nitrogen. Upon thawing, the conversion of the liquid nitrogen back to its gas phase may result in the vial exploding or blowing off its cap with dangerous force creating flying debris. Unless necessary, ATCC recommends that these cultures be stored in the vapor phase of liquid nitrogen rather than submersed in liquid nitrogen.

Required Products

These products are vital for the proper use of this item and have been confirmed as effective in supporting functionality. If you use alternative products, the quality and effectiveness of the item may be affected.

Detailed product information


Specific applications
This cell line is a suitable transfection host.


Growth properties
Passage history
After the tenth passage, the parental KG-1 cells were cultured in two separate laboratories within the same department under identical conditions.
After 35 passages the cells in one laboratory expressed morphological differences from the pa
The variant subline KG-1a of the human acute myelogenous leukemia cell line KG-1 was isolated by H.P. Koeffler, et al.
59 years
The stemline chromosome number is 46 (pseudodiploid), with the 2S component occurring at 5.8%. Seven markers, including five ATCC CCL-246-specific markers, were found in most, if not all metaphases analyzed., Another marker ? del (7) was found only in about 50% of the metaphases. Normal chromosomes 5, 7, 8, 12, 17 and 22 were monosomic. The Y chromosome is detected in the Q-banded preparations.
AK-1, 0
ES-D, 1
GLO-I, 2
Me-2, 1
PGM1, 1-2
PGM3, 0

After the tenth passage, the parental KG-1 cells were cultured in two separate laboratories within the same department under identical conditions.

After 35 passages the cells in one laboratory expressed morphological differences from the parent line. The variant KG-1a was composed of undifferentiated promyeloblasts.

The cells did not stain for ASD chloroacetate esterase, alpha-naphthyl butyrate esterase or peroxidase.

Both populations exhibit many common characteristics. They share a similar doubling time, are negative for EBNA and VCA, express no surface immunoglobulins and exhibit identical HLA and isoenzyme profiles.

In contrast to the parental KG-1 (ATCC CCL-246) the KG-1a population is unresponsive to colony-stimulating factor in soft-agar culture and does not express the Ia-like antigen.

KG-1a cells are resistant to phorbol diester induced macrophage differentiation and proliferation of the cells is unaffected by the presence of phorbol diesters

.The KG-1a cells are morphologically, cytochemically, and functionally less mature than the parental KG-1.

Although derived from, and almost identical to, KG-1 (ATCC CCL-246) these cells do not spontaneously differentiate to granulocyte and macrophage like cells, do not express DR and do not respond to colony stimulating factor (CSF).

Handling information

Unpacking and storage instructions
  1. Check all containers for leakage or breakage.
  2. Remove the frozen cells from the dry ice packaging and immediately place the cells at a temperature below ­-130°C, preferably in liquid nitrogen vapor, until ready for use.
Complete medium
The base medium for this cell line is ATCC-formulated Iscove's Modified Dulbecco's Medium, Catalog No. 30-2005. To make the complete growth medium, add the following components to the base medium: fetal bovine serum to a final concentration of 20%.
Handling procedure

To insure the highest level of viability, thaw the vial and initiate the culture as soon as possible upon receipt. If upon arrival, continued storage of the frozen culture is necessary, it should be stored in liquid nitrogen vapor phase and not at -70°C.  Storage at -70°C will result in loss of viability.

  1. Thaw the vial by gentle agitation in a 37°C water bath. To reduce the possibility of contamination, keep the O-ring and cap out of the water.  Thawing should be rapid (approximately 2 minutes).
  2. Remove the vial from the water bath as soon as the contents are thawed, and decontaminate by dipping in or spraying with 70% ethanol. All of the operations from this point on should be carried out under strict aseptic conditions.
  3. Transfer the vial contents to a centrifuge tube containing 9.0 ml complete culture medium. and spin at approximately 125 x g for 5 to 7 minutes.
  4. Resuspend cell pellet with the recommended complete medium (see the specific batch information for the culture recommended dilution ratio). It is important to avoid excessive alkalinity of the medium during recovery of the cells.  It is suggested that, prior to the addition of the vial contents, the culture vessel containing the complete growth medium be placed into the incubator for at least 15 minutes to allow the medium to reach its normal pH (7.0 to 7.6). pH (7.0 to 7.6).
  5. Incubate the culture at 37°C in a suitable incubator.  A 5% CO2 in air atmosphere is recommended if using the medium described on this product sheet.        
Subculturing procedure
Cultures can be maintained by the addition of fresh medium or replacement of medium. Alternatively, cultures can be established by centrifugation with subsequent resuspension at 2 x 105 viable cells/mL.

Maintain cell density between 2 x 105 and 1 x 106 viable cells/mL.

Medium Renewal: Twice per week

Reagents for cryopreservation
Complete growth medium supplemented with 5% (v/v) DMSO (ATCC 4-X)

Quality control specifications

Mycoplasma contamination
Not detected
STR profiling
Amelogenin: X,Y
D13S317: 11,12
D16S539: 10,11
D5S818: 13
D7S820: 8,10
THO1: 7,8
TPOX: 7,9
vWA: 14,19


Deposited as
Homo sapiens
DW Golde

Legal disclaimers

Intended use
This product is intended for laboratory research use only. It is not intended for any animal or human therapeutic use, any human or animal consumption, or any diagnostic use.

The product is provided 'AS IS' and the viability of ATCC® products is warranted for 30 days from the date of shipment, provided that the customer has stored and handled the product according to the information included on the product information sheet, website, and Certificate of Analysis. For living cultures, ATCC lists the media formulation and reagents that have been found to be effective for the product. While other unspecified media and reagents may also produce satisfactory results, a change in the ATCC and/or depositor-recommended protocols may affect the recovery, growth, and/or function of the product. If an alternative medium formulation or reagent is used, the ATCC warranty for viability is no longer valid.  Except as expressly set forth herein, no other warranties of any kind are provided, express or implied, including, but not limited to, any implied warranties of merchantability, fitness for a particular purpose, manufacture according to cGMP standards, typicality, safety, accuracy, and/or noninfringement.


This product is intended for laboratory research use only. It is not intended for any animal or human therapeutic use, any human or animal consumption, or any diagnostic use. Any proposed commercial use is prohibited without a license from ATCC.

While ATCC uses reasonable efforts to include accurate and up-to-date information on this product sheet, ATCC makes no warranties or representations as to its accuracy. Citations from scientific literature and patents are provided for informational purposes only. ATCC does not warrant that such information has been confirmed to be accurate or complete and the customer bears the sole responsibility of confirming the accuracy and completeness of any such information.

This product is sent on the condition that the customer is responsible for and assumes all risk and responsibility in connection with the receipt, handling, storage, disposal, and use of the ATCC product including without limitation taking all appropriate safety and handling precautions to minimize health or environmental risk. As a condition of receiving the material, the customer agrees that any activity undertaken with the ATCC product and any progeny or modifications will be conducted in compliance with all applicable laws, regulations, and guidelines. This product is provided 'AS IS' with no representations or warranties whatsoever except as expressly set forth herein and in no event shall ATCC, its parents, subsidiaries, directors, officers, agents, employees, assigns, successors, and affiliates be liable for indirect, special, incidental, or consequential damages of any kind in connection with or arising out of the customer's use of the product. While reasonable effort is made to ensure authenticity and reliability of materials on deposit, ATCC is not liable for damages arising from the misidentification or misrepresentation of such materials.

Please see the material transfer agreement (MTA) for further details regarding the use of this product. The MTA is available at

Permits & Restrictions

Import Permit for the State of Hawaii

If shipping to the U.S. state of Hawaii, you must provide either an import permit or documentation stating that an import permit is not required. We cannot ship this item until we receive this documentation. Contact the Hawaii Department of Agriculture (HDOA), Plant Industry Division, Plant Quarantine Branch to determine if an import permit is required.


Frequently Asked Questions


Curated Citations

Koeffler HP. Induction of differentiation of human acute myelogenous leukemia cells: therapeutic implications. Blood 62: 709-721, 1983. PubMed: 6192859

Koeffler HP, et al. An undifferentiated variant derived from the human acute myelogenous leukemia cell line (KG-1). Blood 56: 265-273, 1980. PubMed: 6967340

Clark RA, et al. Tenascin supports lymphocyte rolling. J. Cell Biol. 137: 755-765, 1997. PubMed: 9151679

Chen H, et al. Octamer binding factors and their coactivator can activate the murine PU.1 (spi-1) promoter. J. Biol. Chem. 271: 15743-15752, 1996. PubMed: 8663022

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