• Product nameAnti-CD98 antibody [MEM-108]
    See all CD98 primary antibodies
  • Description
    Mouse monoclonal [MEM-108] to CD98
  • SpecificityThis antibody recognises CD98 antigen.
  • Tested applicationsSuitable for: WB, ICC/IF, IP, Flow Cytmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Tissue/ cell preparation (Human). Burkitt’s lymphoma cell line Raji.

  • Positive control
    • ICC/IF: MCF7 cells.
  • General notes

    CD98 (4F2) is involved in normal and neoplastic cell growth.



Our Abpromise guarantee covers the use of ab2528 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB Use a concentration of 5 µg/ml.
ICC/IF Use a concentration of 5 µg/ml.
IP Use at an assay dependent concentration.
Flow Cyt Use at an assay dependent concentration.

ab170190 - Mouse monoclonal IgG1, is suitable for use as an isotype control with this antibody.


  • FunctionRequired for the function of light chain amino-acid transporters. Involved in sodium-independent, high-affinity transport of large neutral amino acids such as phenylalanine, tyrosine, leucine, arginine and tryptophan. Involved in guiding and targeting of LAT1 and LAT2 to the plasma membrane. When associated with SLC7A6 or SLC7A7 acts as an arginine/glutamine exchanger, following an antiport mechanism for amino acid transport, influencing arginine release in exchange for extracellular amino acids. Plays a role in nitric oxide synthesis in human umbilical vein endothelial cells (HUVECs) via transport of L-arginine. Required for normal and neoplastic cell growth. When associated with SLC7A5/LAT1, is also involved in the transport of L-DOPA across the blood-brain barrier, and that of thyroid hormones triiodothyronine (T3) and thyroxine (T4) across the cell membrane in tissues such as placenta. Involved in the uptake of methylmercury (MeHg) when administered as the L-cysteine or D,L-homocysteine complexes, and hence plays a role in metal ion homeostasis and toxicity. When associated with SLC7A5 or SLC7A8, involved in the cellular activity of small molecular weight nitrosothiols, via the stereoselective transport of L-nitrosocysteine (L-CNSO) across the transmembrane. Together with ICAM1, regulates the transport activity LAT2 in polarized intestinal cells, by generating and delivering intracellular signals. When associated with SLC7A5, plays an important role in transporting L-leucine from the circulating blood to the retina across the inner blood-retinal barrier.
  • Tissue specificityExpressed ubiquitously in all tissues tested with highest levels detected in kidney, placenta and testis and weakest level in thymus. During gestation, expression in the placenta was significantly stronger at full-term than at the mid-trimester stage. Expressed in HUVECS and at low levels in resting peripheral blood T-lymphocytes and quiescent fibroblasts. Also expressed in fetal liver and in the astrocytic process of primary astrocytic gliomas. Expressed in retinal endothelial cells and in the intestinal epithelial cell line C2BBe1.
  • Sequence similaritiesBelongs to the SLC3A transporter family.
  • Post-translational
    Phosphorylation on Ser-406; Ser-408 or Ser-410 and on Ser-527 or Ser-531 by ecto-protein kinases favors heterotypic cell-cell interactions.
  • Cellular localizationApical cell membrane. Melanosome. Identified by mass spectrometry in melanosome fractions from stage I to stage IV. Localized to the plasma membrane when associated with SLC7A5 or SLC7A8. Localized to the placental apical membrane. Located selectively at cell-cell adhesion sites (By similarity). Colocalized with SLC7A8/LAT2 at the basolateral membrane of kidney proximal tubules and small intestine epithelia. Expressed in both luminal and abluminal membranes of brain capillary endothelial cells (By similarity).
  • Information by UniProt
  • Database links
  • FormThere are 4 isoforms produced by alternative splicing.
  • Alternative names
    • 4F2 antibody
    • 4F2 cell surface antigen heavy chain antibody
    • 4F2 cell-surface antigen heavy chain antibody
    • 4F2 heavy chain antibody
    • 4F2 heavy chain antigen antibody
    • 4F2_HUMAN antibody
    • 4F2hc antibody
    • 4T2HC antibody
    • Antigen defined by monoclonal antibody 4F2 heavy chain antibody
    • Antigen identified by monoclonal antibodies 4F2 TRA1.10 TROP4 and T43 antibody
    • CD 98 antibody
    • CD98 antibody
    • CD98 antigen antibody
    • CD98 heavy chain antibody
    • CD98HC antibody
    • Heavy chain antibody
    • Lymphocyte activation antigen 4F2 large subunit antibody
    • MDU 1 antibody
    • MDU1 antibody
    • Monoclonal antibody 44D7 antibody
    • NACAE antibody
    • Slc3a2 antibody
    • Solute carrier family 3 (activators of dibasic and neutral amino acid transport) member 2 antibody
    • Solute carrier family 3 member 2 antibody
    see all

Anti-CD98 antibody [MEM-108] images

  • ICC/IF image of ab2528 stained MCF7 cells. The cells were 4% formaldehyde fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab2528, 5µg/ml) overnight at +4°C. The secondary antibody (green) was ab96879, DyLight® 488 goat anti-mouse IgG (H+L) used at a 1/250 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

  • All lanes : Anti-CD98 antibody [MEM-108] (ab2528) at 5 µg/ml

    Lane 1 : Jurkat (Human T cell lymphoblast-like cell line) Whole Cell Lysate
    Lane 2 : MCF7 (Human breast adenocarcinoma cell line) Whole Cell Lysate

    Lysates/proteins at 10 µg per lane.

    Goat polyclonal to Mouse IgG - H&L - Pre-Adsorbed (HRP) at 1/3000 dilution

    The CD98 protein has a predicted molecular weight of 57 kDa, however it is extensively glycosylated. This antibody recognises a bands at 98-150 kDa, similar to what has been observed with other antibodies directed against this protein.  

    Abcam welcomes customer feedback and would appreciate any comments regarding this product and the data presented above.

References for Anti-CD98 antibody [MEM-108] (ab2528)

This product has been referenced in:

See 1 Publication for this product

Product Wall

Thank you for your email.
I am sorry to hear that the product failed again. I have now raised the quality issues to our qc team. They might decide to retest this product.
I appreciate the time you have spent in troubleshooting and for the coop...

Read More

Thank you for contacting us. I apologies for the delay.
The protocol seems fine to me however I would suggest following updates;
- Blocking time; I can recommend blocking the membrane for 1-2 hours in 5% BSA at RT, I recommended BSA because it ...

Read More

Thank you for calling us and for alerting us to the problem you are experiencing with our product. We take product complaints very seriously, and investigate every product that we feel may not be performing correctly.
As we discussed on the phone,...

Read More

Thank you for contacting us and sorry for the delay of our reply.

Please find below the information I obtained for each anti-CD98 antibodies:

ab2528 : the epitope hasnot beenmapped.
ab23495 [44D7] reacts with the heavy chain o...

Read More

Thank you for your enquiry. All the information we have on species cross reactivity is specified on the datasheet. To our knowledge, cross reactivity with rat has not yet been tested. Should you decide to go ahead and purchase this product, please let ...

Read More