Mfg Part Number
Ab05114-10.3

Vector Labs Ab05114-10.3 Anti-LCMV surface glycoprotein [M28], Human IgG1, Fc Silent™, kappa (100 μg)

Quick Overview
The original antibody was generated by introducing two mutations (S32R and R55 insertion) into the sequence of the parent clone 18.5C (an isolate from a human survivor of Lassa fever).
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Product Class:Purified
Clone ID:M28
Heavy Chain Modification:Fc Silent™
Synonyms:LCMV surface GP; lineage I Lassa fever virus; lineage I LASV; LASV; Pre-glycoprotein polyprotein GP complex; Pre-GP-C; Stable signal peptide; SSP; Glycoprotein G1; GP1; Glycoprotein G2; GP2; 18.5C-M28
Amount:100 μg
Application Codes Clone:ELISA; Neutralization; in vitro; in vivo; CryoEM
Shipping Temperature:Wet Ice
Origin Pub PMID:36990092
Buffer Composition:PBS with 0.02% Proclin 300.
Original Format:IgG1
Storage Temperature:Store at 4⁰C for up to 3 months. For longer storage, aliquot and store at -20⁰C.
Chimeric Use Statement:This is a reformatted human IgG1 Fc Silent Fc Silent™ antibody, based on the original human IgG1 format, created for improved compatibility with existing reagents, assays and techniques.
Specificity Statement:This antibody is specific for the LCMV surface glycoprotein. It binds to a pre-fusion epitope of the LCMV GP complex.
Application Notes:The original antibody (human IgG1) was generated and confirmed to specifically recognize the target via ELISA. A Fab version of it was generated and tested for neutralization. This antibody demonstrated potent in vitro neutralization (IC₅₀ ≈ 0.51 μg/mL) and both prophylactic and therapeutic efficacy in a murine chronic LCMV model, with complete viral clearance and protection from weight loss. Furthermore, this antibody enabled high-resolution cryoEM of the LCMV GP trimer in both apo and Fab-bound states, defining a quaternary, pre-fusion-specific epitope (Moon-Walker et al., 2023; PMID: 36990092). In vitro, this antibody fully neutralized cell-free LCMV at 5 µg/mL and was used to demonstrate that ~50% of viral spread occurs via antibody-resistant, direct cell-to-cell nanotube transfer (Byford et al., 2024; PMID: 39578605).
More Information
Brand Vector Labs
UNSPSC 12161500