An immunolglobulin light chain-like protein composed of an IMMUNOGLOBULIN VARIABLE REGION-like peptide (such as light chain like lambda5 peptide) and an IMMUNOGLOBULIN CONSTANT REGION-like peptide (such as Vpreb1 peptide). Surrogate light chains associate with MU IMMUNOGLOBULIN HEAVY CHAINS in place of a conventional immunoglobulin light chains to form pre-B cell receptors.

Synonyms: lambda5 Peptide, Immunoglobulin Light Chain-Like psi lambda Light Chain VpreB-lambda 5 SL Chain Surrogate kappa Light Chain Light Chains, Surrogate Immunoglobulin Light Chain-Like lambda5 Peptide VpreB lambda5 Surrogate Light Chain VpreB lambda 5 SL Chain psiL Chain, Immunoglobulin lambda5 Peptide, Immunoglobulin Light Chain Like Pseudo Immunoglobulin Light Chain 0 Surrogate Immunoglobulin kappa Light Chain Light Chain, Surrogate Surrogate Light Chains Surrogate Light Chain Surrogate lambda Light Chain Immunoglobulin Light Chain Like lambda5 Peptide Immunoglobulin Light Chains, Surrogate Surrogate L Chain Protein Immunoglobulin psiL Chain VpreB-lambda5 Surrogate Light Chain Surrogate Immunoglobulin Light Chains