An active antibody fragment (Fv) composed of the variable portions of heavy and light chains.

Amino Acid Sequence Amino Acids/analysis Animals Binding Sites Chromatography, DEAE-Cellulose Dansyl Compounds Electrophoresis Fluorescence Guanidines Immunoglobulin A/analysis Immunoglobulin Fab Fragments/analysis,isolation & purification Isoelectric Focusing Macromolecular Substances Mice Molecular Weight Myeloma Proteins/analysis Nitrobenzenes Pepsin A Peptides/analysis,isolation & purification Spectrometry, Fluorescence Spectrophotometry, Ultraviolet Ultracentrifugation Urea

Amino Acids Dansyl Compounds Guanidines Immunoglobulin A Immunoglobulin Fab Fragments Macromolecular Substances Myeloma Proteins Nitrobenzenes Peptides Urea Pepsin A