The invention discloses a
library construction method for detecting gastrointestinal
stromal tumor molecular typing and a gastrointestinal
stromal tumor molecular typing method, and belongs to the technical field of
biology. Comprising the following steps: fragmenting
a DNA (Deoxyribonucleic Acid) extract of a gastrointestinal
stromal tumor patient specimen, modifying a terminal, connecting a joint, purifying and pre-amplifying, and carrying out
hybridization reaction on a
hybridization capture enrichment probe and a pre-amplified sequence to enrich a target sequence; the
hybridization capture enrichment probe comprises a sequence as shown in SEQ ID NO: 1-109; the method comprises the following steps of: performing amplification after non-specific capture and binding
DNA fragments are eluted and removed, performing
nucleic acid concentration and fragment length quantification on a product to obtain a
library, and performing
bioinformatics analysis on gastrointestinal stromal
tumor patient specimen data by next-generation sequencing to obtain gastrointestinal stromal tumor
molecular typing information. According to the invention, in-vitro non-diagnostic gastrointestinal stromal tumor molecular
typing joint detection is realized, multi-
gene variation form identification is completed in one experiment, the detection cost is saved, and the sensitivity is high.