Remove characters with pattern from a tab-delimited file

I have saveral files with pattern such as

I want to remove all characters from starting '1' to last '_'. so that I can get an output like this from multiple files-

Using GNU awk:

awk -F "\t" '{ fld1=gensub(/(^NODE_)([[:digit:]]+)(.*)([[:digit:]]+$)/,"\\2_\\4","g",$1);OFS=IFS;print fld1"\t"$2}' file

Explanation:

awk -F "\t" '{                                                       # Set the field separator to tab
               fld1=gensub(/(^NODE_)([[:digit:]]+)(.*)([[:digit:]]+$)/,"\\2_\\4","g",$1);                                      # Split the first field into 4 sections represented in parenthesis and then substitute the line for the the second section, a "_" and then the fourth section. Read the result into a variable fld1
               print fld1"\t"$2                                      # Print fld1, followed by a tab and then the second field.
             }' file