> a '>' or a ';' in the first column is a comment and is ignored
;
; proteins possibly interacting nucleic acids
;
ATPASE_
BZIP_BASIC
DNAA
DNASE_
DNA_MISMATCH
HELICASE
HELIX_LOOP_HELIX
KINASE
LIGASE
NUCLEAR_RECEPTOR
NUCLEASE
PHOSPHA
POLYMERASE
RECA
RECF_
RECOMBINASE
RIBONUCLEASE
RNASE_
RNA_POL
SIGMA
SSB_
TRANSPOSASE
ZINC_FINGER
ZN_FINGER