Masutani, C.

protein hhr 23 proteins hhr 23b xpc-hr 23b repair xpc-hr hhr 23a fraction antibody figure extract lesion hhr 23b protein damage binding yeast factor proteasome interaction domain amount xpc protein result rhhr 23b hhr 23b proteins sequence function panel cell extracts tfiih experiment presence reaction nickel-chelating sepharose beads group ub-like buffer activity ner factors nondamaged acids research ub-like domain research immunoblotting ubiquitin substrate repair bias mutant rs 5a rad 23 beads assay electrophoresis region xeroderma ub-like sequence homolog nucleotide excision repair 125 i-lysozyme degradation nh 2 terminus gradient xpchr 23b 30њ c xpchhr 23b degradation nucleotide glycerol excision preincubation specificity mixture strand absence fractionation hhr 23a protein agarose gel electrophoresis dna substrates purification preincubated protein fractions