TY - RPRT TI - A database and tools for 3-D protein structure comparison and alignment using the Combinatorial Extension (CE) algorithm. AU - I N Shindyalov AU - P E Bourne PY - 2001 DO - 10.1093/nar/29.1.228 UR - https://pubmed.ncbi.nlm.nih.gov/11125099/ ID - 11125099 ER -