4.2.1.22 7.4 - cystathionine beta-synthase assay at 714248 4.2.1.22 7.5 - - 5599 4.2.1.22 7.9 8.3 enzyme form alpha 5591 4.2.1.22 8 - - 696822 4.2.1.22 8 9 - 5603 4.2.1.22 8.3 - - 650216 4.2.1.22 8.3 - assay at 701929 4.2.1.22 8.3 - enzyme form beta 5591 4.2.1.22 8.3 - wild-type enzyme 650154 4.2.1.22 8.4 9 - 5584, 5587 4.2.1.22 8.5 - - 649915, 695501 4.2.1.22 8.5 - assay at 714912 4.2.1.22 8.5 - broad, full-length and the C-terminally truncated enzyme (CBS 1-413) 677837 4.2.1.22 8.5 - full-length Fe(III)-enzyme and truncated Fe(III) CBS-45 664020 4.2.1.22 8.5 - recombinant enzyme 5601 4.2.1.22 8.6 - - 5589 4.2.1.22 8.6 - around pH 8.6 701064 4.2.1.22 8.6 - assay at 702457, 704974, 713958, 715150, 715172 4.2.1.22 9 - - 5597 4.2.1.22 9 - sharp, N- and C-terminally truncated enzyme (BS 71-400) 677837