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. 1999 Sep;65(9):4028–4031. doi: 10.1128/aem.65.9.4028-4031.1999

TABLE 3.

Comparison of amino acid sequences of the His-1 motif

Enzymea His-1 motif Reference
Deacetoxycepharosporin C synthase PHYDLSTIT 28
Isopenicillin synthase WHEDVSLIT 3
Lysyl hydroxylase PHHDASTFT 22
Prolyl 4-hydroxylase α-subunit PHFDFARKD 8
Ethylene-forming enzyme AHTDYGLL 6
Plant TOME8 QHTDIGFVT 5
Hyoscyamine 6β-hydroxylase GHYDGNLIT 17
Proline 3-hydroxylase PHRDFVELD 21
Proline 4-hydroxylase WHQDYIFWA This study
a

Data are shown for deacetoxycepharosporin C synthase from Cepharosporium acremonium, isopenicillin N synthase from Penicillium chrysogenum, lysyl hydroxylase from chicks, prolyl 4-hydroxylase α-subunit from humans, ethylene-forming enzyme from Pseudomonas syringae pv. phaseolicola PK2, plant TOME8 from tomato, hyoscyamine 6β-hydroxylase from Hyoscyamus niger, proline 3-hydroxylase from Streptomyces sp. strain TH1, and proline 4-hydroxylase from Dactylosporangium sp. strain RH1. Completely conserved histidine (H) and aspartic acid (D) residues are indicated by boldface type.