Q. Cte-znua, Q. Eco-sita, and . Eco-znua, Q1RAS7_ECOUT; Efs-0055, Q839U5; Efs-0577, Q8KU66; Efs- 2076, Q832Z2; Efs-3206, Q82Z67; Hdu-YfeA, Q7VKQ6_HAEDU; Hdu-ZnuA, Q9RPX0; Hin-0362, Q57449; Hin-ZnuA, P44526; Lla-MtsA, Q9CFZ5; Lla-ZitS, Q9CDU6; Lmo-0153, Q8YAH3; Lmo-1671, Q8Y6L3; Lmo-1847, Q8Y653; Pae-2407, Q9I174_PSEAE; Pae-ZnuA, Q9HT75_PSEAE; Psy-1951, Q4ZV28_PSEU2; Psy-2368, Q4ZTW5_PSEU2; Psy-ZnuA, Q4ZZS4_PSEU2; Sag-1898, Q3JZ10

Q. Sep-sitc, Q. Sgo-adca, Y. Sgo-lmb, Y. Sgo-scaa, Y. Smu-adca et al., Q8CWN2; Spn-AdcAII, Q8DQ09; Spn-PsaA, P0A4G3; Spy-AdcA, Q9A0L9; Spy-MtsA, P0A4G4; Spy-Lbp, Q99XV3; Ssa- 1990, A3CQA6_STRSV; Ssa-AdcA, A3CK95_STRSV; Ssa-Lmb, A3CNI4_STRSV; Ssa-SsaB, A3CKL4_STRSV; Sth-AdcA, Q5M4Q6_STRT2; Sty-sitA, Q9XCS2_SALTI; Sty-ZnuA, Q8Z5W7_SALTI; Syn-MntC, Q79EF9_SYNY3; Syn-ZnuA, P73085_SYNY3; Tma-0123, Q9WXX7 For each protein the three first letters specify the bacterial species: Bce, Bacillus cereus Chlamydia pneumonia, 2081.

. Cpe, Clostridium perfringens; Cte, Clostridium tetani; Eco, Escherichia coli; Efs, Enterococcus faecalis

H. Hin, L. Lla, L. Lmo, P. Pae, and . Aeruginosa, Pseudomonas syringae; Sty, Salmonella typhi; Sau, Staphylococcus aureus Staphylococcus epidermidis; Sag, Streptococcus agalactiae; Sgo, Streptococcus gordonii; Smu, Streptococcus mutans; Spn, Streptococcus pneumoniae; Spy, Streptococcus pyogenes; Ssa, Streptococcus sanguini; Sth, Streptococcus thermophilus; Syn, Synechocystis; Tma, Thermotoga maritima; Tpa, Treponema pallidum; Vch, Vibrio cholerae; Ype, Yersinia pestis. The organisation in classic abc operon is indicated by (+). The nature of the metal ion bound is shown as well as the presence of a predicted long flexible loop at the entrance of the binding site. Poly His sequence located in the loop is indicated by (H). The three S. pneumoniae proteins are underlined. Proteins whose structure has been solved are marked in yellow. Gram-positive/negative bacterial classification is indicated. *Present work. See also Refs The biochemical basis of zinc physiology, Physiol. Rev, vol.1835, issue.73, pp.22-2931, 1993.

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