calcium-binding
1a0sB, 1a4gA, 1a8xA, 1ad5A, 1af0A, 1afaA, 1ai2A, 1alvA, 1amyA, 1atnB, 1auxA, 1avjA, 1axkB, 1axnA, 
1ayoB, 1az0C, 1b2lA, 1b47C, 1b90A, 1bagA, 1bfdA, 1bj3A, 1bjqH, 1bjrA, 1blxA, 1bmoA, 1brwA, 1bviD, 
1c07A, 1c1yB, 1c3xB, 1c7iA, 1c7kA, 1c8nA, 1celA, 1clcA, 1cruA, 1cvmA, 1cvrA, 1d0bA, 1d0kA, 1db0B, 
1dfmC, 1djwB, 1dmuB, 1dsyA, 1dthA, 1dykA, 1e1aA, 1e29A, 1e3xA, 1e54A, 1e5jA, 1e5nB, 1e7dA, 1e8uB, 
1ea7A, 1eakA, 1eb7A, 1ee6A, 1eggB, 1ej8A, 1ek3A, 1el1A, 1emnA, 1espA, 1ezmA, 1f0oC, 1f2oA, 1f4nA, 
1f4oB, 1f5yA, 1f7lA, 1faxA, 1fi5A, 1fi6A, 1fmjA, 1fpwA, 1fsuA, 1fwxC, 1fz0C, 1fzhB, 1g0hA, 1g1qA, 
1g42A, 1g43A, 1g5cF, 1g9uA, 1ga1A, 1gcaA, 1gmmA, 1gr3A, 1gtj2, 1gttA, 1guiA, 1gxrA, 1h4jG, 1h6xA, 
1h80B, 1hasA, 1hchA, 1hdfB, 1hdhA, 1hfxA, 1hj9A, 1hm9A, 1hn4A, 1hp0B, 1hplA, 1hqdA, 1hqvA, 1htnA, 
1hx0A, 1hyoB, 1i40A, 1i82A, 1imeA, 1irjA, 1it4A, 1j5uA, 1j6zA, 1j7oA, 1j84A, 1j9kA, 1jb0L, 1jdaA, 
1je5B, 1jf5A, 1jg8D, 1jhnA, 1jmjA, 1jtdB, 1jtgB, 1jv2B, 1jx5A, 1jxlA, 1jxzA, 1k12A, 1k96A, 1k9iD, 
1ka1A, 1kdmA, 1kfqA, 1kk8C, 1ku0A, 1kwhA, 1kxrB, 1l3wA, 1l5hB, 1lbxA, 1le6A, 1lnqA, 1lwhA, 1m1jB, 
1m1jC, 1m1uA, 1m56G, 1mn1A, 1mnzA, 1mr8B, 1ncaN, 1npsA, 1obrA, 1pexA, 1pocA, 1pvaA, 1pytC, 1qdbA, 
1qh4D, 1qhdA, 1qlsA, 1qmdA, 1qmpD, 1rdrA, 1rlwA, 1rtgA, 1rxoE, 1scmB, 1sgtA, 1srrC, 1supA, 1svyA, 
1tadC, 1tcoB, 1tlgB, 1vsiA, 1wadA, 1zqcA, 2aaaA, 2bamA, 2masA, 2pctA, 2porA, 2psrA, 2sasA, 2scpA, 
2snsA, 4sgbE, 5chyA, 5enlA, 5stdC

cobalt-binding
1a0eA, 1b59A, 1bsjA, 1c4gA, 1cahA, 1cobB, 1dy4A, 1epyA, 1fx7A, 1g16D, 1h0nA, 1hv9B, 1iabA, 1ireA, 
1jn1A, 1jymA, 1k1eA, 1kejA, 1lfmB, 1lnaE, 1qreA, 1scsA, 1sthA, 1vlxB, 1ximB, 2claA, 2fuaA, 2gliA, 
3matA

copper-binding
1a65A, 1aozA, 1aqpA, 1bawC, 1bqkA, 1bt1A, 1curA, 1cyxA, 1ehkA, 1ehkB, 1eqwB, 1et7A, 1fd8A, 1fsrA, 
1fwxB, 1gw0A, 1iaaA, 1ibyA, 1id2C, 1jerA, 1js8A, 1juhB, 1jzgA, 1kbvC, 1kdiA, 1kv7A, 1m56G, 1m56H, 
1ocrB, 1opmA, 1qhqA, 1srdC, 1thoA, 2cbpA, 2oxiB

iron-binding
1a56A, 1a7dA, 1afrA, 1ahjA, 1aomB, 1aqeA, 1auiA, 1b06A, 1b0vA, 1b2vA, 1b4uB, 1b71A, 1b7vA, 1b9rA, 
1biqB, 1bk0A, 1bszA, 1bvbA, 1c4aA, 1c52A, 1cc5A, 1cfmB, 1cjxA, 1cojA, 1cxcA, 1cyjA, 1d4cA, 1d7cA, 
1d8uB, 1dfxA, 1diqD, 1dlmA, 1do6A, 1doiA, 1ds1A, 1dtgA, 1e1dA, 1e29A, 1e3dC, 1e5dB, 1e5sA, 1e7pH, 
1e7pI, 1e8eA, 1eb7A, 1eg9A, 1ehjA, 1ehkA, 1eo2B, 1ep1B, 1etpA, 1ey2A, 1ezvC, 1ezvE, 1f37B, 1fcdB, 
1fgjA, 1fhaA, 1fqtA, 1frdA, 1frfB, 1fziA, 1g8kB, 1gksA, 1gp6A, 1gqwA, 1gqxA, 1gupB, 1gyoA, 1h29A, 
1h7aA, 1hlbA, 1hrkA, 1i7hA, 1j5rA, 1j5vA, 1jdlA, 1jm1A, 1jmxA, 1jniA, 1jroA, 1k6wA, 1kb9D, 1kbiA, 
1kbpA, 1kf6B, 1kgnA, 1kmyA, 1kqfC, 1krhA, 1l5pA, 1la6B, 1lm3D, 1lnbE, 1ltvA, 1m1rA, 1m54A, 1m56G, 
1mgnA, 1mmmB, 1mpyA, 1mrpA, 1phzA, 1qdbA, 1qhuA, 1rb9A, 1rxgA, 1soxB, 1uteA, 1wadA, 1xsmA, 1yeaA, 
2cy3A, 2mtaC, 2piaA, 2prcC, 6ccpA

magnesium-binding
1a49A, 1a82A, 1aa9A, 1agrA, 1ajbA, 1aoxA, 1awkA, 1b23B, 1b6sB, 1b8cA, 1bfdA, 1bhoA, 1bl3C, 1bpmA, 
1bpyD, 1bwvE, 1bx4A, 1cg0A, 1cmcB, 1cqiB, 1cw0D, 1cw3A, 1d2iC, 1d3yB, 1dawA, 1dbrD, 1dcmB, 1delA, 
1dgmA, 1dqnA, 1dtnA, 1dxeB, 1dy3A, 1e1zA, 1e4eA, 1ebgA, 1ecbD, 1ecqA, 1efkA, 1ehiA, 1ew2A, 1ewkB, 
1eyiA, 1eyzA, 1f1zA, 1f2uA, 1f4vA, 1f5nA, 1f61A, 1f6bA, 1fezA, 1fhvA, 1fiuI, 1frfB, 1fvuB, 1fx4A, 
1g0uG, 1g0uI, 1g0uL, 1g29A, 1g3uA, 1g64B, 1g69B, 1g8fA, 1g97A, 1gagA, 1gkbA, 1golA, 1gqcA, 1grnA, 
1gsaA, 1h65C, 1h7qA, 1hbuA, 1hnzD, 1htwA, 1hujA, 1hurB, 1hyoB, 1i7qC, 1i94E, 1i94P, 1i94Q, 1i94T, 
1id0A, 1ig5A, 1ii0B, 1iovA, 1iq8A, 1iruU, 1iv2C, 1iw7P, 1j7lA, 1j97A, 1j9jA, 1jbwA, 1jfgB, 1jgtB, 
1jj22, 1jj2S, 1jj2X, 1jmsA, 1jp4A, 1jpmA, 1jscB, 1jxlA, 1jylA, 1k4iA, 1k5dA, 1k77A, 1k9yA, 1kczB, 
1khzB, 1kqpA, 1ktgA, 1kv8A, 1ky2A, 1l3rE, 1lvhA, 1mfrL, 1musA, 1obwA, 1pfkA, 1powB, 1qb7A, 1qhxA, 
1qlgA, 1qpbA, 1qr0A, 1qs0A, 1qssA, 1rddA, 1repC, 1rk2D, 1rtdA, 1rvcA, 1rypH, 1ubwA, 1vidA, 1wdcB, 
1xlcA, 1xraA, 1yveJ, 1zbdA, 1zooA, 1zpdA, 2hgsA, 2prnA, 2shkB, 2uagA, 4tmyB, 5eatA

manganese-binding
1a0dA, 1a0oA, 1a5vA, 1a6qA, 1aq2A, 1az9A, 1b8aA, 1bcfA, 1cdkA, 1chrA, 1cjkA, 1cnzB, 1cpoA, 1d8hA, 
1dahA, 1dckB, 1didA, 1e24A, 1e6aA, 1ef2A, 1ejjA, 1elsA, 1eo4C, 1f1hC, 1f3wH, 1fa0B, 1fi2A, 1fjmA, 
1fsaB, 1fuiD, 1g0iA, 1g15A, 1g5bB, 1g8oA, 1g9rA, 1gq2A, 1gq6B, 1gv3A, 1gx6A, 1ho5A, 1hqfA, 1hx3B, 
1i0bA, 1i19B, 1i5aA, 1igvA, 1ii7A, 1imcB, 1inoA, 1ipsA, 1ir6A, 1j8xB, 1jaiA, 1jfzB, 1jkuA, 1jlkA, 
1jlmA, 1jprB, 1k20A, 1k4lA, 1kflD, 1kgpA, 1kheA, 1khwA, 1knjA, 1l3jA, 1l5gB, 1lbyA, 1ll2A, 1lncE, 
1lu1A, 1m0dA, 1mnpA, 1musA, 1ncyA, 1qh3A, 1ql6A, 1qmgB, 1qpsA, 1rzdA, 1zopA, 1zqmA, 2bowA, 2mnrA, 
2palA, 3bamA, 3tmyB

nickel-binding
1b9nA, 1bs6A, 1bxiB, 1e0oD, 1ejeA, 1frfB, 1h9uD, 1iaeA, 1ie7C, 1iidA, 1j5yA, 1jvnA, 1kicA, 1lqyA, 
1nzrA, 1qcoB, 1rzeA, 1scrA, 1vklA, 260lA, 2tdxA

zinc-binding
1a1rB, 1a4lA, 1a5tA, 1a6fA, 1a73E, 1a8hA, 1a8tA, 1adnA, 1af0A, 1af2A, 1ah7A, 1ajbA, 1ajyA, 1ak0A, 
1ampA, 1anvA, 1ardA, 1astA, 1auiA, 1b0nA, 1b57A, 1b66A, 1b71A, 1b8tA, 1bboA, 1bf6A, 1bi0A, 1bkcC, 
1brgC, 1bs4A, 1btgB, 1btkB, 1bvtA, 1bzmA, 1c1uB, 1c3rA, 1c7kA, 1c8yA, 1c9qA, 1ca1A, 1cg2D, 1chcA, 
1ci3A, 1cjvC, 1ck1A, 1clcA, 1cnqA, 1cp7A, 1cvrA, 1cw0D, 1cy5A, 1czfB, 1d09B, 1d0qA, 1dcqA, 1ddzA, 
1de5D, 1dgsA, 1dk4A, 1dl6A, 1dl9A, 1do5A, 1dqsB, 1dsqA, 1dthA, 1dv6C, 1dvpA, 1dx8A, 1dy1A, 1dzuA, 
1e08B, 1e31B, 1e3jA, 1e4uA, 1e67C, 1e7dA, 1eakA, 1eb6A, 1ee8A, 1ef0B, 1efzA, 1eh6A, 1ekjG, 1enrA, 
1eqwB, 1espA, 1eteA, 1eu3A, 1eu4A, 1eucB, 1evkA, 1ew2A, 1exkA, 1ezmA, 1f0jA, 1f3zA, 1f4sC, 1f5fA, 
1f81A, 1f82A, 1faqA, 1fbvA, 1fbxA, 1fioA, 1fjgD, 1fjgN, 1fn9A, 1fnoA, 1fp0A, 1ft1B, 1fwqA, 1g12A, 
1g25A, 1g47A, 1g5cA, 1g71A, 1gkrA, 1gl4A, 1gpcA, 1gr0A, 1gs7A, 1gt7J, 1gupA, 1gvfB, 1gvyA, 1gytD, 
1gzhC, 1h4sA, 1h7rA, 1h8lA, 1hetA, 1hi9B, 1hp1A, 1hp7A, 1hr6D, 1hz5A, 1hzxA, 1hzyB, 1i3jA, 1i3qC, 
1i3qI, 1i3qJ, 1i6nA, 1i7wA, 1ia9B, 1ibqA, 1iciA, 1ie0A, 1im5A, 1iq8A, 1irxB, 1itqA, 1j6wA, 1j79A, 
1j8fA, 1jdiA, 1jjdA, 1jk0A, 1jkeD, 1jobA, 1jq5A, 1jqgA, 1jtkA, 1jvbA, 1jw9B, 1jwhD, 1jy8A, 1k1dC, 
1k24A, 1k2fA, 1k2yX, 1k3wA, 1k4pA, 1k6yB, 1k81A, 1k9zA, 1kbpC, 1keaA, 1kfiA, 1kfvA, 1kjzA, 1kl9A, 
1kn2L, 1kopA, 1ku0A, 1kwmA, 1l0yA, 1l1oC, 1lbaA, 1lbuA, 1ldjB, 1li5A, 1liqA, 1lmlA, 1lqwA, 1lr5C, 
1lt8A, 1m55A, 1m5fB, 1m60A, 1nc8A, 1noyB, 1obrA, 1occF, 1paaA, 1pmiA, 1pszA, 1pyiA, 1qe3A, 1qh3A, 
1qp9A, 1qqtA, 1qr2A, 1qrlA, 1qtwA, 1rmdA, 1seeA, 1smlA, 1tafB, 1tbnA, 1tf6D, 1tfiA, 1toaB, 1tonA, 
1vhhA, 1vshA, 1xerA, 1xllB, 1xpaA, 1ykfC, 1yuiA, 1zbdB, 1zfoA, 1zfpE, 1zinA, 1zncA, 258lA, 2a0bA, 
2cuaB, 2gatA, 2hrvA, 2nllB, 2psrA, 3caoA, 3kvtA, 4enlA, 4mt2A, 5znfA, 7ceiB, 7mdhB, 9icfA