K00643  E2.3.1.37, ALAS; 5-aminolevulinate synthase [EC:2.3.1.37]
       K01885  EARS, gltX; glutamyl-tRNA synthetase [EC:6.1.1.17]
       K14163  EPRS; bifunctional glutamyl/prolyl-tRNA synthetase [EC:6.1.1.17 6.1.1.15]
       K02492  hemA; glutamyl-tRNA reductase [EC:1.2.1.70]
       K01845  hemL; glutamate-1-semialdehyde 2,1-aminomutase [EC:5.4.3.8]
       K01698  hemB, ALAD; porphobilinogen synthase [EC:4.2.1.24]
       K01749  hemC, HMBS; hydroxymethylbilane synthase [EC:2.5.1.61]
       K01719  hemD, UROS; uroporphyrinogen-III synthase [EC:4.2.1.75]
       K01599  hemE, UROD; uroporphyrinogen decarboxylase [EC:4.1.1.37]
       K00228  CPOX, hemF; coproporphyrinogen III oxidase [EC:1.3.3.3]
       K02495  hemN, hemZ; oxygen-independent coproporphyrinogen III oxidase [EC:1.3.98.3]
       K00230  hemG; menaquinone-dependent protoporphyrinogen oxidase [EC:1.3.5.3]
       K00231  PPOX, hemY; protoporphyrinogen/coproporphyrinogen III oxidase [EC:1.3.3.4 1.3.3.15]
       K08973  hemJ; protoporphyrinogen IX oxidase [EC:1.3.99.-]
       K01772  hemH, FECH; protoporphyrin/coproporphyrin ferrochelatase [EC:4.98.1.1 4.99.1.9]
       K00435  hemQ; hydrogen peroxide-dependent heme synthase [EC:1.3.98.5]
       K25033  chdC, hemQ; hydrogen peroxide-dependent heme synthase [EC:1.3.98.5]
       K13542  cobA-hemD; uroporphyrinogen III methyltransferase / synthase [EC:2.1.1.107 4.2.1.75]
       K13543  hemDX; uroporphyrinogen III methyltransferase / synthase [EC:2.1.1.107 4.2.1.75]
       K02496  hemX; uroporphyrin-III C-methyltransferase [EC:2.1.1.107]
       K02302  cysG; uroporphyrin-III C-methyltransferase / precorrin-2 dehydrogenase / sirohydrochlorin ferrochelatase [EC:2.1.1.107 1.3.1.76 4.99.1.4]
       K02303  cobA; uroporphyrin-III C-methyltransferase [EC:2.1.1.107]
       K00589  MET1; uroporphyrin-III C-methyltransferase [EC:2.1.1.107]
       K02304  MET8; precorrin-2 dehydrogenase / sirohydrochlorin ferrochelatase [EC:1.3.1.76 4.99.1.4]
       K24866  sirC; precorrin-2 dehydrogenase [EC:1.3.1.76]
       K03794  sirB; sirohydrochlorin ferrochelatase [EC:4.99.1.4]
       K22225  ahbAB; siroheme decarboxylase [EC:4.1.1.111]
       K22226  ahbC; Fe-coproporphyrin III synthase
       K22227  ahbD; AdoMet-dependent heme synthase [EC:1.3.98.6]
       K24867  nirN; dihydro-heme d1 dehydrogenase
       K02257  COX10, ctaB, cyoE; heme o synthase [EC:2.5.1.141]
       K02259  COX15, ctaA; heme a synthase [EC:1.17.99.9]
       K02190  cbiK; sirohydrochlorin cobaltochelatase [EC:4.99.1.3]
       K03795  cbiX; sirohydrochlorin cobaltochelatase [EC:4.99.1.3]
       K22011  cfbA; sirohydrochlorin cobalto/nickelchelatase [EC:4.99.1.3 4.99.1.11]
       K03394  cobI-cbiL; precorrin-2/cobalt-factor-2 C20-methyltransferase [EC:2.1.1.130 2.1.1.151]
       K13540  cobIJ; precorrin-2 C20-methyltransferase / precorrin-3B C17-methyltransferase [EC:2.1.1.130 2.1.1.131]
       K02229  cobG; precorrin-3B synthase [EC:1.14.13.83]
       K05934  cobJ, cbiH; precorrin-3B C17-methyltransferase / cobalt-factor III methyltransferase [EC:2.1.1.131 2.1.1.272]
       K13541  cbiGH-cobJ; cobalt-precorrin 5A hydrolase / cobalt-factor III methyltransferase / precorrin-3B C17-methyltransferase [EC:3.7.1.12 2.1.1.272 2.1.1.131]
       K21479  cbiH60; cobalt-factor III methyltransferase [EC:2.1.1.272]
       K05936  cobM, cbiF; precorrin-4/cobalt-precorrin-4 C11-methyltransferase [EC:2.1.1.133 2.1.1.271]
       K02189  cbiG; cobalt-precorrin 5A hydrolase [EC:3.7.1.12]
       K02228  cobF; precorrin-6A synthase [EC:2.1.1.152]
       K05895  cobK-cbiJ; precorrin-6A/cobalt-precorrin-6A reductase [EC:1.3.1.54 1.3.1.106]
       K02188  cbiD; cobalt-precorrin-5B (C1)-methyltransferase [EC:2.1.1.195]
       K00595  cobL-cbiET; precorrin-6B C5,15-methyltransferase / cobalt-precorrin-6B C5,C15-methyltransferase [EC:2.1.1.132 2.1.1.289 2.1.1.196]
       K02191  cbiT; cobalt-precorrin-6B (C15)-methyltransferase [EC:2.1.1.196]
       K03399  cbiE; cobalt-precorrin-7 (C5)-methyltransferase [EC:2.1.1.289]
       K06042  cobH-cbiC; precorrin-8X/cobalt-precorrin-8 methylmutase [EC:5.4.99.61 5.4.99.60]
       K02224  cobB-cbiA; cobyrinic acid a,c-diamide synthase [EC:6.3.5.9 6.3.5.11]
       K02230  cobN; cobaltochelatase CobN [EC:6.6.1.2]
       K09882  cobS; cobaltochelatase CobS [EC:6.6.1.2]
       K09883  cobT; cobaltochelatase CobT [EC:6.6.1.2]
       K13786  cobR; cob(II)yrinic acid a,c-diamide reductase [EC:1.16.8.-]
       K00798  MMAB, pduO; cob(I)alamin adenosyltransferase [EC:2.5.1.17]
       K19221  cobA, btuR; cob(I)alamin adenosyltransferase [EC:2.5.1.17]
       K02232  cobQ, cbiP; adenosylcobyric acid synthase [EC:6.3.5.10]
       K02227  cbiB, cobD; adenosylcobinamide-phosphate synthase [EC:6.3.1.10]
       K02225  cobC1, cobC; cobalamin biosynthesis protein CobC
       K08260  cbiZ; adenosylcobinamide hydrolase [EC:3.5.1.90]
       K02231  cobP, cobU; adenosylcobinamide kinase / adenosylcobinamide-phosphate guanylyltransferase [EC:2.7.1.156 2.7.7.62]
       K19712  cobY; adenosylcobinamide-phosphate guanylyltransferase [EC:2.7.7.62]
       K02233  E2.7.8.26, cobS, cobV; adenosylcobinamide-GDP ribazoletransferase [EC:2.7.8.26]
       K25496  cbiR; adenosylcobalamin phosphodiesterase
       K22465  bzaA_B; 5-hydroxybenzimidazole synthase [EC:4.1.99.23]
       K22466  bzaF; 5-hydroxybenzimidazole synthase [EC:4.1.99.23]
       K25497  bzaC; 5-hydroxybenzimidazole methyltransferase [EC:2.1.1.-]
       K25498  bzaD; 5-methoxybenzimidazole methyltransferase
       K25499  bzaE; 5-methoxy-6-methylbenzimidazole methyltransferase
       K00768  E2.4.2.21, cobU, cobT; nicotinate-nucleotide--dimethylbenzimidazole phosphoribosyltransferase [EC:2.4.2.21]
       K02226  cobC, phpB; alpha-ribazole phosphatase [EC:3.1.3.73]
       K22316  rhnA-cobC; ribonuclease H / adenosylcobalamin/alpha-ribazole phosphatase [EC:3.1.26.4 3.1.3.73]
       K16651  pduX; L-threonine kinase [EC:2.7.1.177]
       K04720  cobD; threonine-phosphate decarboxylase [EC:4.1.1.81]
       K04032  eutT; ethanolamine utilization cobalamin adenosyltransferase [EC:2.5.1.154]
       K22012  cfbB; Ni-sirohydrochlorin a,c-diamide synthase [EC:6.3.5.12]
       K21610  cfbC; Ni-sirohydrochlorin a,c-diamide reductive cyclase subunit CfbC [EC:6.3.3.7]
       K21611  cfbD; Ni-sirohydrochlorin a,c-diamide reductive cyclase subunit CfbD [EC:6.3.3.7]
       K21612  cfbE; coenzyme F430 synthetase [EC:6.4.1.9]
       K03403  chlH, bchH; magnesium chelatase subunit H [EC:6.6.1.1]
       K03404  chlD, bchD; magnesium chelatase subunit D [EC:6.6.1.1]
       K03405  chlI, bchI; magnesium chelatase subunit I [EC:6.6.1.1]
       K03428  bchM, chlM; magnesium-protoporphyrin O-methyltransferase [EC:2.1.1.11]
       K04034  bchE; anaerobic magnesium-protoporphyrin IX monomethyl ester cyclase [EC:1.21.98.3]
       K04035  E1.14.13.81, acsF, chlE; magnesium-protoporphyrin IX monomethyl ester (oxidative) cyclase [EC:1.14.13.81]
       K19073  DVR; divinyl chlorophyllide a 8-vinyl-reductase [EC:1.3.1.75]
       K21231  bciB; 3,8-divinyl protochlorophyllide a 8-vinyl-reductase (ferredoxin) [EC:1.3.7.13]
       K04036  bchJ; divinyl protochlorophyllide a 8-vinyl-reductase [EC:1.-.-.-]
       K00218  por; protochlorophyllide reductase [EC:1.3.1.33]
       K04037  chlL; light-independent protochlorophyllide reductase subunit L [EC:1.3.7.7]
       K04038  chlN; light-independent protochlorophyllide reductase subunit N [EC:1.3.7.7]
       K04039  chlB; light-independent protochlorophyllide reductase subunit B [EC:1.3.7.7]
       K04040  chlG, bchG; chlorophyll/bacteriochlorophyll a synthase [EC:2.5.1.62 2.5.1.133]
       K08099  E3.1.1.14; chlorophyllase [EC:3.1.1.14]
       K13600  CAO; chlorophyllide a oxygenase [EC:1.14.13.122]
       K13606  NOL, NYC1; chlorophyll(ide) b reductase [EC:1.1.1.294]
       K18010  HCAR; 7-hydroxymethyl chlorophyll a reductase [EC:1.17.7.2]
       K22013  SGR, SGRL; magnesium dechelatase [EC:4.99.1.10]
       K13544  PPD, MES16; pheophorbidase [EC:3.1.1.82]
       K13071  PAO, ACD1; pheophorbide a oxygenase [EC:1.14.15.17]
       K13545  RCCR, ACD2; red chlorophyll catabolite reductase [EC:1.3.7.12]
       K11333  bchX; 3,8-divinyl chlorophyllide a/chlorophyllide a reductase subunit X [EC:1.3.7.14 1.3.7.15]
       K11334  bchY; 3,8-divinyl chlorophyllide a/chlorophyllide a reductase subunit Y [EC:1.3.7.14 1.3.7.15]
       K11335  bchZ; 3,8-divinyl chlorophyllide a/chlorophyllide a reductase subunit Z [EC:1.3.7.14 1.3.7.15]
       K11336  bchF; 3-vinyl bacteriochlorophyllide hydratase [EC:4.2.1.165]
       K11337  bchC; bacteriochlorophyllide a dehydrogenase [EC:1.1.1.396]
       K10960  chlP, bchP; geranylgeranyl diphosphate/geranylgeranyl-bacteriochlorophyllide a reductase [EC:1.3.1.83 1.3.1.111]
       K21058  bciC; chlorophyllide a hydrolase [EC:3.1.1.100]
       K13602  bchR; bacteriochlorophyllide d C-12(1)-methyltransferase [EC:2.1.1.331]
       K13601  bchQ; bacteriochlorophyllide d C-8(2)-methyltransferase [EC:2.1.1.332]
       K13603  bchV; 3-vinyl bacteriochlorophyllide hydratase [EC:4.2.1.169]
       K13604  bchU; bacteriochlorophyllide d C-20 methyltransferase [EC:2.1.1.333]
       K13605  bchK; bacteriochlorophyll c synthase [EC:2.5.1.-]
       K21312  bciD; bacteriochlorophyllide c C-7(1)-hydroxylase [EC:1.17.98.2]
       K07215  pigA, hemO; heme oxygenase (biliverdin-IX-beta and delta-forming) [EC:1.14.99.58]
       K07226  hutZ, hugZ; heme oxygenase (biliverdin-IX-beta and delta-forming) [EC:1.14.99.58]
       K07145  isdG, isdI; heme oxygenase (staphylobilin-producing) [EC:1.14.99.48]
       K00510  HMOX1; heme oxygenase 1 [EC:1.14.14.18]
       K21418  HMOX2; heme oxygenase 2 [EC:1.14.14.18]
       K21480  HO, pbsA1, hmuO; heme oxygenase (biliverdin-producing, ferredoxin) [EC:1.14.15.20]
       K00214  BLVRA, bvdR; biliverdin reductase [EC:1.3.1.24]
       K05901  BLVRB; biliverdin reductase / flavin reductase [EC:1.3.1.24 1.5.1.30]
       K23825  K23825; F420H(2)-dependent biliverdin reductase [EC:1.3.98.-]
       K08100  E1.3.3.5; bilirubin oxidase [EC:1.3.3.5]
       K00699  UGT; glucuronosyltransferase [EC:2.4.1.17]
       K01195  uidA, GUSB; beta-glucuronidase [EC:3.2.1.31]
       K05369  pebA; 15,16-dihydrobiliverdin:ferredoxin oxidoreductase [EC:1.3.7.2]
       K05370  pebB; phycoerythrobilin:ferredoxin oxidoreductase [EC:1.3.7.3]
       K08101  HY2; phytochromobilin:ferredoxin oxidoreductase [EC:1.3.7.4]
       K05371  pcyA; phycocyanobilin:ferredoxin oxidoreductase [EC:1.3.7.5]
       K21796  pebS; Prochlorococcus phage phycoerythrobilin synthase [EC:1.3.7.6]
       K01764  HCCS; cytochrome c heme-lyase [EC:4.4.1.17]
       K13624  CP; ceruloplasmin [EC:1.16.3.1]
       K14735  HEPH; hephaestin [EC:1.16.3.1]
       K19054  FXN; frataxin [EC:1.16.3.1]
       K00522  FTH1; ferritin heavy chain [EC:1.16.3.1]
       K13625  FTL; ferritin light chain
       K18495  FTMT; ferritin, mitochondrial [EC:1.16.3.1]
       K03594  bfr; bacterioferritin [EC:1.16.3.1]
       K22336  bfrB; bacterioferritin B [EC:1.16.3.1]
       K22552  mmcO; multicopper oxidase [EC:1.16.3.1]