Conserved Domains and Related Protein Families
Conserved Domains Detected by RPS-BLAST
Original result of RPS-BLAST against CDD database
ID Alignment Graph Length
Definition
E-value
Query 69
pfam00762 311
pfam00762, Ferrochelatase, Ferrochelatase
2e-07
PRK00035 333
PRK00035, hemH, ferrochelatase; Reviewed
5e-07
COG0276 320
COG0276, HemH, Protoheme ferro-lyase (ferrochelata
1e-05
PRK12435 311
PRK12435, PRK12435, ferrochelatase; Provisional
3e-05
TIGR00109 322
TIGR00109, hemH, ferrochelatase
0.003
>gnl|CDD|216106 pfam00762, Ferrochelatase, Ferrochelatase
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Score = 45.6 bits (109), Expect = 2e-07
Identities = 15/32 (46%), Positives = 19/32 (59%)
Query: 4 EQLKVDNIRRAAAPNDHPLFIDALVDIVSSHL 35
E+ +N RR ND P FI+AL D+V HL
Sbjct: 280 EEAGGENYRRIPCLNDSPAFIEALADLVREHL 311
>gnl|CDD|234585 PRK00035, hemH, ferrochelatase; Reviewed
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Score = 44.0 bits (105), Expect = 5e-07
Identities = 13/33 (39%), Positives = 19/33 (57%)
Query: 4 EQLKVDNIRRAAAPNDHPLFIDALVDIVSSHLR 36
E+ + RR ND P FI+AL D+V +L+
Sbjct: 292 EEAGGEEFRRIPCLNDSPEFIEALADLVRENLQ 324
>gnl|CDD|223353 COG0276, HemH, Protoheme ferro-lyase (ferrochelatase) [Coenzyme metabolism]
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Score = 40.3 bits (95), Expect = 1e-05
Identities = 13/32 (40%), Positives = 15/32 (46%)
Query: 4 EQLKVDNIRRAAAPNDHPLFIDALVDIVSSHL 35
E+ R ND P FIDAL D+V L
Sbjct: 287 EEAGGKKYVRIPCLNDSPEFIDALADLVRELL 318
>gnl|CDD|183526 PRK12435, PRK12435, ferrochelatase; Provisional
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Score = 39.2 bits (92), Expect = 3e-05
Identities = 14/26 (53%), Positives = 16/26 (61%)
Query: 13 RAAAPNDHPLFIDALVDIVSSHLRSK 38
R PN PLFIDAL D+V L+S
Sbjct: 285 RPEMPNADPLFIDALADVVLKKLKSV 310
>gnl|CDD|232827 TIGR00109, hemH, ferrochelatase
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Score = 33.6 bits (77), Expect = 0.003
Identities = 11/32 (34%), Positives = 15/32 (46%)
Query: 4 EQLKVDNIRRAAAPNDHPLFIDALVDIVSSHL 35
E D +R A N P FI+A+ +V L
Sbjct: 290 EDAGGDKYQRCPALNAKPEFIEAMATLVKKKL 321
Human ferrochelatase, found at the mitochondrial inner membrane inner surface, was shown in an active recombinant form to be a homodimer. This contrasts to an earlier finding by gel filtration that overexpressed E. coli ferrochelatase runs as a monomer [Biosynthesis of cofactors, prosthetic groups, and carriers, Heme, porphyrin, and cobalamin]. Length = 322
Conserved Domains Detected by HHsearch
Original result of HHsearch against CDD database
ID Alignment Graph Length
Definition
Probability
Query
69
KOG1321|consensus 395
99.71
PLN02449 485
ferrochelatase
98.84
PF00762 316
Ferrochelatase: Ferrochelatase; InterPro: IPR00101
98.8
COG0276 320
HemH Protoheme ferro-lyase (ferrochelatase) [Coenz
98.69
PRK12435 311
ferrochelatase; Provisional
98.57
TIGR00109 322
hemH ferrochelatase. Human ferrochelatase, found a
98.53
PRK00035 333
hemH ferrochelatase; Reviewed
98.12
COG0276
320
HemH Protoheme ferro-lyase (ferrochelatase) [Coenz
85.57
PLN02757 154
sirohydrochlorine ferrochelatase
84.3
PRK12435
311
ferrochelatase; Provisional
83.56
>KOG1321|consensus
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Probab=99.71 E-value=6.4e-18 Score=125.38 Aligned_cols=67 Identities=37% Similarity=0.750 Sum_probs=63.7
Q ss_pred hhhhcCCCceEEccCCCCCHHHHHHHHHHHHHhhhcCCCCCcccCCCCCCCCCcchhhhHHHHhhhh
Q psy45 2 AEEQLKVDNIRRAAAPNDHPLFIDALVDIVSSHLRSKTKINPKFLNRCPHCVNPKCSQAKQWFSQLC 68 (69)
Q Consensus 2 ~A~e~G~~~~~Rvp~LNd~p~fI~aLadlV~~~l~~~~~~s~q~~~~Cp~c~~~~c~~~~~~f~~~~ 68 (69)
.|.+.|++++.|+|+||++|.||++|||+|.+||.+.+.+|.|+..+||+|+||.|++.+.||++++
T Consensus 327 ~a~k~gve~~~Rv~sln~~p~fI~~lADlV~ehL~s~~~~s~q~l~~~~~~~ne~~~e~~s~~~~~~ 393 (395)
T KOG1321|consen 327 EALKKGVENWKRVESLNGNPTFIEGLADLVAEHLKSNQAYSNQFLARCPGCSNEPCKEAKSWFGNHE 393 (395)
T ss_pred HHHHHhhhhheeccCCCCCccHHHHHHHHHHHhhhhhhhcchhhhhhCcCcCChhhhHHHHHHHHhh
Confidence 4667889999999999999999999999999999999999999888899999999999999999986
>PLN02449 ferrochelatase
Back Show alignment and domain information
Probab=98.84 E-value=5.3e-09 Score=80.53 Aligned_cols=37 Identities=27% Similarity=0.270 Sum_probs=34.3
Q ss_pred ChhhhcCCCceEEccCCCCCHHHHHHHHHHHHHhhhc
Q psy45 1 MAEEQLKVDNIRRAAAPNDHPLFIDALVDIVSSHLRS 37 (69)
Q Consensus 1 ~~A~e~G~~~~~Rvp~LNd~p~fI~aLadlV~~~l~~ 37 (69)
++|+++|+++|.|+|+|||+|.||++|+++|.+++..
T Consensus 379 e~a~e~G~~~~~rVP~LN~~p~FI~~La~lV~~~l~~ 415 (485)
T PLN02449 379 ELALESGIENWGRVPALGCEPTFISDLADAVIEALPY 415 (485)
T ss_pred HHHHHcCCceEEEcCCCCCCHHHHHHHHHHHHHHhhc
Confidence 3678999989999999999999999999999999875
>PF00762 Ferrochelatase: Ferrochelatase; InterPro: IPR001015 Synonym(s): Protohaem ferro-lyase, Iron chelatase, etc
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Probab=98.80 E-value=3.6e-09 Score=76.97 Aligned_cols=34 Identities=38% Similarity=0.566 Sum_probs=27.8
Q ss_pred hhhhcCCCceEEccCCCCCHHHHHHHHHHHHHhh
Q psy45 2 AEEQLKVDNIRRAAAPNDHPLFIDALVDIVSSHL 35 (69)
Q Consensus 2 ~A~e~G~~~~~Rvp~LNd~p~fI~aLadlV~~~l 35 (69)
+|+++|+++|.|+|+|||+|.||++|+++|.++|
T Consensus 283 ~~~~~G~~~~~~ip~lN~~~~fi~~La~~v~~~~ 316 (316)
T PF00762_consen 283 LAEEAGGEEFVRIPCLNDSPEFIEALADLVREHL 316 (316)
T ss_dssp HHHHHTCCEEEE---STT-HHHHHHHHHHHHHHH
T ss_pred HHHHcCCceEEEeCCCCCCHHHHHHHHHHHHhCc
Confidence 5789999999999999999999999999998875
Ferrochelatase catalyses the last step in haem biosynthesis: the chelation of a ferrous ion to proto-porphyrin IX, to form protohaem [, ]. In eukaryotic cells, it binds to the mitochondrial inner membrane with its active site on the matrix side of the membrane. The X-ray structure of Bacillus subtilis and human ferrochelatase have been solved [, ]. The human enzyme exists as a homodimer. Each subunit contains one [2Fe-2S] cluster. The monomer is folded into two similar domains, each with a four-stranded parallel beta-sheet flanked by an alpha-helix in a beta-alpha-beta motif that is reminiscent of the fold found in the periplasmic binding proteins. The topological similarity between the domains suggests that they have arisen from a gene duplication event. However, significant differences exist between the two domains, including an N-terminal section (residues 80-130) that forms part of the active site pocket, and a C-terminal extension (residues 390-423) that is involved in coordination of the [2Fe-2S] cluster and in stabilisation of the homodimer. Ferrochelatase seems to have a structurally conserved core region that is common to the enzyme from bacteria, plants and mammals. Porphyrin binds in the identified cleft; this cleft also includes the metal-binding site of the enzyme. It is likely that the structure of the cleft region will have different conformations upon substrate binding and release [].; GO: 0004325 ferrochelatase activity, 0006783 heme biosynthetic process; PDB: 2QD3_B 2HRE_C 3HCN_B 2PNJ_A 2QD1_C 1HRK_A 2QD4_B 3AQI_B 2HRC_B 3HCO_B ....
>COG0276 HemH Protoheme ferro-lyase (ferrochelatase) [Coenzyme metabolism]
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Probab=98.69 E-value=1.7e-08 Score=74.43 Aligned_cols=35 Identities=37% Similarity=0.459 Sum_probs=31.7
Q ss_pred hhhhcCCCceEEccCCCCCHHHHHHHHHHHHHhhh
Q psy45 2 AEEQLKVDNIRRAAAPNDHPLFIDALVDIVSSHLR 36 (69)
Q Consensus 2 ~A~e~G~~~~~Rvp~LNd~p~fI~aLadlV~~~l~ 36 (69)
++++.|+.+|.|+|||||+|.||++|+++|.+++.
T Consensus 285 ~~~~~Gg~~y~rip~lN~~p~fi~~la~lv~~~~~ 319 (320)
T COG0276 285 LAEEAGGKKYVRIPCLNDSPEFIDALADLVRELLN 319 (320)
T ss_pred HHHHhCCccEEecCCCCCCHHHHHHHHHHHHHHhc
Confidence 57899988999999999999999999999987753
>PRK12435 ferrochelatase; Provisional
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Probab=98.57 E-value=6.2e-08 Score=70.55 Aligned_cols=34 Identities=38% Similarity=0.689 Sum_probs=30.9
Q ss_pred hhhhcCCCceEEccCCCCCHHHHHHHHHHHHHhhh
Q psy45 2 AEEQLKVDNIRRAAAPNDHPLFIDALVDIVSSHLR 36 (69)
Q Consensus 2 ~A~e~G~~~~~Rvp~LNd~p~fI~aLadlV~~~l~ 36 (69)
+|+++|++ |.|+|+|||+|.||++|+++|.+++.
T Consensus 275 ~a~~~G~~-~~r~~~lN~~p~fi~~La~lv~~~~~ 308 (311)
T PRK12435 275 VTDEIGAK-YYRPEMPNADPLFIDALADVVLKKLK 308 (311)
T ss_pred HHHHcCCc-EEeccCCCCCHHHHHHHHHHHHHHHh
Confidence 57899995 99999999999999999999988763
>TIGR00109 hemH ferrochelatase
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Probab=98.53 E-value=8.9e-08 Score=69.65 Aligned_cols=34 Identities=32% Similarity=0.489 Sum_probs=31.0
Q ss_pred hhhhcCCCceEEccCCCCCHHHHHHHHHHHHHhh
Q psy45 2 AEEQLKVDNIRRAAAPNDHPLFIDALVDIVSSHL 35 (69)
Q Consensus 2 ~A~e~G~~~~~Rvp~LNd~p~fI~aLadlV~~~l 35 (69)
.+++.|+++|.|+|+|||+|.||++|+++|.+++
T Consensus 288 ~~~~~G~~~~~~vp~lN~~p~fi~~l~~~v~~~~ 321 (322)
T TIGR00109 288 VAEDAGGDKYQRCPALNAKPEFIEAMATLVKKKL 321 (322)
T ss_pred HHHHcCCCeEEECCCCCCCHHHHHHHHHHHHHhh
Confidence 4678999889999999999999999999998764
Human ferrochelatase, found at the mitochondrial inner membrane inner surface, was shown in an active recombinant form to be a homodimer. This contrasts to an earlier finding by gel filtration that overexpressed E. coli ferrochelatase runs as a monomer.
>PRK00035 hemH ferrochelatase; Reviewed
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Probab=98.12 E-value=3.2e-06 Score=61.05 Aligned_cols=35 Identities=37% Similarity=0.586 Sum_probs=31.4
Q ss_pred hhhhcCCCceEEccCCCCCHHHHHHHHHHHHHhhh
Q psy45 2 AEEQLKVDNIRRAAAPNDHPLFIDALVDIVSSHLR 36 (69)
Q Consensus 2 ~A~e~G~~~~~Rvp~LNd~p~fI~aLadlV~~~l~ 36 (69)
++.+.|++.|.|+|+||++|.||++|+++|.+++.
T Consensus 290 ~~~~~G~~~~~~~~~ln~~~~~i~~l~~~v~~~~~ 324 (333)
T PRK00035 290 IAEEAGGEEFRRIPCLNDSPEFIEALADLVRENLQ 324 (333)
T ss_pred HHHHcCCceEEECCCCCCCHHHHHHHHHHHHHHhc
Confidence 46789998899999999999999999999988763
>COG0276 HemH Protoheme ferro-lyase (ferrochelatase) [Coenzyme metabolism]
Back Show alignment and domain information
Probab=85.57 E-value=1.3 Score=32.99 Aligned_cols=32 Identities=28% Similarity=0.433 Sum_probs=28.3
Q ss_pred CCCceEEccCCCCCHHHHHHHHHHHHHhhhcC
Q psy45 7 KVDNIRRAAAPNDHPLFIDALVDIVSSHLRSK 38 (69)
Q Consensus 7 G~~~~~Rvp~LNd~p~fI~aLadlV~~~l~~~ 38 (69)
|...+.-|+...++|.||+++|+.|.+++++-
T Consensus 149 ~~~~i~~I~~~~~~p~yI~a~a~~I~~~~~~~ 180 (320)
T COG0276 149 GQPKISTIPDYYDEPLYIEALADSIREKLAKH 180 (320)
T ss_pred CCCceEEecCccCChHHHHHHHHHHHHHHHhc
Confidence 44469999999999999999999999998774
>PLN02757 sirohydrochlorine ferrochelatase
Back Show alignment and domain information
Probab=84.30 E-value=2.7 Score=27.89 Aligned_cols=31 Identities=23% Similarity=0.196 Sum_probs=27.3
Q ss_pred CCCceEEccCCCCCHHHHHHHHHHHHHhhhcC
Q psy45 7 KVDNIRRAAAPNDHPLFIDALVDIVSSHLRSK 38 (69)
Q Consensus 7 G~~~~~Rvp~LNd~p~fI~aLadlV~~~l~~~ 38 (69)
|+ +|...+.|+++|.+++.|.+.+.+++...
T Consensus 105 ~~-~i~~~~pLG~~p~l~~ll~~Ri~eal~~~ 135 (154)
T PLN02757 105 GV-KYLVTAPIGLHELMVDVVNDRIKYCLSHV 135 (154)
T ss_pred Cc-EEEECCCCCCCHHHHHHHHHHHHHHhhcc
Confidence 44 58999999999999999999999888665
>PRK12435 ferrochelatase; Provisional
Back Show alignment and domain information
Probab=83.56 E-value=1.6 Score=31.94 Aligned_cols=31 Identities=19% Similarity=0.218 Sum_probs=26.5
Q ss_pred CCCceEEccCCCCCHHHHHHHHHHHHHhhhc
Q psy45 7 KVDNIRRAAAPNDHPLFIDALVDIVSSHLRS 37 (69)
Q Consensus 7 G~~~~~Rvp~LNd~p~fI~aLadlV~~~l~~ 37 (69)
+...+..++...++|.||++|++.|.+++..
T Consensus 136 ~~~~~~~i~~~~~~p~yi~a~a~~I~~~l~~ 166 (311)
T PRK12435 136 GGPTITSIESWYDEPKFIQYWADQIKETFAQ 166 (311)
T ss_pred CCCeEEEeCCccCChHHHHHHHHHHHHHHHH
Confidence 3446889999999999999999999888743
Homologous Structure Domains