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X - Possible homology level

H - Homology level

T - Topology level

F - Family level

* - Provisional representative


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Evolutionary classification of protein domain structures

alpha arraysalpha-helix arrays with mainly perpendicular helices

alpha bundlesalpha-helix bundles with mainly parallel helices

alpha superhelicesrepeating alpha-helix hairpins form a superhelix

alpha duplicates or obligate multimersalpha duplicates or monomers associate together to form a compact domain

alpha complex topologyalpha domain with complex and unique topology that cannot be described as array or bundle or superhelix

beta barrelssingle beta-sheet folded upon itself to form a barrel

beta meanderssingle beta-sheet with mainly meander topology

beta sandwichestwo beta-sheets stacked together to form a sandwich

beta duplicates or obligate multimersbeta duplicates or monomers associate together to form a compact domain

beta complex topologybeta domains with complex and unique topology that cannot be described as barrel or sandwich or meander

a+b two layersone alpha-helix layer and one beta-sheet layer

a+b three layersone mainly antiparallel beta-sheet layer sandwiched between two alpha-helix layers

X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4
H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4
T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4
F: NIR_SIR

PF01077

Representatives:

e1aopA3[A:149-183,A:210-345] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

SULFITE REDUCTASE HEMOPROTEIN ; ligands: PO4,SRM ; X-RAY DIFFRACTION 1.6Å

e2aopA4[A:426-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.75Å

e2gepA4[A:426-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.9Å

e3aopA4[A:426-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.1Å

e3geoA4[A:426-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.10Å

e4aopA4[A:426-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.8Å

e4gepA4[A:426-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.00Å

e5aopA4[A:426-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.2Å

e5gepA4[A:426-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: CMO,SF4,SRM ; X-RAY DIFFRACTION 2.10Å

e6gepA4[A:426-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.80Å

e7gepA4[A:426-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.4Å

e8gepA4[A:426-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.2Å

e4g38A7[A:418-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [NADPH] hemoprotein beta-component ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.56Å

e4g39A7[A:418-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [NADPH] hemoprotein beta-component ; ligands: K,SF4,SRM ; X-RAY DIFFRACTION 2.400Å

e4htrA7[A:418-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [NADPH] hemoprotein beta-component ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.560Å

e6c3mA3[A:418-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [NADPH] hemoprotein beta-component ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.5Å

e6c3xA1[A:426-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [NADPH] hemoprotein beta-component ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.5Å

e6c3yA1[A:426-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [NADPH] hemoprotein beta-component ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.5Å

e6c3zA3[A:418-570] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [NADPH] hemoprotein beta-component ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.681Å

e5aopA3[A:149-183,A:210-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: SRM ; X-RAY DIFFRACTION 2.2Å

e7gepA3[A:149-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: SRM,SX ; X-RAY DIFFRACTION 2.4Å

e3aopA3[A:149-183,A:212-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: PO4,SRM ; X-RAY DIFFRACTION 2.1Å

e4aopA3[A:149-183,A:212-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: PO4,SRM ; X-RAY DIFFRACTION 1.8Å

e6gepA3[A:149-183,A:210-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: NO,SRM ; X-RAY DIFFRACTION 1.80Å

e4gepA3[A:149-183,A:210-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: CYN,SRM ; X-RAY DIFFRACTION 2.00Å

e3geoA3[A:150-183,A:210-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: NO2,SRM ; X-RAY DIFFRACTION 2.10Å

e8gepA3[A:149-183,A:210-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: NO3,SRM ; X-RAY DIFFRACTION 2.2Å

e2aopA3[A:149-183,A:210-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: PO4,SRM ; X-RAY DIFFRACTION 1.75Å

e5gepA3[A:149-183,A:210-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: CMO,SRM ; X-RAY DIFFRACTION 2.10Å

e2gepA3[A:149-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE HEMOPROTEIN ; ligands: SO3,SRM ; X-RAY DIFFRACTION 1.9Å

e1zj9A3[A:407-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROBABLE FERREDOXIN-DEPENDENT NITRITE REDUCTASE NIRA ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.9Å

e1zj9B3[B:407-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROBABLE FERREDOXIN-DEPENDENT NITRITE REDUCTASE NIRA ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.9Å

e1zj8B3[B:407-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Probable ferredoxin-dependent nitrite reductase NirA ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.8Å

e1zj9A4[A:162-326] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROBABLE FERREDOXIN-DEPENDENT NITRITE REDUCTASE NIRA ; ligands: CL,SRM ; X-RAY DIFFRACTION 2.9Å

e1zj9B4[B:162-326] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROBABLE FERREDOXIN-DEPENDENT NITRITE REDUCTASE NIRA ; ligands: CL,SRM ; X-RAY DIFFRACTION 2.9Å

e1zj8B4[B:162-326] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Probable ferredoxin-dependent nitrite reductase NirA ; ligands: CL,SRM ; X-RAY DIFFRACTION 2.8Å

e3b0gA3[A:430-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,K,SF4,SRM ; X-RAY DIFFRACTION 1.25Å

e3b0hA3[A:431-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrite reductase ; ligands: CL,K,SF4,SRM ; X-RAY DIFFRACTION 2.3Å

e3b0jA3[A:430-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,K,SF4,SRM ; X-RAY DIFFRACTION 1.7Å

e3b0mA3[A:430-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,K,SF4,SRM ; X-RAY DIFFRACTION 1.9Å

e3b0nA3[A:430-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,K,SF4,SRM ; X-RAY DIFFRACTION 2.0Å

e3vkpA3[A:430-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,K,SF4,SRM ; X-RAY DIFFRACTION 1.4Å

e3b0gA1[A:175-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,SRM ; X-RAY DIFFRACTION 1.25Å

e3b0hA1[A:175-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrite reductase ; ligands: CL,SRM ; X-RAY DIFFRACTION 2.3Å

e3b0jA1[A:175-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,SRM ; X-RAY DIFFRACTION 1.7Å

e3b0mA1[A:175-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,SRM ; X-RAY DIFFRACTION 1.9Å

e3b0nA1[A:175-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,SRM ; X-RAY DIFFRACTION 2.0Å

e3vkpA1[A:175-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,NO2,SRM ; X-RAY DIFFRACTION 1.4Å

e3vlxA1[A:175-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,SRM ; X-RAY DIFFRACTION 1.35Å

e3vlxA3[A:430-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,K,SF4,SRM ; X-RAY DIFFRACTION 1.35Å

e4g38A5[A:141-183,A:215-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [NADPH] hemoprotein beta-component ; ligands: PO4,SRM ; X-RAY DIFFRACTION 1.56Å

e3vksA11[A:430-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,K,SF4,SRM ; X-RAY DIFFRACTION 1.4Å

e3vkrA11[A:430-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,K,SF4,SRM ; X-RAY DIFFRACTION 1.6Å

e3vkqA11[A:430-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,K,SF4,SRM ; X-RAY DIFFRACTION 1.6Å

e3vlyA11[A:430-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,K,SF4,SRM ; X-RAY DIFFRACTION 1.55Å

e3vm1A11[A:430-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,K,SF4,SRM ; X-RAY DIFFRACTION 1.5Å

e3vm0A11[A:430-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,K,SF4,SRM ; X-RAY DIFFRACTION 1.7Å

e3b0lA8[A:430-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrite reductase ; ligands: CL,K,SF4,SRM ; X-RAY DIFFRACTION 1.700Å

e3vlzA11[A:430-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,K,SF4,SRM ; X-RAY DIFFRACTION 2.07Å

e3b0hB11[B:431-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrite reductase ; ligands: CL,K,SF4,SRM ; X-RAY DIFFRACTION 2.3Å

e3vktA8[A:430-555] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,K,SF4,SRM ; X-RAY DIFFRACTION 1.3Å

e3vksA12[A:175-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,NO,SRM ; X-RAY DIFFRACTION 1.4Å

e3vkrA12[A:175-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,NO2,SRM ; X-RAY DIFFRACTION 1.6Å

e3vkqA12[A:175-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,NO2,SRM ; X-RAY DIFFRACTION 1.6Å

e3vlyA12[A:175-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,SO3,SRM ; X-RAY DIFFRACTION 1.55Å

e3vm1A12[A:175-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: BCT,CL,SRM ; X-RAY DIFFRACTION 1.5Å

e3vm0A12[A:175-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,NO2,SRM ; X-RAY DIFFRACTION 1.7Å

e3b0lA9[A:175-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrite reductase ; ligands: CL,SRM ; X-RAY DIFFRACTION 1.700Å

e3vlzA12[A:175-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,SO3,SRM ; X-RAY DIFFRACTION 2.07Å

e3b0hB12[B:175-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrite reductase ; ligands: CL,SRM ; X-RAY DIFFRACTION 2.3Å

e3vktA9[A:175-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITRITE REDUCTASE ; ligands: CL,HOA,SRM ; X-RAY DIFFRACTION 1.3Å

e3mm5B6[B:124-195,B:261-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit beta ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.8Å

e3mm5A5[A:167-239,A:306-417] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit alpha ; ligands: SF4,SO3,SRM ; X-RAY DIFFRACTION 1.8Å

e4g39A5[A:141-183,A:210-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [NADPH] hemoprotein beta-component ; ligands: PO4,SRM ; X-RAY DIFFRACTION 2.400Å

e4htrA5[A:141-183,A:215-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [NADPH] hemoprotein beta-component ; ligands: SO3,SRM ; X-RAY DIFFRACTION 1.560Å

e2xsjB9[B:135-206,B:283-386] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE BETA SUBUNIT ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.53Å

e2xsjE9[E:135-206,E:283-386] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE BETA SUBUNIT ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.53Å

e2v4jE12[E:135-207,E:279-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE, DISSIMILATORY-TYPE SUBUNIT BETA ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.1Å

e2v4jB12[B:135-207,B:279-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE, DISSIMILATORY-TYPE SUBUNIT BETA ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.1Å

e3or1B9[B:135-207,B:279-386] Image Pymol Jmol Links: PDB, SCOP, CATH

SULFITE REDUCTASE BETA ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.76Å

e3or1E9[E:135-207,E:279-386] Image Pymol Jmol Links: PDB, SCOP, CATH

SULFITE REDUCTASE BETA ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.76Å

e3or2B9[B:135-207,B:279-386] Image Pymol Jmol Links: PDB, SCOP, CATH

SULFITE REDCUTASE SUBUNIT BETA ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.05Å

e3or2E9[E:135-207,E:279-386] Image Pymol Jmol Links: PDB, SCOP, CATH

SULFITE REDCUTASE SUBUNIT BETA ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.05Å

e3mm5E12[E:124-195,E:261-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit beta ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.8Å

e3mm9B12[B:124-195,B:261-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit beta ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.010Å

e3mm9E12[E:124-195,E:261-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit beta ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.010Å

e3mmcE12[E:124-195,E:261-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE, DISSIMILATORY-TYPE SUBUNIT BETA ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.04Å

e3mm6B12[B:124-195,B:261-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit beta ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.900Å

e3mm6E12[E:124-195,E:261-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit beta ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.900Å

e3mm8B12[B:124-195,B:261-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit beta ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.28Å

e3mmaB12[B:124-195,B:261-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit beta ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.30Å

e3mm7B12[B:124-195,B:261-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit beta ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.90Å

e3mm7E12[E:124-195,E:261-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit beta ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.90Å

e3mm8E12[E:124-195,E:261-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit beta ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.28Å

e3mmaE12[E:124-195,E:261-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit beta ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.30Å

e3mmbB12[B:124-195,B:261-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit beta ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.3Å

e3mmbE12[E:124-195,E:261-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit beta ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.3Å

e3or1A8[A:169-239,A:322-437] Image Pymol Jmol Links: PDB, SCOP, CATH

SULFITE REDUCTASE ALPHA ; ligands: SF4,SO3,SRM ; X-RAY DIFFRACTION 1.76Å

e2xsjA8[A:169-241,A:324-437] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE ALPHA SUBUNIT ; ligands: SF4,SO3,SRM ; X-RAY DIFFRACTION 2.53Å

e2xsjD8[D:169-241,D:324-437] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE ALPHA SUBUNIT ; ligands: SF4,SO3,SRM ; X-RAY DIFFRACTION 2.53Å

e2v4jA8[A:169-239,A:322-437] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE, DISSIMILATORY-TYPE SUBUNIT ALPHA ; ligands: SF4,SO3,SRM ; X-RAY DIFFRACTION 2.1Å

e2v4jD8[D:169-239,D:322-437] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE, DISSIMILATORY-TYPE SUBUNIT ALPHA ; ligands: SF4,SO3,SRM ; X-RAY DIFFRACTION 2.1Å

e3or2A8[A:169-239,A:322-437] Image Pymol Jmol Links: PDB, SCOP, CATH

SULFITE REDCUTASE SUBUNIT ALPHA ; ligands: SF4,SO3,SRM ; X-RAY DIFFRACTION 2.05Å

e3or2D8[D:169-239,D:322-437] Image Pymol Jmol Links: PDB, SCOP, CATH

SULFITE REDCUTASE SUBUNIT ALPHA ; ligands: SF4,SO3,SRM ; X-RAY DIFFRACTION 2.05Å

e3mm5D11[D:167-239,D:306-417] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit alpha ; ligands: SF4,SO3,SRM ; X-RAY DIFFRACTION 1.8Å

e3mm6A11[A:167-239,A:306-417] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit alpha ; ligands: CYN,SF4,SRM ; X-RAY DIFFRACTION 1.900Å

e3mm6D11[D:167-239,D:306-417] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit alpha ; ligands: CYN,SF4,SRM ; X-RAY DIFFRACTION 1.900Å

e3mm7A11[A:167-239,A:306-417] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit alpha ; ligands: CMO,SF4,SRM ; X-RAY DIFFRACTION 1.90Å

e3mm8D11[D:167-239,D:306-417] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit alpha ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.28Å

e3mmaA11[A:167-239,A:306-417] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit alpha ; ligands: PO4,SF4,SRM ; X-RAY DIFFRACTION 2.30Å

e3mmcD11[D:167-239,D:306-417] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE, DISSIMILATORY-TYPE SUBUNIT ALPHA ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.04Å

e3mm7D11[D:167-239,D:306-417] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit alpha ; ligands: SF4,SRM ; X-RAY DIFFRACTION 1.90Å

e3mm8A11[A:167-239,A:306-417] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit alpha ; ligands: NO3,SF4,SRM ; X-RAY DIFFRACTION 2.28Å

e3mm9A11[A:167-239,A:306-417] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit alpha ; ligands: NO2,SF4,SRM ; X-RAY DIFFRACTION 2.010Å

e3mmbA11[A:167-239,A:306-417] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit alpha ; ligands: H2S,SF4,SRM ; X-RAY DIFFRACTION 2.3Å

e3mmbD11[D:167-239,D:306-417] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit alpha ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.3Å

e3or1D8[D:169-239,D:322-437] Image Pymol Jmol Links: PDB, SCOP, CATH

SULFITE REDUCTASE ALPHA ; ligands: SF4,SO3,SRM ; X-RAY DIFFRACTION 1.76Å

e3mm9D11[D:167-239,D:306-417] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit alpha ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.010Å

e3mmaD11[D:167-239,D:306-417] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase, dissimilatory-type subunit alpha ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.30Å

e5h8vA2[A:482-628] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [ferredoxin], chloroplastic ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.20Å

e5h8vB1[B:482-628] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [ferredoxin], chloroplastic ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.20Å

e5h8yA3[A:482-628] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [ferredoxin], chloroplastic ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.20Å

e5h8yB4[B:482-628] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [ferredoxin], chloroplastic ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.20Å

e5h8yC1[C:482-628] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [ferredoxin], chloroplastic ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.20Å

e5h8yD3[D:482-628] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [ferredoxin], chloroplastic ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.20Å

e5h92A3[A:482-629] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [ferredoxin], chloroplastic ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.08Å

e5h92B2[B:482-634] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [ferredoxin], chloroplastic ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.08Å

e5h8vA1[A:189-402] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [ferredoxin], chloroplastic ; ligands: MG,PO4,SRM ; X-RAY DIFFRACTION 2.20Å

e5h8vB2[B:189-402] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [ferredoxin], chloroplastic ; ligands: MG,PO4,SRM ; X-RAY DIFFRACTION 2.20Å

e5h8yA4[A:189-402] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [ferredoxin], chloroplastic ; ligands: CL,SRM ; X-RAY DIFFRACTION 2.20Å

e5h8yB3[B:189-402] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [ferredoxin], chloroplastic ; ligands: CL,SRM ; X-RAY DIFFRACTION 2.20Å

e5h8yC2[C:189-402] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [ferredoxin], chloroplastic ; ligands: CL,SRM ; X-RAY DIFFRACTION 2.20Å

e5h8yD4[D:189-402] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [ferredoxin], chloroplastic ; ligands: CL,SRM ; X-RAY DIFFRACTION 2.20Å

e5h92A2[A:189-402] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [ferredoxin], chloroplastic ; ligands: PO4,SRM ; X-RAY DIFFRACTION 2.08Å

e5h92B4[B:189-402] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [ferredoxin], chloroplastic ; ligands: PO4,SRM ; X-RAY DIFFRACTION 2.08Å

e6c3mA4[A:141-183,A:210-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [NADPH] hemoprotein beta-component ; ligands: PO4,SRM ; X-RAY DIFFRACTION 1.5Å

e6c3xA3[A:147-183,A:210-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [NADPH] hemoprotein beta-component ; ligands: PO4,SRM ; X-RAY DIFFRACTION 1.5Å

e6c3yA2[A:148-183,A:210-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [NADPH] hemoprotein beta-component ; ligands: PO4,SRM ; X-RAY DIFFRACTION 1.5Å

e6c3zA2[A:141-183,A:210-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sulfite reductase [NADPH] hemoprotein beta-component ; ligands: PO4,SRM ; X-RAY DIFFRACTION 1.681Å

e7np8A2[A:416-619] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: GOL,MPD,SF4,SO3,SRM ; X-RAY DIFFRACTION 2.299Å

e7np8C2[C:416-619] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: CL,GOL,MPD,SF4,SO3,SRM ; X-RAY DIFFRACTION 2.299Å

e7np8D2[D:416-620] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: CA,FE,GOL,SF4,SO3,SRM ; X-RAY DIFFRACTION 2.299Å

e7npaB2[B:416-618] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: CL,EDO,GOL,H2S,SF4,SO4,SRM ; X-RAY DIFFRACTION 1.550Å

e7npaC2[C:416-618] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: CL,EDO,GOL,H2S,LI,SF4,SO4,SRM ; X-RAY DIFFRACTION 1.550Å

e7npaD2[D:416-618] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: CL,EDO,H2S,PEG,SF4,SO4,SRM ; X-RAY DIFFRACTION 1.550Å

e7npaE2[E:416-618] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: CL,EDO,GOL,H2S,SF4,SO4,SRM ; X-RAY DIFFRACTION 1.550Å

e7npaF2[F:416-618] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: CL,EDO,GOL,H2S,LI,SF4,SO4,SRM ; X-RAY DIFFRACTION 1.550Å

e7npaG2[G:416-618] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: CL,EDO,GOL,H2S,SF4,SO4,SRM ; X-RAY DIFFRACTION 1.550Å

e7npaH2[H:416-618] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: CL,EDO,H2S,LI,SF4,SO4,SRM,TRS ; X-RAY DIFFRACTION 1.550Å

e7npaI2[I:416-618] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: CL,EDO,GOL,H2S,SF4,SO4,SRM ; X-RAY DIFFRACTION 1.550Å

e7npaJ2[J:416-618] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: CL,EDO,GOL,H2S,LI,SF4,SO4,SRM ; X-RAY DIFFRACTION 1.550Å

e7npaK2[K:416-618] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: CL,EDO,H2S,PEG,SF4,SO4,SRM ; X-RAY DIFFRACTION 1.550Å

e7npaL2[L:416-618] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: CL,EDO,GOL,H2S,LI,SF4,SO4,SRM ; X-RAY DIFFRACTION 1.550Å

e7npaM2[M:416-618] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: CL,EDO,GOL,H2S,SF4,SO4,SRM ; X-RAY DIFFRACTION 1.550Å

e7npaN2[N:416-618] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: CL,EDO,GOL,H2S,LI,PEG,SF4,SO4,SRM ; X-RAY DIFFRACTION 1.550Å

e7npaO2[O:416-618] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: CL,EDO,GOL,H2S,PEG,SF4,SO4,SRM ; X-RAY DIFFRACTION 1.550Å

e7npaP2[P:416-618] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Coenzyme F420-dependent sulfite reductase ; ligands: CL,EDO,GOL,H2S,LI,SF4,SO4,SRM ; X-RAY DIFFRACTION 1.550Å

e3mmcA3[A:167-238,A:305-417] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE, DISSIMILATORY-TYPE SUBUNIT ALPHA ; ligands: GOL,SF4,SRM ; X-RAY DIFFRACTION 2.04Å

e3mmcB3[B:123-196,B:262-366] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SULFITE REDUCTASE, DISSIMILATORY-TYPE SUBUNIT BETA ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.04Å

e1zj8A3[A:407-555] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Probable ferredoxin-dependent nitrite reductase NirA ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.8Å

e1zj8A4[A:162-326] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Probable ferredoxin-dependent nitrite reductase NirA ; ligands: CL,SRM ; X-RAY DIFFRACTION 2.8Å

e2akjA3[A:431-556] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ferredoxin--nitrite reductase, chloroplast ; ligands: SF4,SRM ; X-RAY DIFFRACTION 2.80Å

e2akjA4[A:175-345] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ferredoxin--nitrite reductase, chloroplast ; ligands: SRM ; X-RAY DIFFRACTION 2.80Å

F: Unmapped domains

Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.

a+b four layerstwo beta-sheet layers sandwiched between two alpha-helix layers

a+b complex topologyalpha and beta domain with complex and unique topology that cannot be described in layers

a+b duplicates or obligate multimersalpha and beta duplicates or monomers associated together to form a compact domain

a/b barrelsrepeating beta-alpha units form a barrel

a/b three-layered sandwichesrepeating beta-alpha units form a sandwich with a mainly parallel beta-sheet layer stacked between two alpha-helix layers

mixed a+b and a/balpha and beta domain consists of both a+b and a/b regions

few secondary structure elementsstabilized by cofactors or disulfides

extended segmentsextended, non-globular segments, frequently bind to other proteins to form complexes