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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

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

X: Flavodoxin-like
H: Class I glutamine amidotransferase-like
T: Chelatase-like
F: Oxidored_nitro,DUF3364

PF00148 PF11844

Representatives:

e1m1nB1[B:2-213] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 1.16Å

e8btsD3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: 1CL,FE,GOL ; X-RAY DIFFRACTION 3.029Å

e8btsI1[I:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: 1CL,FE,HCA ; X-RAY DIFFRACTION 3.029Å

e8btsL2[L:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: 1CL,FE,GOL,SO4 ; X-RAY DIFFRACTION 3.029Å

e8dbyD3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; ELECTRON MICROSCOPY

e8dfcD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,SF4 ; ELECTRON MICROSCOPY

e8dfdB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,SF4 ; ELECTRON MICROSCOPY

e8dfdD2[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,SF4 ; ELECTRON MICROSCOPY

e2afhB1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein ; ligands: 1PE,CA,CLF,PEG,TRS ; X-RAY DIFFRACTION 2.1Å

e2afhD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein ; ligands: CA,CLF,P6G,PEG,PGE ; X-RAY DIFFRACTION 2.1Å

e2afiB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein ; ligands: CA,CLF ; X-RAY DIFFRACTION 3.1Å

e2afiD3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein ; ligands: CA,CLF ; X-RAY DIFFRACTION 3.1Å

e2afiJ1[J:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein ; ligands: CA,CLF ; X-RAY DIFFRACTION 3.1Å

e2afiL2[L:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein ; ligands: CA,CLF ; X-RAY DIFFRACTION 3.1Å

e1fp4B2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITROGENASE MOLYBDENUM-IRON PROTEIN BETA CHAIN ; ligands: CA,CLP ; X-RAY DIFFRACTION 2.5Å

e1fp4D2[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITROGENASE MOLYBDENUM-IRON PROTEIN BETA CHAIN ; ligands: CA,CLP ; X-RAY DIFFRACTION 2.5Å

e1g20B1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITROGENASE MOLYBDENUM-IRON PROTEIN BETA CHAIN ; ligands: CA,CLF,SF4 ; X-RAY DIFFRACTION 2.2Å

e1g20D3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITROGENASE MOLYBDENUM-IRON PROTEIN BETA CHAIN ; ligands: CA,CLF,SF4 ; X-RAY DIFFRACTION 2.2Å

e1g21B3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITROGENASE MOLYBDENUM-IRON PROTEIN BETA CHAIN ; ligands: CA,CLF,SF4 ; X-RAY DIFFRACTION 3.0Å

e1g21D2[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITROGENASE MOLYBDENUM-IRON PROTEIN BETA CHAIN ; ligands: CA,CLF,SF4 ; X-RAY DIFFRACTION 3.0Å

e1h1lB3[B:1-211] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITROGENASE MOLYBDENUM IRON PROTEIN BETA CHAIN ; ligands: CLF,MG ; X-RAY DIFFRACTION 1.900Å

e1h1lD3[D:1-211] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITROGENASE MOLYBDENUM IRON PROTEIN BETA CHAIN ; ligands: CLF,MG ; X-RAY DIFFRACTION 1.900Å

e3k1aB2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 2.23Å

e3k1aD2[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 2.23Å

e1l5hB1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITROGENASE MOLYBDENUM-IRON PROTEIN BETA CHAIN ; ligands: CA,CLF ; X-RAY DIFFRACTION 2.3Å

e1m1nD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 1.16Å

e1m1nF2[F:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 1.16Å

e1m1nH1[H:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 1.16Å

e1m1yB2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 3.2Å

e1m1yD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 3.2Å

e1m1yJ2[J:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 3.2Å

e1m1yL2[L:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 3.2Å

e1m34B1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase Molybdenum-Iron Protein beta chain ; ligands: CA,CLF,SF4 ; X-RAY DIFFRACTION 2.3Å

e1m34D3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase Molybdenum-Iron Protein beta chain ; ligands: CA,CLF,SF4 ; X-RAY DIFFRACTION 2.3Å

e1m34J3[J:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase Molybdenum-Iron Protein beta chain ; ligands: CA,CLF,SF4 ; X-RAY DIFFRACTION 2.3Å

e1m34L1[L:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase Molybdenum-Iron Protein beta chain ; ligands: CA,CLF,SF4 ; X-RAY DIFFRACTION 2.3Å

e2minB1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITROGENASE MOLYBDENUM IRON PROTEIN ; ligands: CA,CLF ; X-RAY DIFFRACTION 2.03Å

e2minD2[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITROGENASE MOLYBDENUM IRON PROTEIN ; ligands: CA,CLF ; X-RAY DIFFRACTION 2.03Å

e3minB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITROGENASE MOLYBDENUM IRON PROTEIN ; ligands: CA,CLF ; X-RAY DIFFRACTION 2.03Å

e3minD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITROGENASE MOLYBDENUM IRON PROTEIN ; ligands: CA,CLF ; X-RAY DIFFRACTION 2.03Å

e1n2cB2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITROGENASE MOLYBDENUM-IRON PROTEIN ; ligands: CA,CLF,SF4 ; X-RAY DIFFRACTION 3.0Å

e1n2cD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITROGENASE MOLYBDENUM-IRON PROTEIN ; ligands: CA,CLF,SF4 ; X-RAY DIFFRACTION 3.0Å

e4nd8B1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITROGENASE MOLYBDENUM-IRON PROTEIN BETA CHAIN ; ligands: 1CL,FE,HCA ; X-RAY DIFFRACTION 2.0Å

e4nd8D3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NITROGENASE MOLYBDENUM-IRON PROTEIN BETA CHAIN ; ligands: 1CL,FE,HCA ; X-RAY DIFFRACTION 2.0Å

e1qguB2[B:1-211] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (NITROGENASE MOLYBDENUM IRON PROTEIN) ; ligands: CLF,EDO,MG ; X-RAY DIFFRACTION 1.6Å

e1qguD3[D:1-211] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (NITROGENASE MOLYBDENUM IRON PROTEIN) ; ligands: CLF,EDO,MG ; X-RAY DIFFRACTION 1.6Å

e1qh1B1[B:1-211] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (NITROGENASE MOLYBDENUM IRON PROTEIN) ; ligands: CLF,EDO,MG ; X-RAY DIFFRACTION 1.60Å

e1qh1D3[D:1-211] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (NITROGENASE MOLYBDENUM IRON PROTEIN) ; ligands: CLF,EDO,MG ; X-RAY DIFFRACTION 1.60Å

e1qh8B2[B:1-211] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (NITROGENASE MOLYBDENUM IRON PROTEIN) ; ligands: CLF,EDO,MG ; X-RAY DIFFRACTION 1.60Å

e1qh8D1[D:1-211] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (NITROGENASE MOLYBDENUM IRON PROTEIN) ; ligands: CLF,EDO,MG ; X-RAY DIFFRACTION 1.60Å

e4tkuB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE2,IMD ; X-RAY DIFFRACTION 1.43Å

e4tkuD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE2,IMD ; X-RAY DIFFRACTION 1.43Å

e4tkvB1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE2,IMD ; X-RAY DIFFRACTION 1.50Å

e4tkvD3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE2,IMD ; X-RAY DIFFRACTION 1.50Å

e3u7qB2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1CL,CA,CLF,IMD ; X-RAY DIFFRACTION 1.00Å

e3u7qD2[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1CL,CA,CLF,IMD,MG ; X-RAY DIFFRACTION 1.00Å

e4wnaB1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; X-RAY DIFFRACTION 2.000Å

e4wnaD2[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; X-RAY DIFFRACTION 2.000Å

e4wzaB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,SF4 ; X-RAY DIFFRACTION 1.8995Å

e4wzaD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,SF4 ; X-RAY DIFFRACTION 1.8995Å

e4wzbB1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: CLF,FE2,SF4 ; X-RAY DIFFRACTION 2.300Å

e4wzbD2[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: CLF,FE2,SF4 ; X-RAY DIFFRACTION 2.300Å

e5cx1B2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 1.7476Å

e5cx1D1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 1.7476Å

e5cx1F2[F:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 1.7476Å

e5cx1H2[H:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 1.7476Å

e5cx1J2[J:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 1.7476Å

e5cx1L2[L:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 1.7476Å

e5cx1N2[N:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 1.7476Å

e5cx1P2[P:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF ; X-RAY DIFFRACTION 1.7476Å

e4xpiB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1CL,CA,GOL,TRS ; X-RAY DIFFRACTION 1.97Å

e4xpiD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1CL,CA,GOL,TRS ; X-RAY DIFFRACTION 1.97Å

e5bvgB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE2,IMD,SE ; X-RAY DIFFRACTION 1.60Å

e5bvgD3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE2,IMD,SE ; X-RAY DIFFRACTION 1.60Å

e5bvhB1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE2,IMD ; X-RAY DIFFRACTION 1.53Å

e5bvhD3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE2,IMD ; X-RAY DIFFRACTION 1.53Å

e5kojB1[B:2-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase FeMo beta subunit protein NifK ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 2.592Å

e5kojD3[D:2-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase FeMo beta subunit protein NifK ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 2.592Å

e5kohB1[B:2-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase FeMo beta subunit protein NifK ; ligands: CLF,FE,MRD ; X-RAY DIFFRACTION 1.83Å

e5kohD2[D:2-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase FeMo beta subunit protein NifK ; ligands: CLF,FE,MPD ; X-RAY DIFFRACTION 1.83Å

e5ijyB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH

e5ijyD2[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH

e5vq4B2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; X-RAY DIFFRACTION 2.30Å

e5vq4D1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; X-RAY DIFFRACTION 2.30Å

e6cdkB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; X-RAY DIFFRACTION 2.100Å

e6cdkD3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; X-RAY DIFFRACTION 2.100Å

e6bblB1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1CL,FE,HCA ; X-RAY DIFFRACTION 1.680Å

e6bblD3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1CL,C2H,FE,HCA,IMD ; X-RAY DIFFRACTION 1.680Å

e6o7lB2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 2.26Å

e6o7lD3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 2.26Å

e6o7mB2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 1.40Å

e6o7mD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 1.40Å

e6o7nB2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 1.75Å

e6o7nD3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 1.75Å

e6o7oB2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 1.89Å

e6o7oD3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 1.89Å

e6o7pB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 1.70Å

e6o7pD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 1.70Å

e6o7qB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 2.00Å

e6o7qD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 2.00Å

e6o7rB1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 2.27Å

e6o7rD3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 2.27Å

e6o7sB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: FE,HCA,LPJ ; X-RAY DIFFRACTION 2.27Å

e6o7sD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: FE,HCA,LPJ ; X-RAY DIFFRACTION 2.27Å

e6op1B3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF,IMD ; X-RAY DIFFRACTION 1.700Å

e6op1D2[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF,IMD,MG ; X-RAY DIFFRACTION 1.700Å

e6op2B2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF,IMD ; X-RAY DIFFRACTION 1.900Å

e6op2D2[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF,IMD,MG ; X-RAY DIFFRACTION 1.900Å

e6op3B2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF,IMD ; X-RAY DIFFRACTION 1.600Å

e6op3D3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF,IMD,MG ; X-RAY DIFFRACTION 1.600Å

e6op4B3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF,IMD ; X-RAY DIFFRACTION 2.300Å

e6op4D3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF,IMD,MG ; X-RAY DIFFRACTION 2.300Å

e6ug0B1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1CL,FE,GOL ; X-RAY DIFFRACTION 1.83Å

e6ug0D2[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1CL,FE,GOL ; X-RAY DIFFRACTION 1.83Å

e6vxtB1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,GOL ; X-RAY DIFFRACTION 1.73Å

e6vxtD2[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,GOL ; X-RAY DIFFRACTION 1.73Å

e7jrfB2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF,IMD ; X-RAY DIFFRACTION 1.33Å

e7jrfD3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF,IMD,MG ; X-RAY DIFFRACTION 1.33Å

e7mciB1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF,GOL ; X-RAY DIFFRACTION 1.65Å

e7mciD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CA,CLF,GOL ; X-RAY DIFFRACTION 1.65Å

e8dpnB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; ELECTRON MICROSCOPY

e8dpnD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; ELECTRON MICROSCOPY

e7ut6B2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; ELECTRON MICROSCOPY

e7ut6D3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; ELECTRON MICROSCOPY

e7ut7B3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; ELECTRON MICROSCOPY

e7ut7D3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; ELECTRON MICROSCOPY

e7ut8B3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,SF4 ; ELECTRON MICROSCOPY

e7ut8D1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; ELECTRON MICROSCOPY

e7ut9B3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,SF4 ; ELECTRON MICROSCOPY

e7ut9D2[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,HCA ; ELECTRON MICROSCOPY

e7utaB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,SF4 ; ELECTRON MICROSCOPY

e7utaD3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,SF4 ; ELECTRON MICROSCOPY

e8crsB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1N7,CLF,FE ; ELECTRON MICROSCOPY

e8crsD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1N7,CLF,FE ; ELECTRON MICROSCOPY

e8dbxB2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1CL,CLF,FE ; ELECTRON MICROSCOPY

e8dbxD3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1CL,CLF,FE ; ELECTRON MICROSCOPY

e8enlB2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1N7,CLF,FE ; ELECTRON MICROSCOPY

e8enlD2[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1N7,CLF,FE ; ELECTRON MICROSCOPY

e8enmB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; ELECTRON MICROSCOPY

e8enmD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; ELECTRON MICROSCOPY

e8ennB1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1N7,CLF,FE ; ELECTRON MICROSCOPY

e8ennD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1N7,CIT,CLF,FE ; ELECTRON MICROSCOPY

e8enoB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1N7,CLF,FE ; ELECTRON MICROSCOPY

e8enoD3[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: 1N7,CLF,FE ; ELECTRON MICROSCOPY

e8e3tB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: FE,HCA,NA,UFF ; X-RAY DIFFRACTION 2.2Å

e8e3tD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: FE,HCA,NA,UFF ; X-RAY DIFFRACTION 2.2Å

e8e3uB1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: FE,HCA,NA,UFF ; X-RAY DIFFRACTION 1.99Å

e8e3uD2[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: FE,HCA,NA,UFF ; X-RAY DIFFRACTION 1.99Å

e8e3vB2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 2.00Å

e8e3vD1[D:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE,HCA ; X-RAY DIFFRACTION 2.00Å

e8btsB3[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: 1CL,FE,GOL ; X-RAY DIFFRACTION 3.029Å

e8dbyB1[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; ELECTRON MICROSCOPY

e8dfcB2[B:2-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nitrogenase molybdenum-iron protein beta chain ; ligands: CLF,FE ; ELECTRON MICROSCOPY

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.

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