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1XD9

Crystal Structure of the Nitrogenase Fe protein Asp39Asn with MgADP bound

Functional Information from GO Data
ChainGOidnamespacecontents
A0000166molecular_functionnucleotide binding
A0005524molecular_functionATP binding
A0009399biological_processnitrogen fixation
A0016163molecular_functionnitrogenase activity
A0016491molecular_functionoxidoreductase activity
A0046872molecular_functionmetal ion binding
A0051536molecular_functioniron-sulfur cluster binding
A0051539molecular_function4 iron, 4 sulfur cluster binding
B0000166molecular_functionnucleotide binding
B0005524molecular_functionATP binding
B0009399biological_processnitrogen fixation
B0016163molecular_functionnitrogenase activity
B0016491molecular_functionoxidoreductase activity
B0046872molecular_functionmetal ion binding
B0051536molecular_functioniron-sulfur cluster binding
B0051539molecular_function4 iron, 4 sulfur cluster binding
Functional Information from PDB Data
site_idAC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE MG A 293
ChainResidue
ALYS15
ASER16
AASP43
ASER44
AADP291

site_idAC2
Number of Residues3
DetailsBINDING SITE FOR RESIDUE MG B 294
ChainResidue
BSER16
BASP43
BADP292

site_idAC3
Number of Residues9
DetailsBINDING SITE FOR RESIDUE SF4 A 290
ChainResidue
AALA98
ACYS132
AGLY134
BCYS97
BALA98
BCYS132
BGLY134
BPHE135
ACYS97

site_idAC4
Number of Residues16
DetailsBINDING SITE FOR RESIDUE ADP A 291
ChainResidue
ALYS10
AGLY11
AGLY12
AILE13
AGLY14
ALYS15
ASER16
ATHR17
AASN185
APRO212
AARG213
AASP214
AVAL217
AGLN218
AGLU221
AMG293

site_idAC5
Number of Residues16
DetailsBINDING SITE FOR RESIDUE ADP B 292
ChainResidue
BLYS10
BGLY12
BILE13
BGLY14
BLYS15
BSER16
BTHR17
BASN185
BVAL211
BPRO212
BARG213
BASP214
BVAL217
BGLU221
BTYR240
BMG294

Functional Information from PROSITE/UniProt
site_idPS00692
Number of Residues14
DetailsNIFH_FRXC_2 NifH/frxC family signature 2. DvLGDVVCGGFAmP
ChainResidueDetails
AASP125-PRO138

site_idPS00746
Number of Residues13
DetailsNIFH_FRXC_1 NifH/frxC family signature 1. EsGGPepGvGCAG
ChainResidueDetails
AGLU87-GLY99

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues18
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues2
DetailsModified residue: {"description":"ADP-ribosylarginine; by dinitrogenase reductase ADP-ribosyltransferase","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idMCSA1
Number of Residues4
DetailsM-CSA 212
ChainResidueDetails
ALYS10electrostatic stabiliser, hydrogen bond donor
ALYS15electrostatic stabiliser, hydrogen bond donor
ALYS41electrostatic stabiliser, hydrogen bond donor
AASP129hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor

site_idMCSA2
Number of Residues4
DetailsM-CSA 212
ChainResidueDetails
BLYS10electrostatic stabiliser, hydrogen bond donor
BLYS15electrostatic stabiliser, hydrogen bond donor
BLYS41electrostatic stabiliser, hydrogen bond donor
BASP129hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor

246031

PDB entries from 2025-12-10

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