1XCP - JenaLib

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Asymmetric Unit (Jmol Viewer)

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Biol. Unit 1 - sites (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF THE NITROGENASE FE PROTEIN PHE135TRP WITH MGADP BOUND

Authors :   M. S. Jeong, S. B. Jang

Date :   02 Sep 04 (Deposition) - 15 Mar 05 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   3.20

Chains :   Asym. Unit : A,B,C,D
Biol. Unit 1: A,B  (1x)
Biol. Unit 2: C,D  (1x)

Keywords :   Fe Protein, F135W, Mgadp, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   M. S. Jeong, S. B. Jang
Structural Basis For The Changes In Redox Potential In The Nitrogenase Phe135Trp Fe Protein With Mgadp Bound
Mol. Cell V. 18 374 2004
PubMed-ID: 15650336
(for further references see the PDB file header)

Molecule 1 - NITROGENASE IRON PROTEIN 1
	Chains	:	A, B, C, D
	EC Number	:	1.18.6.1
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PLCS586, PTZ19U
	Expression System Strain	:	CJ236
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Mutation	:	YES
	Organism Scientific	:	AZOTOBACTER VINELANDII
	Organism Taxid	:	354
	Synonym	:	NITROGENASE COMPONENT II, NITROGENASE FE PROTEIN 1, NITROGENASE REDUCTASE

		1	2	3	4
Asymmetric Unit	:	A	B	C	D
Biological Unit 1 (1x)	:	A	B
Biological Unit 2 (1x)	:			C	D

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (3, 10)

No.	Name	Count	Type	Full Name
1	ADP	4	Ligand/Ion	ADENOSINE-5'-DIPHOSPHATE
2	MG	4	Ligand/Ion	MAGNESIUM ION
3	SF4	2	Ligand/Ion	IRON/SULFUR CLUSTER

Biological Unit 1 (2, 3)

No.	Name	Count	Type	Full Name
1	ADP	2	Ligand/Ion	ADENOSINE-5'-DIPHOSPHATE
2	MG	-1	Ligand/Ion	MAGNESIUM ION
3	SF4	1	Ligand/Ion	IRON/SULFUR CLUSTER

Biological Unit 2 (2, 3)

No.	Name	Count	Type	Full Name
1	ADP	2	Ligand/Ion	ADENOSINE-5'-DIPHOSPHATE
2	MG	-1	Ligand/Ion	MAGNESIUM ION
3	SF4	1	Ligand/Ion	IRON/SULFUR CLUSTER

Asymmetric Unit (10, 10)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	LYS A:15 , SER A:16 , ASP A:39 , ASP A:43 , ADP A:1291	BINDING SITE FOR RESIDUE MG A 1293
02	AC2	SOFTWARE	LYS B:15 , SER B:16 , ASP B:39 , ASP B:43 , ADP B:1292	BINDING SITE FOR RESIDUE MG B 1294
03	AC3	SOFTWARE	SER C:16 , ASP C:39 , ASP C:43 , ASP C:125 , ADP C:2291	BINDING SITE FOR RESIDUE MG C 2293
04	AC4	SOFTWARE	SER D:16 , ASP D:39 , ASP D:43 , ASP D:125 , ADP D:2292	BINDING SITE FOR RESIDUE MG D 2294
05	AC5	SOFTWARE	CYS A:97 , ALA A:98 , CYS A:132 , GLY A:134 , CYS B:97 , ALA B:98 , CYS B:132 , GLY B:134	BINDING SITE FOR RESIDUE SF4 B 1290
06	AC6	SOFTWARE	CYS C:97 , ALA C:98 , CYS C:132 , GLY C:134 , CYS D:97 , ALA D:98 , CYS D:132 , GLY D:134	BINDING SITE FOR RESIDUE SF4 C 2290
07	AC7	SOFTWARE	LYS A:10 , GLY A:12 , ILE A:13 , GLY A:14 , LYS A:15 , SER A:16 , THR A:17 , ASN A:185 , VAL A:211 , PRO A:212 , ARG A:213 , ASP A:214 , VAL A:217 , GLN A:218 , GLU A:221 , GLN A:236 , TYR A:240 , MG A:1293	BINDING SITE FOR RESIDUE ADP A 1291
08	AC8	SOFTWARE	LYS B:10 , GLY B:12 , ILE B:13 , GLY B:14 , LYS B:15 , SER B:16 , THR B:17 , ASN B:185 , VAL B:211 , PRO B:212 , ARG B:213 , ASP B:214 , VAL B:217 , GLN B:218 , GLU B:221 , GLN B:236 , TYR B:240 , MG B:1294	BINDING SITE FOR RESIDUE ADP B 1292
09	AC9	SOFTWARE	LYS C:10 , GLY C:12 , ILE C:13 , GLY C:14 , LYS C:15 , SER C:16 , THR C:17 , ASN C:185 , PRO C:212 , ARG C:213 , ASP C:214 , GLN C:218 , GLU C:221 , GLN C:236 , TYR C:240 , MG C:2293	BINDING SITE FOR RESIDUE ADP C 2291
10	BC1	SOFTWARE	LYS D:10 , GLY D:12 , ILE D:13 , GLY D:14 , LYS D:15 , SER D:16 , THR D:17 , ASN D:185 , PRO D:212 , ARG D:213 , ASP D:214 , GLN D:218 , GLU D:221 , GLN D:236 , TYR D:240 , MG D:2294	BINDING SITE FOR RESIDUE ADP D 2292

(no "SS Bond" information available for 1XCP)

Asymmetric Unit

No.	Residues
1	Gly A:90	-	Pro A:91
2	Gly B:90	-	Pro B:91

(no "SAP(SNP)/Variant" information available for 1XCP)

Asymmetric Unit (3, 12)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	NIFH_FRXC_3	PS51026	NIFH_FRXC family profile.	NIFH1_AZOVI	3-275	4	A:2-274 B:2-274 C:2-274 D:2-274
2	NIFH_FRXC_1	PS00746	NifH/frxC family signature 1.	NIFH1_AZOVI	88-100	4	A:87-99 B:87-99 C:87-99 D:87-99
3	NIFH_FRXC_2	PS00692	NifH/frxC family signature 2.	NIFH1_AZOVI	126-139	4	A:125-138 B:125-138 C:125-138 D:125-138

Biological Unit 1 (3, 6)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	NIFH_FRXC_3	PS51026	NIFH_FRXC family profile.	NIFH1_AZOVI	3-275	2	A:2-274 B:2-274 - -
2	NIFH_FRXC_1	PS00746	NifH/frxC family signature 1.	NIFH1_AZOVI	88-100	2	A:87-99 B:87-99 - -
3	NIFH_FRXC_2	PS00692	NifH/frxC family signature 2.	NIFH1_AZOVI	126-139	2	A:125-138 B:125-138 - -

Biological Unit 2 (3, 6)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	NIFH_FRXC_3	PS51026	NIFH_FRXC family profile.	NIFH1_AZOVI	3-275	2	- - C:2-274 D:2-274
2	NIFH_FRXC_1	PS00746	NifH/frxC family signature 1.	NIFH1_AZOVI	88-100	2	- - C:87-99 D:87-99
3	NIFH_FRXC_2	PS00692	NifH/frxC family signature 2.	NIFH1_AZOVI	126-139	2	- - C:125-138 D:125-138

(no "Exon" information available for 1XCP)

Asymmetric Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:289
 aligned with NIFH1_AZOVI | P00459 from UniProtKB/Swiss-Prot  Length:290

    Alignment length:289
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281         
          NIFH1_AZOVI     2 AMRQCAIYGKGGIGKSTTTQNLVAALAEMGKKVMIVGCDPKADSTRLILHSKAQNTIMEMAAEAGTVEDLELEDVLKAGYGGVKCVESGGPEPGVGCAGRGVITAINFLEEEGAYEDDLDFVFYDVLGDVVCGGFAMPIRENKAQEIYIVCSGEMMAMYAANNISKGIVKYANSGSVRLGGLICNSRNTDREDELIIALANKLGTQMIHFVPRDNVVQRAEIRRMTVIEYDPKAKQADEYRALARKVVDNKLLVIPNPITMDELEELLMEFGIMEVEDESIVGKTAEEV 290
               SCOP domains d1xcpa1 A:1-289 Nitrogenase iron protein                                                                                                                                                                                                                                                          SCOP domains
               CATH domains 1xcpA00 A:1-289 P-loop containing nucleotide triphosphate hydrolases                                                                                                                                                                                                                              CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeee.....hhhhhhhhhhhhhhhh...eeeee.......hhhhhh.......hhhhhh..hhhhh.....eee.hhh.eeee.........hhhhhhhhhhhhhh..........eeeee....................eeeeee..hhhhhhhhhhhhhhhhhhh.....eeeeeeee.....hhhhhhhhhhhhh.....eee...hhhhhhhh...hhhhhh..hhhhhhhhhhhhhhhh..........hhhhhhhhhhhh.................. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) -NIFH_FRXC_3  PDB: A:2-274 UniProt: 3-275                                                                                                                                                                                                                                         --------------- PROSITE (1)
                PROSITE (2) --------------------------------------------------------------------------------------NIFH_FRXC_1  -------------------------NIFH_FRXC_2   ------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1xcp A   1 AMRQCAIYGKGGIGKSTTTQNLVAALAEMGKKVMIVGCDPKADSTRLILHSKAQNTIMEMAAEAGTVEDLELEDVLKAGYGGVKCVESGGPEPGVGCAGRGVITAINFLEEEGAYEDDLDFVFYDVLGDVVCGGWAMPIRENKAQEIYIVCSGEMMAMYAANNISKGIVKYANSGSVRLGGLICNSRNTDREDELIIALANKLGTQMIHFVPRDNVVQRAEIRRMTVIEYDPKAKQADEYRALARKVVDNKLLVIPNPITMDELEELLMEFGIMEVEDESIVGKTAEEV 289
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280

Chain B from PDB  Type:PROTEIN  Length:289
 aligned with NIFH1_AZOVI | P00459 from UniProtKB/Swiss-Prot  Length:290

    Alignment length:289
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281         
          NIFH1_AZOVI     2 AMRQCAIYGKGGIGKSTTTQNLVAALAEMGKKVMIVGCDPKADSTRLILHSKAQNTIMEMAAEAGTVEDLELEDVLKAGYGGVKCVESGGPEPGVGCAGRGVITAINFLEEEGAYEDDLDFVFYDVLGDVVCGGFAMPIRENKAQEIYIVCSGEMMAMYAANNISKGIVKYANSGSVRLGGLICNSRNTDREDELIIALANKLGTQMIHFVPRDNVVQRAEIRRMTVIEYDPKAKQADEYRALARKVVDNKLLVIPNPITMDELEELLMEFGIMEVEDESIVGKTAEEV 290
               SCOP domains d1xcpb1 B:1-289 Nitrogenase iron protein                                                                                                                                                                                                                                                          SCOP domains
               CATH domains 1xcpB00 B:1-289 P-loop containing nucleotide triphosphate hydrolases                                                                                                                                                                                                                              CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeee.....hhhhhhhhhhhhhhhh...eeeee.......hhhhhh.......hhhhhh..hhhhh.....eee.hhh.eeee.........hhhhhhhhhhhhhh..........eeeee....................eeeeee..hhhhhhhhhhhhhhhhhhh.....eeeeeeee.....hhhhhhhhhhhhh.....eee...hhhhhhhh...hhhhhh..hhhhhhhhhhhhhhhh..........hhhhhhhhhhhh.................. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) -NIFH_FRXC_3  PDB: B:2-274 UniProt: 3-275                                                                                                                                                                                                                                         --------------- PROSITE (1)
                PROSITE (2) --------------------------------------------------------------------------------------NIFH_FRXC_1  -------------------------NIFH_FRXC_2   ------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1xcp B   1 AMRQCAIYGKGGIGKSTTTQNLVAALAEMGKKVMIVGCDPKADSTRLILHSKAQNTIMEMAAEAGTVEDLELEDVLKAGYGGVKCVESGGPEPGVGCAGRGVITAINFLEEEGAYEDDLDFVFYDVLGDVVCGGWAMPIRENKAQEIYIVCSGEMMAMYAANNISKGIVKYANSGSVRLGGLICNSRNTDREDELIIALANKLGTQMIHFVPRDNVVQRAEIRRMTVIEYDPKAKQADEYRALARKVVDNKLLVIPNPITMDELEELLMEFGIMEVEDESIVGKTAEEV 289
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280

Chain C from PDB  Type:PROTEIN  Length:289
 aligned with NIFH1_AZOVI | P00459 from UniProtKB/Swiss-Prot  Length:290

    Alignment length:289
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281         
          NIFH1_AZOVI     2 AMRQCAIYGKGGIGKSTTTQNLVAALAEMGKKVMIVGCDPKADSTRLILHSKAQNTIMEMAAEAGTVEDLELEDVLKAGYGGVKCVESGGPEPGVGCAGRGVITAINFLEEEGAYEDDLDFVFYDVLGDVVCGGFAMPIRENKAQEIYIVCSGEMMAMYAANNISKGIVKYANSGSVRLGGLICNSRNTDREDELIIALANKLGTQMIHFVPRDNVVQRAEIRRMTVIEYDPKAKQADEYRALARKVVDNKLLVIPNPITMDELEELLMEFGIMEVEDESIVGKTAEEV 290
               SCOP domains d1xcpc1 C:1-289 Nitrogenase iron protein                                                                                                                                                                                                                                                          SCOP domains
               CATH domains 1xcpC00 C:1-289 P-loop containing nucleotide triphosphate hydrolases                                                                                                                                                                                                                              CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeee....hhhhhhhhhhhhhhhhh..eeeee.......hhhhhh......hhhhhh........hhhhh.ee.hhh.eeee.........hhhhhhhhhhhhhhhh........eeeeeee..................eeeeee..hhhhhhhhhhhhhhhhhh......eeeeeeee.....hhhhhhhhhhhhh.....eee...hhhhhhhhh..hhhhhh..hhhhhhhhhhhhhhhh..........hhhhhhhhhhhh.............hhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) -NIFH_FRXC_3  PDB: C:2-274 UniProt: 3-275                                                                                                                                                                                                                                         --------------- PROSITE (1)
                PROSITE (2) --------------------------------------------------------------------------------------NIFH_FRXC_1  -------------------------NIFH_FRXC_2   ------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1xcp C   1 AMRQCAIYGKGGIGKSTTTQNLVAALAEMGKKVMIVGCDPKADSTRLILHSKAQNTIMEMAAEAGTVEDLELEDVLKAGYGGVKCVESGGPEPGVGCAGRGVITAINFLEEEGAYEDDLDFVFYDVLGDVVCGGWAMPIRENKAQEIYIVCSGEMMAMYAANNISKGIVKYANSGSVRLGGLICNSRNTDREDELIIALANKLGTQMIHFVPRDNVVQRAEIRRMTVIEYDPKAKQADEYRALARKVVDNKLLVIPNPITMDELEELLMEFGIMEVEDESIVGKTAEEV 289
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280

Chain D from PDB  Type:PROTEIN  Length:289
 aligned with NIFH1_AZOVI | P00459 from UniProtKB/Swiss-Prot  Length:290

    Alignment length:289
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281         
          NIFH1_AZOVI     2 AMRQCAIYGKGGIGKSTTTQNLVAALAEMGKKVMIVGCDPKADSTRLILHSKAQNTIMEMAAEAGTVEDLELEDVLKAGYGGVKCVESGGPEPGVGCAGRGVITAINFLEEEGAYEDDLDFVFYDVLGDVVCGGFAMPIRENKAQEIYIVCSGEMMAMYAANNISKGIVKYANSGSVRLGGLICNSRNTDREDELIIALANKLGTQMIHFVPRDNVVQRAEIRRMTVIEYDPKAKQADEYRALARKVVDNKLLVIPNPITMDELEELLMEFGIMEVEDESIVGKTAEEV 290
               SCOP domains d1xcpd1 D:1-289 Nitrogenase iron protein                                                                                                                                                                                                                                                          SCOP domains
               CATH domains 1xcpD00 D:1-289 P-loop containing nucleotide triphosphate hydrolases                                                                                                                                                                                                                              CATH domains
           Pfam domains (1) --Fer4_NifH-1xcpD01 D:3-275                                                                                                                                                                                                                                                        -------------- Pfam domains (1)
           Pfam domains (2) --Fer4_NifH-1xcpD02 D:3-275                                                                                                                                                                                                                                                        -------------- Pfam domains (2)
           Pfam domains (3) --Fer4_NifH-1xcpD03 D:3-275                                                                                                                                                                                                                                                        -------------- Pfam domains (3)
           Pfam domains (4) --Fer4_NifH-1xcpD04 D:3-275                                                                                                                                                                                                                                                        -------------- Pfam domains (4)
         Sec.struct. author ..eeeeeee....hhhhhhhhhhhhhhhhh..eeeee.......hhhhhh......hhhhhh........hhhhh.ee.hhh.eeee.........hhhhhhhhhhhhhhhh........eeeeeee..................eeeeee..hhhhhhhhhhhhhhhhhh......eeeeeeee.....hhhhhhhhhhhhh...eeeee...hhhhhhhhh..hhhhhh..hhhhhhhhhhhhhhhh..........hhhhhhhhhhhh.............hhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) -NIFH_FRXC_3  PDB: D:2-274 UniProt: 3-275                                                                                                                                                                                                                                         --------------- PROSITE (1)
                PROSITE (2) --------------------------------------------------------------------------------------NIFH_FRXC_1  -------------------------NIFH_FRXC_2   ------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1xcp D   1 AMRQCAIYGKGGIGKSTTTQNLVAALAEMGKKVMIVGCDPKADSTRLILHSKAQNTIMEMAAEAGTVEDLELEDVLKAGYGGVKCVESGGPEPGVGCAGRGVITAINFLEEEGAYEDDLDFVFYDVLGDVVCGGWAMPIRENKAQEIYIVCSGEMMAMYAANNISKGIVKYANSGSVRLGGLICNSRNTDREDELIIALANKLGTQMIHFVPRDNVVQRAEIRRMTVIEYDPKAKQADEYRALARKVVDNKLLVIPNPITMDELEELLMEFGIMEVEDESIVGKTAEEV 289
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
		→ Modified Residue	(blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
	x	→ Chemical Group	(purple background, 'x', labelled with number + name, e.g. ACE or NH2)
	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

Asymmetric Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: Alpha and beta proteins (a/b) (23833)

Fold: P-loop containing nucleoside triphosphate hydrolases (2083)

Superfamily: P-loop containing nucleoside triphosphate hydrolases (2083)

Family: Nitrogenase iron protein-like (152)

Protein domain: Nitrogenase iron protein (21)

Azotobacter vinelandii [TaxId: 354] (20)

1a	d1xcpa1	A:1-289
1b	d1xcpb1	B:1-289
1c	d1xcpc1	C:1-289
1d	d1xcpd1	D:1-289

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 3-Layer(aba) Sandwich (12045)

Topology: Rossmann fold (7312)

Homologous Superfamily: P-loop containing nucleotide triphosphate hydrolases (1378)

Azotobacter vinelandii. Organism_taxid: 354. (5)

1a	1xcpA00	A:1-289
1b	1xcpB00	B:1-289
1c	1xcpC00	C:1-289
1d	1xcpD00	D:1-289

Asymmetric Unit

Clans(

)

Families(

)

Organisms( (-)

)

Clan: P-loop_NTPase (1112)

Family: Fer4_NifH (10)

Azotobacter vinelandii (10)

1a	Fer4_NifH-1xcpD01	D:3-275
1b	Fer4_NifH-1xcpD02	D:3-275
1c	Fer4_NifH-1xcpD03	D:3-275
1d	Fer4_NifH-1xcpD04	D:3-275

Asymmetric Unit(hide GO term definitions)

Chain A,B,C,D (NIFH1_AZOVI | P00459)

molecular function
	GO:0051539	4 iron, 4 sulfur cluster binding	Interacting selectively and non-covalently with a 4 iron, 4 sulfur (4Fe-4S) cluster; this cluster consists of four iron atoms, with the inorganic sulfur atoms found between the irons and acting as bridging ligands.
	GO:0005524	ATP binding	Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
	GO:0018697	carbonyl sulfide nitrogenase activity	Catalysis of the reaction: carbonyl sulfide + 2 H+ + 2 e- = hydrogen sulfide + carbon monoxide.
	GO:0051536	iron-sulfur cluster binding	Interacting selectively and non-covalently with an iron-sulfur cluster, a combination of iron and sulfur atoms.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0016163	nitrogenase activity	Catalysis of the reaction: 8 reduced ferredoxin + 8 H+ + nitrogen + 16 ATP = 8 oxidized ferredoxin + 2 NH3 + 16 ADP + 16 phosphate.
	GO:0000166	nucleotide binding	Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
	GO:0016491	oxidoreductase activity	Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
biological process
	GO:0009399	nitrogen fixation	The process in which nitrogen is taken from its relatively inert molecular form (N2) in the atmosphere and converted into nitrogen compounds useful for other chemical processes, such as ammonia, nitrate and nitrogen dioxide.
	GO:0055114	oxidation-reduction process	A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
cellular component
	GO:0016612	molybdenum-iron nitrogenase complex	An enzyme complex containing a molybdenum-iron cluster found in many species. It is composed of two proteins, dinitrogenase and nitrogenase reductase; dinitrogenase, the molybdenum-iron protein, is tetrameric with an alpha2-beta2 structure, and nitrogenase reductase is a homodimer.

Asymmetric Unit
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	Cis Peptide Bonds
		Gly A:90 - Pro A:91	[ RasMol ]
		Gly B:90 - Pro B:91	[ RasMol ]

Biological Units
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Access by PDB/NDB ID
	1xcp
		Family and Domain Information	:	ProDom \| SYSTERS
		General Structural Information	:	GlycoscienceDB \| MMDB \| NDB \| OCA \| PDB \| PDBe \| PDBj \| PDBsum \| PDBWiki \| PQS \| PROTEOPEDIA
		Orientation in Membranes	:	OPM
		Protein Surface	:	SURFACE
		Secondary Structure	:	DSSP (structure derived) \| HSSP (homology derived)
		Structural Genomics	:	GeneCensus
		Structural Neighbours	:	CE \| VAST
		Structure Classification	:	CATH \| Dali \| SCOP
		Validation and Original Data	:	BMRB Data View \| BMRB Restraints Grid \| EDS \| PROCHECK \| RECOORD \| WHAT_CHECK

Access by UniProt ID/Accession number
	NIFH1_AZOVI \| P00459
		Comparative Protein Structure Models	:	ModBase
		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/SwissProt

Access by Enzyme Classificator (EC Number)
	1.18.6.1
		General Enzyme Information	:	BRENDA \| EC-PDB \| Enzyme \| IntEnz
		Pathway	:	KEGG \| MetaCyc

Access by Disease Identifier (MIM ID)
	(no 'MIM ID' available)
		Disease Information	:	OMIM

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	(no 'GenAge ID' available)
		Age Related Information	:	GenAge

Access by PDB/NDB ID
		Domain Information	:	XDom
		Interatomic Contacts of Structural Units	:	CSU
		Ligand-protein Contacts	:	LPC
		Protein Cavities	:	castP
		Sequence and Secondary Structure	:	PDBCartoon
		Structure Alignment	:	STRAP(Java WebStart application, automatic local installation, requires Java; full application with system access!)
		Structure and Sequence Browser	:	STING

Access by UniProt ID/Accession number
	NIFH1_AZOVI \| P00459
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

1de0	MODULATING THE MIDPOINT POTENTIAL OF THE [4FE-4S] CLUSTER OF THE NITROGENASE FE PROTEIN
1fp6	INSIGHTS INTO NUCLEOTIDE SIGNAL TRANSDUCTION IN NITROGENASE: STRUCTURE OF AN IRON PROTEIN WITH MGADP BOUND

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (3, 10)

Sites (10, 10)

SS Bonds (0, 0)

Cis Peptide Bonds (2, 2)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (3, 12)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (1, 4)

CATH Domains (1, 4)

Pfam Domains (1, 4)

Gene Ontology (11, 11)

Visualization

Interactive Views

Still Images

Databases and Analysis Tools

Databases

Analysis Tools

Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File