1O57 - 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 PURINE OPERON REPRESSOR OF BACILLUS SUBTILIS

Authors :   S. C. Sinha, J. Krahn, B. S. Shin, D. R. Tomchick, H. Zalkin, J. L. Smith

Date :   20 Apr 03 (Deposition) - 26 Aug 03 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.20

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

Keywords :   Purine Operon Repressor, Helix-Turn-Helix Domain, Phosphoribosyltranseferases, Domain Recombination, Dna Binding, Transcription Regulation, Dna Binding Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   S. C. Sinha, J. Krahn, B. S. Shin, D. R. Tomchick, H. Zalkin, J. L. Smith
The Purine Repressor Of Bacillus Subtilis: A Novel Combination Of Domains Adapted For Transcription Regulation
J. Bacteriol. V. 185 4087 2003
PubMed-ID: 12837783 | Reference-DOI: 10.1128/JB.185.14.4087-4098.2003
(for further references see the PDB file header)

Molecule 1 - PUR OPERON REPRESSOR
	Chains	:	A, B, C, D
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Strain	:	B834(DE3)
	Expression System Taxid	:	562
	Gene	:	PURR
	Organism Scientific	:	BACILLUS SUBTILIS
	Organism Taxid	:	1423

		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 (6, 16)

No.	Name	Count	Type	Full Name
1	1PE	2	Ligand/Ion	PENTAETHYLENE GLYCOL
2	2PE	1	Ligand/Ion	NONAETHYLENE GLYCOL
3	EPE	2	Ligand/Ion	4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
4	P6G	2	Ligand/Ion	HEXAETHYLENE GLYCOL
5	PG4	1	Ligand/Ion	TETRAETHYLENE GLYCOL
6	SO4	8	Ligand/Ion	SULFATE ION

Biological Unit 1 (5, 8)

No.	Name	Count	Type	Full Name
1	1PE	-1	Ligand/Ion	PENTAETHYLENE GLYCOL
2	2PE	1	Ligand/Ion	NONAETHYLENE GLYCOL
3	EPE	1	Ligand/Ion	4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
4	P6G	1	Ligand/Ion	HEXAETHYLENE GLYCOL
5	PG4	1	Ligand/Ion	TETRAETHYLENE GLYCOL
6	SO4	4	Ligand/Ion	SULFATE ION

Biological Unit 2 (4, 8)

No.	Name	Count	Type	Full Name
1	1PE	2	Ligand/Ion	PENTAETHYLENE GLYCOL
2	2PE	-1	Ligand/Ion	NONAETHYLENE GLYCOL
3	EPE	1	Ligand/Ion	4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
4	P6G	1	Ligand/Ion	HEXAETHYLENE GLYCOL
5	PG4	-1	Ligand/Ion	TETRAETHYLENE GLYCOL
6	SO4	4	Ligand/Ion	SULFATE ION

Asymmetric Unit (16, 16)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	GLY A:178 , MET A:206 , LYS A:207 , ALA A:208 , GLY A:209 , GLY A:210 , THR A:211 , EPE A:570	BINDING SITE FOR RESIDUE SO4 A 581
02	AC2	SOFTWARE	GLY B:178 , MET B:206 , LYS B:207 , ALA B:208 , GLY B:209 , GLY B:210 , THR B:211 , HOH B:598	BINDING SITE FOR RESIDUE SO4 B 582
03	AC3	SOFTWARE	SER C:177 , GLY C:178 , LYS C:207 , ALA C:208 , GLY C:209 , GLY C:210 , THR C:211 , HOH C:636	BINDING SITE FOR RESIDUE SO4 C 583
04	AC4	SOFTWARE	SER D:177 , GLY D:178 , LYS D:207 , ALA D:208 , GLY D:209 , GLY D:210 , THR D:211 , EPE D:571	BINDING SITE FOR RESIDUE SO4 D 584
05	AC5	SOFTWARE	ARG A:160 , THR B:139 , LYS B:140	BINDING SITE FOR RESIDUE SO4 B 586
06	AC6	SOFTWARE	THR C:139 , LYS C:140 , LYS C:161 , HOH C:732 , ARG D:160	BINDING SITE FOR RESIDUE SO4 C 587
07	AC7	SOFTWARE	LYS B:2 , ARG B:5 , ARG B:8 , HOH B:612	BINDING SITE FOR RESIDUE SO4 B 589
08	AC8	SOFTWARE	GLU A:245 , HOH A:694 , LYS C:2 , PHE C:3 , ARG C:4 , ARG C:8 , SER C:35 , SER C:39 , HOH C:603 , HOH C:679	BINDING SITE FOR RESIDUE SO4 C 590
09	AC9	SOFTWARE	THR A:139 , LYS A:140 , LYS A:161 , ASP A:203 , ASP A:204 , PHE A:205 , THR A:211 , SO4 A:581 , ARG B:160	BINDING SITE FOR RESIDUE EPE A 570
10	BC1	SOFTWARE	THR D:139 , LYS D:140 , LYS D:161 , ASP D:203 , ASP D:204 , PHE D:205 , THR D:211 , SO4 D:584 , HOH D:598 , HOH D:653	BINDING SITE FOR RESIDUE EPE D 571
11	BC2	SOFTWARE	HIS A:21 , LEU A:60 , LYS A:70 , ALA A:127 , HOH A:594 , HOH A:598 , HOH A:602	BINDING SITE FOR RESIDUE P6G A 572
12	BC3	SOFTWARE	HIS D:21 , LEU D:23 , LEU D:60 , LYS D:70 , ALA D:127 , GLU D:128 , ARG D:129 , GLU D:130 , HOH D:600 , HOH D:626	BINDING SITE FOR RESIDUE P6G D 573
13	BC4	SOFTWARE	LEU A:17 , PRO A:112 , LEU A:115 , SER A:116 , PRO A:143 , TYR A:146 , ALA A:147 , SER A:150 , TYR A:151 , HOH A:585 , PRO B:112 , LEU B:115 , SER B:116 , TYR B:146 , SER B:150 , PG4 B:575 , HOH B:659	BINDING SITE FOR RESIDUE 2PE A 574
14	BC5	SOFTWARE	LEU A:17 , THR A:18 , 2PE A:574 , LEU B:17 , THR B:18 , SER B:150 , TYR B:151 , HOH B:603 , HOH B:613 , HOH B:649 , HOH B:659	BINDING SITE FOR RESIDUE PG4 B 575
15	BC6	SOFTWARE	LEU C:17 , THR C:18 , PRO C:112 , LEU C:115 , SER C:116 , SER C:150 , TYR C:151 , HOH C:647 , HOH C:686 , TYR D:146 , 1PE D:577 , HOH D:608	BINDING SITE FOR RESIDUE 1PE C 576
16	BC7	SOFTWARE	THR C:18 , 1PE C:576 , HOH C:622 , HOH C:647 , LEU D:17 , THR D:18 , SER D:150 , TYR D:151 , HOH D:591 , HOH D:608	BINDING SITE FOR RESIDUE 1PE D 577

(no "SS Bond" information available for 1O57)

Asymmetric Unit

No.	Residues
1	Ala A:138	-	Thr A:139
2	Ala B:138	-	Thr B:139
3	Ala C:138	-	Thr C:139
4	Ala D:138	-	Thr D:139

(no "SAP(SNP)/Variant" information available for 1O57)

(no "PROSITE Motif" information available for 1O57)

(no "Exon" information available for 1O57)

Asymmetric Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
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	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:270
 aligned with PURR_BACSU | P37551 from UniProtKB/Swiss-Prot  Length:285

    Alignment length:275
                                    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     
           PURR_BACSU     2 KFRRSGRLVDLTNYLLTHPHELIPLTFFSERYESAKSSISEDLTIIKQTFEQQGIGTLLTVPGAAGGVKYIPKMKQAEAEEFVQTLGQSLANPERILPGGYVYLTDILGKPSVLSKVGKLFASVFAEREIDVVMTVATKGIPLAYAAASYLNVPVVIVRKDNKVTEGSTVSINYVSGSSNRIQTMSLAKRSMKTGSNVLIIDDFMKAGGTINGMINLLDEFNANVAGIGVLVEAEGVDERLVDEYMSLLTLSTINMKEKSIEIQNGNFLRFFKDN 276
               SCOP domains d1o57a1 A:2-74 N-terminal domain of Bacillus PurR                        d1o57a2 A:75-276 Pur operon repressor (PurR), C-terminal domain                                                                                                                                            SCOP domains
               CATH domains 1o57A01 A:2-73 'winged helix' repressor DNA binding domain              1o57A02 A:74-276  [code=3.40.50.2020, no name defined]                                                                                                                                                      CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhh......hhhhhhhhh..hhhhhhhhhhhhhhhhhhh..eeeeee.....eeeeee..hhhhhhhhhhhhhhhhhhhh.ee...ee.......hhhhhhhhhhhhhhhh......eeeee...hhhhhhhhhhhhh..eeee...-----..eeeeeee......eeeeeee.hhh....eeeeeeeee..hhhhhhhhhhhhhhh.eeeeeeeeeee...........eeeeeee.........eeee.hhhhhh... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1o57 A   2 KFRRSGRLVDLTNYLLTHPHELIPLTFFSERYESAKSSISEDLTIIKQTFEQQGIGTLLTVPGAAGGVKYIPKMKQAEAEEFVQTLGQSLANPERILPGGYVYLTDILGKPSVLSKVGKLFASVFAEREIDVVMTVATKGIPLAYAAASYLNVPVVIVRKD-----GSTVSINYVSGSSNRIQTMSLAKRSMKTGSNVLIIDDFMKAGGTINGMINLLDEFNANVAGIGVLVEAEGVDERLVDEYMSLLTLSTINMKEKSIEIQNGNFLRFFKDN 276
                                    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     
                                                                                                                                                                                          162   168

Chain B from PDB  Type:PROTEIN  Length:269
 aligned with PURR_BACSU | P37551 from UniProtKB/Swiss-Prot  Length:285

    Alignment length:274
                                    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    
           PURR_BACSU     1 MKFRRSGRLVDLTNYLLTHPHELIPLTFFSERYESAKSSISEDLTIIKQTFEQQGIGTLLTVPGAAGGVKYIPKMKQAEAEEFVQTLGQSLANPERILPGGYVYLTDILGKPSVLSKVGKLFASVFAEREIDVVMTVATKGIPLAYAAASYLNVPVVIVRKDNKVTEGSTVSINYVSGSSNRIQTMSLAKRSMKTGSNVLIIDDFMKAGGTINGMINLLDEFNANVAGIGVLVEAEGVDERLVDEYMSLLTLSTINMKEKSIEIQNGNFLRFFK 274
               SCOP domains d1o57b1 B:1-74 N-terminal domain of Bacillus PurR                         d1o57b2 B:75-274 Pur operon repressor (PurR), C-terminal domain                                                                                                                                          SCOP domains
               CATH domains -1o57B01 B:2-73 'winged helix' repressor DNA binding domain              1o57B02 B:74-274  [code=3.40.50.2020, no name defined]                                                                                                                                                    CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhhhh.....eehhhhhhhhh.hhhhhhhhhhhhhhhhhhh..eeeeee.....eeeeee..hhhhhhhhhhhhhhhhhhhh.ee...ee...hhhhhhhhhhhhhhhhhhhh......eeeee...hhhhhhhhhhhhh..eeee...-----..eeeeeee......eeeeeee.hhh....eeeeeeeee..hhhhhhhhhhhhh...eeeeeeeeeee...........eeeeeeeeee....eeeeee.hhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1o57 B   1 MKFRRSGRLVDLTNYLLTHPHELIPLTFFSERYESAKSSISEDLTIIKQTFEQQGIGTLLTVPGAAGGVKYIPKMKQAEAEEFVQTLGQSLANPERILPGGYVYLTDILGKPSVLSKVGKLFASVFAEREIDVVMTVATKGIPLAYAAASYLNVPVVIVRKD-----GSTVSINYVSGSSNRIQTMSLAKRSMKTGSNVLIIDDFMKAGGTINGMINLLDEFNANVAGIGVLVEAEGVDERLVDEYMSLLTLSTINMKEKSIEIQNGNFLRFFK 274
                                    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    
                                                                                                                                                                                           162   168

Chain C from PDB  Type:PROTEIN  Length:269
 aligned with PURR_BACSU | P37551 from UniProtKB/Swiss-Prot  Length:285

    Alignment length:274
                                    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    
           PURR_BACSU     1 MKFRRSGRLVDLTNYLLTHPHELIPLTFFSERYESAKSSISEDLTIIKQTFEQQGIGTLLTVPGAAGGVKYIPKMKQAEAEEFVQTLGQSLANPERILPGGYVYLTDILGKPSVLSKVGKLFASVFAEREIDVVMTVATKGIPLAYAAASYLNVPVVIVRKDNKVTEGSTVSINYVSGSSNRIQTMSLAKRSMKTGSNVLIIDDFMKAGGTINGMINLLDEFNANVAGIGVLVEAEGVDERLVDEYMSLLTLSTINMKEKSIEIQNGNFLRFFK 274
               SCOP domains d1o57c1 C:1-74 N-terminal domain of Bacillus PurR                         d1o57c2 C:75-274 Pur operon repressor (PurR), C-terminal domain                                                                                                                                          SCOP domains
               CATH domains -1o57C01 C:2-73 'winged helix' repressor DNA binding domain              1o57C02 C:74-274  [code=3.40.50.2020, no name defined]                                                                                                                                                    CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhhhh.....eehhhhhhhh..hhhhhhhhhhhhhhhhhhh..eeeeee.....eeeeee..hhhhhhhhhhhhhhhhhhhh.ee...ee.hhhhhhhhhhhhhhhhhhhhhh......eeeee...hhhhhhhhhhhhh..eeee...-----..eeeeeeee..eeeeeeeeee.hhh....eeeeeeeee..hhhhhhhhhhhhh...eeeeeeeeeee...........eeeeeeeeee....eeeeee.hhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1o57 C   1 MKFRRSGRLVDLTNYLLTHPHELIPLTFFSERYESAKSSISEDLTIIKQTFEQQGIGTLLTVPGAAGGVKYIPKMKQAEAEEFVQTLGQSLANPERILPGGYVYLTDILGKPSVLSKVGKLFASVFAEREIDVVMTVATKGIPLAYAAASYLNVPVVIVRKD-----GSTVSINYVSGSSNRIQTMSLAKRSMKTGSNVLIIDDFMKAGGTINGMINLLDEFNANVAGIGVLVEAEGVDERLVDEYMSLLTLSTINMKEKSIEIQNGNFLRFFK 274
                                    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    
                                                                                                                                                                                           162   168

Chain D from PDB  Type:PROTEIN  Length:270
 aligned with PURR_BACSU | P37551 from UniProtKB/Swiss-Prot  Length:285

    Alignment length:275
                                    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     
           PURR_BACSU     2 KFRRSGRLVDLTNYLLTHPHELIPLTFFSERYESAKSSISEDLTIIKQTFEQQGIGTLLTVPGAAGGVKYIPKMKQAEAEEFVQTLGQSLANPERILPGGYVYLTDILGKPSVLSKVGKLFASVFAEREIDVVMTVATKGIPLAYAAASYLNVPVVIVRKDNKVTEGSTVSINYVSGSSNRIQTMSLAKRSMKTGSNVLIIDDFMKAGGTINGMINLLDEFNANVAGIGVLVEAEGVDERLVDEYMSLLTLSTINMKEKSIEIQNGNFLRFFKDN 276
               SCOP domains d1o57d1 D:2-74 N-terminal domain of Bacillus PurR                        d1o57d2 D:75-276 Pur operon repressor (PurR), C-terminal domain                                                                                                                                            SCOP domains
               CATH domains 1o57D01 D:2-73 'winged helix' repressor DNA binding domain              1o57D02 D:74-276  [code=3.40.50.2020, no name defined]                                                                                                                                                      CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhh......hhhhhhhhhh.hhhhhhhhhhhhhhhhhhh..eeeeee.....eeeeee..hhhhhhhhhhhhhhhhhhhh.ee...ee.hhhhhhhhhhhhhhhhhhhhhh......eeeee...hhhhhhhhhhhhh..eeeeee.-----..eeeeee........eeeeee.hhh....eeeeeeeee..hhhhhhhhhhhhh...eeeeeeeeeee.hhhhh.....eeeeee...........eee.hhhhhh... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1o57 D   2 KFRRSGRLVDLTNYLLTHPHELIPLTFFSERYESAKSSISEDLTIIKQTFEQQGIGTLLTVPGAAGGVKYIPKMKQAEAEEFVQTLGQSLANPERILPGGYVYLTDILGKPSVLSKVGKLFASVFAEREIDVVMTVATKGIPLAYAAASYLNVPVVIVRKD-----GSTVSINYVSGSSNRIQTMSLAKRSMKTGSNVLIIDDFMKAGGTINGMINLLDEFNANVAGIGVLVEAEGVDERLVDEYMSLLTLSTINMKEKSIEIQNGNFLRFFKDN 276
                                    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     
                                                                                                                                                                                          162   168

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: All alpha proteins (14657)

Fold: DNA/RNA-binding 3-helical bundle (1299)

Superfamily: Winged helix DNA-binding domain (576)

Family: N-terminal domain of Bacillus PurR (2)

Protein domain: N-terminal domain of Bacillus PurR (2)

Bacillus subtilis [TaxId: 1423] (2)

1a	d1o57a1	A:2-74
1b	d1o57b1	B:1-74
1c	d1o57c1	C:1-74
1d	d1o57d1	D:2-74

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

Fold: PRTase-like (145)

Superfamily: PRTase-like (145)

Family: Phosphoribosyltransferases (PRTases) (100)

Protein domain: Pur operon repressor (PurR), C-terminal domain (2)

Bacillus subtilis [TaxId: 1423] (2)

2a	d1o57a2	A:75-276
2b	d1o57b2	B:75-274
2c	d1o57c2	C:75-274
2d	d1o57d2	D:75-276

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

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

Topology: Rossmann fold (7312)

Homologous Superfamily: [code=3.40.50.2020, no name defined] (117)

Bacillus subtilis. Organism_taxid: 1423. (8)

1a	1o57B02	B:74-274
1b	1o57C02	C:74-274
1c	1o57A02	A:74-276
1d	1o57D02	D:74-276

Class: Mainly Alpha (13335)

Architecture: Orthogonal Bundle (10391)

Topology: Arc Repressor Mutant, subunit A (1030)

Homologous Superfamily: 'winged helix' repressor DNA binding domain (507)

Bacillus subtilis. Organism_taxid: 1423. (15)

2a	1o57A01	A:2-73
2b	1o57B01	B:2-73
2c	1o57C01	C:2-73
2d	1o57D01	D:2-73

(no "Pfam Domain" information available for 1O57)

Asymmetric Unit(hide GO term definitions)

Chain A,B,C,D (PURR_BACSU | P37551)

molecular function
	GO:0003677	DNA binding	Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
biological process
	GO:0045982	negative regulation of purine nucleobase metabolic process	Any process that stops, prevents, or reduces the frequency, rate or extent of the chemical reactions and pathways involving purine nucleobases.
	GO:0045892	negative regulation of transcription, DNA-templated	Any process that stops, prevents, or reduces the frequency, rate or extent of cellular DNA-templated transcription.
	GO:0009116	nucleoside metabolic process	The chemical reactions and pathways involving a nucleoside, a nucleobase linked to either beta-D-ribofuranose (a ribonucleoside) or 2-deoxy-beta-D-ribofuranose, (a deoxyribonucleoside), e.g. adenosine, guanosine, inosine, cytidine, uridine and deoxyadenosine, deoxyguanosine, deoxycytidine and thymidine (= deoxythymidine).
	GO:0006355	regulation of transcription, DNA-templated	Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
	GO:0006351	transcription, DNA-templated	The cellular synthesis of RNA on a template of DNA.

Asymmetric Unit
	Complete Structure
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	Ligands, Modified Residues, Ions
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	Cis Peptide Bonds
		Ala A:138 - Thr A:139	[ RasMol ]
		Ala B:138 - Thr B:139	[ RasMol ]
		Ala C:138 - Thr C:139	[ RasMol ]
		Ala D:138 - Thr D:139	[ RasMol ]

Biological Units
	Complete Structure
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		Biological Unit 2	[ Jena3D ]

Jmol
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Access by PDB/NDB ID
	1o57
		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
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	PURR_BACSU \| P37551	:	1p4a

(no "Related Entries Specified in the PDB File" available for 1O57)

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (6, 16)

Sites (16, 16)

SS Bonds (0, 0)

Cis Peptide Bonds (4, 4)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (0, 0)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (2, 8)

CATH Domains (2, 8)

Pfam Domains (0, 0)

Gene Ontology (6, 6)

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Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File