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Title :   CRYSTAL STRUCTURE OF THE BACTERIAL ANTITOXIN HIGA FROM ESCHERICHIA COLI AT PH 4.0. NORTHEAST STRUCTURAL GENOMICS CONSORTIUM TARGET ER390.

Authors :   M. A. Arbing, M. Abashidze, J. M. Hurley, L. Zhao, H. Janjua, K. Cunningh L. C. Ma, R. Xiao, J. Liu, M. C. Baran, T. B. Acton, B. Rost, M. Inouye, N. A G. T. Montelione, J. F. Hunt, Northeast Structural Genomics Conso (Nesg)

Date :   13 Sep 06 (Deposition) - 26 Sep 06 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.88

Chains :   Asym. Unit : A
Biol. Unit 1: A  (1x)
Biol. Unit 2: A  (2x)

Keywords :   Helix-Turn-Helix, Structural Genomics, Psi-2, Protein Structure Initiative, Northeast Structural Genomics Consortium, Nesg, Dna Binding Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   M. A. Arbing, M. Abashidze, J. M. Hurley, L. Zhao, H. Janjua, K. Cunningham, L. C. Ma, R. Xiao, J. Liu, M. C. Baran, T. B. Acton, B. Rost M. Inouye, N. A. Woychik, G. T. Montelione, J. F. Hunt
Crystal Structure Of The Bacterial Antitoxin Higa From Escherichia Coli.
To Be Published
PubMed: search

Molecule 1 - ANTITOXIN HIGA
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET28-HIGA
	Expression System Strain	:	BL21(DE3)+ MAGIC
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Gene	:	HIGA
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	199310
	Strain	:	CFT073
	Synonym	:	PUTATIVE HTH-TYPE TRANSCRIPTIONAL REGULATOR YDDM

		1
Asymmetric Unit	:	A
Biological Unit 1 (1x)	:	A
Biological Unit 2 (2x)	:	A

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (2, 4)

No.	Name	Count	Type	Full Name
1	MG	1	Ligand/Ion	MAGNESIUM ION
2	MSE	3	Mod. Amino Acid	SELENOMETHIONINE

Biological Unit 1 (1, 3)

No.	Name	Count	Type	Full Name
1	MG	-1	Ligand/Ion	MAGNESIUM ION
2	MSE	3	Mod. Amino Acid	SELENOMETHIONINE

Biological Unit 2 (1, 6)

No.	Name	Count	Type	Full Name
1	MG	-1	Ligand/Ion	MAGNESIUM ION
2	MSE	6	Mod. Amino Acid	SELENOMETHIONINE

Asymmetric Unit (1, 1)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	ALA A:34 , THR A:37 , SER A:62 , SER A:86	BINDING SITE FOR RESIDUE MG A 5001

(no "SS Bond" information available for 2ICP)

(no "Cis Peptide Bond" information available for 2ICP)

(no "SAP(SNP)/Variant" information available for 2ICP)

Asymmetric Unit (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	HTH_CROC1	PS50943	Cro/C1-type HTH domain profile.	YDDM_ECOL6	13-67	1	A:13-67
1	HTH_CROC1	PS50943	Cro/C1-type HTH domain profile.	YDDM_ECOLI	13-67	1	A:13-67

Biological Unit 1 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	HTH_CROC1	PS50943	Cro/C1-type HTH domain profile.	YDDM_ECOL6	13-67	1	A:13-67
1	HTH_CROC1	PS50943	Cro/C1-type HTH domain profile.	YDDM_ECOLI	13-67	1	A:13-67

Biological Unit 2 (1, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	HTH_CROC1	PS50943	Cro/C1-type HTH domain profile.	YDDM_ECOL6	13-67	2	A:13-67
1	HTH_CROC1	PS50943	Cro/C1-type HTH domain profile.	YDDM_ECOLI	13-67	2	A:13-67

(no "Exon" information available for 2ICP)

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:87
 aligned with YDDM_ECOL6 | P67700 from UniProtKB/Swiss-Prot  Length:94

    Alignment length:87
                                    17        27        37        47        57        67        77        87       
            YDDM_ECOL6    8 RPGDIIQESLDELNVSLREFARAMEIAPSTASRLLTGKAALTPEMAIKLSVVIGSSPQMWLNLQNAWSLAEAEKTVDVSRLRRLVTQ 94
               SCOP domains d2icpa1 A:8-94 Antitoxin HigA                                                           SCOP domains
               CATH domains 2icpA01 A:8-82 lambda repressor-like DNA-binding domains                   ------------ CATH domains
               Pfam domains --------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhh.hhhhhhhhhh.hhhhhhhhhh.....hhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) -----HTH_CROC1  PDB: A:13-67 UniProt: 13-67                 --------------------------- PROSITE (2)
                 Transcript --------------------------------------------------------------------------------------- Transcript
                  2icp A  8 RPGDIIQESLDELNVSLREFARAmEIAPSTASRLLTGKAALTPEmAIKLSVVIGSSPQmWLNLQNAWSLAEAEKTVDVSRLRRLVTQ 94
                                    17        27   |    37        47    |   57        67        77        87       
                                                  31-MSE               52-MSE        66-MSE

Chain A from PDB  Type:PROTEIN  Length:87
 aligned with YDDM_ECOLI | P67699 from UniProtKB/Swiss-Prot  Length:94

    Alignment length:87
                                    17        27        37        47        57        67        77        87       
            YDDM_ECOLI    8 RPGDIIQESLDELNVSLREFARAMEIAPSTASRLLTGKAALTPEMAIKLSVVIGSSPQMWLNLQNAWSLAEAEKTVDVSRLRRLVTQ 94
               SCOP domains d2icpa1 A:8-94 Antitoxin HigA                                                           SCOP domains
               CATH domains 2icpA01 A:8-82 lambda repressor-like DNA-binding domains                   ------------ CATH domains
               Pfam domains --------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhh.hhhhhhhhhh.hhhhhhhhhh.....hhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----HTH_CROC1  PDB: A:13-67 UniProt: 13-67                 --------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------- Transcript
                  2icp A  8 RPGDIIQESLDELNVSLREFARAmEIAPSTASRLLTGKAALTPEmAIKLSVVIGSSPQmWLNLQNAWSLAEAEKTVDVSRLRRLVTQ 94
                                    17        27   |    37        47    |   57        67        77        87       
                                                  31-MSE               52-MSE        66-MSE

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: lambda repressor-like DNA-binding domains (180)

Superfamily: lambda repressor-like DNA-binding domains (180)

Family: SinR domain-like (36)

Protein domain: Antitoxin HigA (4)

Escherichia coli [TaxId: 562] (2)

d2icpa1

A:8-94

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Alpha (13335)

Architecture: Orthogonal Bundle (10391)

Topology: 434 Repressor (Amino-terminal Domain) (116)

Homologous Superfamily: lambda repressor-like DNA-binding domains (100)

Escherichia coli cft073. Organism_taxid: 199310. Strain: cft073. (2)

2icpA01

A:8-82

(no "Pfam Domain" information available for 2ICP)

Asymmetric Unit(hide GO term definitions)

Chain A (YDDM_ECOL6 | P67700)

molecular function
	GO:0003677	DNA binding	Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
	GO:0043565	sequence-specific DNA binding	Interacting selectively and non-covalently with DNA of a specific nucleotide composition, e.g. GC-rich DNA binding, or with a specific sequence motif or type of DNA e.g. promotor binding or rDNA binding.
biological process
	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.

Chain A (YDDM_ECOLI | P67699)

molecular function
	GO:0003677	DNA binding	Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
	GO:0043565	sequence-specific DNA binding	Interacting selectively and non-covalently with DNA of a specific nucleotide composition, e.g. GC-rich DNA binding, or with a specific sequence motif or type of DNA e.g. promotor binding or rDNA binding.
biological process
	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
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