1JHG - JenaLib

Title :   TRP REPRESSOR MUTANT V58I

Authors :   C. L. Lawson

Date :   19 Jul 96 (Deposition) - 12 Mar 97 (Release) - 21 May 14 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.30

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

Keywords :   Regulatory Protein-Peptide Complex, Dna Binding Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   C. L. Lawson
An Atomic View Of The L-Tryptophan Binding Site Of Trp Repressor.
Nat. Struct. Biol. V. 3 986 1996
PubMed-ID: 8946848
(for further references see the PDB file header)

Compounds

Molecule 1 - TRP OPERON REPRESSOR
	Cell Line	:	BL21
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI BL21(DE3)
	Expression System Cell	:	CYTOPLASM
	Expression System Gene	:	TRPRI58
	Expression System Plasmid	:	PET13A
	Expression System Strain	:	BL21 (DE3)
	Expression System Taxid	:	469008
	Mutation	:	YES
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	562
	Other Details	:	I58 TRP REPRESSOR WAS GROWN IN ESCHERICHIA COLI STRAIN BL21 (DE3) USING T7 EXPRESSION SYSTEM VECTORS

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 2)

Sites (3, 3)

Asymmetric Unit (3, 3)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	HIS A:16 , TRP A:19 , ASN A:40 , ARG A:63 , LYS A:106 , ASP A:108 , HOH A:284 , HOH A:285	BINDING SITE FOR RESIDUE PO4 A 120
2	AC2	SOFTWARE	ASN A:40 , LEU A:41 , LEU A:43 , THR A:44 , ARG A:54 , THR A:81 , ARG A:84 , GLY A:85 , SER A:88 , HOH A:220 , HOH A:257 , HOH A:319	BINDING SITE FOR RESIDUE TRP A 111
3	WBS	UNKNOWN	LEU A:41 , THR A:44 , ARG A:54 , ILE A:57 , ILE A:58 , THR A:81 , ARG A:84 , GLY A:85 , SER A:88	L-TRYPTOPHAN BINDING SITE PLEASE NOTE THAT LEU 41 AND THR 44 FORM PART OF THE BINDING SITE ON THE SUBUNIT OF REPRESSOR THAT MAY BE GENERATED BY THE INDICATED SYMMETRY OPERATOR.

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (0, 0)

Exons (0, 0)

Sequences/Alignments

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)
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Chain A from PDB  Type:PROTEIN  Length:102
 aligned with TRPR_ECOLI | P0A881 from UniProtKB/Swiss-Prot  Length:108

    Alignment length:102
                                                                                                                              108 
                                    17        27        37        47        57        67        77        87        97       107| 
           TRPR_ECOLI     8 SAAMAEQRHQEWLRFVDLLKNAYQNDLHLPLLNLMLTPDEREALGTRVRIVEELLRGEMSQRELKNELGAGIATITRGSNSLKAAPVELRQWLEEVLLKSD-   -
               SCOP domains d1jhga_ A: Trp repressor, TrpR                                                                         SCOP domains
               CATH domains 1jhgA00 A:8-108 Trp Operon Repressor; Chain A                                                        - CATH domains
               Pfam domains ---------Trp_repressor-1jhgA01 A:17-104                                                          ----- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhh..hhhhhhhhhhhhhhhhhhh....hhhhhhhh...hhhhhhhhhhhhh..hhhhhhhhhhh..... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------ Transcript
                 1jhg A   8 SAAMAEQRHQEWLRFVDLLKNAYQNDLHLPLLNLMLTPDEREALGTRVRIIEELLRGEMSQRELKNELGAGIATITRGSNSLKAAPVELRQWLEEVLLKSDW 111
                                    17        27        37        47        57        67        77        87        97       107||
                                                                                                                              108|
                                                                                                                               111

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Classification and Annotation

SCOP Domains (1, 1)

CATH Domains (1, 1)

Pfam Domains (1, 1)

Gene Ontology (8, 8)

Asymmetric Unit(hide GO term definitions)

Chain A (TRPR_ECOLI | P0A881)

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.
	GO:0003700	transcription factor activity, sequence-specific DNA binding	Interacting selectively and non-covalently with a specific DNA sequence in order to modulate transcription. The transcription factor may or may not also interact selectively with a protein or macromolecular complex.
biological process
	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: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.
cellular component
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
	GO:0005622	intracellular	The living contents of a cell; the matter contained within (but not including) the plasma membrane, usually taken to exclude large vacuoles and masses of secretory or ingested material. In eukaryotes it includes the nucleus and cytoplasm.

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