1K0E - JenaLib

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Title :   THE CRYSTAL STRUCTURE OF AMINODEOXYCHORISMATE SYNTHASE FROM FORMATE GROWN CRYSTALS

Authors :   J. F. Parsons, P. Y. Jensen, A. S. Pachikara, A. J. Howard, E. Eisenstein, J. E. Ladner

Date :   19 Sep 01 (Deposition) - 27 Feb 02 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.00

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

Keywords :   Aminodeoxychorismate Synthase, Chorismate, Glutamine, Tryptophan, Paba Synthase, P-Aminobenzoate Synthase, Lyase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   J. F. Parsons, P. Y. Jensen, A. S. Pachikara, A. J. Howard, E. Eisenstein, J. E. Ladner
Structure Of Escherichia Coli Aminodeoxychorismate Synthase: Architectural Conservation And Diversity In Chorismate-Utilizing Enzymes.
Biochemistry V. 41 2198 2002
PubMed-ID: 11841211 | Reference-DOI: 10.1021/BI015791B
(for further references see the PDB file header)

Molecule 1 - P-AMINOBENZOATE SYNTHASE COMPONENT I
	Chains	:	A, B
	EC Number	:	4.1.3.-
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PKPABB
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	562
	Synonym	:	AMINODEOXYCHORISMATE SYNTHASE, ADC SYNTHASE

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

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (2, 3)

No.	Name	Count	Type	Full Name
1	FMT	1	Ligand/Ion	FORMIC ACID
2	TRP	2	Mod. Amino Acid	TRYPTOPHAN

Biological Unit 1 (2, 2)

No.	Name	Count	Type	Full Name
1	FMT	1	Ligand/Ion	FORMIC ACID
2	TRP	1	Mod. Amino Acid	TRYPTOPHAN

Biological Unit 2 (1, 1)

No.	Name	Count	Type	Full Name
1	FMT	-1	Ligand/Ion	FORMIC ACID
2	TRP	1	Mod. Amino Acid	TRYPTOPHAN

Asymmetric Unit (3, 3)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	LEU A:34 , HIS A:35 , SER A:36 , TYR A:43 , SER A:44 , ARG A:45 , PHE A:46 , PRO A:240 , PHE A:241 , SER A:242 , ILE A:394 , HOH A:1049	BINDING SITE FOR RESIDUE TRP A 601
2	AC2	SOFTWARE	HIS B:35 , SER B:36 , TYR B:43 , SER B:44 , ARG B:45 , PHE B:46 , PRO B:240 , PHE B:241 , SER B:242 , ILE B:394 , HOH B:1144	BINDING SITE FOR RESIDUE TRP B 602
3	AC3	SOFTWARE	ARG A:410 , ALA A:423 , GLY A:424 , LYS A:443	BINDING SITE FOR RESIDUE FMT A 1701

(no "SS Bond" information available for 1K0E)

Asymmetric Unit

No.	Residues
1	Phe A:362	-	Pro A:363
2	Ala A:370	-	Pro A:371
3	Phe B:362	-	Pro B:363
4	Ala B:370	-	Pro B:371

(no "SAP(SNP)/Variant" information available for 1K0E)

(no "PROSITE Motif" information available for 1K0E)

(no "Exon" information available for 1K0E)

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:438
 aligned with PABB_ECOLI | P05041 from UniProtKB/Swiss-Prot  Length:453

    Alignment length:452
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            453 
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452| 
           PABB_ECOLI     3 TLSPAVITLLWRQDAAEFYFSRLSHLPWAMLLHSGYADHPYSRFDIVVAEPICTLTTFGKETVVSESEKRTTTTDDPLQVLQQVLDRADIRPTHNEDLPFQGGALGLFGYDLGRRFESLPEIAEQDIVLPDMAVGIYDWALIVDHQRHTVSLLSHNDVNARRAWLESQQFSPQEDFTLTSDWQSNMTREQYGEKFRQVQEYLHSGDCYQVNLAQRFHATYSGDEWQAFLQLNQANRAPFSAFLRLEQGAILSLSPERFILCDNSEIQTRPIKGTLPRLPDPQEDSKQAVKLANSAKDRAENLMIVDLMRNDIGRVAVAGSVKVPELFVVEPFPAVHHLVSTITAQLPEQLHASDLLRAAFPGGSITGAPKVRAMEIIDELEPQRRNAWCGSIGYLSFCGNMDTSITIRTLTAINGQIFCSAGGGIVADSQEEAEYQETFDKVNRILKQLEK-   -
               SCOP domains d1k0ea_ A: P-aminobenzoate synthase component I                                                                                                                                                                                                                                                                                                                                                                                                                      SCOP domains
               CATH domains 1k0eA00 A:3-453 Anthranilate synthase                                                                                                                                                                                                                                                                                                                                                                                                                              - CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeeee....hhhhhhhh........eeee..........eeeee....eeeeee..eeeeee..eeeee..hhhhhhhhhhhhh..............eeeeee.hhhhhhh...............eeeeee.eeeeee....eeeeee..hhhhhhhhhhhh........ee....ee..hhhhhhhhhhhhhhhhhh.....eeeeeeeeeeee.hhhhhhhhhhhhhh..eeeeee....eeeeee....eeee..eeee..eeeeee.--------------.......hhhhhhhhhhhhhhh........eeeeeeeeee...eeeeeeeeeee.....hhhhhhhhhh.hhhhh..hhhhhhhhhhhhh.........eeeeee....eee.....eeeee..eeeeeeeeee....hhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1k0e A   3 TLSPAVITLLWRQDAAEFYFSRLSHLPWAMLLHSGYADHPYSRFDIVVAEPICTLTTFGKETVVSESEKRTTTTDDPLQVLQQVLDRADIRPTHNEDLPFQGGALGLFGYDLGRRFESLPEIAEQDIVLPDMAVGIYDWALIVDHQRHTVSLLSHNDVNARRAWLESQQFSPQEDFTLTSDWQSNMTREQYGEKFRQVQEYLHSGDCYQVNLAQRFHATYSGDEWQAFLQLNQANRAPFSAFLRLEQGAILSLSPERFILCDNSEIQTRPIKGTLPR--------------ANSAKDRAENLMIVDLMRNDIGRVAVAGSVKVPELFVVEPFPAVHHLVSTITAQLPEQLHASDLLRAAFPGGSITGAPKVRAMEIIDELEPQRRNAWCGSIGYLSFCGNMDTSITIRTLTAINGQIFCSAGGGIVADSQEEAEYQETFDKVNRILKQLEKW 601
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272      |  -         - |     302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452||
                                                                                                                                                                                                                                                                                                              279            294                                                                                                                                                            453|
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             601

Chain B from PDB  Type:PROTEIN  Length:415
 aligned with PABB_ECOLI | P05041 from UniProtKB/Swiss-Prot  Length:453

    Alignment length:454
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              453 
                                    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       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450  | 
           PABB_ECOLI     1 MKTLSPAVITLLWRQDAAEFYFSRLSHLPWAMLLHSGYADHPYSRFDIVVAEPICTLTTFGKETVVSESEKRTTTTDDPLQVLQQVLDRADIRPTHNEDLPFQGGALGLFGYDLGRRFESLPEIAEQDIVLPDMAVGIYDWALIVDHQRHTVSLLSHNDVNARRAWLESQQFSPQEDFTLTSDWQSNMTREQYGEKFRQVQEYLHSGDCYQVNLAQRFHATYSGDEWQAFLQLNQANRAPFSAFLRLEQGAILSLSPERFILCDNSEIQTRPIKGTLPRLPDPQEDSKQAVKLANSAKDRAENLMIVDLMRNDIGRVAVAGSVKVPELFVVEPFPAVHHLVSTITAQLPEQLHASDLLRAAFPGGSITGAPKVRAMEIIDELEPQRRNAWCGSIGYLSFCGNMDTSITIRTLTAINGQIFCSAGGGIVADSQEEAEYQETFDKVNRILKQLEK-   -
               SCOP domains d1k0eb_ B: P-aminobenzoate synthase component I                                                                                                                                                                                                                                                                                                                                                                                                                        SCOP domains
               CATH domains 1k0eB00 B:1-453 Anthranilate synthase                                                                                                                                                                                                                                                                                                                                                                                                                                - CATH domains
           Pfam domains (1) ---------------Anth_synt_I_N-1k0eB01 B:16-154                                                                                                             ----------------------------------Chorismate_bind-1k0eB03 B:189-443                                                                                                                                                                                                                              ----------- Pfam domains (1)
           Pfam domains (2) ---------------Anth_synt_I_N-1k0eB02 B:16-154                                                                                                             ----------------------------------Chorismate_bind-1k0eB04 B:189-443                                                                                                                                                                                                                              ----------- Pfam domains (2)
         Sec.struct. author ......eeeee....hhhhhhhhh......eeeee..........eeeee....eeeeee..eeeee....eeee..hhhhhhhhhhhhhh.............eeeeee.hhhhhhh...............eeeeee.eeeeee....eeeeee..hhhhhhhhhhhh........ee....ee..hhhhhhhhhhhhhhhhh.....eeeeeeeeeeeee.hhhhhhhhhhhhhh...eeeee....eeee....eeeeee..eee..-------------------------..hhhhhhhhhhhhhhhhhhhh.........--------------...eee.....hhhhhhhhhh.hhhh.eehhhhhhhhhhhhh.........eeeeee....eeee....eeeee..eeeeeeeeeee...hhhhhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1k0e B   1 MKTLSPAVITLLWRQDAAEFYFSRLSHLPWAMLLHSGYADHPYSRFDIVVAEPICTLTTFGKETVVSESEKRTTTTDDPLQVLQQVLDRADIRPTHNEDLPFQGGALGLFGYDLGRRFESLPEIAEQDIVLPDMAVGIYDWALIVDHQRHTVSLLSHNDVNARRAWLESQQFSPQEDFTLTSDWQSNMTREQYGEKFRQVQEYLHSGDCYQVNLAQRFHATYSGDEWQAFLQLNQANRAPFSAFLRLEQGAILSLSPERFILCDNSEIQTR-------------------------AKDRAENLMIVDLMRNDIGRVAVAGSVKVPE--------------STITAQLPEQLHASDLLRAAFPGGSITGAPKVRAMEIIDELEPQRRNAWCGSIGYLSFCGNMDTSITIRTLTAINGQIFCSAGGGIVADSQEEAEYQETFDKVNRILKQLEKW 602
                                    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|        -         -      |300       310       320      |  -         - |     350       360       370       380       390       400       410       420       430       440       450  ||
                                                                                                                                                                                                                                                                                                        271                       297                           327            342                                                                                                            453|
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               602

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) (23004)

Fold: ADC synthase (21)

Superfamily: ADC synthase (21)

Family: ADC synthase (20)

Protein domain: P-aminobenzoate synthase component I (2)

Escherichia coli [TaxId: 562] (2)

1a	d1k0ea_	A:
1b	d1k0eb_	B:

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 4-Layer Sandwich (459)

Topology: Anthranilate synthase (6)

Homologous Superfamily: Anthranilate synthase (6)

Escherichia coli. Organism_taxid: 562. (1)

1a	1k0eA00	A:3-453
1b	1k0eB00	B:1-453

Asymmetric Unit(hide GO term definitions)

Chain A,B (PABB_ECOLI | P05041)

molecular function
	GO:0046820	4-amino-4-deoxychorismate synthase activity	Catalysis of the reaction: L-glutamine + chorismate = 4-amino-4-deoxychorismate + L-glutamate. It is composed of two enzymatic activities (which may be present on one or two polypeptides); the first is a glutaminase which yields ammonia from glutamine, releasing glutamate. The ammonia is used by the second activity which catalyzes the amination of chorismate to form 4-amino-4-deoxychorismate.
	GO:0000287	magnesium ion binding	Interacting selectively and non-covalently with magnesium (Mg) ions.
	GO:0016833	oxo-acid-lyase activity	Catalysis of the cleavage of a C-C bond by other means than by hydrolysis or oxidation, of a 3-hydroxy acid.
	GO:0016740	transferase activity	Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
biological process
	GO:0009058	biosynthetic process	The chemical reactions and pathways resulting in the formation of substances; typically the energy-requiring part of metabolism in which simpler substances are transformed into more complex ones.
	GO:0046656	folic acid biosynthetic process	The chemical reactions and pathways resulting in the formation of folic acid, pteroylglutamic acid.
	GO:0009396	folic acid-containing compound biosynthetic process	The chemical reactions and pathways resulting in the formation of folic acid and its derivatives.
	GO:0046654	tetrahydrofolate biosynthetic process	The chemical reactions and pathways resulting in the formation of tetrahydrofolate, 5,6,7,8-tetrahydrofolic acid, a folate derivative bearing additional hydrogens on the pterin group.

Asymmetric Unit
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	Cis Peptide Bonds
		Ala A:370 - Pro A:371	[ RasMol ]
		Ala B:370 - Pro B:371	[ RasMol ]
		Phe A:362 - Pro A:363	[ RasMol ]
		Phe B:362 - Pro B:363	[ RasMol ]

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(no "Related Entries Specified in the PDB File" available for 1K0E)

Description

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Ligands, Modified Residues, Ions (2, 3)

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Cis Peptide Bonds (4, 4)

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