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Title :   STRUCTURE OF FULLY LIGATED ADENYLOSUCCINATE SYNTHETASE FROM PLASMODIUM FALCIPARUM

Authors :   K. Eaazhisai, R. Jayalakshmi, P. Gayathri, R. P. Anand, K. Sumathy, H. B M. R. Murthy

Date :   10 May 03 (Deposition) - 03 Feb 04 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.00

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

Keywords :   Ligase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   K. Eaazhisai, R. Jayalakshmi, P. Gayathri, R. P. Anand, K. Sumathy, H. Balaram, M. R. Murthy
Crystal Structure Of Fully Ligated Adenylosuccinate Synthetase From Plasmodium Falciparum.
J. Mol. Biol. V. 335 1251 2004
PubMed-ID: 14729341 | Reference-DOI: 10.1016/J.JMB.2003.11.036

Molecule 1 - ADENYLOSUCCINATE SYNTHETASE
	Chains	:	A
	EC Number	:	6.3.4.4
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI BL21(DE3)
	Expression System Plasmid	:	PET23D
	Expression System Strain	:	BL21 (DE3)
	Expression System Taxid	:	469008
	Expression System Vector Type	:	PLASMID
	Organism Common	:	MALARIA PARASITE P. FALCIPARUM
	Organism Scientific	:	PLASMODIUM FALCIPARUM
	Organism Taxid	:	5833

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

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (5, 5)

No.	Name	Count	Type	Full Name
1	GDP	1	Ligand/Ion	GUANOSINE-5'-DIPHOSPHATE
2	HDA	1	Ligand/Ion	HADACIDIN
3	IMO	1	Ligand/Ion	6-O-PHOSPHORYL INOSINE MONOPHOSPHATE
4	MG	1	Ligand/Ion	MAGNESIUM ION
5	NO3	1	Ligand/Ion	NITRATE ION

Biological Unit 1 (4, 8)

No.	Name	Count	Type	Full Name
1	GDP	2	Ligand/Ion	GUANOSINE-5'-DIPHOSPHATE
2	HDA	2	Ligand/Ion	HADACIDIN
3	IMO	2	Ligand/Ion	6-O-PHOSPHORYL INOSINE MONOPHOSPHATE
4	MG	-1	Ligand/Ion	MAGNESIUM ION
5	NO3	2	Ligand/Ion	NITRATE ION

Asymmetric Unit (5, 5)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	ASP A:26 , GLY A:53 , IMO A:1601 , HDA A:1602 , GDP A:1603	BINDING SITE FOR RESIDUE MG A 1600
2	AC2	SOFTWARE	ASP A:118 , TYR A:189 , ASP A:190 , HOH A:776	BINDING SITE FOR RESIDUE NO3 A 1604
3	AC3	SOFTWARE	TRP A:24 , GLY A:25 , ASP A:26 , LYS A:29 , ASN A:51 , ALA A:52 , GLY A:53 , HIS A:54 , GLY A:139 , THR A:140 , THR A:141 , ARG A:155 , ALA A:231 , ASN A:232 , LEU A:236 , VAL A:246 , THR A:247 , VAL A:281 , GLY A:282 , ARG A:311 , HOH A:502 , HOH A:508 , HOH A:514 , HOH A:518 , HOH A:537 , HOH A:538 , MG A:1600 , HDA A:1602 , GDP A:1603	BINDING SITE FOR RESIDUE IMO A 1601
4	AC4	SOFTWARE	ASP A:26 , GLY A:53 , GLY A:306 , THR A:307 , THR A:308 , THR A:309 , ARG A:311 , ARG A:313 , MG A:1600 , IMO A:1601 , GDP A:1603	BINDING SITE FOR RESIDUE HDA A 1602
5	AC5	SOFTWARE	ASP A:26 , GLU A:27 , GLY A:28 , LYS A:29 , GLY A:30 , LYS A:31 , GLY A:53 , HIS A:54 , THR A:55 , LYS A:62 , THR A:307 , ARG A:313 , LYS A:339 , ASP A:341 , VAL A:342 , GLY A:425 , VAL A:426 , GLY A:427 , PRO A:428 , HOH A:524 , HOH A:549 , HOH A:551 , HOH A:579 , HOH A:638 , MG A:1600 , IMO A:1601 , HDA A:1602	BINDING SITE FOR RESIDUE GDP A 1603

(no "SS Bond" information available for 1P9B)

Asymmetric Unit

No.	Residues
1	Tyr A:243	-	Pro A:244

(no "SAP(SNP)/Variant" information available for 1P9B)

Asymmetric Unit (2, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ADENYLOSUCCIN_SYN_1	PS01266	Adenylosuccinate synthetase GTP-binding site.	PURA_PLAFA	23-30	1	A:23-30
2	ADENYLOSUCCIN_SYN_2	PS00513	Adenylosuccinate synthetase active site.	PURA_PLAFA	144-155	1	A:144-155

Biological Unit 1 (2, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ADENYLOSUCCIN_SYN_1	PS01266	Adenylosuccinate synthetase GTP-binding site.	PURA_PLAFA	23-30	2	A:23-30
2	ADENYLOSUCCIN_SYN_2	PS00513	Adenylosuccinate synthetase active site.	PURA_PLAFA	144-155	2	A:144-155

(no "Exon" information available for 1P9B)

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
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Chain A from PDB  Type:PROTEIN  Length:424
 aligned with PURA_PLAFA | Q9U8D3 from UniProtKB/Swiss-Prot  Length:442

    Alignment length:424
                                    23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423       433    
           PURA_PLAFA    14 GNVVAILGAQWGDEGKGKIIDMLSEYSDITCRFNGGANAGHTISVNDKKYALHLLPCGVLYDNNISVLGNGMVIHVKSLMEEIESVGGKLLDRLYLSNKAHILFDIHQIIDSIQETKKLKEGKQIGTTKRGIGPCYSTKASRIGIRLGTLKNFENFKNMYSKLIDHLMDLYNITEYDKEKELNLFYNYHIKLRDRIVDVISFMNTNLENNKKVLIEGANAAMLDIDFGTYPYVTSSCTTVGGVFSGLGIHHKKLNLVVGVVKSYLTRVGCGPFLTELNNDVGQYLREKGHEYGTTTKRPRRCGWLDIPMLLYVKCINSIDMINLTKLDVLSGLEEILLCVNFKNKKTGELLEKGCYPVEEEISEEYEPVYEKFSGWKEDISTCNEFDELPENAKKYILAIEKYLKTPIVWIGVGPNRKNMIVKK 437
               SCOP domains d1p9ba_ A: Adenylosuccinate synthetase, PurA                                                                                                                                                                                                                                                                                                                                                                                             SCOP domains
               CATH domains 1p9bA01 A:14-110,A:209-273 Adenylosuccinate Synthetase, subunit A, domain 1                      1p9bA02 A:111-208 Adenylosuccinate Synthetase, subunit A, domain 2                                1p9bA01 A:14-110,A:209-273                                       1p9bA03 A:274-437 Adenylosuccinate Synthetase, subunit A, domain 3                                                                                                   CATH domains
               Pfam domains --Adenylsucc_synt-1p9bA01 A:16-435                                                                                                                                                                                                                                                                                                                                                                                                    -- Pfam domains
         Sec.struct. author ..eeeeee......hhhhhhhhhhhhh.eeee........eeeee..eeeee............eeee....eehhhhhhhhhhhhh.hhhh.eeee...ee.hhhhhhhhhhhhhhhhhh.........hhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhh..eehhhhhhhhhhhh...eeee...hhhhh..............hhhhhhhh...hhhhh.eeeeeee..eee...........hhhhhhhhhhh...........eee.eehhhhhhhhhhhh..eeeeehhhhhh...eeeeeeeeee..............hhhhhh.eeeeeeeee..........hhhhhhhhhhhhhhhhhhhhh..eeeee.......eee.. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------ADENYLOS-----------------------------------------------------------------------------------------------------------------ADENYLOSUCCI------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1p9b A  14 GNVVAILGAQWGDEGKGKIIDMLSEYSDITCRFNGGANAGHTISVNDKKYALHLLPCGVLYDNNISVLGNGMVIHVKSLMEEIESVGGKLLDRLYLSNKAHILFDIHQIIDSIQETKKLKEGKQIGTTKRGIGPCYSTKASRIGIRLGTLKNFENFKNMYSKLIDHLMDLYNITEYDKEKELNLFYNYHIKLRDRIVDVISFMNTNLENNKKVLIEGANAAMLDIDFGTYPYVTSSCTTVGGVFSGLGIHHKKLNLVVGVVKSYLTRVGCGPFLTELNNDVGQYLREKGHEYGTTTKRPRRCGWLDIPMLLYVKCINSIDMINLTKLDVLSGLEEILLCVNFKNKKTGELLEKGCYPVEEEISEEYEPVYEKFSGWKEDISTCNEFDELPENAKKYILAIEKYLKTPIVWIGVGPNRKNMIVKK 437
                                    23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423       433

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

Clans(

)

Families(

)

Organisms( (-)

)

Clan: P-loop_NTPase (1112)

Family: Adenylsucc_synt (18)

Plasmodium falciparum (1)

Adenylsucc_synt-1p9bA01

A:16-435

Asymmetric Unit(hide GO term definitions)

Chain A (PURA_PLAFA | Q9U8D3)

molecular function
	GO:0005525	GTP binding	Interacting selectively and non-covalently with GTP, guanosine triphosphate.
	GO:0004019	adenylosuccinate synthase activity	Catalysis of the reaction: L-aspartate + GTP + IMP = N(6)-(1,2-dicarboxyethyl)-AMP + GDP + 3 H(+) + phosphate.
	GO:0016874	ligase activity	Catalysis of the joining of two substances, or two groups within a single molecule, with the concomitant hydrolysis of the diphosphate bond in ATP or a similar triphosphate.
	GO:0000287	magnesium ion binding	Interacting selectively and non-covalently with magnesium (Mg) ions.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	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.
biological process
	GO:0044208	'de novo' AMP biosynthetic process	The chemical reactions and pathways resulting in the formation of adenosine monophosphate (AMP) from inosine 5'-monophosphate (IMP).
	GO:0006167	AMP biosynthetic process	The chemical reactions and pathways resulting in the formation of AMP, adenosine monophosphate.
	GO:0006164	purine nucleotide biosynthetic process	The chemical reactions and pathways resulting in the formation of a purine nucleotide, a compound consisting of nucleoside (a purine base linked to a deoxyribose or ribose sugar) esterified with a phosphate group at either the 3' or 5'-hydroxyl group of the sugar.
cellular component
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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	Cis Peptide Bonds
		Tyr A:243 - Pro A:244	[ RasMol ]

Biological Unit
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	1p9b
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SS Bonds (0, 0)

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