1ECG - JenaLib

Asym.Unit - manually (Jmol Viewer)

Asymmetric Unit (Jmol Viewer)

Asym. Unit - sites (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biol. Unit 1 - sites (Jmol Viewer)

Title :   DON INACTIVATED ESCHERICHIA COLI GLUTAMINE PHOSPHORIBOSYLPYROPHOSPHATE (PRPP) AMIDOTRANSFERASE

Authors :   J. M. Krahn

Date :   23 Apr 96 (Deposition) - 08 Nov 96 (Release) - 16 Nov 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.30

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

Keywords :   Purine Biosynthesis, Transferase, Glycosyltransferase, Glutamine Amidotransferase, Transferase (Glutamine Amidotransferase) (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   J. H. Kim, J. M. Krahn, D. R. Tomchick, J. L. Smith, H. Zalkin
Structure And Function Of The Glutamine Phosphoribosylpyrophosphate Amidotransferase Glutamine Site And Communication With The Phosphoribosylpyrophosphate Site
J. Biol. Chem. V. 271 15549 1996
PubMed-ID: 8663035 | Reference-DOI: 10.1074/JBC.271.26.15549

Molecule 1 - GLUTAMINE PHOSPHORIBOSYLPYROPHOSPHATE AMIDOTRANSFERASE
	Cell Line	:	BL21
	Chains	:	A, B
	EC Number	:	2.4.2.14
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI BL21(DE3)
	Expression System Gene	:	PURF
	Expression System Plasmid	:	PT7F1
	Expression System Strain	:	BL21 (DE3)
	Expression System Taxid	:	469008
	Expression System Vector Type	:	T7
	Gene	:	PURF
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	562
	Other Details	:	T7 PHI10 PROMOTER

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

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (2, 8)

No.	Name	Count	Type	Full Name
1	ONL	2	Ligand/Ion	5-OXO-L-NORLEUCINE
2	PIN	6	Ligand/Ion	PIPERAZINE-N,N'-BIS(2-ETHANESULFONIC ACID)

Biological Unit 1 (2, 16)

No.	Name	Count	Type	Full Name
1	ONL	4	Ligand/Ion	5-OXO-L-NORLEUCINE
2	PIN	12	Ligand/Ion	PIPERAZINE-N,N'-BIS(2-ETHANESULFONIC ACID)

Asymmetric Unit (12, 12)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	CYS A:1 , TYR A:74 , THR A:76 , SER A:79 , GLN A:86 , ASN A:101 , GLY A:102 , ASN A:103 , SER A:126 , ASP A:127 , SER A:128 , HOH A:532 , HOH A:1007 , HOH A:1008	BINDING SITE FOR RESIDUE ONL A 505
02	AC2	SOFTWARE	PRO A:302 , GLU A:303 , THR A:304 , ASP A:367 , SER A:368 , VAL A:370 , ARG A:371 , GLY A:372 , THR A:373 , THR A:374 , HOH A:551 , HOH A:842	BINDING SITE FOR RESIDUE PIN A 506
03	AC3	SOFTWARE	ARG A:43 , LEU A:44 , ARG A:45 , LYS A:46 , ARG A:62 , GLU A:84 , HOH A:804 , HOH A:829	BINDING SITE FOR RESIDUE PIN A 507
04	AC4	SOFTWARE	TYR A:89 , VAL A:90 , ASN A:91 , HOH A:512	BINDING SITE FOR RESIDUE PIN A 508
05	AC5	SOFTWARE	CYS B:1 , TYR B:74 , THR B:76 , SER B:79 , GLN B:86 , ASN B:101 , GLY B:102 , ASN B:103 , SER B:126 , ASP B:127 , SER B:128 , HOH B:774 , HOH B:986	BINDING SITE FOR RESIDUE ONL B 505
06	AC6	SOFTWARE	HOH A:780 , TYR B:258 , GLU B:303 , THR B:304 , ASP B:366 , ASP B:367 , SER B:368 , ILE B:369 , VAL B:370 , ARG B:371 , GLY B:372 , THR B:373 , THR B:374 , SER B:375 , HOH B:850 , HOH B:917	BINDING SITE FOR RESIDUE PIN B 506
07	AC7	SOFTWARE	ARG B:43 , LEU B:44 , ARG B:45 , LYS B:46 , ARG B:62 , GLU B:84 , HOH B:890 , HOH B:950	BINDING SITE FOR RESIDUE PIN B 507
08	AC8	SOFTWARE	TYR B:89 , VAL B:90 , ASN B:91 , HOH B:556 , HOH B:705	BINDING SITE FOR RESIDUE PIN B 508
09	NTA	UNKNOWN	CYS A:1	NTN TYPE GLUTAMINE AMIDOTRANSFERASE CATALYTIC RESIDUE. THIS SITE BELONGS TO THE NTN SUPERFAMILY, WHICH ARE THOUGHT TO UTILIZE THE ALPHA-AMINO GROUP OF THE N-TERMINAL RESIDUE AS A PROTON DONOR , AND THE SIDE CHAIN OF THIS RESIDUE AS A NUCLEOPHILE IN CATALYSIS OF A HYDROLYTIC REACTION.
10	NTB	UNKNOWN	CYS B:1	NTN TYPE GLUTAMINE AMIDOTRANSFERASE CATALYTIC RESIDUE. THIS SITE BELONGS TO THE NTN SUPERFAMILY, WHICH ARE THOUGHT TO UTILIZE THE ALPHA-AMINO GROUP OF THE N-TERMINAL RESIDUE AS A PROTON DONOR , AND THE SIDE CHAIN OF THIS RESIDUE AS A NUCLEOPHILE IN CATALYSIS OF A HYDROLYTIC REACTION.
11	PRA	UNKNOWN	VAL A:362 , LEU A:363 , LEU A:364 , VAL A:365 , ASP A:366 , ASP A:367 , SER A:368 , ILE A:369 , VAL A:370 , ARG A:371 , GLY A:372 , THR A:373 , THR A:374	PRPP BINDING MOTIF, IDENTIFIED BY SEQUENCE SIMILARITY AMONG MEMBERS OF THE PHOSPHORIBOSYLTRANSFERASE (PRTASE) FAMILY OF ENZYMES.
12	PRB	UNKNOWN	VAL B:362 , LEU B:363 , LEU B:364 , VAL B:365 , ASP B:366 , ASP B:367 , SER B:368 , ILE B:369 , VAL B:370 , ARG B:371 , GLY B:372 , THR B:373 , THR B:374	PRPP BINDING MOTIF, IDENTIFIED BY SEQUENCE SIMILARITY AMONG MEMBERS OF THE PHOSPHORIBOSYLTRANSFERASE (PRTASE) FAMILY OF ENZYMES.

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

Asymmetric Unit

No.	Residues
1	Gln A:86	-	Pro A:87
2	Ser A:92	-	Pro A:93
3	Tyr A:145	-	Pro A:146
4	Pro A:302	-	Glu A:303
5	Gln B:86	-	Pro B:87
6	Ser B:92	-	Pro B:93
7	Tyr B:145	-	Pro B:146
8	Pro B:302	-	Glu B:303

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

Asymmetric Unit (2, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	GATASE_TYPE_2	PS51278	Glutamine amidotransferase type 2 domain profile.	PUR1_ECOLI	2-236	2	A:1-235 B:1-235
1	GATASE_TYPE_2	PS51278	Glutamine amidotransferase type 2 domain profile.	PUR1_SHIFL	2-236	2	A:1-235 B:1-235
2	PUR_PYR_PR_TRANSFER	PS00103	Purine/pyrimidine phosphoribosyl transferases signature.	PUR1_ECOLI	363-375	2	A:362-374 B:362-374
2	PUR_PYR_PR_TRANSFER	PS00103	Purine/pyrimidine phosphoribosyl transferases signature.	PUR1_SHIFL	363-375	2	A:362-374 B:362-374

Biological Unit 1 (2, 16)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	GATASE_TYPE_2	PS51278	Glutamine amidotransferase type 2 domain profile.	PUR1_ECOLI	2-236	4	A:1-235 B:1-235
1	GATASE_TYPE_2	PS51278	Glutamine amidotransferase type 2 domain profile.	PUR1_SHIFL	2-236	4	A:1-235 B:1-235
2	PUR_PYR_PR_TRANSFER	PS00103	Purine/pyrimidine phosphoribosyl transferases signature.	PUR1_ECOLI	363-375	4	A:362-374 B:362-374
2	PUR_PYR_PR_TRANSFER	PS00103	Purine/pyrimidine phosphoribosyl transferases signature.	PUR1_SHIFL	363-375	4	A:362-374 B:362-374

(no "Exon" information available for 1ECG)

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:492
 aligned with PUR1_ECOLI | P0AG16 from UniProtKB/Swiss-Prot  Length:505

    Alignment length:492
                                    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       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491  
           PUR1_ECOLI     2 CGIVGIAGVMPVNQSIYDALTVLQHRGQDAAGIITIDANNCFRLRKANGLVSDVFEARHMQRLQGNMGIGHVRYPTAGSSSASEAQPFYVNSPYGITLAHNGNLTNAHELRKKLFEEKRRHINTTSDSEILLNIFASELDNFRHYPLEADNIFAAIAATNRLIRGAYACVAMIIGHGMVAFRDPNGIRPLVLGKRDIDENRTEYMVASESVALDTLGFDFLRDVAPGEAIYITEEGQLFTRQCADNPVSNPCLFEYVYFARPDSFIDKISVYSARVNMGTKLGEKIAREWEDLDIDVVIPIPETSCDIALEIARILGKPYRQGFVKNRYVGRTFIMPGQQLRRKSVRRKLNANRAEFRDKNVLLVDDSIVRGTTSEQIIEMAREAGAKKVYLASAAPEIRFPNVYGIDMPSATELIAHGREVDEIRQIIGADGLIFQDLNDLIDAVRAENPDIQQFECSVFNGVYVTKDVDQGYLDFLDTLRNDDAKAVQRQ 493
               SCOP domains d1ecga2 A:1-249 Glutamine PRPP amidotransferase, N-terminal domain                                                                                                                                                                                       d1ecga1 A:250-492 Glutamine PRPP amidotransferase, C-terminal domain                                                                                                                                                                                SCOP domains
               CATH domains 1ecgA01 A:1-275,A:401-411,A:446-480 Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1                                                                                                                                                                                     1ecgA02 A:276-326,A:349-400,A:412-445              ----------------------1ecgA02 A:276-326,A:349-400,A:412-445               1ecgA01    1ecgA02                           1ecgA01 A:1-275,A:401-411,A:446-480------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .eeeeee.....hhhhhhhhhh.hhh...eeeeeee.....eeeeeee..hhhh..hhhhhh....eeeeeee..............eee.....eeeeeeeee..hhhhhhhhhhhh........hhhhhhhhhhhhhhh.......hhhhhhhhhhhhhh..eeeeeeeee...eeeeee........eeeeee.....eeeeee..hhhhhhh..eeeee....eeeeee....eeeee..........hhhhh.............hhhhhhhhhhhhhhhhhhh.......eeee...hhhhhhhhhhhhh.......eee.......................eee.hhh.....eeeee......hhhhhhhhhhhh.....eeeee.................hhh.......hhhhhhhh...eeee..hhhhhhhhhhh.........hhhh.........hhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                PROSITE (2) GATASE_TYPE_2  PDB: A:1-235 UniProt: 2-236                                                                                                                                                                                                 ------------------------------------------------------------------------------------------------------------------------------PUR_PYR_PR_TR---------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1ecg A   1 CGIVGIAGVMPVNQSIYDALTVLQHRGQDAAGIITIDANNCFRLRKANGLVSDVFEARHMQRLQGNMGIGHVRYPTAGSSSASEAQPFYVNSPYGITLAHNGNLTNAHELRKKLFEEKRRHINTTSDSEILLNIFASELDNFRHYPLEADNIFAAIAATNRLIRGAYACVAMIIGHGMVAFRDPNGIRPLVLGKRDIDENRTEYMVASESVALDTLGFDFLRDVAPGEAIYITEEGQLFTRQCADNPVSNPCLFEYVYFARPDSFIDKISVYSARVNMGTKLGEKIAREWEDLDIDVVIPIPETSCDIALEIARILGKPYRQGFVKNRYVGRTFIMPGQQLRRKSVRRKLNANRAEFRDKNVLLVDDSIVRGTTSEQIIEMAREAGAKKVYLASAAPEIRFPNVYGIDMPSATELIAHGREVDEIRQIIGADGLIFQDLNDLIDAVRAENPDIQQFECSVFNGVYVTKDVDQGYLDFLDTLRNDDAKAVQRQ 492
                                    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       460       470       480       490

Chain A from PDB  Type:PROTEIN  Length:492
 aligned with PUR1_SHIFL | P0AG17 from UniProtKB/Swiss-Prot  Length:505

    Alignment length:492
                                    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       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491  
           PUR1_SHIFL     2 CGIVGIAGVMPVNQSIYDALTVLQHRGQDAAGIITIDANNCFRLRKANGLVSDVFEARHMQRLQGNMGIGHVRYPTAGSSSASEAQPFYVNSPYGITLAHNGNLTNAHELRKKLFEEKRRHINTTSDSEILLNIFASELDNFRHYPLEADNIFAAIAATNRLIRGAYACVAMIIGHGMVAFRDPNGIRPLVLGKRDIDENRTEYMVASESVALDTLGFDFLRDVAPGEAIYITEEGQLFTRQCADNPVSNPCLFEYVYFARPDSFIDKISVYSARVNMGTKLGEKIAREWEDLDIDVVIPIPETSCDIALEIARILGKPYRQGFVKNRYVGRTFIMPGQQLRRKSVRRKLNANRAEFRDKNVLLVDDSIVRGTTSEQIIEMAREAGAKKVYLASAAPEIRFPNVYGIDMPSATELIAHGREVDEIRQIIGADGLIFQDLNDLIDAVRAENPDIQQFECSVFNGVYVTKDVDQGYLDFLDTLRNDDAKAVQRQ 493
               SCOP domains d1ecga2 A:1-249 Glutamine PRPP amidotransferase, N-terminal domain                                                                                                                                                                                       d1ecga1 A:250-492 Glutamine PRPP amidotransferase, C-terminal domain                                                                                                                                                                                SCOP domains
               CATH domains 1ecgA01 A:1-275,A:401-411,A:446-480 Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1                                                                                                                                                                                     1ecgA02 A:276-326,A:349-400,A:412-445              ----------------------1ecgA02 A:276-326,A:349-400,A:412-445               1ecgA01    1ecgA02                           1ecgA01 A:1-275,A:401-411,A:446-480------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .eeeeee.....hhhhhhhhhh.hhh...eeeeeee.....eeeeeee..hhhh..hhhhhh....eeeeeee..............eee.....eeeeeeeee..hhhhhhhhhhhh........hhhhhhhhhhhhhhh.......hhhhhhhhhhhhhh..eeeeeeeee...eeeeee........eeeeee.....eeeeee..hhhhhhh..eeeee....eeeeee....eeeee..........hhhhh.............hhhhhhhhhhhhhhhhhhh.......eeee...hhhhhhhhhhhhh.......eee.......................eee.hhh.....eeeee......hhhhhhhhhhhh.....eeeee.................hhh.......hhhhhhhh...eeee..hhhhhhhhhhh.........hhhh.........hhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE GATASE_TYPE_2  PDB: A:1-235 UniProt: 2-236                                                                                                                                                                                                 ------------------------------------------------------------------------------------------------------------------------------PUR_PYR_PR_TR---------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1ecg A   1 CGIVGIAGVMPVNQSIYDALTVLQHRGQDAAGIITIDANNCFRLRKANGLVSDVFEARHMQRLQGNMGIGHVRYPTAGSSSASEAQPFYVNSPYGITLAHNGNLTNAHELRKKLFEEKRRHINTTSDSEILLNIFASELDNFRHYPLEADNIFAAIAATNRLIRGAYACVAMIIGHGMVAFRDPNGIRPLVLGKRDIDENRTEYMVASESVALDTLGFDFLRDVAPGEAIYITEEGQLFTRQCADNPVSNPCLFEYVYFARPDSFIDKISVYSARVNMGTKLGEKIAREWEDLDIDVVIPIPETSCDIALEIARILGKPYRQGFVKNRYVGRTFIMPGQQLRRKSVRRKLNANRAEFRDKNVLLVDDSIVRGTTSEQIIEMAREAGAKKVYLASAAPEIRFPNVYGIDMPSATELIAHGREVDEIRQIIGADGLIFQDLNDLIDAVRAENPDIQQFECSVFNGVYVTKDVDQGYLDFLDTLRNDDAKAVQRQ 492
                                    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       460       470       480       490

Chain B from PDB  Type:PROTEIN  Length:500
 aligned with PUR1_ECOLI | P0AG16 from UniProtKB/Swiss-Prot  Length:505

    Alignment length:500
                                    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       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501
           PUR1_ECOLI     2 CGIVGIAGVMPVNQSIYDALTVLQHRGQDAAGIITIDANNCFRLRKANGLVSDVFEARHMQRLQGNMGIGHVRYPTAGSSSASEAQPFYVNSPYGITLAHNGNLTNAHELRKKLFEEKRRHINTTSDSEILLNIFASELDNFRHYPLEADNIFAAIAATNRLIRGAYACVAMIIGHGMVAFRDPNGIRPLVLGKRDIDENRTEYMVASESVALDTLGFDFLRDVAPGEAIYITEEGQLFTRQCADNPVSNPCLFEYVYFARPDSFIDKISVYSARVNMGTKLGEKIAREWEDLDIDVVIPIPETSCDIALEIARILGKPYRQGFVKNRYVGRTFIMPGQQLRRKSVRRKLNANRAEFRDKNVLLVDDSIVRGTTSEQIIEMAREAGAKKVYLASAAPEIRFPNVYGIDMPSATELIAHGREVDEIRQIIGADGLIFQDLNDLIDAVRAENPDIQQFECSVFNGVYVTKDVDQGYLDFLDTLRNDDAKAVQRQNEVENLEM 501
               SCOP domains d1ecgb2 B:1-249 Glutamine PRPP amidotransferase, N-terminal domain                                                                                                                                                                                       d1ecgb1 B:250-500 Glutamine PRPP amidotransferase, C-terminal domain                                                                                                                                                                                        SCOP domains
               CATH domains 1ecgB01 B:1-275,B:401-411,B:446-480 Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1                                                                                                                                                                                     1ecgB02 B:276-326,B:349-400,B:412-445              ----------------------1ecgB02 B:276-326,B:349-400,B:412-445               1ecgB01    1ecgB02                           1ecgB01 B:1-275,B:401-411,B:446-480-------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeeeee.....hhhhhhhhhhhhhh...eeeeeee.....eeeeeee..hhhh..hhhhhh....eeeeeee..............eee.....eeeeeeeee..hhhhhhhhhhhh........hhhhhhhhhhhhhhh.......hhhhhhhhhhhhhh..eeeeeeeee...eeeeee........eeeeeeee..eeeeeee..hhhhhh...eeeee....eeeeee....eeeee..........hhhhh.............hhhhhhhhhhhhhhhhhhh.......eeee.....hhhhhhhhhhh.......eee..................hhhhheee.hhh.....eeeee......hhhhhhhhhhhh.....eeeee.................hhh.......hhhhhhhh...eeee..hhhhhhhhhhh.........hhhh.........hhhhhhhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) GATASE_TYPE_2  PDB: B:1-235 UniProt: 2-236                                                                                                                                                                                                 ------------------------------------------------------------------------------------------------------------------------------PUR_PYR_PR_TR------------------------------------------------------------------------------------------------------------------------------ PROSITE (2)
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1ecg B   1 CGIVGIAGVMPVNQSIYDALTVLQHRGQDAAGIITIDANNCFRLRKANGLVSDVFEARHMQRLQGNMGIGHVRYPTAGSSSASEAQPFYVNSPYGITLAHNGNLTNAHELRKKLFEEKRRHINTTSDSEILLNIFASELDNFRHYPLEADNIFAAIAATNRLIRGAYACVAMIIGHGMVAFRDPNGIRPLVLGKRDIDENRTEYMVASESVALDTLGFDFLRDVAPGEAIYITEEGQLFTRQCADNPVSNPCLFEYVYFARPDSFIDKISVYSARVNMGTKLGEKIAREWEDLDIDVVIPIPETSCDIALEIARILGKPYRQGFVKNRYVGRTFIMPGQQLRRKSVRRKLNANRAEFRDKNVLLVDDSIVRGTTSEQIIEMAREAGAKKVYLASAAPEIRFPNVYGIDMPSATELIAHGREVDEIRQIIGADGLIFQDLNDLIDAVRAENPDIQQFECSVFNGVYVTKDVDQGYLDFLDTLRNDDAKAVQRQNEVENLEM 500
                                    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       460       470       480       490       500

Chain B from PDB  Type:PROTEIN  Length:500
 aligned with PUR1_SHIFL | P0AG17 from UniProtKB/Swiss-Prot  Length:505

    Alignment length:500
                                    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       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501
           PUR1_SHIFL     2 CGIVGIAGVMPVNQSIYDALTVLQHRGQDAAGIITIDANNCFRLRKANGLVSDVFEARHMQRLQGNMGIGHVRYPTAGSSSASEAQPFYVNSPYGITLAHNGNLTNAHELRKKLFEEKRRHINTTSDSEILLNIFASELDNFRHYPLEADNIFAAIAATNRLIRGAYACVAMIIGHGMVAFRDPNGIRPLVLGKRDIDENRTEYMVASESVALDTLGFDFLRDVAPGEAIYITEEGQLFTRQCADNPVSNPCLFEYVYFARPDSFIDKISVYSARVNMGTKLGEKIAREWEDLDIDVVIPIPETSCDIALEIARILGKPYRQGFVKNRYVGRTFIMPGQQLRRKSVRRKLNANRAEFRDKNVLLVDDSIVRGTTSEQIIEMAREAGAKKVYLASAAPEIRFPNVYGIDMPSATELIAHGREVDEIRQIIGADGLIFQDLNDLIDAVRAENPDIQQFECSVFNGVYVTKDVDQGYLDFLDTLRNDDAKAVQRQNEVENLEM 501
               SCOP domains d1ecgb2 B:1-249 Glutamine PRPP amidotransferase, N-terminal domain                                                                                                                                                                                       d1ecgb1 B:250-500 Glutamine PRPP amidotransferase, C-terminal domain                                                                                                                                                                                        SCOP domains
               CATH domains 1ecgB01 B:1-275,B:401-411,B:446-480 Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1                                                                                                                                                                                     1ecgB02 B:276-326,B:349-400,B:412-445              ----------------------1ecgB02 B:276-326,B:349-400,B:412-445               1ecgB01    1ecgB02                           1ecgB01 B:1-275,B:401-411,B:446-480-------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeeeee.....hhhhhhhhhhhhhh...eeeeeee.....eeeeeee..hhhh..hhhhhh....eeeeeee..............eee.....eeeeeeeee..hhhhhhhhhhhh........hhhhhhhhhhhhhhh.......hhhhhhhhhhhhhh..eeeeeeeee...eeeeee........eeeeeeee..eeeeeee..hhhhhh...eeeee....eeeeee....eeeee..........hhhhh.............hhhhhhhhhhhhhhhhhhh.......eeee.....hhhhhhhhhhh.......eee..................hhhhheee.hhh.....eeeee......hhhhhhhhhhhh.....eeeee.................hhh.......hhhhhhhh...eeee..hhhhhhhhhhh.........hhhh.........hhhhhhhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE GATASE_TYPE_2  PDB: B:1-235 UniProt: 2-236                                                                                                                                                                                                 ------------------------------------------------------------------------------------------------------------------------------PUR_PYR_PR_TR------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1ecg B   1 CGIVGIAGVMPVNQSIYDALTVLQHRGQDAAGIITIDANNCFRLRKANGLVSDVFEARHMQRLQGNMGIGHVRYPTAGSSSASEAQPFYVNSPYGITLAHNGNLTNAHELRKKLFEEKRRHINTTSDSEILLNIFASELDNFRHYPLEADNIFAAIAATNRLIRGAYACVAMIIGHGMVAFRDPNGIRPLVLGKRDIDENRTEYMVASESVALDTLGFDFLRDVAPGEAIYITEEGQLFTRQCADNPVSNPCLFEYVYFARPDSFIDKISVYSARVNMGTKLGEKIAREWEDLDIDVVIPIPETSCDIALEIARILGKPYRQGFVKNRYVGRTFIMPGQQLRRKSVRRKLNANRAEFRDKNVLLVDDSIVRGTTSEQIIEMAREAGAKKVYLASAAPEIRFPNVYGIDMPSATELIAHGREVDEIRQIIGADGLIFQDLNDLIDAVRAENPDIQQFECSVFNGVYVTKDVDQGYLDFLDTLRNDDAKAVQRQNEVENLEM 500
                                    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       460       470       480       490       500

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(

)

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)

Escherichia coli. Organism_taxid: 562. Cell_line: bl21. (2)

1a	1ecgA02	A:276-326,A:349-400,A:412-445
1b	1ecgB02	B:276-326,B:349-400,B:412-445

Architecture: 4-Layer Sandwich (459)

Topology: Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1 (128)

Homologous Superfamily: Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1 (124)

Escherichia coli. Organism_taxid: 562. Cell_line: bl21. (2)

2a	1ecgA01	A:1-275,A:401-411,A:446-480
2b	1ecgB01	B:1-275,B:401-411,B:446-480

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

Asymmetric Unit(hide GO term definitions)

Chain A,B (PUR1_SHIFL | P0AG17)

molecular function
	GO:0004044	amidophosphoribosyltransferase activity	Catalysis of the reaction: 5-phospho-beta-D-ribosylamine + L-glutamate + diphosphate = 5-phospho-alpha-D-ribose 1-diphosphate + L-glutamine + H(2)O.
	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: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.
	GO:0016757	transferase activity, transferring glycosyl groups	Catalysis of the transfer of a glycosyl group from one compound (donor) to another (acceptor).
biological process
	GO:0006189	'de novo' IMP biosynthetic process	The chemical reactions and pathways resulting in the formation of IMP, inosine monophosphate, by the stepwise assembly of a purine ring on ribose 5-phosphate.
	GO:0006541	glutamine metabolic process	The chemical reactions and pathways involving glutamine, 2-amino-4-carbamoylbutanoic acid.
	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:0009113	purine nucleobase biosynthetic process	The chemical reactions and pathways resulting in the formation of purine nucleobases, one of the two classes of nitrogen-containing ring compounds found in DNA and RNA, which include adenine and guanine.
	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.

Chain A,B (PUR1_ECOLI | P0AG16)

molecular function
	GO:0004044	amidophosphoribosyltransferase activity	Catalysis of the reaction: 5-phospho-beta-D-ribosylamine + L-glutamate + diphosphate = 5-phospho-alpha-D-ribose 1-diphosphate + L-glutamine + H(2)O.
	GO:0042802	identical protein binding	Interacting selectively and non-covalently with an identical protein or proteins.
	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: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.
	GO:0016757	transferase activity, transferring glycosyl groups	Catalysis of the transfer of a glycosyl group from one compound (donor) to another (acceptor).
biological process
	GO:0006189	'de novo' IMP biosynthetic process	The chemical reactions and pathways resulting in the formation of IMP, inosine monophosphate, by the stepwise assembly of a purine ring on ribose 5-phosphate.
	GO:0006541	glutamine metabolic process	The chemical reactions and pathways involving glutamine, 2-amino-4-carbamoylbutanoic acid.
	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:0009113	purine nucleobase biosynthetic process	The chemical reactions and pathways resulting in the formation of purine nucleobases, one of the two classes of nitrogen-containing ring compounds found in DNA and RNA, which include adenine and guanine.
	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.
	GO:0005829	cytosol	The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

Asymmetric Unit
	Complete Structure
		Jena3D(integrated viewing of ligand, site, SAP, PROSITE, SCOP information)
		WebMol \| AstexViewer[tm]@PDBe (Java Applets, require no local installation except for Java; loading may be slow)
		STRAP (Java WebStart application, automatic local installation, requires Java; full application with system access!)
		RasMol (require local installation)
		Molscript (VRML) (requires installation of a VRML viewer; select preferred view via VRML and generate a mono or stereo PDF format file)

	Ligands, Modified Residues, Ions
		ONL	[ RasMol \| Jena3D ]	+environment [ RasMol \| Jena3D ]
		PIN	[ RasMol \| Jena3D ]	+environment [ RasMol \| Jena3D ]

	Sites
		AC1	[ RasMol ]	+environment [ RasMol ]
		AC2	[ RasMol ]	+environment [ RasMol ]
		AC3	[ RasMol ]	+environment [ RasMol ]
		AC4	[ RasMol ]	+environment [ RasMol ]
		AC5	[ RasMol ]	+environment [ RasMol ]
		AC6	[ RasMol ]	+environment [ RasMol ]
		AC7	[ RasMol ]	+environment [ RasMol ]
		AC8	[ RasMol ]	+environment [ RasMol ]
		NTA	[ RasMol ]	+environment [ RasMol ]
		NTB	[ RasMol ]	+environment [ RasMol ]
		PRA	[ RasMol ]	+environment [ RasMol ]
		PRB	[ RasMol ]	+environment [ RasMol ]

	Cis Peptide Bonds
		Gln A:86 - Pro A:87	[ RasMol ]
		Gln B:86 - Pro B:87	[ RasMol ]
		Pro A:302 - Glu A:303	[ RasMol ]
		Pro B:302 - Glu B:303	[ RasMol ]
		Ser A:92 - Pro A:93	[ RasMol ]
		Ser B:92 - Pro B:93	[ RasMol ]
		Tyr A:145 - Pro A:146	[ RasMol ]
		Tyr B:145 - Pro B:146	[ RasMol ]

Biological Unit
	Complete Structure
		Biological Unit 1	[ Jena3D ]

Jmol
	protein: cartoon or spacefill or dots and stick; nucleic acid: cartoon and stick; ligands: spacefill; active site: stick [ Asym. Unit PNG format \| Asym. Unit - sites PNG format \| Biol. Unit 1 PNG format \| Biol. Unit 1 - sites PNG format ](automatic orientation, automatically generated)
Molscript
	protein, nucleic acid: cartoon; ligands: spacefill; active site: ball and stick [ mono PDF format \| stereo PDF format ](default orientation, automatically generated)
Molmol
	protein, nucleic acid: cartoon; ligands: spacefill; active site: sticks [ mono GIF format \| stereo GIF format ] (automatic, in case of more than 1 NMR structures only model 1 is shown)
Weblab
	protein: ribbon, secondary structure, active site; ligand: spacefill [ mono GIF format \| stereo GIF format ]
	protein: ribbon, secondary structure, active site; ligand: spacefill; sequence-specific coloring [ mono GIF format \| stereo GIF format ]

Access by PDB/NDB ID
	1ecg
		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
		Structural Neighbours	:	CE \| VAST
		Structure Classification	:	CATH \| Dali \| SCOP
		Validation and Original Data	:	BMRB Data View \| BMRB Restraints Grid \| EDS \| PROCHECK \| RECOORD \| WHAT_CHECK

Access by UniProt ID/Accession number
	PUR1_ECOLI \| P0AG16
		Comparative Protein Structure Models	:	ModBase
		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/SwissProt
	PUR1_SHIFL \| P0AG17
		Comparative Protein Structure Models	:	ModBase
		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/SwissProt

Access by Enzyme Classificator (EC Number)
	2.4.2.14
		General Enzyme Information	:	BRENDA \| EC-PDB \| Enzyme \| IntEnz
		Pathway	:	KEGG \| MetaCyc

Access by Disease Identifier (MIM ID)
	(no 'MIM ID' available)
		Disease Information	:	OMIM

Access by GenAge ID
	(no 'GenAge ID' available)
		Age Related Information	:	GenAge

Access by PDB/NDB ID
		Domain Information	:	XDom
		Interatomic Contacts of Structural Units	:	CSU
		Ligand-protein Contacts	:	LPC
		Protein Cavities	:	castP
		Sequence and Secondary Structure	:	PDBCartoon
		Structure Alignment	:	STRAP(Java WebStart application, automatic local installation, requires Java; full application with system access!)
		Structure and Sequence Browser	:	STING

Access by UniProt ID/Accession number
	PUR1_ECOLI \| P0AG16
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)
	PUR1_SHIFL \| P0AG17
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

UniProtKB/Swiss-Prot
	PUR1_ECOLI \| P0AG16	:	1ecb 1ecc 1ecf 1ecj
	PUR1_SHIFL \| P0AG17	:	1ecb 1ecc 1ecf 1ecj

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

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 8)

Sites (12, 12)

SS Bonds (0, 0)

Cis Peptide Bonds (8, 8)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (2, 4)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (2, 4)

CATH Domains (2, 4)

Pfam Domains (0, 0)

Gene Ontology (13, 23)

Visualization

Interactive Views

Still Images

Databases and Analysis Tools

Databases

Analysis Tools

Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File