1K9S - JenaLib

Asym./Biol. Unit - manually (Jmol Viewer)

Asym./Biol. Unit (Jmol Viewer)

Asym./Biol. Unit - sites (Jmol Viewer)

Title :   PURINE NUCLEOSIDE PHOSPHORYLASE FROM E. COLI IN COMPLEX WITH FORMYCIN A DERIVATIVE AND PHOSPHATE

Authors :   G. Koellner, A. Bzowska, B. Wielgus-Kutrowska, M. Luic, T. Steiner, W. Saenger, J. Stepinski

Date :   30 Oct 01 (Deposition) - 28 Nov 01 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.00

Chains :   Asym./Biol. Unit : A,B,C,D,E,F

Keywords :   Glycosyltransferase, Purine Nucleoside Phosphorylase, Transferase, E. Coli (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   G. Koellner, A. Bzowska, B. Wielgus-Kutrowska, M. Luic, T. Steiner, W. Saenger, J. Stepinski
Open And Closed Conformation Of The E. Coli Purine Nucleoside Phosphorylase Active Center And Implications For The Catalytic Mechanism.
J. Mol. Biol. V. 315 351 2002
PubMed-ID: 11786017 | Reference-DOI: 10.1006/JMBI.2001.5211
(for further references see the PDB file header)

Molecule 1 - PURINE NUCLEOSIDE PHOSPHORYLASE
	Chains	:	A, B, C, D, E, F
	EC Number	:	2.4.2.1
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	562

		1	2	3	4	5	6
Asymmetric/Biological Unit	:	A	B	C	D	E	F

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (3, 12)

No.	Name	Count	Type	Full Name
1	FM1	3	Ligand/Ion	2-HYDROXYMETHYL-5-(7-METHYLAMINO-3H-PYRAZOLO[4,3-D]PYRIMIDIN-3-YL)-TETRAHYDRO-FURAN-3,4-DIOL
2	FM2	3	Ligand/Ion	2-(7-AMINO-6-METHYL-3H-PYRAZOLO[4,3-D]PYRIMIDIN-3-YL)-5-HYDROXYMETHYL-TETRAHYDRO-FURAN-3,4-DIOL
3	PO4	6	Ligand/Ion	PHOSPHATE ION

Asymmetric Unit (12, 12)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	GLY A:20 , ARG A:24 , ARG A:87 , GLY A:89 , SER A:90 , FM2 A:9901 , ARG D:43	BINDING SITE FOR RESIDUE PO4 A 9902
02	AC2	SOFTWARE	MET A:64 , ARG A:87 , SER A:90 , CYS A:91 , GLY A:92 , PHE A:159 , VAL A:178 , GLU A:179 , MET A:180 , GLU A:181 , SER A:203 , ASP A:204 , HOH A:1022 , HOH A:1082 , PO4 A:9902 , HIS D:4 , ARG D:43	BINDING SITE FOR RESIDUE FM2 A 9901
03	AC3	SOFTWARE	GLY B:20 , ARG B:24 , ARG B:87 , GLY B:89 , SER B:90 , FM2 B:9903 , ARG E:43	BINDING SITE FOR RESIDUE PO4 B 9904
04	AC4	SOFTWARE	MET B:64 , ARG B:87 , SER B:90 , CYS B:91 , GLY B:92 , PHE B:159 , VAL B:178 , GLU B:179 , MET B:180 , GLU B:181 , SER B:203 , ASP B:204 , HOH B:1022 , HOH B:1109 , PO4 B:9904 , HIS E:4 , ARG E:43	BINDING SITE FOR RESIDUE FM2 B 9903
05	AC5	SOFTWARE	GLY C:20 , ARG C:24 , ARG C:87 , GLY C:89 , SER C:90 , FM2 C:9905 , ARG F:43	BINDING SITE FOR RESIDUE PO4 C 9906
06	AC6	SOFTWARE	MET C:64 , ARG C:87 , SER C:90 , CYS C:91 , GLY C:92 , PHE C:159 , VAL C:178 , GLU C:179 , MET C:180 , GLU C:181 , SER C:203 , ASP C:204 , HOH C:1026 , HOH C:1079 , PO4 C:9906 , HIS F:4 , ARG F:43	BINDING SITE FOR RESIDUE FM2 C 9905
07	AC7	SOFTWARE	ARG A:43 , PRO D:19 , GLY D:20 , ARG D:24 , ARG D:87 , GLY D:89 , SER D:90 , FM1 D:9907	BINDING SITE FOR RESIDUE PO4 D 9908
08	AC8	SOFTWARE	HIS A:4 , ARG A:43 , ARG D:87 , SER D:90 , CYS D:91 , GLY D:92 , PHE D:159 , VAL D:178 , GLU D:179 , MET D:180 , GLU D:181 , ASP D:204 , ILE D:206 , HOH D:1070 , HOH D:1098 , PO4 D:9908 , HOH D:9927	BINDING SITE FOR RESIDUE FM1 D 9907
09	AC9	SOFTWARE	ARG B:43 , GLY E:20 , ARG E:24 , ARG E:87 , GLY E:89 , SER E:90 , FM1 E:9909	BINDING SITE FOR RESIDUE PO4 E 9910
10	BC1	SOFTWARE	HIS B:4 , ARG B:43 , MET E:64 , ARG E:87 , SER E:90 , CYS E:91 , GLY E:92 , PHE E:159 , VAL E:178 , GLU E:179 , MET E:180 , GLU E:181 , ASP E:204 , ILE E:206 , HOH E:1059 , PO4 E:9910 , HOH E:9919	BINDING SITE FOR RESIDUE FM1 E 9909
11	BC2	SOFTWARE	ARG C:43 , PRO F:19 , GLY F:20 , ARG F:24 , ARG F:87 , GLY F:89 , SER F:90 , FM1 F:9911	BINDING SITE FOR RESIDUE PO4 F 9912
12	BC3	SOFTWARE	HIS C:4 , ARG C:43 , MET F:64 , ARG F:87 , SER F:90 , CYS F:91 , GLY F:92 , PHE F:159 , VAL F:178 , GLU F:179 , MET F:180 , GLU F:181 , SER F:203 , ASP F:204 , HOH F:1036 , HOH F:1063 , HOH F:1064 , PO4 F:9912	BINDING SITE FOR RESIDUE FM1 F 9911

(no "SS Bond" information available for 1K9S)

(no "Cis Peptide Bond" information available for 1K9S)

(no "SAP(SNP)/Variant" information available for 1K9S)

Asymmetric/Biological Unit (1, 6)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	PNP_UDP_1	PS01232	Purine and other phosphorylases family 1 signature.	DEOD_ECOLI	62-77	6	A:61-76 B:61-76 C:61-76 D:61-76 E:61-76 F:61-76

(no "Exon" information available for 1K9S)

Asymmetric/Biological 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:237
 aligned with DEOD_ECOLI | P0ABP8 from UniProtKB/Swiss-Prot  Length:239

    Alignment length:237
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       
           DEOD_ECOLI     2 ATPHINAEMGDFADVVLMPGDPLRAKYIAETFLEDAREVNNVRGMLGFTGTYKGRKISVMGHGMGIPSCSIYTKELITDFGVKKIIRVGSCGAVLPHVKLRDVVIGMGACTDSKVNRIRFKDHDFAAIADFDMVRNAVDAAKALGIDARVGNLFSADLFYSPDGEMFDVMEKYGILGVEMEAAGIYGVAAEFGAKALTICTVSDHIRTHEQTTAAERQTTFNDMIKIALESVLLGDK 238
               SCOP domains d1k9sa_ A: Purine nucleoside phosphorylase, PNP                                                                                                                                                                                               SCOP domains
               CATH domains 1k9sA00 A:1-237  [code=3.40.50.1580, no name defined]                                                                                                                                                                                         CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............eeee..hhhhhhhhhhhhheeeeeeehhhhh.eeeeee..eeeeee....hhhhhhhhhhhhhhhhh..eeeeeeeeee.........eeeeeeeee..hhhhhhh......ee.hhhhhhhhhhhhhhh...eeeeeeee........hhhhhhhhhh...eee.hhhhhhhhhhhhh.eeeeeeeeeee.......hhhhhhhh.hhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------PNP_UDP_1       ----------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1k9s A   1 ATPHINAEMGDFADVVLMPGDPLRAKYIAETFLEDAREVNNVRGMLGFTGTYKGRKISVMGHGMGIPSCSIYTKELITDFGVKKIIRVGSCGAVLPHVKLRDVVIGMGACTDSKVNRIRFKDHDFAAIADFDMVRNAVDAAKALGIDARVGNLFSADLFYSPDGEMFDVMEKYGILGVEMEAAGIYGVAAEFGAKALTICTVSDHIRTHEQTTAAERQTTFNDMIKIALESVLLGDK 237
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230

Chain B from PDB  Type:PROTEIN  Length:237
 aligned with DEOD_ECOLI | P0ABP8 from UniProtKB/Swiss-Prot  Length:239

    Alignment length:237
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       
           DEOD_ECOLI     2 ATPHINAEMGDFADVVLMPGDPLRAKYIAETFLEDAREVNNVRGMLGFTGTYKGRKISVMGHGMGIPSCSIYTKELITDFGVKKIIRVGSCGAVLPHVKLRDVVIGMGACTDSKVNRIRFKDHDFAAIADFDMVRNAVDAAKALGIDARVGNLFSADLFYSPDGEMFDVMEKYGILGVEMEAAGIYGVAAEFGAKALTICTVSDHIRTHEQTTAAERQTTFNDMIKIALESVLLGDK 238
               SCOP domains d1k9sb_ B: Purine nucleoside phosphorylase, PNP                                                                                                                                                                                               SCOP domains
               CATH domains 1k9sB00 B:1-237  [code=3.40.50.1580, no name defined]                                                                                                                                                                                         CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............eeee..hhhhhhhhhhhhheeeeeeehhhhh.eeeeee..eeeeee....hhhhhhhhhhhhhhhhh..eeeeeeeeee.........eeeeeeeee..hhhhhhh......ee.hhhhhhhhhhhhhhhh..eeeeeeee.........hhhhhhhhh...eee.hhhhhhhhhhhhh.eeeeeeeeeee.......hhhhhhhh.hhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------PNP_UDP_1       ----------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1k9s B   1 ATPHINAEMGDFADVVLMPGDPLRAKYIAETFLEDAREVNNVRGMLGFTGTYKGRKISVMGHGMGIPSCSIYTKELITDFGVKKIIRVGSCGAVLPHVKLRDVVIGMGACTDSKVNRIRFKDHDFAAIADFDMVRNAVDAAKALGIDARVGNLFSADLFYSPDGEMFDVMEKYGILGVEMEAAGIYGVAAEFGAKALTICTVSDHIRTHEQTTAAERQTTFNDMIKIALESVLLGDK 237
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230

Chain C from PDB  Type:PROTEIN  Length:237
 aligned with DEOD_ECOLI | P0ABP8 from UniProtKB/Swiss-Prot  Length:239

    Alignment length:237
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       
           DEOD_ECOLI     2 ATPHINAEMGDFADVVLMPGDPLRAKYIAETFLEDAREVNNVRGMLGFTGTYKGRKISVMGHGMGIPSCSIYTKELITDFGVKKIIRVGSCGAVLPHVKLRDVVIGMGACTDSKVNRIRFKDHDFAAIADFDMVRNAVDAAKALGIDARVGNLFSADLFYSPDGEMFDVMEKYGILGVEMEAAGIYGVAAEFGAKALTICTVSDHIRTHEQTTAAERQTTFNDMIKIALESVLLGDK 238
               SCOP domains d1k9sc_ C: Purine nucleoside phosphorylase, PNP                                                                                                                                                                                               SCOP domains
               CATH domains 1k9sC00 C:1-237  [code=3.40.50.1580, no name defined]                                                                                                                                                                                         CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............eeee..hhhhhhhhhhhhheeeeeeehhhhh.eeeeee..eeeeee....hhhhhhhhhhhhhhhhh..eeeeeeeeee.........eeeeeeeee..hhhhhhh......ee.hhhhhhhhhhhhhhhh..eeeeeeee........hhhhhhhhhh...eee.hhhhhhhhhhhhh.eeeeeeeeeee.......hhhhhhhh.hhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------PNP_UDP_1       ----------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1k9s C   1 ATPHINAEMGDFADVVLMPGDPLRAKYIAETFLEDAREVNNVRGMLGFTGTYKGRKISVMGHGMGIPSCSIYTKELITDFGVKKIIRVGSCGAVLPHVKLRDVVIGMGACTDSKVNRIRFKDHDFAAIADFDMVRNAVDAAKALGIDARVGNLFSADLFYSPDGEMFDVMEKYGILGVEMEAAGIYGVAAEFGAKALTICTVSDHIRTHEQTTAAERQTTFNDMIKIALESVLLGDK 237
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230

Chain D from PDB  Type:PROTEIN  Length:237
 aligned with DEOD_ECOLI | P0ABP8 from UniProtKB/Swiss-Prot  Length:239

    Alignment length:237
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       
           DEOD_ECOLI     2 ATPHINAEMGDFADVVLMPGDPLRAKYIAETFLEDAREVNNVRGMLGFTGTYKGRKISVMGHGMGIPSCSIYTKELITDFGVKKIIRVGSCGAVLPHVKLRDVVIGMGACTDSKVNRIRFKDHDFAAIADFDMVRNAVDAAKALGIDARVGNLFSADLFYSPDGEMFDVMEKYGILGVEMEAAGIYGVAAEFGAKALTICTVSDHIRTHEQTTAAERQTTFNDMIKIALESVLLGDK 238
               SCOP domains d1k9sd_ D: Purine nucleoside phosphorylase, PNP                                                                                                                                                                                               SCOP domains
               CATH domains 1k9sD00 D:1-237  [code=3.40.50.1580, no name defined]                                                                                                                                                                                         CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............eeee..hhhhhhhhhhhhheeeeeeehhhhh.eeeeee..eeeeee....hhhhhhhhhhhhhhhhh..eeeeeeeeee.........eeeeeeeee..hhhhhhh......ee.hhhhhhhhhhhhhhh...eeeeeeee.........hhhhhhhhh...eee.hhhhhhhhhhhhh.eeeeeeeeeee.......hhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------PNP_UDP_1       ----------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1k9s D   1 ATPHINAEMGDFADVVLMPGDPLRAKYIAETFLEDAREVNNVRGMLGFTGTYKGRKISVMGHGMGIPSCSIYTKELITDFGVKKIIRVGSCGAVLPHVKLRDVVIGMGACTDSKVNRIRFKDHDFAAIADFDMVRNAVDAAKALGIDARVGNLFSADLFYSPDGEMFDVMEKYGILGVEMEAAGIYGVAAEFGAKALTICTVSDHIRTHEQTTAAERQTTFNDMIKIALESVLLGDK 237
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230

Chain E from PDB  Type:PROTEIN  Length:237
 aligned with DEOD_ECOLI | P0ABP8 from UniProtKB/Swiss-Prot  Length:239

    Alignment length:237
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       
           DEOD_ECOLI     2 ATPHINAEMGDFADVVLMPGDPLRAKYIAETFLEDAREVNNVRGMLGFTGTYKGRKISVMGHGMGIPSCSIYTKELITDFGVKKIIRVGSCGAVLPHVKLRDVVIGMGACTDSKVNRIRFKDHDFAAIADFDMVRNAVDAAKALGIDARVGNLFSADLFYSPDGEMFDVMEKYGILGVEMEAAGIYGVAAEFGAKALTICTVSDHIRTHEQTTAAERQTTFNDMIKIALESVLLGDK 238
               SCOP domains d1k9se_ E: Purine nucleoside phosphorylase, PNP                                                                                                                                                                                               SCOP domains
               CATH domains 1k9sE00 E:1-237  [code=3.40.50.1580, no name defined]                                                                                                                                                                                         CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............eeee..hhhhhhhhhhhhheeeeeeehhhhh.eeeeee..eeeeee....hhhhhhhhhhhhhhhhh..eeeeeeeeee.........eeeeeeeee..hhhhhhh......ee.hhhhhhhhhhhhhhh....eeeeeee.........hhhhhhhhh...eee.hhhhhhhhhhhhh.eeeeeeeeeee.......hhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------PNP_UDP_1       ----------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1k9s E   1 ATPHINAEMGDFADVVLMPGDPLRAKYIAETFLEDAREVNNVRGMLGFTGTYKGRKISVMGHGMGIPSCSIYTKELITDFGVKKIIRVGSCGAVLPHVKLRDVVIGMGACTDSKVNRIRFKDHDFAAIADFDMVRNAVDAAKALGIDARVGNLFSADLFYSPDGEMFDVMEKYGILGVEMEAAGIYGVAAEFGAKALTICTVSDHIRTHEQTTAAERQTTFNDMIKIALESVLLGDK 237
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230

Chain F from PDB  Type:PROTEIN  Length:237
 aligned with DEOD_ECOLI | P0ABP8 from UniProtKB/Swiss-Prot  Length:239

    Alignment length:237
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       
           DEOD_ECOLI     2 ATPHINAEMGDFADVVLMPGDPLRAKYIAETFLEDAREVNNVRGMLGFTGTYKGRKISVMGHGMGIPSCSIYTKELITDFGVKKIIRVGSCGAVLPHVKLRDVVIGMGACTDSKVNRIRFKDHDFAAIADFDMVRNAVDAAKALGIDARVGNLFSADLFYSPDGEMFDVMEKYGILGVEMEAAGIYGVAAEFGAKALTICTVSDHIRTHEQTTAAERQTTFNDMIKIALESVLLGDK 238
               SCOP domains d1k9sf_ F: Purine nucleoside phosphorylase, PNP                                                                                                                                                                                               SCOP domains
               CATH domains 1k9sF00 F:1-237  [code=3.40.50.1580, no name defined]                                                                                                                                                                                         CATH domains
           Pfam domains (1) -------------PNP_UDP_1-1k9sF01 F:14-233                                                                                                                                                                                                  ---- Pfam domains (1)
           Pfam domains (2) -------------PNP_UDP_1-1k9sF02 F:14-233                                                                                                                                                                                                  ---- Pfam domains (2)
           Pfam domains (3) -------------PNP_UDP_1-1k9sF03 F:14-233                                                                                                                                                                                                  ---- Pfam domains (3)
           Pfam domains (4) -------------PNP_UDP_1-1k9sF04 F:14-233                                                                                                                                                                                                  ---- Pfam domains (4)
           Pfam domains (5) -------------PNP_UDP_1-1k9sF05 F:14-233                                                                                                                                                                                                  ---- Pfam domains (5)
           Pfam domains (6) -------------PNP_UDP_1-1k9sF06 F:14-233                                                                                                                                                                                                  ---- Pfam domains (6)
         Sec.struct. author ..............eeee..hhhhhhhhhhhhheeeeeeehhhhh.eeeeee..eeeeee....hhhhhhhhhhhhhhhhh..eeeeeeeeee.........eeeeeeeee..hhhhhhh......ee.hhhhhhhhhhhhhhh...eeeeeeee........hhhhhhhhhh...eee.hhhhhhhhhhhhh.eeeeeeeeeee.......hhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------PNP_UDP_1       ----------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1k9s F   1 ATPHINAEMGDFADVVLMPGDPLRAKYIAETFLEDAREVNNVRGMLGFTGTYKGRKISVMGHGMGIPSCSIYTKELITDFGVKKIIRVGSCGAVLPHVKLRDVVIGMGACTDSKVNRIRFKDHDFAAIADFDMVRNAVDAAKALGIDARVGNLFSADLFYSPDGEMFDVMEKYGILGVEMEAAGIYGVAAEFGAKALTICTVSDHIRTHEQTTAAERQTTFNDMIKIALESVLLGDK 237
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230

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/Biological Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: Alpha and beta proteins (a/b) (23833)

Fold: Phosphorylase/hydrolase-like (558)

Superfamily: Purine and uridine phosphorylases (283)

Family: Purine and uridine phosphorylases (224)

Protein domain: Purine nucleoside phosphorylase, PNP (93)

Escherichia coli [TaxId: 562] (24)

1a	d1k9sa_	A:
1b	d1k9sb_	B:
1c	d1k9sc_	C:
1d	d1k9sd_	D:
1e	d1k9se_	E:
1f	d1k9sf_	F:

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 3-Layer(aba) Sandwich (12045)

Topology: Rossmann fold (7312)

Homologous Superfamily: [code=3.40.50.1580, no name defined] (194)

Escherichia coli. Organism_taxid: 562 (2)

1a	1k9sA00	A:1-237
1b	1k9sB00	B:1-237
1c	1k9sC00	C:1-237
1d	1k9sD00	D:1-237
1e	1k9sE00	E:1-237
1f	1k9sF00	F:1-237

Asymmetric/Biological Unit

Clans(

)

Families(

)

Organisms( (-)

)

Clan: PUP (121)

Family: PNP_UDP_1 (121)

Escherichia coli (strain K12) (27)

1a	PNP_UDP_1-1k9sF01	F:14-233
1b	PNP_UDP_1-1k9sF02	F:14-233
1c	PNP_UDP_1-1k9sF03	F:14-233
1d	PNP_UDP_1-1k9sF04	F:14-233
1e	PNP_UDP_1-1k9sF05	F:14-233
1f	PNP_UDP_1-1k9sF06	F:14-233

Asymmetric/Biological Unit(hide GO term definitions)

Chain A,B,C,D,E,F (DEOD_ECOLI | P0ABP8)

molecular function
	GO:0003824	catalytic activity	Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
	GO:0042802	identical protein binding	Interacting selectively and non-covalently with an identical protein or proteins.
	GO:0004731	purine-nucleoside phosphorylase activity	Catalysis of the reaction: purine nucleoside + phosphate = purine + alpha-D-ribose 1-phosphate.
	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).
	GO:0016763	transferase activity, transferring pentosyl groups	Catalysis of the transfer of a pentosyl group from one compound (donor) to another (acceptor).
biological process
	GO:0006974	cellular response to DNA damage stimulus	Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating damage to its DNA from environmental insults or errors during metabolism.
	GO:0006139	nucleobase-containing compound metabolic process	Any cellular metabolic process involving nucleobases, nucleosides, nucleotides and nucleic acids.
	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:0006152	purine nucleoside catabolic process	The chemical reactions and pathways resulting in the breakdown of purine nucleoside, one of a family of organic molecules consisting of a purine base covalently bonded to a sugar ribose (a ribonucleoside) or deoxyribose (a deoxyribonucleoside).
	GO:0019686	purine nucleoside interconversion	The chemical reactions and pathways by which a purine nucleoside is synthesized from another purine nucleoside.
	GO:0042278	purine nucleoside metabolic process	The chemical reactions and pathways involving one of a family of organic molecules consisting of a purine base covalently bonded to a sugar ribose (a ribonucleoside) or deoxyribose (a deoxyribonucleoside).
cellular component
	GO:0005829	cytosol	The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
	GO:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

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1a69	1A69 IS PURINE NUCLEOSIDE PHOSPHORYLASE IN COMPLEX WITH FORMYCIN B AND SULPHATE (PHOSPHATE).
1ecp	1ECP IS PURINE NUCLEOSIDE PHOSPHORYLASE.

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (3, 12)

Sites (12, 12)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (1, 6)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (1, 6)

CATH Domains (1, 6)

Pfam Domains (1, 6)

Gene Ontology (14, 14)

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Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File