Structure of PDB 1k9s Chain E Binding Site BS03

Receptor Information

>1k9s Chain E (length=237) Species: 562 (Escherichia coli) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]

ATPHINAEMGDFADVVLMPGDPLRAKYIAETFLEDAREVNNVRGMLGFTG
TYKGRKISVMGHGMGIPSCSIYTKELITDFGVKKIIRVGSCGAVLPHVKL
RDVVIGMGACTDSKVNRIRFKDHDFAAIADFDMVRNAVDAAKALGIDARV
GNLFSADLFYSPDGEMFDVMEKYGILGVEMEAAGIYGVAAEFGAKALTIC
TVSDHIRTHEQTTAAERQTTFNDMIKIALESVLLGDK

Ligand information

Ligand ID

FM1

InChI

InChI=1S/C11H15N5O4/c1-12-11-7-5(13-3-14-11)6(15-16-7)10-9(19)8(18)4(2-17)20-10/h3-4,8-10,17-19H,2H2,1H3,(H,15,16)(H,12,13,14)/t4-,8-,9-,10+/m1/s1

InChIKey

JRRNRCMIBCSOIH-LFAOKBQASA-N

SMILES

Software	SMILES
OpenEye OEToolkits 1.5.0	CNc1c2c(c(n[nH]2)C3C(C(C(O3)CO)O)O)ncn1
ACDLabs 10.04	OC1C(OC(CO)C1O)c3nnc2c3ncnc2NC
CACTVS 3.341	CNc1ncnc2c1[nH]nc2[CH]3O[CH](CO)[CH](O)[CH]3O
CACTVS 3.341	CNc1ncnc2c1[nH]nc2[C@@H]3O[C@H](CO)[C@@H](O)[C@H]3O
OpenEye OEToolkits 1.5.0	CNc1c2c(c(n[nH]2)[C@H]3[C@@H]([C@@H]([C@H](O3)CO)O)O)ncn1

Formula

C11 H15 N5 O4

Name

2-HYDROXYMETHYL-5-(7-METHYLAMINO-3H-PYRAZOLO[4,3-D]PYRIMIDIN-3-YL)-TETRAHYDRO-FURAN-3,4-DIOL;
N7-METHYL-FORMYCIN A

PDB chain

1k9s Chain E Residue 9909 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]

Receptor-Ligand Complex Structure

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Structure summary

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PDB	1k9s Open and closed conformation of the E. coli purine nucleoside phosphorylase active center and implications for the catalytic mechanism.
Resolution	2.0 Å
Binding residue (original residue number in PDB)	M64 S90 F159 V178 E179 M180 E181 D204
Binding residue (residue number reindexed from 1)	M64 S90 F159 V178 E179 M180 E181 D204
Annotation score	1

Enzymatic activity

Catalytic site (original residue number in PDB)	H4 G20 R24 R43 E75 R87 S90 S203 D204 I206 R217
Catalytic site (residue number reindexed from 1)	H4 G20 R24 R43 E75 R87 S90 S203 D204 I206 R217
Enzyme Commision number	2.4.2.1: purine-nucleoside phosphorylase.

Gene Ontology

	Molecular Function
GO:0003824	catalytic activity
GO:0004731	purine-nucleoside phosphorylase activity
GO:0016757	glycosyltransferase activity
GO:0016763	pentosyltransferase activity
GO:0042802	identical protein binding
GO:0047975	guanosine phosphorylase activity

	Biological Process
GO:0006139	nucleobase-containing compound metabolic process
GO:0006152	purine nucleoside catabolic process
GO:0006974	DNA damage response
GO:0009116	nucleoside metabolic process
GO:0009164	nucleoside catabolic process
GO:0019686	purine nucleoside interconversion
GO:0042278	purine nucleoside metabolic process

	Cellular Component
GO:0005737	cytoplasm
GO:0005829	cytosol
GO:0016020	membrane

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Cellular Component

External links

PDB	RCSB:1k9s, PDBe:1k9s, PDBj:1k9s
PDBsum	1k9s
PubMed	11786017
UniProt	P0ABP8\|DEOD_ECOLI Purine nucleoside phosphorylase DeoD-type (Gene Name=deoD)

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