Structure of PDB 4n93 Chain A Binding Site BS01

Receptor Information

>4n93 Chain A (length=346) Species: 1773 (Mycobacterium tuberculosis)

VPSWPQILGRLTDNRDLARGQAAWAMDQIMTGNARPAQIAAFAVAMTMKA
PTADEVGELAGVMLSHAHPLPADTVPDDAVDVVGTGGDGVNTVNLSTMAA
IVVAAAGVPVVKHGNRAASSLSGGADTLEALGVRIDLGPDLVARSLAEVG
IGFCFAPRFHPSYRHAAAVRREIGVPTVFNLLGPLTNPARPRAGLIGCAF
ADLAEVMAGVFAARRSSVLVVHGDDGLDELTTTTTSTIWRVAAGSVDKLT
FDPAGFGFARAQLDQLAGGDAQANAAAVRAVLGGARGPVRDAVVLNAAGA
IVAHAGLSSAEWLPAWEEGLRRASAAIDTGAAEQLLARWVRFGRQI

Ligand information

• Ligand ID: MG
• InChI: InChI=1S/Mg/q+2
• InChIKey: JLVVSXFLKOJNIY-UHFFFAOYSA-N
• SMILES:
  ACDLabs 10.04
  OpenEye OEToolkits 1.5.0: [Mg+2]
  CACTVS 3.341: [Mg++]
• Formula: Mg
• Name: MAGNESIUM ION
• DrugBank: DB01378
• PDB chain: 4n93 Chain A Residue 501

Receptor-Ligand Complex Structure

Structure summary

• PDB: 4n93 Alternative substrates reveal catalytic cycle and key binding events in the reaction catalysed by anthranilate phosphoribosyltransferase from Mycobacterium tuberculosis.
• Resolution: 2.03 Å
• Binding residue (original residue number in PDB): D251 E252
• Binding residue (residue number reindexed from 1): D228 E229
• Annotation score: 1

Enzymatic activity

• Catalytic site (original residue number in PDB): V106
• Catalytic site (residue number reindexed from 1): V83
• Enzyme Commision number: 2.4.2.18: anthranilate phosphoribosyltransferase.

Gene Ontology

Molecular Function

• GO:0000287 magnesium ion binding
• GO:0004048 anthranilate phosphoribosyltransferase activity
• GO:0016757 glycosyltransferase activity
• GO:0016763 pentosyltransferase activity
• GO:0046872 metal ion binding

Biological Process

• GO:0000162 tryptophan biosynthetic process

Cellular Component

• GO:0005576 extracellular region
• GO:0005829 cytosol
• GO:0005886 plasma membrane

External links

• PDB: RCSB:4n93, PDBe:4n93, PDBj:4n93
• PDBsum: 4n93
• PubMed: 24712732
• UniProt: P9WFX5|TRPD_MYCTU Anthranilate phosphoribosyltransferase (Gene Name=trpD)