Structure of PDB 3rtb Chain A Binding Site BS01

Receptor Information

>3rtb Chain A (length=490) Species: 2336 (Thermotoga maritima)

HMKEIDELTIKEYGVDSRILMERAGISVVLAMEEELGNLSDYRFLVLCGG
GNNGGDGFVVARNLLGVVKDVLVVFLGKKKTPDCEYNYGLYKKFGGKVVE
QFEPSILNEFDVVVDAIFGTGLRGEITGEYAEIINLVNKSGKVVVSVDVP
SGIDSNTGKVLRTAVKADLTVTFGVPKIGHILFPGRDLTGKLKVANIGHP
VHLINSINRYVITREMVRSLLPERPRDSHKGTYGKVLIIAGSRLYSGAPV
LSGMGSLKVGTGLVKLAVPFPQNLIATSRFPELISVPIDTEKGFFSLQNL
QECLELSKDVDVVAIGPGLGNNEHVREFVNEFLKTLEKPAVIDADAINVL
DTSVLKERKSPAVLTPHPGEMARLVKKTVGDVKYNYELAEEFAKENDCVL
VLKSATTIVTDGEKTLFNITGNTGLSKGGSGDVLTGMIAGFIAQGLSPLE
ASTVSVYLHGFAAELFEQDERGLTASELLRLIPEAIRRLK

Ligand information

>3rtb Chain B (length=6) Species: 469008 (Escherichia coli BL21(DE3))

AWLFEA

Receptor-Ligand Complex Structure

Structure summary

• PDB: 3rtb Identification of unknown protein function using metabolite cocktail screening.
• Resolution: 2.1 Å
• Binding residue (original residue number in PDB): R22 A30 K192 V193 A194 N195
• Binding residue (residue number reindexed from 1): R23 A31 K193 V194 A195 N196

Enzymatic activity

• Enzyme Commision number: 4.2.1.136: ADP-dependent NAD(P)H-hydrate dehydratase.
  5.1.99.6: NAD(P)H-hydrate epimerase.

Gene Ontology

Molecular Function

• GO:0005524 ATP binding
• GO:0016829 lyase activity
• GO:0016836 hydro-lyase activity
• GO:0016853 isomerase activity
• GO:0046872 metal ion binding
• GO:0052855 ADP-dependent NAD(P)H-hydrate dehydratase activity
• GO:0052856 NAD(P)HX epimerase activity

Biological Process

• GO:0046496 nicotinamide nucleotide metabolic process
• GO:0110051 metabolite repair

External links

• PDB: RCSB:3rtb, PDBe:3rtb, PDBj:3rtb
• PDBsum: 3rtb
• PubMed: 22940582
• UniProt: Q9X024|NNR_THEMA Bifunctional NAD(P)H-hydrate repair enzyme Nnr (Gene Name=nnr)