Structure of PDB 4ucq Chain Q Binding Site BS03

Receptor Information

>4ucq Chain Q (length=544) Species: 878 (Solidesulfovibrio fructosivorans)

PTPQSTFTGPIVVDPITRIEGHLRIMVEVENGKVKDAWSSSQLFRGLEII
LKGRDPRDAQHFTQRACGVCTYVHALASSRCVDDAVKVSIPANARMMRNL
VMASQYLHDHLVHFYHLHALDWVDVTAALKADPNKAAKLAASIAPARPGN
SAKALKAVQDKLKAFVESGQLGIFTNAYFLGGHKAYYLPPEVDLIATAHY
LEALHMQVKAASAMAILGGKNPHTQFTVVGGCSNYQGLTKDPLANYLALS
KEVCQFVNECYIPDLLAVAGFYKDWGGIGGTSNYLAFGEFATDDSSPEKH
LATSQFPSGVITGRDLGKVDNVDLGAIYEDVKYSWYAPGGDGKHPYDGVT
DPKYTKLDDKDHYSWMKAPRYKGKAMEVGPLARTFIAYAKGQPDFKKVVD
MVLGKLSVPATALHSTLGRTAARGIETAIVCANMEKWIKEMADSGAKDNT
LCAKWEMPEESKGVGLADAPRGALSHWIRIKGKKIDNFQLVVPSTWNLGP
RGAQGDKSPVEEALIGTPIADPKRPVEILRTVHAFDPCIACGVH

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: 4ucq Chain Q Residue 1553

Receptor-Ligand Complex Structure

Structure summary

• PDB: 4ucq A threonine stabilizes the NiC and NiR catalytic intermediates of [NiFe]-hydrogenase.
• Resolution: 2.6 Å
• Binding residue (original residue number in PDB): E53 L495 H549
• Binding residue (residue number reindexed from 1): E48 L490 H544
• Annotation score: 1

Enzymatic activity

• Enzyme Commision number: 1.12.2.1: cytochrome-c3 hydrogenase.

Gene Ontology

Molecular Function

• GO:0008901 ferredoxin hydrogenase activity
• GO:0016151 nickel cation binding
• GO:0016491 oxidoreductase activity
• GO:0046872 metal ion binding
• GO:0047806 cytochrome-c3 hydrogenase activity

Cellular Component

• GO:0042597 periplasmic space

External links

• PDB: RCSB:4ucq, PDBe:4ucq, PDBj:4ucq
• PDBsum: 4ucq
• PubMed: 25666617
• UniProt: P18188|PHNL_SOLFR Periplasmic [NiFe] hydrogenase large subunit (Gene Name=hydB)