Structure of PDB 4kpr Chain E Binding Site BS01

Receptor Information
>4kpr Chain E (length=484) Species: 10116 (Rattus norvegicus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
SYDFDLIIIGGGSGGLAAAKEAAKFDKKVMVLDFVTPTPLGTRWGLGGTC
VNVGCIPKKLMHQAALLGQALKDSRNYGWKLEDTVKHDWEKMTESVQNHI
GSLNWGYRVALREKKVVYENAYGKFIGPHKIMATNNKGKEKVYSAERFLI
ATGERPRYLGIPGDKEYCISSDDLFSLPYCPGKTLVVGASYVALECAGFL
AGIGLDVTVMVRSILLRGFDQDMANKIGEHMEEHGIKFIRQFVPTKIEQI
EAGTPGRLKVTAKSTNSEETIEDEFNTVLLAVGRDSCTRTIGLETVGVKI
NEKTGKIPVTDEEQTNVPYIYAIGDILEGKLELTPVAIQAGRLLAQRLYG
GSTVKCDYDNVPTTVFTPLEYGCCGLSEEKAVEKFGEENIEVYHSFFWPL
EWTVPSRDNNKCYAKVICNLKDNERVVGFHVLGPNAGEVTQGFAAALKCG
LTKQQLDSTIGIHPVCAEIFTTLSVTKRSGGDIL
Ligand information
Ligand IDSO3
InChIInChI=1S/H2O3S/c1-4(2)3/h(H2,1,2,3)/p-2
InChIKeyLSNNMFCWUKXFEE-UHFFFAOYSA-L
SMILES
SoftwareSMILES
CACTVS 3.341[O-][S]([O-])=O
OpenEye OEToolkits 1.5.0[O-]S(=O)[O-]
ACDLabs 10.04[O-]S([O-])=O
FormulaO3 S
NameSULFITE ION
ChEMBL
DrugBank
ZINC
PDB chain4kpr Chain E Residue 501 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB4kpr The Trp114 residue of thioredoxin reductase 1 is an electron relay sensor for oxidative stress
Resolution2.4 Å
Binding residue
(original residue number in PDB)		T304 V305
Binding residue
(residue number reindexed from 1)		T295 V296
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) C59 C64 G470
Catalytic site (residue number reindexed from 1) C50 C55 G461
Enzyme Commision number 1.11.1.2: NADPH peroxidase.
1.8.1.9: thioredoxin-disulfide reductase.
Gene Ontology
Molecular Function
GO:0004791 thioredoxin-disulfide reductase (NADPH) activity
GO:0016174 NAD(P)H oxidase H2O2-forming activity
GO:0016491 oxidoreductase activity
GO:0016668 oxidoreductase activity, acting on a sulfur group of donors, NAD(P) as acceptor
GO:0033797 selenate reductase activity
GO:0042802 identical protein binding
GO:0045340 mercury ion binding
GO:0050137 NADPH peroxidase activity
GO:0050660 flavin adenine dinucleotide binding
GO:0071949 FAD binding
Biological Process
GO:0001707 mesoderm formation
GO:0006979 response to oxidative stress
GO:0007369 gastrulation
GO:0008283 cell population proliferation
GO:0009410 response to xenobiotic stimulus
GO:0010269 response to selenium ion
GO:0016259 selenocysteine metabolic process
GO:0042537 benzene-containing compound metabolic process
GO:0042744 hydrogen peroxide catabolic process
GO:0043065 positive regulation of apoptotic process
GO:0045454 cell redox homeostasis
GO:0048678 response to axon injury
GO:0055093 response to hyperoxia
GO:0070276 halogen metabolic process
GO:0070995 NADPH oxidation
GO:0071280 cellular response to copper ion
GO:0071455 cellular response to hyperoxia
GO:0098869 cellular oxidant detoxification
Cellular Component
GO:0005634 nucleus
GO:0005737 cytoplasm
GO:0005739 mitochondrion
GO:0005829 cytosol
GO:0043025 neuronal cell body

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:4kpr, PDBe:4kpr, PDBj:4kpr
PDBsum4kpr
PubMed
UniProtO89049|TRXR1_RAT Thioredoxin reductase 1, cytoplasmic (Gene Name=Txnrd1)

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