BindingDB logo
myBDB logout

BDBM50056998 4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e][1,2]thiazine-3-carboxylic acid (5-methyl-thiazol-2-yl)-amide::4-Hydroxy-2-methyl-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e][1,2]thiazine-3-carboxylic acid (5-methyl-thiazol-2-yl)-amide::CHEMBL599::MELOXICAM::Meloxicam sodium::Mobic::UH-AC 62XX::UHAC-62XX

SMILES: CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O

InChI Key: InChIKey=ZRVUJXDFFKFLMG-UHFFFAOYSA-N

Data: 12 KI  12 IC50

PDB links: 2 PDB IDs match this monomer.

Find this compound or compounds like it in BindingDB or PDB:
   Substructure
Similarity at least:  must be >=0.5
Exact match

Activity Spreadsheet -- Enzyme Inhibition Constant Data from BindingDB

Found 20 hits for monomerid = 50056998   
Target/Host
(Institution)
LigandTarget/Host
Links
Ligand
Links
Trg + Lig
Links
Ki
nM
ΔG°
kcal/mole
IC50
nM
Kd
nM
EC50/IC50
nM
koff
s-1
kon
M-1s-1
pHTemp
°C
Cyclooxygenase-1 (COX-1)


(Homo sapiens (Human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB

UniProtKB/SwissProt

antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

PDB
Article
PubMed
140n/an/an/an/an/an/an/an/a



Merck Frosst Centre for Therapeutic Research

Curated by PDSP Ki Database




J Pharmacol Exp Ther 296: 558-66 (2001)

More data for this
Ligand-Target Pair
3D
3D Structure (crystal)
Cyclooxygenase


(Homo sapiens (human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB
MMDB

NCI pathway
Reactome pathway
KEGG

UniProtKB/SwissProt

B.MOAD
DrugBank
antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

PDB
PubMed
230n/an/an/an/an/an/an/an/a



St. Bartholomew's and the Royal London School of Medicine and Dentistry

Curated by PDSP Ki Database




Citation and Details
More data for this
Ligand-Target Pair
3D
3D Structure (crystal)
Cyclooxygenase


(Homo sapiens (human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB
MMDB

NCI pathway
Reactome pathway
KEGG

UniProtKB/SwissProt

B.MOAD
DrugBank
antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

PDB
PubMed
700n/an/an/an/an/an/an/an/a



Merck Frosst Centre for Therapeutic Research

Curated by PDSP Ki Database




Citation and Details
More data for this
Ligand-Target Pair
3D
3D Structure (crystal)
Cyclooxygenase


(Homo sapiens (human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB
MMDB

NCI pathway
Reactome pathway
KEGG

UniProtKB/SwissProt

B.MOAD
DrugBank
antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

PDB
Article
PubMed
700n/an/an/an/an/an/an/an/a



Merck Frosst Centre for Therapeutic Research

Curated by PDSP Ki Database




J Pharmacol Exp Ther 296: 558-66 (2001)

More data for this
Ligand-Target Pair
3D
3D Structure (crystal)
Cyclooxygenase-1 (COX-1)


(Homo sapiens (Human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB

UniProtKB/SwissProt

antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

PDB
Article
PubMed
1.40E+3n/an/an/an/an/an/an/an/a



Merck Frosst Centre for Therapeutic Research

Curated by PDSP Ki Database




J Pharmacol Exp Ther 296: 558-66 (2001)

More data for this
Ligand-Target Pair
3D
3D Structure (crystal)
Cyclooxygenase-1 (COX-1)


(Homo sapiens (Human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB

UniProtKB/SwissProt

antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

PDB
PubMed
1.40E+3n/an/an/an/an/an/an/an/a



Merck Frosst Centre for Therapeutic Research

Curated by PDSP Ki Database




Citation and Details
More data for this
Ligand-Target Pair
3D
3D Structure (crystal)
Cyclooxygenase


(Homo sapiens (human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB
MMDB

NCI pathway
Reactome pathway
KEGG

UniProtKB/SwissProt

B.MOAD
DrugBank
antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

PDB
PubMed
2.10E+3n/an/an/an/an/an/an/an/a



St. Bartholomew's and the Royal London School of Medicine and Dentistry

Curated by PDSP Ki Database




Citation and Details
More data for this
Ligand-Target Pair
3D
3D Structure (crystal)
Cyclooxygenase-1 (COX-1)


(Homo sapiens (Human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB

UniProtKB/SwissProt

antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

PDB
PubMed
5.70E+3n/an/an/an/an/an/an/an/a



St. Bartholomew's and the Royal London School of Medicine and Dentistry

Curated by PDSP Ki Database




Citation and Details
More data for this
Ligand-Target Pair
3D
3D Structure (crystal)
Glutathione reductase (GR)


(Homo sapiens (Human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
UniProtKB/SwissProt

antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

Article
PubMed
6.10E+3 -7.11 2.90E+4n/an/an/an/a8.025



Ataturk University



Assay Description
GR activity was determined by the method of Carlberg and Mannervik [Carlberg et al., FL:Academic Press, 72:248-254] with a Shimadzu Spectrophotometer...


J Enzyme Inhib Med Chem 27: 18-23 (2012)

More data for this
Ligand-Target Pair
6-phosphogluconate dehydrogenase (6PGD)


(Homo sapiens (Human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB
MMDB

Reactome pathway
KEGG

UniProtKB/SwissProt

B.MOAD
DrugBank
antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

Article
PubMed
1.01E+4n/a 1.20E+4n/an/an/an/an/an/a



Ataturk University



Assay Description
In order to determine the effects of some drugs on human 6PGD, concentrations of ketotifen (0.0018-0.0282 mM), dacarbazine (0.0049-0.054 mM), meloxic...


J Enzyme Inhib Med Chem 25: 476-9 (2010)

More data for this
Ligand-Target Pair
6-phosphogluconate dehydrogenase (6PGD)


(Homo sapiens (Human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB
MMDB

Reactome pathway
KEGG

UniProtKB/SwissProt

B.MOAD
DrugBank
antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

Article
PubMed
5.09E+4n/a 5.50E+4n/an/an/an/an/an/a



Ataturk University



Assay Description
In order to determine the effects of some drugs on human 6PGD, concentrations of ketotifen (0.0018-0.0282 mM), dacarbazine (0.0049-0.054 mM), meloxic...


J Enzyme Inhib Med Chem 25: 476-9 (2010)

More data for this
Ligand-Target Pair
Glucose 6-phosphate dehydrogenase (G6PD)


(Homo sapiens (Human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB

UniProtKB/SwissProt

antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

Article
PubMed
5.79E+4n/a 6.70E+4n/an/an/an/an/an/a



Ataturk University



Assay Description
Ketotifen, dacarbazine, thiocolchicoside, meloxicam, methotrexate, furosemide, olanzapine, methylprednizolone acetate, paricalcitol, ritodrine hydroc...


J Enzyme Inhib Med Chem 25: 871-5 (2010)

More data for this
Ligand-Target Pair
Prostaglandin G/H synthase (cyclooxygenase)


(Ovis aries (Sheep))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB

KEGG

UniProtKB/SwissProt

B.MOAD
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

PDB
n/an/a 1.00E+3n/an/an/an/an/an/a



Wroclaw Medical University

Curated by ChEMBL


Assay Description
Inhibition of sheep seminal vesicle COX-1 assessed as reduction in oxygen consumption using arachidonic acid as substrate incubated for 12 mins follo...


Citation and Details
More data for this
Ligand-Target Pair
3D
3D Structure (crystal)
Cyclooxygenase


(Homo sapiens (human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB
MMDB

NCI pathway
Reactome pathway
KEGG

UniProtKB/SwissProt

B.MOAD
DrugBank
antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

PDB
PubMed
n/an/a 160n/an/an/an/an/an/a



Boehringer Ingelheim Pharmaceuticals

Curated by ChEMBL


Assay Description
Concentration that caused a 50% decrease in the maximal inhibition of Prostaglandin G/H synthase 2 activity as measured by PGE-2 production.


Citation and Details
More data for this
Ligand-Target Pair
3D
3D Structure (crystal)
Cyclooxygenase-1 (COX-1)


(Homo sapiens (Human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB

UniProtKB/SwissProt

antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

PDB
PubMed
n/an/a 1.40E+3n/an/an/an/an/an/a



Merck Frosst Centre for Therapeutic Research

Curated by ChEMBL


Assay Description
In vitro for its inhibitory activity against human whole blood Prostaglandin G/H synthase 1


Citation and Details
More data for this
Ligand-Target Pair
3D
3D Structure (crystal)
Cyclooxygenase


(Homo sapiens (human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB
MMDB

NCI pathway
Reactome pathway
KEGG

UniProtKB/SwissProt

B.MOAD
DrugBank
antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

PDB
PubMed
n/an/a 700n/an/an/an/an/an/a



Merck Frosst Centre for Therapeutic Research

Curated by ChEMBL


Assay Description
In vitro inhibitory activity against human whole blood Prostaglandin G/H synthase 2


Citation and Details
More data for this
Ligand-Target Pair
3D
3D Structure (crystal)
Cyclooxygenase-2 (COX-2)


(Mus musculus (Mouse))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB

UniProtKB/SwissProt

GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

PDB
n/an/a 151n/an/an/an/an/an/a



Wroclaw Medical University

Curated by ChEMBL


Assay Description
Inhibition of mouse COX-2 expressed in baculovirus infected Sf21 insect cells assessed as reduction in oxygen consumption using arachidonic acid as s...


Citation and Details
More data for this
Ligand-Target Pair
3D
3D Structure (crystal)
Cyclooxygenase-1 (COX-1)


(Homo sapiens (Human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB

UniProtKB/SwissProt

antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

PDB
Article
PubMed
n/an/a 3.66E+4n/an/an/an/an/an/a



Boehringer Ingelheim Pharmaceuticals

Curated by ChEMBL


Assay Description
Concentration of drug that causes a 50% decrease in the maximal inhibition of Prostaglandin G/H synthase 1 activity as measured by PGE-2 production('...


J Med Chem 40: 980-9 (1997)

More data for this
Ligand-Target Pair
3D
3D Structure (crystal)
Cyclooxygenase-1 (COX-1)


(Homo sapiens (Human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB

UniProtKB/SwissProt

antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

PDB
PubMed
n/an/a 2.20E+3n/an/an/an/an/an/a



Boehringer Ingelheim Pharmaceuticals

Curated by ChEMBL


Assay Description
Concentration that caused a 50% decrease in the maximal inhibition of Prostaglandin G/H synthase 1 activity as measured by PGE-2 production.


Citation and Details
More data for this
Ligand-Target Pair
3D
3D Structure (crystal)
Cyclooxygenase


(Homo sapiens (human))
BDBM50056998
PNG
(4-Hydroxy-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e...)
Show SMILES CN1C(C(=O)Nc2ncc(C)s2)=C(O)c2ccccc2S1(=O)=O
Show InChI InChI=1S/C14H13N3O4S2/c1-8-7-15-14(22-8)16-13(19)11-12(18)9-5-3-4-6-10(9)23(20,21)17(11)2/h3-7,18H,1-2H3,(H,15,16,19)
PDB
MMDB

NCI pathway
Reactome pathway
KEGG

UniProtKB/SwissProt

B.MOAD
DrugBank
antibodypedia
GoogleScholar
AffyNet 
Purchase

CHEMBL
DrugBank
KEGG
MMDB
PC cid
PC sid
PDB
UniChem

Similars

PDB
Article
PubMed
n/an/a 490n/an/an/an/an/an/a



Boehringer Ingelheim Pharmaceuticals

Curated by ChEMBL


Assay Description
Concentration of drug that causes a 50% decrease in the maximal inhibition of Prostaglandin G/H synthase 2 activity as measured by PGE-2 production


J Med Chem 40: 980-9 (1997)

More data for this
Ligand-Target Pair
3D
3D Structure (crystal)