Record Information
Version2.0
Creation Date2010-05-26 16:48:09 UTC
Update Date2014-12-24 20:26:31 UTC
Accession NumberT3D3774
Identification
Common NameSecalonic Acid D
ClassSmall Molecule
DescriptionSecalonic acid D (SAD) is a mycotoxin produced by the fungus Pencillium oxalicum, which is a common contaminant in corn and other grains. Secalonic acid D is a human teratogen that induces cleft palate. (1)
Compound Type
  • Ester
  • Ether
  • Fungal Toxin
  • Mycotoxin
  • Natural Compound
  • Organic Compound
Chemical Structure
Thumb
Synonyms
Synonym
(7,7'-Bi-4aH-xanthene)-4a,4'a-dicarboxylic acid, 2,2',3,3',4,4',9,9'-octahydro-1,1',4,4',8,8'-hexahydroxy-3,3'-dimethyl-9,9'-dioxo-, dimethyl ester, (3S-(3-alpha,4-beta,4a-beta,7(3'R,4'S,4'aS)))
Ergochrome AA (2,2')-5-beta,6-alpha,10-beta-5',6'-alpha,10'-beta
SAD
Secalonate D
Secalonic acid D
Secalonic acid D mycotoxin
Secalonsaure D
Chemical FormulaC32H30O14
Average Molecular Mass638.572 g/mol
Monoisotopic Mass638.164 g/mol
CAS Registry Number35287-69-5
IUPAC Namemethyl 4,8,9-trihydroxy-3-methyl-1-oxo-7-[4,8,9-trihydroxy-4a-(methoxycarbonyl)-3-methyl-1-oxo-2,3,4,4a-tetrahydro-1H-xanthen-7-yl]-2,3,4,4a-tetrahydro-1H-xanthene-4a-carboxylate
Traditional Namesecalonic acid D
SMILESCOC(=O)C12OC3=C(C(O)=C(C=C3)C3=C(O)C4=C(OC5(C(O)C(C)CC(=O)C5=C4O)C(=O)OC)C=C3)C(O)=C1C(=O)CC(C)C2O
InChI IdentifierInChI=1S/C32H30O14/c1-11-9-15(33)21-25(37)19-17(45-31(21,27(11)39)29(41)43-3)7-5-13(23(19)35)14-6-8-18-20(24(14)36)26(38)22-16(34)10-12(2)28(40)32(22,46-18)30(42)44-4/h5-8,11-12,27-28,35-40H,9-10H2,1-4H3
InChI KeyInChIKey=NFZJAYYORNVZNI-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as xanthenes. These are polycyclic aromatic compounds containing a xanthene moiety, which consists of two benzene rings joined to each other by a pyran ring.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassBenzopyrans
Sub Class1-benzopyrans
Direct ParentXanthenes
Alternative Parents
Substituents
  • Xanthene
  • 1-hydroxy-4-unsubstituted benzenoid
  • Alkyl aryl ether
  • Beta-hydroxy acid
  • Dicarboxylic acid or derivatives
  • Benzenoid
  • Hydroxy acid
  • Cyclic alcohol
  • Vinylogous acid
  • Methyl ester
  • Carboxylic acid ester
  • Secondary alcohol
  • Ketone
  • Ether
  • Enol
  • Oxacycle
  • Carboxylic acid derivative
  • Polyol
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Alcohol
  • Carbonyl group
  • Organic oxide
  • Organooxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Cytoplasm
  • Extracellular
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateSolid
AppearanceWhite powder.
Experimental Properties
PropertyValue
Melting PointNot Available
Boiling PointNot Available
SolubilityNot Available
LogPNot Available
Predicted Properties
PropertyValueSource
Water Solubility0.28 g/LALOGPS
logP1.62ALOGPS
logP1.19ChemAxon
logS-3.4ALOGPS
pKa (Strongest Acidic)5.57ChemAxon
pKa (Strongest Basic)-3.5ChemAxon
Physiological Charge-2ChemAxon
Hydrogen Acceptor Count12ChemAxon
Hydrogen Donor Count6ChemAxon
Polar Surface Area226.58 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity156.5 m³·mol⁻¹ChemAxon
Polarizability63.29 ųChemAxon
Number of Rings6ChemAxon
Bioavailability0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyDeposition DateView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-0000209000-fbd21faaff04fd0994e82016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-009i-1341429000-8e5a7a842c2b59ca53342016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00di-1090000000-db059c3481746c5817f02016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-0000119000-2f2c44ebedcf7b00751c2016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-00p0-0254419000-2a03bc319b29191e5c612016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-014i-1559250000-6cfd148c809a2998b5dd2016-08-03View Spectrum
Toxicity Profile
Route of ExposureOral, dermal, inhalation, and parenteral (contaminated drugs). (4)
Mechanism of ToxicitySecalonic acid D (SAD) is though to induce cleft palate by causing the formation of smaller palatal shelves that fail to elevate and fuse. This inhibited palatal shelf growth is a result of the of SAD causing reduced proliferation of embryonic palatal mesenchymal (HEPM) cells. SAD binds to and phosphorylates cAMP response element binding protein (CREB), an important transcription factor required for the expression of numerous genes including proliferating cell nuclear antigen (PCNA) gene. The phosphorylation of CREB by SAD prevents it from forming the necessary transcription factor-cAMP response element complex at transcription start sites, so these genes are not expressed. This leads to reduced palatal mesenchymal cell number causing reduced palatal shelf growth and thus cleft palate. (1, 2, 3)
MetabolismNot Available
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesSecalonic acid D (SAD) is a mycotoxin produced by the fungus Pencillium oxalicum, which is a common contaminant in corn and other grains. (1)
Minimum Risk LevelNot Available
Health EffectsSecalonic acid D is a human teratogen that induces cleft palate. (1)
SymptomsCleft palate is a congenital deformity characterized by a gap on the roof of the mouth that is present at birth. (3)
TreatmentCleft palate can be treated with corrective surgery. (3)
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
DrugBank IDNot Available
HMDB IDNot Available
PubChem Compound ID73431
ChEMBL IDNot Available
ChemSpider IDNot Available
KEGG IDNot Available
UniProt IDNot Available
OMIM ID
ChEBI IDNot Available
BioCyc IDNot Available
CTD IDNot Available
Stitch IDNot Available
PDB IDNot Available
ACToR IDNot Available
Wikipedia LinkNot Available
References
Synthesis ReferenceNot Available
MSDST3D3774.pdf
General References
  1. Dhulipala VC, Maddali KK, Welshons WV, Reddy CS: Secalonic acid D blocks embryonic palatal mesenchymal cell-cycle by altering the activity of CDK2 and the expression of p21 and cyclin E. Birth Defects Res B Dev Reprod Toxicol. 2005 Jun;74(3):233-42. [15880679 ]
  2. Hanumegowda UM, Dhulipala VC, Reddy CS: Mechanism of secalonic acid D-induced inhibition of transcription factor binding to cyclic AMP response element in the developing murine palate. Toxicol Sci. 2002 Nov;70(1):55-62. [12388835 ]
  3. Hanumegowda UM, Judy BM, Welshons WV, Reddy CS: Selective inhibition of murine palatal mesenchymal cell proliferation in vitro by secalonic acid D. Toxicol Sci. 2002 Mar;66(1):159-65. [11861983 ]
  4. Peraica M, Domijan AM: Contamination of food with mycotoxins and human health. Arh Hig Rada Toksikol. 2001 Mar;52(1):23-35. [11370295 ]
Gene Regulation
Up-Regulated GenesNot Available
Down-Regulated GenesNot Available

Targets

General Function:
Transcriptional activator activity, rna polymerase ii transcription factor binding
Specific Function:
Phosphorylation-dependent transcription factor that stimulates transcription upon binding to the DNA cAMP response element (CRE), a sequence present in many viral and cellular promoters. Transcription activation is enhanced by the TORC coactivators which act independently of Ser-133 phosphorylation. Involved in different cellular processes including the synchronization of circadian rhythmicity and the differentiation of adipose cells.
Gene Name:
CREB1
Uniprot ID:
P16220
Molecular Weight:
36687.86 Da
References
  1. Dhulipala VC, Maddali KK, Welshons WV, Reddy CS: Secalonic acid D blocks embryonic palatal mesenchymal cell-cycle by altering the activity of CDK2 and the expression of p21 and cyclin E. Birth Defects Res B Dev Reprod Toxicol. 2005 Jun;74(3):233-42. [15880679 ]
  2. Hanumegowda UM, Dhulipala VC, Reddy CS: Mechanism of secalonic acid D-induced inhibition of transcription factor binding to cyclic AMP response element in the developing murine palate. Toxicol Sci. 2002 Nov;70(1):55-62. [12388835 ]
  3. Hanumegowda UM, Judy BM, Welshons WV, Reddy CS: Selective inhibition of murine palatal mesenchymal cell proliferation in vitro by secalonic acid D. Toxicol Sci. 2002 Mar;66(1):159-65. [11861983 ]
General Function:
Transcriptional activator activity, rna polymerase ii core promoter proximal region sequence-specific binding
Specific Function:
Endoplasmic reticulum (ER)-bound transcription factor that plays a role in the unfolded protein response (UPR). Involved in cell proliferation and migration, tumor suppression and inflammatory gene expression. Plays also a role in the human immunodeficiency virus type 1 (HIV-1) virus protein expression and in the herpes simplex virus-1 (HSV-1) latent infection and reactivation from latency. Isoform 2 plays a role in the unfolded protein response (UPR). Isoform 2 acts as a positive regulator of LKN-1/CCL15-induced chemotaxis signaling of leukocyte cell migration. Isoform 2 may play a role as a cellular tumor suppressor that is targeted by the hepatitis C virus (HSV) core protein. Isoform 2 represses the VP16-mediated transactivation of immediate early genes of the HSV-1 virus by sequestring host cell factor-1 HCFC1 in the ER membrane of sensory neurons, thereby preventing the initiation of the replicative cascade leading to latent infection. Isoform 3 functions as a negative transcriptional regulator in ligand-induced transcriptional activation of the glucocorticoid receptor NR3C1 by recruiting and activating histone deacetylases (HDAC1, HDAC2 and HDAC6). Isoform 3 decreases the acetylation level of histone H4. Isoform 3 does not promote the chemotactic activity of leukocyte cells.Processed cyclic AMP-responsive element-binding protein 3: acts as a transcription factor that activates unfolded protein response (UPR) target genes during endoplasmic reticulum (ER) stress response. Promotes cell survival against ER stress-induced apoptotic cell death during UPR. Activates transcription from CRE and C/EBP-containing reporter genes. Induces transcriptional activation of chemokine receptors. Activates transcription of genes required for reactivation of the latent HSV-1 virus. Down-regulates Tat-dependent transcription of the HIV-1 LTR by interacting with HIV-1 Tat. It's transcriptional activity is inhibited by CREBZF in a HCFC1-dependent manner, by the viral transactivator protein VP16 and by the HCV core protein. Binds DNA to the cAMP response element (CRE) (consensus: 5'-GTGACGT[AG][AG]-3') and C/EBP sequences present in many viral and cellular promoters. Binds to the unfolded protein respons element (UPRE) consensus sequences sites. Binds DNA to the 5'-CCAC[GA]-3'half of ERSE II (5'-ATTGG-N-CCACG-3'). Associates with chromatin to the HERPUD1 promoter.
Gene Name:
CREB3
Uniprot ID:
O43889
Molecular Weight:
43916.65 Da
References
  1. Dhulipala VC, Maddali KK, Welshons WV, Reddy CS: Secalonic acid D blocks embryonic palatal mesenchymal cell-cycle by altering the activity of CDK2 and the expression of p21 and cyclin E. Birth Defects Res B Dev Reprod Toxicol. 2005 Jun;74(3):233-42. [15880679 ]
  2. Hanumegowda UM, Dhulipala VC, Reddy CS: Mechanism of secalonic acid D-induced inhibition of transcription factor binding to cyclic AMP response element in the developing murine palate. Toxicol Sci. 2002 Nov;70(1):55-62. [12388835 ]
  3. Hanumegowda UM, Judy BM, Welshons WV, Reddy CS: Selective inhibition of murine palatal mesenchymal cell proliferation in vitro by secalonic acid D. Toxicol Sci. 2002 Mar;66(1):159-65. [11861983 ]
General Function:
Transcription factor activity, sequence-specific dna binding
Specific Function:
Binds to the cAMP response element and activates transcription.
Gene Name:
CREB5
Uniprot ID:
Q02930
Molecular Weight:
56918.115 Da
References
  1. Dhulipala VC, Maddali KK, Welshons WV, Reddy CS: Secalonic acid D blocks embryonic palatal mesenchymal cell-cycle by altering the activity of CDK2 and the expression of p21 and cyclin E. Birth Defects Res B Dev Reprod Toxicol. 2005 Jun;74(3):233-42. [15880679 ]
  2. Hanumegowda UM, Dhulipala VC, Reddy CS: Mechanism of secalonic acid D-induced inhibition of transcription factor binding to cyclic AMP response element in the developing murine palate. Toxicol Sci. 2002 Nov;70(1):55-62. [12388835 ]
  3. Hanumegowda UM, Judy BM, Welshons WV, Reddy CS: Selective inhibition of murine palatal mesenchymal cell proliferation in vitro by secalonic acid D. Toxicol Sci. 2002 Mar;66(1):159-65. [11861983 ]
4. activator protein 1 (Protein Group)
General Function:
Transcriptional activator activity, rna polymerase ii transcription regulatory region sequence-specific binding
Specific Function:
This protein binds the cAMP response element (CRE) (consensus: 5'-GTGACGT[AC][AG]-3'), a sequence present in many viral and cellular promoters. Binds to the Tax-responsive element (TRE) of HTLV-I. Mediates PKA-induced stimulation of CRE-reporter genes. Represses the expression of FTH1 and other antioxidant detoxification genes. Triggers cell proliferation and transformation.
Included Proteins:
P18846 , P15336 , P18847 , P18848 , Q9Y2D1 , P18850 , P17544 , Q8WYK2 , P01100 , P05412
References
  1. Dhulipala VC, Maddali KK, Welshons WV, Reddy CS: Secalonic acid D blocks embryonic palatal mesenchymal cell-cycle by altering the activity of CDK2 and the expression of p21 and cyclin E. Birth Defects Res B Dev Reprod Toxicol. 2005 Jun;74(3):233-42. [15880679 ]
  2. Hanumegowda UM, Dhulipala VC, Reddy CS: Mechanism of secalonic acid D-induced inhibition of transcription factor binding to cyclic AMP response element in the developing murine palate. Toxicol Sci. 2002 Nov;70(1):55-62. [12388835 ]
  3. Hanumegowda UM, Judy BM, Welshons WV, Reddy CS: Selective inhibition of murine palatal mesenchymal cell proliferation in vitro by secalonic acid D. Toxicol Sci. 2002 Mar;66(1):159-65. [11861983 ]