mutLBSgeneDB

mutLBSgeneDB
mutated Ligand Binding Site gene DataBase

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Gene Summary

Ligand Binding Site Mutation Information

Protein Structure Related Information

Gene Expression and Gene-Gene Network

Phenotype Information

Pharmacological Information

Conservation Information for LBS

Gene summary for SMAD4
Gene summary
Basic gene Info.Gene symbolSMAD4
Gene nameSMAD family member 4
SynonymsDPC4|JIP|MADH4|MYHRS
CytomapUCSC genome browser: 18q21.1
Type of geneprotein-coding
RefGenesNM_005359.5,
DescriptionMAD homolog 4SMAD, mothers against DPP homolog 4deleted in pancreatic carcinoma locus 4deletion target in pancreatic carcinoma 4mothers against decapentaplegic homolog 4mothers against decapentaplegic, Drosophila, homolog of, 4
Modification date20141222
dbXrefs MIM : 600993
HGNC : HGNC
Ensembl : ENSG00000141646
HPRD : 02995
Vega : OTTHUMG00000132696
ProteinUniProt: Q13485
go to UniProt's Cross Reference DB Table
ExpressionCleanEX: HS_SMAD4
BioGPS: 4089
PathwayNCI Pathway Interaction Database: SMAD4
KEGG: SMAD4
REACTOME: SMAD4
Pathway Commons: SMAD4
ContextiHOP: SMAD4
ligand binding site mutation search in PubMed: SMAD4
UCL Cancer Institute: SMAD4
Assigned class in mutLBSgeneDBB: This gene belongs to targetable_mutLBSgenes.

Gene ontology having evidence of Inferred from Direct Assay (IDA) from Entrez
GO IDGO TermPubMed ID
GO:0007179transforming growth factor beta receptor signaling pathway9389648
GO:0007183SMAD protein complex assembly10823886
GO:0030308negative regulation of cell growth8774881
GO:0030509BMP signaling pathway9389648
GO:0030511positive regulation of transforming growth factor beta receptor signaling pathway19328798
GO:0035556intracellular signal transduction9389648
GO:0045892negative regulation of transcription, DNA-templated8774881
GO:0045893positive regulation of transcription, DNA-templated8774881
GO:0045944positive regulation of transcription from RNA polymerase II promoter18832382
GO:0060395SMAD protein signal transduction9707553
GO:0071559response to transforming growth factor beta9707553


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Ligand binding site mutations for SMAD4
Lollipop-style diagram of mutations at LBS in amino-acid sequence.
We represented ligand binding site mutations only. (You can see big image via clicking.)
 
: non-synonymous mutation on LBS, Circle size denotes number of samples.

Cancer type specific mutLBS sorted by frequency
LBSAAchange of nsSNVCancer type# samples
K507K507ECOAD6
R496D494GCOAD4
Q442R441CCOAD4
Q442R441SCOAD2
R515Q516RCOAD2
K507K507RCOAD2
K507W509RCOAD2
R502S504GCOAD2
R502S504ICOAD1
K507V506ECOAD1
R416R416ICOAD1
R496R496HCOAD1
K507V506ACOAD1
R515R515GCOAD1
R502R502KCOAD1
R496D494NCOAD1
R502R502GCOAD1
R496L495RCOAD1
R502S504RPRAD1
R497C499YSTAD1
cf) Cancer type abbreviation. BLCA: Bladder urothelial carcinoma, BRCA: Breast invasive carcinoma, CESC: Cervical squamous cell carcinoma and endocervical adenocarcinoma, COAD: Colon adenocarcinoma, GBM: Glioblastoma multiforme, LGG: Brain lower grade glioma, HNSC: Head and neck squamous cell carcinoma, KICH: Kidney chromophobe, KIRC: Kidney renal clear cell carcinoma, KIRP: Kidney renal papillary cell carcinoma, LAML: Acute myeloid leukemia, LUAD: Lung adenocarcinoma, LUSC: Lung squamous cell carcinoma, OV: Ovarian serous cystadenocarcinoma, PAAD: Pancreatic adenocarcinoma, PRAD: Prostate adenocarcinoma, SKCM: Skin cutaneous melanoma, STAD: Stomach adenocarcinoma, THCA: Thyroid carcinoma, UCEC: Uterine corpus endometrial carcinoma.

Clinical information for SMAD4 from My Cancer Genome.
SMAD4, SMAD family member 4, is one of eight SMAD proteins in the human genome (Massague 1998). SMAD4 is sometimes referred to as DPC4 (Hahn et al. 1996). SMAD4 is a signal transduction protein that is the central mediator for downstream transcriptional output in the TGF-β family signaling pathways via its interaction with upstream receptors and fellow SMAD transcription factors (Goustin et al. 1986; Tucker et al. 1984a; Tucker et al. 1984b). The TGF-β pathway plays a complex role in cancer development, progression, and metastasis (Bierie and Moses 2006; Elliott and Blobe 2005; Massague 2008; Miyaki and Kuroki 2003).SMAD4 consists of two domains connected by a linker region (Shi and Massague 2003). MAD homology domain 1 (MH1) is the N-terminal, DNA-binding domain (NCBI Gene Database). MAD homology domain 2 (MH2) is the C-terminal domain that interacts with upstream receptors and mediates oligomerization and transactivation to provide specificity and selectivity (NCBI Gene Database). Smad4 is made up of 11 coding exons.Mutations in SMAD4 are involved in several hereditary syndromes with cancer predisposition, including juvenile polyposis syndrome and hemorrhagic hereditary telangiectasia (HHT) syndrome. SMAD4 loss or mutation is also seen in approximately 50% of pancreatic tumors and in 10–35% of invasive CRC (Elliott and Blobe 2005; Hahn et al. 1996;Miyaki et al. 1999). The MH2, C-terminal domain of SMAD4 is the target of tumorigenic inactivation, and mutations in this region disrupt RSMAD oligomerization, which interrupts normal signaling pathways (Shi et al. 1997; Shi and Massague 2003).Beauchamp, R., Chan, E., Stover, D.G., Smith, J., Freeman, T.J. 2015. SMAD4. My Cancer Genome https://www.mycancergenome.org/content/gene/smad4/ (Updated December 2015)

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Protein structure related information for SMAD4
Relative protein structure stability change (ΔΔE) using Mupro 1.1
Mupro score denotes assessment of the effect of mutations on thermodynamic stability.
  (ΔΔE<0: mutation decreases stability, ΔΔE>0: mutation increases stability)
: nsSNV at non-LBS: nsSNV at LBS

nsSNVs sorted by the relative stability change of protein structure by each mutation
Blue: mutations of positive stability change. and red : the most recurrent mutation for this gene.
LBSAAchange of nsSNVRelative stability change
K507K507R0.10518294
K507K507E0.033821158
K507V506A-1.7989071
R502R502G-1.6228458
K507V506E-1.4614304
R502R502K-1.4057908
Q442R441S-1.3593812
R496L495R-1.3216992
R502S504G-1.1383694
K507W509R-1.0841622
Q442R441C-1.0465917
R515R515G-0.95656464
R496R496H-0.83577686
R496D494G-0.83266113
R496D494N-0.80277225
R502S504R-0.68903678
R416R416I-0.57677179
R502S504I-0.44450731
R515Q516R-0.35740712
R497C499Y-0.23871481
(MuPro1.1: Jianlin Cheng et al., Prediction of Protein Stability Changes for Single-Site Mutations Using Support Vector Machines, PROTEINS: Structure, Function, and Bioinformatics. 2006, 62:1125-1132)

Structure image for SMAD4 from PDB
PDB IDPDB titlePDB structure
1DD1CRYSTAL STRUCTURE ANALYSIS OF THE SMAD4 ACTIVE FRAGMENT

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Differential gene expression and gene-gene network for SMAD4
Differential gene expression between mutated and non-mutated LBS samples in all 16 major cancer types
SMAD4_COAD_DE

Differential co-expressed gene network based on protein-protein interaction data (CePIN)
* Left PPI network was created from samples with mutations in the LBS of SMAD4 and the right PPI network was created from samples without mutations in the LBS of SMAD4. Only genes with p-value < 0.05 are shown.
Red circle: input gene. Orange circle: LBSgene. Blue circle: other gene.

* In COAD


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Phenotype information for SMAD4
Gene level disease information (DisGeNet)
Disease IDDisease name# PubMedAssociation type
umls:C0345893Juvenile polyposis syndrome66Biomarker, GeneticVariation
umls:C0235974Pancreatic Carcinoma66Biomarker, GeneticVariation
umls:C0009404Colorectal Neoplasms15AlteredExpression, Biomarker, GeneticVariation
umls:C0279628Adenocarcinoma Of Esophagus5Biomarker, GeneticVariation
umls:C0796081Growth mental deficiency syndrome of Myhre4Biomarker, GeneticVariation
umls:C1832942Juvenile Polyposis with Hereditary Hemorrhagic Telangiectasia4Biomarker, GeneticVariation
umls:C1134719Carcinoma, Ductal, Breast3Biomarker
umls:C0038356Stomach Neoplasms2Biomarker, GeneticVariation
umls:C0206698Cholangiocarcinoma2Biomarker
umls:C0221357Brachydactyly1Biomarker
umls:C0009241Cognition Disorders1Biomarker
umls:C0376634Craniofacial Abnormalities1Biomarker
umls:C0011053Deafness1Biomarker
umls:C0023893Liver Cirrhosis, Experimental1Biomarker
umls:C0023897Liver Diseases, Parasitic1Biomarker
umls:C0026848Muscular Diseases1Biomarker
umls:C0027672Neoplastic Syndromes, Hereditary1GeneticVariation

Mutation level pathogenic information (ClinVar annotation)
Allele IDAA changeClinical significanceOriginPhenotype IDs
36200W509RPathogenicNot providedGeneReviews:NBK1469
MedGen:C0345893
OMIM:174900
Orphanet:ORPHA2929
SNOMED CT:9273005
185455Q516RUncertain significanceGermlineMedGen:C0027672
SNOMED CT:699346009

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Pharmacological information for SMAD4
Gene expression profile of anticancer drug treated cell-lines (CCLE)
Heatmap showing the correlation between gene expression and drug response across all the cell-lines. We chose the top 20 among 138 drugs.We used Pearson's correlation coefficient.
Drug information targeting mutLBSgene (Approved drugs only)
Drug statusDrugBank IDNameTypeDrug structure

Gene-centered ligand-gene interaction network

Ligands binding to mutated ligand binding site of SMAD4 go to BioLip
Ligand IDLigand short nameLigand long namePDB IDPDB namemutLBS
SO4SULFATE1dd1AK507 R515
SO4SULFATE1dd1BK507 R515
SO4SULFATE1dd1CK507 R515
SO4SULFATE1dd1BR416 Q442
SO4SULFATE1dd1CR416 Q442
SO4SULFATE1dd1CR496 R497 R502


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Conservation information for LBS of SMAD4
Multiple alignments for Q13485 in multiple species
LBSAA sequence# speciesSpecies
K507RMSFVKGWGPD4Homo sapiens, Bos taurus, Rattus norvegicus, Mus musculus
N369LGQLSNVHRTE4Homo sapiens, Bos taurus, Rattus norvegicus, Mus musculus
P514WGPDYPRQSIK4Homo sapiens, Bos taurus, Rattus norvegicus, Mus musculus
Q442VFDLRQCHRQM4Homo sapiens, Bos taurus, Rattus norvegicus, Mus musculus
Q446RQCHRQMQQQA4Homo sapiens, Bos taurus, Rattus norvegicus, Mus musculus
R372LSNVHRTEAIE4Homo sapiens, Bos taurus, Rattus norvegicus, Mus musculus
R416SYYLDREAGRA4Homo sapiens, Bos taurus, Rattus norvegicus, Mus musculus
R445LRQCHRQMQQQ4Homo sapiens, Bos taurus, Rattus norvegicus, Mus musculus
R496GVDDLRRLCIL4Homo sapiens, Bos taurus, Rattus norvegicus, Mus musculus
R497VDDLRRLCILR4Homo sapiens, Bos taurus, Rattus norvegicus, Mus musculus
R502RLCILRMSFVK4Homo sapiens, Bos taurus, Rattus norvegicus, Mus musculus
R515GPDYPRQSIKE4Homo sapiens, Bos taurus, Rattus norvegicus, Mus musculus
S368CLGQLSNVHRT4Homo sapiens, Bos taurus, Rattus norvegicus, Mus musculus


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