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Center for Computational Systems Medicine
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Fusion Gene and Fusion Protein Summary

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Fusion Amino Acid Sequences (multiple BPs and multiple gene isoforms)

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Fusion Protein Breakpoint Sequences - (for the Screening of the FusionNeoAntigens)

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Potential FusionNeoAntigens in HLA I - (netMHCpan v4.1 + deepHLApan v1.1)

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Potential FusionNeoAntigens in HLA II - (netMHCIIpan v4.1)

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Fusion Breakpoint 14 AA Peptide Structure - (RoseTTAFold)

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Filtering FusionNeoAntigens Through Checking the Interaction with HLAs in 3D - (Glide)

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Vaccine Design for the FusionNeoAntigens (RNA/protein sequences)

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Potential target of CAR-T therapy development

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Information on the samples that have these potential fusion neoantigens

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Fusion Protein Targeting Drugs - (Manual Curation)

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Fusion Protein Related diseases - (Manual Curation)

Fusion Protein:CTSB-TG

Fusion Gene and Fusion Protein Summary

check button Fusion gene summary
Fusion partner gene informationFusion gene name: CTSB-TG
FusionPDB ID: 20477
FusionGDB2.0 ID: 20477
HgeneTgene
Gene symbol

CTSB

TG

Gene ID

1508

7038

Gene namecathepsin Bthyroglobulin
SynonymsAPPS|CPSB|RECEUPAITD3|TGN
Cytomap

8p23.1

8q24.22

Type of geneprotein-codingprotein-coding
Descriptioncathepsin BAPP secretaseamyloid precursor protein secretasecathepsin B1cysteine proteaseepididymis secretory sperm binding proteinthyroglobulin
Modification date2020031320200313
UniProtAcc

P07858

Main function of 5'-partner protein: FUNCTION: Thiol protease which is believed to participate in intracellular degradation and turnover of proteins (PubMed:12220505). Cleaves matrix extracellular phosphoglycoprotein MEPE (PubMed:12220505). Involved in the solubilization of cross-linked TG/thyroglobulin in the thyroid follicle lumen (By similarity). Has also been implicated in tumor invasion and metastasis (PubMed:3972105). {ECO:0000250|UniProtKB:P10605, ECO:0000269|PubMed:12220505, ECO:0000269|PubMed:3972105}.

TIAF1

Main function of 5'-partner protein: 115
Ensembl transtripts involved in fusion geneENST idsENST00000415599, ENST00000345125, 
ENST00000353047, ENST00000434271, 
ENST00000453527, ENST00000530640, 
ENST00000531089, ENST00000533455, 
ENST00000534510, ENST00000525076, 
ENST00000220616, ENST00000377869, 
ENST00000519543, ENST00000542445, 
ENST00000522523, 
Fusion gene scores for assessment (based on all fusion genes of FusionGDB 2.0)* DoF score24 X 19 X 10=456027 X 26 X 8=5616
# samples 2529
** MAII scorelog2(25/4560*10)=-4.18903382439002
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
log2(29/5616*10)=-4.27541813028963
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
Fusion gene context

PubMed: CTSB [Title/Abstract] AND TG [Title/Abstract] AND fusion [Title/Abstract]

Fusion neoantigen context

PubMed: CTSB [Title/Abstract] AND TG [Title/Abstract] AND neoantigen [Title/Abstract]

Most frequent breakpoint (based on all fusion genes of FusionGDB 2.0)CTSB(11705575)-TG(134042125), # samples:1
CTSB(11705577)-TG(134042123), # samples:1
Anticipated loss of major functional domain due to fusion event.CTSB-TG seems lost the major protein functional domain in Hgene partner, which is a CGC by not retaining the major functional domain in the partially deleted in-frame ORF.
CTSB-TG seems lost the major protein functional domain in Hgene partner, which is a essential gene by not retaining the major functional domain in the partially deleted in-frame ORF.
CTSB-TG seems lost the major protein functional domain in Hgene partner, which is a IUPHAR drug target due to the frame-shifted ORF.
* DoF score (Degree of Frequency) = # partners X # break points X # cancer types
** MAII score (Major Active Isofusion Index) = log2(# samples/DoF score*10)

check button Gene ontology of each fusion partner gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
HgeneCTSB

GO:0006508

proteolysis

7890620|8811434

HgeneCTSB

GO:0030574

collagen catabolic process

22952693

HgeneCTSB

GO:0051603

proteolysis involved in cellular protein catabolic process

22952693



check button Four levels of functional features of fusion genes
Go to FGviewer search page for the most frequent breakpoint (https://ccsmweb.uth.edu/FGviewer/chr8:11705575/chr8:134042125)
- FGviewer provides the online visualization of the retention search of the protein functional features across DNA, RNA, protein, and pathological levels.
- How to search
1. Put your fusion gene symbol.
2. Press the tab key until there will be shown the breakpoint information filled.
4. Go down and press 'Search' tab twice.
4. Go down to have the hyperlink of the search result.
5. Click the hyperlink.
6. See the FGviewer result for your fusion gene.
FGviewer

check buttonRetention analysis results of each fusion partner protein across 39 protein features of UniProt such as six molecule processing features, 13 region features, four site features, six amino acid modification features, two natural variation features, five experimental info features, and 3 secondary structure features, are available here.

check buttonFusion gene breakpoints across CTSB (5'-gene)
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
all structure

check buttonFusion gene breakpoints across TG (3'-gene)
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
all structure


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Fusion Amino Acid Sequences


check buttonFusion information from ORFfinder translation from full-length transcript sequence from FusionPDB.
HenstTenstHgeneHchrHbpHstrandTgeneTchrTbpTstrandSeq length
(transcript)
BP loci
(transcript)
Predicted start
(transcript)
Predicted stop
(transcript)
Seq length
(amino acids)
ENST00000434271CTSBchr811705575-ENST00000377869TGchr8134042125+20867702381980580
ENST00000434271CTSBchr811705575-ENST00000220616TGchr8134042125+20847702381980580
ENST00000434271CTSBchr811705575-ENST00000542445TGchr8134042125+20147702381980580
ENST00000434271CTSBchr811705575-ENST00000519543TGchr8134042125+20907702381980580
ENST00000530640CTSBchr811705575-ENST00000377869TGchr8134042125+19856691371879580
ENST00000530640CTSBchr811705575-ENST00000220616TGchr8134042125+19836691371879580
ENST00000530640CTSBchr811705575-ENST00000542445TGchr8134042125+19136691371879580
ENST00000530640CTSBchr811705575-ENST00000519543TGchr8134042125+19896691371879580
ENST00000533455CTSBchr811705575-ENST00000377869TGchr8134042125+20677512191961580
ENST00000533455CTSBchr811705575-ENST00000220616TGchr8134042125+20657512191961580
ENST00000533455CTSBchr811705575-ENST00000542445TGchr8134042125+19957512191961580
ENST00000533455CTSBchr811705575-ENST00000519543TGchr8134042125+20717512191961580
ENST00000434271CTSBchr811705577-ENST00000377869TGchr8134042123+20887708191982387
ENST00000434271CTSBchr811705577-ENST00000220616TGchr8134042123+20867708191982387
ENST00000434271CTSBchr811705577-ENST00000542445TGchr8134042123+20167708191982387
ENST00000434271CTSBchr811705577-ENST00000519543TGchr8134042123+20927708191982387
ENST00000530640CTSBchr811705577-ENST00000377869TGchr8134042123+19876697181881387
ENST00000530640CTSBchr811705577-ENST00000220616TGchr8134042123+19856697181881387
ENST00000530640CTSBchr811705577-ENST00000542445TGchr8134042123+19156697181881387
ENST00000530640CTSBchr811705577-ENST00000519543TGchr8134042123+19916697181881387
ENST00000533455CTSBchr811705577-ENST00000377869TGchr8134042123+20697518001963387
ENST00000533455CTSBchr811705577-ENST00000220616TGchr8134042123+20677518001963387
ENST00000533455CTSBchr811705577-ENST00000542445TGchr8134042123+19977518001963387
ENST00000533455CTSBchr811705577-ENST00000519543TGchr8134042123+20737518001963387

check buttonDeepORF prediction of the coding potential based on the fusion transcript sequence of in-frame fusion genes. DeepORF is a coding potential classifier based on convolutional neural network by comparing the real Ribo-seq data. If the no-coding score < 0.5 and coding score > 0.5, then the in-frame fusion transcript is predicted as being likely translated.
HenstTenstHgeneHchrHbpHstrandTgeneTchrTbpTstrandNo-coding scoreCoding score
ENST00000434271ENST00000377869CTSBchr811705575-TGchr8134042125+0.0170314540.9829685
ENST00000434271ENST00000220616CTSBchr811705575-TGchr8134042125+0.0168229120.9831771
ENST00000434271ENST00000542445CTSBchr811705575-TGchr8134042125+0.0187411230.9812588
ENST00000434271ENST00000519543CTSBchr811705575-TGchr8134042125+0.0177929030.98220706
ENST00000530640ENST00000377869CTSBchr811705575-TGchr8134042125+0.0216038920.9783961
ENST00000530640ENST00000220616CTSBchr811705575-TGchr8134042125+0.021409660.97859037
ENST00000530640ENST00000542445CTSBchr811705575-TGchr8134042125+0.0233076440.97669244
ENST00000530640ENST00000519543CTSBchr811705575-TGchr8134042125+0.0219891540.97801083
ENST00000533455ENST00000377869CTSBchr811705575-TGchr8134042125+0.0208676330.97913235
ENST00000533455ENST00000220616CTSBchr811705575-TGchr8134042125+0.0206716360.97932833
ENST00000533455ENST00000542445CTSBchr811705575-TGchr8134042125+0.0227362590.97726375
ENST00000533455ENST00000519543CTSBchr811705575-TGchr8134042125+0.0215380640.978462
ENST00000434271ENST00000377869CTSBchr811705577-TGchr8134042123+0.0159486120.9840514
ENST00000434271ENST00000220616CTSBchr811705577-TGchr8134042123+0.0159415640.98405844
ENST00000434271ENST00000542445CTSBchr811705577-TGchr8134042123+0.0160439850.98395604
ENST00000434271ENST00000519543CTSBchr811705577-TGchr8134042123+0.0158959660.98410404
ENST00000530640ENST00000377869CTSBchr811705577-TGchr8134042123+0.0159923290.98400766
ENST00000530640ENST00000220616CTSBchr811705577-TGchr8134042123+0.0160826170.98391736
ENST00000530640ENST00000542445CTSBchr811705577-TGchr8134042123+0.0157477280.9842523
ENST00000530640ENST00000519543CTSBchr811705577-TGchr8134042123+0.0154835140.98451644
ENST00000533455ENST00000377869CTSBchr811705577-TGchr8134042123+0.0174798780.98252004
ENST00000533455ENST00000220616CTSBchr811705577-TGchr8134042123+0.0174990610.982501
ENST00000533455ENST00000542445CTSBchr811705577-TGchr8134042123+0.0173023250.98269767
ENST00000533455ENST00000519543CTSBchr811705577-TGchr8134042123+0.0171465630.9828535

check button Predicted full-length fusion amino acid sequences. For individual full-length fusion transcript sequence from FusionPDB, we ran ORFfinder and chose the longest ORF among all the predicted ones.

Get the fusion protein sequences from here.

Fusion protein sequence information is available in the fasta format.
>FusionGDB ID_FusionGDB isoform ID_FGname_Hgene_Hchr_Hbp_Henst_Tgene_Tchr_Tbp_Tenst_length(fusion AA) seq_BP

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Fusion Protein Breakpoint Sequences for CTSB-TG

check button +/-13 AA sequence from the breakpoints of the fusion protein sequences.
HgeneHchrHbpTgeneTchrTbpLength(fusion protein)BP in fusion proteinPeptide
CTSBchr811705575TGchr8134042125669177KGLVSGGLYESHVVQTHIRGFGGDPR
CTSBchr811705575TGchr8134042125751177KGLVSGGLYESHVVQTHIRGFGGDPR
CTSBchr811705575TGchr8134042125770177KGLVSGGLYESHVVQTHIRGFGGDPR

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Potential FusionNeoAntigen Information of CTSB-TG in HLA I

check button Multiple sequence alignments of the potential FusionNeoAntigens per fusion breakpoints. If the MSA is empty, then it means that there were predicted fusion neoantigens in this fusion breakpoint, but those predicted fusion neoantigens were not across the breakpoint, which is not fusion-specific.
CTSB-TG_11705575_134042125.msa

check button Potential FusionNeoAntigen Information
* We used NetMHCpan v4.1 (%rank<0.5) and deepHLApan v1.1 (immunogenic score>0.5)
Fusion geneHchrHbpTgeneTchrTbpHLA IFusionNeoAntigen peptideBinding scoreImmunogenic scoreNeoantigen start (at BP 13)Neoantigen end (at BP 13)
CTSB-TGchr811705575chr8134042125770HLA-B38:01SHVVQTHI0.99130.68621018
CTSB-TGchr811705575chr8134042125770HLA-B15:37SHVVQTHI0.99050.57711018
CTSB-TGchr811705575chr8134042125770HLA-B38:02SHVVQTHI0.98970.69981018
CTSB-TGchr811705575chr8134042125770HLA-B18:01YESHVVQTH0.99310.6521817
CTSB-TGchr811705575chr8134042125770HLA-B44:03YESHVVQTH0.98660.7521817
CTSB-TGchr811705575chr8134042125770HLA-A32:13VVQTHIRGF0.61220.75151221
CTSB-TGchr811705575chr8134042125770HLA-B38:01SHVVQTHIRGF0.9860.75461021
CTSB-TGchr811705575chr8134042125770HLA-B51:07ESHVVQTHI0.99390.5104918
CTSB-TGchr811705575chr8134042125770HLA-C15:04VVQTHIRGF0.81430.68661221
CTSB-TGchr811705575chr8134042125770HLA-C12:04VVQTHIRGF0.12680.97671221
CTSB-TGchr811705575chr8134042125770HLA-B38:05SHVVQTHI0.99130.68621018
CTSB-TGchr811705575chr8134042125770HLA-B18:07YESHVVQTH0.99580.6095817
CTSB-TGchr811705575chr8134042125770HLA-B18:04YESHVVQTH0.99580.6687817
CTSB-TGchr811705575chr8134042125770HLA-B18:06YESHVVQTH0.9940.6523817
CTSB-TGchr811705575chr8134042125770HLA-B18:05YESHVVQTH0.99310.6521817
CTSB-TGchr811705575chr8134042125770HLA-B18:03YESHVVQTH0.98990.641817
CTSB-TGchr811705575chr8134042125770HLA-B44:26YESHVVQTH0.98660.7521817
CTSB-TGchr811705575chr8134042125770HLA-B44:13YESHVVQTH0.98660.7521817
CTSB-TGchr811705575chr8134042125770HLA-B44:07YESHVVQTH0.98660.7521817
CTSB-TGchr811705575chr8134042125770HLA-B18:11YESHVVQTH0.98140.6004817
CTSB-TGchr811705575chr8134042125770HLA-B15:24VVQTHIRGF0.91360.52321221
CTSB-TGchr811705575chr8134042125770HLA-A32:01VVQTHIRGF0.86390.62091221
CTSB-TGchr811705575chr8134042125770HLA-C15:09VVQTHIRGF0.81430.68661221
CTSB-TGchr811705575chr8134042125770HLA-B35:20YESHVVQTH0.7420.712817
CTSB-TGchr811705575chr8134042125770HLA-B15:53YESHVVQTH0.66450.6966817
CTSB-TGchr811705575chr8134042125770HLA-B48:02YESHVVQTH0.51820.6398817
CTSB-TGchr811705575chr8134042125770HLA-C02:10VVQTHIRGF0.20130.94341221
CTSB-TGchr811705575chr8134042125770HLA-C02:02VVQTHIRGF0.20130.94341221
CTSB-TGchr811705575chr8134042125770HLA-C16:02VVQTHIRGF0.13980.97421221
CTSB-TGchr811705575chr8134042125770HLA-A25:01HVVQTHIRGF0.97430.72981121
CTSB-TGchr811705575chr8134042125770HLA-B38:05SHVVQTHIRGF0.9860.75461021

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Potential FusionNeoAntigen Information of CTSB-TG in HLA II

check button Multiple sequence alignments of the potential FusionNeoAntigens per fusion breakpoints. If the MSA is empty, then it means that there were predicted fusion neoantigens in this fusion breakpoint, but those predicted fusion neoantigens were not across the breakpoint, which is not fusion-specific.

check button Potential FusionNeoAntigen Information
* We used NetMHCIIpan v4.1 (%rank<0.5).
Fusion geneHchrHbpTgeneTchrTbpHLA IIFusionNeoAntigen peptideNeoantigen start (at BP 13)Neoantigen end (at BP 13)

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Fusion breakpoint peptide structures of CTSB-TG

check button3D structures of the fusion breakpoint peptide of 14AA sequence that have potential fusion neoantigens
* The minimum length of the amino acid sequence in RoseTTAFold is 14AA. Here, we predicted the 14AA fusion protein breakpoint sequence not the fusion neoantigen peptide, which is shorter than 14 AA.
File nameBPseqHgeneTgeneHchrHbpTchrTbpAAlen
2973GLYESHVVQTHIRGCTSBTGchr811705575chr8134042125770

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Filtering FusionNeoAntigens Through Checking the Interaction with HLAs in 3D of CTSB-TG

check buttonVirtual screening between 25 HLAs (from PDB) and FusionNeoAntigens
* We used Glide to predict the interaction between HLAs and neoantigens.
HLA allelePDB IDFile nameBPseqDocking scoreGlide score
HLA-B14:023BVN2973GLYESHVVQTHIRG-7.15543-7.26883
HLA-B14:023BVN2973GLYESHVVQTHIRG-4.77435-5.80965
HLA-B52:013W392973GLYESHVVQTHIRG-6.80875-6.92215
HLA-B52:013W392973GLYESHVVQTHIRG-4.20386-5.23916
HLA-A11:014UQ22973GLYESHVVQTHIRG-7.5194-8.5547
HLA-A11:014UQ22973GLYESHVVQTHIRG-6.9601-7.0735
HLA-A24:025HGA2973GLYESHVVQTHIRG-7.52403-7.63743
HLA-A24:025HGA2973GLYESHVVQTHIRG-5.82433-6.85963
HLA-B27:056PYJ2973GLYESHVVQTHIRG-3.28285-4.31815
HLA-B44:053DX82973GLYESHVVQTHIRG-5.91172-6.94702
HLA-B44:053DX82973GLYESHVVQTHIRG-4.24346-4.35686

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Vaccine Design for the FusionNeoAntigens of CTSB-TG

check button mRNA and peptide sequences of FusionNeoAntigens that have potential interaction with HLA-Is.
Fusion geneHchrHbpTchrTbpStart in +/-13AAEnd in +/-13AAFusionNeoAntigen peptide sequenceFusionNeoAntigen RNA sequence
CTSB-TGchr811705575chr81340421251018SHVVQTHICCCATGTAGTGCAGACCCACATCC
CTSB-TGchr811705575chr81340421251021SHVVQTHIRGFCCCATGTAGTGCAGACCCACATCCGAGGATTTG
CTSB-TGchr811705575chr81340421251121HVVQTHIRGFATGTAGTGCAGACCCACATCCGAGGATTTG
CTSB-TGchr811705575chr81340421251221VVQTHIRGFTAGTGCAGACCCACATCCGAGGATTTG
CTSB-TGchr811705575chr8134042125817YESHVVQTHATGAATCCCATGTAGTGCAGACCCACA
CTSB-TGchr811705575chr8134042125918ESHVVQTHIAATCCCATGTAGTGCAGACCCACATCC

check button mRNA and peptide sequences of FusionNeoAntigens that have potential interaction with HLA-IIs.
Fusion geneHchrHbpTchrTbpStart in +/-13AAEnd in +/-13AAFusionNeoAntigen peptideFusionNEoAntigen RNA sequence

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Information of the samples that have these potential fusion neoantigens of CTSB-TG

check button These samples were reported as having these fusion breakpoints. For individual breakpoints, we checked the open reading frames considering multiple gene isoforms and chose the in-frame fusion genes only. Then, we made fusion protein sequences and predicted the fusion neoantigens. These fusion-positive samples may have these potential fusion neoantigens.
Cancer typeFusion geneHchrHbpHenstTchrTbpTenstSample
Non-CancerCTSB-TGchr811705575ENST00000434271chr8134042125ENST00000220616TCGA-EL-A3TA-11A

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Potential target of CAR-T therapy development for CTSB-TG

check button Predicted 3D structure. We used RoseTTAFold.

check buttonRetention analysis result of each fusion partner protein across 39 protein features of UniProt such as six molecule processing features, 13 region features, four site features, six amino acid modification features, two natural variation features, five experimental info features, and 3 secondary structure features. Here, to provide the retention of the transmembrane domain, we only show the protein feature retention information of those transmembrane features


* Minus value of BPloci means that the break point is located before the CDS.
- In-frame and retained 'Transmembrane'.
PartnerGeneHbpTbpENSTStrandBPexonTotalExonProtein feature loci*BPlociTotalLenProtein featureProtein feature note

check button Subcellular localization prediction of the transmembrane domain retained fusion proteins
* We used DeepLoc 1.0. The order of the X-axis of the barplot is as follows: Entry_ID, Localization, Type, Nucleus, Cytoplasm, Extracellular, Mitochondrion, Cell_membrane, Endoplasmic_reticulum, Plastid, Golgi.apparatus, Lysosome.Vacuole, Peroxisome. Y-axis is the output score of DeepLoc. Clicking the image will open a new tab with a large image.
HgeneHchrHbpHenstTgeneTchrTbpTenstDeepLoc result

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Related Drugs to CTSB-TG

check button Drugs used for this fusion-positive patient.
(Manual curation of PubMed, 04-30-2022 + MyCancerGenome)
HgeneTgeneDrugSourcePMID

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Related Diseases to CTSB-TG

check button Diseases that have this fusion gene.
(Manual curation of PubMed, 04-30-2022 + MyCancerGenome)
HgeneTgeneDiseaseSourcePMID

check button Diseases associated with fusion partners.
(DisGeNet 4.0)
PartnerGeneDisease IDDisease name# pubmedsSource