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Center for Computational Systems Medicine level2
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Fusion Gene Summary

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Fusion Gene Sample Information

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Fusion ORF Analysis

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Fusion Amino Acid Sequences

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Fusion Protein Functional Features

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Fusion Protein Structure

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pLDDT scores

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Ramachandran Plot of Fusion Protein Structure

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Fusion Protein-Protein Interaction

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Related drugs with this fusion protein

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Related disease with this fusion protein

Fusion Protein:PPP1R15A-HSPA1A

Fusion Protein Summary

check button Fusion gene summary
Fusion partner gene informationFusion gene name: PPP1R15A-HSPA1A
FusionPDB ID: 67834
FusionGDB2.0 ID: 67834
HgeneTgene
Gene symbol

PPP1R15A

HSPA1A

Gene ID

23645

3303

Gene nameprotein phosphatase 1 regulatory subunit 15Aheat shock protein family A (Hsp70) member 1A
SynonymsGADD34HEL-S-103|HSP70-1|HSP70-1A|HSP70-2|HSP70.1|HSP70.2|HSP70I|HSP72|HSPA1
Cytomap

19q13.33

6p21.33

Type of geneprotein-codingprotein-coding
Descriptionprotein phosphatase 1 regulatory subunit 15Agrowth arrest and DNA damage-inducible protein GADD34growth arrest and DNA-damage-inducible 34myeloid differentiation primary response protein MyD116 homologprotein phosphatase 1, regulatory (inhibitor) subuheat shock 70 kDa protein 1AHSP70-1/HSP70-2HSP70.1/HSP70.2Heat shock 70 kDa protein 1BHeat shock 70 kDa protein 2dnaK-type molecular chaperone HSP70-1epididymis secretory protein Li 103epididymis secretory sperm binding proteinheat shock 70 kDa pr
Modification date2020031320200327
UniProtAcc.

P0DMV8

Ensembl transtripts involved in fusion geneENST idsENST00000200453, ENST00000383389, 
ENST00000400040, ENST00000422919, 
ENST00000430065, ENST00000433487, 
ENST00000441618, ENST00000449876, 
ENST00000452298, ENST00000375651, 
ENST00000458062, ENST00000608703, 
Fusion gene scores for assessment (based on all fusion genes of FusionGDB 2.0)* DoF score5 X 6 X 2=606 X 15 X 4=360
# samples 611
** MAII scorelog2(6/60*10)=0log2(11/360*10)=-1.71049338280502
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
Context (manual curation of fusion genes in FusionPDB)

PubMed: PPP1R15A [Title/Abstract] AND HSPA1A [Title/Abstract] AND fusion [Title/Abstract]

Most frequent breakpoint (based on all fusion genes of FusionGDB 2.0)PPP1R15A(49379000)-HSPA1A(31785406), # samples:3
Anticipated loss of major functional domain due to fusion event.PPP1R15A-HSPA1A 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.
PPP1R15A-HSPA1A 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.
* 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
HgenePPP1R15A

GO:0032515

negative regulation of phosphoprotein phosphatase activity

11564868

HgenePPP1R15A

GO:0032516

positive regulation of phosphoprotein phosphatase activity

11564868

HgenePPP1R15A

GO:0034976

response to endoplasmic reticulum stress

12556489

HgenePPP1R15A

GO:0035308

negative regulation of protein dephosphorylation

11564868

HgenePPP1R15A

GO:0036496

regulation of translational initiation by eIF2 alpha dephosphorylation

12556489

HgenePPP1R15A

GO:1902310

positive regulation of peptidyl-serine dephosphorylation

11564868|12556489|21518769

HgenePPP1R15A

GO:1903917

positive regulation of endoplasmic reticulum stress-induced eIF2 alpha dephosphorylation

21518769

TgeneHSPA1A

GO:0006402

mRNA catabolic process

10205060

TgeneHSPA1A

GO:0006986

response to unfolded protein

10859165

TgeneHSPA1A

GO:0031396

regulation of protein ubiquitination

16809764

TgeneHSPA1A

GO:0031397

negative regulation of protein ubiquitination

12150907

TgeneHSPA1A

GO:0032436

positive regulation of proteasomal ubiquitin-dependent protein catabolic process

24613385

TgeneHSPA1A

GO:0033120

positive regulation of RNA splicing

20625543

TgeneHSPA1A

GO:0034605

cellular response to heat

24061851

TgeneHSPA1A

GO:0042026

protein refolding

15603737|21231916

TgeneHSPA1A

GO:0046034

ATP metabolic process

23921388

TgeneHSPA1A

GO:0050821

protein stabilization

21909508

TgeneHSPA1A

GO:0051131

chaperone-mediated protein complex assembly

10811660

TgeneHSPA1A

GO:0090084

negative regulation of inclusion body assembly

15603737|21231916

TgeneHSPA1A

GO:0097201

negative regulation of transcription from RNA polymerase II promoter in response to stress

9499401

TgeneHSPA1A

GO:1901029

negative regulation of mitochondrial outer membrane permeabilization involved in apoptotic signaling pathway

20625543

TgeneHSPA1A

GO:1902236

negative regulation of endoplasmic reticulum stress-induced intrinsic apoptotic signaling pathway

12150907|20625543

TgeneHSPA1A

GO:1902380

positive regulation of endoribonuclease activity

20625543


check buttonFusion gene breakpoints across PPP1R15A (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 HSPA1A (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 Gene Sample Information

check buttonFusion gene information from FusionGDB2.0.
check button Fusion gene information from two resources (ChiTars 5.0 and ChimerDB 4.0)
* All genome coordinats were lifted-over on hg19.
* Click on the break point to see the gene structure around the break point region using the UCSC Genome Browser.
SourceDiseaseSampleHgeneHchrHbpHstrandTgeneTchrTbpTstrand
ChiTaRS5.0N/AAV701720PPP1R15Achr19

49379000

+HSPA1Achr6

31785406

+
ChiTaRS5.0N/AAV702122PPP1R15Achr19

49379000

+HSPA1Achr6

31785406

+
ChiTaRS5.0N/AAV705476PPP1R15Achr19

49379000

+HSPA1Achr6

31785406

+


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Fusion ORF Analysis


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)
ENST00000200453PPP1R15Achr1949379000+ENST00000375651HSPA1Achr631785406+255922482061948580
ENST00000200453PPP1R15Achr1949379000+ENST00000458062HSPA1Achr631785406+230122482061948580
ENST00000200453PPP1R15Achr1949379000+ENST00000608703HSPA1Achr631785406+256522482061948580

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
ENST00000200453ENST00000375651PPP1R15Achr1949379000+HSPA1Achr631785406+0.0049011710.99509877
ENST00000200453ENST00000458062PPP1R15Achr1949379000+HSPA1Achr631785406+0.007022260.9929777
ENST00000200453ENST00000608703PPP1R15Achr1949379000+HSPA1Achr631785406+0.0048109920.99518895

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Fusion Amino Acid Sequences


check button For individual full-length fusion transcript sequence from FusionPDB, we ran ORFfinder and chose the longest ORF among the all predicted ones.
>FusionGDB ID_FusionGDB isoform ID_FGname_Hgene_Hchr_Hbp_Henst_Tgene_Tchr_Tbp_Tenst_length(fusion AA) seq_BP

>67834_67834_1_PPP1R15A-HSPA1A_PPP1R15A_chr19_49379000_ENST00000200453_HSPA1A_chr6_31785406_ENST00000375651_length(amino acids)=580AA_BP=
MADRTGAPAPGVTRSSQPPRHMAPGQAPHQATPWRDAHPFFLLSPVMGLLSRAWSRLRGLGPLEPWLVEAVKGAALVEAGLEGEARTPLA
IPHTPWGRRPEEEAEDSGGPGEDRETLGLKTSSSLPEAWGLLDDDDGMYGEREATSVPRGQGSQFADGQRAPLSPSLLIRTLQGSDKNPG
EEKAEEEGVAEEEGVNKFSYPPSHRECCPAVEEEDDEEAVKKEAHRTSTSALSPGSKPSTWVSCPGEEENQATEDKRTERSKGARKTSVS
PRSSGSDPRSWEYRSGEASEEKEEKAHKETGKGEAAPGPQSSAPAQRPQLKSWWCQPSDEEEGEVKALGAAEKDGEAECPPCIPPPSAFL
KAWVYWPGEDTEEEEDEEEDEDSDSGSDEEEGEAEASSSTPATGVFLKSWVYQPGEDTEEEEDEDSDTGSAEDEREAETSASTPPASAFL
KAWVYRPGEDTEEEEDEDVDSEDKEDDSEAALGEAESDPHPSHPDQRAHFRGWGYRPGKETEEEEAAEDWGEAEPCPFRVAIYVPGEKPP

--------------------------------------------------------------

>67834_67834_2_PPP1R15A-HSPA1A_PPP1R15A_chr19_49379000_ENST00000200453_HSPA1A_chr6_31785406_ENST00000458062_length(amino acids)=580AA_BP=
MADRTGAPAPGVTRSSQPPRHMAPGQAPHQATPWRDAHPFFLLSPVMGLLSRAWSRLRGLGPLEPWLVEAVKGAALVEAGLEGEARTPLA
IPHTPWGRRPEEEAEDSGGPGEDRETLGLKTSSSLPEAWGLLDDDDGMYGEREATSVPRGQGSQFADGQRAPLSPSLLIRTLQGSDKNPG
EEKAEEEGVAEEEGVNKFSYPPSHRECCPAVEEEDDEEAVKKEAHRTSTSALSPGSKPSTWVSCPGEEENQATEDKRTERSKGARKTSVS
PRSSGSDPRSWEYRSGEASEEKEEKAHKETGKGEAAPGPQSSAPAQRPQLKSWWCQPSDEEEGEVKALGAAEKDGEAECPPCIPPPSAFL
KAWVYWPGEDTEEEEDEEEDEDSDSGSDEEEGEAEASSSTPATGVFLKSWVYQPGEDTEEEEDEDSDTGSAEDEREAETSASTPPASAFL
KAWVYRPGEDTEEEEDEDVDSEDKEDDSEAALGEAESDPHPSHPDQRAHFRGWGYRPGKETEEEEAAEDWGEAEPCPFRVAIYVPGEKPP

--------------------------------------------------------------

>67834_67834_3_PPP1R15A-HSPA1A_PPP1R15A_chr19_49379000_ENST00000200453_HSPA1A_chr6_31785406_ENST00000608703_length(amino acids)=580AA_BP=
MADRTGAPAPGVTRSSQPPRHMAPGQAPHQATPWRDAHPFFLLSPVMGLLSRAWSRLRGLGPLEPWLVEAVKGAALVEAGLEGEARTPLA
IPHTPWGRRPEEEAEDSGGPGEDRETLGLKTSSSLPEAWGLLDDDDGMYGEREATSVPRGQGSQFADGQRAPLSPSLLIRTLQGSDKNPG
EEKAEEEGVAEEEGVNKFSYPPSHRECCPAVEEEDDEEAVKKEAHRTSTSALSPGSKPSTWVSCPGEEENQATEDKRTERSKGARKTSVS
PRSSGSDPRSWEYRSGEASEEKEEKAHKETGKGEAAPGPQSSAPAQRPQLKSWWCQPSDEEEGEVKALGAAEKDGEAECPPCIPPPSAFL
KAWVYWPGEDTEEEEDEEEDEDSDSGSDEEEGEAEASSSTPATGVFLKSWVYQPGEDTEEEEDEDSDTGSAEDEREAETSASTPPASAFL
KAWVYRPGEDTEEEEDEDVDSEDKEDDSEAALGEAESDPHPSHPDQRAHFRGWGYRPGKETEEEEAAEDWGEAEPCPFRVAIYVPGEKPP

--------------------------------------------------------------

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Fusion Protein Functional Features


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/chr19:49379000/chr6:31785406)
- 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 buttonMain function of each fusion partner protein. (from UniProt)
HgeneTgene
.HSPA1A

P0DMV8

FUNCTION: Might normally function as a transcriptional repressor. EWS-fusion-proteins (EFPS) may play a role in the tumorigenic process. They may disturb gene expression by mimicking, or interfering with the normal function of CTD-POLII within the transcription initiation complex. They may also contribute to an aberrant activation of the fusion protein target genes.FUNCTION: Molecular chaperone implicated in a wide variety of cellular processes, including protection of the proteome from stress, folding and transport of newly synthesized polypeptides, activation of proteolysis of misfolded proteins and the formation and dissociation of protein complexes. Plays a pivotal role in the protein quality control system, ensuring the correct folding of proteins, the re-folding of misfolded proteins and controlling the targeting of proteins for subsequent degradation. This is achieved through cycles of ATP binding, ATP hydrolysis and ADP release, mediated by co-chaperones. The co-chaperones have been shown to not only regulate different steps of the ATPase cycle, but they also have an individual specificity such that one co-chaperone may promote folding of a substrate while another may promote degradation. The affinity for polypeptides is regulated by its nucleotide bound state. In the ATP-bound form, it has a low affinity for substrate proteins. However, upon hydrolysis of the ATP to ADP, it undergoes a conformational change that increases its affinity for substrate proteins. It goes through repeated cycles of ATP hydrolysis and nucleotide exchange, which permits cycles of substrate binding and release. The co-chaperones are of three types: J-domain co-chaperones such as HSP40s (stimulate ATPase hydrolysis by HSP70), the nucleotide exchange factors (NEF) such as BAG1/2/3 (facilitate conversion of HSP70 from the ADP-bound to the ATP-bound state thereby promoting substrate release), and the TPR domain chaperones such as HOPX and STUB1 (PubMed:24012426, PubMed:26865365, PubMed:24318877). Maintains protein homeostasis during cellular stress through two opposing mechanisms: protein refolding and degradation. Its acetylation/deacetylation state determines whether it functions in protein refolding or protein degradation by controlling the competitive binding of co-chaperones HOPX and STUB1. During the early stress response, the acetylated form binds to HOPX which assists in chaperone-mediated protein refolding, thereafter, it is deacetylated and binds to ubiquitin ligase STUB1 that promotes ubiquitin-mediated protein degradation (PubMed:27708256). Regulates centrosome integrity during mitosis, and is required for the maintenance of a functional mitotic centrosome that supports the assembly of a bipolar mitotic spindle (PubMed:27137183). Enhances STUB1-mediated SMAD3 ubiquitination and degradation and facilitates STUB1-mediated inhibition of TGF-beta signaling (PubMed:24613385). Essential for STUB1-mediated ubiquitination and degradation of FOXP3 in regulatory T-cells (Treg) during inflammation (PubMed:23973223). Negatively regulates heat shock-induced HSF1 transcriptional activity during the attenuation and recovery phase period of the heat shock response (PubMed:9499401). Involved in the clearance of misfolded PRDM1/Blimp-1 proteins. Sequesters them in the cytoplasm and promotes their association with SYNV1/HRD1, leading to proteasomal degradation (PubMed:28842558). {ECO:0000269|PubMed:22528486, ECO:0000269|PubMed:23973223, ECO:0000269|PubMed:24318877, ECO:0000269|PubMed:24613385, ECO:0000269|PubMed:27137183, ECO:0000269|PubMed:27708256, ECO:0000269|PubMed:28842558, ECO:0000269|PubMed:9499401, ECO:0000303|PubMed:24012426, ECO:0000303|PubMed:26865365}.; FUNCTION: (Microbial infection) In case of rotavirus A infection, serves as a post-attachment receptor for the virus to facilitate entry into the cell. {ECO:0000269|PubMed:16537599}.

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, because of limited space for viewing, we only show the protein feature retention information belong to the 13 regional features. All retention annotation result can be downloaded at

download page

* Minus value of BPloci means that the break pointn is located before the CDS.
- Retained protein feature among the 13 regional features.
PartnerGeneHbpTbpENSTStrandBPexonTotalExonProtein feature loci*BPlociTotalLenProtein featureProtein feature note

- Not-retained protein feature among the 13 regional features.
PartnerGeneHbpTbpENSTStrandBPexonTotalExonProtein feature loci*BPlociTotalLenProtein featureProtein feature note
HgenePPP1R15Achr19:49379000chr6:31785406ENST00000200453+13112_1150675.0Compositional biasNote=Poly-Asp
HgenePPP1R15Achr19:49379000chr6:31785406ENST00000200453+13160_5030675.0Compositional biasNote=Glu-rich
HgenePPP1R15Achr19:49379000chr6:31785406ENST00000200453+13518_5210675.0Compositional biasNote=Poly-Pro
HgenePPP1R15Achr19:49379000chr6:31785406ENST00000200453+13661_6660675.0Compositional biasNote=Poly-Ala
HgenePPP1R15Achr19:49379000chr6:31785406ENST00000200453+1322_390675.0IntramembraneHelical
HgenePPP1R15Achr19:49379000chr6:31785406ENST00000200453+131_600675.0RegionNote=Required for localization in the endoplasmic reticulum
HgenePPP1R15Achr19:49379000chr6:31785406ENST00000200453+13337_3690675.0RepeatNote=1
HgenePPP1R15Achr19:49379000chr6:31785406ENST00000200453+13384_4170675.0RepeatNote=2
HgenePPP1R15Achr19:49379000chr6:31785406ENST00000200453+13427_4600675.0RepeatNote=3
HgenePPP1R15Achr19:49379000chr6:31785406ENST00000200453+13477_5100675.0RepeatNote=4
HgenePPP1R15Achr19:49379000chr6:31785406ENST00000200453+131_210675.0Topological domainCytoplasmic
HgenePPP1R15Achr19:49379000chr6:31785406ENST00000200453+1340_6740675.0Topological domainCytoplasmic


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Fusion Protein Structures

check button PDB and CIF files of the predicted fusion proteins
* Here we show the 3D structure of the fusion proteins using Mol*. AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Model confidence is shown from the pLDDT values per residue. pLDDT corresponds to the model’s prediction of its score on the local Distance Difference Test. It is a measure of local accuracy (from AlphfaFold website). To color code individual residues, we transformed individual PDB files into CIF format.
Fusion protein PDB link (fusion AA seq ID in FusionPDB)HgeneHchrHbpHstrandTgeneTchrTbpTstrandAA seqLen(AA seq)
PDB file >>>1237_PPP1R15A_49379000_HSPA1A_31785406_1237_PPP1R15A_49379000_HSPA1A_31785406_ranked_0.pdbPPP1R15A4937900049379000ENST00000608703HSPA1Achr631785406+
MADRTGAPAPGVTRSSQPPRHMAPGQAPHQATPWRDAHPFFLLSPVMGLLSRAWSRLRGLGPLEPWLVEAVKGAALVEAGLEGEARTPLA
IPHTPWGRRPEEEAEDSGGPGEDRETLGLKTSSSLPEAWGLLDDDDGMYGEREATSVPRGQGSQFADGQRAPLSPSLLIRTLQGSDKNPG
EEKAEEEGVAEEEGVNKFSYPPSHRECCPAVEEEDDEEAVKKEAHRTSTSALSPGSKPSTWVSCPGEEENQATEDKRTERSKGARKTSVS
PRSSGSDPRSWEYRSGEASEEKEEKAHKETGKGEAAPGPQSSAPAQRPQLKSWWCQPSDEEEGEVKALGAAEKDGEAECPPCIPPPSAFL
KAWVYWPGEDTEEEEDEEEDEDSDSGSDEEEGEAEASSSTPATGVFLKSWVYQPGEDTEEEEDEDSDTGSAEDEREAETSASTPPASAFL
KAWVYRPGEDTEEEEDEDVDSEDKEDDSEAALGEAESDPHPSHPDQRAHFRGWGYRPGKETEEEEAAEDWGEAEPCPFRVAIYVPGEKPP
580


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pLDDT score distribution

check button pLDDT score distribution of the predicted wild-type structures of two partner proteins from AlphaFold2
* AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100.
PPP1R15A_pLDDT.png
all structure
all structure
HSPA1A_pLDDT.png
all structure
all structure

check button pLDDT score distribution of the predicted fusion protein structures from AlphaFold2
* AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100.
all structure


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Ramachandran Plot of Fusion Protein Structure


check button Ramachandran plot of the torsional angles - phi (φ)and psi (ψ) - of the residues (amino acids) contained in this fusion protein peptide.
Fusion AA seq ID in FusionPDB and their Ramachandran plots

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Fusion Protein-Protein Interaction


check button Go to ChiPPI (Chimeric Protein-Protein interactions) to see the chimeric PPI interaction in

ChiPPI page.


check button Protein-protein interactors with each fusion partner protein in wild-type from validated records (BIOGRID-3.4.160)
GenePPI interactors


check button Protein-protein interactors based on sequence similarity (STRING)
GeneSTRING network
PPP1R15A
HSPA1A


check button - Retained interactions in fusion protein (protein functional feature from UniProt).
PartnerGeneHbpTbpENSTStrandBPexonTotalExonProtein feature loci*BPlociTotalLenStill interaction with


check button - Lost interactions due to fusion (protein functional feature from UniProt).
PartnerGeneHbpTbpENSTStrandBPexonTotalExonProtein feature loci*BPlociTotalLenInteraction lost with
HgenePPP1R15Achr19:49379000chr6:31785406ENST00000200453+13483_5550675.0KMT2A/MLL1
HgenePPP1R15Achr19:49379000chr6:31785406ENST00000200453+13337_5100675.0SMAD7
HgenePPP1R15Achr19:49379000chr6:31785406ENST00000200453+13536_5830675.0SMARCB1


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Related Drugs to PPP1R15A-HSPA1A


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 PPP1R15A-HSPA1A


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