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	Fusion Gene Summary
	Fusion Gene Breakpoints
	Tumorigenic MoA (Mechanism of Action) Scenarios of Fusion Geness
	Fusion Genomic Features
	Fusion Gene ORF Annotations
	Fusion Protein Retained/Non-Retained Functional Features
	Fusion Transcript Sequences
	Fusion Protein Sequences
	Personalized Fusion Protein Sequences
	Fusion Gene Expressed Samples
	Related Drugs

Fusion gene:RPN2_STK39 (FusionGDB2 ID:HG6185TG27347)

Fusion Gene Summary for RPN2_STK39

Fusion gene summary

Fusion gene information	Fusion gene name: RPN2_STK39
	Fusion gene ID: hg6185tg27347
		Hgene	Tgene
	Gene symbol	RPN2	STK39
	Gene ID	6185	27347
	Gene name	ribophorin II	serine/threonine kinase 39
	Synonyms	RIBIIR|RPN-II|RPNII|SWP1	DCHT|PASK|SPAK
	Cytomap	20q11.23	2q24.3
	Type of gene	protein-coding	protein-coding
	Description	dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 2dolichyl-diphosphooligosaccharide--protein glycosyltransferase 63 kDa subunitoligosaccharyltransferase complex subunit (non-catalytic)ribophorin-2	STE20/SPS1-related proline-alanine-rich protein kinaseSTE20/SPS1 homologSte20-like protein kinaseproline-alanine-rich STE20-related kinaseserine threonine kinase 39 (STE20/SPS1 homolog, yeast)serine/threonine-protein kinase 39small intestine SPAK-li
	Modification date	20240407	20240411
	UniProtAcc	.	.
	Ensembl transtripts involved in fusion gene	ENST00000470352, ENST00000237530,  ENST00000373622,
Fusion gene scores	* DoF score	* DoF score (Degree of Frequency) = # partners X # break points X # disease types 18 X 14 X 15=3780	* DoF score (Degree of Frequency) = # partners X # break points X # disease types 14 X 15 X 17=3570
	# samples	52	32
	** MAII score	** MAII score (Major Active Isofusion Index) = log2(# samples/DoF score*10) log2(52/3780*10)=-2.86180270607998 possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs). DoF>8 and MAII<0	** MAII score (Major Active Isofusion Index) = log2(# samples/DoF score*10) log2(32/3570*10)=-3.4797802640291 possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs). DoF>8 and MAII<0
Context	PubMed: RPN2 [Title/Abstract] AND STK39 [Title/Abstract] AND fusion [Title/Abstract]
Most frequent breakpoint	RPN2(35858462)-STK39(169023917), # samples:1

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Fusion Gene Breakpoints for RPN2_STK39

RNA-seq based exon junction arranged fusion gene breakpoints from 8 resources (TCGA, CCLE, cBioPortal, GenBank, ChimerDB, ChimerKB, ChildHoodFusions, and GTEx). For the expressed sample information, go to Fusion Gene Sample section.

DNA-seq based exon junction arranged fusion gene breakpoints from dbVar. For the expressed sample information, go to Fusion Gene Sample section.

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Tumorigenic MoA (Mechanism of Action) Scenarios of Fusion Genes for RPN2_STK39

To generate these tumorigenic scenario annotations, we implemented a deduction-first, retrieval-later computational framework. The pipeline first applies rule-guided reasoning across ten core mechanistic categories (M1–M10) derived from fusion gene biology to infer candidate mechanisms, tumorigenic scenarios, targeting points, and targeting backgrounds. To ensure empirical accountability, a governed Python workflow retrieves literature candidates via NCBI E-utilities and Europe PMC using tiered searches. Using JSON Schema-constrained LLM evidence judges (GPT-5.6 Luna and Terra), retrieved articles are evaluated for specificity and confidence without de novo PMID generation. This produces two distinct versions: a strict version restricted to high- or medium-confidence fusion-specific evidence, and an extended version incorporating broader gene-, pathway-, and contextual evidence.

* We have 10 tumorigenic mechanism categories of fusion genes as shown below.

Constitutively Active Kinases, Catalytic Domain Dysregulation, & Transmembrane Ligand Fusions	Aberrant Chimeric Transcription Factor / Fusion Transcription Factor Activity	Epigenetic Reprogramming / Histone Modifier Dysregulation	Chromatin Remodeling Dysregulation	Condensate-Driven Transcriptional Rewiring / LLP	Promoter / Enhancer Hijacking	Dominant-Negative Antagonism	Cell Cycle / Checkpoint Bypass / RNA Processing Dysregulation	Subcellular Mislocalization / Spatial Dysregulation	Nuclear Body / Sub-organellar Architecture Disruption & Differentiation Blockade

* Strict version: Restricted to high- or medium-confidence fusion-specific evidence.

Fusion Gene Name

Mechanism Category

Mechanism PubMed

Tumorigenic Scenarios

Tumorigenic Scenario PubMed

Targeting Points

Targeting PubMed

Mechanism Background

Mechanism Background PubMed

* Extended version: Includes all strict-level fusion evidence plus broader gene-, pathway-, and low-confidence contextual evidence.

Fusion Gene Name

Mechanism Category

Mechanism PubMed

Tumorigenic Scenarios

Tumorigenic Scenario PubMed

Targeting Points

Targeting PubMed

Mechanism Background

Mechanism Background PubMed

Main function of each fusion partner protein. (from UniProt)

Hgene	Tgene
.	.

Gene ontology of each fusion partner gene with evidence of Inferred from Direct Assay (IDA) from Entrez

Partner	Gene	GO ID	GO term	PubMed ID
Hgene	RPN2	GO:0006487	protein N-linked glycosylation	9642163|31831667
Tgene	STK39	GO:0006884	cell volume homeostasis	36318922
Tgene	STK39	GO:0007165	signal transduction	24393035
Tgene	STK39	GO:0018105	peptidyl-serine phosphorylation	24393035
Tgene	STK39	GO:0018107	peptidyl-threonine phosphorylation	24393035
Tgene	STK39	GO:0035556	intracellular signal transduction	24393035
Tgene	STK39	GO:0070294	renal sodium ion absorption	18270262
Tgene	STK39	GO:0071474	cellular hyperosmotic response	36318922
Tgene	STK39	GO:0071476	cellular hypotonic response	24393035
Tgene	STK39	GO:1901017	negative regulation of potassium ion transmembrane transporter activity	24393035
Tgene	STK39	GO:1901380	negative regulation of potassium ion transmembrane transport	24393035
Tgene	STK39	GO:1905408	negative regulation of creatine transmembrane transporter activity	25531585
Tgene	STK39	GO:2000650	negative regulation of sodium ion transmembrane transporter activity	25531585

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Fusion Genomic Features for RPN2_STK39

FusionAI prediction of the potential fusion gene breakpoint based on the pre-mature RNA sequence context (+/- 5kb of individual partner genes, total 20kb length sequence) of In-frame fusion genes. FusionAI is a fusion gene breakpoint classifier based on convolutional neural network by comparing the fusion positive and negative sequence context of ~ 20K fusion gene data. From here, we can have the relative potentency of the 20K genomic sequence how individual sequnce will be likely used as the gene fusion breakpoints.

Hgene	Hchr	Hbp	Hstrand	Tgene	Tchr	Tbp	Tstrand	1-p	p (fusion gene breakpoint)
RPN2	chr20	35858462	+	STK39	chr2	169023917	-	2.33e-03	9.98e-01

FusionAI prediction of the potential fusion gene breakpoint based on the pre-mature RNA sequence context (+/- 5kb of individual partner genes, total 20kb length sequence) of 5UTR-3CSD fusion genes (N-truncated cases).

Hgene

Hchr

Hbp

Hstrand

Tgene

Tchr

Tbp

Tstrand

1-p

p (fusion gene breakpoint)

FusionAI prediction of the potential fusion gene breakpoint based on the pre-mature RNA sequence context (+/- 5kb of individual partner genes, total 20kb length sequence) of 5CDS-3UTR fusion genes (C-truncated cases).

Hgene

Hchr

Hbp

Hstrand

Tgene

Tchr

Tbp

Tstrand

1-p

p (fusion gene breakpoint)

Distribution of six genomic regulatory feature tracks across a ±5 kb window centered on the fusion breakpoints. We input the breakpoint sequences into AlphaGenome and obtained predicted genome tracks at single-base-pair resolution for each modality by running a single forward pass over the reference sequence. Specifically, for each breakpoint, AlphaGenome processed and returned predicted track data across diverse modalities, which were then averaged across all tracks within each output type and visualized across the ±5 kb window. The left panel shows the 5'-gene breakpoint ±5 kb area, and the right panel shows the 3'-gene breakpoint area, with tracks grouped by category: chromatin accessibility (DNase-seq, ATAC-seq), active transcription (RNA-seq, CAGE), and chromatin binding (ChIP-Histone, ChIP-TF).

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Fusion Gene ORF Annotations for RPN2_STK39

Open reading frame (ORF) analsis of fusion genes based on Ensembl gene isoform structure. * Click on the break point to see the gene structure around the break point region using the UCSC Genome Browser.

ORFfinder Result Based On The Fusion Transcript Sequences of the In-frame Fusion Genes.

ORFfinder Result Based On The Fusion Transcript Sequences of the 5UTR-3CDS Fusion Genes for N-Truncated Protein Search.

ORFfinder Result Based On The Fusion Transcript Sequences of the 5CDS-3UTR Fusion Genes for C-Truncated Protein Search.

DeepORF 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.

DeepORF Prediction of The Coding Potential Based on The Fusion Transcript Sequence of 5UTR-3CDS Fusion Genes (Potential N-Truncated Proteins).

DeepORF Prediction of The Coding Potential Based on The Fusion Transcript Sequence of 5CDS-3UTR Fusion Genes (Potential C-Truncated Proteins).

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Fusion Protein Retained/Non-Retained Functional Features for RPN2_STK39

Protein Level Annotation from FGviewer * Retention 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.

- In-frame and retained protein feature among the 13 regional features (visualization across fusion protein length).

- In-frame and not-retained protein feature among the 13 regional features.

- Retained PPIs in in-frame fusion.

Partner

Hgene

Hbp

Tgene

Tbp

ENST

UniProt

Strand

BPexon

TotalExon

Protein feature loci

*BPloci

TotalLen

Still interaction with

- Lost PPIs in in-frame fusion.

Partner

Hgene

Hbp

Tgene

Tbp

ENST

UniProt

Strand

BPexon

TotalExon

Protein feature loci

*BPloci

TotalLen

Interaction lost with

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Fusion Transcript Sequence for RPN2_STK39

In-frame Fusion Transcript Sequences.

N-Truncated Transcript (5UTR-3CDS) Sequences

C-Truncated Transcript (5CDS-3UTR) Sequences

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Fusion Protein Sequence for RPN2_STK39

In-frame Fusion Protein Sequences.

N-Truncated Protein (5UTR-3CDS) Sequences

C-Truncated Protein (5CDS-3UTR) Sequences

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Personalized Fusion Protein Sequence for RPN2_STK39

TCGA Kinase/DNA-binding Domain Mutated Fusion Protein Sequences

CCLE Kinase/DNA-binding Domain Mutated Fusion Protein Sequences

TCGA All Mutated Fusion Protein Sequences

CCLE All Mutated Fusion Protein Sequences

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Fusion Gene Exprssed Samples for RPN2_STK39

RNA-seq based fusion gene expressed samples.

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Related Drugs for RPN2_STK39

PubMed Abstract Search With ['A-B' AND 'drug'], ['A::B' AND 'drug'] * For more details on the Studied, Reported, Approved Drugs targeting this fusion gene, Go to FusionPub.

Drugs targeting genes involved in this fusion gene. (DrugBank Version 5.1.8 2021-05-08)