# Bioinformatic Prediction of Activation States in Molecular Network Pathways of Eukaryotic Initiation Factor 2 (EIF2) Signaling and Coronavirus Pathogenesis

**Authors:** Shihori Tanabe, Sabina Quader, Ryuichi Ono, Hiroyoshi Y. Tanaka, Horacio Cabral

PMC · DOI: 10.3390/ijms27031525 · International Journal of Molecular Sciences · 2026-02-04

## TL;DR

This paper explores how the EIF2 signaling pathway interacts with coronavirus infection, finding that they have opposite activation states and share key molecules.

## Contribution

The study identifies inverse activation states and overlapping molecular components between EIF2 signaling and coronavirus pathogenesis.

## Key findings

- EIF2 signaling and coronavirus pathogenesis have inverse activation states.
- EIF2 signaling interacts with multiple miRNAs like let-7 and miR-1292-3p.
- Eight molecules and one complex overlap between the two pathways.

## Abstract

Eukaryotic initiation factor 2 (EIF2) signaling plays a crucial role in regulating mRNA translation and initiating eukaryotic protein synthesis. Computational molecular network pathway analysis of the canonical pathways of the coronaviral infection revealed that EIF2 signaling is inactivated when the coronavirus pathogenesis pathway is activated and vice versa. Our computational analyses indicated that the coronavirus pathogenesis pathway and EIF2 signaling had inverse activation states. Computational investigation of upstream or downstream microRNA (miRNA) revealed that EIF2 signaling directly interacted with miRNAs, including let-7, miR-1292-3p (miRNAs with the seed CGCGCCC), miR-15, miR-34, miR-378, miR-493, miR-497, miR-7, miR-8, and MIRLET7. A total of 36 nodes, including 8 molecules (ATF4, BCL2, CCND1, DDIT3, EIF2A, EIF2AK3, EIF4E, and ERK1/2), 1 complex (the ribosomal 40s subunit), and 1 function (apoptosis) in the coronavirus pathogenesis pathway, overlapped with EIF2 signaling. Alterations in EIF2 signaling may play a role in the pathogenesis of coronavirus.

## Linked entities

- **Genes:** EIF2A (eukaryotic translation initiation factor 2A) [NCBI Gene 83939], EIF2AK3 (eukaryotic translation initiation factor 2 alpha kinase 3) [NCBI Gene 9451], EIF4E (eukaryotic translation initiation factor 4E) [NCBI Gene 1977], erk1/2 (mitogen-activated protein kinase) [NCBI Gene 778596], ATF4 (activating transcription factor 4) [NCBI Gene 468], BCL2 (BCL2 apoptosis regulator) [NCBI Gene 596], CCND1 (cyclin D1) [NCBI Gene 595], DDIT3 (DNA damage inducible transcript 3) [NCBI Gene 1649]
- **Proteins:** EIF2S1 (eukaryotic translation initiation factor 2 subunit alpha)

## Full-text entities

- **Genes:** MIR493 (microRNA 493) [NCBI Gene 574450] {aka MIRN493, hsa-mir-493, mir-493}, ATF4 (activating transcription factor 4) [NCBI Gene 468] {aka CREB-2, CREB2, TAXREB67, TXREB}, CCND1 (cyclin D1) [NCBI Gene 595] {aka BCL1, D11S287E, PRAD1, U21B31}, EIF2AK3 (eukaryotic translation initiation factor 2 alpha kinase 3) [NCBI Gene 9451] {aka PEK, PERK, WRS}, MIR34A (microRNA 34a) [NCBI Gene 407040] {aka MIRN34A, miRNA34A, mir-34, mir-34a}, EIF2A (eukaryotic translation initiation factor 2A) [NCBI Gene 83939] {aka CDA02, EIF-2A, MST089, MSTP004, MSTP089}, DDIT3 (DNA damage inducible transcript 3) [NCBI Gene 1649] {aka AltDDIT3, C/EBPzeta, CEBPZ, CHOP, CHOP-10, CHOP10}, EIF2S2 (eukaryotic translation initiation factor 2 subunit beta) [NCBI Gene 8894] {aka EIF2, EIF2B, EIF2beta, PPP1R67, eIF-2-beta}, BCL2 (BCL2 apoptosis regulator) [NCBI Gene 596] {aka Bcl-2, PPP1R50}, EIF4E (eukaryotic translation initiation factor 4E) [NCBI Gene 1977] {aka AUTS19, CBP, EIF4E1, EIF4EL1, EIF4F, eIF-4E}, LILRB1 (leukocyte immunoglobulin like receptor B1) [NCBI Gene 10859] {aka CD85J, ILT-2, ILT2, LIR-1, LIR1, MIR-7}, MIR497 (microRNA 497) [NCBI Gene 574456] {aka MIRN497, hsa-mir-497, mir-497}, MIR378A (microRNA 378a) [NCBI Gene 494327] {aka MIR378, MIRN378, hsa-mir-378, hsa-mir-378a, miRNA378}
- **Diseases:** coronaviral infection (MESH:D018352)
- **Species:** Gammacoronavirus (genus) [taxon 694013]

## Full text

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## Figures

14 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12898783/full.md

## References

36 references — full list in the complete paper: https://tomesphere.com/paper/PMC12898783/full.md

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Source: https://tomesphere.com/paper/PMC12898783