OnCo

SEM1 (26S proteasome complex subunit SEM1) is a gene. The public catalogues list it as a drug target, and an approved or late-stage drug is recorded against it. Tied to Multiple myeloma, Non-Hodgkin lymphoma and Mantle cell lymphoma. This dossier gathers the 0 products (0 approved), 0 trials, 0 pathways and 0 resistance routes in the corpus that involve it, with external identifiers so it can be joined to UniProt, ChEMBL, Open Targets and the rest of biology.

Biology

Component of the 26S proteasome, a multiprotein complex involved in the ATP-dependent degradation of ubiquitinated proteins. This complex plays a key role in the maintenance of protein homeostasis by removing misfolded or damaged proteins, which could impair cellular functions, and by removing proteins whose functions are no longer required. Therefore, the proteasome participates in numerous cellular processes, including cell cycle progression, apoptosis, or DNA damage repair. Component of the TREX-2 complex (transcription and export complex 2), composed of at least ENY2, GANP, PCID2, SEM1, and either centrin CETN2 or CETN3. The TREX-2 complex functions in docking export-competent ribonucleoprotein particles (mRNPs) to the nuclear entrance of the nuclear pore complex (nuclear basket). TREX-2 participates in mRNA export and accurate chromatin positioning in the nucleus by tethering genes to the nuclear periphery. Location: Nucleus (UniProt). Locus 7q21.3 (HGNC).

Where it is found
  • Multiple myeloma: Open Targets association 0.60 with plasma cell myeloma (MONDO_0009693)
  • Non-Hodgkin lymphoma: Open Targets association 0.57 with non-Hodgkin lymphoma (MONDO_0018908)
  • Mantle cell lymphoma: Open Targets association 0.54 with mantle cell lymphoma (MONDO_0018876)
Class: other · Gene: SEM1 · Facts checked 2026-09-23 · Target page

External identifiers

Built from HGNC, Ensembl, UniProt and ChEMBL ids

Products by modality and phase

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Resistance routes

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No pathway diagram carries this target as a node.

Companion diagnostics

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Preclinical models

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Literature

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Query for this target: (TITLE:"SEM1" OR ABSTRACT:"SEM1" OR TITLE:"SEM1 26S proteasome subunit" OR ABSTRACT:"SEM1 26S proteasome subunit" OR TITLE:"26S proteasome complex subunit SEM1" OR ABSTRACT:"26S proteasome complex subunit SEM1" OR TITLE:"DSS1" OR ABSTRACT:"DSS1" OR TITLE:"Shfdg1" OR ABSTRACT:"Shfdg1" OR TITLE:"SHSF1" OR ABSTRACT:"SHSF1") AND (cancer OR tumor OR tumour OR oncology OR carcinoma OR lymphoma OR leukemia OR leukaemia OR myeloma OR sarcoma OR melanoma OR glioma). Results are unfiltered search hits about SEM1, not a curated reading list.

Export

The dossier as machine-readable JSON: identifiers from HGNC, Ensembl, UniProt and ChEMBL, products with status, trials, pathways, hotspots, open questions and assays. The full entity record is in the open API at /api/v1/entities/sem1.json. Licence CC BY-NC 4.0.