EIF3M
Eukaryotic translation initiation factor 3 subunit M
Also known as: EIF3M_HUMAN, FLJ29030, GA17, hfl-B5, PCID1, TANGO7
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q7L2H7
- Gene
- EIF3M
- Ensembl
- ENSG00000149100
- Chromosome
- 11
- Canonical length
- 374 aa
- Protein class
- Predicted intracellular proteins
- Subcellular location
- Cytosol
OverviewNCBI Gene
This gene encodes a protein that is part of the eurkaryotic translation initiation factor 3 complete (eIF-3) required for protein synthesis. Elevated levels of the encoded protein are present in cancer cell lines. Inactivation of the encoded protein has been shown to interfere with translation of herpes virus mRNAs by preventing the association of mRNAs with the ribosomes. A pseudogene of this gene is located on the X chromosome. [provided by RefSeq, Dec 2011]
Canonical amino-acid sequenceUniProt
374 residues, UniProt reviewed canonical sequence.
>Q7L2H7|EIF3M
1 MSVPAFIDIS EEDQAAELRA YLKSKGAEIS EENSEGGLHV DLAQIIEACD VCLKEDDKDV
61 ESVMNSVVSL LLILEPDKQE ALIESLCEKL VKFREGERPS LRLQLLSNLF HGMDKNTPVR
121 YTVYCSLIKV AASCGAIQYI PTELDQVRKW ISDWNLTTEK KHTLLRLLYE ALVDCKKSDA
181 ASKVMVELLG SYTEDNASQA RVDAHRCIVR ALKDPNAFLF DHLLTLKPVK FLEGELIHDL
241 LTIFVSAKLA SYVKFYQNNK DFIDSLGLLH EQNMAKMRLL TFMGMAVENK EISFDTMQQE
301 LQIGADDVEA FVIDAVRTKM VYCKIDQTQR KVVVSHSTHR TFGKQQWQQL YDTLNAWKQN
361 LNKVKNSLLS LSDTLocalizationUniProt · AlphaFold · HPA
Whether an antibody against EIF3M can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.33
- Highest tissue expression
- 149 nTPM
Expression across tissuesHPA
Tissue
- ovary: 149 nTPM
- fallopian tube: 138 nTPM
- tonsil: 138 nTPM
- bone marrow: 134 nTPM
- pancreas: 129 nTPM
- breast: 128 nTPM
Single-cell type
- decidual stromal cells: 520 nCPM
- migrating cytotrophoblasts: 403 nCPM
- esophageal basal cells: 390 nCPM
- esophageal suprabasal cells: 381 nCPM
- extravillous trophoblasts: 368 nCPM
- fallopian secretory cells: 340 nCPM
Immune cell
- myeloid DC: 259 nTPM
- classical monocyte: 212 nTPM
- intermediate monocyte: 189 nTPM
- total PBMC: 186 nTPM
- T-reg: 157 nTPM
- plasmacytoid DC: 155 nTPM
Brain region
- hypothalamus: 53 nTPM
- white matter: 50 nTPM
- spinal cord: 45 nTPM
- basal ganglia: 45 nTPM
- medulla oblongata: 45 nTPM
- cerebral cortex: 43 nTPM
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.61
- gnomAD pLI
- 0.02
- gnomAD missense Z
- 0.97
- DepMap mean gene effect
- -1.14
- DepMap dependency class
- common
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cytoplasmic translational initiation
- formation of cytoplasmic translation initiation complex
- translational initiation
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Proteasome component (PCI) domain
- Armadillo-type fold
- Winged helix DNA-binding domain superfamily
- Eukaryotic translation initiation factor 3 subunit M eIF3m/COP9 signalosome complex subunit 7 COPS7
- PCI domain
- Eukaryotic translation initiation factor 3 subunit M
- eIF3 subunit M, C-terminal helix domain
- eIF3 subunit M, C-terminal helix
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of EIF3M in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads EIF3M as an antibody target. Whether an autoantibody or antibody against EIF3M could matter depends on whether native EIF3M is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
EIF3M is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label EIF3M as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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