EIF3L

protein-coding

eukaryotic translation initiation factor 3 subunit L, the group of Eukaryotic translation initiation factor 3

Gene summary

Enables RNA binding activity. Contributes to translation initiation factor activity. Involved in translational initiation and viral translational termination-reinitiation. Located in membrane. Part of eukaryotic translation initiation factor 3 complex. [provided by Alliance of Genome Resources, Jul 2025]

Previous symbols:
  • EIF3S6IP
  • EIF3EIP

MANE transcript

NM_016091.4

Inheritance

—

ClinVar variants

U:49B:2

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0.19

Max pathogenic AF

—

Genomic locus

chr22:37,848,868-37,889,407

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~40.5 kb
Loading mutation effect viewer...

GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

No GenCC data available for this gene.

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to EIF3L variants in ClinVar

2 Conditions Cataloged
not specifiedTotal: 36
not providedTotal: 1

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_016091.4. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
2
clinvar
1
clinvar
1
clinvar
4
missense
39
clinvar
39
nonsense
0
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
8
clinvar
8
Total00491151
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 67 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_016091.4RefSeqNP_057175.113MANE Select
ENST00000652021.1EnsemblENSP00000499067.113MANE Select
NM_001242923.2RefSeqNP_001229852.111Standard
NM_001363785.2RefSeqNP_001350714.110Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Formation of the ternary complex, and subsequently, the 43S complex
  • Translation initiation complex formation
  • Activation of the mRNA upon binding of the cap-binding complex and eIFs, and subsequent binding to 43S
  • Eukaryotic Translation Initiation
  • Translation

Biological Process

  • formation of cytoplasmic translation initiation complex
  • translational initiation
  • viral translational termination-reinitiation

Molecular Function

  • RNA binding
  • translation initiation factor activity
  • protein binding

Cellular Component

  • fibrillar center
  • nucleoplasm
  • cytosol
  • eukaryotic translation initiation factor 3 complex
  • membrane

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000412331
Coding exons
13
Length
40540
Individuals with no LoFs
125730
Homozygous LoFs
0
Heterozygous LoFs
18
Defined
125748
p
0.0000716
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense2.701913290.5810.00001843752
Missense (PolyPhen)4497.180.452771246
Synonymous-0.09151221211.010.00000642995
Loss of Function4.30632.40.1850.00000146396

Population LoF Frequency

PopulationCAFp-valueStatus
African0.000120.00012rare
Latino/Admixed American0.0000290.000029rare
Ashkenazi Jewish0.0000990.000099rare
East Asian0.0000550.000054rare
Finnish0.000370.00037rare
European (Non-Finnish)0.0000350.000035rare
South Asian00.0absent
Other0.000160.00016rare

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Component of the eukaryotic translation initiation factor 3 (eIF-3) complex, which is required for several steps in the initiation of protein synthesis (PubMed:17581632, PubMed:25849773, PubMed:27462815). The eIF-3 complex associates with the 40S ribosome and facilitates the recruitment of eIF-1, eIF-1A, eIF-2:GTP:methionyl-tRNAi and eIF-5 to form the 43S pre- initiation complex (43S PIC). The eIF-3 complex stimulates mRNA recruitment to the 43S PIC and scanning of the mRNA for AUG recognition. The eIF-3 complex is also required for disassembly and recycling of post-termination ribosomal complexes and subsequently prevents premature joining of the 40S and 60S ribosomal subunits prior to initiation (PubMed:17581632). The eIF- 3 complex specifically targets and initiates translation of a subset of mRNAs involved in cell proliferation, including cell cycling, differentiation and apoptosis, and uses different modes of RNA stem-loop binding to exert either translational activation or repression (PubMed:25849773). {ECO:0000255|HAMAP-Rule:MF_03011, ECO:0000269|PubMed:17581632, ECO:0000269|PubMed:25849773, ECO:0000269|PubMed:27462815}.;

Recessive Scores

pRec
0.123

Intolerance Scores

LoFtool
0.434
RVIS EVS
-0.76
RVIS percentile EVS
13.33

Essentials

Essential (CRISPR)
E
Essential (CRISPR2)
E
Essential (gene trap)
H
Indispensability pred.
E
Indispensability score
0.728

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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