METTL2B

Chr 7

methyltransferase 2B, tRNA N3-cytidine

Also known as: METL, METTL2, PSENIP1

This gene is a member of a family of methyltransferases that share homology with, but are distinct from, the UbiE family of methyltransferases. Alternatively spliced variants which encode different protein isoforms have been described; however, not all variants have been fully characterized. [provided by RefSeq, Jul 2008]

0
Active trials
23
Pathogenic / LP
82
ClinVar variants
0
Pubs (1 yr)
0.1
Missense Z
1.18
LOEUF
Clinical SummaryMETTL2B
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.
📋
ClinVar Variants
23 Pathogenic / Likely Pathogenic· 56 VUS of 82 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.18LOEUF
pLI 0.000
Z-score 0.94
OE 0.78 (0.531.18)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
0.10Z-score
OE missense 0.98 (0.871.10)
201 obs / 205.1 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.78 (0.531.18)
00.351.4
Missense OE0.98 (0.871.10)
00.61.4
Synonymous OE1.05
01.21.6
LoF obs/exp: 16 / 20.6Missense obs/exp: 201 / 205.1Syn Z: -0.35
DN
DN
0.6259th %ile
GOF
0.5171th %ile
LOF
0.2970th %ile

The highest-scoring mechanism for this gene is dominant-negative.

DNprediction above median

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

82 submitted variants in ClinVar

Classification Summary

Pathogenic23
VUS56
Likely Benign2
Benign1
23
Pathogenic
56
VUS
2
Likely Benign
1
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
23
0
23
Likely Pathogenic
0
0
0
0
0
VUS
0
49
7
0
56
Likely Benign
0
0
1
1
2
Benign
0
0
0
1
1
Total04931282

LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly

View in ClinVar →

METTL2B · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →
Clinical Literature
Landmark / reviewRecent case evidence
Recent Gene-Specific Literature
Gene in title · MEDLINE · newest first
Europe PMC

No open access results found