Genetic Variant U2AF1L4:p.Met133Val (chr19-35743873-T-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP6_Moderate

The NM_001040425.3(U2AF1L4):c.397A>G(p.Met133Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,506 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M133I) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

U2AF1L4
NM_001040425.3 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 7.46

Publications

0 publications found

Variant links:

Genes affected

U2AF1L4 (HGNC:23020): (U2 small nuclear RNA auxiliary factor 1 like 4) Predicted to enable pre-mRNA 3'-splice site binding activity. Predicted to be involved in mRNA splicing, via spliceosome. Predicted to be located in nucleoplasm. Predicted to be part of U2AF complex and spliceosomal complex. [provided by Alliance of Genome Resources, Apr 2022]

U2AF1L4 links:

ENSG00000267120 (HGNC:):

ENSG00000267120 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP6

Variant 19-35743873-T-C is Benign according to our data. Variant chr19-35743873-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 3976507.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
U2AF1L4	NM_001040425.3 link	c.397A>G	p.Met133Val	missense_variant	Exon 5 of 6	ENST00000378975.8	NP_001035515.1	Q8WU68-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
U2AF1L4	ENST00000378975.8 link	c.397A>G	p.Met133Val	missense_variant	Exon 5 of 6	1	NM_001040425.3	ENSP00000368258.2	Q8WU68-3
ENSG00000267120	ENST00000589807.1 link	n.*158A>G		non_coding_transcript_exon_variant	Exon 6 of 11	2		ENSP00000472696.1	M0R2N4
ENSG00000267120	ENST00000589807.1 link	n.*158A>G		3_prime_UTR_variant	Exon 6 of 11	2		ENSP00000472696.1	M0R2N4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00

AC:

AN:

250160

AF XY:

0.00

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461506

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727022

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44656

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26124

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86184

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53372

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111852

Other (OTH)

AF:

0.00

AC:

AN:

60380

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Jun 03, 2025

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.26

BayesDel_addAF

Uncertain

0.031

BayesDel_noAF

Benign

-0.19

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.24

T;.

Eigen

Uncertain

0.31

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.87

D;D

M_CAP

Benign

0.022

MetaRNN

Uncertain

0.72

D;D

MetaSVM

Benign

-0.93

PhyloP100

7.5

PROVEAN

Uncertain

-3.7

D;D

REVEL

Benign

0.16

Sift

Uncertain

0.0020

D;D

Sift4G

Uncertain

0.0020

D;D

Polyphen

0.79

P;P

Vest4

0.90

MutPred

0.58

Loss of sheet (P = 0.0315);.;

MVP

0.28

ClinPred

0.69

GERP RS

4.4

Varity_R

0.45

Mutation Taster

=73/27

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over