9-20354863-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The NM_004529.4(MLLT3):c.1448G>A(p.Ser483Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,460,060 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

MLLT3
NM_004529.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.09

Variant links:

Genes affected

MLLT3 (HGNC:7136): (MLLT3 super elongation complex subunit) Enables chromatin binding activity and lysine-acetylated histone binding activity. Involved in several processes, including hematopoietic stem cell differentiation; positive regulation of transcription, DNA-templated; and regulation of stem cell division. Acts upstream of or within negative regulation of canonical Wnt signaling pathway and positive regulation of Wnt signaling pathway, planar cell polarity pathway. Located in cytosol and nucleoplasm. Part of transcription elongation factor complex. [provided by Alliance of Genome Resources, Apr 2022]

MLLT3 links:

LOC124902129 (HGNC:):

LOC124902129 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM1

In a modified_residue Phosphoserine (size 0) in uniprot entity AF9_HUMAN

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.2473762).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
MLLT3	NM_004529.4 linkuse as main transcript	c.1448G>A	p.Ser483Asn	missense_variant	9/11	ENST00000380338.9
LOC124902129	XR_007061434.1 linkuse as main transcript	n.3879+2463C>T		intron_variant, non_coding_transcript_variant
MLLT3	NM_001286691.2 linkuse as main transcript	c.1439G>A	p.Ser480Asn	missense_variant	9/11
LOC124902129	XR_007061433.1 linkuse as main transcript	n.3784+2718C>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MLLT3	ENST00000380338.9 linkuse as main transcript	c.1448G>A	p.Ser483Asn	missense_variant	9/11	1	NM_004529.4	P4	P42568-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251268

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135816

show subpopulations

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1460060

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726462

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 11, 2021

The c.1448G>A (p.S483N) alteration is located in exon 9 (coding exon 9) of the MLLT3 gene. This alteration results from a G to A substitution at nucleotide position 1448, causing the serine (S) at amino acid position 483 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.067

BayesDel_noAF

Benign

-0.33

Cadd

Uncertain

Dann

Uncertain

0.99

DEOGEN2

Uncertain

0.44

T;.;.;.

Eigen

Uncertain

0.59

Eigen_PC

Uncertain

0.65

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.94

D;D;D;D

M_CAP

Benign

0.0070

MetaRNN

Benign

0.25

T;T;T;T

MetaSVM

Benign

-0.60

MutationAssessor

Uncertain

2.6

M;.;.;.

MutationTaster

Benign

1.0

D;D;D;D;D

PrimateAI

Pathogenic

0.82

PROVEAN

Benign

-1.5

N;.;.;N

REVEL

Benign

0.12

Sift

Benign

0.040

D;.;.;D

Sift4G

Benign

0.12

T;T;T;T

Polyphen

0.90

P;.;.;.

Vest4

0.37

MutPred

0.26

Loss of phosphorylation at S483 (P = 0.0403);.;.;.;

MVP

0.24

MPC

0.031

ClinPred

0.92

GERP RS

6.0

Varity_R

0.25

gMVP

0.53

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over