10-21673641-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001195626.3(MLLT10):c.1343C>T(p.Ala448Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,794 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: 31)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: MLLT10 NM_001195626.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.66

Genes affected

MLLT10 (HGNC:16063): (MLLT10 histone lysine methyltransferase DOT1L cofactor) This gene encodes a transcription factor and has been identified as a partner gene involved in several chromosomal rearrangements resulting in various leukemias. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.19262719).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MLLT10	NM_001195626.3	c.1343C>T	p.Ala448Val	missense_variant	11/23	ENST00000307729.12
MLLT10	NM_004641.4	c.1343C>T	p.Ala448Val	missense_variant	11/24
MLLT10	NM_001324297.2	c.608C>T	p.Ala203Val	missense_variant	13/25
MLLT10	NR_136736.2	n.1810C>T		non_coding_transcript_exon_variant	12/26

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MLLT10	ENST00000307729.12	c.1343C>T	p.Ala448Val	missense_variant	11/23	1	NM_001195626.3	P1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD3 exomes AF: 0.0000120 AC: 3 AN: 250960 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135702

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000163

Gnomad SAS 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: 2 AN: 1461794 Hom.: 0 Cov.: 35 AF XY: 0.00 AC XY: 0 AN XY: 727192

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000504

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

Bravo AF: 0.00000378

ExAC AF: 0.0000165 AC: 2

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 15, 2023

The c.1343C>T (p.A448V) alteration is located in exon 10 (coding exon 10) of the MLLT10 gene. This alteration results from a C to T substitution at nucleotide position 1343, causing the alanine (A) at amino acid position 448 to be replaced by a valine (V). 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	0.078
BayesDel_addAF	Benign	-0.31	T
BayesDel_noAF	Benign	-0.45
Cadd	Uncertain	25
Dann	Uncertain	1.0
DEOGEN2	Benign	0.14	T;.;T;T;.
Eigen	Uncertain	0.33
Eigen_PC	Uncertain	0.41
FATHMM_MKL	Uncertain	0.94	D
M_CAP	Benign	0.0094	T
MetaRNN	Benign	0.19	T;T;T;T;T
MetaSVM	Benign	-0.77	T
MutationAssessor	Benign	1.9	L;L;L;L;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Benign	0.41	T
Sift4G	Benign	0.28	T;T;T;T;D
Polyphen		0.58	P;.;P;P;.
Vest4		0.30
MutPred		0.26		Gain of sheet (P = 0.0221);Gain of sheet (P = 0.0221);Gain of sheet (P = 0.0221);Gain of sheet (P = 0.0221);.;
MVP		0.22
MPC		0.13
ClinPred		0.37	T
GERP RS		4.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.14
gMVP		0.37

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

Other links and lift over

dbSNP: rs780353797; hg19: chr10-21962570;