Genetic Variant MCL1:p.Ala28Thr (chr1-150579449-C-T) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_021960.5(MCL1):c.82G>A(p.Ala28Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000314 in 1,590,490 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000033 ( 0 hom. )

Consequence

MCL1
NM_021960.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.634

Variant links:

Genes affected

MCL1 (HGNC:6943): (MCL1 apoptosis regulator, BCL2 family member) This gene encodes an anti-apoptotic protein, which is a member of the Bcl-2 family. Alternative splicing results in multiple transcript variants. The longest gene product (isoform 1) enhances cell survival by inhibiting apoptosis while the alternatively spliced shorter gene products (isoform 2 and isoform 3) promote apoptosis and are death-inducing. [provided by RefSeq, Oct 2010]

MCL1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.09960997).

BS2

High AC in GnomAdExome4 at 47 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MCL1	NM_021960.5 link	c.82G>A	p.Ala28Thr	missense_variant	Exon 1 of 3	ENST00000369026.3	NP_068779.1	Q07820-1
MCL1	NM_182763.3 link	c.82G>A	p.Ala28Thr	missense_variant	Exon 1 of 2		NP_877495.1	Q07820-2
MCL1	NM_001197320.2 link	c.82G>A	p.Ala28Thr	missense_variant	Exon 1 of 4		NP_001184249.1	Q07820C8YZ26A0A087WT64

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MCL1	ENST00000369026.3 link	c.82G>A	p.Ala28Thr	missense_variant	Exon 1 of 3	1	NM_021960.5	ENSP00000358022.2		Q07820-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000145

AC:

AN:

207336

Hom.:

AF XY:

0.0000172

AC XY:

AN XY:

116306

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:

0.0000331

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000327

AC:

AN:

1438304

Hom.:

Cov.:

AF XY:

0.0000238

AC XY:

AN XY:

715338

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:

0.0000408

Gnomad4 OTH exome

AF:

0.0000337

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152186

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74358

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000283

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.0000175

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 16, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.82G>A (p.A28T) alteration is located in exon 1 (coding exon 1) of the MCL1 gene. This alteration results from a G to A substitution at nucleotide position 82, causing the alanine (A) at amino acid position 28 to be replaced by a threonine (T). 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

0.071

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.53

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.024

T;T;.

Eigen

Benign

-0.75

Eigen_PC

Benign

-0.73

FATHMM_MKL

Benign

0.028

LIST_S2

Benign

0.67

T;T;T

M_CAP

Benign

0.016

MetaRNN

Benign

0.10

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.69

.;N;N

PrimateAI

Uncertain

0.76

PROVEAN

Benign

-0.49

.;N;N

REVEL

Benign

0.039

Sift

Uncertain

0.0040

.;D;D

Sift4G

Benign

0.12

T;T;T

Polyphen

0.013, 0.056

.;B;B

Vest4

0.090

MutPred

0.22

Gain of glycosylation at A28 (P = 9e-04);Gain of glycosylation at A28 (P = 9e-04);Gain of glycosylation at A28 (P = 9e-04);

MVP

0.18

MPC

1.5

ClinPred

0.64

GERP RS

1.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.6

Varity_R

0.11

gMVP

0.24

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