16-67657611-T-C

Position:

• chr16-67657611-T-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Moderate BP6_Moderate

The NM_001082486.2(ACD):​c.1372A>G​(p.Met458Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: ACD NM_001082486.2 missense
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -1.29

Genes affected

ACD (HGNC:25070): (ACD shelterin complex subunit and telomerase recruitment factor) This gene encodes a protein that is involved in telomere function. This protein is one of six core proteins in the telosome/shelterin telomeric complex, which functions to maintain telomere length and to protect telomere ends. Through its interaction with other components, this protein plays a key role in the assembly and stabilization of this complex, and it mediates the access of telomerase to the telomere. Multiple transcript variants encoding different isoforms have been found for this gene. This gene, which is also referred to as TPP1, is distinct from the unrelated TPP1 gene on chromosome 11, which encodes tripeptidyl-peptidase I. [provided by RefSeq, Jul 2008]

CARMIL2 (HGNC:27089): (capping protein regulator and myosin 1 linker 2) This gene encodes a member of the CARMIL (capping protein, Arp2/3, myosin-I linker) family of proteins. The encoded protein interacts with and negatively regulates the heterodimeric capping protein and promotes cell migration. Reduced expression of this gene has been observed in human psoriasis patients. Mutations in this gene cause a human immunodeficiency syndrome characterized by smooth muscle tumors and impaired T-cell function. [provided by RefSeq, May 2017]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.07282248).
• BP6: Variant 16-67657611-T-C is Benign according to our data. Variant chr16-67657611-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 2586822.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ACD	NM_001082486.2	c.1372A>G	p.Met458Val	missense_variant	12/12	ENST00000620761.6	NP_001075955.2
CARMIL2	NM_001013838.3			downstream_gene_variant		ENST00000334583.11	NP_001013860.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ACD	ENST00000620761.6	c.1372A>G	p.Met458Val	missense_variant	12/12	1	NM_001082486.2	ENSP00000478084	P1
CARMIL2	ENST00000334583.11			downstream_gene_variant		1	NM_001013838.3	ENSP00000334958	A2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 33

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Inborn genetic diseases Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 15, 2023

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	0.065
BayesDel_addAF	Benign	-0.40	T
BayesDel_noAF	Benign	-0.82
CADD	Benign	0.060
DANN	Benign	0.72
DEOGEN2	Benign	0.14	.;T;T;T;T;.
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.019	N
LIST_S2	Benign	0.43	T;T;.;T;T;.
M_CAP	Benign	0.0078	T
MetaRNN	Benign	0.073	T;T;T;T;T;T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	-0.90	.;N;.;.;.;.
MutationTaster	Benign	1.0	N;N
PrimateAI	Benign	0.35	T
REVEL	Benign	0.013
Sift4G	Pathogenic	0.0	.;D;D;.;D;.
Polyphen		0.0	.;B;.;.;.;B
Vest4		0.074, 0.095
MutPred		0.36		.;Loss of glycosylation at P543 (P = 0.0746);.;.;.;.;
MVP		0.22
MPC		0.095
ClinPred		0.063	T
GERP RS		2.1
Varity_R		0.053
gMVP		0.082

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr16-67691514;