17-81683113-A-C

Position:

• chr17-81683113-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_001040025.3(ARL16):​c.134T>G​(p.Leu45Arg) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: ARL16 NM_001040025.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.12

Genes affected

ARL16 (HGNC:27902): (ADP ribosylation factor like GTPase 16) The protein encoded by this gene belongs to the ARL (ADP-ribosylation factor-like) family of proteins, which are structurally related to ADP-ribosylation factors (ARFs). This protein has been shown to have an inhibitory role in the cellular antiviral response. This gene product interacts with the C-terminal domain of the DEXD/H-box helicase 58 (DDX58) gene product. This interaction was found to suppress the association between the DDX58 gene product and RNA, thereby negatively regulating the activity of the DDX58 gene product. [provided by RefSeq, Jul 2016]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.917

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ARL16	NM_001040025.3	c.134T>G	p.Leu45Arg	missense_variant	3/5	ENST00000622299.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ARL16	ENST00000622299.5	c.134T>G	p.Leu45Arg	missense_variant	3/5	1	NM_001040025.3	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000370 Hom.: 0

Bravo AF: 0.00000378

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

Oct 06, 2021

The c.206T>G (p.L69R) alteration is located in exon 3 (coding exon 3) of the ARL16 gene. This alteration results from a T to G substitution at nucleotide position 206, causing the leucine (L) at amino acid position 69 to be replaced by an arginine (R). 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	Pathogenic	0.71
BayesDel_addAF	Pathogenic	0.22	D
BayesDel_noAF	Uncertain	0.080
CADD	Pathogenic	29
DANN	Uncertain	1.0
DEOGEN2	Benign	0.073	T;.;T
Eigen	Uncertain	0.53
Eigen_PC	Uncertain	0.40
FATHMM_MKL	Uncertain	0.97	D
M_CAP	Uncertain	0.22	D
MetaRNN	Pathogenic	0.92	D;D;D
MetaSVM	Benign	-0.29	T
MutationAssessor	Pathogenic	3.1	M;.;M
MutationTaster	Benign	1.0	D;D;D;D;D
PrimateAI	Uncertain	0.71	T
PROVEAN	Uncertain	-3.8	D;.;.
REVEL	Uncertain	0.52
Sift	Uncertain	0.0020	D;.;.
Sift4G	Uncertain	0.0020	D;D;D
Polyphen		0.99	D;.;D
Vest4		0.86
MutPred		0.78		Gain of disorder (P = 0.012);.;Gain of disorder (P = 0.012);
MVP		0.81
MPC		0.43
ClinPred		1.0	D
GERP RS		3.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.80
gMVP		0.57

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: rs2036887921; hg19: chr17-79650143;