17-76469905-A-G

Position:

chr17-76469905-A-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_001088.3(AANAT):c.559A>G(p.Thr187Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000242 in 1,570,100 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

AANAT
NM_001088.3 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.395

Variant links:

Genes affected

AANAT (HGNC:19): (aralkylamine N-acetyltransferase) The protein encoded by this gene belongs to the acetyltransferase superfamily. It is the penultimate enzyme in melatonin synthesis and controls the night/day rhythm in melatonin production in the vertebrate pineal gland. Melatonin is essential for the function of the circadian clock that influences activity and sleep. This enzyme is regulated by cAMP-dependent phosphorylation that promotes its interaction with 14-3-3 proteins and thus protects the enzyme against proteasomal degradation. This gene may contribute to numerous genetic diseases such as delayed sleep phase syndrome. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2009]

AANAT links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

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=0.07470456).

BP6

Variant 17-76469905-A-G is Benign according to our data. Variant chr17-76469905-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 2467443.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
AANAT	NM_001088.3 linkuse as main transcript	c.559A>G	p.Thr187Ala	missense_variant	4/4	ENST00000392492.8
AANAT	NM_001166579.2 linkuse as main transcript	c.694A>G	p.Thr232Ala	missense_variant	7/7
AANAT	NR_110548.2 linkuse as main transcript	n.815A>G		non_coding_transcript_exon_variant	4/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
AANAT	ENST00000392492.8 linkuse as main transcript	c.559A>G	p.Thr187Ala	missense_variant	4/4	1	NM_001088.3	P1	Q16613-1
AANAT	ENST00000250615.7 linkuse as main transcript	c.694A>G	p.Thr232Ala	missense_variant	7/7	1			Q16613-2
AANAT	ENST00000587798.1 linkuse as main transcript	c.*336A>G		3_prime_UTR_variant, NMD_transcript_variant	4/4	5

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152152

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:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000334

AC:

AN:

179424

Hom.:

AF XY:

0.0000310

AC XY:

AN XY:

96698

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000369

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:

0.0000674

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000226

AC:

AN:

1417948

Hom.:

Cov.:

AF XY:

0.0000214

AC XY:

AN XY:

701770

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000260

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:

0.0000257

Gnomad4 OTH exome

AF:

0.0000341

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152152

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74324

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:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000677

Hom.:

Bravo

AF:

0.0000340

ExAC

AF:

0.0000167

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 02, 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

0.064

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.72

CADD

Benign

0.13

DANN

Benign

0.73

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.087

LIST_S2

Benign

0.67

T;T

M_CAP

Benign

0.0052

MetaRNN

Benign

0.075

T;T

MetaSVM

Benign

-0.95

MutationTaster

Benign

0.83

N;N

PrimateAI

Benign

0.33

PROVEAN

Benign

-0.96

N;N

REVEL

Benign

0.058

Sift

Benign

0.51

T;T

Sift4G

Benign

0.23

T;T

Polyphen

0.0

.;B

Vest4

0.028

MutPred

0.29

.;Loss of loop (P = 0.2237);

MVP

0.19

MPC

0.056

ClinPred

0.030

GERP RS

-5.5

Varity_R

0.045

gMVP

0.43

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