chr2-100974889-G-A

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 0P and 15B. BP4_StrongBP6_ModerateBP7BS1BS2

The NM_002518.4(NPAS2):​c.1227G>A​(p.Ser409=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00127 in 1,614,016 control chromosomes in the GnomAD database, including 24 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0064 ( 14 hom., cov: 33)
Exomes 𝑓: 0.00073 ( 10 hom. )

Consequence

NPAS2
NM_002518.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -4.03
Variant links:
Genes affected
NPAS2 (HGNC:7895): (neuronal PAS domain protein 2) The protein encoded by this gene is a member of the basic helix-loop-helix (bHLH)-PAS family of transcription factors. A similar mouse protein may play a regulatory role in the acquisition of specific types of memory. It also may function as a part of a molecular clock operative in the mammalian forebrain. [provided by RefSeq, Jul 2008]
NPAS2-AS1 (HGNC:40408): (NPAS2 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.79).
BP6
Variant 2-100974889-G-A is Benign according to our data. Variant chr2-100974889-G-A is described in ClinVar as [Benign]. Clinvar id is 773841.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-4.03 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00643 (979/152246) while in subpopulation AFR AF= 0.0224 (932/41534). AF 95% confidence interval is 0.0212. There are 14 homozygotes in gnomad4. There are 464 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 979 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NPAS2NM_002518.4 linkuse as main transcriptc.1227G>A p.Ser409= synonymous_variant 13/21 ENST00000335681.10 NP_002509.2
NPAS2-AS1NR_110213.1 linkuse as main transcriptn.575+396C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NPAS2ENST00000335681.10 linkuse as main transcriptc.1227G>A p.Ser409= synonymous_variant 13/211 NM_002518.4 ENSP00000338283 P1
NPAS2-AS1ENST00000652285.1 linkuse as main transcriptn.605+396C>T intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.00644
AC:
979
AN:
152128
Hom.:
14
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0225
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00223
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000882
Gnomad OTH
AF:
0.00287
GnomAD3 exomes
AF:
0.00185
AC:
466
AN:
251386
Hom.:
12
AF XY:
0.00133
AC XY:
181
AN XY:
135860
show subpopulations
Gnomad AFR exome
AF:
0.0250
Gnomad AMR exome
AF:
0.000983
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000141
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000728
AC:
1064
AN:
1461770
Hom.:
10
Cov.:
35
AF XY:
0.000633
AC XY:
460
AN XY:
727194
show subpopulations
Gnomad4 AFR exome
AF:
0.0237
Gnomad4 AMR exome
AF:
0.00110
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000120
Gnomad4 OTH exome
AF:
0.00119
GnomAD4 genome
AF:
0.00643
AC:
979
AN:
152246
Hom.:
14
Cov.:
33
AF XY:
0.00623
AC XY:
464
AN XY:
74436
show subpopulations
Gnomad4 AFR
AF:
0.0224
Gnomad4 AMR
AF:
0.00222
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000882
Gnomad4 OTH
AF:
0.00284
Alfa
AF:
0.00321
Hom.:
1
Bravo
AF:
0.00725
Asia WGS
AF:
0.00144
AC:
5
AN:
3478
EpiCase
AF:
0.000273
EpiControl
AF:
0.000296

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 31, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.79
CADD
Benign
0.059
DANN
Benign
0.91

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.

Other links and lift over

dbSNP: rs116479799; hg19: chr2-101591351; API