chr16-5027984-C-T

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_016256.4(NAGPA):​c.1122G>A​(p.Thr374Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00312 in 1,613,840 control chromosomes in the GnomAD database, including 139 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0045 ( 17 hom., cov: 32)
Exomes 𝑓: 0.0030 ( 122 hom. )

Consequence

NAGPA
NM_016256.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -2.60
Variant links:
Genes affected
NAGPA (HGNC:17378): (N-acetylglucosamine-1-phosphodiester alpha-N-acetylglucosaminidase) Hydrolases are transported to lysosomes after binding to mannose 6-phosphate receptors in the trans-Golgi network. This gene encodes the enzyme that catalyzes the second step in the formation of the mannose 6-phosphate recognition marker on lysosomal hydrolases. Commonly known as 'uncovering enzyme' or UCE, this enzyme removes N-acetyl-D-glucosamine (GlcNAc) residues from GlcNAc-alpha-P-mannose moieties and thereby produces the recognition marker. The encoded preproprotein is proteolytically processed by furin to generate the mature enzyme, a homotetramer of two disulfide-linked homodimers. Mutations in this gene are associated with developmental stuttering in human patients. [provided by RefSeq, Oct 2015]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.66).
BP6
Variant 16-5027984-C-T is Benign according to our data. Variant chr16-5027984-C-T is described in ClinVar as [Benign]. Clinvar id is 784621.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-2.6 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.0686 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NAGPANM_016256.4 linkuse as main transcriptc.1122G>A p.Thr374Thr synonymous_variant 6/10 ENST00000312251.8 NP_057340.2 Q9UK23-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NAGPAENST00000312251.8 linkuse as main transcriptc.1122G>A p.Thr374Thr synonymous_variant 6/101 NM_016256.4 ENSP00000310998.3 Q9UK23-1

Frequencies

GnomAD3 genomes
AF:
0.00449
AC:
683
AN:
152064
Hom.:
18
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00200
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0116
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.0750
Gnomad SAS
AF:
0.00228
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000176
Gnomad OTH
AF:
0.00621
GnomAD3 exomes
AF:
0.00965
AC:
2415
AN:
250330
Hom.:
56
AF XY:
0.00818
AC XY:
1109
AN XY:
135564
show subpopulations
Gnomad AFR exome
AF:
0.00224
Gnomad AMR exome
AF:
0.0257
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0772
Gnomad SAS exome
AF:
0.00111
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000115
Gnomad OTH exome
AF:
0.00458
GnomAD4 exome
AF:
0.00298
AC:
4353
AN:
1461660
Hom.:
122
Cov.:
37
AF XY:
0.00281
AC XY:
2043
AN XY:
727148
show subpopulations
Gnomad4 AFR exome
AF:
0.00128
Gnomad4 AMR exome
AF:
0.0241
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0691
Gnomad4 SAS exome
AF:
0.00125
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000854
Gnomad4 OTH exome
AF:
0.00474
GnomAD4 genome
AF:
0.00447
AC:
681
AN:
152180
Hom.:
17
Cov.:
32
AF XY:
0.00469
AC XY:
349
AN XY:
74378
show subpopulations
Gnomad4 AFR
AF:
0.00200
Gnomad4 AMR
AF:
0.0116
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.0748
Gnomad4 SAS
AF:
0.00228
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000177
Gnomad4 OTH
AF:
0.00615
Alfa
AF:
0.000512
Hom.:
0
Bravo
AF:
0.00655
Asia WGS
AF:
0.0330
AC:
114
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 31, 2019- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.66
CADD
Benign
0.76
DANN
Benign
0.63
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs116864149; hg19: chr16-5077985; API