rs544461335

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The ENST00000395338.7(AMT):​c.-76G>C variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00145 in 1,455,672 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00092 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0015 ( 2 hom. )

Consequence

AMT
ENST00000395338.7 5_prime_UTR

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: 0.751
Variant links:
Genes affected
AMT (HGNC:473): (aminomethyltransferase) This gene encodes one of four critical components of the glycine cleavage system. Mutations in this gene have been associated with glycine encephalopathy. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]
NICN1 (HGNC:18317): (nicolin 1, tubulin polyglutamylase complex subunit) This protein encoded by this gene localizes to the nucleus and is expressed in numerous tissues including brain, testis, liver, and kidney. This refseq contains genomic sequence in its 3' UTR which is not supported by experimental evidence. Computer predictions indicate that this region of the 3' UTR contains hairpin-forming self-complementary sequence which is possibly excised after transcription. This gene has a pseudogene on chromosome X. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.76).
BP6
Variant 3-49422526-C-G is Benign according to our data. Variant chr3-49422526-C-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 346039.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Benign=1, Uncertain_significance=1}.
BS2
High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NICN1NM_032316.3 linkc.*2307G>C 3_prime_UTR_variant Exon 6 of 6 ENST00000273598.8 NP_115692.1 Q9BSH3-1B2R7Q3
AMTNM_000481.4 linkc.-76G>C upstream_gene_variant ENST00000273588.9 NP_000472.2 P48728-1A0A024R2U7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NICN1ENST00000273598 linkc.*2307G>C 3_prime_UTR_variant Exon 6 of 6 1 NM_032316.3 ENSP00000273598.4 Q9BSH3-1
ENSG00000283189ENST00000636166.1 linkc.496-954G>C intron_variant Intron 4 of 10 5 ENSP00000490106.1 A0A1B0GUH1
AMTENST00000273588.9 linkc.-76G>C upstream_gene_variant 1 NM_000481.4 ENSP00000273588.3 P48728-1

Frequencies

GnomAD3 genomes
AF:
0.000920
AC:
140
AN:
152228
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000410
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000188
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00166
Gnomad OTH
AF:
0.00143
GnomAD3 exomes
AF:
0.000961
AC:
168
AN:
174798
Hom.:
0
AF XY:
0.000970
AC XY:
92
AN XY:
94858
show subpopulations
Gnomad AFR exome
AF:
0.000303
Gnomad AMR exome
AF:
0.000338
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000361
Gnomad NFE exome
AF:
0.00212
Gnomad OTH exome
AF:
0.000636
GnomAD4 exome
AF:
0.00152
AC:
1976
AN:
1303326
Hom.:
2
Cov.:
20
AF XY:
0.00144
AC XY:
939
AN XY:
650922
show subpopulations
Gnomad4 AFR exome
AF:
0.000266
Gnomad4 AMR exome
AF:
0.000317
Gnomad4 ASJ exome
AF:
0.000122
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.000488
Gnomad4 NFE exome
AF:
0.00191
Gnomad4 OTH exome
AF:
0.000965
GnomAD4 genome
AF:
0.000919
AC:
140
AN:
152346
Hom.:
0
Cov.:
32
AF XY:
0.000752
AC XY:
56
AN XY:
74492
show subpopulations
Gnomad4 AFR
AF:
0.000409
Gnomad4 AMR
AF:
0.000327
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000188
Gnomad4 NFE
AF:
0.00166
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.00104
Hom.:
0
Bravo
AF:
0.000876

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:4
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Glycine encephalopathy Uncertain:1Benign:3
Oct 23, 2019
Natera, Inc.
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Sep 26, 2017
Counsyl
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Jan 13, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Inborn genetic diseases Benign:1
Nov 20, 2024
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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
BayesDel_noAF
Benign
-0.76
CADD
Benign
16
DANN
Benign
0.69
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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: rs544461335; hg19: chr3-49459959; API