chr14-69879726-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP7BS1_Supporting

The NM_001034852.3(SMOC1):​c.48G>A​(p.Leu16=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000251 in 1,591,202 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

SMOC1
NM_001034852.3 synonymous

Scores

2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.367
Variant links:
Genes affected
SMOC1 (HGNC:20318): (SPARC related modular calcium binding 1) This gene encodes a multi-domain secreted protein that may have a critical role in ocular and limb development. Mutations in this gene are associated with microphthalmia and limb anomalies. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2011]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP7
Synonymous conserved (PhyloP=-0.367 with no splicing effect.
BS1
Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.0000215 (31/1439020) while in subpopulation AMR AF= 0.000527 (23/43682). AF 95% confidence interval is 0.000359. There are 0 homozygotes in gnomad4_exome. There are 14 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SMOC1NM_001034852.3 linkuse as main transcriptc.48G>A p.Leu16= synonymous_variant 1/12 ENST00000361956.8 NP_001030024.1
SMOC1NM_022137.6 linkuse as main transcriptc.48G>A p.Leu16= synonymous_variant 1/12 NP_071420.1
SMOC1XM_005267995.2 linkuse as main transcriptc.48G>A p.Leu16= synonymous_variant 1/12 XP_005268052.1
SMOC1XM_005267996.2 linkuse as main transcriptc.48G>A p.Leu16= synonymous_variant 1/12 XP_005268053.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SMOC1ENST00000361956.8 linkuse as main transcriptc.48G>A p.Leu16= synonymous_variant 1/121 NM_001034852.3 ENSP00000355110 A2Q9H4F8-2
SMOC1ENST00000381280.4 linkuse as main transcriptc.48G>A p.Leu16= synonymous_variant 1/121 ENSP00000370680 P4Q9H4F8-1
SMOC1ENST00000555917.1 linkuse as main transcriptn.404+15512G>A intron_variant, non_coding_transcript_variant 4

Frequencies

GnomAD3 genomes
AF:
0.0000591
AC:
9
AN:
152182
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000523
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:
0.00
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000109
AC:
23
AN:
210290
Hom.:
0
AF XY:
0.0000855
AC XY:
10
AN XY:
116922
show subpopulations
Gnomad AFR exome
AF:
0.0000800
Gnomad AMR exome
AF:
0.000556
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:
0.00
Gnomad OTH exome
AF:
0.000759
GnomAD4 exome
AF:
0.0000215
AC:
31
AN:
1439020
Hom.:
0
Cov.:
31
AF XY:
0.0000196
AC XY:
14
AN XY:
715796
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000527
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:
9.02e-7
Gnomad4 OTH exome
AF:
0.000117
GnomAD4 genome
AF:
0.0000591
AC:
9
AN:
152182
Hom.:
0
Cov.:
33
AF XY:
0.0000807
AC XY:
6
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000523
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.000147

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Oct 01, 2014- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
6.8
DANN
Benign
0.63

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: rs755468508; hg19: chr14-70346443; API