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1-3775430-C-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_001288583.2(SMIM1):c.57C>T(p.Asp19=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000029 in 1,550,336 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

SMIM1
NM_001288583.2 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -3.54
Variant links:
Genes affected
SMIM1 (HGNC:44204): (small integral membrane protein 1 (Vel blood group)) This gene encodes a small, conserved protein that participates in red blood cell formation. The encoded protein is localized to the cell membrane and is the antigen for the Vel blood group. Alternative splicing results in different transcript variants that encode the same protein. [provided by RefSeq, Dec 2013]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 1-3775430-C-T is Benign according to our data. Variant chr1-3775430-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3049952.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-3.54 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SMIM1NM_001288583.2 linkuse as main transcriptc.57C>T p.Asp19= synonymous_variant 3/4 ENST00000642557.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SMIM1ENST00000642557.4 linkuse as main transcriptc.57C>T p.Asp19= synonymous_variant 3/4 NM_001288583.2 P1
SMIM1ENST00000444870.7 linkuse as main transcriptc.57C>T p.Asp19= synonymous_variant 3/41 P1
SMIM1ENST00000561886.2 linkuse as main transcriptc.57C>T p.Asp19= synonymous_variant 3/32
SMIM1ENST00000452264.1 linkuse as main transcript downstream_gene_variant 2

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
151956
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.0000442
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000324
AC:
5
AN:
154260
Hom.:
0
AF XY:
0.0000367
AC XY:
3
AN XY:
81644
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000275
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000336
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000286
AC:
40
AN:
1398380
Hom.:
0
Cov.:
31
AF XY:
0.0000304
AC XY:
21
AN XY:
689720
show subpopulations
Gnomad4 AFR exome
AF:
0.000127
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000448
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000176
Gnomad4 OTH exome
AF:
0.0000172
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
151956
Hom.:
0
Cov.:
31
AF XY:
0.0000404
AC XY:
3
AN XY:
74238
show subpopulations
Gnomad4 AFR
AF:
0.0000483
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:
0.0000442
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000108
Hom.:
0
Bravo
AF:
0.0000567

ClinVar

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

Submissions by phenotype

SMIM1-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesJul 11, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
Cadd
Benign
0.14
Dann
Benign
0.77
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
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: rs779762748; hg19: chr1-3691994; API