rs191903572

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_000193.4(SHH):​c.1078C>T​(p.Leu360Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00168 in 1,509,260 control chromosomes in the GnomAD database, including 7 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 0.00074 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0018 ( 7 hom. )

Consequence

SHH
NM_000193.4 synonymous

Scores

1
1

Clinical Significance

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

Conservation

PhyloP100: 1.22
Variant links:
Genes affected
SHH (HGNC:10848): (sonic hedgehog signaling molecule) This gene encodes a protein that is instrumental in patterning the early embryo. It has been implicated as the key inductive signal in patterning of the ventral neural tube, the anterior-posterior limb axis, and the ventral somites. Of three human proteins showing sequence and functional similarity to the sonic hedgehog protein of Drosophila, this protein is the most similar. The protein is made as a precursor that is autocatalytically cleaved; the N-terminal portion is soluble and contains the signalling activity while the C-terminal portion is involved in precursor processing. More importantly, the C-terminal product covalently attaches a cholesterol moiety to the N-terminal product, restricting the N-terminal product to the cell surface and preventing it from freely diffusing throughout the developing embryo. Defects in this protein or in its signalling pathway are a cause of holoprosencephaly (HPE), a disorder in which the developing forebrain fails to correctly separate into right and left hemispheres. HPE is manifested by facial deformities. It is also thought that mutations in this gene or in its signalling pathway may be responsible for VACTERL syndrome, which is characterized by vertebral defects, anal atresia, tracheoesophageal fistula with esophageal atresia, radial and renal dysplasia, cardiac anomalies, and limb abnormalities. Additionally, mutations in a long range enhancer located approximately 1 megabase upstream of this gene disrupt limb patterning and can result in preaxial polydactyly. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.61).
BP6
Variant 7-155803211-G-A is Benign according to our data. Variant chr7-155803211-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 196230.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Benign=2, Uncertain_significance=1}.
BP7
Synonymous conserved (PhyloP=1.22 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000743 (113/152016) while in subpopulation NFE AF= 0.00141 (96/67954). AF 95% confidence interval is 0.00118. There are 0 homozygotes in gnomad4. There are 53 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 113 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SHHNM_000193.4 linkc.1078C>T p.Leu360Leu synonymous_variant Exon 3 of 3 ENST00000297261.7 NP_000184.1 Q15465

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SHHENST00000297261.7 linkc.1078C>T p.Leu360Leu synonymous_variant Exon 3 of 3 1 NM_000193.4 ENSP00000297261.2 Q15465
SHHENST00000430104.5 linkc.302-2966C>T intron_variant Intron 3 of 3 1 ENSP00000396621.1 C9JC48
SHHENST00000435425.1 linkn.302-2614C>T intron_variant Intron 3 of 4 1 ENSP00000413871.1 F8WEH4
SHHENST00000441114.5 linkn.302-2544C>T intron_variant Intron 3 of 4 1 ENSP00000410546.1 F8WB84

Frequencies

GnomAD3 genomes
AF:
0.000750
AC:
114
AN:
151910
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000314
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00955
Gnomad NFE
AF:
0.00141
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000513
AC:
61
AN:
118886
Hom.:
0
AF XY:
0.000562
AC XY:
38
AN XY:
67592
show subpopulations
Gnomad AFR exome
AF:
0.000501
Gnomad AMR exome
AF:
0.000287
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000206
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000950
Gnomad OTH exome
AF:
0.000662
GnomAD4 exome
AF:
0.00178
AC:
2421
AN:
1357244
Hom.:
7
Cov.:
35
AF XY:
0.00175
AC XY:
1172
AN XY:
671474
show subpopulations
Gnomad4 AFR exome
AF:
0.000353
Gnomad4 AMR exome
AF:
0.000372
Gnomad4 ASJ exome
AF:
0.0000419
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000225
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00217
Gnomad4 OTH exome
AF:
0.00116
GnomAD4 genome
AF:
0.000743
AC:
113
AN:
152016
Hom.:
0
Cov.:
32
AF XY:
0.000713
AC XY:
53
AN XY:
74336
show subpopulations
Gnomad4 AFR
AF:
0.000313
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00141
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.00134
Hom.:
1
Bravo
AF:
0.000763
Asia WGS
AF:
0.000294
AC:
1
AN:
3420

ClinVar

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

Submissions by phenotype

not provided Uncertain:1Benign:1
Sep 04, 2018
Eurofins Ntd Llc (ga)
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 31, 2019
Athena Diagnostics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:1
Dec 28, 2017
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Inborn genetic diseases Benign:1
Jun 23, 2023
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. -

Holoprosencephaly 3 Benign:1
Aug 29, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.61
CADD
Benign
9.5
DANN
Uncertain
0.98

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: rs191903572; hg19: chr7-155595905; API