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GeneBe

rs7695038

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS1

The NM_025074.7(FRAS1):c.9116-5C>A variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000368 in 1,612,096 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 2/2 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00038 ( 4 hom. )

Consequence

FRAS1
NM_025074.7 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.03489
2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.500
Variant links:
Genes affected
FRAS1 (HGNC:19185): (Fraser extracellular matrix complex subunit 1) This gene encodes an extracellular matrix protein that appears to function in the regulation of epidermal-basement membrane adhesion and organogenesis during development. Mutations in this gene cause Fraser syndrome, a multisystem malformation that can include craniofacial, urogenital and respiratory system abnormalities. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2009]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.69).
BP6
Variant 4-78499716-C-A is Benign according to our data. Variant chr4-78499716-C-A is described in ClinVar as [Benign]. Clinvar id is 2182730.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000217 (33/151890) while in subpopulation SAS AF= 0.00642 (31/4826). AF 95% confidence interval is 0.00465. There are 0 homozygotes in gnomad4. There are 25 alleles in male gnomad4 subpopulation. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FRAS1NM_025074.7 linkuse as main transcriptc.9116-5C>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000512123.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FRAS1ENST00000512123.4 linkuse as main transcriptc.9116-5C>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 5 NM_025074.7 P1Q86XX4-2
FRAS1ENST00000682513.1 linkuse as main transcriptc.9116-5C>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant

Frequencies

GnomAD3 genomes
AF:
0.000217
AC:
33
AN:
151774
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00642
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.000838
AC:
208
AN:
248282
Hom.:
0
AF XY:
0.00115
AC XY:
155
AN XY:
134694
show subpopulations
Gnomad AFR exome
AF:
0.0000647
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00675
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000167
GnomAD4 exome
AF:
0.000384
AC:
560
AN:
1460206
Hom.:
4
Cov.:
32
AF XY:
0.000567
AC XY:
412
AN XY:
726382
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.0000448
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.00603
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000540
Gnomad4 OTH exome
AF:
0.000465
GnomAD4 genome
AF:
0.000217
AC:
33
AN:
151890
Hom.:
0
Cov.:
33
AF XY:
0.000337
AC XY:
25
AN XY:
74234
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00642
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000474

ClinVar

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

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJan 22, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.69
Cadd
Benign
5.4
Dann
Benign
0.67

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.035
dbscSNV1_RF
Benign
0.14
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: rs7695038; hg19: chr4-79420870; API