6-116877504-T-G

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_173560.4(RFX6):​c.223+6T>G variant causes a splice donor region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000351 in 1,548,668 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0019 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00018 ( 2 hom. )

Consequence

RFX6
NM_173560.4 splice_donor_region, intron

Scores

2
Splicing: ADA: 0.0003842
2

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: 0.126
Variant links:
Genes affected
RFX6 (HGNC:21478): (regulatory factor X6) The nuclear protein encoded by this gene is a member of the regulatory factor X (RFX) family of transcription factors. Studies in mice suggest that this gene is specifically required for the differentiation of islet cells for the production of insulin, but not for the differentiation of pancreatic polypeptide-producing cells. It regulates the transcription factors involved in beta-cell maturation and function, thus, restricting the expression of the beta-cell differentiation and specification genes. Mutations in this gene are associated with Mitchell-Riley syndrome, which is characterized by neonatal diabetes with pancreatic hypoplasia, duodenal and jejunal atresia, and gall bladder agenesis.[provided by RefSeq, Sep 2010]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.7).
BP6
Variant 6-116877504-T-G is Benign according to our data. Variant chr6-116877504-T-G is described in ClinVar as [Benign]. Clinvar id is 704782.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr6-116877504-T-G is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00191 (291/152186) while in subpopulation AFR AF= 0.0064 (266/41544). AF 95% confidence interval is 0.00577. There are 2 homozygotes in gnomad4. There are 158 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RFX6NM_173560.4 linkuse as main transcriptc.223+6T>G splice_donor_region_variant, intron_variant ENST00000332958.3 NP_775831.2
RFX6XM_011535589.2 linkuse as main transcriptc.223+6T>G splice_donor_region_variant, intron_variant XP_011533891.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RFX6ENST00000332958.3 linkuse as main transcriptc.223+6T>G splice_donor_region_variant, intron_variant 1 NM_173560.4 ENSP00000332208 P1
RFX6ENST00000487683.5 linkuse as main transcriptn.287+6T>G splice_donor_region_variant, intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.00191
AC:
291
AN:
152068
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00642
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00144
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:
0.00143
GnomAD3 exomes
AF:
0.000453
AC:
69
AN:
152436
Hom.:
2
AF XY:
0.000320
AC XY:
26
AN XY:
81334
show subpopulations
Gnomad AFR exome
AF:
0.00795
Gnomad AMR exome
AF:
0.000245
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000892
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000181
AC:
253
AN:
1396482
Hom.:
2
Cov.:
31
AF XY:
0.000168
AC XY:
116
AN XY:
688934
show subpopulations
Gnomad4 AFR exome
AF:
0.00686
Gnomad4 AMR exome
AF:
0.000365
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000253
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.29e-7
Gnomad4 OTH exome
AF:
0.000345
GnomAD4 genome
AF:
0.00191
AC:
291
AN:
152186
Hom.:
2
Cov.:
32
AF XY:
0.00212
AC XY:
158
AN XY:
74404
show subpopulations
Gnomad4 AFR
AF:
0.00640
Gnomad4 AMR
AF:
0.00144
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:
0.00142
Alfa
AF:
0.000214
Hom.:
1
Bravo
AF:
0.00226

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

RFX6-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMay 08, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 04, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.70
CADD
Benign
14
DANN
Benign
0.57

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00038
dbscSNV1_RF
Benign
0.094
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: rs369655782; hg19: chr6-117198667; API