chr6-116928913-G-T

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_173560.4(RFX6):​c.2553G>T​(p.Gln851His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000134 in 1,613,868 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000079 ( 0 hom. )

Consequence

RFX6
NM_173560.4 missense

Scores

4
15

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 1.43
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 -7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.009146988).
BP6
Variant 6-116928913-G-T is Benign according to our data. Variant chr6-116928913-G-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 436532.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=2}.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000657 (100/152260) while in subpopulation AFR AF= 0.00226 (94/41548). AF 95% confidence interval is 0.00189. There are 0 homozygotes in gnomad4. There are 43 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
RFX6NM_173560.4 linkuse as main transcriptc.2553G>T p.Gln851His missense_variant 18/19 ENST00000332958.3
RFX6XM_011535589.2 linkuse as main transcriptc.2445G>T p.Gln815His missense_variant 17/18
RFX6XM_017010477.2 linkuse as main transcriptc.2175G>T p.Gln725His missense_variant 17/18

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
RFX6ENST00000332958.3 linkuse as main transcriptc.2553G>T p.Gln851His missense_variant 18/191 NM_173560.4 P1

Frequencies

GnomAD3 genomes
AF:
0.000657
AC:
100
AN:
152142
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00227
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000199
AC:
50
AN:
251430
Hom.:
0
AF XY:
0.000162
AC XY:
22
AN XY:
135882
show subpopulations
Gnomad AFR exome
AF:
0.00228
Gnomad AMR exome
AF:
0.000318
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:
0.00000879
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000794
AC:
116
AN:
1461608
Hom.:
0
Cov.:
32
AF XY:
0.0000660
AC XY:
48
AN XY:
727132
show subpopulations
Gnomad4 AFR exome
AF:
0.00188
Gnomad4 AMR exome
AF:
0.000358
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:
0.0000207
Gnomad4 OTH exome
AF:
0.000215
GnomAD4 genome
AF:
0.000657
AC:
100
AN:
152260
Hom.:
0
Cov.:
32
AF XY:
0.000578
AC XY:
43
AN XY:
74440
show subpopulations
Gnomad4 AFR
AF:
0.00226
Gnomad4 AMR
AF:
0.000327
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000106
Hom.:
0
Bravo
AF:
0.000654
ESP6500AA
AF:
0.00113
AC:
5
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000181
AC:
22

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpMay 10, 2022- -
Uncertain significance, criteria provided, single submitterclinical testingGeneDxJun 07, 2024In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoOct 25, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.47
T
BayesDel_noAF
Benign
-0.46
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.14
T
Eigen
Benign
-0.22
Eigen_PC
Benign
-0.21
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Benign
0.64
T
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.0091
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.7
L
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.43
T
PROVEAN
Benign
-0.73
N
REVEL
Benign
0.11
Sift
Uncertain
0.0040
D
Sift4G
Uncertain
0.033
D
Polyphen
0.91
P
Vest4
0.35
MutPred
0.073
Gain of glycosylation at S847 (P = 0.1409);
MVP
0.40
MPC
0.057
ClinPred
0.027
T
GERP RS
1.2
Varity_R
0.092
gMVP
0.43

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: rs145117989; hg19: chr6-117250076; API