chr6-116877418-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_173560.4(RFX6):c.143C>T(p.Ala48Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000512 in 1,600,824 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A48G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00031 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

RFX6
NM_173560.4 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: -1.57

Publications

0 publications found

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]

RFX6 Gene-Disease associations (from GenCC):

monogenic diabetes
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
Martinez-Frias syndrome
Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
hypoplastic pancreas-intestinal atresia-hypoplastic gallbalder syndrome
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
Mitchell-Riley syndrome
Inheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp

RFX6 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0061531067).

BP6

Variant 6-116877418-C-T is Benign according to our data. Variant chr6-116877418-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 917471.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000309 (47/152272) while in subpopulation AFR AF = 0.00113 (47/41562). AF 95% confidence interval is 0.000873. There are 0 homozygotes in GnomAd4. There are 25 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_173560.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RFX6	NM_173560.4	MANE Select	c.143C>T	p.Ala48Val	missense	Exon 1 of 19	NP_775831.2	Q8HWS3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RFX6	ENST00000332958.3	TSL:1 MANE Select	c.143C>T	p.Ala48Val	missense	Exon 1 of 19	ENSP00000332208.2	Q8HWS3
	RFX6	ENST00000487683.5	TSL:5	n.207C>T		non_coding_transcript_exon	Exon 1 of 14

Frequencies

GnomAD3 genomes

AF:

0.000309

AC:

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00113

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000122

AC:

AN:

221722

AF XY:

0.000108

show subpopulations

Gnomad AFR exome

AF:

0.00178

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000601

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000102

Gnomad OTH exome

AF:

0.000179

GnomAD4 exome

AF:

0.0000242

AC:

AN:

1448552

Hom.:

Cov.:

AF XY:

0.0000236

AC XY:

AN XY:

719152

show subpopulations

African (AFR)

AF:

0.000934

AC:

AN:

33206

American (AMR)

AF:

0.00

AC:

AN:

43058

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25842

East Asian (EAS)

AF:

0.00

AC:

AN:

39058

South Asian (SAS)

AF:

0.0000119

AC:

AN:

83964

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52276

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5754

European-Non Finnish (NFE)

AF:

9.04e-7

AC:

AN:

1105600

Other (OTH)

AF:

0.0000334

AC:

AN:

59794

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.495

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000309

AC:

AN:

152272

Hom.:

Cov.:

AF XY:

0.000336

AC XY:

AN XY:

74454

show subpopulations

African (AFR)

AF:

0.00113

AC:

AN:

41562

American (AMR)

AF:

0.00

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5156

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68012

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000121

Hom.:

Bravo

AF:

0.000325

ESP6500AA

AF:

0.00114

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000116

AC:

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Monogenic diabetes (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.083

BayesDel_addAF

Benign

-0.63

BayesDel_noAF

Benign

-0.70

CADD

Benign

2.9

(source)

DANN

Benign

0.83

DEOGEN2

Benign

0.11

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.021

LIST_S2

Benign

0.45

M_CAP

Benign

0.015

MetaRNN

Benign

0.0062

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.0

PhyloP100

-1.6

PrimateAI

Benign

0.40

PROVEAN

Benign

0.0

REVEL

Benign

0.056

Sift

Benign

0.35

Sift4G

Benign

0.80

Polyphen

0.0020

Vest4

0.17

MVP

0.040

MPC

0.49

ClinPred

0.0070

GERP RS

-3.6

PromoterAI

0.013

Neutral

(source)

Varity_R

0.027

gMVP

0.29

Mutation Taster

=95/5

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over