dbSNP rs751280287: SIX3:p.Ser296Trp (chr2-44944648-C-G) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS1

The NM_005413.4(SIX3):c.887C>G(p.Ser296Trp) variant causes a missense change. The variant allele was found at a frequency of 0.000119 in 1,574,258 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

SIX3
NM_005413.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 4.47

Publications

0 publications found

Variant links:

Genes affected

SIX3 (HGNC:10889): (SIX homeobox 3) This gene encodes a member of the sine oculis homeobox transcription factor family. The encoded protein plays a role in eye development. Mutations in this gene have been associated with holoprosencephaly type 2. [provided by RefSeq, Oct 2009]

SIX3 links:

SIX3-AS1 (HGNC:40532): (SIX3 antisense RNA 1)

SIX3-AS1 links:

ENSG00000225156 (HGNC:):

ENSG00000225156 links:

Genome browser will be placed here

new If you want to explore the variant's impact on the transcript NM_005413.4, check out the Mutation Effect Viewer. This is especially useful for frameshift variants or if you want to visualize the effect of exon loss / intron retention.

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS1

Variant frequency is greater than expected in population nfe. GnomAdExome4 allele frequency = 0.000127 (181/1422054) while in subpopulation NFE AF = 0.00016 (176/1099924). AF 95% confidence interval is 0.00014. There are 0 homozygotes in GnomAdExome4. There are 91 alleles in the male GnomAdExome4 subpopulation. Median coverage is 31. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005413.4. 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
	SIX3	NM_005413.4	MANE Select	c.887C>G	p.Ser296Trp	missense	Exon 2 of 2	NP_005404.1	O95343

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SIX3	ENST00000260653.5	TSL:1 MANE Select	c.887C>G	p.Ser296Trp	missense	Exon 2 of 2	ENSP00000260653.3	O95343
SIX3-AS1	ENST00000760561.1		n.104G>C		non_coding_transcript_exon	Exon 1 of 2
ENSG00000225156	ENST00000760330.1		n.135+10272C>G		intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000809

AC:

AN:

185338

AF XY:

0.0000971

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000132

Gnomad NFE exome

AF:

0.000170

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000127

AC:

181

AN:

1422054

Hom.:

Cov.:

AF XY:

0.000129

AC XY:

AN XY:

705998

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32654

American (AMR)

AF:

0.00

AC:

AN:

42062

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25674

East Asian (EAS)

AF:

0.00

AC:

AN:

37658

South Asian (SAS)

AF:

0.00

AC:

AN:

83128

European-Finnish (FIN)

AF:

0.0000278

AC:

AN:

36020

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5738

European-Non Finnish (NFE)

AF:

0.000160

AC:

176

AN:

1099924

Other (OTH)

AF:

0.0000676

AC:

AN:

59196

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

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:

0.0000394

AC:

AN:

152204

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74358

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41458

American (AMR)

AF:

0.000131

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68032

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

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:

0.00

Hom.:

Bravo

AF:

0.0000491

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Holoprosencephaly 2 (1)

Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.46

BayesDel_addAF

Benign

-0.060

BayesDel_noAF

Uncertain

-0.060

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.60

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.33

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.91

M_CAP

Pathogenic

0.91

MetaRNN

Uncertain

0.55

MetaSVM

Uncertain

0.68

MutationAssessor

Benign

0.69

PhyloP100

4.5

PrimateAI

Pathogenic

0.92

PROVEAN

Benign

-2.3

REVEL

Uncertain

0.60

Sift

Uncertain

0.0050

Sift4G

Uncertain

0.0020

Varity_R

0.41

gMVP

0.76

Mutation Taster

=41/59

disease causing

(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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

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