Genetic Variant SNX27:p.Arg476Gln (chr1-151692948-G-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_001330723.2(SNX27):c.1427G>A(p.Arg476Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,878 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R476L) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

SNX27
NM_001330723.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.19

Publications

7 publications found

Variant links:

Genes affected

SNX27 (HGNC:20073): (sorting nexin 27) This gene encodes a member of the sorting nexin family, a diverse group of cytoplasmic and membrane-associated proteins involved in endocytosis of plasma membrane receptors and protein trafficking through these compartments. All members of this protein family contain a phosphoinositide binding domain (PX domain). A highly similar protein in mouse is responsible for the specific recruitment of an isoform of serotonin 5-hydroxytryptamine 4 receptor into early endosomes, suggesting the analogous role for the human protein. [provided by RefSeq, Jul 2008]

SNX27 Gene-Disease associations (from GenCC):

neurodevelopmental disorder
Inheritance: AR Classification: STRONG Submitted by: PanelApp Australia

SNX27 links:

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ACMG classification

Classification was made for transcript

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

BS2

High AC in GnomAdExome4 at 7 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001330723.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SNX27	NM_001330723.2	MANE Select	c.1427G>A	p.Arg476Gln	missense	Exon 10 of 12	NP_001317652.1	Q96L92-1
SNX27	NM_030918.6		c.1427G>A	p.Arg476Gln	missense	Exon 10 of 12	NP_112180.4
SNX27	NM_001437601.1		c.1124G>A	p.Arg375Gln	missense	Exon 9 of 11	NP_001424530.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SNX27	ENST00000458013.7	TSL:5 MANE Select	c.1427G>A	p.Arg476Gln	missense	Exon 10 of 12	ENSP00000400333.2	Q96L92-1
SNX27	ENST00000368843.8	TSL:1	c.1427G>A	p.Arg476Gln	missense	Exon 10 of 12	ENSP00000357836.3	Q96L92-3
SNX27	ENST00000368838.2	TSL:1	c.1022G>A	p.Arg341Gln	missense	Exon 9 of 10	ENSP00000357831.2	A0A5H1ZRP6

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000119

AC:

AN:

251480

AF XY:

0.0000147

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:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1461878

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727238

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000540

AC:

AN:

1112002

Other (OTH)

AF:

0.00

AC:

AN:

60396

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

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

Cov.:

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Uncertain

0.12

BayesDel_noAF

Uncertain

0.030

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.11

Eigen

Uncertain

0.30

Eigen_PC

Uncertain

0.46

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.96

M_CAP

Benign

0.043

MetaRNN

Uncertain

0.48

MetaSVM

Uncertain

0.042

MutationAssessor

Benign

1.7

PhyloP100

9.2

PrimateAI

Pathogenic

0.85

PROVEAN

Benign

-0.82

REVEL

Uncertain

0.43

Sift

Benign

0.17

Sift4G

Benign

0.40

Polyphen

0.74

Vest4

0.78

MutPred

0.38

Loss of helix (P = 0.0444)

MVP

0.50

MPC

1.7

ClinPred

0.58

GERP RS

5.8

Varity_R

0.19

gMVP

0.65

Mutation Taster

=71/29

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over