6-157909983-T-C

Position:

• chr6-157909983-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_016224.5(SNX9):​c.907T>C​(p.Ser303Pro) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: SNX9 NM_016224.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.57

Genes affected

SNX9 (HGNC:14973): (sorting nexin 9) This gene encodes a member of the sorting nexin family. Members of this family contain a phosphoinositide binding domain, and are involved in intracellular trafficking. The encoded protein does not contain a coiled coil region, like some family members, but does contain a SRC homology domain near its N-terminus. The encoded protein is reported to have a variety of interaction partners, including of adaptor protein 2 , dynamin, tyrosine kinase non-receptor 2, Wiskott-Aldrich syndrome-like, and ARP3 actin-related protein 3. The encoded protein is implicated in several stages of intracellular trafficking, including endocytosis, macropinocytosis, and F-actin nucleation. [provided by RefSeq, Jul 2013]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SNX9	NM_016224.5	c.907T>C	p.Ser303Pro	missense_variant	9/18	ENST00000392185.8	NP_057308.1
SNX9	XM_011535886.4	c.625T>C	p.Ser209Pro	missense_variant	6/15		XP_011534188.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SNX9	ENST00000392185.8	c.907T>C	p.Ser303Pro	missense_variant	9/18	1	NM_016224.5	ENSP00000376024	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 13, 2023

The c.907T>C (p.S303P) alteration is located in exon 9 (coding exon 9) of the SNX9 gene. This alteration results from a T to C substitution at nucleotide position 907, causing the serine (S) at amino acid position 303 to be replaced by a proline (P). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.21
BayesDel_addAF	Benign	-0.078	T
BayesDel_noAF	Benign	-0.35
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.074	T
Eigen	Uncertain	0.29
Eigen_PC	Uncertain	0.38
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Uncertain	0.87	D
M_CAP	Benign	0.010	T
MetaRNN	Uncertain	0.51	D
MetaSVM	Benign	-0.91	T
MutationAssessor	Benign	-1.1	N
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.65	T
PROVEAN	Benign	-0.19	N
REVEL	Benign	0.20
Sift	Benign	0.46	T
Sift4G	Benign	0.15	T
Polyphen		1.0	D
Vest4		0.61
MutPred		0.61		Loss of phosphorylation at S303 (P = 0.1721);
MVP		0.56
MPC		1.8
ClinPred		0.75	D
GERP RS		4.4
Varity_R		0.23
gMVP		0.76

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.080		Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr6-158331015;