chr3-52503392-C-G

Position:

• chr3-52503392-C-G

Variant summary

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

The NM_015136.3(STAB1):​c.743C>G​(p.Ser248Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. 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: STAB1 NM_015136.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.177

Genes affected

STAB1 (HGNC:18628): (stabilin 1) This gene encodes a large, transmembrane receptor protein which may function in angiogenesis, lymphocyte homing, cell adhesion, or receptor scavenging. The protein contains 7 fasciclin, 16 epidermal growth factor (EGF)-like, and 2 laminin-type EGF-like domains as well as a C-type lectin-like hyaluronan-binding Link module. The protein is primarily expressed on sinusoidal endothelial cells of liver, spleen, and lymph node. The receptor has been shown to endocytose ligands such as low density lipoprotein, Gram-positive and Gram-negative bacteria, and advanced glycosylation end products. Supporting its possible role as a scavenger receptor, the protein rapidly cycles between the plasma membrane and early endosomes. [provided by RefSeq, Jul 2008]

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	UniProt
STAB1	NM_015136.3	c.743C>G	p.Ser248Trp	missense_variant	8/69	ENST00000321725.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
STAB1	ENST00000321725.10	c.743C>G	p.Ser248Trp	missense_variant	8/69	1	NM_015136.3	P1
STAB1	ENST00000481607.1	n.798C>G		non_coding_transcript_exon_variant	8/21	1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 33

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

Sep 23, 2023

The c.743C>G (p.S248W) alteration is located in exon 8 (coding exon 8) of the STAB1 gene. This alteration results from a C to G substitution at nucleotide position 743, causing the serine (S) at amino acid position 248 to be replaced by a tryptophan (W). 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	0.16
BayesDel_addAF	Benign	-0.031	T
BayesDel_noAF	Benign	-0.28
CADD	Benign	19
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.50	T
Eigen	Benign	0.15
Eigen_PC	Benign	-0.038
FATHMM_MKL	Benign	0.24	N
LIST_S2	Benign	0.85	D
M_CAP	Benign	0.028	D
MetaRNN	Uncertain	0.62	D
MetaSVM	Benign	-1.1	T
MutationAssessor	Pathogenic	3.0	M
MutationTaster	Benign	1.0	D
PrimateAI	Benign	0.39	T
PROVEAN	Uncertain	-3.0	D
REVEL	Benign	0.19
Sift	Uncertain	0.017	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.55
MutPred		0.44		Gain of catalytic residue at S248 (P = 0.0019);
MVP		0.59
MPC		0.87
ClinPred		0.91	D
GERP RS		3.4
Varity_R		0.15
gMVP		0.64

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr3-52537408;