Genetic Variant SPTBN5:p.Ser3654Thr (chr15-41849920-C-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_016642.4(SPTBN5):c.10961G>C(p.Ser3654Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000313 in 1,597,378 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

SPTBN5
NM_016642.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.931

Variant links:

Genes affected

SPTBN5 (HGNC:15680): (spectrin beta, non-erythrocytic 5) Enables several functions, including cytoskeletal protein binding activity; dynein intermediate chain binding activity; and identical protein binding activity. Acts upstream of or within Golgi organization and lysosomal transport. Located in cytoplasm; photoreceptor connecting cilium; and photoreceptor disc membrane. [provided by Alliance of Genome Resources, Apr 2022]

SPTBN5 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.07220864).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SPTBN5	NM_016642.4 link	c.10961G>C	p.Ser3654Thr	missense_variant	Exon 67 of 68	ENST00000320955.8	NP_057726.4	Q9NRC6
SPTBN5	XM_017022299.2 link	c.11141G>C	p.Ser3714Thr	missense_variant	Exon 65 of 66		XP_016877788.1
SPTBN5	XM_017022302.2 link	c.8318G>C	p.Ser2773Thr	missense_variant	Exon 53 of 54		XP_016877791.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SPTBN5	ENST00000320955.8 link	c.10961G>C	p.Ser3654Thr	missense_variant	Exon 67 of 68	1	NM_016642.4	ENSP00000317790.6		Q9NRC6
SPTBN5	ENST00000563899.1 link	n.653G>C		non_coding_transcript_exon_variant	Exon 1 of 2	2

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152224

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

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

GnomAD4 exome

AF:

0.00000277

AC:

AN:

1445154

Hom.:

Cov.:

AF XY:

0.00000139

AC XY:

AN XY:

716932

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000512

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000181

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152224

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74386

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 23, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.10856G>C (p.S3619T) alteration is located in exon 67 (coding exon 66) of the SPTBN5 gene. This alteration results from a G to C substitution at nucleotide position 10856, causing the serine (S) at amino acid position 3619 to be replaced by a threonine (T). 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

0.086

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.61

CADD

Benign

0.71

DANN

Benign

0.48

DEOGEN2

Benign

0.0094

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.28

M_CAP

Benign

0.015

MetaRNN

Benign

0.072

MetaSVM

Benign

-0.99

MutationAssessor

Benign

0.76

PrimateAI

Benign

0.38

PROVEAN

Benign

-0.71

REVEL

Benign

0.080

Sift

Benign

1.0

Sift4G

Uncertain

0.021

Polyphen

0.60

Vest4

0.097

MutPred

0.13

Loss of ubiquitination at K3651 (P = 0.043);

MVP

0.54

ClinPred

0.086

GERP RS

1.5

Varity_R

0.023

gMVP

0.16

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over