Genetic Variant SPTBN5:p.Ser3638Ile (chr15-41850862-C-A) – 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.10913G>T(p.Ser3638Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000119 in 1,596,986 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

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

Exomes 𝑓: 0.0000090 ( 0 hom. )

Consequence

SPTBN5
NM_016642.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.936

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:

Genome browser will be placed here

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=0.13835788).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SPTBN5	NM_016642.4 link	c.10913G>T	p.Ser3638Ile	missense_variant	Exon 66 of 68	ENST00000320955.8	NP_057726.4	Q9NRC6
SPTBN5	XM_017022299.2 link	c.11093G>T	p.Ser3698Ile	missense_variant	Exon 64 of 66		XP_016877788.1
SPTBN5	XM_017022302.2 link	c.8270G>T	p.Ser2757Ile	missense_variant	Exon 52 of 54		XP_016877791.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SPTBN5	ENST00000320955.8 link	c.10913G>T	p.Ser3638Ile	missense_variant	Exon 66 of 68	1	NM_016642.4	ENSP00000317790.6		Q9NRC6

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152212

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000226

AC:

AN:

221620

Hom.:

AF XY:

0.0000332

AC XY:

AN XY:

120332

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000933

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000201

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000900

AC:

AN:

1444774

Hom.:

Cov.:

AF XY:

0.00000697

AC XY:

AN XY:

717032

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000117

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000634

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152212

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000386

Hom.:

Bravo

AF:

0.0000529

ExAC

AF:

0.0000331

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 05, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.10808G>T (p.S3603I) alteration is located in exon 66 (coding exon 65) of the SPTBN5 gene. This alteration results from a G to T substitution at nucleotide position 10808, causing the serine (S) at amino acid position 3603 to be replaced by an isoleucine (I). 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

0.12

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.59

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.012

Eigen

Benign

-0.21

Eigen_PC

Benign

-0.36

FATHMM_MKL

Benign

0.24

LIST_S2

Benign

0.31

M_CAP

Benign

0.0074

MetaRNN

Benign

0.14

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.4

PrimateAI

Benign

0.31

PROVEAN

Benign

-1.8

REVEL

Benign

0.091

Sift

Uncertain

0.019

Sift4G

Uncertain

0.055

Polyphen

0.95

Vest4

0.23

MVP

0.68

ClinPred

0.21

GERP RS

3.6

Varity_R

0.11

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