Genetic Variant SPCS1:p.Pro41Ser (chr3-52706166-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The ENST00000233025.11(SPCS1):c.121C>T(p.Pro41Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000906 in 1,544,928 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000072 ( 0 hom. )

Consequence

SPCS1
ENST00000233025.11 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.37

Publications

50 publications found

Variant links:

Genes affected

SPCS1 (HGNC:23401): (signal peptidase complex subunit 1) Predicted to enable peptidase activity and ribosome binding activity. Involved in viral protein processing and virion assembly. Is integral component of endoplasmic reticulum membrane. [provided by Alliance of Genome Resources, Apr 2022]

SPCS1 links:

GLT8D1 (HGNC:24870): (glycosyltransferase 8 domain containing 1) This gene encodes a member of the glycosyltransferase family. The specific function of this protein has not been determined. Alternative splicing results in multiple transcript variants of this gene [provided by RefSeq, May 2013]

GLT8D1 Gene-Disease associations (from GenCC):

amyotrophic lateral sclerosis
Inheritance: AD Classification: LIMITED Submitted by: ClinGen

GLT8D1 links:

Genome browser will be placed here

new If you want to explore the variant's impact on the transcript ENST00000233025.11, check out the Mutation Effect Viewer. This is especially useful for frameshift variants or if you want to visualize the effect of exon loss / intron retention.

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.051409304).

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000233025.11. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SPCS1	NM_014041.5	MANE Select	c.-81C>T		5_prime_UTR	Exon 1 of 4	NP_054760.4	A0A5F9YFS9

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SPCS1	ENST00000233025.11	TSL:1	c.121C>T	p.Pro41Ser	missense	Exon 1 of 4	ENSP00000233025.7	Q9Y6A9
SPCS1	ENST00000619898.5	TSL:1 MANE Select	c.-81C>T		5_prime_UTR	Exon 1 of 4	ENSP00000478310.2	A0A5F9YFS9
SPCS1	ENST00000918254.1		c.-81C>T		5_prime_UTR	Exon 1 of 4	ENSP00000588313.1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

151876

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:

0.00

Gnomad SAS

AF:

0.000415

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000718

AC:

AN:

1393052

Hom.:

Cov.:

AF XY:

0.00000436

AC XY:

AN XY:

688224

show subpopulations

African (AFR)

AF:

0.0000630

AC:

AN:

31762

American (AMR)

AF:

0.00

AC:

AN:

36128

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25220

East Asian (EAS)

AF:

0.00

AC:

AN:

36130

South Asian (SAS)

AF:

0.0000125

AC:

AN:

79970

European-Finnish (FIN)

AF:

0.00

AC:

AN:

38650

Middle Eastern (MID)

AF:

0.000187

AC:

AN:

5358

European-Non Finnish (NFE)

AF:

0.00000555

AC:

AN:

1081756

Other (OTH)

AF:

0.00

AC:

AN:

58078

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

AF:

0.0000263

AC:

AN:

151876

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74186

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41336

American (AMR)

AF:

0.00

AC:

AN:

15270

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5150

South Asian (SAS)

AF:

0.000415

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10590

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

67922

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.463

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.00

Hom.:

7982

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.063

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.64

CADD

Benign

0.73

(source)

DANN

Benign

0.94

DEOGEN2

Benign

0.087

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.026

LIST_S2

Benign

0.21

M_CAP

Benign

0.0034

MetaRNN

Benign

0.051

MetaSVM

Benign

-1.0

PhyloP100

-1.4

PrimateAI

Benign

0.34

PROVEAN

Benign

0.090

REVEL

Benign

0.0030

Sift

Benign

0.27

Sift4G

Benign

0.40

PromoterAI

0.10

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

gMVP

0.11

Mutation Taster

=100/0

polymorphism

(source)

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over