Genetic Variant SLC51A:p.Pro3Pro (chr3-196216721-G-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6BP7

The NM_152672.6(SLC51A):c.9G>A(p.Pro3Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000099 in 1,575,280 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00045 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000062 ( 1 hom. )

Consequence

SLC51A
NM_152672.6 synonymous

Scores

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -0.382

Variant links:

Genes affected

SLC51A (HGNC:29955): (solute carrier family 51 member A) Predicted to enable protein heterodimerization activity; protein homodimerization activity; and transmembrane transporter activity. Involved in bile acid secretion. Located in basolateral plasma membrane. Implicated in progressive familial intrahepatic cholestasis. [provided by Alliance of Genome Resources, Apr 2022]

SLC51A links:

PCYT1A (HGNC:8754): (phosphate cytidylyltransferase 1A, choline) This gene belongs to the cytidylyltransferase family and is involved in the regulation of phosphatidylcholine biosynthesis. Mutations in this gene are associated with spondylometaphyseal dysplasia with cone-rod dystrophy. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Aug 2015]

PCYT1A links:

LOC105374304 (HGNC:):

LOC105374304 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.58).

BP6

Variant 3-196216721-G-A is Benign according to our data. Variant chr3-196216721-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3053923.Status of the report is no_assertion_criteria_provided, 0 stars.

BP7

Synonymous conserved (PhyloP=-0.382 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC51A	NM_152672.6 link	c.9G>A	p.Pro3Pro	synonymous_variant	Exon 1 of 9	ENST00000296327.10	NP_689885.4	Q86UW1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC51A	ENST00000296327.10 link	c.9G>A	p.Pro3Pro	synonymous_variant	Exon 1 of 9	1	NM_152672.6	ENSP00000296327.5		Q86UW1

Frequencies

GnomAD3 genomes

AF:

0.000447

AC:

AN:

151982

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00140

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000459

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000215

AC:

AN:

185998

Hom.:

AF XY:

0.000169

AC XY:

AN XY:

100796

show subpopulations

Gnomad AFR exome

AF:

0.00240

Gnomad AMR exome

AF:

0.000239

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000798

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000396

Gnomad OTH exome

AF:

0.000410

GnomAD4 exome

AF:

0.0000618

AC:

AN:

1423180

Hom.:

Cov.:

AF XY:

0.0000539

AC XY:

AN XY:

704498

show subpopulations

Gnomad4 AFR exome

AF:

0.00150

Gnomad4 AMR exome

AF:

0.000274

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000246

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000165

Gnomad4 OTH exome

AF:

0.000119

GnomAD4 genome

AF:

0.000447

AC:

AN:

152100

Hom.:

Cov.:

AF XY:

0.000417

AC XY:

AN XY:

74360

show subpopulations

Gnomad4 AFR

AF:

0.00140

Gnomad4 AMR

AF:

0.000458

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000165

Hom.:

Bravo

AF:

0.000570

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

SLC51A-related disorder

Benign:1

Jan 31, 2023

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.58

CADD

Benign

7.2

DANN

Benign

0.93

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