rs536787679

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_152672.6(SLC51A):​c.8C>G​(p.Pro3Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000019 in 1,574,980 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P3S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

SLC51A
NM_152672.6 missense

Scores

1
3
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.347

Publications

0 publications found
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]
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 Gene-Disease associations (from GenCC):
  • spondylometaphyseal dysplasia-cone-rod dystrophy syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), ClinGen, Orphanet
  • Leber congenital amaurosis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.111702114).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SLC51ANM_152672.6 linkc.8C>G p.Pro3Arg missense_variant Exon 1 of 9 ENST00000296327.10 NP_689885.4 Q86UW1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SLC51AENST00000296327.10 linkc.8C>G p.Pro3Arg missense_variant Exon 1 of 9 1 NM_152672.6 ENSP00000296327.5 Q86UW1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152194
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000540
AC:
1
AN:
185210
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000342
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
7.03e-7
AC:
1
AN:
1422668
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
704216
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
32638
American (AMR)
AF:
0.00
AC:
0
AN:
40034
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25482
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37606
South Asian (SAS)
AF:
0.00
AC:
0
AN:
81268
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49138
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5712
European-Non Finnish (NFE)
AF:
9.16e-7
AC:
1
AN:
1091996
Other (OTH)
AF:
0.00
AC:
0
AN:
58794
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000131
AC:
2
AN:
152312
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74460
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41584
American (AMR)
AF:
0.0000654
AC:
1
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5162
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68022
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Feb 16, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.8C>G (p.P3R) alteration is located in exon 1 (coding exon 1) of the SLC51A gene. This alteration results from a C to G substitution at nucleotide position 8, causing the proline (P) at amino acid position 3 to be replaced by an arginine (R). 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
0.082
BayesDel_addAF
Benign
-0.099
T
BayesDel_noAF
Benign
-0.38
CADD
Benign
17
DANN
Benign
0.90
DEOGEN2
Benign
0.011
.;T
Eigen
Benign
0.00055
Eigen_PC
Benign
-0.060
FATHMM_MKL
Benign
0.30
N
LIST_S2
Benign
0.51
T;T
M_CAP
Benign
0.017
T
MetaRNN
Benign
0.11
T;T
MetaSVM
Benign
-0.84
T
MutationAssessor
Uncertain
2.6
.;M
PhyloP100
0.35
PrimateAI
Uncertain
0.50
T
PROVEAN
Pathogenic
-8.7
D;N
REVEL
Benign
0.074
Sift
Benign
0.038
.;D
Sift4G
Uncertain
0.033
.;D
Polyphen
0.66
.;P
Vest4
0.26
MutPred
0.43
.;Gain of MoRF binding (P = 0.0011);
MVP
0.41
MPC
0.35
ClinPred
0.53
D
GERP RS
3.2
PromoterAI
-0.054
Neutral
Varity_R
0.065
gMVP
0.51
Mutation Taster
=90/10
polymorphism

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

Other links and lift over

dbSNP: rs536787679; hg19: chr3-195943591; API