17-76043941-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_014230.4(SRP68):ā€‹c.1412A>Gā€‹(p.Gln471Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000499 in 1,604,580 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000026 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000028 ( 0 hom. )

Consequence

SRP68
NM_014230.4 missense

Scores

4
5
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.67
Variant links:
Genes affected
SRP68 (HGNC:11302): (signal recognition particle 68) This gene encodes a subunit of the signal recognition particle (SRP). The SRP is a ribonucleoprotein complex that transports secreted and membrane proteins to the endoplasmic reticulum for processing. The complex includes a 7S RNA and six protein subunits. The encoded protein is the 68kDa component of the SRP, and forms a heterodimer with the 72kDa subunit that is required for SRP function. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene, and three pseudogenes of this gene are located within the Smith-Magenis syndrome region on chromosome 17. [provided by RefSeq, May 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SRP68NM_014230.4 linkc.1412A>G p.Gln471Arg missense_variant Exon 13 of 16 ENST00000307877.7 NP_055045.2 Q9UHB9-1
SRP68NM_001260502.2 linkc.1298A>G p.Gln433Arg missense_variant Exon 12 of 15 NP_001247431.1 Q9UHB9-4
SRP68NM_001260503.2 linkc.395A>G p.Gln132Arg missense_variant Exon 6 of 9 NP_001247432.1 Q9UHB9-3
SRP68NR_048541.2 linkn.1334A>G non_coding_transcript_exon_variant Exon 12 of 15

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SRP68ENST00000307877.7 linkc.1412A>G p.Gln471Arg missense_variant Exon 13 of 16 1 NM_014230.4 ENSP00000312066.1 Q9UHB9-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152188
Hom.:
0
Cov.:
32
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000275
AC:
4
AN:
1452392
Hom.:
0
Cov.:
32
AF XY:
0.00000415
AC XY:
3
AN XY:
722496
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000361
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152188
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74338
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000452
Hom.:
0
Bravo
AF:
0.0000151

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Jul 10, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.1412A>G (p.Q471R) alteration is located in exon 13 (coding exon 13) of the SRP68 gene. This alteration results from a A to G substitution at nucleotide position 1412, causing the glutamine (Q) at amino acid position 471 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
0.21
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.14
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.036
.;T;.
Eigen
Uncertain
0.47
Eigen_PC
Uncertain
0.56
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.93
D;D;D
M_CAP
Benign
0.020
T
MetaRNN
Uncertain
0.63
D;D;D
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.5
.;L;.
PrimateAI
Pathogenic
0.86
D
PROVEAN
Benign
-1.5
.;N;N
REVEL
Benign
0.23
Sift
Benign
0.56
.;T;T
Sift4G
Benign
0.29
T;T;T
Polyphen
0.97
.;D;.
Vest4
0.74
MutPred
0.67
.;Gain of MoRF binding (P = 0.0168);.;
MVP
0.84
MPC
0.73
ClinPred
0.35
T
GERP RS
6.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.7
Varity_R
0.22
gMVP
0.65

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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.

Other links and lift over

dbSNP: rs1284387574; hg19: chr17-74040022; API