17-76047955-T-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_014230.4(SRP68):ā€‹c.1093A>Gā€‹(p.Ile365Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000762 in 1,575,822 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000013 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000070 ( 0 hom. )

Consequence

SRP68
NM_014230.4 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.304
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 Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.032103032).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SRP68NM_014230.4 linkc.1093A>G p.Ile365Val missense_variant Exon 10 of 16 ENST00000307877.7 NP_055045.2 Q9UHB9-1
SRP68NM_001260502.2 linkc.979A>G p.Ile327Val missense_variant Exon 9 of 15 NP_001247431.1 Q9UHB9-4
SRP68NM_001260503.2 linkc.76A>G p.Ile26Val missense_variant Exon 3 of 9 NP_001247432.1 Q9UHB9-3
SRP68NR_048541.2 linkn.1015A>G non_coding_transcript_exon_variant Exon 9 of 15

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SRP68ENST00000307877.7 linkc.1093A>G p.Ile365Val missense_variant Exon 10 of 16 1 NM_014230.4 ENSP00000312066.1 Q9UHB9-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152120
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000702
AC:
10
AN:
1423702
Hom.:
0
Cov.:
27
AF XY:
0.00000565
AC XY:
4
AN XY:
707950
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:
0.00000918
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152120
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74324
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
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
Dec 18, 2023
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.1093A>G (p.I365V) alteration is located in exon 10 (coding exon 10) of the SRP68 gene. This alteration results from a A to G substitution at nucleotide position 1093, causing the isoleucine (I) at amino acid position 365 to be replaced by a valine (V). 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
0.059
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.69
CADD
Benign
1.4
DANN
Benign
0.24
DEOGEN2
Benign
0.012
.;T;.
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.12
N
LIST_S2
Benign
0.81
T;T;T
M_CAP
Benign
0.0022
T
MetaRNN
Benign
0.032
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.34
.;N;.
PrimateAI
Benign
0.28
T
PROVEAN
Benign
0.19
.;N;N
REVEL
Benign
0.038
Sift
Benign
0.47
.;T;T
Sift4G
Benign
0.30
T;T;T
Polyphen
0.0010
.;B;.
Vest4
0.055
MutPred
0.29
.;Loss of loop (P = 0.0073);.;
MVP
0.24
MPC
0.45
ClinPred
0.036
T
GERP RS
-1.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.038
gMVP
0.047

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.

Other links and lift over

dbSNP: rs2066643993; hg19: chr17-74044036; API