16-8859243-C-G

Variant summary

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

The NM_014316.4(CARHSP1):ā€‹c.86G>Cā€‹(p.Arg29Pro) variant causes a missense change. The variant allele was found at a frequency of 0.00000937 in 1,600,594 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R29H) has been classified as Uncertain significance.

Frequency

Genomes: š‘“ 0.000014 ( 0 hom., cov: 26)
Exomes š‘“: 0.0000089 ( 0 hom. )

Consequence

CARHSP1
NM_014316.4 missense

Scores

3
4
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.61
Variant links:
Genes affected
CARHSP1 (HGNC:17150): (calcium regulated heat stable protein 1) Enables mRNA 3'-UTR binding activity. Predicted to be involved in regulation of mRNA stability. Predicted to be located in P granule and cytosol. Predicted to be active in cytoplasm. Predicted to colocalize with cytoplasmic exosome (RNase complex). [provided by Alliance of Genome Resources, Apr 2022]
PMM2 (HGNC:9115): (phosphomannomutase 2) The protein encoded by this gene catalyzes the isomerization of mannose 6-phosphate to mannose 1-phosphate, which is a precursor to GDP-mannose necessary for the synthesis of dolichol-P-oligosaccharides. Mutations in this gene have been shown to cause defects in glycoprotein biosynthesis, which manifests as carbohydrate-deficient glycoprotein syndrome type I. [provided by RefSeq, Jul 2008]

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/exons MANE UniProt
CARHSP1NM_014316.4 linkuse as main transcriptc.86G>C p.Arg29Pro missense_variant 2/4 ENST00000311052.10
LOC100130283NR_147908.1 linkuse as main transcriptn.635-885C>G intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CARHSP1ENST00000311052.10 linkuse as main transcriptc.86G>C p.Arg29Pro missense_variant 2/41 NM_014316.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000142
AC:
2
AN:
140768
Hom.:
0
Cov.:
26
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000761
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:
0.0000153
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000891
AC:
13
AN:
1459826
Hom.:
0
Cov.:
34
AF XY:
0.00000551
AC XY:
4
AN XY:
726262
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:
0.00000990
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000142
AC:
2
AN:
140768
Hom.:
0
Cov.:
26
AF XY:
0.00
AC XY:
0
AN XY:
67304
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000761
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000153
Gnomad4 OTH
AF:
0.00

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 05, 2023The c.86G>C (p.R29P) alteration is located in exon 2 (coding exon 1) of the CARHSP1 gene. This alteration results from a G to C substitution at nucleotide position 86, causing the arginine (R) at amino acid position 29 to be replaced by a proline (P). 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
0.22
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Pathogenic
0.25
CADD
Uncertain
23
DANN
Benign
0.94
Eigen
Uncertain
0.40
Eigen_PC
Uncertain
0.36
FATHMM_MKL
Pathogenic
1.0
D
M_CAP
Uncertain
0.096
D
MetaRNN
Uncertain
0.47
T
MutationTaster
Benign
1.0
D;D;D;D;D
PROVEAN
Pathogenic
-5.0
D
MVP
0.17
ClinPred
0.65
D
GERP RS
5.1

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: rs140668951; hg19: chr16-8953100; API