rs780341051

Variant summary

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

The NM_001166222.2(CARNS1):​c.454G>A​(p.Ala152Thr) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

CARNS1
NM_001166222.2 missense

Scores

3
7
9

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.71
Variant links:
Genes affected
CARNS1 (HGNC:29268): (carnosine synthase 1) CARNS1 (EC 6.3.2.11), a member of the ATP-grasp family of ATPases, catalyzes the formation of carnosine (beta-alanyl-L-histidine) and homocarnosine (gamma-aminobutyryl-L-histidine), which are found mainly in skeletal muscle and the central nervous system, respectively (Drozak et al., 2010 [PubMed 20097752]).[supplied by OMIM, Apr 2010]
PPP1CA (HGNC:9281): (protein phosphatase 1 catalytic subunit alpha) The protein encoded by this gene is one of the three catalytic subunits of protein phosphatase 1 (PP1). This broadly expressed gene encodes the alpha subunit of the PP1 complex that associates with over 200 regulatory proteins to form holoenzymes which dephosphorylate their biological targets with high specificity. PP1 is a serine/threonine specific protein phosphatase known to be involved in the regulation of a variety of cellular processes, such as cell division, glycogen metabolism, muscle contractility, protein synthesis, and HIV-1 viral transcription. Increased PP1 activity has been observed in the end stage of heart failure. Studies suggest that PP1 is an important regulator of cardiac function and that PP1 deregulation is implicated in diabetes and multiple types of cancer. Three alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2020]

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
CARNS1NM_001166222.2 linkc.454G>A p.Ala152Thr missense_variant Exon 5 of 10 ENST00000687366.1 NP_001159694.1 A5YM72-5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CARNS1ENST00000687366.1 linkc.454G>A p.Ala152Thr missense_variant Exon 5 of 10 NM_001166222.2 ENSP00000510668.1 A5YM72-5

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1448692
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
719660
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.72
BayesDel_addAF
Uncertain
0.045
T
BayesDel_noAF
Benign
-0.17
CADD
Pathogenic
30
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.013
.;T;.
Eigen
Uncertain
0.49
Eigen_PC
Uncertain
0.49
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.83
T;D;T
M_CAP
Benign
0.038
D
MetaRNN
Uncertain
0.51
D;D;D
MetaSVM
Benign
-0.63
T
MutationAssessor
Benign
0.81
.;L;.
PrimateAI
Uncertain
0.74
T
PROVEAN
Benign
-1.6
N;N;N
REVEL
Benign
0.23
Sift
Uncertain
0.0010
D;D;D
Sift4G
Uncertain
0.0090
D;D;D
Polyphen
0.99
.;D;.
Vest4
0.65
MutPred
0.51
.;Gain of sheet (P = 0.0344);.;
MVP
0.67
MPC
0.49
ClinPred
0.90
D
GERP RS
4.0
Varity_R
0.15
gMVP
0.59

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.19
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: rs780341051; hg19: chr11-67186316; API