10-97884302-C-T

Variant summary

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

The NM_018058.7(CRTAC1):​c.1536G>A​(p.Met512Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000644 in 1,553,316 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000057 ( 0 hom. )

Consequence

CRTAC1
NM_018058.7 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.280
Variant links:
Genes affected
CRTAC1 (HGNC:14882): (cartilage acidic protein 1) This gene encodes a glycosylated extracellular matrix protein that is found in the interterritorial matrix of articular deep zone cartilage. This protein is used as a marker to distinguish chondrocytes from osteoblasts and mesenchymal stem cells in culture. The presence of FG-GAP motifs and an RGD integrin-binding motif suggests that this protein may be involved in cell-cell or cell-matrix interactions. Copy number alterations in this gene have been observed in neurofibromatosis type 1-associated glomus tumors. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2011]

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=0.053517133).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CRTAC1NM_018058.7 linkuse as main transcriptc.1536G>A p.Met512Ile missense_variant 12/15 ENST00000370597.8 NP_060528.3 Q9NQ79-1
CRTAC1NM_001206528.3 linkuse as main transcriptc.1536G>A p.Met512Ile missense_variant 12/15 NP_001193457.1 Q9NQ79-2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CRTAC1ENST00000370597.8 linkuse as main transcriptc.1536G>A p.Met512Ile missense_variant 12/151 NM_018058.7 ENSP00000359629.3 Q9NQ79-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152228
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000626
AC:
1
AN:
159640
Hom.:
0
AF XY:
0.0000119
AC XY:
1
AN XY:
84042
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000160
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000571
AC:
8
AN:
1401088
Hom.:
0
Cov.:
31
AF XY:
0.00000434
AC XY:
3
AN XY:
691296
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:
0.00000741
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152228
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74366
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000564
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.00000921
AC:
1

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 GeneticsJan 10, 2022The c.1536G>A (p.M512I) alteration is located in exon 12 (coding exon 12) of the CRTAC1 gene. This alteration results from a G to A substitution at nucleotide position 1536, causing the methionine (M) at amino acid position 512 to be replaced by an isoleucine (I). 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
0.14
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.47
CADD
Benign
19
DANN
Benign
0.96
DEOGEN2
Benign
0.020
T;T;.;T
Eigen
Benign
-0.57
Eigen_PC
Benign
-0.36
FATHMM_MKL
Benign
0.18
N
LIST_S2
Benign
0.77
T;T;T;T
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.054
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.30
.;N;N;.
PrimateAI
Benign
0.42
T
PROVEAN
Benign
-1.1
N;N;N;N
REVEL
Benign
0.11
Sift
Benign
0.26
T;T;T;T
Sift4G
Benign
0.45
T;T;T;T
Polyphen
0.0010
B;B;B;.
Vest4
0.18, 0.19, 0.19
MutPred
0.41
.;Loss of disorder (P = 0.0691);Loss of disorder (P = 0.0691);.;
MVP
0.39
MPC
0.37
ClinPred
0.14
T
GERP RS
4.6
Varity_R
0.077
gMVP
0.21

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: rs747634840; hg19: chr10-99644059; API