rs780490905

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_006371.5(CRTAP):​c.17G>T​(p.Arg6Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000781 in 1,459,814 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. R6R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000080 ( 0 hom. )

Consequence

CRTAP
NM_006371.5 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.118

Publications

0 publications found
Variant links:
Genes affected
CRTAP (HGNC:2379): (cartilage associated protein) The protein encoded by this gene is similar to the chicken and mouse CRTAP genes. The encoded protein is a scaffolding protein that may influence the activity of at least one member of the cytohesin/ARNO family in response to specific cellular stimuli. Defects in this gene are associated with osteogenesis imperfecta, a connective tissue disorder characterized by bone fragility and low bone mass. [provided by RefSeq, Jul 2008]
CRTAP Gene-Disease associations (from GenCC):
  • osteogenesis imperfecta type 7
    Inheritance: AR Classification: STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • osteogenesis imperfecta type 2
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • osteogenesis imperfecta type 3
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • osteogenesis imperfecta type 4
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.08677623).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006371.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CRTAP
NM_006371.5
MANE Select
c.17G>Tp.Arg6Leu
missense
Exon 1 of 7NP_006362.1O75718
CRTAP
NM_001393363.1
c.17G>Tp.Arg6Leu
missense
Exon 1 of 6NP_001380292.1
CRTAP
NM_001393364.1
c.17G>Tp.Arg6Leu
missense
Exon 1 of 6NP_001380293.1C9JP16

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CRTAP
ENST00000320954.11
TSL:1 MANE Select
c.17G>Tp.Arg6Leu
missense
Exon 1 of 7ENSP00000323696.5O75718
CRTAP
ENST00000946650.1
c.17G>Tp.Arg6Leu
missense
Exon 1 of 7ENSP00000616709.1
CRTAP
ENST00000946648.1
c.17G>Tp.Arg6Leu
missense
Exon 1 of 7ENSP00000616707.1

Frequencies

GnomAD3 genomes
AF:
0.0000592
AC:
9
AN:
151936
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.000103
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000135
AC:
1
AN:
73804
AF XY:
0.0000232
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000344
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000803
AC:
105
AN:
1307878
Hom.:
0
Cov.:
31
AF XY:
0.0000790
AC XY:
51
AN XY:
645616
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26214
American (AMR)
AF:
0.00
AC:
0
AN:
23184
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
22496
East Asian (EAS)
AF:
0.00
AC:
0
AN:
28758
South Asian (SAS)
AF:
0.0000283
AC:
2
AN:
70566
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
32854
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4578
European-Non Finnish (NFE)
AF:
0.0000947
AC:
99
AN:
1045118
Other (OTH)
AF:
0.0000739
AC:
4
AN:
54110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.468
Heterozygous variant carriers
0
5
10
14
19
24
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000592
AC:
9
AN:
151936
Hom.:
0
Cov.:
34
AF XY:
0.0000404
AC XY:
3
AN XY:
74230
show subpopulations
African (AFR)
AF:
0.0000483
AC:
2
AN:
41390
American (AMR)
AF:
0.00
AC:
0
AN:
15256
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5160
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10576
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.000103
AC:
7
AN:
67946
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000378
ExAC
AF:
0.0000127
AC:
1

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)
-
1
-
Osteogenesis imperfecta type 7 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.49
CADD
Benign
15
DANN
Benign
0.76
DEOGEN2
Benign
0.096
T
Eigen
Benign
-1.0
Eigen_PC
Benign
-1.0
FATHMM_MKL
Benign
0.096
N
LIST_S2
Benign
0.75
T
M_CAP
Uncertain
0.15
D
MetaRNN
Benign
0.087
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.4
L
PhyloP100
0.12
PrimateAI
Uncertain
0.75
T
PROVEAN
Benign
-0.26
N
REVEL
Benign
0.029
Sift
Benign
0.091
T
Sift4G
Benign
0.26
T
Polyphen
0.0060
B
Vest4
0.16
MutPred
0.31
Loss of glycosylation at P3 (P = 0.0312)
MVP
0.30
MPC
0.14
ClinPred
0.051
T
GERP RS
1.9
PromoterAI
-0.0027
Neutral
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
3.0
Varity_R
0.082
gMVP
0.51
Mutation Taster
=91/9
polymorphism

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

Other links and lift over

dbSNP: rs780490905; hg19: chr3-33155586; API