rs78374272

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001101426.4(CRPPA):​c.1251+50A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00542 in 1,421,782 control chromosomes in the GnomAD database, including 221 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.024 ( 117 hom., cov: 33)
Exomes 𝑓: 0.0032 ( 104 hom. )

Consequence

CRPPA
NM_001101426.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.629
Variant links:
Genes affected
CRPPA (HGNC:37276): (CDP-L-ribitol pyrophosphorylase A) This gene encodes a 2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase-like protein. Mutations in this gene are the cause of Walker-Warburg syndrome. Alternate splicing results in multiple transcript variants. [provided by RefSeq, May 2012]
CRPPA-AS1 (HGNC:48962): (CRPPA antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).
BP6
Variant 7-16216016-T-C is Benign according to our data. Variant chr7-16216016-T-C is described in ClinVar as [Benign]. Clinvar id is 257462.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0773 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CRPPANM_001101426.4 linkuse as main transcriptc.1251+50A>G intron_variant ENST00000407010.7 NP_001094896.1
CRPPA-AS1NR_038947.1 linkuse as main transcriptn.118+5413T>C intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CRPPAENST00000407010.7 linkuse as main transcriptc.1251+50A>G intron_variant 5 NM_001101426.4 ENSP00000385478 P1A4D126-1
CRPPA-AS1ENST00000438573.5 linkuse as main transcriptn.116+5413T>C intron_variant, non_coding_transcript_variant 1

Frequencies

GnomAD3 genomes
AF:
0.0239
AC:
3632
AN:
152170
Hom.:
117
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0798
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0114
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.000188
Gnomad MID
AF:
0.0158
Gnomad NFE
AF:
0.00166
Gnomad OTH
AF:
0.0153
GnomAD3 exomes
AF:
0.00786
AC:
1414
AN:
179860
Hom.:
37
AF XY:
0.00601
AC XY:
583
AN XY:
96934
show subpopulations
Gnomad AFR exome
AF:
0.0791
Gnomad AMR exome
AF:
0.00649
Gnomad ASJ exome
AF:
0.000426
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000359
Gnomad FIN exome
AF:
0.000340
Gnomad NFE exome
AF:
0.00187
Gnomad OTH exome
AF:
0.00432
GnomAD4 exome
AF:
0.00321
AC:
4075
AN:
1269494
Hom.:
104
Cov.:
17
AF XY:
0.00299
AC XY:
1892
AN XY:
633134
show subpopulations
Gnomad4 AFR exome
AF:
0.0842
Gnomad4 AMR exome
AF:
0.00652
Gnomad4 ASJ exome
AF:
0.000795
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000515
Gnomad4 FIN exome
AF:
0.000321
Gnomad4 NFE exome
AF:
0.00114
Gnomad4 OTH exome
AF:
0.00630
GnomAD4 genome
AF:
0.0238
AC:
3632
AN:
152288
Hom.:
117
Cov.:
33
AF XY:
0.0224
AC XY:
1668
AN XY:
74482
show subpopulations
Gnomad4 AFR
AF:
0.0795
Gnomad4 AMR
AF:
0.0114
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.000188
Gnomad4 NFE
AF:
0.00166
Gnomad4 OTH
AF:
0.0151
Alfa
AF:
0.0111
Hom.:
12
Bravo
AF:
0.0276
Asia WGS
AF:
0.00434
AC:
15
AN:
3468

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxJul 07, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.89
CADD
Benign
0.29
DANN
Benign
0.71
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs78374272; hg19: chr7-16255641; API