rs372055

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_ModerateBP6_Very_Strong

The NM_016335.6(PRODH):​c.1741C>T​(p.Leu581Leu) variant causes a synonymous change. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.000032 ( 0 hom., cov: 0)
Exomes 𝑓: 0.000016 ( 3 hom. )
Failed GnomAD Quality Control

Consequence

PRODH
NM_016335.6 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 6.17

Publications

30 publications found
Variant links:
Genes affected
PRODH (HGNC:9453): (proline dehydrogenase 1) This gene encodes a mitochondrial protein that catalyzes the first step in proline degradation. Mutations in this gene are associated with hyperprolinemia type 1 and susceptibility to schizophrenia 4 (SCZD4). This gene is located on chromosome 22q11.21, a region which has also been associated with the contiguous gene deletion syndromes, DiGeorge and CATCH22. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2010]
DGCR6 (HGNC:2846): (DiGeorge syndrome critical region gene 6) DiGeorge syndrome, and more widely, the CATCH 22 syndrome, are associated with microdeletions in chromosomal region 22q11.2. The product of this gene shares homology with the Drosophila melanogaster gonadal protein, which participates in gonadal and germ cell development, and with the gamma-1 subunit of human laminin. This gene is a candidate for involvement in DiGeorge syndrome pathology and in schizophrenia. [provided by RefSeq, Nov 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.44).
BP6
Variant 22-18913237-G-A is Benign according to our data. Variant chr22-18913237-G-A is described in ClinVar as Benign. ClinVar VariationId is 127267.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PRODHNM_016335.6 linkc.1741C>T p.Leu581Leu synonymous_variant Exon 14 of 14 ENST00000357068.11 NP_057419.5
PRODHNM_001195226.2 linkc.1417C>T p.Leu473Leu synonymous_variant Exon 14 of 14 NP_001182155.2
PRODHNM_001368250.2 linkc.1417C>T p.Leu473Leu synonymous_variant Exon 14 of 14 NP_001355179.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PRODHENST00000357068.11 linkc.1741C>T p.Leu581Leu synonymous_variant Exon 14 of 14 1 NM_016335.6 ENSP00000349577.6
ENSG00000283809ENST00000638240.1 linkc.513+2209G>A intron_variant Intron 4 of 5 5 ENSP00000492446.1

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
0
AN:
31630
Hom.:
0
Cov.:
0
Gnomad AFR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.783
AC:
125626
AN:
160360
AF XY:
0.789
show subpopulations
Gnomad AFR exome
AF:
0.620
Gnomad AMR exome
AF:
0.762
Gnomad ASJ exome
AF:
0.804
Gnomad EAS exome
AF:
0.840
Gnomad FIN exome
AF:
0.756
Gnomad NFE exome
AF:
0.799
Gnomad OTH exome
AF:
0.775
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.0000158
AC:
8
AN:
505186
Hom.:
3
Cov.:
0
AF XY:
0.0000281
AC XY:
7
AN XY:
248788
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000514
AC:
1
AN:
19468
American (AMR)
AF:
0.00
AC:
0
AN:
14488
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
8962
East Asian (EAS)
AF:
0.00
AC:
0
AN:
11970
South Asian (SAS)
AF:
0.00
AC:
0
AN:
26928
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
19358
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
2596
European-Non Finnish (NFE)
AF:
0.0000185
AC:
7
AN:
379274
Other (OTH)
AF:
0.00
AC:
0
AN:
22142
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.275
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.0000315
AC:
1
AN:
31716
Hom.:
0
Cov.:
0
AF XY:
0.0000650
AC XY:
1
AN XY:
15382
show subpopulations
African (AFR)
AF:
0.0000671
AC:
1
AN:
14912
American (AMR)
AF:
0.00
AC:
0
AN:
2172
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
462
East Asian (EAS)
AF:
0.00
AC:
0
AN:
626
South Asian (SAS)
AF:
0.00
AC:
0
AN:
756
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
1796
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
90
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
10508
Other (OTH)
AF:
0.00
AC:
0
AN:
368
Alfa
AF:
0.637
Hom.:
15879
Asia WGS
AF:
0.762
AC:
2649
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Jul 23, 2018
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

May 03, 2020
Genomic Research Center, Shahid Beheshti University of Medical Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Proline dehydrogenase deficiency Benign:2
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Oct 25, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.44
CADD
Benign
7.3
DANN
Benign
0.72
PhyloP100
6.2
Mutation Taster
=99/1
polymorphism (auto)

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: rs372055; hg19: chr22-18900750; COSMIC: COSV58230985; COSMIC: COSV58230985; API