rs2870984

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBS1_SupportingBS2

The NM_016335.6(PRODH):​c.1397C>T​(p.Thr466Met) variant causes a missense change. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T466K) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0037 ( 1 hom., cov: 5)
Exomes 𝑓: 0.0048 ( 26 hom. )

Consequence

PRODH
NM_016335.6 missense

Scores

9
8

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:2U:1B:3O:1

Conservation

PhyloP100: 4.62

Publications

17 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]
PRODH Gene-Disease associations (from GenCC):
  • hyperprolinemia type 1
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Laboratory for Molecular Medicine, Orphanet, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.011515439).
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.00372 (104/27954) while in subpopulation SAS AF = 0.0143 (11/768). AF 95% confidence interval is 0.00803. There are 1 homozygotes in GnomAd4. There are 51 alleles in the male GnomAd4 subpopulation. Median coverage is 5. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
BS2
High Homozygotes in GnomAdExome4 at 26 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PRODHNM_016335.6 linkc.1397C>T p.Thr466Met missense_variant Exon 11 of 14 ENST00000357068.11 NP_057419.5 O43272
PRODHNM_001195226.2 linkc.1073C>T p.Thr358Met missense_variant Exon 11 of 14 NP_001182155.2 O43272
PRODHNM_001368250.2 linkc.1073C>T p.Thr358Met missense_variant Exon 11 of 14 NP_001355179.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PRODHENST00000357068.11 linkc.1397C>T p.Thr466Met missense_variant Exon 11 of 14 1 NM_016335.6 ENSP00000349577.6 O43272
ENSG00000283809ENST00000638240.1 linkc.513+7318G>A intron_variant Intron 4 of 5 5 ENSP00000492446.1 A0A1W2PRQ8

Frequencies

GnomAD3 genomes
AF:
0.00370
AC:
103
AN:
27870
Hom.:
1
Cov.:
5
show subpopulations
Gnomad AFR
AF:
0.00365
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00381
Gnomad ASJ
AF:
0.0133
Gnomad EAS
AF:
0.0108
Gnomad SAS
AF:
0.0132
Gnomad FIN
AF:
0.00141
Gnomad MID
AF:
0.00943
Gnomad NFE
AF:
0.00193
Gnomad OTH
AF:
0.00272
GnomAD2 exomes
AF:
0.00463
AC:
1160
AN:
250538
AF XY:
0.00481
show subpopulations
Gnomad AFR exome
AF:
0.00222
Gnomad AMR exome
AF:
0.00351
Gnomad ASJ exome
AF:
0.00917
Gnomad EAS exome
AF:
0.0144
Gnomad FIN exome
AF:
0.00148
Gnomad NFE exome
AF:
0.00253
Gnomad OTH exome
AF:
0.00522
GnomAD4 exome
AF:
0.00481
AC:
929
AN:
193086
Hom.:
26
Cov.:
0
AF XY:
0.00490
AC XY:
500
AN XY:
102144
show subpopulations
African (AFR)
AF:
0.00227
AC:
18
AN:
7936
American (AMR)
AF:
0.00378
AC:
34
AN:
8988
Ashkenazi Jewish (ASJ)
AF:
0.0106
AC:
66
AN:
6254
East Asian (EAS)
AF:
0.0173
AC:
406
AN:
23408
South Asian (SAS)
AF:
0.00580
AC:
122
AN:
21032
European-Finnish (FIN)
AF:
0.000718
AC:
8
AN:
11136
Middle Eastern (MID)
AF:
0.00792
AC:
8
AN:
1010
European-Non Finnish (NFE)
AF:
0.00203
AC:
207
AN:
101762
Other (OTH)
AF:
0.00519
AC:
60
AN:
11560
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.444
Heterozygous variant carriers
0
34
68
103
137
171
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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:
0.00372
AC:
104
AN:
27954
Hom.:
1
Cov.:
5
AF XY:
0.00399
AC XY:
51
AN XY:
12788
show subpopulations
African (AFR)
AF:
0.00363
AC:
35
AN:
9654
American (AMR)
AF:
0.00379
AC:
10
AN:
2640
Ashkenazi Jewish (ASJ)
AF:
0.0133
AC:
10
AN:
750
East Asian (EAS)
AF:
0.0109
AC:
13
AN:
1198
South Asian (SAS)
AF:
0.0143
AC:
11
AN:
768
European-Finnish (FIN)
AF:
0.00141
AC:
2
AN:
1420
Middle Eastern (MID)
AF:
0.0102
AC:
1
AN:
98
European-Non Finnish (NFE)
AF:
0.00193
AC:
21
AN:
10892
Other (OTH)
AF:
0.00258
AC:
1
AN:
388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.477
Heterozygous variant carriers
0
5
11
16
22
27
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:
0.00292
Hom.:
2
TwinsUK
AF:
0.000809
AC:
3
ALSPAC
AF:
0.00208
AC:
8
ESP6500AA
AF:
0.00318
AC:
14
ESP6500EA
AF:
0.00233
AC:
20
ExAC
AF:
0.00573
AC:
696
EpiCase
AF:
0.00393
EpiControl
AF:
0.00273

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:2Uncertain:1Benign:3Other:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Proline dehydrogenase deficiency Pathogenic:2Benign:1
Jan 06, 2017
Groupe Hospitalier Pitie Salpetriere, UF Genomique du Developpement, Assistance Publique Hopitaux de Paris
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Intellectual disability; epilepsy; schizophrenia -

Oct 01, 2007
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Jan 31, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:2
Jan 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

PRODH: BS1, BS2 -

Jul 15, 2020
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

See Variant Classification Assertion Criteria. -

Proline dehydrogenase deficiency;C1833247:Schizophrenia 4 Uncertain:1
Jun 20, 2023
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:research

- -

Schizophrenia 4 Other:1
Oct 01, 2007
OMIM
Significance:risk factor
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.33
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Benign
0.35
T;.;.;T
Eigen
Uncertain
0.47
Eigen_PC
Uncertain
0.42
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Uncertain
0.95
D;.;D;.
MetaRNN
Benign
0.012
T;T;T;T
MetaSVM
Benign
-0.72
T
PhyloP100
4.6
PrimateAI
Uncertain
0.51
T
PROVEAN
Uncertain
-3.5
.;D;D;D
REVEL
Benign
0.16
Sift
Uncertain
0.010
.;D;D;D
Sift4G
Uncertain
0.017
D;D;D;D
Polyphen
0.85
.;P;P;.
Vest4
0.45
MVP
0.040
MPC
0.39
ClinPred
0.078
T
GERP RS
3.1
gMVP
0.62
Mutation Taster
=92/8
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs2870984; hg19: chr22-18905859; COSMIC: COSV58230408; COSMIC: COSV58230408; API