rs149587849

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PM5PP3_Moderate

The NM_013328.4(PYCR2):​c.356G>T​(p.Arg119Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,614,040 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R119C) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PYCR2
NM_013328.4 missense

Scores

8
10
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.84
Variant links:
Genes affected
PYCR2 (HGNC:30262): (pyrroline-5-carboxylate reductase 2) This gene belongs to the pyrroline-5-carboxylate reductase family. The encoded mitochondrial protein catalyzes the conversion of pyrroline-5-carboxylate to proline, which is the last step in proline biosynthesis. Alternatively spliced transcript variants have been described for this gene. [provided by RefSeq, Nov 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM1
In a strand (size 4) in uniprot entity P5CR2_HUMAN there are 4 pathogenic changes around while only 0 benign (100%) in NM_013328.4
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr1-225922042-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 429628.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.899

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PYCR2NM_013328.4 linkuse as main transcriptc.356G>T p.Arg119Leu missense_variant 4/7 ENST00000343818.11 NP_037460.2 Q96C36A0A0S2Z5U6
PYCR2NM_001271681.2 linkuse as main transcriptc.318+162G>T intron_variant NP_001258610.1 Q96C36A0A087WTV6
MIR6741NR_106799.1 linkuse as main transcriptn.*38G>T downstream_gene_variant
MIR6741unassigned_transcript_295 use as main transcriptn.*38G>T downstream_gene_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PYCR2ENST00000343818.11 linkuse as main transcriptc.356G>T p.Arg119Leu missense_variant 4/71 NM_013328.4 ENSP00000342502.6 Q96C36
ENSG00000255835ENST00000432920.2 linkuse as main transcriptc.318+162G>T intron_variant 2 ENSP00000414068.2 J3KR12

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152222
Hom.:
0
Cov.:
33
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251100
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135732
show subpopulations
Gnomad AFR exome
AF:
0.0000616
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:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461818
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727198
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152222
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74372
show subpopulations
Gnomad4 AFR
AF:
0.0000483
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:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000624
Hom.:
0
Bravo
AF:
0.00000378
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.96
BayesDel_addAF
Uncertain
0.12
D
BayesDel_noAF
Uncertain
0.12
CADD
Pathogenic
31
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.44
T;D;T;T
Eigen
Uncertain
0.66
Eigen_PC
Uncertain
0.56
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.96
D;D;D;D
M_CAP
Pathogenic
0.33
D
MetaRNN
Pathogenic
0.90
D;D;D;D
MetaSVM
Uncertain
0.22
D
MutationAssessor
Pathogenic
4.3
.;H;.;.
PrimateAI
Uncertain
0.70
T
PROVEAN
Pathogenic
-6.8
.;D;.;.
REVEL
Pathogenic
0.76
Sift
Uncertain
0.0010
.;D;.;.
Sift4G
Pathogenic
0.0
D;D;.;D
Polyphen
1.0
.;D;.;.
Vest4
0.95
MVP
0.83
MPC
1.1
ClinPred
1.0
D
GERP RS
3.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.94
gMVP
0.98

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs149587849; hg19: chr1-226109742; API