8-143605747-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_023078.6(PYCR3):​c.778G>A​(p.Ala260Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000317 in 1,609,398 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

PYCR3
NM_023078.6 missense

Scores

8
8
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.06
Variant links:
Genes affected
PYCR3 (HGNC:25846): (pyrroline-5-carboxylate reductase 3) This gene encodes a protein that belongs to the pyrroline-5-carboxylate reductase family of enzymes. Members of this family catalyze the final step in proline biosynthesis, converting pyrroline-5-carboxylate to proline. Glutamate and ornithine are precursors in the synthesis of proline. The protein encoded by this gene is a cytoplasmic enzyme involved in the biosynthesis of proline from ornithine. [provided by RefSeq, Aug 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.79

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PYCR3NM_023078.6 linkuse as main transcriptc.778G>A p.Ala260Thr missense_variant 6/6 ENST00000495276.6 NP_075566.3 Q53H96-1A0A0A0MQS1
PYCR3NM_001329866.3 linkuse as main transcriptc.718G>A p.Ala240Thr missense_variant 6/6 NP_001316795.2 Q53H96-2B4DGI7
PYCR3NR_138144.3 linkuse as main transcriptn.918G>A non_coding_transcript_exon_variant 7/7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PYCR3ENST00000495276.6 linkuse as main transcriptc.778G>A p.Ala260Thr missense_variant 6/61 NM_023078.6 ENSP00000480945.1 Q53H96-1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152192
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000579
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:
0.000125
AC:
31
AN:
247326
Hom.:
0
AF XY:
0.0000819
AC XY:
11
AN XY:
134390
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000406
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000873
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000903
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000316
AC:
46
AN:
1457088
Hom.:
0
Cov.:
31
AF XY:
0.0000221
AC XY:
16
AN XY:
724282
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000359
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000404
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000811
Gnomad4 OTH exome
AF:
0.0000665
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152310
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74468
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.0000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000580
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000491
ExAC
AF:
0.0000990
AC:
12
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 28, 2023The c.814G>A (p.A272T) alteration is located in exon 6 (coding exon 6) of the PYCRL gene. This alteration results from a G to A substitution at nucleotide position 814, causing the alanine (A) at amino acid position 272 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.36
BayesDel_addAF
Uncertain
0.086
D
BayesDel_noAF
Pathogenic
0.28
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.13
T;D;.;D
Eigen
Uncertain
0.59
Eigen_PC
Uncertain
0.49
FATHMM_MKL
Uncertain
0.94
D
M_CAP
Pathogenic
0.60
D
MetaRNN
Pathogenic
0.79
D;D;D;D
MetaSVM
Pathogenic
0.80
D
MutationAssessor
Uncertain
2.6
.;M;.;.
PrimateAI
Uncertain
0.58
T
PROVEAN
Uncertain
-3.7
D;.;.;D
REVEL
Pathogenic
0.82
Sift
Pathogenic
0.0
D;.;.;D
Sift4G
Pathogenic
0.0
D;D;D;D
Polyphen
1.0
.;D;.;.
Vest4
0.80
MutPred
0.74
.;Gain of glycosylation at A260 (P = 0.0729);.;.;
MVP
0.96
MPC
0.77
ClinPred
0.53
D
GERP RS
5.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.15
gMVP
0.90

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: rs557266207; hg19: chr8-144687917; COSMIC: COSV55306829; COSMIC: COSV55306829; API