22-18936267-C-G

Variant names:

• chr22-18936267-C-G
• rs539772713
• NM_016335.6:c.21G>C

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_Strong BP6_Moderate BP7

The NM_016335.6(PRODH):​c.21G>C​(p.Leu7Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. L7L) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 0)
• Consequence: PRODH NM_016335.6 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -4.57
• Publications: 0 publications found

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: Labcorp Genetics (formerly Invitae), ClinGen, Laboratory for Molecular Medicine, Orphanet

ENSG00000283809 (HGNC:):

ACMG classification

Our verdict: Benign. The variant received -7 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).
• BP6: Variant 22-18936267-C-G is Benign according to our data. Variant chr22-18936267-C-G is described in ClinVar as Likely_benign. ClinVar VariationId is 2066014.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=-4.57 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016335.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRODH	NM_016335.6	MANE Select	c.21G>C	p.Leu7Leu	synonymous	Exon 1 of 14	NP_057419.5
	PRODH	NM_001368250.2		c.-149G>C		5_prime_UTR	Exon 1 of 14	NP_001355179.2	E7EQL6
	PRODH	NM_001195226.2		c.-52+123G>C		intron	N/A	NP_001182155.2	O43272-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRODH	ENST00000357068.11	TSL:1 MANE Select	c.21G>C	p.Leu7Leu	synonymous	Exon 1 of 14	ENSP00000349577.6	O43272-4
	PRODH	ENST00000610940.4	TSL:1	c.21G>C	p.Leu7Leu	synonymous	Exon 2 of 15	ENSP00000480347.1	O43272-4
	PRODH	ENST00000334029.6	TSL:1	c.-52+123G>C		intron	N/A	ENSP00000334726.2	O43272-2

Frequencies

GnomAD3 genomes Cov.: 0

GnomAD2 exomes AF: 0.00 AC: 0 AN: 1986 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 0

GnomAD4 genome Cov.: 0

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	Proline dehydrogenase deficiency (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	1.3
DANN	Benign	0.41
PhyloP100		-4.6
PromoterAI		-0.051	Neutral

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

Other links and lift over

dbSNP: rs539772713; hg19: chr22-18923780;