rs193920891

Variant names:

• chr22-20314730-G-A
• rs193920891
• NM_033257.4:c.608C>T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_033257.4(DGCR6L):​c.608C>T​(p.Pro203Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,459,480 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: DGCR6L NM_033257.4 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 0.0320

Genes affected

DGCR6L (HGNC:18551): (DiGeorge syndrome critical region gene 6 like) This gene, the result of a duplication at this locus, is one of two functional genes encoding nearly identical proteins that have similar expression patterns. The product of this gene is a protein that shares homology with the Drosophila gonadal protein, expressed in gonadal tissues and germ cells, and with the human laminin gamma-1 chain that functions in cell attachment and migration. This gene is located in a region of chromosome 22 implicated in the DiGeorge syndrome, one facet of a broader collection of anomalies referred to as the CATCH 22 syndrome. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.053005666).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DGCR6L	NM_033257.4	c.608C>T	p.Pro203Leu	missense_variant	Exon 5 of 5	ENST00000248879.8	NP_150282.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DGCR6L	ENST00000248879.8	c.608C>T	p.Pro203Leu	missense_variant	Exon 5 of 5	1	NM_033257.4	ENSP00000248879.2
DGCR6L	ENST00000443409.1	n.*213C>T		non_coding_transcript_exon_variant	Exon 4 of 4	1		ENSP00000403341.1
DGCR6L	ENST00000443409.1	n.*213C>T		3_prime_UTR_variant	Exon 4 of 4	1		ENSP00000403341.1
DGCR6L	ENST00000405465.3	c.494C>T	p.Pro165Leu	missense_variant	Exon 4 of 4	3		ENSP00000386052.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1459480 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 725972

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: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

Malignant tumor of prostate Uncertain:1

-

Science for Life laboratory, Karolinska Institutet

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: literature only

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.076
BayesDel_addAF	Benign	-0.27	T
BayesDel_noAF	Benign	-0.62
CADD	Benign	10
DANN	Benign	0.62
DEOGEN2	Benign	0.0048	T;T
Eigen	Benign	-1.4
Eigen_PC	Benign	-1.4
FATHMM_MKL	Benign	0.035	N
LIST_S2	Benign	0.68	T;T
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.053	T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.0	N;.
PROVEAN	Benign	-0.88	N;N
REVEL	Benign	0.013
Sift	Benign	0.13	T;T
Sift4G	Benign	0.13	T;T
Polyphen		0.0	B;.
Vest4		0.078
MutPred		0.22		Gain of helix (P = 0.0325);.;
MVP		0.28
MPC		0.21
ClinPred		0.037	T
GERP RS		-0.20
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.022
gMVP		0.25

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

LitVar

Other links and lift over

dbSNP: rs193920891; hg19: chr22-20302253; COSMIC: COSV105066459; COSMIC: COSV105066459;