chr3-15175196-A-G

Position:

• chr3-15175196-A-G

Variant summary

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

The NR_027927.1(COL6A4P1):​n.1008T>C variant causes a non coding transcript exon change. The variant allele was found at a frequency of 0.0000132 in 152,044 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.000013 (0 hom., cov: 32)
• Consequence: COL6A4P1 NR_027927.1 non_coding_transcript_exon
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.81

Genes affected

COL6A4P1 (HGNC:33484): (collagen type VI alpha 4 pseudogene 1) This transcribed pseudogene represents the 5' end of a presumed ortholog to a mouse gene which encodes a collagen VI alpha 4 chain protein (GeneID 68553). No complete ORF of comparable size to the mouse protein is found in this gene. The predicted protein lacks a signal peptide; however, this truncated collagen polypeptide may have achieved a different function as suggested by PubMed ID: 18622395. Evidence of in vivo translation is incomplete. A large chromosome break separates this pseudogene from the 3' end of the presumed ortholog (COL6A4P2, GeneID 646300) which is located downstream at chromosome 3q21.3. [provided by RefSeq, Jun 2009]

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 (BayesDel_noAF=-0.47).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
COL6A4P1	NR_027927.1	n.1008T>C		non_coding_transcript_exon_variant	3/5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
COL6A4P1	ENST00000446690.2	n.1008T>C		non_coding_transcript_exon_variant	3/5	2
COL6A4P1	ENST00000487147.5	n.832T>C		non_coding_transcript_exon_variant	3/13

Frequencies

GnomAD3 genomes AF: 0.0000132 AC: 2 AN: 152044 Hom.: 0 Cov.: 32

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

GnomAD4 exome Cov.: 0

GnomAD4 genome AF: 0.0000132 AC: 2 AN: 152044 Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2 AN XY: 74240

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

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.47
CADD	Benign	14
DANN	Benign	0.67

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs11718863; hg19: chr3-15216703;