1-111427097-A-C

Variant names:

• chr1-111427097-A-C
• rs1264894
• NM_002557.4:c.26-6T>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_002557.4(OVGP1):​c.26-6T>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as (no stars).

• Frequency: Genomes: not found (cov: 31)
• Consequence: OVGP1 NM_002557.4 splice_region, intron
• Scores: Splicing: ADA: 0.001143
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0360
• Publications: 23 publications found

Genes affected

OVGP1 (HGNC:8524): (oviductal glycoprotein 1) This gene encodes a large, carbohydrate-rich, epithelial glycoprotein with numerous O-glycosylation sites located within threonine, serine, and proline-rich tandem repeats. The gene is similar to members of the mucin and the glycosyl hydrolase 18 gene families. Regulation of expression may be estrogen-dependent. Gene expression and protein secretion occur during late follicular development through early cleavage-stage embryonic development. The protein is secreted from non-ciliated oviductal epithelial cells and associates with ovulated oocytes, blastomeres, and spermatozoan acrosomal regions. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002557.4. 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
	OVGP1	NM_002557.4	MANE Select	c.26-6T>G		splice_region intron	N/A	NP_002548.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	OVGP1	ENST00000369732.4	TSL:1 MANE Select	c.26-6T>G		splice_region intron	N/A	ENSP00000358747.3	Q12889
	OVGP1	ENST00000943842.1		c.26-456T>G		intron	N/A	ENSP00000613901.1
	OVGP1	ENST00000943841.1		c.26-6T>G		splice_region intron	N/A	ENSP00000613900.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 48

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	3.3
DANN	Benign	0.56
PhyloP100		0.036

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.0011
dbscSNV1_RF	Benign	0.050
SpliceAI score (max)		0.25		Details are displayed if max score is > 0.2
DS_AL_spliceai		0.25		Position offset: -6

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

Other links and lift over

dbSNP: rs1264894; hg19: chr1-111969719;