2-126695725-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The NM_002101.5(GYPC):c.191-221C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.592 in 152,126 control chromosomes in the GnomAD database, including 27,131 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency: Genomes: 𝑓 0.59 (27131 hom., cov: 33)
• Consequence: GYPC NM_002101.5 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -1.06

Genes affected

GYPC (HGNC:4704): (glycophorin C (Gerbich blood group)) Glycophorin C (GYPC) is an integral membrane glycoprotein. It is a minor species carried by human erythrocytes, but plays an important role in regulating the mechanical stability of red cells. A number of glycophorin C mutations have been described. The Gerbich and Yus phenotypes are due to deletion of exon 3 and 2, respectively. The Webb and Duch antigens, also known as glycophorin D, result from single point mutations of the glycophorin C gene. The glycophorin C protein has very little homology with glycophorins A and B. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Feb 2012]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.94).
• BP6: Variant 2-126695725-C-T is Benign according to our data. Variant chr2-126695725-C-T is described in ClinVar as [Benign]. Clinvar id is 1294938.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.69 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GYPC	NM_002101.5	c.191-221C>T		intron_variant		ENST00000259254.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GYPC	ENST00000259254.9	c.191-221C>T		intron_variant		1	NM_002101.5	P2
GYPC	ENST00000356887.12	c.128-221C>T		intron_variant		1		A2
GYPC	ENST00000409836.3	c.134-221C>T		intron_variant		1		A2

Frequencies

GnomAD3 genomes AF: 0.592 AC: 90008 AN: 152008 Hom.: 27095 Cov.: 33

Gnomad AFR AF: 0.697

Gnomad AMI AF: 0.529

Gnomad AMR AF: 0.544

Gnomad ASJ AF: 0.536

Gnomad EAS AF: 0.652

Gnomad SAS AF: 0.450

Gnomad FIN AF: 0.559

Gnomad MID AF: 0.535

Gnomad NFE AF: 0.554

Gnomad OTH AF: 0.604

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.592 AC: 90097 AN: 152126 Hom.: 27131 Cov.: 33 AF XY: 0.591 AC XY: 43915 AN XY: 74344

Gnomad4 AFR AF: 0.697

Gnomad4 AMR AF: 0.543

Gnomad4 ASJ AF: 0.536

Gnomad4 EAS AF: 0.652

Gnomad4 SAS AF: 0.451

Gnomad4 FIN AF: 0.559

Gnomad4 NFE AF: 0.554

Gnomad4 OTH AF: 0.602

Alfa AF: 0.582 Hom.: 3597

Bravo AF: 0.602

Asia WGS AF: 0.532 AC: 1847 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Nov 12, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
Cadd	Benign	0.50
Dann	Benign	0.39

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: rs1968539; hg19: chr2-127453301;