4-144016195-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_002100.6(GYPB):c.37+3056G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0758 in 131,096 control chromosomes in the GnomAD database, including 1,168 homozygotes. 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 0.076 (1168 hom., cov: 27)
• Consequence: GYPB NM_002100.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.312

Genes affected

GYPB (HGNC:4703): (glycophorin B (MNS blood group)) Glycophorins A (GYPA) and B (GYPB) are major sialoglycoproteins of the human erythrocyte membrane which bear the antigenic determinants for the MN and Ss blood groups. GYPB gene consists of 5 exons and has 97% sequence homology with GYPA from the 5' UTR to the coding sequence encoding the first 45 amino acids. In addition to the M or N and S or s antigens, that commonly occur in all populations, about 40 related variant phenotypes have been identified. These variants include all the variants of the Miltenberger complex and several isoforms of Sta; also, Dantu, Sat, He, Mg, and deletion variants Ena, S-s-U- and Mk. Most of the variants are the result of gene recombinations between GYPA and GYPB. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jan 2015]

GUSBP5 (HGNC:):

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.98).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.218 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GYPB	NM_002100.6	c.37+3056G>A		intron_variant		ENST00000502664.6
GYPB	NM_001304382.1	c.-42+607G>A		intron_variant
GYPB	XM_011531903.3	c.37+3056G>A		intron_variant
GYPB	XM_011531904.4	c.-115+3056G>A		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GYPB	ENST00000502664.6	c.37+3056G>A		intron_variant		1	NM_002100.6	A2

Frequencies

GnomAD3 genomes AF: 0.0757 AC: 9915 AN: 131026 Hom.: 1166 Cov.: 27

Gnomad AFR AF: 0.223

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0653

Gnomad ASJ AF: 0.0445

Gnomad EAS AF: 0.170

Gnomad SAS AF: 0.0172

Gnomad FIN AF: 0.0112

Gnomad MID AF: 0.0367

Gnomad NFE AF: 0.00428

Gnomad OTH AF: 0.0737

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

GnomAD4 genome AF: 0.0758 AC: 9933 AN: 131096 Hom.: 1168 Cov.: 27 AF XY: 0.0775 AC XY: 4834 AN XY: 62386

Gnomad4 AFR AF: 0.223

Gnomad4 AMR AF: 0.0653

Gnomad4 ASJ AF: 0.0445

Gnomad4 EAS AF: 0.170

Gnomad4 SAS AF: 0.0169

Gnomad4 FIN AF: 0.0112

Gnomad4 NFE AF: 0.00428

Gnomad4 OTH AF: 0.0738

Alfa AF: 0.0442 Hom.: 90

Asia WGS AF: 0.0880 AC: 307 AN: 3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.98
Cadd	Benign	0.53
Dann	Benign	0.52

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: rs4835511; hg19: chr4-144937348;