9-132956506-C-T

Position:

• chr9-132956506-C-T

Variant summary

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

The NM_004188.8(GFI1B):​c.-701+10837C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.672 in 152,046 control chromosomes in the GnomAD database, including 34,338 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 0.67 (34338 hom., cov: 32)
• Consequence: GFI1B NM_004188.8 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0270

Genes affected

GFI1B (HGNC:4238): (growth factor independent 1B transcriptional repressor) This gene encodes a zinc-finger containing transcriptional regulator that is primarily expressed in cells of hematopoietic lineage. The encoded protein complexes with numerous other transcriptional regulatory proteins including GATA-1, runt-related transcription factor 1 and histone deacetylases to control expression of genes involved in the development and maturation of erythrocytes and megakaryocytes. Mutations in this gene are the cause of the autosomal dominant platelet disorder, platelet-type bleeding disorder-17. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Aug 2014]

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 (SAS) allele frequency at 95% confidence interval = 0.747 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GFI1B	NM_004188.8	c.-701+10837C>T		intron_variant			NP_004179.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GFI1B	ENST00000339463.7	c.-701+10837C>T		intron_variant		1		ENSP00000344782.3

Frequencies

GnomAD3 genomes AF: 0.671 AC: 102007 AN: 151926 Hom.: 34297 Cov.: 32

Gnomad AFR AF: 0.640

Gnomad AMI AF: 0.638

Gnomad AMR AF: 0.651

Gnomad ASJ AF: 0.714

Gnomad EAS AF: 0.665

Gnomad SAS AF: 0.767

Gnomad FIN AF: 0.634

Gnomad MID AF: 0.623

Gnomad NFE AF: 0.693

Gnomad OTH AF: 0.649

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

GnomAD4 genome AF: 0.672 AC: 102109 AN: 152046 Hom.: 34338 Cov.: 32 AF XY: 0.671 AC XY: 49903 AN XY: 74318

Gnomad4 AFR AF: 0.641

Gnomad4 AMR AF: 0.651

Gnomad4 ASJ AF: 0.714

Gnomad4 EAS AF: 0.665

Gnomad4 SAS AF: 0.768

Gnomad4 FIN AF: 0.634

Gnomad4 NFE AF: 0.694

Gnomad4 OTH AF: 0.654

Alfa AF: 0.683 Hom.: 50037

Bravo AF: 0.667

Asia WGS AF: 0.732 AC: 2545 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.98
CADD	Benign	1.1
DANN	Benign	0.55

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: rs3011289; hg19: chr9-135831893;