12-66348280-A-ATGTT

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BS1_Supporting BS2

The NM_001366722.1(GRIP1):c.*738_*739insAACA variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00532 in 152,166 control chromosomes in the GnomAD database, including 12 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.0053 (12 hom., cov: 32)
  • Failed GnomAD Quality Control
• Consequence: GRIP1 NM_001366722.1 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.105

Genes affected

GRIP1 (HGNC:18708): (glutamate receptor interacting protein 1) This gene encodes a member of the glutamate receptor interacting protein family. The encoded scaffold protein binds to and mediates the trafficking and membrane organization of a number of transmembrane proteins. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, May 2010]

ACMG classification

Verdict is Likely_benign. Variant got -5 ACMG points.

• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00532 (809/152166) while in subpopulation AFR AF= 0.0187 (776/41506). AF 95% confidence interval is 0.0176. There are 12 homozygotes in gnomad4. There are 383 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
• BS2: High Homozygotes in GnomAd at 12 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GRIP1	NM_001366722.1	c.*738_*739insAACA		3_prime_UTR_variant	25/25	ENST00000359742.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GRIP1	ENST00000359742.9	c.*738_*739insAACA		3_prime_UTR_variant	25/25	5	NM_001366722.1	P1
GRIP1	ENST00000398016.7	c.*738_*739insAACA		3_prime_UTR_variant	24/24	1
GRIP1	ENST00000696989.1	c.*738_*739insAACA		3_prime_UTR_variant	23/23

Frequencies

GnomAD3 genomes AF: 0.00531 AC: 808 AN: 152046 Hom.: 12 Cov.: 32

Gnomad AFR AF: 0.0187

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00124

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: 0.0000441

Gnomad OTH AF: 0.00527

GnomAD4 exome Data not reliable, filtered out with message: AC0 AC: 0 AN: 0 Hom.: 0 Cov.: 0 AC XY: 0 AN XY: 0

GnomAD4 genome AF: 0.00532 AC: 809 AN: 152166 Hom.: 12 Cov.: 32 AF XY: 0.00515 AC XY: 383 AN XY: 74390

Gnomad4 AFR AF: 0.0187

Gnomad4 AMR AF: 0.00124

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000441

Gnomad4 OTH AF: 0.00521

Alfa AF: 0.00523 Hom.: 0

Asia WGS AF: 0.00115 AC: 4 AN: 3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Fraser syndrome 1 Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

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Computational scores

Source: dbNSFP v4.3

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs551666983; hg19: chr12-66742060;