7-150737687-C-G

Variant names:

• chr7-150737687-C-G
• rs1797535991
• ENST00000611999.4:c.585C>G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001199577.2(GIMAP1-GIMAP5):​c.585C>G​(p.Asp195Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000152 in 1,383,286 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 10/12 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.000015 (0 hom.)
• Consequence: GIMAP1-GIMAP5 NM_001199577.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.213

Genes affected

GIMAP1-GIMAP5 (HGNC:51257): (GIMAP1-GIMAP5 readthrough) This locus represents naturally occurring readthrough transcription between the neighboring GIMAP1 (GTPase, IMAP family member 1) and GIMAP5 (GTPase, IMAP family member 5) genes on chromosome 7. Alternative splicing results in multiple readthrough transcript variants, one of which encodes a fusion protein that shares sequence identity with each individual gene product. [provided by RefSeq, Jan 2015]

GIMAP5 (HGNC:18005): (GTPase, IMAP family member 5) This gene encodes a protein belonging to the GTP-binding superfamily and to the immuno-associated nucleotide (IAN) subfamily of nucleotide-binding proteins. In humans, the IAN subfamily genes are located in a cluster at 7q36.1. This gene encodes an antiapoptotic protein that functions in T-cell survival. Polymorphisms in this gene are associated with systemic lupus erythematosus. Read-through transcription exists between this gene and the neighboring upstream GIMAP1 (GTPase, IMAP family member 1) gene. [provided by RefSeq, Dec 2010]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.05672306).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GIMAP5	NM_018384.5	c.-28C>G		5_prime_UTR_variant	Exon 1 of 3	ENST00000358647.5	NP_060854.2
GIMAP1-GIMAP5	NM_001199577.2	c.585C>G	p.Asp195Glu	missense_variant	Exon 4 of 6		NP_001186506.1
GIMAP1-GIMAP5	NM_001303630.2	c.201C>G	p.Asp67Glu	missense_variant	Exon 3 of 5		NP_001290559.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GIMAP1-GIMAP5	ENST00000611999.4	c.585C>G	p.Asp195Glu	missense_variant	Exon 4 of 6	5		ENSP00000477920.1
GIMAP5	ENST00000358647	c.-28C>G		5_prime_UTR_variant	Exon 1 of 3	1	NM_018384.5	ENSP00000351473.3

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.0000152 AC: 21 AN: 1383286 Hom.: 0 Cov.: 31 AF XY: 0.0000117 AC XY: 8 AN XY: 682554

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000195

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Sep 14, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.585C>G (p.D195E) alteration is located in exon 4 (coding exon 3) of the GIMAP1-GIMAP5 gene. This alteration results from a C to G substitution at nucleotide position 585, causing the aspartic acid (D) at amino acid position 195 to be replaced by a glutamic acid (E). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.42
CADD	Benign	5.2
DANN	Benign	0.62
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.035	N
LIST_S2	Benign	0.19	T
MetaRNN	Benign	0.057	T
MetaSVM	Benign	-1.0	T
PrimateAI	Benign	0.40	T
Sift4G	Benign	0.39	T
Vest4		0.087
MVP		0.030
ClinPred		0.090	T
GERP RS		0.90
gMVP		0.35

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: rs1797535991; hg19: chr7-150434775;