7-150720518-C-G

Variant names:

• chr7-150720518-C-G
• rs1417844598
• NM_130759.4:c.514C>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_130759.4(GIMAP1):​c.514C>G​(p.Arg172Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000276 in 1,448,932 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R172Q) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000028 (0 hom.)
• Consequence: GIMAP1 NM_130759.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.176
• Publications: 1 publications found

Genes affected

GIMAP1 (HGNC:23237): (GTPase, IMAP family member 1) 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 is thought to be involved in the differentiation of T helper (Th) cells of the Th1 lineage, and the related mouse gene has been shown to be critical for the development of mature B and T lymphocytes. Read-through transcription exists between this gene and the downstream GIMAP5 (GTPase, IMAP family member 5) gene. [provided by RefSeq, Dec 2010]

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]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.0827831).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_130759.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GIMAP1	NM_130759.4	MANE Select	c.514C>G	p.Arg172Gly	missense	Exon 3 of 3	NP_570115.1	Q8WWP7
	GIMAP1-GIMAP5	NM_001199577.2		c.402+112C>G		intron	N/A	NP_001186506.1	A0A087WTJ2
	GIMAP1-GIMAP5	NM_001303630.2		c.18+1428C>G		intron	N/A	NP_001290559.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GIMAP1	ENST00000307194.6	TSL:1 MANE Select	c.514C>G	p.Arg172Gly	missense	Exon 3 of 3	ENSP00000302833.5	Q8WWP7
	GIMAP1-GIMAP5	ENST00000611999.4	TSL:5	c.402+112C>G		intron	N/A	ENSP00000477920.1	A0A087WTJ2
	GIMAP1	ENST00000867917.1		c.514C>G	p.Arg172Gly	missense	Exon 2 of 2	ENSP00000537976.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.00000420 AC: 1 AN: 237998 AF XY: 0.00000781

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000928

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000276 AC: 4 AN: 1448932 Hom.: 0 Cov.: 31 AF XY: 0.00000417 AC XY: 3 AN XY: 719636

African (AFR) AF: 0.00 AC: 0 AN: 33322

American (AMR) AF: 0.00 AC: 0 AN: 43674

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 24790

East Asian (EAS) AF: 0.00 AC: 0 AN: 39672

South Asian (SAS) AF: 0.00 AC: 0 AN: 83374

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52654

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5672

European-Non Finnish (NFE) AF: 0.00000362 AC: 4 AN: 1105876

Other (OTH) AF: 0.00 AC: 0 AN: 59898

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.41
CADD	Benign	19
DANN	Uncertain	0.99
DEOGEN2	Benign	0.019	T
Eigen	Benign	-0.73
Eigen_PC	Benign	-0.75
FATHMM_MKL	Benign	0.042	N
LIST_S2	Benign	0.054	T
M_CAP	Benign	0.015	T
MetaRNN	Benign	0.083	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.6	L
PhyloP100		0.18
PROVEAN	Uncertain	-4.0	D
REVEL	Benign	0.070
Sift	Benign	0.12	T
Sift4G	Benign	0.21	T
Polyphen		0.17	B
Vest4		0.084
MutPred		0.53		Loss of phosphorylation at T169 (P = 0.119)
MVP		0.22
MPC		1.8
ClinPred		0.74	D
GERP RS		1.7
Varity_R		0.40
gMVP		0.84
Mutation Taster		=87/13	polymorphism

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

Other links and lift over

dbSNP: rs1417844598; hg19: chr7-150417606;