7-150572227-C-T

Variant names:

• chr7-150572227-C-T
• rs371407079
• NM_018326.3:c.157C>T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_018326.3(GIMAP4):​c.157C>T​(p.Arg53Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000118 in 1,613,772 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R53Q) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000011 (0 hom.)
• Consequence: GIMAP4 NM_018326.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -2.82
• Publications: 0 publications found

Genes affected

GIMAP4 (HGNC:21872): (GTPase, IMAP family member 4) This gene encodes a protein belonging to the GTP-binding superfamily and to the immuno-associated nucleotide (IAN) subfamily of nucleotide-binding proteins. The encoded protein of this gene may be negatively regulated by T-cell acute lymphocytic leukemia 1 (TAL1). In humans, the IAN subfamily genes are located in a cluster at 7q36.1. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.28821585).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GIMAP4	NM_018326.3	c.157C>T	p.Arg53Trp	missense_variant	Exon 3 of 3	ENST00000255945.4	NP_060796.1
GIMAP4	NM_001363532.2	c.199C>T	p.Arg67Trp	missense_variant	Exon 3 of 3		NP_001350461.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GIMAP4	ENST00000255945.4	c.157C>T	p.Arg53Trp	missense_variant	Exon 3 of 3	1	NM_018326.3	ENSP00000255945.2

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152116 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000193

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000119 AC: 3 AN: 251150 AF XY: 0.0000221

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000176

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000109 AC: 16 AN: 1461538 Hom.: 0 Cov.: 33 AF XY: 0.00000963 AC XY: 7 AN XY: 727110

African (AFR) AF: 0.00 AC: 0 AN: 33468

American (AMR) AF: 0.0000224 AC: 1 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.0000504 AC: 2 AN: 39686

South Asian (SAS) AF: 0.00 AC: 0 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.0000117 AC: 13 AN: 1111708

Other (OTH) AF: 0.00 AC: 0 AN: 60376

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152234 Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2 AN XY: 74410

African (AFR) AF: 0.00 AC: 0 AN: 41544

American (AMR) AF: 0.00 AC: 0 AN: 15300

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.000193 AC: 1 AN: 5168

South Asian (SAS) AF: 0.00 AC: 0 AN: 4824

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10580

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 68030

Other (OTH) AF: 0.00 AC: 0 AN: 2114

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000264

TwinsUK AF: 0.00 AC: 0

ALSPAC AF: 0.000259 AC: 1

ExAC AF: 0.0000165 AC: 2

Asia WGS AF: 0.000289 AC: 1 AN: 3476

EpiCase AF: 0.0000545

EpiControl AF: 0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Apr 20, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.157C>T (p.R53W) alteration is located in exon 3 (coding exon 2) of the GIMAP4 gene. This alteration results from a C to T substitution at nucleotide position 157, causing the arginine (R) at amino acid position 53 to be replaced by a tryptophan (W). 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
AlphaMissense	Benign	0.22
BayesDel_addAF	Benign	-0.31	T
BayesDel_noAF	Benign	-0.60
CADD	Benign	16
DANN	Benign	0.90
DEOGEN2	Benign	0.28	T;.;.
Eigen	Benign	-0.90
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.023	N
LIST_S2	Benign	0.71	T;T;D
M_CAP	Benign	0.0045	T
MetaRNN	Benign	0.29	T;T;T
MetaSVM	Benign	-0.99	T
MutationAssessor	Uncertain	2.4	M;.;.
PhyloP100		-2.8
PrimateAI	Benign	0.30	T
PROVEAN	Uncertain	-4.1	D;D;D
REVEL	Benign	0.081
Sift	Uncertain	0.0090	D;D;D
Sift4G	Uncertain	0.0060	D;D;D
Polyphen		0.98	D;D;.
Vest4		0.12
MutPred		0.62		.;Loss of disorder (P = 0.0022);Loss of disorder (P = 0.0022);
MVP		0.32
MPC		0.29
ClinPred		0.94	D
GERP RS		-5.1
Varity_R		0.20
gMVP		0.33
Mutation Taster		=91/9	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: rs371407079; hg19: chr7-150269315;