NM_130759.4:c.578C>T

Variant names:

• chr7-150720582-C-T
• rs753846343
• NM_130759.4:c.578C>T

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.578C>T​(p.Thr193Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,461,438 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 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. T193S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000041 (0 hom.)
• Consequence: GIMAP1 NM_130759.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.813
• Publications: 0 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=0.14673683).

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.578C>T	p.Thr193Ile	missense	Exon 3 of 3	NP_570115.1	Q8WWP7
	GIMAP1-GIMAP5	NM_001199577.2		c.402+176C>T		intron	N/A	NP_001186506.1	A0A087WTJ2
	GIMAP1-GIMAP5	NM_001303630.2		c.18+1492C>T		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.578C>T	p.Thr193Ile	missense	Exon 3 of 3	ENSP00000302833.5	Q8WWP7
	GIMAP1-GIMAP5	ENST00000611999.4	TSL:5	c.402+176C>T		intron	N/A	ENSP00000477920.1	A0A087WTJ2
	GIMAP1	ENST00000867917.1		c.578C>T	p.Thr193Ile	missense	Exon 2 of 2	ENSP00000537976.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.00000402 AC: 1 AN: 248496 AF XY: 0.00

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: 0.00000892

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000411 AC: 6 AN: 1461438 Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4 AN XY: 727032

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44690

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26108

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.00 AC: 0 AN: 86226

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53316

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

European-Non Finnish (NFE) AF: 0.00000540 AC: 6 AN: 1111806

Other (OTH) AF: 0.00 AC: 0 AN: 60354

GnomAD4 genome Cov.: 33

TwinsUK AF: 0.000270 AC: 1

ALSPAC AF: 0.000259 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.23
BayesDel_addAF	Benign	-0.32	T
BayesDel_noAF	Benign	-0.69
CADD	Benign	9.8
DANN	Uncertain	1.0
DEOGEN2	Benign	0.019	T
Eigen	Benign	-0.46
Eigen_PC	Benign	-0.72
FATHMM_MKL	Benign	0.053	N
LIST_S2	Benign	0.43	T
M_CAP	Benign	0.0040	T
MetaRNN	Benign	0.15	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.4	M
PhyloP100		-0.81
PROVEAN	Uncertain	-4.2	D
REVEL	Benign	0.022
Sift	Uncertain	0.019	D
Sift4G	Uncertain	0.041	D
Polyphen		0.95	P
Vest4		0.039
MutPred		0.44		Loss of disorder (P = 0.0375)
MVP		0.12
MPC		1.6
ClinPred		0.86	D
GERP RS		-0.37
Varity_R		0.22
gMVP		0.82
Mutation Taster		=100/0	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: rs753846343; hg19: chr7-150417670;