13-113324534-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_024719.4(GRTP1):​c.965C>T​(p.Ala322Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000118 in 1,611,876 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

GRTP1
NM_024719.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.655
Variant links:
Genes affected
GRTP1 (HGNC:20310): (growth hormone regulated TBC protein 1) Predicted to enable GTPase activator activity. Predicted to be involved in activation of GTPase activity and intracellular protein transport. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

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=0.06373018).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GRTP1NM_024719.4 linkuse as main transcriptc.965C>T p.Ala322Val missense_variant 8/8 ENST00000375431.9
GRTP1NM_001286733.1 linkuse as main transcriptc.606C>T p.Arg202= synonymous_variant 6/6
GRTP1NM_001411029.1 linkuse as main transcriptc.*1013C>T 3_prime_UTR_variant 7/7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GRTP1ENST00000375431.9 linkuse as main transcriptc.965C>T p.Ala322Val missense_variant 8/81 NM_024719.4 P1Q5TC63-1
GRTP1ENST00000620217.4 linkuse as main transcriptc.606C>T p.Arg202= synonymous_variant 6/62

Frequencies

GnomAD3 genomes
AF:
0.0000723
AC:
11
AN:
152242
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000723
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.000103
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000823
AC:
20
AN:
242994
Hom.:
0
AF XY:
0.0000454
AC XY:
6
AN XY:
132162
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000147
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000127
Gnomad OTH exome
AF:
0.000170
GnomAD4 exome
AF:
0.000123
AC:
179
AN:
1459634
Hom.:
0
Cov.:
31
AF XY:
0.000103
AC XY:
75
AN XY:
725928
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000157
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:
0.000148
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.0000723
AC:
11
AN:
152242
Hom.:
0
Cov.:
32
AF XY:
0.0000807
AC XY:
6
AN XY:
74384
show subpopulations
Gnomad4 AFR
AF:
0.0000723
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000154
Hom.:
0
Bravo
AF:
0.0000982
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000121
AC:
1
ExAC
AF:
0.0000745
AC:
9

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 26, 2023The c.965C>T (p.A322V) alteration is located in exon 8 (coding exon 8) of the GRTP1 gene. This alteration results from a C to T substitution at nucleotide position 965, causing the alanine (A) at amino acid position 322 to be replaced by a valine (V). 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
0.093
BayesDel_addAF
Benign
-0.54
T
BayesDel_noAF
Benign
-0.76
CADD
Benign
8.7
DANN
Benign
0.89
DEOGEN2
Benign
0.0023
T
Eigen
Benign
-0.74
Eigen_PC
Benign
-0.64
FATHMM_MKL
Benign
0.52
D
LIST_S2
Uncertain
0.89
D
M_CAP
Benign
0.0074
T
MetaRNN
Benign
0.064
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.90
L
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-0.76
N
REVEL
Benign
0.066
Sift
Benign
0.27
T
Sift4G
Benign
0.28
T
Polyphen
0.078
B
Vest4
0.065
MVP
0.18
MPC
0.12
ClinPred
0.038
T
GERP RS
4.5
Varity_R
0.056

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs375373610; hg19: chr13-113978849; API