chr17-29576369-C-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_014030.4(GIT1):​c.1462G>A​(p.Ala488Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000229 in 1,613,506 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 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. A488V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

GIT1
NM_014030.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.14
Variant links:
Genes affected
GIT1 (HGNC:4272): (GIT ArfGAP 1) Enables gamma-tubulin binding activity. Involved in positive regulation of microtubule nucleation and regulation of cytokinesis. Located in several cellular components, including focal adhesion; microtubule cytoskeleton; and mitochondrion. Implicated in attention deficit hyperactivity disorder. Biomarker of Huntington's disease. [provided by Alliance of Genome Resources, Apr 2022]
ABHD15-AS1 (HGNC:49685): (ABHD15 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.026537538).
BS2
High AC in GnomAd4 at 18 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GIT1NM_014030.4 linkuse as main transcriptc.1462G>A p.Ala488Thr missense_variant 14/20 ENST00000225394.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GIT1ENST00000225394.8 linkuse as main transcriptc.1462G>A p.Ala488Thr missense_variant 14/201 NM_014030.4 A1Q9Y2X7-1
ABHD15-AS1ENST00000581474.1 linkuse as main transcriptn.153+15670C>T intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.000112
AC:
17
AN:
152218
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000362
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000279
AC:
7
AN:
250850
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135736
show subpopulations
Gnomad AFR exome
AF:
0.000432
Gnomad AMR exome
AF:
0.00
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000130
AC:
19
AN:
1461170
Hom.:
0
Cov.:
34
AF XY:
0.0000110
AC XY:
8
AN XY:
726912
show subpopulations
Gnomad4 AFR exome
AF:
0.000388
Gnomad4 AMR exome
AF:
0.0000447
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.000118
AC:
18
AN:
152336
Hom.:
0
Cov.:
33
AF XY:
0.0000940
AC XY:
7
AN XY:
74486
show subpopulations
Gnomad4 AFR
AF:
0.000385
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000645
Hom.:
0
Bravo
AF:
0.000125
ExAC
AF:
0.0000412
AC:
5

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 02, 2022The c.1489G>A (p.A497T) alteration is located in exon 15 (coding exon 15) of the GIT1 gene. This alteration results from a G to A substitution at nucleotide position 1489, causing the alanine (A) at amino acid position 497 to be replaced by a threonine (T). 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
0.063
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
23
DANN
Benign
0.95
DEOGEN2
Benign
0.092
T;.;.;.
Eigen
Benign
-0.75
Eigen_PC
Benign
-0.58
FATHMM_MKL
Benign
0.36
N
LIST_S2
Benign
0.82
T;T;T;T
M_CAP
Benign
0.020
T
MetaRNN
Benign
0.027
T;T;T;T
MetaSVM
Benign
-0.92
T
MutationAssessor
Benign
1.4
L;.;.;.
MutationTaster
Benign
0.70
D;D;D;D
PrimateAI
Uncertain
0.50
T
PROVEAN
Benign
0.14
N;N;.;.
REVEL
Benign
0.12
Sift
Benign
0.37
T;T;.;.
Sift4G
Benign
0.63
T;T;T;T
Polyphen
0.010
B;B;.;.
Vest4
0.33
MVP
0.37
MPC
0.19
ClinPred
0.031
T
GERP RS
4.4
Varity_R
0.032
gMVP
0.18

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs563309641; hg19: chr17-27903387; API