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GeneBe

19-12763685-G-A

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP4

The NM_013312.3(HOOK2):c.1921C>T(p.Arg641Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000613 in 1,614,072 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts 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. R641H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000064 ( 2 hom. )

Consequence

HOOK2
NM_013312.3 missense

Scores

7
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.08
Variant links:
Genes affected
HOOK2 (HGNC:19885): (hook microtubule tethering protein 2) Hook proteins are cytosolic coiled-coil proteins that contain conserved N-terminal domains, which attach to microtubules, and more divergent C-terminal domains, which mediate binding to organelles. The Drosophila Hook protein is a component of the endocytic compartment.[supplied by OMIM, Apr 2004]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.33476663).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HOOK2NM_013312.3 linkuse as main transcriptc.1921C>T p.Arg641Cys missense_variant 21/23 ENST00000397668.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HOOK2ENST00000397668.8 linkuse as main transcriptc.1921C>T p.Arg641Cys missense_variant 21/231 NM_013312.3 A1Q96ED9-1

Frequencies

GnomAD3 genomes
AF:
0.0000328
AC:
5
AN:
152232
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.000828
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000120
AC:
30
AN:
250246
Hom.:
0
AF XY:
0.000140
AC XY:
19
AN XY:
135522
show subpopulations
Gnomad AFR exome
AF:
0.0000631
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000222
Gnomad SAS exome
AF:
0.000621
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000353
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000643
AC:
94
AN:
1461840
Hom.:
2
Cov.:
32
AF XY:
0.0000825
AC XY:
60
AN XY:
727230
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000176
Gnomad4 SAS exome
AF:
0.000614
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000225
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152232
Hom.:
0
Cov.:
32
AF XY:
0.0000672
AC XY:
5
AN XY:
74364
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000192
Gnomad4 SAS
AF:
0.000828
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000340
ExAC
AF:
0.000157
AC:
19
Asia WGS
AF:
0.00520
AC:
18
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

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 GeneticsMar 06, 2023The c.1921C>T (p.R641C) alteration is located in exon 21 (coding exon 21) of the HOOK2 gene. This alteration results from a C to T substitution at nucleotide position 1921, causing the arginine (R) at amino acid position 641 to be replaced by a cysteine (C). 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
0.11
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.46
Cadd
Benign
23
Dann
Uncertain
1.0
DEOGEN2
Benign
0.097
T;.
Eigen
Benign
0.17
Eigen_PC
Benign
0.027
FATHMM_MKL
Benign
0.22
N
LIST_S2
Uncertain
0.91
D;D
M_CAP
Benign
0.018
T
MetaRNN
Benign
0.33
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.1
M;.
MutationTaster
Benign
1.0
N;N
PrimateAI
Uncertain
0.53
T
PROVEAN
Uncertain
-2.9
D;D
REVEL
Benign
0.13
Sift
Uncertain
0.016
D;D
Sift4G
Uncertain
0.0090
D;D
Polyphen
1.0
D;D
Vest4
0.52
MutPred
0.63
Loss of MoRF binding (P = 0.0121);.;
MVP
0.38
MPC
0.86
ClinPred
0.52
D
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.17
gMVP
0.29

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

Publications

LitVar

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

Other links and lift over

dbSNP: rs368995729; hg19: chr19-12874499; API