chr2-97657993-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_005735.4(ACTR1B):​c.875G>A​(p.Arg292Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000458 in 1,614,068 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000047 ( 0 hom. )

Consequence

ACTR1B
NM_005735.4 missense

Scores

2
7
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.10
Variant links:
Genes affected
ACTR1B (HGNC:168): (actin related protein 1B) This gene encodes a 42.3 kD subunit of dynactin, a macromolecular complex consisting of 10 subunits ranging in size from 22 to 150 kD. Dynactin binds to both microtubules and cytoplasmic dynein and is involved in a diverse array of cellular functions, including ER-to-Golgi transport, the centripetal movement of lysosomes and endosomes, spindle formation, chromosome movement, nuclear positioning, and axonogenesis. This subunit, like ACTR1A, is an actin-related protein. These two proteins, which are of equal length and share 90% amino acid identity, are present in a constant ratio of approximately 1:15 in the dynactin complex. [provided by RefSeq, Aug 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ACTR1BNM_005735.4 linkuse as main transcriptc.875G>A p.Arg292Gln missense_variant 8/11 ENST00000289228.7 NP_005726.1
ACTR1BXM_017003116.2 linkuse as main transcriptc.743G>A p.Arg248Gln missense_variant 8/11 XP_016858605.1
ACTR1BXM_005263854.6 linkuse as main transcriptc.653G>A p.Arg218Gln missense_variant 7/10 XP_005263911.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ACTR1BENST00000289228.7 linkuse as main transcriptc.875G>A p.Arg292Gln missense_variant 8/111 NM_005735.4 ENSP00000289228 P1
ACTR1BENST00000451664.1 linkuse as main transcriptn.1136G>A non_coding_transcript_exon_variant 7/75

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152216
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000597
AC:
15
AN:
251388
Hom.:
0
AF XY:
0.0000442
AC XY:
6
AN XY:
135884
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000792
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000465
AC:
68
AN:
1461852
Hom.:
0
Cov.:
31
AF XY:
0.0000358
AC XY:
26
AN XY:
727234
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.000179
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000468
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152216
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74370
show subpopulations
Gnomad4 AFR
AF:
0.0000482
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:
0.0000441
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000189
ExAC
AF:
0.0000330
AC:
4

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 GeneticsMay 09, 2024The c.875G>A (p.R292Q) alteration is located in exon 8 (coding exon 8) of the ACTR1B gene. This alteration results from a G to A substitution at nucleotide position 875, causing the arginine (R) at amino acid position 292 to be replaced by a glutamine (Q). 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
0.24
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.38
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.58
D
Eigen
Uncertain
0.20
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Pathogenic
0.98
D
M_CAP
Benign
0.010
T
MetaRNN
Uncertain
0.55
D
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.9
L
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.72
T
PROVEAN
Benign
-1.9
N
REVEL
Benign
0.15
Sift
Benign
0.039
D
Sift4G
Uncertain
0.046
D
Polyphen
0.15
B
Vest4
0.66
MutPred
0.52
Gain of sheet (P = 0.0827);
MVP
0.68
MPC
0.57
ClinPred
0.13
T
GERP RS
4.5
Varity_R
0.23
gMVP
0.79

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: rs755544675; hg19: chr2-98274456; COSMIC: COSV56703979; COSMIC: COSV56703979; API