2-97658459-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_005735.4(ACTR1B):ā€‹c.625G>Cā€‹(p.Ala209Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,868 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0000027 ( 0 hom. )

Consequence

ACTR1B
NM_005735.4 missense

Scores

9
9
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.17
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 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.88

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ACTR1BNM_005735.4 linkuse as main transcriptc.625G>C p.Ala209Pro missense_variant 6/11 ENST00000289228.7 NP_005726.1
ACTR1BXM_017003116.2 linkuse as main transcriptc.493G>C p.Ala165Pro missense_variant 6/11 XP_016858605.1
ACTR1BXM_005263854.6 linkuse as main transcriptc.403G>C p.Ala135Pro missense_variant 5/10 XP_005263911.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ACTR1BENST00000289228.7 linkuse as main transcriptc.625G>C p.Ala209Pro missense_variant 6/111 NM_005735.4 ENSP00000289228 P1
ACTR1BENST00000451664.1 linkuse as main transcriptn.886G>C non_coding_transcript_exon_variant 5/75

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251312
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135838
show subpopulations
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461868
Hom.:
0
Cov.:
35
AF XY:
0.00000550
AC XY:
4
AN XY:
727232
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00000360
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 11, 2024The c.625G>C (p.A209P) alteration is located in exon 6 (coding exon 6) of the ACTR1B gene. This alteration results from a G to C substitution at nucleotide position 625, causing the alanine (A) at amino acid position 209 to be replaced by a proline (P). 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
Pathogenic
0.92
BayesDel_addAF
Pathogenic
0.45
D
BayesDel_noAF
Pathogenic
0.48
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.71
D
Eigen
Uncertain
0.65
Eigen_PC
Uncertain
0.63
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.94
D
M_CAP
Uncertain
0.19
D
MetaRNN
Pathogenic
0.88
D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
3.9
H
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.71
T
PROVEAN
Uncertain
-4.3
D
REVEL
Pathogenic
0.85
Sift
Uncertain
0.0010
D
Sift4G
Pathogenic
0.0010
D
Polyphen
0.44
B
Vest4
0.73
MutPred
0.73
Loss of helix (P = 0.1299);
MVP
0.97
MPC
1.2
ClinPred
1.0
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.96
gMVP
0.76

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: rs780715402; hg19: chr2-98274922; API