chr17-35148407-C-T

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BA1

The NM_001267052.2(UNC45B):​c.144C>T​(p.Asn48=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.003 in 1,613,946 control chromosomes in the GnomAD database, including 131 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.017 ( 78 hom., cov: 32)
Exomes 𝑓: 0.0016 ( 53 hom. )

Consequence

UNC45B
NM_001267052.2 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 2.69
Variant links:
Genes affected
UNC45B (HGNC:14304): (unc-45 myosin chaperone B) This gene encodes a co-chaperone required for folding and accumulation of type II myosins. The protein consists of three tetratricopeptide repeat motifs at the N-terminus that form a complex with heat shock protein 90, a central region of unknown function that is conserved in all Unc-45 proteins, and a C-terminal Unc-45/Cro1/She4 domain. The protein is expressed at high levels in striated muscle, where its muscle myosin chaperone activity is dependent on heat shock protein 90 acting as a co-chaperone. A missense mutation in this gene has been associated with cataract development. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2015]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.45).
BP6
Variant 17-35148407-C-T is Benign according to our data. Variant chr17-35148407-C-T is described in ClinVar as [Benign]. Clinvar id is 783779.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=2.69 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0567 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
UNC45BNM_001267052.2 linkuse as main transcriptc.144C>T p.Asn48= synonymous_variant 2/20 ENST00000394570.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
UNC45BENST00000394570.7 linkuse as main transcriptc.144C>T p.Asn48= synonymous_variant 2/201 NM_001267052.2 P4Q8IWX7-3
UNC45BENST00000591048.2 linkuse as main transcriptc.144C>T p.Asn48= synonymous_variant 1/171 Q8IWX7-2
UNC45BENST00000268876.9 linkuse as main transcriptc.144C>T p.Asn48= synonymous_variant 2/205 A1Q8IWX7-1

Frequencies

GnomAD3 genomes
AF:
0.0168
AC:
2564
AN:
152196
Hom.:
78
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0589
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00536
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000235
Gnomad OTH
AF:
0.0115
GnomAD3 exomes
AF:
0.00437
AC:
1093
AN:
250332
Hom.:
31
AF XY:
0.00335
AC XY:
454
AN XY:
135418
show subpopulations
Gnomad AFR exome
AF:
0.0606
Gnomad AMR exome
AF:
0.00264
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000980
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000115
Gnomad OTH exome
AF:
0.000983
GnomAD4 exome
AF:
0.00156
AC:
2280
AN:
1461632
Hom.:
53
Cov.:
31
AF XY:
0.00134
AC XY:
977
AN XY:
727120
show subpopulations
Gnomad4 AFR exome
AF:
0.0544
Gnomad4 AMR exome
AF:
0.00344
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000139
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000647
Gnomad4 OTH exome
AF:
0.00351
GnomAD4 genome
AF:
0.0168
AC:
2561
AN:
152314
Hom.:
78
Cov.:
32
AF XY:
0.0165
AC XY:
1227
AN XY:
74464
show subpopulations
Gnomad4 AFR
AF:
0.0587
Gnomad4 AMR
AF:
0.00536
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000235
Gnomad4 OTH
AF:
0.0114
Alfa
AF:
0.00794
Hom.:
20
Bravo
AF:
0.0187
Asia WGS
AF:
0.00260
AC:
9
AN:
3478
EpiCase
AF:
0.000436
EpiControl
AF:
0.000178

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 26, 2024- -
Benign, criteria provided, single submitterclinical testingGeneDxOct 01, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.45
CADD
Benign
10
DANN
Benign
0.71

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: rs16970656; hg19: chr17-33475426; API