chr19-35755641-G-A

Variant summary

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

The NM_144617.3(HSPB6):​c.364C>T​(p.Arg122Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000306 in 1,534,108 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

HSPB6
NM_144617.3 missense

Scores

4
11
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.46
Variant links:
Genes affected
HSPB6 (HGNC:26511): (heat shock protein family B (small) member 6) This locus encodes a heat shock protein. The encoded protein likely plays a role in smooth muscle relaxation. [provided by RefSeq, Jan 2012]

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 UniProt
HSPB6NM_144617.3 linkuse as main transcriptc.364C>T p.Arg122Cys missense_variant 3/3 ENST00000004982.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HSPB6ENST00000004982.6 linkuse as main transcriptc.364C>T p.Arg122Cys missense_variant 3/31 NM_144617.3 P1
HSPB6ENST00000592984.6 linkuse as main transcriptc.364C>T p.Arg122Cys missense_variant 4/44
HSPB6ENST00000587965.1 linkuse as main transcriptc.*38C>T 3_prime_UTR_variant 2/22

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152066
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000156
AC:
2
AN:
127994
Hom.:
0
AF XY:
0.0000143
AC XY:
1
AN XY:
69874
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:
0.0000424
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000318
AC:
44
AN:
1381928
Hom.:
0
Cov.:
36
AF XY:
0.0000396
AC XY:
27
AN XY:
681928
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:
0.0000409
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152180
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74378
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.0000285
AC:
1

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 GeneticsJan 04, 2022The c.364C>T (p.R122C) alteration is located in exon 3 (coding exon 3) of the HSPB6 gene. This alteration results from a C to T substitution at nucleotide position 364, causing the arginine (R) at amino acid position 122 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
0.25
BayesDel_addAF
Pathogenic
0.18
D
BayesDel_noAF
Uncertain
0.020
CADD
Pathogenic
33
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.82
D;.
Eigen
Uncertain
0.51
Eigen_PC
Uncertain
0.47
FATHMM_MKL
Benign
0.72
D
LIST_S2
Pathogenic
0.98
D;D
M_CAP
Uncertain
0.18
D
MetaRNN
Uncertain
0.47
T;D
MetaSVM
Uncertain
0.65
D
MutationAssessor
Benign
1.9
L;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.70
T
PROVEAN
Uncertain
-3.7
D;.
REVEL
Pathogenic
0.69
Sift
Uncertain
0.0010
D;.
Sift4G
Uncertain
0.017
D;D
Polyphen
1.0
D;.
Vest4
0.46
MutPred
0.49
Loss of MoRF binding (P = 0.0137);Loss of MoRF binding (P = 0.0137);
MVP
0.99
MPC
1.3
ClinPred
0.97
D
GERP RS
4.5
Varity_R
0.63
gMVP
0.71

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: rs577441367; hg19: chr19-36246542; API