rs575227050

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001297436.2(HAS1):​c.1715G>T​(p.Gly572Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000124 in 1,538,418 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G572D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

HAS1
NM_001297436.2 missense

Scores

2
16

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.0550

Publications

0 publications found
Variant links:
Genes affected
HAS1 (HGNC:4818): (hyaluronan synthase 1) Hyaluronan or hyaluronic acid (HA) is a high molecular weight unbranched polysaccharide synthesized by a wide variety of organisms from bacteria to mammals, and is a constituent of the extracellular matrix. It consists of alternating glucuronic acid and N-acetylglucosamine residues that are linked by beta-1-3 and beta-1-4 glycosidic bonds. HA is synthesized by membrane-bound synthase at the inner surface of the plasma membrane, and the chains are extruded through pore-like structures into the extracellular space. It serves a variety of functions, including space filling, lubrication of joints, and provision of a matrix through which cells can migrate. HA is actively produced during wound healing and tissue repair to provide a framework for ingrowth of blood vessels and fibroblasts. Changes in the serum concentration of HA are associated with inflammatory and degenerative arthropathies such as rheumatoid arthritis. In addition, the interaction of HA with the leukocyte receptor CD44 is important in tissue-specific homing by leukocytes, and overexpression of HA receptors has been correlated with tumor metastasis. HAS1 is a member of the newly identified vertebrate gene family encoding putative hyaluronan synthases, and its amino acid sequence shows significant homology to the hasA gene product of Streptococcus pyogenes, a glycosaminoglycan synthetase (DG42) from Xenopus laevis, and a recently described murine hyaluronan synthase. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2014]

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.12437242).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001297436.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HAS1
NM_001297436.2
MANE Select
c.1715G>Tp.Gly572Val
missense
Exon 5 of 5NP_001284365.1G3V1S7
HAS1
NM_001523.4
c.1718G>Tp.Gly573Val
missense
Exon 5 of 5NP_001514.2Q92839

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HAS1
ENST00000540069.7
TSL:1 MANE Select
c.1715G>Tp.Gly572Val
missense
Exon 5 of 5ENSP00000445021.2G3V1S7
HAS1
ENST00000601714.5
TSL:1
c.1739G>Tp.Gly580Val
missense
Exon 4 of 4ENSP00000472821.1M0R2V0
HAS1
ENST00000222115.5
TSL:1
c.1718G>Tp.Gly573Val
missense
Exon 5 of 5ENSP00000222115.1Q92839

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152236
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000556
AC:
1
AN:
179930
AF XY:
0.0000101
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000130
AC:
18
AN:
1386182
Hom.:
0
Cov.:
32
AF XY:
0.0000147
AC XY:
10
AN XY:
681426
show subpopulations
African (AFR)
AF:
0.0000322
AC:
1
AN:
31046
American (AMR)
AF:
0.00
AC:
0
AN:
34690
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
21770
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38360
South Asian (SAS)
AF:
0.0000132
AC:
1
AN:
75706
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48984
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5374
European-Non Finnish (NFE)
AF:
0.0000149
AC:
16
AN:
1073244
Other (OTH)
AF:
0.00
AC:
0
AN:
57008
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152236
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74376
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41462
American (AMR)
AF:
0.00
AC:
0
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68044
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.625
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.60
CADD
Benign
18
DANN
Benign
0.93
DEOGEN2
Benign
0.20
T
Eigen
Benign
-0.55
Eigen_PC
Benign
-0.57
FATHMM_MKL
Benign
0.15
N
LIST_S2
Benign
0.81
T
M_CAP
Uncertain
0.14
D
MetaRNN
Benign
0.12
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.1
L
PhyloP100
0.055
PrimateAI
Uncertain
0.67
T
PROVEAN
Benign
-2.2
N
REVEL
Benign
0.036
Sift
Benign
0.62
T
Sift4G
Benign
0.20
T
Polyphen
0.41
B
Vest4
0.31
MutPred
0.35
Gain of sheet (P = 0.0085)
MVP
0.29
MPC
0.089
ClinPred
0.19
T
GERP RS
2.7
Varity_R
0.10
gMVP
0.49
Mutation Taster
=90/10
polymorphism

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

Other links and lift over

dbSNP: rs575227050; hg19: chr19-52216699; API