rs375845310

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PP3_ModeratePP5

The NM_007255.3(B4GALT7):ā€‹c.122T>Cā€‹(p.Leu41Pro) variant causes a missense change. The variant allele was found at a frequency of 0.0000031 in 1,613,640 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 Pathogenic (no stars).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000027 ( 0 hom. )

Consequence

B4GALT7
NM_007255.3 missense

Scores

5
11
3

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 5.21
Variant links:
Genes affected
B4GALT7 (HGNC:930): (beta-1,4-galactosyltransferase 7) This gene is a member of the beta-1,4-galactosyltransferase (beta4GalT) family. Family members encode type II membrane-bound glycoproteins that appear to have exclusive specificity for the donor substrate UDP-galactose. Each beta4GalT member has a distinct function in the biosynthesis of different glycoconjugates and saccharide structures. As type II membrane proteins, they have an N-terminal hydrophobic signal sequence that directs the protein to the Golgi apparatus which then remains uncleaved to function as a transmembrane anchor. The enzyme encoded by this gene attaches the first galactose in the common carbohydrate-protein linkage (GlcA-beta1,3-Gal-beta1,3-Gal-beta1,4-Xyl-beta1-O-Ser) found in proteoglycans. This enzyme differs from other beta4GalTs because it lacks the conserved Cys residues found in beta4GalT1-beta4GalT6 and it is located in cis-Golgi instead of trans-Golgi. Mutations in this gene have been associated with the progeroid form of Ehlers-Danlos syndrome. [provided by RefSeq, Oct 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.892
PP5
Variant 5-177604250-T-C is Pathogenic according to our data. Variant chr5-177604250-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 225691.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr5-177604250-T-C is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
B4GALT7NM_007255.3 linkuse as main transcriptc.122T>C p.Leu41Pro missense_variant 2/6 ENST00000029410.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
B4GALT7ENST00000029410.10 linkuse as main transcriptc.122T>C p.Leu41Pro missense_variant 2/61 NM_007255.3 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152192
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000805
AC:
2
AN:
248544
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
134946
show subpopulations
Gnomad AFR exome
AF:
0.0000633
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:
0.00000892
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461448
Hom.:
0
Cov.:
30
AF XY:
0.00000275
AC XY:
2
AN XY:
727042
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
AF:
0.00000657
AC:
1
AN:
152192
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74352
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000689
Hom.:
0
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Ehlers-Danlos syndrome progeroid type Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMDec 22, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.62
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Uncertain
0.10
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Benign
0.28
T
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.50
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.73
T
M_CAP
Pathogenic
0.31
D
MetaRNN
Pathogenic
0.89
D
MetaSVM
Uncertain
0.069
D
MutationAssessor
Uncertain
2.6
M
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.82
D
PROVEAN
Uncertain
-3.5
D
REVEL
Pathogenic
0.73
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.0030
D
Polyphen
1.0
D
Vest4
0.86
MVP
0.94
MPC
0.56
ClinPred
0.90
D
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.86
gMVP
0.88

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: rs375845310; hg19: chr5-177031251; API