rs762259673

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_018360.3(TXLNG):​c.1258C>T​(p.Arg420Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000037 in 1,189,106 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 15 hemizygotes in GnomAD. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 1 hem., cov: 22)
Exomes 𝑓: 0.000039 ( 0 hom. 14 hem. )

Consequence

TXLNG
NM_018360.3 missense

Scores

3
6
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.02

Publications

0 publications found
Variant links:
Genes affected
TXLNG (HGNC:18578): (taxilin gamma) This gene encodes a member of the taxilin family. The encoded protein binds to the C-terminal coiled-coil region of syntaxin family members 1A, 3A and 4A, and may play a role in intracellular vesicle trafficking. This gene is up-regulated by lipopolysaccharide and the gene product may be involved in cell cycle regulation. The related mouse protein was also shown to inhibit activating transcription factor 4-mediated transcription and thus regulate bone mass accrual. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2009]
RBBP7 (HGNC:9890): (RB binding protein 7, chromatin remodeling factor) This protein is a ubiquitously expressed nuclear protein and belongs to a highly conserved subfamily of WD-repeat proteins. It is found among several proteins that binds directly to retinoblastoma protein, which regulates cell proliferation. The encoded protein is found in many histone deacetylase complexes, including mSin3 co-repressor complex. It is also present in protein complexes involved in chromatin assembly. This protein can interact with BRCA1 tumor-suppressor gene and may have a role in the regulation of cell proliferation and differentiation. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2010]
RBBP7 Gene-Disease associations (from GenCC):
  • spermatogenic failure, X-linked, 9
    Inheritance: XL Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS2
High Hemizygotes in GnomAdExome4 at 14 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TXLNGNM_018360.3 linkc.1258C>T p.Arg420Cys missense_variant Exon 10 of 10 ENST00000380122.10 NP_060830.2 Q9NUQ3-1
TXLNGNM_001168683.2 linkc.862C>T p.Arg288Cys missense_variant Exon 8 of 8 NP_001162154.1 Q9NUQ3-2
TXLNGXM_024452400.2 linkc.1141C>T p.Arg381Cys missense_variant Exon 10 of 10 XP_024308168.1
TXLNGXM_017029631.2 linkc.643C>T p.Arg215Cys missense_variant Exon 7 of 7 XP_016885120.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TXLNGENST00000380122.10 linkc.1258C>T p.Arg420Cys missense_variant Exon 10 of 10 1 NM_018360.3 ENSP00000369465.5 Q9NUQ3-1
TXLNGENST00000398155.4 linkc.862C>T p.Arg288Cys missense_variant Exon 8 of 8 1 ENSP00000381222.4 Q9NUQ3-2
TXLNGENST00000485153.1 linkn.149C>T non_coding_transcript_exon_variant Exon 2 of 2 3
RBBP7ENST00000425696.5 linkc.*8-2047G>A intron_variant Intron 4 of 4 5 ENSP00000415747.1 Q5JNZ6

Frequencies

GnomAD3 genomes
AF:
0.0000180
AC:
2
AN:
111159
Hom.:
0
Cov.:
22
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:
0.000280
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000189
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000419
AC:
7
AN:
167058
AF XY:
0.0000350
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000857
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000651
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000390
AC:
42
AN:
1077893
Hom.:
0
Cov.:
29
AF XY:
0.0000400
AC XY:
14
AN XY:
350209
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
25329
American (AMR)
AF:
0.0000960
AC:
3
AN:
31248
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
18463
East Asian (EAS)
AF:
0.00
AC:
0
AN:
29959
South Asian (SAS)
AF:
0.00
AC:
0
AN:
51427
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40189
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
3999
European-Non Finnish (NFE)
AF:
0.0000469
AC:
39
AN:
832213
Other (OTH)
AF:
0.00
AC:
0
AN:
45066
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
4
8
12
16
20
<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:
0.0000180
AC:
2
AN:
111213
Hom.:
0
Cov.:
22
AF XY:
0.0000299
AC XY:
1
AN XY:
33463
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30574
American (AMR)
AF:
0.00
AC:
0
AN:
10465
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2638
East Asian (EAS)
AF:
0.000281
AC:
1
AN:
3558
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2640
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
5913
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
217
European-Non Finnish (NFE)
AF:
0.0000189
AC:
1
AN:
53029
Other (OTH)
AF:
0.00
AC:
0
AN:
1492
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
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:
0.0000480
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000577
AC:
7

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jun 07, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1258C>T (p.R420C) alteration is located in exon 10 (coding exon 10) of the TXLNG gene. This alteration results from a C to T substitution at nucleotide position 1258, causing the arginine (R) at amino acid position 420 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
0.24
BayesDel_addAF
Benign
-0.062
T
BayesDel_noAF
Benign
-0.13
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.24
T;.
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.92
D;D
M_CAP
Benign
0.063
D
MetaRNN
Uncertain
0.65
D;D
MetaSVM
Benign
-0.74
T
MutationAssessor
Uncertain
2.7
M;.
PhyloP100
4.0
PrimateAI
Uncertain
0.73
T
PROVEAN
Pathogenic
-6.8
D;D
REVEL
Benign
0.27
Sift
Pathogenic
0.0
D;D
Sift4G
Uncertain
0.0030
D;D
Polyphen
1.0
D;D
Vest4
0.60
MutPred
0.68
Loss of MoRF binding (P = 0.0113);.;
MVP
0.50
MPC
0.032
ClinPred
0.75
D
GERP RS
5.1
Varity_R
0.84
gMVP
0.62
Mutation Taster
=84/16
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: rs762259673; hg19: chrX-16859560; API