rs34423804

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_001304561.2(BTNL2):​c.848A>T​(p.Asp283Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0161 in 1,612,962 control chromosomes in the GnomAD database, including 1,141 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 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 nucleotide change resulting in same amino acid change has been previously reported as Likely benignin UniProt.

Frequency

Genomes: 𝑓 0.017 ( 77 hom., cov: 32)
Exomes 𝑓: 0.016 ( 1064 hom. )

Consequence

BTNL2
NM_001304561.2 missense

Scores

17

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.880
Variant links:
Genes affected
BTNL2 (HGNC:1142): (butyrophilin like 2) This gene encodes a major histocompatibility complex, class II associated, type I transmembrane protein which belongs to the butyrophilin-like B7 family of immunoregulators. It is thought to be involved in immune surveillance, serving as a negative T-cell regulator by decreasing T-cell proliferation and cytokine release. The encoded protein contains an N-terminal signal peptide, two pairs of immunoglobulin-like domains, separated by a heptad peptide sequence, and a C-terminal transmembrane domain. Naturally occurring mutations in this gene are associated with sarcoidosis, rheumatoid arthritis, ulcerative colitis, inflammatory bowel disease, myositis, type 1 diabetes, systemic lupus erythematosus, acute coronary syndrome, and prostate cancer. [provided by RefSeq, May 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0021602213).
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.101 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
BTNL2NM_001304561.2 linkuse as main transcriptc.848A>T p.Asp283Val missense_variant 5/8 ENST00000454136.8 NP_001291490.1 Q9UIR0F8WBA1A0PJV4
TSBP1-AS1NR_136245.1 linkuse as main transcriptn.303-9185T>A intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
BTNL2ENST00000454136.8 linkuse as main transcriptc.848A>T p.Asp283Val missense_variant 5/85 NM_001304561.2 ENSP00000390613.3 F8WBA1

Frequencies

GnomAD3 genomes
AF:
0.0175
AC:
2658
AN:
152134
Hom.:
77
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0205
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0107
Gnomad ASJ
AF:
0.0452
Gnomad EAS
AF:
0.109
Gnomad SAS
AF:
0.100
Gnomad FIN
AF:
0.000377
Gnomad MID
AF:
0.0222
Gnomad NFE
AF:
0.00572
Gnomad OTH
AF:
0.0187
GnomAD3 exomes
AF:
0.0246
AC:
6051
AN:
246452
Hom.:
183
AF XY:
0.0271
AC XY:
3642
AN XY:
134334
show subpopulations
Gnomad AFR exome
AF:
0.0207
Gnomad AMR exome
AF:
0.0109
Gnomad ASJ exome
AF:
0.0496
Gnomad EAS exome
AF:
0.0822
Gnomad SAS exome
AF:
0.0811
Gnomad FIN exome
AF:
0.000231
Gnomad NFE exome
AF:
0.00691
Gnomad OTH exome
AF:
0.0231
GnomAD4 exome
AF:
0.0160
AC:
23318
AN:
1460710
Hom.:
1064
Cov.:
33
AF XY:
0.0183
AC XY:
13320
AN XY:
726676
show subpopulations
Gnomad4 AFR exome
AF:
0.0189
Gnomad4 AMR exome
AF:
0.0117
Gnomad4 ASJ exome
AF:
0.0489
Gnomad4 EAS exome
AF:
0.162
Gnomad4 SAS exome
AF:
0.0828
Gnomad4 FIN exome
AF:
0.000268
Gnomad4 NFE exome
AF:
0.00525
Gnomad4 OTH exome
AF:
0.0207
GnomAD4 genome
AF:
0.0175
AC:
2661
AN:
152252
Hom.:
77
Cov.:
32
AF XY:
0.0191
AC XY:
1420
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.0206
Gnomad4 AMR
AF:
0.0107
Gnomad4 ASJ
AF:
0.0452
Gnomad4 EAS
AF:
0.109
Gnomad4 SAS
AF:
0.100
Gnomad4 FIN
AF:
0.000377
Gnomad4 NFE
AF:
0.00572
Gnomad4 OTH
AF:
0.0180
Alfa
AF:
0.0104
Hom.:
8
Bravo
AF:
0.0160
TwinsUK
AF:
0.00405
AC:
15
ALSPAC
AF:
0.00363
AC:
14
ESP6500AA
AF:
0.0192
AC:
58
ESP6500EA
AF:
0.00886
AC:
48
ExAC
AF:
0.0254
AC:
3017
Asia WGS
AF:
0.0820
AC:
283
AN:
3478
EpiCase
AF:
0.00802
EpiControl
AF:
0.00699

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.053
BayesDel_addAF
Benign
-0.76
T
BayesDel_noAF
Benign
-0.72
CADD
Benign
16
DANN
Benign
0.97
DEOGEN2
Benign
0.0053
T;T;.
Eigen
Benign
-1.2
Eigen_PC
Benign
-0.91
FATHMM_MKL
Benign
0.0094
N
MetaRNN
Benign
0.0022
T;T;T
MetaSVM
Benign
-0.91
T
MutationAssessor
Benign
-2.0
.;N;.
PrimateAI
Benign
0.46
T
PROVEAN
Benign
0.65
.;N;N
REVEL
Benign
0.053
Sift
Benign
0.47
.;T;T
Sift4G
Benign
1.0
T;T;T
Polyphen
0.0
.;B;.
Vest4
0.028
MPC
0.52
ClinPred
0.0018
T
GERP RS
4.0
Varity_R
0.078
gMVP
0.42

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.20
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.20
Position offset: 6

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: rs34423804; hg19: chr6-32364046; API