11-899389-C-T

Variant summary

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

The NM_023947.4(CHID1):​c.559G>A​(p.Asp187Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000374 in 1,602,534 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

CHID1
NM_023947.4 missense

Scores

1
10
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.411
Variant links:
Genes affected
CHID1 (HGNC:28474): (chitinase domain containing 1) Enables oligosaccharide binding activity. Involved in negative regulation of cytokine production involved in inflammatory response. Located in several cellular components, including late endosome; lysosome; and trans-Golgi network. [provided by Alliance of Genome Resources, Apr 2022]

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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 Protein UniProt
CHID1NM_023947.4 linkuse as main transcriptc.559G>A p.Asp187Asn missense_variant 7/13 ENST00000323578.13 NP_076436.3 Q9BWS9-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CHID1ENST00000323578.13 linkuse as main transcriptc.559G>A p.Asp187Asn missense_variant 7/131 NM_023947.4 ENSP00000325055.8 Q9BWS9-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152244
Hom.:
0
Cov.:
34
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:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000276
AC:
4
AN:
1450290
Hom.:
0
Cov.:
31
AF XY:
0.00000417
AC XY:
3
AN XY:
720030
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000232
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000238
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152244
Hom.:
0
Cov.:
34
AF XY:
0.0000269
AC XY:
2
AN XY:
74372
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756

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 GeneticsMar 31, 2023The c.634G>A (p.D212N) alteration is located in exon 8 (coding exon 7) of the CHID1 gene. This alteration results from a G to A substitution at nucleotide position 634, causing the aspartic acid (D) at amino acid position 212 to be replaced by an asparagine (N). 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
0.13
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.54
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.23
.;T;T;.;.;T
Eigen
Uncertain
0.38
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Benign
0.30
N
LIST_S2
Uncertain
0.87
D;D;.;D;.;.
M_CAP
Uncertain
0.13
D
MetaRNN
Uncertain
0.66
D;D;D;D;D;D
MetaSVM
Uncertain
-0.27
T
MutationAssessor
Uncertain
2.6
.;M;M;M;.;M
MutationTaster
Benign
1.0
D;D;D;D;D;D;D;D
PrimateAI
Benign
0.46
T
PROVEAN
Pathogenic
-4.4
D;D;D;D;D;D
REVEL
Benign
0.20
Sift
Uncertain
0.022
D;D;D;D;D;D
Sift4G
Uncertain
0.022
D;D;D;D;D;D
Polyphen
0.98
D;D;D;P;D;D
Vest4
0.38
MutPred
0.84
.;Gain of helix (P = 0.132);Gain of helix (P = 0.132);Gain of helix (P = 0.132);.;Gain of helix (P = 0.132);
MVP
0.63
MPC
0.41
ClinPred
0.91
D
GERP RS
4.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.47
gMVP
0.94

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: rs1339909384; hg19: chr11-899389; API