rs373857660

Variant names:

• chr5-141330982-A-G
• rs373857660
• NM_018912.3:c.298A>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_018912.3(PCDHGA1):​c.298A>G​(p.Met100Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,894 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: PCDHGA1 NM_018912.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -2.76
• Publications: 0 publications found

Genes affected

PCDHGA1 (HGNC:8696): (protocadherin gamma subfamily A, 1) This gene is a member of the protocadherin gamma gene cluster, one of three related clusters tandemly linked on chromosome five. These gene clusters have an immunoglobulin-like organization, suggesting that a novel mechanism may be involved in their regulation and expression. The gamma gene cluster includes 22 genes divided into 3 subfamilies. Subfamily A contains 12 genes, subfamily B contains 7 genes and 2 pseudogenes, and the more distantly related subfamily C contains 3 genes. The tandem array of 22 large, variable region exons are followed by a constant region, containing 3 exons shared by all genes in the cluster. Each variable region exon encodes the extracellular region, which includes 6 cadherin ectodomains and a transmembrane region. The constant region exons encode the common cytoplasmic region. These neural cadherin-like cell adhesion proteins most likely play a critical role in the establishment and function of specific cell-cell connections in the brain. Alternative splicing has been described for the gamma cluster genes. [provided by RefSeq, Jul 2008]

ENSG00000294471 (HGNC:):

PCDHG@ (HGNC:8695):

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.039214045).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018912.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PCDHGA1	NM_018912.3	MANE Select	c.298A>G	p.Met100Val	missense	Exon 1 of 4	NP_061735.1	Q9Y5H4-1
	PCDHGA1	NM_031993.2		c.298A>G	p.Met100Val	missense	Exon 1 of 1	NP_114382.1	Q9Y5H4-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PCDHGA1	ENST00000517417.3	TSL:1 MANE Select	c.298A>G	p.Met100Val	missense	Exon 1 of 4	ENSP00000431083.1	Q9Y5H4-1
	PCDHGA1	ENST00000378105.4	TSL:6	c.298A>G	p.Met100Val	missense	Exon 1 of 1	ENSP00000367345.3	Q9Y5H4-2
	ENSG00000294471	ENST00000723807.1		n.134T>C		non_coding_transcript_exon	Exon 2 of 2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461894 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 727248

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1112012

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000116 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.057
BayesDel_addAF	Benign	-0.43	T
BayesDel_noAF	Benign	-0.85
CADD	Benign	0.17
DANN	Benign	0.39
DEOGEN2	Benign	0.013	T
Eigen	Benign	-2.0
Eigen_PC	Benign	-2.0
FATHMM_MKL	Benign	0.021	N
LIST_S2	Benign	0.051	T
M_CAP	Benign	0.0020	T
MetaRNN	Benign	0.039	T
MetaSVM	Benign	-0.98	T
MutationAssessor	Benign	-0.94	N
PhyloP100		-2.8
PROVEAN	Benign	0.43	N
REVEL	Benign	0.0
Sift	Benign	0.15	T
Sift4G	Benign	0.30	T
Polyphen		0.0	B
Vest4		0.033
MVP		0.11
MPC		0.29
ClinPred		0.066	T
GERP RS		-5.5
PromoterAI		-0.0092	Neutral
Varity_R		0.061
gMVP		0.10
Mutation Taster		=96/4	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs373857660; hg19: chr5-140710549;