NM_018912.3:c.22A>G

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_018912.3(PCDHGA1):c.22A>G(p.Thr8Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000155 in 1,608,600 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: 𝑓 0.000085 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

PCDHGA1
NM_018912.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0750

Publications

0 publications found

Variant links:

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]

PCDHGA1 links:

ENSG00000294471 (HGNC:):

ENSG00000294471 links:

PCDHG@ (HGNC:8695):

PCDHG@ links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP4

Computational evidence support a benign effect (MetaRNN=0.02567631).

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.22A>G	p.Thr8Ala	missense	Exon 1 of 4	NP_061735.1	Q9Y5H4-1
	PCDHGA1	NM_031993.2		c.22A>G	p.Thr8Ala	missense	Exon 1 of 1	NP_114382.1	Q9Y5H4-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PCDHGA1	ENST00000517417.3	TSL:1 MANE Select	c.22A>G	p.Thr8Ala	missense	Exon 1 of 4	ENSP00000431083.1	Q9Y5H4-1
PCDHGA1	ENST00000378105.4	TSL:6	c.22A>G	p.Thr8Ala	missense	Exon 1 of 1	ENSP00000367345.3	Q9Y5H4-2
ENSG00000294471	ENST00000723807.1		n.410T>C		non_coding_transcript_exon	Exon 2 of 2

Frequencies

GnomAD3 genomes

AF:

0.0000854

AC:

AN:

152212

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000314

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000160

AC:

AN:

249968

AF XY:

0.00000740

show subpopulations

Gnomad AFR exome

AF:

0.000247

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000824

AC:

AN:

1456270

Hom.:

Cov.:

AF XY:

0.00000415

AC XY:

AN XY:

723454

show subpopulations

African (AFR)

AF:

0.000361

AC:

AN:

33278

American (AMR)

AF:

0.00

AC:

AN:

44410

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26002

East Asian (EAS)

AF:

0.00

AC:

AN:

39570

South Asian (SAS)

AF:

0.00

AC:

AN:

86026

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53354

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5738

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1107780

Other (OTH)

AF:

0.00

AC:

AN:

60112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.479

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000853

AC:

AN:

152330

Hom.:

Cov.:

AF XY:

0.0000268

AC XY:

AN XY:

74502

show subpopulations

African (AFR)

AF:

0.000313

AC:

AN:

41570

American (AMR)

AF:

0.00

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68026

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.487

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000132

Hom.:

Bravo

AF:

0.000128

ExAC

AF:

0.0000247

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.060

BayesDel_addAF

Benign

-0.54

BayesDel_noAF

Benign

-0.71

CADD

Benign

6.6

(source)

DANN

Benign

0.37

DEOGEN2

Benign

0.024

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.15

LIST_S2

Benign

0.17

M_CAP

Benign

0.0042

MetaRNN

Benign

0.026

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.95

PhyloP100

-0.075

PROVEAN

Benign

0.050

REVEL

Benign

0.010

Sift

Benign

0.74

Sift4G

Benign

0.51

Polyphen

0.0070

Vest4

0.057

MVP

0.24

MPC

0.28

ClinPred

0.0066

GERP RS

0.88

PromoterAI

-0.00070

Neutral

(source)

Varity_R

0.033

gMVP

0.29

Mutation Taster

=97/3

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over