7-132133074-G-T

Variant names:

• chr7-132133074-G-T
• rs200763664
• NM_020911.2:c.5564C>A

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_020911.2(PLXNA4):​c.5564C>A​(p.Ser1855Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,844 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S1855F) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: PLXNA4 NM_020911.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 8.09
• Publications: 0 publications found

Genes affected

PLXNA4 (HGNC:9102): (plexin A4) Predicted to enable semaphorin receptor activity. Predicted to be involved in several processes, including axon guidance; positive regulation of axonogenesis; and regulation of GTPase activity. Predicted to act upstream of or within several processes, including nervous system development; regulation of axon extension involved in axon guidance; and regulation of negative chemotaxis. Predicted to be located in plasma membrane. Predicted to be part of semaphorin receptor complex. Predicted to be integral component of plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020911.2. 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
	PLXNA4	NM_020911.2	MANE Select	c.5564C>A	p.Ser1855Tyr	missense	Exon 31 of 32	NP_065962.1	Q9HCM2-1
	PLXNA4	NM_001393897.1		c.5564C>A	p.Ser1855Tyr	missense	Exon 31 of 32	NP_001380826.1	Q9HCM2-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PLXNA4	ENST00000321063.9	TSL:5 MANE Select	c.5564C>A	p.Ser1855Tyr	missense	Exon 31 of 32	ENSP00000323194.4	Q9HCM2-1
	PLXNA4	ENST00000359827.7	TSL:5	c.5564C>A	p.Ser1855Tyr	missense	Exon 31 of 32	ENSP00000352882.3	Q9HCM2-1
	PLXNA4	ENST00000948949.1		c.5564C>A	p.Ser1855Tyr	missense	Exon 32 of 33	ENSP00000619008.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461844 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 727224

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

American (AMR) AF: 0.00 AC: 0 AN: 44716

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86250

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111988

Other (OTH) AF: 0.00 AC: 0 AN: 60394

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.30
BayesDel_addAF	Uncertain	0.012	T
BayesDel_noAF	Benign	-0.22
CADD	Uncertain	23
DANN	Benign	0.96
DEOGEN2	Benign	0.14	T
Eigen	Uncertain	0.21
Eigen_PC	Uncertain	0.28
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.90	D
M_CAP	Benign	0.012	T
MetaRNN	Uncertain	0.65	D
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.2	M
PhyloP100		8.1
PrimateAI	Uncertain	0.74	T
PROVEAN	Uncertain	-2.4	N
REVEL	Benign	0.23
Sift	Benign	1.0	T
Sift4G	Benign	0.12	T
Polyphen		0.19	B
Vest4		0.81
MutPred		0.49		Gain of catalytic residue at L1850 (P = 0.0973)
MVP		0.43
MPC		0.78
ClinPred		0.77	D
GERP RS		5.1
Varity_R		0.37
gMVP		0.41
Mutation Taster		=75/25	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

Other links and lift over

dbSNP: rs200763664; hg19: chr7-131817833;