rs199879996

Variant names:

• chr1-113895135-G-A
• rs199879996
• NM_001253852.3:c.2150C>T

Your query was ambiguous. Multiple possible variants found:

• chr1-113895135-G-A
• chr1-113895135-G-C

Variant summary

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

The NM_001253852.3(AP4B1):​c.2150C>T​(p.Thr717Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000359 in 1,614,078 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. T717T) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.000033 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000036 (0 hom.)
• Consequence: AP4B1 NM_001253852.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.81
• Publications: 2 publications found

Genes affected

AP4B1 (HGNC:572): (adaptor related protein complex 4 subunit beta 1) This gene encodes a subunit of a heterotetrameric adapter-like complex 4 that is involved in targeting proteins from the trans-Golgi network to the endosomal-lysosomal system. Mutations in this gene are associated with cerebral palsy spastic quadriplegic type 5 (CPSQ5) disorder. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2011]

AP4B1-AS1 (HGNC:44114): (AP4B1 antisense RNA 1)

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=0.052170485).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001253852.3. 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
	AP4B1	NM_001253852.3	MANE Select	c.2150C>T	p.Thr717Met	missense	Exon 10 of 10	NP_001240781.1	Q9Y6B7-1
	AP4B1	NM_001438373.1		c.2150C>T	p.Thr717Met	missense	Exon 11 of 11	NP_001425302.1
	AP4B1	NM_006594.5		c.2150C>T	p.Thr717Met	missense	Exon 11 of 11	NP_006585.2	Q9Y6B7-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AP4B1	ENST00000369569.6	TSL:1 MANE Select	c.2150C>T	p.Thr717Met	missense	Exon 10 of 10	ENSP00000358582.1	Q9Y6B7-1
	AP4B1	ENST00000256658.8	TSL:1	c.2150C>T	p.Thr717Met	missense	Exon 11 of 11	ENSP00000256658.4	Q9Y6B7-1
	AP4B1	ENST00000863127.1		c.2276C>T	p.Thr759Met	missense	Exon 11 of 11	ENSP00000533186.1

Frequencies

GnomAD3 genomes AF: 0.0000329 AC: 5 AN: 152112 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000192

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000588

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000318 AC: 8 AN: 251310 AF XY: 0.0000368

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000163

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000264

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.0000363 AC: 53 AN: 1461850 Hom.: 0 Cov.: 31 AF XY: 0.0000385 AC XY: 28 AN XY: 727228

African (AFR) AF: 0.0000597 AC: 2 AN: 33480

American (AMR) AF: 0.0000224 AC: 1 AN: 44714

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.000101 AC: 4 AN: 39700

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

European-Finnish (FIN) AF: 0.0000374 AC: 2 AN: 53412

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

European-Non Finnish (NFE) AF: 0.0000396 AC: 44 AN: 1111990

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

GnomAD4 genome AF: 0.0000328 AC: 5 AN: 152228 Hom.: 0 Cov.: 32 AF XY: 0.0000403 AC XY: 3 AN XY: 74428

African (AFR) AF: 0.00 AC: 0 AN: 41522

American (AMR) AF: 0.00 AC: 0 AN: 15294

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.000193 AC: 1 AN: 5184

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10594

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.0000588 AC: 4 AN: 68012

Other (OTH) AF: 0.00 AC: 0 AN: 2114

Alfa AF: 0.0000564 Hom.: 0

Bravo AF: 0.0000453

ExAC AF: 0.0000165 AC: 2

Asia WGS AF: 0.000289 AC: 1 AN: 3478

EpiCase AF: 0.00

EpiControl AF: 0.0000593

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Hereditary spastic paraplegia 47 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.064
BayesDel_addAF	Benign	-0.34	T
BayesDel_noAF	Benign	-0.51
CADD	Benign	10
DANN	Benign	0.80
DEOGEN2	Benign	0.077	T
Eigen	Benign	-0.49
Eigen_PC	Benign	-0.54
FATHMM_MKL	Benign	0.20	N
LIST_S2	Benign	0.76	T
M_CAP	Benign	0.024	T
MetaRNN	Benign	0.052	T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	1.4	L
PhyloP100		2.8
PrimateAI	Benign	0.28	T
PROVEAN	Benign	-0.53	N
REVEL	Benign	0.12
Sift	Benign	0.16	T
Sift4G	Benign	0.079	T
Polyphen		0.99	D
Vest4		0.091
MVP		0.76
MPC		0.13
ClinPred		0.15	T
GERP RS		3.7
Varity_R		0.012
gMVP		0.31
Mutation Taster		=87/13	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: rs199879996; hg19: chr1-114437757;