16-67483099-G-A

Variant names:

• chr16-67483099-G-A
• rs370523045
• NM_001138.2:c.142C>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001138.2(AGRP):​c.142C>T​(p.Arg48Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000502 in 1,613,910 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000066 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000049 (0 hom.)
• Consequence: AGRP NM_001138.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.570
• Publications: 5 publications found

Genes affected

AGRP (HGNC:330): (agouti related neuropeptide) This gene encodes an antagonist of the melanocortin-3 and melanocortin-4 receptor. It appears to regulate hypothalamic control of feeding behavior via melanocortin receptor and/or intracellular calcium regulation, and thus plays a role in weight homeostasis. Mutations in this gene have been associated with late on-set obesity. [provided by RefSeq, Dec 2009]

ATP6V0D1-DT (HGNC:55268): (ATP6V0D1 divergent transcript)

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.091801256).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AGRP	NM_001138.2	c.142C>T	p.Arg48Trp	missense_variant	Exon 3 of 4	ENST00000290953.3	NP_001129.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AGRP	ENST00000290953.3	c.142C>T	p.Arg48Trp	missense_variant	Exon 3 of 4	1	NM_001138.2	ENSP00000290953.3

Frequencies

GnomAD3 genomes AF: 0.0000657 AC: 10 AN: 152190 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000965

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000196

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: 0.0000294

Gnomad OTH AF: 0.000478

GnomAD2 exomes AF: 0.0000678 AC: 17 AN: 250686 AF XY: 0.0000884

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000116

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000115

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000486 AC: 71 AN: 1461720 Hom.: 0 Cov.: 32 AF XY: 0.0000509 AC XY: 37 AN XY: 727174

African (AFR) AF: 0.0000299 AC: 1 AN: 33478

American (AMR) AF: 0.000112 AC: 5 AN: 44722

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

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: 53368

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

European-Non Finnish (NFE) AF: 0.0000567 AC: 63 AN: 1111902

Other (OTH) AF: 0.0000331 AC: 2 AN: 60392

GnomAD4 genome AF: 0.0000657 AC: 10 AN: 152190 Hom.: 0 Cov.: 33 AF XY: 0.0000672 AC XY: 5 AN XY: 74352

African (AFR) AF: 0.0000965 AC: 4 AN: 41442

American (AMR) AF: 0.000196 AC: 3 AN: 15290

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5182

South Asian (SAS) AF: 0.00 AC: 0 AN: 4834

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10620

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 68030

Other (OTH) AF: 0.000478 AC: 1 AN: 2092

Alfa AF: 0.0000669 Hom.: 0

Bravo AF: 0.0000642

TwinsUK AF: 0.00 AC: 0

ALSPAC AF: 0.000259 AC: 1

ESP6500AA AF: 0.000227 AC: 1

ESP6500EA AF: 0.00 AC: 0

ExAC AF: 0.0000577 AC: 7

EpiCase AF: 0.0000545

EpiControl AF: 0.000178

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

May 24, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.142C>T (p.R48W) alteration is located in exon 3 (coding exon 2) of the AGRP gene. This alteration results from a C to T substitution at nucleotide position 142, causing the arginine (R) at amino acid position 48 to be replaced by a tryptophan (W). 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	0.083
BayesDel_addAF	Benign	-0.46	T
BayesDel_noAF	Benign	-0.68
CADD	Benign	16
DANN	Benign	0.94
DEOGEN2	Benign	0.40	T
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.085	N
LIST_S2	Benign	0.39	T
M_CAP	Benign	0.0087	T
MetaRNN	Benign	0.092	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.7	L
PhyloP100		0.57
PrimateAI	Benign	0.28	T
PROVEAN	Benign	-0.42	N
REVEL	Benign	0.064
Sift	Uncertain	0.010	D
Sift4G	Uncertain	0.010	D
Polyphen		0.0020	B
Vest4		0.14
MVP		0.23
MPC		0.96
ClinPred		0.078	T
GERP RS		-0.17
PromoterAI		-0.0055	Neutral
Varity_R		0.14
gMVP		0.36
Mutation Taster		=97/3	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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: rs370523045; hg19: chr16-67517002; COSMIC: COSV52097179; COSMIC: COSV52097179;