3-46439363-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 1P and 14B. PP3BP4_StrongBP6_ModerateBS1BS2

The NM_002343.6(LTF):c.1841C>T(p.Pro614Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00186 in 1,614,156 control chromosomes in the GnomAD database, including 12 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0027 ( 2 hom., cov: 33)

Exomes 𝑓: 0.0018 ( 10 hom. )

Consequence

LTF
NM_002343.6 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 8.36

Publications

8 publications found

Variant links:

Genes affected

LTF (HGNC:6720): (lactotransferrin) This gene is a member of the transferrin family of genes and its protein product is found in the secondary granules of neutrophils. The protein is a major iron-binding protein in milk and body secretions with an antimicrobial activity, making it an important component of the non-specific immune system. The protein demonstrates a broad spectrum of properties, including regulation of iron homeostasis, host defense against a broad range of microbial infections, anti-inflammatory activity, regulation of cellular growth and differentiation and protection against cancer development and metastasis. Antimicrobial, antiviral, antifungal and antiparasitic activity has been found for this protein and its peptides. Activity against both DNA and RNA viruses has been found, including activity against SARS-CoV-2, and HIV. [provided by RefSeq, Jul 2021]

LTF links:

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

PP3

Multiple lines of computational evidence support a deleterious effect 9: AlphaMissense, BayesDel_noAF, Cadd, Dann, Eigen, FATHMM_MKL, MutationAssessor, phyloP100way_vertebrate, PROVEAN [when BayesDel_addAF, max_spliceai, MetaRNN, MutationTaster was below the threshold]

BP4

Computational evidence support a benign effect (MetaRNN=0.019132912).

BP6

Variant 3-46439363-G-A is Benign according to our data. Variant chr3-46439363-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2653732.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.00177 (2587/1461852) while in subpopulation MID AF = 0.0187 (108/5768). AF 95% confidence interval is 0.0159. There are 10 homozygotes in GnomAdExome4. There are 1321 alleles in the male GnomAdExome4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 2 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LTF	NM_002343.6 link	c.1841C>T	p.Pro614Leu	missense_variant	Exon 15 of 17	ENST00000231751.9	NP_002334.2	P02788-1V9HWI4
LTF	NM_001321121.2 link	c.1835C>T	p.Pro612Leu	missense_variant	Exon 15 of 17		NP_001308050.1	P02788Q2TUW9V9HWI4E7ER44
LTF	NM_001321122.2 link	c.1802C>T	p.Pro601Leu	missense_variant	Exon 18 of 20		NP_001308051.1	P02788V9HWI4B3KSL2
LTF	NM_001199149.2 link	c.1709C>T	p.Pro570Leu	missense_variant	Exon 15 of 17		NP_001186078.1	P02788-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LTF	ENST00000231751.9 link	c.1841C>T	p.Pro614Leu	missense_variant	Exon 15 of 17	1	NM_002343.6	ENSP00000231751.4		P02788-1

Frequencies

GnomAD3 genomes

AF:

0.00269

AC:

409

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00779

Gnomad ASJ

AF:

0.0182

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00104

Gnomad MID

AF:

0.0127

Gnomad NFE

AF:

0.00144

Gnomad OTH

AF:

0.00621

GnomAD2 exomes

AF:

0.00262

AC:

658

AN:

251336

AF XY:

0.00242

show subpopulations

Gnomad AFR exome

AF:

0.00252

Gnomad AMR exome

AF:

0.00474

Gnomad ASJ exome

AF:

0.0166

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00171

Gnomad NFE exome

AF:

0.00184

Gnomad OTH exome

AF:

0.00587

GnomAD4 exome

AF:

0.00177

AC:

2587

AN:

1461852

Hom.:

Cov.:

AF XY:

0.00182

AC XY:

1321

AN XY:

727230

show subpopulations

African (AFR)

AF:

0.00242

AC:

AN:

33478

American (AMR)

AF:

0.00487

AC:

218

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.0179

AC:

469

AN:

26130

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39694

South Asian (SAS)

AF:

0.000185

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00172

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.0187

AC:

108

AN:

5768

European-Non Finnish (NFE)

AF:

0.00123

AC:

1373

AN:

1111992

Other (OTH)

AF:

0.00379

AC:

229

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.473

Heterozygous variant carriers

147

294

440

587

734

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00268

AC:

408

AN:

152304

Hom.:

Cov.:

AF XY:

0.00265

AC XY:

197

AN XY:

74464

show subpopulations

African (AFR)

AF:

0.00238

AC:

AN:

41574

American (AMR)

AF:

0.00778

AC:

119

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.0182

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5172

South Asian (SAS)

AF:

0.000414

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00104

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.0102

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00144

AC:

AN:

68036

Other (OTH)

AF:

0.00615

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.493

Heterozygous variant carriers

114

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00272

Hom.:

Bravo

AF:

0.00320

TwinsUK

AF:

0.00216

AC:

ALSPAC

AF:

0.00156

AC:

ESP6500AA

AF:

0.00136

AC:

ESP6500EA

AF:

0.00233

AC:

ExAC

AF:

0.00250

AC:

303

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00245

EpiControl

AF:

0.00237

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Jan 01, 2023

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

LTF: BS2 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.58

BayesDel_addAF

Benign

-0.045

BayesDel_noAF

Pathogenic

0.16

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.30

T;.;.;.

Eigen

Pathogenic

0.82

Eigen_PC

Uncertain

0.66

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.97

D;D;D;D

M_CAP

Uncertain

0.087

MetaRNN

Benign

0.019

T;T;T;T

MetaSVM

Benign

-0.44

MutationAssessor

Pathogenic

4.0

H;.;.;.

PhyloP100

8.4

PrimateAI

Uncertain

0.54

PROVEAN

Pathogenic

-8.7

D;D;D;D

REVEL

Uncertain

0.58

Sift

Pathogenic

0.0

D;D;D;D

Sift4G

Uncertain

0.0020

D;D;D;D

Polyphen

1.0

D;.;D;D

Vest4

0.65

MVP

0.65

MPC

0.42

ClinPred

0.15

GERP RS

5.1

Varity_R

0.94

gMVP

0.90

Mutation Taster

=80/20

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

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3-46439363-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over