rs760298108

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_005142.3(CBLIF):​c.1087A>G​(p.Met363Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000202 in 1,585,668 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

CBLIF
NM_005142.3 missense

Scores

1
16

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.12
Variant links:
Genes affected
CBLIF (HGNC:4268): (cobalamin binding intrinsic factor) This gene is a member of the cobalamin transport protein family. It encodes a glycoprotein secreted by parietal cells of the gastric mucosa and is required for adequate absorption of vitamin B12. Vitamin B12 is necessary for erythrocyte maturation and mutations in this gene may lead to congenital pernicious anemia. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.21978346).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CBLIFNM_005142.3 linkc.1087A>G p.Met363Val missense_variant Exon 8 of 9 ENST00000257248.3 NP_005133.2 P27352-1
CBLIFXM_011544939.4 linkc.1045A>G p.Met349Val missense_variant Exon 8 of 9 XP_011543241.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CBLIFENST00000257248.3 linkc.1087A>G p.Met363Val missense_variant Exon 8 of 9 1 NM_005142.3 ENSP00000257248.2 P27352-1
CBLIFENST00000525058.5 linkn.*1054A>G non_coding_transcript_exon_variant Exon 8 of 9 2 ENSP00000433196.1 E9PM21
CBLIFENST00000533067.1 linkn.134A>G non_coding_transcript_exon_variant Exon 2 of 2 3
CBLIFENST00000525058.5 linkn.*1054A>G 3_prime_UTR_variant Exon 8 of 9 2 ENSP00000433196.1 E9PM21

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152110
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000358
AC:
9
AN:
251390
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135868
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000202
AC:
29
AN:
1433558
Hom.:
0
Cov.:
25
AF XY:
0.0000168
AC XY:
12
AN XY:
715026
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000112
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000506
Gnomad4 SAS exome
AF:
0.0000350
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000175
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152110
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74328
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000189
ExAC
AF:
0.0000330
AC:
4

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Apr 22, 2022
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.1087A>G (p.M363V) alteration is located in exon 8 (coding exon 8) of the GIF gene. This alteration results from a A to G substitution at nucleotide position 1087, causing the methionine (M) at amino acid position 363 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Hereditary intrinsic factor deficiency Uncertain:1
Oct 19, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 363 of the GIF protein (p.Met363Val). This variant is present in population databases (rs760298108, gnomAD 0.01%). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt GIF protein function. This variant has not been reported in the literature in individuals affected with GIF-related conditions. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
21
DANN
Benign
0.96
Eigen
Benign
0.088
Eigen_PC
Benign
0.13
FATHMM_MKL
Benign
0.61
D
LIST_S2
Benign
0.73
T
M_CAP
Benign
0.0082
T
MetaRNN
Benign
0.22
T
MetaSVM
Benign
-0.93
T
PrimateAI
Uncertain
0.51
T
PROVEAN
Benign
-0.86
N
REVEL
Benign
0.055
Sift
Benign
0.091
T
Sift4G
Benign
0.23
T
Vest4
0.38
MVP
0.49
MPC
0.14
ClinPred
0.088
T
GERP RS
4.2
gMVP
0.50

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs760298108; hg19: chr11-59599256; COSMIC: COSV99950771; COSMIC: COSV99950771; API