2-3697376-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_018436.4(ALLC):​c.770C>T​(p.Pro257Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000366 in 1,613,742 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000037 ( 0 hom. )

Consequence

ALLC
NM_018436.4 missense

Scores

1
3
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.808
Variant links:
Genes affected
ALLC (HGNC:17377): (allantoicase) Allantoicase (EC 3.5.3.4) participates in the uric acid degradation pathway. Its enzymatic activity, like that of urate oxidase (MIM 191540), was lost during vertebrate evolution.[supplied by OMIM, Nov 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.353293).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ALLCNM_018436.4 linkuse as main transcriptc.770C>T p.Pro257Leu missense_variant 10/12 ENST00000252505.4 NP_060906.3 Q8N6M5-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ALLCENST00000252505.4 linkuse as main transcriptc.770C>T p.Pro257Leu missense_variant 10/121 NM_018436.4 ENSP00000252505.3 Q8N6M5-1
ALLCENST00000471711.1 linkuse as main transcriptn.434C>T non_coding_transcript_exon_variant 4/63
ALLCENST00000476389.5 linkuse as main transcriptn.1355C>T non_coding_transcript_exon_variant 3/52

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152102
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000281
AC:
7
AN:
249226
Hom.:
0
AF XY:
0.0000222
AC XY:
3
AN XY:
135210
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000443
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000369
AC:
54
AN:
1461522
Hom.:
0
Cov.:
30
AF XY:
0.0000275
AC XY:
20
AN XY:
727056
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000459
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152220
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74420
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000735
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000100
Hom.:
0
Bravo
AF:
0.0000113
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000244
AC:
2
ExAC
AF:
0.0000414
AC:
5
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 24, 2024The c.770C>T (p.P257L) alteration is located in exon 10 (coding exon 9) of the ALLC gene. This alteration results from a C to T substitution at nucleotide position 770, causing the proline (P) at amino acid position 257 to be replaced by a leucine (L). 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
0.11
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.34
CADD
Benign
21
DANN
Uncertain
0.99
Eigen
Benign
-0.076
Eigen_PC
Benign
-0.32
FATHMM_MKL
Benign
0.058
N
LIST_S2
Benign
0.76
T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.35
T
MetaSVM
Benign
-0.79
T
PrimateAI
Benign
0.43
T
PROVEAN
Pathogenic
-7.0
D
REVEL
Benign
0.11
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0030
D
Vest4
0.45
MVP
0.11
MPC
0.19
ClinPred
0.63
D
GERP RS
1.6
Varity_R
0.46
gMVP
0.52

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs375032704; hg19: chr2-3744966; COSMIC: COSV52997276; API