chr9-35751395-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001080496.3(RGP1):​c.617C>T​(p.Thr206Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,704 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

RGP1
NM_001080496.3 missense

Scores

6
8
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.76
Variant links:
Genes affected
RGP1 (HGNC:21965): (RGP1 homolog, RAB6A GEF complex partner 1) Enables guanyl-nucleotide exchange factor activity and small GTPase binding activity. Involved in negative regulation of cellular protein catabolic process; positive regulation of GTPase activity; and retrograde transport, endosome to Golgi. Located in cytosol and plasma membrane. Part of Ric1-Rgp1 guanyl-nucleotide exchange factor complex. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.972

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RGP1NM_001080496.3 linkuse as main transcriptc.617C>T p.Thr206Ile missense_variant 6/9 ENST00000378078.5 NP_001073965.2 Q92546A8K0K1
RGP1XR_007061382.1 linkuse as main transcriptn.758C>T non_coding_transcript_exon_variant 6/12
RGP1XR_007061383.1 linkuse as main transcriptn.758C>T non_coding_transcript_exon_variant 6/12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RGP1ENST00000378078.5 linkuse as main transcriptc.617C>T p.Thr206Ile missense_variant 6/91 NM_001080496.3 ENSP00000367318.4 Q92546
RGP1ENST00000496906.1 linkuse as main transcriptn.852C>T non_coding_transcript_exon_variant 5/95

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000402
AC:
1
AN:
248922
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135110
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000887
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461704
Hom.:
0
Cov.:
33
AF XY:
0.00000413
AC XY:
3
AN XY:
727134
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

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 GeneticsAug 20, 2024The c.617C>T (p.T206I) alteration is located in exon 6 (coding exon 5) of the RGP1 gene. This alteration results from a C to T substitution at nucleotide position 617, causing the threonine (T) at amino acid position 206 to be replaced by an isoleucine (I). 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
Pathogenic
0.70
BayesDel_addAF
Pathogenic
0.23
D
BayesDel_noAF
Uncertain
0.090
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Benign
0.21
T
Eigen
Uncertain
0.52
Eigen_PC
Uncertain
0.58
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.89
D
M_CAP
Benign
0.012
T
MetaRNN
Pathogenic
0.97
D
MetaSVM
Benign
-0.52
T
MutationAssessor
Uncertain
2.4
M
PrimateAI
Uncertain
0.56
T
PROVEAN
Pathogenic
-4.5
D
REVEL
Benign
0.25
Sift
Uncertain
0.0010
D
Sift4G
Pathogenic
0.0
D
Polyphen
0.68
P
Vest4
0.79
MutPred
0.93
Loss of loop (P = 0.0512);
MVP
0.52
MPC
0.47
ClinPred
0.99
D
GERP RS
5.8
Varity_R
0.61
gMVP
0.73

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

Publications

LitVar

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

Other links and lift over

dbSNP: rs1012566766; hg19: chr9-35751392; API