SBF2

SET binding factor 2

Gene Function

Guanine nucleotide exchange factor (GEF) which activates RAB21 and possibly RAB28. Promotes the exchange of GDP to GTP, converting inactive GDP-bound Rab proteins into their active GTP-bound form. In response to starvation-induced autophagy, activates RAB21 which in turn binds to and regulates SNARE protein VAMP8 endolysosomal transport required for SNARE-mediated autophagosome-lysosome fusion. Acts as an adapter for the phosphatase MTMR2 (By similarity). Increases MTMR2 catalytic activity towards phosphatidylinositol 3,5-bisphosphate and to a lesser extent towards phosphatidylinositol 3-phosphate (By similarity) Source: UniProt

Relationship to CMT

CMT4 AR
1 subtype
11p15.4
First described 2003

Subtype Inheritance Class OMIM Sentinel Publication
SubtypeCMT4B2 Inheritanceautosomal recessive ClassCMT4 OMIM604563 Sentinel Publication

2003 · 10.1093/hmg/ddh030

Stored Identifiers

HGNC Aliases: KIAA1766, MTMR13, DENND7B
hgnc_idHGNC:2135
ensembl_gene_idENSG00000133812
coords_grch38chr11:9776776-10304877
coords_grch37chr11:9800214-10315754
entrez_id81846
omim_gene607697
uniprot_idsQ86WG5
refseq_accessionNM_030962
mane_refseqNM_030962.4
mane_ensemblENST00000256190.13

ClinVar Variants

Pathogenic and likely pathogenic variants in SBF2, as classified in ClinVar, are read live from NCBI. Only aggregate germline records are shown. Uncertain and conflicting classifications are not. Experts in CMT makes no claim to the accuracy of ClinVar data. This index is provided for informational purposes only.

Review stars are ClinVar’s measure of how well a classification is supported: four for a practice guideline, three for an expert panel review, two for agreement among multiple submitters, one for a single submitter with criteria provided, and none where no criteria were provided.

Reported in CMT
Reported in Other Diseases

Reported in a disease other than CMT. Listed apart rather than counted as CMT variants.

Variants w/o a Recorded Disease

Pathogenic or likely pathogenic in ClinVar, submitted without a disease recorded.

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