RAB27B
RAB27B, member RAS oncogene family

Enables guanyl ribonucleotide binding activity; myosin V binding activity; and protein domain specific binding activity. Involved in multivesicular body sorting pathway and positive regulation of exocytosis. Located in Golgi stack and cytoplasmic vesicle. [provided by Alliance of Genome Resources, Jul 2025]

Biological processes 46 terms
G protein activity (GO:0003925)G protein activity (GO:0003925)GDP binding (GO:0019003)GTP binding (GO:0005525)GTP binding (GO:0005525)GTP binding (GO:0005525)GTP binding (GO:0005525)GTPase activity (GO:0003924)GTPase activity (GO:0003924)GTPase activity (GO:0003924)Golgi apparatus (GO:0005794)Golgi apparatus (GO:0005794)Golgi apparatus (GO:0005794)Golgi stack (GO:0005795)anterograde axonal protein transport (GO:0099641)anterograde axonal protein transport (GO:0099641)apical plasma membrane (GO:0016324)apical plasma membrane (GO:0016324)axon cytoplasm (GO:1904115)exocytic vesicle (GO:0070382)exocytosis (GO:0006887)extracellular exosome (GO:0070062)late endosome (GO:0005770)late endosome (GO:0005770)melanosome (GO:0042470)melanosome (GO:0042470)melanosome (GO:0042470)membrane (GO:0016020)multivesicular body membrane (GO:0032585)multivesicular body membrane (GO:0032585)multivesicular body sorting pathway (GO:0071985)multivesicular body sorting pathway (GO:0071985)myosin V binding (GO:0031489)plasma membrane (GO:0005886)platelet dense granule membrane (GO:0031088)positive regulation of exocytosis (GO:0045921)positive regulation of exocytosis (GO:0045921)positive regulation of exocytosis (GO:0045921)protein binding (GO:0005515)protein domain specific binding (GO:0019904)regulation of exocytosis (GO:0017157)secretory granule (GO:0030141)synaptic vesicle endocytosis (GO:0048488)synaptic vesicle membrane (GO:0030672)trans-Golgi network transport vesicle (GO:0030140)zymogen granule membrane (GO:0042589)
Expression (TPM)
RAB27B — as a Regulated Gene

TFs regulating RAB27B 0 TFs

Transcription factors with Perturb-seq knockdown data for RAB27B. The Binding column indicates whether any binding evidence exists for this TF–gene pair (ChIP-seq or motif footprint peaks). The Mean coef is the average Perturb-seq regression coefficient across active gRNAs (positive = RAB27B upregulated upon KD; negative = downregulated). The Outlier column indicates whether this gene is in the top or bottom 5% of all TF knockdown effects.

Data: Effect:
TF Mean coef Binding Outlier TF→Gene link

Elements linked to RAB27B

Open chromatin peaks (ATAC-seq) in the genomic neighbourhood of RAB27B, linked by TSS proximity or chromatin conformation (Multiome / HiCAR). Each element overlaps at least one TF ChIP-seq binding site — the TFs column shows how many distinct TFs bind that element.

Accessibility Element Dist. to TSS Link type TFs
chr18:54,828,068–54,829,198 at TSS At TSS 525

Genome Browser

Genomic view of the RAB27B locus showing ATAC-seq accessibility and RNA-seq expression across the ESC → DE time course, together with TF binding peaks and element-to-TSS loop connections.

chr18:54,818,068 – 54,839,198
Proximal 1 kb Distal 10 kb Multiome HiCAR ATAC-seq RNA-seq