RAB6C

gene
On this page

Also known as WTH3

Summary

RAB6C (RAB6C, member RAS oncogene family, HGNC:16525) is a protein-coding gene on chromosome 2q21.1, encoding Ras-related protein Rab-6C (Q9H0N0). The small GTPases Rab are key regulators of intracellular membrane trafficking, from the formation of transport vesicles to their fusion with membranes.

Enables GTPase activity. Involved in mitotic cell cycle; regulation of centrosome duplication; and response to xenobiotic stimulus. Located in Golgi apparatus; microtubule organizing center; and nucleoplasm.

Source: NCBI Gene 84084 — RefSeq curated summary.

At a glance

  • GWAS associations: 3
  • Clinical variants (ClinVar): 45 total
  • MANE Select transcript: NM_032144

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:16525
Approved symbolRAB6C
NameRAB6C, member RAS oncogene family
Location2q21.1
Locus typegene with protein product
StatusApproved
AliasesWTH3
Ensembl geneENSG00000222014
Ensembl biotypeprotein_coding
OMIM612909
Entrez84084

Gene structure

Transcript identifiers

Ensembl transcripts: 1 — 1 protein_coding

ENST00000410061

RefSeq mRNA: 1 — MANE Select: NM_032144 NM_032144

CCDS: CCDS46408

Canonical transcript exons

ENST00000410061 — 1 exons

ExonStartEnd
ENSE00001588213129979666129982738

Expression profiles

Bgee: expression breadth broad, 79 present calls, max score 74.85.

FANTOM5 (CAGE): breadth ubiquitous, TPM avg 5.4115 / max 68.4150, expressed in 1725 samples.

FANTOM5 promoters (2 alternative TSS)

Promoter IDTPM avgSamples expressed
224935.38731725
224940.02428

Top tissues by expression

114 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
male germ line stem cell (sensu Vertebrata) in testisCL:0000089 ∩ UBERON:000047374.85silver quality
endometriumUBERON:000129570.17gold quality
primary visual cortexUBERON:000243665.45gold quality
superior frontal gyrusUBERON:000266164.44gold quality
prefrontal cortexUBERON:000045164.40gold quality
Ammon’s hornUBERON:000195462.37gold quality
Brodmann (1909) area 9UBERON:001354061.69gold quality
corpus callosumUBERON:000233661.55gold quality
frontal cortexUBERON:000187061.41gold quality
putamenUBERON:000187459.91gold quality
cerebral cortexUBERON:000095659.89gold quality
dorsolateral prefrontal cortexUBERON:000983458.89gold quality
primordial germ cell in gonadCL:0000670 ∩ UBERON:000099158.88gold quality
C1 segment of cervical spinal cordUBERON:000646958.70gold quality
substantia nigraUBERON:000203858.49gold quality
temporal lobeUBERON:000187158.37gold quality
amygdalaUBERON:000187658.28gold quality
caudate nucleusUBERON:000187357.65gold quality
nucleus accumbensUBERON:000188257.20gold quality
hypothalamusUBERON:000189857.01gold quality
placentaUBERON:000198756.89gold quality
cortical plateUBERON:000534356.60gold quality
right frontal lobeUBERON:000281056.44gold quality
anterior cingulate cortexUBERON:000983555.68gold quality
endocervixUBERON:000045855.52gold quality
brainUBERON:000095554.46gold quality
lower esophagusUBERON:001347353.85gold quality
lower esophagus muscularis layerUBERON:003583353.85gold quality
uterine cervixUBERON:000000252.23gold quality
popliteal arteryUBERON:000225051.94gold quality

Single-cell (SCXA)

Detected in 1 experiment(s), a significant marker in 1.

ExperimentMarker?Max mean expression
E-ANND-3yes8.11

Regulation

Is transcription factor: no

Upstream regulators (CollecTRI, top): TP53

miRNA regulators (miRDB)

90 targeting RAB6C, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-5692A100.0074.406850
HSA-MIR-4768-5P100.0069.492861
HSA-MIR-6833-3P100.0070.633197
HSA-MIR-318599.9968.121959
HSA-MIR-520D-5P99.9873.344883
HSA-MIR-524-5P99.9873.434882
HSA-MIR-806899.9873.852376
HSA-MIR-365899.9673.874379
HSA-MIR-391099.9571.132227
HSA-MIR-6835-3P99.9370.492904
HSA-MIR-314399.9371.963104
HSA-MIR-218-5P99.9372.222103
HSA-MIR-311999.9271.342390
HSA-MIR-6499-3P99.9066.381212
HSA-MIR-368699.9070.532432
HSA-MIR-548E-5P99.8972.734486
HSA-MIR-5003-3P99.8569.292517
HSA-MIR-76599.8468.242442
HSA-MIR-63699.8069.581500
HSA-MIR-205299.7969.372031
HSA-MIR-4713-5P99.7867.801794
HSA-MIR-200A-5P99.7669.10949
HSA-MIR-200B-5P99.7669.05948
HSA-MIR-7856-5P99.7569.992901
HSA-MIR-11181-3P99.7566.382205
HSA-MIR-199A-3P99.7570.48929
HSA-MIR-199B-3P99.7570.48929
HSA-MIR-3129-5P99.7570.46914
HSA-MIR-120099.7170.421838
HSA-MIR-378A-5P99.6566.331311

Literature-anchored findings (GeneRIF, showing 7)

  • The behavior of WTH3 in primary drug-resistant breast cancer epithelial cells was similar to that in a model system where epigenetic regulation of the WTH3 gene was linked to the MDR phenotype. (PMID:16267028)
  • The negative role played by the WTH3 gene in MDR development is through its proapoptotic potential that is regulated by multiple mechanisms at the transcription level, and one of these mechanisms is linked to the p53 gene. (PMID:17426708)
  • plays role in multi-drug resistance development;DNA methylation is one of its transcription regulatory mechanisms (PMID:18992151)
  • RAB6C is a rare example of a recently emerged retrogene that has acquired the status of a new gene, encoding a functional protein with altered characteristics compared to Rab6A’. (PMID:20064528)
  • Rab6A’(Q72L) was then purified to homogeneity and crystallized at 293 K. X-ray diffraction data were collected to a resolution of 1.9 A from a crystal belonging to space group P22(1)2(1) with unit-cell parameters a = 36.84, b = 96.78, c = 109.99 A (PMID:22949199)
  • This is the first study to report hypermethylation of LRPPRC, RAB6C, and ZNF471 in squamous cell carcinoma of the tongue (PMID:28255813)
  • Rab6c is a new target of miR218 that can promote the progression of bladder cancer. (PMID:34515321)

Cross-species orthologs

0 orthologs

Paralogs (68): RAB27B (ENSG00000041353), RAB27A (ENSG00000069974), RAB7A (ENSG00000075785), RABL2B (ENSG00000079974), RAB21 (ENSG00000080371), RAB10 (ENSG00000084733), RAB18 (ENSG00000099246), RAB36 (ENSG00000100228), IFT27 (ENSG00000100360), RAB40AL (ENSG00000102128), RAB11A (ENSG00000103769), RAB2A (ENSG00000104388), RAB3D (ENSG00000105514), RAB3A (ENSG00000105649), RAB5C (ENSG00000108774), RAB34 (ENSG00000109113), RAB5B (ENSG00000111540), RAB35 (ENSG00000111737), RAB23 (ENSG00000112210), DNAJC27 (ENSG00000115137), RAB29 (ENSG00000117280), RAB32 (ENSG00000118508), RAB14 (ENSG00000119396), RAB9B (ENSG00000123570), RAB9A (ENSG00000123595), RAB38 (ENSG00000123892), RAB22A (ENSG00000124209), RAB17 (ENSG00000124839), RAB2B (ENSG00000129472), RAB25 (ENSG00000132698), RAB33A (ENSG00000134594), RAB30 (ENSG00000137502), RAB1A (ENSG00000138069), RAB20 (ENSG00000139832), RAB15 (ENSG00000139998), RAB40B (ENSG00000141542), RAB13 (ENSG00000143545), RABL2A (ENSG00000144134), RAB5A (ENSG00000144566), RAB19 (ENSG00000146955)

Protein

Protein identifiers

Ras-related protein Rab-6CQ9H0N0 (reviewed: Q9H0N0)

Alternative names: Rab6-like protein WTH3

All UniProt accessions (1): Q9H0N0

UniProt curated annotations — full annotation on UniProt →

Function. The small GTPases Rab are key regulators of intracellular membrane trafficking, from the formation of transport vesicles to their fusion with membranes. Rabs cycle between an inactive GDP-bound form and an active GTP-bound form that is able to recruit to membranes different sets of downstream effectors directly responsible for vesicle formation, movement, tethering and fusion. RAB6C may be involved in the regulation of centrosome duplication and cell cycle progression.

Subcellular location. Nucleus. Cytoplasm. Cytoskeleton. Microtubule organizing center. Centrosome.

Tissue specificity. Highest levels are found in fetal and adult brain, prostate, testis and spinal cord. Undetectable expression in adrenal gland, skeletal muscle, bone marrow, fetal, and adult liver, heart, salivary gland, and trachea. Detected in the HEK293, HEK293T, LNCaP, MCF-7, T-47D and EVSA-T cell lines (at protein level).

Domain organisation. Switch 1, switch 2 and the interswitch regions are characteristic of Rab GTPases and mediate the interactions with Rab downstream effectors. The switch regions undergo conformational changes upon nucleotide binding which drives interaction with specific sets of effector proteins, with most effectors only binding to GTP-bound Rab.

Miscellaneous. Primate-specific retrogene derived from isoform 2 of RAB6A transcript. Previously reported to exhibit GTP-binding affinity comparable to that of RAB6A. In contrast concludes that RAB6C is an inefficient GTP-binding.

Similarity. Belongs to the small GTPase superfamily. Rab family.

RefSeq proteins (1): NP_115520* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR001806Small_GTPaseFamily
IPR005225Small_GTP-bdDomain
IPR027417P-loop_NTPaseHomologous_superfamily
IPR050227RabFamily

Pfam: PF00071

Catalyzed reactions (Rhea), 1 shown:

  • GTP + H2O = GDP + phosphate + H(+) (RHEA:19669)

UniProt features (25 total): binding site 17, short sequence motif 2, mutagenesis site 2, chain 1, region of interest 1, modified residue 1, sequence variant 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q9H0N0-F173.090.43

Functional residue map

Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.

Ligand- & substrate-binding residues (17): 28; 39; 40; 42; 68; 71; 126; 127; 129; 157; 158; 23

Post-translational modifications (1): 82

Mutagenesis-validated functional residues (2):

PositionPhenotype
25no gtp binding. no gtp binding; when associated with t-45.
45no gtp binding; when associated with g-25.

Function

Pathways and Gene Ontology

Reactome pathways

0 pathways

MSigDB gene sets: 87 (showing top): BENPORATH_ES_WITH_H3K27ME3, GOBP_REGULATION_OF_MICROTUBULE_BASED_PROCESS, GOBP_INTRACELLULAR_PROTEIN_TRANSPORT, GOBP_VESICLE_MEDIATED_TRANSPORT, GOCC_MICROTUBULE_ORGANIZING_CENTER, GOBP_INTRA_GOLGI_VESICLE_MEDIATED_TRANSPORT, GOBP_REGULATION_OF_CELL_CYCLE, GOCC_CENTROSOME, GOBP_REGULATION_OF_CENTROSOME_CYCLE, GGCAGTG_MIR3243P, GOBP_MITOTIC_CELL_CYCLE, LYF1_01, GOBP_PROTEIN_LOCALIZATION_TO_GOLGI_APPARATUS, AACTTT_UNKNOWN, GOBP_PROTEIN_LOCALIZATION_TO_ORGANELLE

GO Biological Process (9): mitotic cell cycle (GO:0000278), intracellular protein transport (GO:0006886), retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum (GO:0006890), intra-Golgi vesicle-mediated transport (GO:0006891), small GTPase-mediated signal transduction (GO:0007264), response to xenobiotic stimulus (GO:0009410), regulation of centrosome duplication (GO:0010824), retrograde transport, endosome to Golgi (GO:0042147), protein localization to Golgi membrane (GO:1903292)

GO Molecular Function (7): GTPase activity (GO:0003924), G protein activity (GO:0003925), GTP binding (GO:0005525), metal ion binding (GO:0046872), nucleotide binding (GO:0000166), protein binding (GO:0005515), hydrolase activity (GO:0016787)

GO Cellular Component (9): nucleoplasm (GO:0005654), Golgi apparatus (GO:0005794), centrosome (GO:0005813), cytosol (GO:0005829), endomembrane system (GO:0012505), ciliary basal body (GO:0036064), nucleus (GO:0005634), cytoplasm (GO:0005737), cytoskeleton (GO:0005856)

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
cellular anatomical structure4
Golgi vesicle transport2
cytoplasm2
intracellular membrane-bounded organelle2
microtubule organizing center2
cell cycle1
mitotic nuclear division1
intracellular protein localization1
protein transport1
intracellular transport1
intracellular signaling cassette1
response to chemical1
regulation of centrosome cycle1
centrosome duplication1
intercellular transport1
endosomal transport1
cytosolic transport1
protein localization to Golgi apparatus1
protein localization to membrane1
ribonucleoside triphosphate phosphatase activity1
GTPase activity1
molecular function regulator activity1
guanyl ribonucleotide binding1
purine ribonucleoside triphosphate binding1
cation binding1
nucleoside phosphate binding1
heterocyclic compound binding1
binding1
catalytic activity1
nuclear lumen1
endomembrane system1
centriole1
vacuole1
plasma membrane1
cilium1
intracellular anatomical structure1
intracellular membraneless organelle1

Protein interactions and networks

STRING

820 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
RAB6CVPS53Q5VIR6779
RAB6CDAXXQ9UER7526
RAB6CH3-3AP06351431
RAB6CH3C1P02295418
RAB6CH3C14Q71DI3370
RAB6CH3-5Q6NXT2367
RAB6CH3-4Q16695358
RAB6CH3-7Q5TEC6358
RAB6CH2AC20Q16777317
RAB6CH2AC19P20670316
RAB6CRINT1Q6NUQ1306
RAB6CZNF471Q9BX82290
RAB6CRIC1Q4ADV7287
RAB6CTBC1D3BA6NDS4278
RAB6CGDI1P31150277

IntAct

23 interactions, top by confidence:

ABTypeScore
GDI1RAB4Apsi-mi:“MI:0914”(association)0.820
RAB8AWDR91psi-mi:“MI:0914”(association)0.600
RAB6CAPBB2psi-mi:“MI:0915”(physical association)0.560
RAB6Cpsi-mi:“MI:0915”(physical association)0.560
RAB6CPMP22psi-mi:“MI:0915”(physical association)0.560
RAB12CHMpsi-mi:“MI:0914”(association)0.530
RAB6BSBF1psi-mi:“MI:0914”(association)0.530
RAB6BRAB6Apsi-mi:“MI:0914”(association)0.530
Bicdl2RAB6Cpsi-mi:“MI:0915”(physical association)0.400
RAB10RAB19psi-mi:“MI:0914”(association)0.350
RAB6BSBF1psi-mi:“MI:0914”(association)0.350
RIMS1KIF2Apsi-mi:“MI:0914”(association)0.350
RAB6CCCT6Apsi-mi:“MI:0914”(association)0.350
RAB6CHLA-DRB1psi-mi:“MI:0914”(association)0.350
RAB6CCAPSpsi-mi:“MI:0914”(association)0.350
RAB6CaraBpsi-mi:“MI:0915”(physical association)0.000

BioGRID (13): RAB6C (Affinity Capture-MS), CCT2 (Affinity Capture-MS), CCT6A (Affinity Capture-MS), RAB6C (Affinity Capture-MS), CCT6B (Affinity Capture-MS), RAB6C (Affinity Capture-MS), HSPA2 (Affinity Capture-MS), RAB6C (Proximity Label-MS), RAB6A (Cross-Linking-MS (XL-MS)), RAB6C (Affinity Capture-MS), RAB6C (Co-fractionation), RAB6C (Co-fractionation), Ccdc64b (Affinity Capture-Western)

ESM2 similar proteins: A2YEQ6, O35963, O74536, O95661, O95755, P25378, P35283, P35284, P51156, P52198, P97950, Q00246, Q02723, Q06AU4, Q08AT1, Q08E00, Q09178, Q14088, Q20365, Q29RR0, Q3SXC5, Q3UHC2, Q504M8, Q53S08, Q5H913, Q5JT25, Q5R615, Q5U1Y1, Q5ZHV1, Q62120, Q62689, Q64008, Q69XM7, Q6IQ22, Q75R65, Q7SZ59, Q7TN89, Q7Z444, Q8C0V7, Q8CAM5

Diamond homologs: A4FV54, A6QR46, M0RC99, O18333, O18334, O80501, P05712, P11023, P16976, P17608, P18066, P20336, P20339, P20340, P22127, P22128, P24409, P25228, P29687, P31582, P31583, P34213, P35276, P35278, P35279, P35280, P35292, P36017, P36586, P36863, P49103, P49104, P51147, P51148, P53994, P55258, P61006, P61007, P61019, P61020

SIGNOR signaling

5 interactions.

AEffectBMechanism
RAB6C“down-regulates activity”VPS13Bbinding
RAB6C“up-regulates activity”VPS13Bbinding
RAB6Cup-regulatesNeurite_outgrowth
KIF1C“up-regulates quantity”RAB6Crelocalization
RAB6Cup-regulatesSynaptic_vesicle_exocytosis

Enriched among interaction partners

Reactome pathways and GO biological processes over-represented among this gene’s 20 IntAct physical interaction partners (hypergeometric vs the genome-wide background, BH-FDR, gene-set size 15–500, ranked by fold). A functional readout of the neighbourhood — distinct from this gene’s own memberships above, and biased toward well-studied / hub proteins, so read it as themes rather than proof.

Reactome pathways:

PathwayPartnersFoldFDR
RAB geranylgeranylation886.5×8e-13
RAB GEFs exchange GTP for GDP on RABs862.1×6e-12

GO biological processes:

GO termPartnersFoldFDR
intracellular protein transport518.0×2e-04

Disease & clinical

Clinical variants and AI predictions

ClinVar

45 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic0
Likely pathogenic0
Uncertain significance44
Likely benign1
Benign0

Top pathogenic / likely-pathogenic (0)

SpliceAI

213 predictions. Top by Δscore:

VariantEffectΔscore
2:129980726:G:GTdonor_gain0.9200
2:129981730:A:AGacceptor_gain0.8500
2:129981731:G:GGacceptor_gain0.8500
2:129980212:TTCAG:Tdonor_loss0.8300
2:129980213:TCAG:Tdonor_loss0.8300
2:129980214:CAGG:Cdonor_loss0.8300
2:129980215:AG:Adonor_loss0.8300
2:129980216:GGT:Gdonor_loss0.8300
2:129980217:G:Cdonor_loss0.8300
2:129980218:T:Adonor_loss0.8300
2:129981731:GAA:Gacceptor_gain0.8200
2:129980718:C:Adonor_gain0.7300
2:129980715:A:AGdonor_gain0.7000
2:129980716:G:GGdonor_gain0.7000
2:129980730:T:TAdonor_gain0.7000
2:129982318:TACA:Tacceptor_gain0.6800
2:129979780:GTCTC:Gdonor_gain0.6700
2:129979781:TCTCT:Tdonor_gain0.6700
2:129980287:G:Cacceptor_gain0.6300
2:129982352:G:GCacceptor_gain0.5900
2:129979794:TGCGG:Tdonor_gain0.5800
2:129979824:G:Tdonor_gain0.5700
2:129980151:G:GTdonor_gain0.5600
2:129980219:A:Cdonor_loss0.5600
2:129981731:GA:Gacceptor_gain0.5500
2:129982314:TAAA:Tacceptor_gain0.5500
2:129980462:G:GTdonor_gain0.5300
2:129980807:A:Gdonor_gain0.5300
2:129982324:G:GTacceptor_gain0.5000
2:129982325:T:TTacceptor_gain0.5000

AlphaMissense

1655 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
2:129980569:T:CF152L0.883
2:129980571:T:AF152L0.883
2:129980571:T:GF152L0.883
2:129980416:T:CF101L0.871
2:129980418:C:AF101L0.871
2:129980418:C:GF101L0.871
2:129980155:T:CF14L0.847
2:129980157:C:AF14L0.847
2:129980157:C:GF14L0.847
2:129980212:T:CF33L0.808
2:129980214:C:AF33L0.808
2:129980214:C:GF33L0.808
2:129980614:T:CF167L0.783
2:129980616:T:AF167L0.783
2:129980616:T:GF167L0.783
2:129980167:T:CF18L0.760
2:129980169:C:AF18L0.760
2:129980169:C:GF18L0.760
2:129980548:G:CA145P0.736
2:129980263:T:CF50L0.724
2:129980265:T:AF50L0.724
2:129980265:T:GF50L0.724
2:129980227:T:CF38L0.719
2:129980229:T:AF38L0.719
2:129980229:T:GF38L0.719
2:129980436:G:CW107C0.701
2:129980436:G:TW107C0.701
2:129980434:T:AW107R0.686
2:129980434:T:CW107R0.686
2:129980387:T:AV91E0.673

dbSNP variants (sampled 300 via entrez): RS1000020366 (2:129978515 A>G), RS1002242624 (2:129978964 G>C,T), RS1002708225 (2:129979313 G>A,T), RS1002994759 (2:129980616 T>C), RS1004141129 (2:129981336 A>G), RS1007486446 (2:129978099 G>A), RS1009583368 (2:129978873 C>G,T), RS1009614535 (2:129978576 G>A), RS1011632452 (2:129981885 G>A,C), RS1012961508 (2:129982943 G>T), RS1013155561 (2:129982568 A>G), RS1016185077 (2:129982603 T>C), RS1017442780 (2:129977856 C>A,T), RS10177167 (2:129979796 C>A,T), RS1017829232 (2:129978124 A>C)

Disease associations

OMIM: gene MIM:612909 | disease phenotypes:

GenCC curated gene-disease

Mondo (0):

Orphanet (0):

HPO phenotypes

0 total (0 of 0 shown, HPO-id order):

GWAS associations

3 associations (top):

StudyTraitp-value
GCST002136_7Periodontitis (PAL4Q3)8.000000e-06
GCST002136_9Periodontitis (PAL4Q3)8.000000e-07
GCST007325_50General risk tolerance (MTAG)5.000000e-08

EFO canonical traits (1, from GWAS)

EFO IDTrait name
EFO:0008579risk-taking behaviour

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

PharmGKB: 1 entry (VIP=true, CPIC=false)

CTD chemical–gene interactions

15 total (human), top 15 by PubMed support.

ChemicalActions (top 5)PubMed papers
sodium arseniteincreases abundance, increases expression1
cobaltous chlorideincreases expression1
pyrimidifendecreases expression1
pyrachlostrobindecreases expression1
Resveratrolaffects cotreatment, decreases expression1
Decitabineaffects cotreatment, increases expression, affects binding, increases reaction1
Arsenicincreases abundance, increases expression1
Benzo(a)pyreneincreases methylation1
Doxorubicinaffects expression, affects response to substance, increases response to substance1
Methotrexatedecreases expression1
Plant Extractsaffects cotreatment, decreases expression1
Rotenonedecreases expression1
Tobacco Smoke Pollutionaffects expression1
Aflatoxin B1decreases methylation1
Okadaic Aciddecreases expression1

Clinical trials (associated diseases)

0 trials via MONDO — disease-level, not drug-specific.

  • Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): periodontitis