RASSF1 (Ras association (RalGDS/AF-6) domain family member)

2001-12-01   Debora Angeloni , Michael I. Lerman 

Laboratory of Immunobiology, National Cancer Institute, Frederick Cancer Research Facility Bldg. 560 Rm. 12 26 Frederick, MD 21702, USA

Identity

HGNC
LOCATION
3p21.31
IMAGE
Atlas Image
LEGEND
Probe(s) - Courtesy Mariano Rocchi, Resources for Molecular Cytogenetics
LOCUSID
ALIAS
123F2,NORE2A,RASSF1A,RDA32,REH3P21
FUSION GENES

DNA/RNA

Atlas Image
Grey: exon 1a, green: exon 1b; blue: exon 2ab; yellow : exon 2g; brown: exons 3,4, 5, 6. Arrows: transcription start sites. CpG: location of CpG islands. RASSF1A and RASSF1B start with exon 1a and 1b respectively. The second exon (2ab) is common to both forms. Exon 2g is the first exon of RASSF1C and is present in this transcript only.

Description

the genomic size of the gene is about 7.6 kb.

Transcription

At least three alternative transcripts were identified (A, B and C) that originate from alternative splicing and promoter usage. Exons 3 to 6 are common to all forms. Transcript A has two 5 exons (designated 1a and 2ab), this cDNA is 1,873 bp (ORF: 340 amino acids). RASSF1B first exon is designated 1b and is different from RASSF1A. Exon two is 2ab as in transcript A. cDNA size: 1,664 bp. Transcript RASSF1C first exon is designated 2g, cDNA size 1700 bp (ORF 270 amino acids).

Pseudogene

no known pseudogenes.

Proteins

Atlas Image
Schematic representation of RASSF1 protein variants, as deduced from the transcripts.

Description

The carboxy terminus of RASSF1A shows about 55% identity to the mouse protein Nore1 and the rat protein Maxp1, both are Ras effector proteins (Nore1 was shown to interact in vivo with Ras upon receptor activation in a GTP-dependent manner). RASSF1A N terminus has high homology with a domain known as protein kinase C conserved region 1 domain (a cysteine-rich diacylglycerol/phorbol ester binding domain). RASSF1B most likely is constituted only of the Ras association domain.

Expression

RASSF1A and RASSF1C are expressed in heart, brain, placenta, lung, liver, skeletal muscle, kidney, pancreas, spleen, thymus, prostate, testis, small intestine, colon, peripheral blood leukocytes. RASSF1B is expressed predominantly in cells of hematopoietic origin.

Localisation

not determined.

Function

RASSF1 binds Ras in a GTP-dependent manner and may serve as the effector that mediates Ras apoptotic effects. Alternatively, it may sequester RAS proteins thereby regulating the availability of these proteins for signaling.

Mutations

Note

single nucleotide polymorphism (SNP) in exon 1a: AAG (Lys21)/CAG (Gln21).

Somatic

Mutations were rarely found. In non small cell lung cancer four were found: GAC (Asp129) to GAG (Glu129); ATT (Ile135) to ACT (Thr135); CGG (Arg257) to CAG (Gln257); GCC (Ala336) to ACC (Thr336).

Implicated in

Entity name
clear cell renal carcinoma and papillary renal carcinoma; lung cancer; ovarian cancer; prostate cancer, gastric adenocarcinoma; bladder carcinoma; nasopharingeal carcinoma; breast cancer.
Note
The mechanism of inactivation of this tumor suppressor consists in promoter hypermethylation. The gene promoter was found hypermetylated in 90 % of primary kidney tumors and 40 % of lung tumors. Hypermethylation and loss of transcription were causally related. Hypermethylation occurs in variable percentage in other tumors and indicate a role for this gene in malignant progression (62 % of bladder carcinoma; 49 % of breast tumors; 40 % of ovarian tumors; 12 % of colon cancer).

Bibliography

Pubmed IDLast YearTitleAuthors
113138942001Methylation associated inactivation of RASSF1A from region 3p21.3 in lung, breast and ovarian tumours.Agathanggelou A et al
113332912001Epigenetic inactivation of RASSF1A in lung and breast cancers and malignant phenotype suppression.Burbee DG et al
115857302001Frequent epigenetic inactivation of RASSF1A by aberrant promoter hypermethylation in human gastric adenocarcinoma.Byun DS et al
108888812000Epigenetic inactivation of a RAS association domain family protein from the lung tumour suppressor locus 3p21.3.Dammann R et al
114297032001The CpG island of the novel tumor suppressor gene RASSF1A is intensely methylated in primary small cell lung carcinomas.Dammann R et al
113064942001Hypermethylation of the cpG island of Ras association domain family 1A (RASSF1A), a putative tumor suppressor gene from the 3p21.3 locus, occurs in a large percentage of human breast cancers.Dammann R et al
113909842001The candidate tumor suppressor gene, RASSF1A, from human chromosome 3p21.3 is involved in kidney tumorigenesis.Dreijerink K et al
115595362001Frequent epigenetic inactivation of RASSF1A in human bladder carcinoma.Lee MG et al
110855362000The 630-kb lung cancer homozygous deletion region on human chromosome 3p21.3: identification and evaluation of the resident candidate tumor suppressor genes. The International Lung Cancer Chromosome 3p21.3 Tumor Suppressor Gene Consortium.Lerman MI et al
113587992001High frequency of promoter hypermethylation of RASSF1A in nasopharyngeal carcinoma.Lo KW et al
115857662001Epigenetic inactivation of the RASSF1A 3p21.3 tumor suppressor gene in both clear cell and papillary renal cell carcinoma.Morrissey C et al
109984132000Ras uses the novel tumor suppressor RASSF1 as an effector to mediate apoptosis.Vos MD et al
116685002001Hypermethylation of the CpG island of the RASSF1A gene in ovarian and renal cell carcinomas.Yoon JH et al

Other Information

Locus ID:

NCBI: 11186
MIM: 605082
HGNC: 9882
Ensembl: ENSG00000068028

Variants:

dbSNP: 11186
ClinVar: 11186
TCGA: ENSG00000068028
COSMIC: RASSF1

RNA/Proteins

Gene IDTranscript IDUniprot
ENSG00000068028ENST00000327761Q9NS23
ENSG00000068028ENST00000357043Q9NS23
ENSG00000068028ENST00000359365Q9NS23
ENSG00000068028ENST00000395117Q9NS23
ENSG00000068028ENST00000395126Q9NS23
ENSG00000068028ENST00000482447Q9NS23
ENSG00000068028ENST00000616212Q9NS23

Expression (GTEx)

0
10
20
30
40
50
60
70
80
90
100

Pathways

PathwaySourceExternal ID
Bladder cancerKEGGko05219
Non-small cell lung cancerKEGGko05223
Pathways in cancerKEGGhsa05200
Bladder cancerKEGGhsa05219
Non-small cell lung cancerKEGGhsa05223
Hippo signaling pathwayKEGGhsa04390
Hippo signaling pathwayKEGGko04390
MicroRNAs in cancerKEGGhsa05206
MicroRNAs in cancerKEGGko05206
Ras signaling pathwayKEGGhsa04014
Hippo signaling pathway -multiple speciesKEGGko04392
Hippo signaling pathway -multiple speciesKEGGhsa04392

Protein levels (Protein atlas)

Not detected
Low
Medium
High

PharmGKB

Entity IDNameTypeEvidenceAssociationPKPDPMIDs
PA10040cetuximabChemicalClinicalAnnotation, VariantAnnotationambiguousPD
PA446108Colorectal NeoplasmsDiseaseClinicalAnnotation, VariantAnnotationambiguousPD

References

Pubmed IDYearTitleCitations
183376022008DNA methylation markers and early recurrence in stage I lung cancer.188
178896692007RASSF1A elicits apoptosis through an MST2 pathway directing proapoptotic transcription by the p73 tumor suppressor protein.152
158673372005Role of the Ras-association domain family 1 tumor suppressor gene in human cancers.130
120240412002The RASSF1A tumor suppressor blocks cell cycle progression and inhibits cyclin D1 accumulation.98
147432182004The tumour suppressor RASSF1A regulates mitosis by inhibiting the APC-Cdc20 complex.89
173795202007RASSF1A is part of a complex similar to the Drosophila Hippo/Salvador/Lats tumor-suppressor network.83
146010572003DNA methylation of RASSF1A, HIN-1, RAR-beta, Cyclin D2 and Twist in in situ and invasive lobular breast carcinoma.77
190622802008NDR kinase is activated by RASSF1A/MST1 in response to Fas receptor stimulation and promotes apoptosis.73
183492822008DNA methylation in tumor and matched normal tissues from non-small cell lung cancer patients.71
157360672005The tumor suppressor RASSF1A in human carcinogenesis: an update.70

Citation

Debora Angeloni ; Michael I. Lerman

RASSF1 (Ras association (RalGDS/AF-6) domain family member)

Atlas Genet Cytogenet Oncol Haematol. 2001-12-01

Online version: http://atlasgeneticsoncology.org/gene/377/rassf1