ID:RB6I2_HUMAN DESCRIPTION: RecName: Full=ELKS/Rab6-interacting/CAST family member 1; Short=ERC-1; AltName: Full=Rab6-interacting protein 2; FUNCTION: Regulatory subunit of the IKK complex. Probably recruits IkappaBalpha/NFKBIA to the complex. May be involved in the organization of the cytomatrix at the nerve terminals active zone (CAZ) which regulates neurotransmitter release. May be involved in vesicle trafficking at the CAZ. May be involved in Rab-6 regulated endosomes to Golgi transport. SUBUNIT: Part of a complex with CHUK, IKBKB and IKBKG. Interacts with CHUK, IKBKB and IKBKG. The interaction with IKBKG is independent of CHUK and IKBKB. Interacts with NFKBIA. Isoform 4 interacts with PPFIA1, and through its C-terminus with the PDZ domains of RIMS1 and RIMS2. Interacts with ERC2/CAST1. Interacts with the GTB-bound forms of RAB6A isoform 1 and isoform 2 and with RAB6B. The interaction was strongest with RAB6B, followed by RAB6A isoform 2 and weakest with RAB6A isoform 1 (By similarity). SUBCELLULAR LOCATION: Cytoplasm (By similarity). Membrane; Peripheral membrane protein (By similarity). Golgi apparatus membrane; Peripheral membrane protein (By similarity). Note=In neurons, localized closed to presynaptic membrane. Recruited on Golgi membranes by RAB6A in a GTP-dependent manner (By similarity). TISSUE SPECIFICITY: Widely expressed. Isoform 2 and isoform 4 are abundantly expressed in brain. Isoform 1 and isoform 3 are predominantly expressed in testis and thyroid, and isoform 1 predominates in other tissues tested. DISEASE: Defects in ERC1 are a cause of thyroid papillary carcinoma (TPC) [MIM:188550]. TPC is a common tumor of the thyroid that typically arises as an irregular, solid or cystic mass from otherwise normal thyroid tissue. Papillary carcinomas are malignant neoplasm characterized by the formation of numerous, irregular, finger-like projections of fibrous stroma that is covered with a surface layer of neoplastic epithelial cells. Note=A chromosomal aberration involving ERC1/RAB6IP2 is found in cause of thyroid papillary carcinomas. Translocation t(10;12)(q11;p13) involving RET. In vitro, isoform 1, isoform 3 and isoform 5 participating in a ERC1-RET fusion protein activate tyrosine-protein kinase activity. SIMILARITY: Contains 1 FIP-RBD domain. SEQUENCE CAUTION: Sequence=AAH68006.1; Type=Miscellaneous discrepancy; Note=Contaminating sequence. Potential poly-A sequence; Sequence=BAA83033.2; Type=Erroneous initiation; Note=Translation N-terminally shortened; Sequence=BAA90975.1; Type=Erroneous initiation; Note=Translation N-terminally extended; WEB RESOURCE: Name=Atlas of Genetics and Cytogenetics in Oncology and Haematology; URL="http://atlasgeneticsoncology.org/Genes/ELKSID503.html";
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
ModBase Predicted Comparative 3D Structure on Q8IUD2
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Orthologous Genes in Other Species
Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
Biological Process: GO:0006355 regulation of transcription, DNA-templated GO:0007252 I-kappaB phosphorylation GO:0007275 multicellular organism development GO:0015031 protein transport GO:0042147 retrograde transport, endosome to Golgi GO:0043066 negative regulation of apoptotic process GO:0051092 positive regulation of NF-kappaB transcription factor activity
US Server
Sequence and Links to Tools and Databases 
Common Gene Haplotype Alleles 
