Mouse anti-Human SSA1 Polyclonal Antibody | anti-TRIM21 antibody

SSA1 (Tripartite Motif-containing 21, 52kD Ribonucleoprotein Autoantigen Ro/SS-A, 52kD Ro Protein, RING Finger Protein 81, RNF81, Ro(SS-A), RO52, Sjoegren Syndrome Type A Antigen, SSA, SS-A, TRIM21, Tripartite Motif-containing Protein 21)

Cat. Num. AAA641293

• Gene Names: TRIM21; SSA; RO52; SSA1; RNF81
• Reactivity: Human
• Applications: Western Blot, Immunofluorescence
• Purity: Affinity Purified; Purified by Protein A affinity chromatography.
• Synonyms: SSA1; Polyclonal Antibody; SSA1 (Tripartite Motif-containing 21; 52kD Ribonucleoprotein Autoantigen Ro/SS-A; 52kD Ro Protein; RING Finger Protein 81; RNF81; Ro(SS-A); RO52; Sjoegren Syndrome Type A Antigen; SSA; SS-A; TRIM21; Tripartite Motif-containing Protein 21); Anti -SSA1 (Tripartite Motif-containing 21; anti-TRIM21 antibody

• Host: Mouse
• Reactivity: Human
• Clonality: Polyclonal
• Isotype: IgG
• Specificity: Recognizes human TRIM21.
• Purity/Purification: Affinity Purified; Purified by Protein A affinity chromatography.
• Form/Format: Supplied as a liquid in PBS, pH 7.2.
• Sequence: MASAARLTMMWEEVTCPICLDPFVEPVSIECGHSFCQECISQVGKGGGSVCPVCRQRFLLKNLRPNRQLANMVNNLKEISQEAREGTQGERCAVHGERLHLFCEKDGKALCWVCAQSRKHRDHAMVPLEEAAQEYQEKLQVALGELRRKQELAEKLEVEIAIKRADWKKTVETQKSRIHAEFVQQKNFLVEEEQRQLQELEKDEREQLRILGEKEAKLAQQSQALQELISELDRRCHSSALELLQEVIIVLERSESWNLKDLDITSPELRSVCHVPGLKKMLRTCAVHITLDPDTANPWLILSEDRRQVRLGDTQQSIPGNEERFDSYPMVLGAQHFHSGKHYWEVDVTGKEAWDLGVCRDSVRRKGHFLLSSKSGFWTIWLWNKQKYEAGTYPQTPLHLQVPPCQVGIFLDYEAGMVSFYNITDHGSLIYSFSECAFTGPLRPFFSPGFNDGGKNTAPLTLCPLNIGSQGSTDY

• Applicable Applications for anti-TRIM21 antibody: Western Blot (WB), Immunofluorescence (IF)
• Application Notes: Suitable for use in Western Blot and Immunofluorescence.; Dilution: Immunofluorescence: 10ug/ml
• Immunogen: Full length human TRIM21, aa1-475 (NP_003132).
• Preparation and Storage: May be stored at 4 degree C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degree C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

Western Blot (WB)

(TRIM21 polyclonal antibody. Western Blot analysis of TRIM21 expression in A-431.)

Western Blot (WB)

(Western Blot analysis of TRIM21 expression in transfected 293T cell line by TRIM21 polyclonal antibody. Lane 1: TRIM21 transfected lysate (52.25kD). Lane 2: Non-transfected lysate.)

Immunofluorescence (IF)

(Immunofluorescence of purified antibody to TRIM21 on HeLa cell. [antibody concentration 10ug/ml].)

Related Product Information for anti-TRIM21 antibody

TRIM21 (Tripartite motif-containing protein 21; also Ro(SS-A), 52kD Ro Protein/Ro52, and RING finger protein 81) is a 52-56kD member of the RING finger-B-box-coiled-coil family of proteins. It is an E3 ligase that is found in both nucleus and cytoplasm, where it is often associated with microtubules. TRIM21 ubiquitinates select proteins. In B cells, it targets the Fc fragment of misfolded IgG, providing QC on its production. In macrophages, it acts in a nondegradative manner on IRF8, promoting innate immunity. Human TRIM21 is 475aa in length and contains one E3 ligase RING finger domain (aa16-55), a B-Box type zinc-finger region (aa92-123), a coiled-coil region (aa128-238) and a C-terminal PRY/B30.2 Ig binding domain (aa268-465). TRIM21 is reported to form trimers. Over aa195-293, human TRIM21 exhibits 72aa identity with mouse TRIM21.

Product Categories/Family for anti-TRIM21 antibody

Antibodies; Abs to Transcription Factors

NCBI and Uniprot Product Information

• NCBI GI #: 14994115
• NCBI GeneID: 6737
• UniProt Accession #: P19474; Q5XPV5; Q96RF8
• Molecular Weight: 54,170 Da
• NCBI Official Full Name: SSA1
• NCBI Official Synonym Full Names: tripartite motif containing 21
• NCBI Official Symbol: TRIM21
• NCBI Official Synonym Symbols: SSA; RO52; SSA1; RNF81
• NCBI Protein Information: E3 ubiquitin-protein ligase TRIM21; SS-A; ro(SS-A); 52 kDa Ro protein; RING finger protein 81; Sicca syndrome antigen A; tripartite motif-containing 21; sjoegren syndrome type A antigen; tripartite motif-containing protein 21; 52 kDa ribonucleoprotein autoantigen Ro/SS-A; Sjogren syndrome antigen A1 (52kDa, ribonucleoprotein autoantigen SS-A/Ro)
• UniProt Protein Name: E3 ubiquitin-protein ligase TRIM21
• Protein Family: E3 ubiquitin-protein ligase
• UniProt Gene Name: TRIM21
• UniProt Synonym Gene Names: RNF81; RO52; SSA1; SS-A
• UniProt Entry Name: RO52_HUMAN

NCBI Description

This gene encodes a member of the tripartite motif (TRIM) family. The TRIM motif includes three zinc-binding domains, a RING, a B-box type 1 and a B-box type 2, and a coiled-coil region. The encoded protein is part of the RoSSA ribonucleoprotein, which includes a single polypeptide and one of four small RNA molecules. The RoSSA particle localizes to both the cytoplasm and the nucleus. RoSSA interacts with autoantigens in patients with Sjogren syndrome and systemic lupus erythematosus. Alternatively spliced transcript variants for this gene have been described but the full-length nature of only one has been determined. [provided by RefSeq, Jul 2008]

Uniprot Description

TRIM21: E3 ubiquitin-protein ligase whose activity is dependent on E2 enzymes, UBE2D1, UBE2D2, UBE2E1 and UBE2E2. Forms a ubiquitin ligase complex in cooperation with the E2 UBE2D2 that is used not only for the ubiquitination of USP4 and IKBKB but also for its self-ubiquitination. Component of cullin-RING-based SCF (SKP1-CUL1-F-box protein) E3 ubiquitin-protein ligase complexes such as SCF(SKP2)-like complexes. A TRIM21-containing SCF(SKP2)- like complex is shown to mediate ubiquitination of CDKN1B ('Thr- 187' phosphorylated-form), thereby promoting its degradation by the proteasome. Monoubiquitinates IKBKB that will negatively regulates Tax-induced NF-kappa-B signaling. Negatively regulates IFN-beta production post-pathogen recognition by polyubiquitin- mediated degradation of IRF3. Mediates the ubiquitin-mediated proteasomal degradation of IgG1 heavy chain, which is linked to the VCP-mediated ER-associated degradation (ERAD) pathway. Promotes IRF8 ubiquitination, which enhanced the ability of IRF8 to stimulate cytokine genes transcription in macrophages. Plays a role in the regulation of the cell cycle progression. Enhances the decapping activity of DCP2. Exists as a ribonucleoprotein particle present in all mammalian cells studied and composed of a single polypeptide and one of four small RNA molecules. At least two isoforms are present in nucleated and red blood cells, and tissue specific differences in RO/SSA proteins have been identified. The common feature of these proteins is their ability to bind HY RNAs.2. Belongs to the TRIM/RBCC family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Ligase; Ubiquitin conjugating system; EC 6.3.2.-; Ubiquitin ligase

Chromosomal Location of Human Ortholog: 11p15.5

Cellular Component: nucleoplasm; cytoplasm; SCF ubiquitin ligase complex; cytosol; nucleus; ribonucleoprotein complex

Molecular Function: identical protein binding; protein binding; DNA binding; zinc ion binding; RNA binding; ubiquitin-protein ligase activity; ligase activity

Biological Process: protein monoubiquitination; regulation of interferon type I production; protein autoubiquitination; protein polyubiquitination; protein destabilization; cytokine and chemokine mediated signaling pathway; protein ubiquitination; positive regulation of cell cycle; cell cycle; negative regulation of viral transcription; positive regulation of virion penetration into host cell; inhibition of NF-kappaB transcription factor; positive regulation of interferon type I production; innate immune response; positive regulation of transcription factor activity