This entry represents a domain that structurally resembles the ubiquitin conjugating enzyme domain Pfam:PF00179 and the RWD domain Pfam:PF05773. This domain is somewhat smaller and apparently lacks the conserved cysteine that is used for ubiquitin co ...
This entry represents a domain that structurally resembles the ubiquitin conjugating enzyme domain Pfam:PF00179 and the RWD domain Pfam:PF05773. This domain is somewhat smaller and apparently lacks the conserved cysteine that is used for ubiquitin conjugation. This domain is commonly found in the LTN1 family that comprises E3 ubiquitin-protein ligases involved in the ribosome quality control complex (RQC). The RQC is a ribosome-associated complex that targets incompletely synthesized nascent chains for proteasomal degradation. Members of the LTN1 family are responsible for ubiquitinating stalled nascent chains on the 60S ribosomal subunit, a process facilitated by the recruitment of NEMF in some species. This ubiquitination signals the recruitment of cellular machinery such as VCP/p97, TER94/VCP, or CDC48, depending on the organism, to extract and degrade the incomplete translation products. The LTN1 family plays a crucial role in maintaining protein synthesis fidelity by ensuring the removal of defective ribosomal products, thereby preventing the accumulation of potentially toxic protein fragments within the cell.
This is a family of short ubiquitin-like proteins, that is like neither type-1 or type-2. It is a ubiquitin-fold modifier 1 (Ufm1) that is synthesised in a precursor form of 85 amino-acid residues. In humans the enzyme for Ufm1 is Uba5 and the conjug ...
This is a family of short ubiquitin-like proteins, that is like neither type-1 or type-2. It is a ubiquitin-fold modifier 1 (Ufm1) that is synthesised in a precursor form of 85 amino-acid residues. In humans the enzyme for Ufm1 is Uba5 and the conjugating enzyme is Ufc1. Prior to activation by Uba5 the extra two amino acids at the C-terminal region of the human pro-Ufm1 protein are removed to expose Gly whose residue is necessary for conjugation to target molecule(s). The mature Ufm1 is conjugated to yet unidentified endogenous proteins,[1]. While Ubiquitin and many Ubls possess the conserved C-terminal di-glycine that is adenylated by each specific E1 or E1-like enzyme, respectively, in an ATP-dependent manner, Ufm1(1-83) possesses a single glycine at its C-terminus, which is followed by a Ser-Cys dipeptide in the precursor form of Ufm1. The C-terminally processed Ufm1(1-83) is specifically activated by Uba5, an E1-like enzyme, and then transferred to its cognate Ufc1, an E2-like enzyme [2].
This domain occurs in proteins that have been annotated as Fibronectin/fibrinogen binding protein by similarity. This annotation comes from Swiss:O34693 where the N-terminal region is involved in this activity [1]. It is an RNA binding domain of the ...
This domain occurs in proteins that have been annotated as Fibronectin/fibrinogen binding protein by similarity. This annotation comes from Swiss:O34693 where the N-terminal region is involved in this activity [1]. It is an RNA binding domain of the NFACT (NEMF, FbpA, Caliban, and Tae2) proteins. This NFACT-R family is found in two eukaryotic gene contexts: fused to the NFACT-N and NFACT-C domains in the NFACT protein involved in the ribosomal quality control pathway which contributes to CAT-tailing and as a standalone domain [2]. Additionally this domain contains a conserved motif D/E-X-W/Y-X-H that may be functionally important.
This family includes: archaeal 50S ribosomal protein L18Ae, often referred to as L20e or LX; fungal 60S ribosomal protein L20; and higher eukaryote 60S ribosomal protein L18A.
This domain is found at the N-terminal end of the large ribosomal subunit protein eL19 found in eukaryotes and archaea. This is an helical domain that assumes an orthogonal bundle topology.
This family includes: Ribosomal L7A from metazoa, Ribosomal L8-A and L8-B from fungi, 30S ribosomal protein HS6 from archaebacteria, 40S ribosomal protein S12 from eukaryotes, Ribosomal protein L30 from eukaryotes and archaebacteria. Gadd45 and MyD11 ...
This family includes: Ribosomal L7A from metazoa, Ribosomal L8-A and L8-B from fungi, 30S ribosomal protein HS6 from archaebacteria, 40S ribosomal protein S12 from eukaryotes, Ribosomal protein L30 from eukaryotes and archaebacteria. Gadd45 and MyD118 [1].
This family includes: Ribosomal L7A from metazoa, Ribosomal L8-A and L8-B from fungi, 30S ribosomal protein HS6 from archaebacteria, 40S ribosomal protein S12 from eukaryotes, Ribosomal protein L30 from eukaryotes and archaebacteria. Gadd45 and MyD11 ...
This family includes: Ribosomal L7A from metazoa, Ribosomal L8-A and L8-B from fungi, 30S ribosomal protein HS6 from archaebacteria, 40S ribosomal protein S12 from eukaryotes, Ribosomal protein L30 from eukaryotes and archaebacteria. Gadd45 and MyD118 [1].
