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Category: OntologyTerm
Type Details Score
Ontology Term
Description: Diaminopimelate epimerase contains two domains of the same alpha/beta fold, both contained in this family.
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Description: NULL
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Description: This domain is found in Saccharomyces cerevisiae protein SMP2, proteins with an N-terminal lipin domain (Pfam: PF04571) [1]. SMP2 (also known as PAH1) is involved in plasmid maintenance and respiration [2], and has been identified as a Mg2+-dependent phosphatidate phosphatase (EC:3.1.3.4) that contains a haloacid dehalogenase (HAD)-like domain [4]. Lipin proteins are involved in adipose tissue development and insulin resistance [3].
Ontology Term
Description: Mutations in the lipin gene lead to fatty liver dystrophy in mice. The protein has been shown to be phosphorylated by the TOR Ser/Thr protein kinases in response to insulin stimulation. The conserved region is found at the N-terminus of the member proteins [1,2].
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Description: Characterised proteins in this family include probable iron export permease protein FetB, which is part of the ABC transporter complex FetAB, probably involved in iron export [1], and aluminium sensitive 3 protein, also part of an ABC transporter required for aluminum (Al) resistance [2]. This family also includes integral membrane proteins currently uncharacterised.
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Description: This domain was identified by Babu and colleagues in a variety of transposases [1].
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Description: NULL
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Description: NULL
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Description: This family includes Ribosomal L4/L1 from eukaryotes and archaebacteria and L4 from eubacteria. L4 from yeast has been shown to bind rRNA [1].
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Description: This family is found at the very C-terminal of 60 ribosomal L4 proteins.
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Description: Nop10p is a nucleolar protein that is specifically associated with H/ACA snoRNAs. It is essential for normal 18S rRNA production and rRNA pseudouridylation by the ribonucleoprotein particles containing H/ACA snoRNAs (H/ACA snoRNPs). Nop10p is probably necessary for the stability of these RNPs [1].
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Description: This protein is known as S12 in bacteria and archaea and S23 in eukaryotes.
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Description: This family represents the eukaryotic vacuolar (H+)-ATPase (V-ATPase) G subunit. V-ATPases generate an acidic environment in several intracellular compartments. Correspondingly, they are found as membrane-attached proteins in several organelles. They are also found in the plasma membranes of some specialised cells. V-ATPases consist of peripheral (V1) and membrane integral (V0) heteromultimeric complexes. The G subunit is part of the V1 subunit, but is also thought to be strongly attached to the V0 complex. It may be involved in the coupling of ATP degradation to H+ translocation.
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Description: This protein regulates the expression of proteins associated with leaf senescence in plants [1,2].
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Description: These pyridoxal-dependent decarboxylases act on ornithine, lysine, arginine and related substrates.
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Description: These pyridoxal-dependent decarboxylases acting on ornithine, lysine, arginine and related substrates This domain has a TIM barrel fold.
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Description: The members of this family share a highly conserved motif PGGXGTXXE that is probably functionally important. This family includes proteins annotated as lysine decarboxylases, although the evidence for this is not clear.
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Description: Members of this family include Translin Swiss:Q15631 that interacts with DNA and forms a ring around the DNA. This family also includes Swiss:Q99598, that was found to interact with translin with yeast two-hybrid screen [1].
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Description: Region 2 of sigma-70 is the most conserved region of the entire protein. All members of this class of sigma-factor contain region 2. The high conservation is due to region 2 containing both the -10 promoter recognition helix and the primary core RNA polymerase binding determinant. The core binding helix, interacts with the clamp domain of the largest polymerase subunit, beta prime [1,2]. The aromatic residues of the recognition helix, found at the C-terminus of this domain are though to mediate strand separation, thereby allowing transcription initiation [1,2].
Ontology Term
Description: Region 3 forms a discrete compact three helical domain within the sigma-factor. Region is not normally involved in the recognition of promoter DNA, but as some specific bacterial promoters containing an extended -10 promoter element, residues within region 3 play an important role. Region 3 primarily is involved in binding the core RNA polymerase in the holoenzyme [1].
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Description: Region 4 of sigma-70 like sigma-factors are involved in binding to the -35 promoter element via a helix-turn-helix motif [1]. Due to the way Pfam works, the threshold has been set artificially high to prevent overlaps with other helix-turn-helix families. Therefore there are many false negatives.
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Description: This domain has a double psi-beta barrel fold and includes VCP-like ATPase and N-ethylmaleimide sensitive fusion protein N-terminal domains. Both the VAT and NSF N-terminal functional domains consist of two structural domains of which this is at the N-terminus. The VAT-N domain found in AAA ATPases Pfam:PF00004 is a substrate 185-residue recognition domain [1].
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Description: This entry represents a novel family of membrane magnesium transporters (MMgT) [1]. The proteins, MMgT1 and MMgT2, are localised to the Golgi complex and post-Golgi vesicles, including the early endosomes, suggesting that they may provide regulated pathways for Mg(2+) transport in the Golgi and post-Golgi organelles of epithelium-derived cells [1].
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Description: This domain is found in histidyl, glycyl, threonyl and prolyl tRNA synthetases [1] it is probably the anticodon binding domain [2].
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Description: This is a family of class II aminoacyl-tRNA synthetase-like and ATP phosphoribosyltransferase regulatory subunits.
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Description: The three domains of S-adenosylmethionine synthetase have the same alpha+beta fold.
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Description: The three domains of S-adenosylmethionine synthetase have the same alpha+beta fold.
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Description: This domain is found a variety of proteins involved in biosynthesis of molybdopterin cofactor. The domain is presumed to bind molybdopterin. The structure of this domain is known, and it forms an alpha/beta structure. In the known structure of Gephyrin this domain mediates trimerisation [1].
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Description: This domain is found in phosphoadenosine phosphosulfate (PAPS) reductase enzymes or PAPS sulfotransferase. PAPS reductase is part of the adenine nucleotide alpha hydrolases superfamily also including N type ATP PPases and ATP sulphurylases [1]. The enzyme uses thioredoxin as an electron donor for the reduction of PAPS to phospho-adenosine-phosphate (PAP) [1,2]. It is also found in NodP nodulation protein P from Rhizobium which has ATP sulfurylase activity (sulfate adenylate transferase) [3].
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Description: This family of proteins is functionally uncharacterized. This family of proteins is found in eukaryotes. Proteins in this family are typically between 109 and 173 amino acids in length. There are two conserved sequence motifs: IPL and FLVD.
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Description: Protein phosphatase 2A (PP2A) is a major intracellular protein phosphatase that regulates multiple aspects of cell growth and metabolism. The ability of this widely distributed heterotrimeric enzyme to act on a diverse array of substrates is largely controlled by the nature of its regulatory B subunit. There are multiple families of B subunits (See also Pfam:PF01240), this family is called the B56 family [1].
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Description: This domain is found at the C-terminus of proteins containing WD40 repeats. These proteins are part of the U3 ribonucleoprotein the yeast protein is called Utp12 or DIP2 Swiss:Q12220 [1].
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Description: This family represents a conserved region approximately 150 residues long within a number of eukaryotic proteins that show homology with Drosophila melanogaster Modifier of rudimentary (Mod(r)) proteins. The N-terminal half of Mod(r) proteins is acidic, whereas the C-terminal half is basic [1], and both of these regions are represented in this family. Members of this family include the Vps37 subunit of the endosomal sorting complex ESCRT-I, a complex involved in recruiting transport machinery for protein sorting at the multivesicular body (MVB). The yeast ESCRT-I complex consists of three proteins (Vps23, Vps28 and Vps37). The mammalian homologue of Vps37 interacts with Tsg101 (Pfam: PF05743) through its mod(r) domain and its function is essential for lysosomal sorting of EGF receptors [2].
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Description: CactinC_cactus is the C-terminal 200 residues of the cactin protein which are necessary for the association of cactin with IkappaB-cactus as one of the intracellular members of the Rel complex. The Rel (NF-kappaB) pathway is conserved in invertebrates and vertebrates. In mammals, it controls the activities of the immune and inflammatory response genes as well as viral genes, and is critical for cell growth and survival. In Drosophila, the Rel pathway functions in the innate cellular and humoral immune response, in muscle development, and in the establishment of dorsal-ventral polarity in the early embryo [1]. Most members of the family also have a Cactin_mid domain Pfam:PF10312 further upstream.
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Description: Different types of LEA proteins are expressed at different stages of late embryogenesis in higher plant seed embryos and under conditions of dehydration stress. The function of these proteins is unknown.
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Description: NULL
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Description: This entry represents the C-terminal domain of PSI proteins from Arabidopsis. This domain is found associated with Pfam:PF11961. PSI1 was identified as a gene that is co-expressed with the phytosulfokine (PSK) receptor genes PSKR1 and PSKR2 in Arabidopsis thaliana. PSI proteins are plant-specific and promote growth [1].
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Description: This entry represents the N-terminal domain of PSI proteins from Arabidopsis. This domain is found associated with Pfam:PF05003. PSI1 was identified as a gene that is co-expressed with the phytosulfokine (PSK) receptor genes PSKR1 and PSKR2 in Arabidopsis thaliana. PSI proteins are plant-specific and promote growth [1].
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Description: NULL
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Description: This family contains a diverse range of structurally related DNA repair proteins. The superfamily is called the HhH-GPD family after its hallmark Helix-hairpin-helix and Gly/Pro rich loop followed by a conserved aspartate [2]. This includes endonuclease III, EC:4.2.99.18 and MutY an A/G-specific adenine glycosylase, both have a C terminal 4Fe-4S cluster. The family also includes 8-oxoguanine DNA glycosylases such as Swiss:P53397. The methyl-CPG binding protein MBD4 Swiss:Q9Z2D7 also contains a related domain [1] that is a thymine DNA glycosylase. The family also includes DNA-3-methyladenine glycosylase II EC:3.2.2.21 and other members of the AlkA family.
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Description: This is a predicted RRM-fold domain present at the C-terminus of Demeter-like glycoslyases [1]. These proteins are involved in DNA demethylation in plants where they catalyze removal of the 5mC base and subsequently cleave the backbone through lyase activity. Orthologs of Demeter are present in plants and stramenopiles. The RRM fold domain is predicted to facilitate interaction of the catalytic domain with ssDNA or regulatory RNA [1].
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Description: Trophinin and tastin form a cell adhesion molecule complex that potentially mediates an initial attachment of the blastocyst to uterine epithelial cells at the time of implantation. Trophinin and tastin bind to an intermediary cytoplasmic protein called bystin. Bystin may be involved in implantation and trophoblast invasion because bystin is found with trophinin and tastin in the cells at human implantation sites and also in the intermediate trophoblasts at invasion front in the placenta from early pregnancy [1]. This family also includes the yeast protein ENP1. ENP1 is an essential protein in Saccharomyces cerevisiae and is localised in the nucleus [2]. It is thought that ENP1 plays a direct role in the early steps of rRNA processing as enp1 defective yeast cannot synthesise 20S pre-rRNA and hence 18S rRNA, which leads to reduced formation of 40S ribosomal subunits [3].
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