The name of this superfamily has been modified since the most recent official CATH+ release (v4_2_0). At the point of the last release, this superfamily was: waiting to be named.
FunFam 43727: Splicing factor u2af large subunit
Please note: GO annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.
There are 16 GO terms relating to "molecular function"
The search results have been sorted with the annotations that are found most frequently at the top of the
list. The results can be filtered by typing text into the search box at the top of the table.
| GO Term | Annotations | Evidence |
|---|---|---|
|
Protein binding GO:0005515
Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
|
17 |
O13845 (/IPI)
O23212 (/IPI)
P26368 (/IPI)
P26369 (/IPI)
P36629 (/IPI)
P90978 (/IPI)
Q01081 (/IPI)
Q09176 (/IPI)
Q14498 (/IPI)
Q24562 (/IPI)
(7 more) |
|
MRNA binding GO:0003729
Interacting selectively and non-covalently with messenger RNA (mRNA), an intermediate molecule between DNA and protein. mRNA includes UTR and coding sequences, but does not contain introns.
|
8 | P36629 (/ISS) Q24562 (/ISS) Q86BN2 (/ISS) Q8IE99 (/ISS) Q94535 (/ISS) Q9VM49 (/ISS) Q9VR26 (/ISS) Q9W1T4 (/ISS) |
|
Pre-mRNA 3'-splice site binding GO:0030628
Interacting selectively and non-covalently with the pre-mRNA 3' splice site sequence.
|
4 | P26368 (/IDA) P90978 (/IDA) Q8MXS2 (/IDA) Q9U2U0 (/IDA) |
|
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
|
3 | P26368 (/IDA) Q01081 (/IDA) Q14498 (/IDA) |
|
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
|
2 | Q24562 (/IMP) Q9W1T4 (/IMP) |
|
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
|
2 | P26369 (/ISO) Q8VH51 (/ISO) |
|
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
|
2 | Q8IIH4 (/ISS) Q8IKE9 (/ISS) |
|
Poly-pyrimidine tract binding GO:0008187
Interacting selectively and non-covalently with any stretch of pyrimidines (cytosine or uracil) in an RNA molecule.
|
2 | Q24562 (/IDA) Q94535 (/IDA) |
|
Transcription coactivator activity GO:0003713
Interacting selectively and non-covalently with a activating transcription factor and also with the basal transcription machinery in order to increase the frequency, rate or extent of transcription. Cofactors generally do not bind the template nucleic acid, but rather mediate protein-protein interactions between activating transcription factors and the basal transcription machinery.
|
1 | Q8VH51 (/TAS) |
|
Poly-pyrimidine tract binding GO:0008187
Interacting selectively and non-covalently with any stretch of pyrimidines (cytosine or uracil) in an RNA molecule.
|
1 | Q54LV5 (/ISS) |
|
Enzyme binding GO:0019899
Interacting selectively and non-covalently with any enzyme.
|
1 | P26368 (/IPI) |
|
Enzyme binding GO:0019899
Interacting selectively and non-covalently with any enzyme.
|
1 | P26369 (/ISO) |
|
Pre-mRNA 3'-splice site binding GO:0030628
Interacting selectively and non-covalently with the pre-mRNA 3' splice site sequence.
|
1 | P26369 (/ISO) |
|
RS domain binding GO:0050733
Interacting selectively and non-covalently with an RS domain of a protein; RS domains are usually highly phosphorylated and characterized by the presence of arginine (R)/serine (S) dipeptides. The RS domain promotes protein-protein interactions and directs subcellular localization and, in certain situations, nucleocytoplasmic shuttling of individual SR proteins. They also play a role in splicing.
|
1 | Q9D883 (/IPI) |
|
C2H2 zinc finger domain binding GO:0070742
Interacting selectively and non-covalently with a C2H2-type zinc finger domain of a protein. The C2H2 zinc finger is the classical zinc finger domain, in which two conserved cysteines and histidines co-ordinate a zinc ion.
|
1 | P26369 (/IPI) |
|
U1 snRNP binding GO:1990446
Interacting selectively and non-covalently with any part of a U1 small nuclear ribonucleoprotein particle.
|
1 | O13845 (/IDA) |
There are 58 GO terms relating to "biological process"
The search results have been sorted with the annotations that are found most frequently at the top of the
list. The results can be filtered by typing text into the search box at the top of the table.
| GO Term | Annotations | Evidence |
|---|---|---|
|
MRNA splicing, via spliceosome GO:0000398
The joining together of exons from one or more primary transcripts of messenger RNA (mRNA) and the excision of intron sequences, via a spliceosomal mechanism, so that mRNA consisting only of the joined exons is produced.
|
8 | O23212 (/ISS) Q24562 (/ISS) Q54LV5 (/ISS) Q54NS6 (/ISS) Q86BN2 (/ISS) Q8IIH4 (/ISS) Q8IKE9 (/ISS) Q9VR26 (/ISS) |
|
MRNA splicing, via spliceosome GO:0000398
The joining together of exons from one or more primary transcripts of messenger RNA (mRNA) and the excision of intron sequences, via a spliceosomal mechanism, so that mRNA consisting only of the joined exons is produced.
|
5 | P26368 (/IC) Q01081 (/IC) Q24562 (/IC) Q94535 (/IC) Q9VM49 (/IC) |
|
Regulation of alternative mRNA splicing, via spliceosome GO:0000381
Any process that modulates the frequency, rate or extent of alternative splicing of nuclear mRNAs.
|
3 | Q24562 (/IMP) Q94535 (/IMP) Q9VM49 (/IMP) |
|
MRNA splicing, via spliceosome GO:0000398
The joining together of exons from one or more primary transcripts of messenger RNA (mRNA) and the excision of intron sequences, via a spliceosomal mechanism, so that mRNA consisting only of the joined exons is produced.
|
3 | P26368 (/TAS) Q01081 (/TAS) Q8WU68 (/TAS) |
|
Termination of RNA polymerase II transcription GO:0006369
The process in which the synthesis of an RNA molecule by RNA polymerase II using a DNA template is completed.
|
3 | P26368 (/TAS) Q01081 (/TAS) Q8WU68 (/TAS) |
|
RNA export from nucleus GO:0006405
The directed movement of RNA from the nucleus to the cytoplasm.
|
3 | P26368 (/TAS) Q01081 (/TAS) Q8WU68 (/TAS) |
|
MRNA export from nucleus GO:0006406
The directed movement of mRNA from the nucleus to the cytoplasm.
|
3 | P26368 (/TAS) Q01081 (/TAS) Q8WU68 (/TAS) |
|
MRNA 3'-end processing GO:0031124
Any process involved in forming the mature 3' end of an mRNA molecule.
|
3 | P26368 (/TAS) Q01081 (/TAS) Q8WU68 (/TAS) |
|
MRNA splicing, via spliceosome GO:0000398
The joining together of exons from one or more primary transcripts of messenger RNA (mRNA) and the excision of intron sequences, via a spliceosomal mechanism, so that mRNA consisting only of the joined exons is produced.
|
2 | Q24562 (/IMP) Q94535 (/IMP) |
|
Nematode larval development GO:0002119
The process whose specific outcome is the progression of the nematode larva over time, from its formation to the mature structure. Nematode larval development begins with the newly hatched first-stage larva (L1) and ends with the end of the last larval stage (for example the fourth larval stage (L4) in C. elegans). Each stage of nematode larval development is characterized by proliferation of specific cell lineages and an increase in body size without alteration of the basic body plan. Nematode larval stages are separated by molts in which each stage-specific exoskeleton, or cuticle, is shed and replaced anew.
|
2 | P90978 (/IMP) Q8MXS2 (/IMP) |
|
MRNA processing GO:0006397
Any process involved in the conversion of a primary mRNA transcript into one or more mature mRNA(s) prior to translation into polypeptide.
|
2 | P26368 (/TAS) Q01081 (/TAS) |
|
Germ cell development GO:0007281
The process whose specific outcome is the progression of an immature germ cell over time, from its formation to the mature structure (gamete). A germ cell is any reproductive cell in a multicellular organism.
|
2 | P90978 (/IMP) Q8MXS2 (/IMP) |
|
RNA splicing GO:0008380
The process of removing sections of the primary RNA transcript to remove sequences not present in the mature form of the RNA and joining the remaining sections to form the mature form of the RNA.
|
2 | Q24562 (/IMP) Q94535 (/IMP) |
|
Embryo development ending in birth or egg hatching GO:0009792
The process whose specific outcome is the progression of an embryo over time, from zygote formation until the end of the embryonic life stage. The end of the embryonic life stage is organism-specific and may be somewhat arbitrary; for mammals it is usually considered to be birth, for insects the hatching of the first instar larva from the eggshell.
|
2 | P90978 (/IMP) Q8MXS2 (/IMP) |
|
Embryonic body morphogenesis GO:0010172
The process in which the anatomical structures of the embryonic soma are generated and organized.
|
2 | P90978 (/IMP) Q8MXS2 (/IMP) |
|
Wound healing GO:0042060
The series of events that restore integrity to a damaged tissue, following an injury.
|
2 | Q86BN2 (/IMP) Q9VR26 (/IMP) |
|
MRNA cis splicing, via spliceosome GO:0045292
The joining together, after removal of an intervening sequence composed of one or more introns, of two segments of the same RNA molecule via spliceosomal catalysis to produce an mRNA composed only of exon sequences that all came from the same primary transcript.
|
2 | P36629 (/IMP) Q09176 (/IMP) |
|
Photoperiodism, flowering GO:0048573
A change from the vegetative to the reproductive phase as a result of detection of, or exposure to, a period of light or dark of a given length. The length of the period of light or dark required to initiate the change is set relative to a particular duration known as the 'critical day length'. The critical day length varies between species.
|
2 | Q9FMY5 (/IMP) Q9S709 (/IMP) |
|
Developmental growth GO:0048589
The increase in size or mass of an entire organism, a part of an organism or a cell, where the increase in size or mass has the specific outcome of the progression of the organism over time from one condition to another.
|
2 | P90978 (/IMP) Q8MXS2 (/IMP) |
|
Regulation of mitophagy GO:1903146
Any process that modulates the frequency, rate or extent of mitochondrion degradation (mitophagy).
|
2 | P26368 (/IMP) Q01081 (/IMP) |
|
Positive regulation of protein targeting to mitochondrion GO:1903955
Any process that activates or increases the frequency, rate or extent of protein targeting to mitochondrion.
|
2 | P26368 (/IMP) Q01081 (/IMP) |
|
Spliceosomal complex assembly GO:0000245
The aggregation, arrangement and bonding together of a spliceosomal complex, a ribonucleoprotein apparatus that catalyzes nuclear mRNA splicing via transesterification reactions.
|
1 | P36629 (/IMP) |
|
MRNA branch site recognition GO:0000348
Recognition of the pre-mRNA branch site sequence by components of the assembling spliceosome.
|
1 | P36629 (/ISS) |
|
RNA splicing, via transesterification reactions GO:0000375
Splicing of RNA via a series of two transesterification reactions.
|
1 | Q8IE99 (/ISS) |
|
Regulation of alternative mRNA splicing, via spliceosome GO:0000381
Any process that modulates the frequency, rate or extent of alternative splicing of nuclear mRNAs.
|
1 | Q8MXS2 (/ISS) |
|
MRNA 3'-splice site recognition GO:0000389
Recognition of the intron 3'-splice site by components of the assembling U2- or U12-type spliceosome.
|
1 | P90978 (/IMP) |
|
MRNA splicing, via spliceosome GO:0000398
The joining together of exons from one or more primary transcripts of messenger RNA (mRNA) and the excision of intron sequences, via a spliceosomal mechanism, so that mRNA consisting only of the joined exons is produced.
|
1 | P26368 (/IDA) |
|
MRNA splicing, via spliceosome GO:0000398
The joining together of exons from one or more primary transcripts of messenger RNA (mRNA) and the excision of intron sequences, via a spliceosomal mechanism, so that mRNA consisting only of the joined exons is produced.
|
1 | P26369 (/ISO) |
|
Transcription, DNA-templated GO:0006351
The cellular synthesis of RNA on a template of DNA.
|
1 | Q8VH51 (/TAS) |
|
Regulation of transcription from RNA polymerase II promoter GO:0006357
Any process that modulates the frequency, rate or extent of transcription from an RNA polymerase II promoter.
|
1 | Q59LX5 (/IMP) |
|
RNA processing GO:0006396
Any process involved in the conversion of one or more primary RNA transcripts into one or more mature RNA molecules.
|
1 | Q14498 (/TAS) |
|
RNA splicing GO:0008380
The process of removing sections of the primary RNA transcript to remove sequences not present in the mature form of the RNA and joining the remaining sections to form the mature form of the RNA.
|
1 | P26369 (/IDA) |
|
RNA splicing GO:0008380
The process of removing sections of the primary RNA transcript to remove sequences not present in the mature form of the RNA and joining the remaining sections to form the mature form of the RNA.
|
1 | Q8IE99 (/ISS) |
|
RNA splicing GO:0008380
The process of removing sections of the primary RNA transcript to remove sequences not present in the mature form of the RNA and joining the remaining sections to form the mature form of the RNA.
|
1 | Q01081 (/TAS) |
|
Positive regulation of cell-substrate adhesion GO:0010811
Any process that increases the frequency, rate or extent of cell-substrate adhesion. Cell-substrate adhesion is the attachment of a cell to the underlying substrate via adhesion molecules.
|
1 | Q59LX5 (/IMP) |
|
Regulation of glucose metabolic process GO:0010906
Any process that modulates the rate, frequency or extent of glucose metabolism. Glucose metabolic processes are the chemical reactions and pathways involving glucose, the aldohexose gluco-hexose.
|
1 | Q94535 (/IMP) |
|
Negative regulation of protein ubiquitination GO:0031397
Any process that stops, prevents, or reduces the frequency, rate or extent of the addition of ubiquitin groups to a protein.
|
1 | P26368 (/IDA) |
|
Negative regulation of protein ubiquitination GO:0031397
Any process that stops, prevents, or reduces the frequency, rate or extent of the addition of ubiquitin groups to a protein.
|
1 | P26368 (/IMP) |
|
Negative regulation of protein ubiquitination GO:0031397
Any process that stops, prevents, or reduces the frequency, rate or extent of the addition of ubiquitin groups to a protein.
|
1 | P26369 (/ISO) |
|
Negative regulation of RNA splicing GO:0033119
Any process that stops, prevents, or reduces the frequency, rate or extent of RNA splicing.
|
1 | Q9W1T4 (/IMP) |
|
Positive regulation of RNA splicing GO:0033120
Any process that activates or increases the frequency, rate or extent of RNA splicing.
|
1 | P26368 (/IDA) |
|
Positive regulation of RNA splicing GO:0033120
Any process that activates or increases the frequency, rate or extent of RNA splicing.
|
1 | P26369 (/ISO) |
|
Positive regulation of RNA splicing GO:0033120
Any process that activates or increases the frequency, rate or extent of RNA splicing.
|
1 | P26369 (/ISS) |
|
Defense response to bacterium GO:0042742
Reactions triggered in response to the presence of a bacterium that act to protect the cell or organism.
|
1 | O23212 (/IEP) |
|
Single-species biofilm formation on inanimate substrate GO:0044011
A process in which microorganisms of the same species attach to and grow on an inanimate surface such as a rock or pipe, and produce extracellular polymers that facilitate attachment and matrix formation, resulting in an alteration in the phenotype of the organisms with respect to growth rate and gene transcription.
|
1 | Q59LX5 (/IMP) |
|
MRNA cis splicing, via spliceosome GO:0045292
The joining together, after removal of an intervening sequence composed of one or more introns, of two segments of the same RNA molecule via spliceosomal catalysis to produce an mRNA composed only of exon sequences that all came from the same primary transcript.
|
1 | O13845 (/ISS) |
|
Positive regulation of Ras protein signal transduction GO:0046579
Any process that activates or increases the frequency, rate or extent of Ras protein signal transduction.
|
1 | Q9VM49 (/IGI) |
|
Positive regulation of RNA export from nucleus GO:0046833
Any process that activates or increases the frequency, rate or extent of directed movement of RNA from the nucleus into the cytoplasm.
|
1 | Q24562 (/IMP) |
|
Regulation of mRNA splicing, via spliceosome GO:0048024
Any process that modulates the frequency, rate or extent of mRNA splicing via a spliceosomal mechanism.
|
1 | P90978 (/ISS) |
|
Negative regulation of mRNA splicing, via spliceosome GO:0048025
Any process that stops, prevents or reduces the rate or extent of mRNA splicing via a spliceosomal mechanism.
|
1 | P26368 (/IDA) |
|
Negative regulation of mRNA splicing, via spliceosome GO:0048025
Any process that stops, prevents or reduces the rate or extent of mRNA splicing via a spliceosomal mechanism.
|
1 | P26369 (/ISO) |
|
Negative regulation of mRNA splicing, via spliceosome GO:0048025
Any process that stops, prevents or reduces the rate or extent of mRNA splicing via a spliceosomal mechanism.
|
1 | P26369 (/ISS) |
|
Nuclear export GO:0051168
The directed movement of substances out of the nucleus.
|
1 | Q24562 (/IMP) |
|
Regulation of gene silencing GO:0060968
Any process that modulates the rate, frequency, or extent of gene silencing, the transcriptional or post-transcriptional process carried out at the cellular level that results in long-term gene inactivation.
|
1 | Q9W1T4 (/IMP) |
|
Positive regulation of ERK1 and ERK2 cascade GO:0070374
Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the ERK1 and ERK2 cascade.
|
1 | Q9VM49 (/IGI) |
|
Positive regulation of cell adhesion involved in single-species biofilm formation GO:1900189
Any process that activates or increases the frequency, rate or extent of cell adhesion involved in single-species biofilm formation.
|
1 | Q59LX5 (/IMP) |
|
Regulation of mitophagy GO:1903146
Any process that modulates the frequency, rate or extent of mitochondrion degradation (mitophagy).
|
1 | P26369 (/ISO) |
|
Positive regulation of protein targeting to mitochondrion GO:1903955
Any process that activates or increases the frequency, rate or extent of protein targeting to mitochondrion.
|
1 | P26369 (/ISO) |
There are 30 GO terms relating to "cellular component"
The search results have been sorted with the annotations that are found most frequently at the top of the
list. The results can be filtered by typing text into the search box at the top of the table.
| GO Term | Annotations | Evidence |
|---|---|---|
|
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
|
6 | O13845 (/IDA) P26368 (/IDA) P36629 (/IDA) Q09176 (/IDA) Q9FMY5 (/IDA) Q9S709 (/IDA) |
|
Spliceosomal complex GO:0005681
Any of a series of ribonucleoprotein complexes that contain snRNA(s) and small nuclear ribonucleoproteins (snRNPs), and are formed sequentially during the spliceosomal splicing of one or more substrate RNAs, and which also contain the RNA substrate(s) from the initial target RNAs of splicing, the splicing intermediate RNA(s), to the final RNA products. During cis-splicing, the initial target RNA is a single, contiguous RNA transcript, whether mRNA, snoRNA, etc., and the released products are a spliced RNA and an excised intron, generally as a lariat structure. During trans-splicing, there are two initial substrate RNAs, the spliced leader RNA and a pre-mRNA.
|
6 | O13845 (/ISS) P90978 (/ISS) Q24562 (/ISS) Q86BN2 (/ISS) Q8MXS2 (/ISS) Q9VR26 (/ISS) |
|
U2AF GO:0089701
A heterodimeric protein complex consisting of conserved large and small U2AF subunits that contributes to spliceosomal RNA splicing by binding to consensus sequences at the 3' splice site. U2AF is required to stabilize the association of the U2 snRNP with the branch point.
|
6 | P26368 (/IDA) P36629 (/IDA) Q01081 (/IDA) Q09176 (/IDA) Q24562 (/IDA) Q94535 (/IDA) |
|
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
|
5 | P90978 (/IDA) Q01081 (/IDA) Q14498 (/IDA) Q24562 (/IDA) Q9VM49 (/IDA) |
|
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
|
4 | P26368 (/TAS) Q01081 (/TAS) Q14498 (/TAS) Q8WU68 (/TAS) |
|
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
|
3 | Q24562 (/IC) Q94535 (/IC) Q9VM49 (/IC) |
|
Nuclear speck GO:0016607
A discrete extra-nucleolar subnuclear domain, 20-50 in number, in which splicing factors are seen to be localized by immunofluorescence microscopy.
|
3 | P26368 (/IDA) Q14498 (/IDA) Q9D883 (/IDA) |
|
U2-type prespliceosome GO:0071004
A spliceosomal complex that is formed by association of the 5' splice site with the U1 snRNP, while the branch point sequence is recognized by the U2 snRNP. The prespliceosome includes many proteins in addition to those found in the U1 and U2 snRNPs. Commitment to a given pair of 5' and 3' splice sites occurs at the time of prespliceosome formation.
|
3 | P26368 (/IDA) P36629 (/IDA) Q09176 (/IDA) |
|
Precatalytic spliceosome GO:0071011
A spliceosomal complex that is formed by the recruitment of a preassembled U5-containing tri-snRNP to the prespliceosome. Although all 5 snRNPs are present, the precatalytic spliceosome is catalytically inactive. The precatalytic spliceosome includes many proteins in addition to those found in the associated snRNPs.
|
3 | Q24562 (/IDA) Q94535 (/IDA) Q9VM49 (/IDA) |
|
Commitment complex GO:0000243
A spliceosomal complex that is formed by association of the U1 snRNP with the 5' splice site of an unspliced intron in an RNA transcript.
|
2 | P36629 (/IDA) Q09176 (/IDA) |
|
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
|
2 | O23212 (/IPI) Q8L716 (/IPI) |
|
Spliceosomal complex GO:0005681
Any of a series of ribonucleoprotein complexes that contain snRNA(s) and small nuclear ribonucleoproteins (snRNPs), and are formed sequentially during the spliceosomal splicing of one or more substrate RNAs, and which also contain the RNA substrate(s) from the initial target RNAs of splicing, the splicing intermediate RNA(s), to the final RNA products. During cis-splicing, the initial target RNA is a single, contiguous RNA transcript, whether mRNA, snoRNA, etc., and the released products are a spliced RNA and an excised intron, generally as a lariat structure. During trans-splicing, there are two initial substrate RNAs, the spliced leader RNA and a pre-mRNA.
|
2 | P26368 (/IDA) Q01081 (/IDA) |
|
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
|
2 | F4ILE1 (/IDA) Q09176 (/IDA) |
|
Nuclear speck GO:0016607
A discrete extra-nucleolar subnuclear domain, 20-50 in number, in which splicing factors are seen to be localized by immunofluorescence microscopy.
|
2 | P26369 (/ISO) Q8VH51 (/ISO) |
|
Nuclear speck GO:0016607
A discrete extra-nucleolar subnuclear domain, 20-50 in number, in which splicing factors are seen to be localized by immunofluorescence microscopy.
|
2 | A1A4K8 (/ISS) Q01081 (/ISS) |
|
Catalytic step 2 spliceosome GO:0071013
A spliceosomal complex that contains three snRNPs, including U5, bound to a splicing intermediate in which the first catalytic cleavage of the 5' splice site has occurred. The precise subunit composition differs significantly from that of the catalytic step 1, or activated, spliceosome, and includes many proteins in addition to those found in the associated snRNPs.
|
2 | Q01081 (/IDA) Q9VM49 (/IDA) |
|
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
|
1 | P26369 (/ISO) |
|
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
|
1 | Q8VH51 (/TAS) |
|
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
|
1 | Q8VH51 (/ISO) |
|
Spliceosomal complex GO:0005681
Any of a series of ribonucleoprotein complexes that contain snRNA(s) and small nuclear ribonucleoproteins (snRNPs), and are formed sequentially during the spliceosomal splicing of one or more substrate RNAs, and which also contain the RNA substrate(s) from the initial target RNAs of splicing, the splicing intermediate RNA(s), to the final RNA products. During cis-splicing, the initial target RNA is a single, contiguous RNA transcript, whether mRNA, snoRNA, etc., and the released products are a spliced RNA and an excised intron, generally as a lariat structure. During trans-splicing, there are two initial substrate RNAs, the spliced leader RNA and a pre-mRNA.
|
1 | P26369 (/ISO) |
|
U2-type spliceosomal complex GO:0005684
Any spliceosomal complex that forms during the splicing of a messenger RNA primary transcript to excise an intron that has canonical consensus sequences near the 5' and 3' ends.
|
1 | Q09176 (/ISS) |
|
U2 snRNP GO:0005686
A ribonucleoprotein complex that contains small nuclear RNA U2.
|
1 | Q8IIH4 (/ISS) |
|
Microtubule organizing center GO:0005815
An intracellular structure that can catalyze gamma-tubulin-dependent microtubule nucleation and that can anchor microtubules by interacting with their minus ends, plus ends or sides.
|
1 | Q14498 (/IDA) |
|
Microtubule organizing center GO:0005815
An intracellular structure that can catalyze gamma-tubulin-dependent microtubule nucleation and that can anchor microtubules by interacting with their minus ends, plus ends or sides.
|
1 | Q8VH51 (/ISO) |
|
Cajal body GO:0015030
A class of nuclear body, first seen after silver staining by Ramon y Cajal in 1903, enriched in small nuclear ribonucleoproteins, and certain general RNA polymerase II transcription factors; ultrastructurally, they appear as a tangle of coiled, electron-dense threads roughly 0.5 micrometers in diameter; involved in aspects of snRNP biogenesis; the protein coilin serves as a marker for Cajal bodies. Some argue that Cajal bodies are the sites for preassembly of transcriptosomes, unitary particles involved in transcription and processing of RNA.
|
1 | Q01081 (/TAS) |
|
Microtubule cytoskeleton GO:0015630
The part of the cytoskeleton (the internal framework of a cell) composed of microtubules and associated proteins.
|
1 | Q14498 (/IDA) |
|
Microtubule cytoskeleton GO:0015630
The part of the cytoskeleton (the internal framework of a cell) composed of microtubules and associated proteins.
|
1 | Q8VH51 (/ISO) |
|
Nuclear speck GO:0016607
A discrete extra-nucleolar subnuclear domain, 20-50 in number, in which splicing factors are seen to be localized by immunofluorescence microscopy.
|
1 | P26369 (/TAS) |
|
U2-type prespliceosome GO:0071004
A spliceosomal complex that is formed by association of the 5' splice site with the U1 snRNP, while the branch point sequence is recognized by the U2 snRNP. The prespliceosome includes many proteins in addition to those found in the U1 and U2 snRNPs. Commitment to a given pair of 5' and 3' splice sites occurs at the time of prespliceosome formation.
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1 | P26369 (/ISO) |
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U2AF GO:0089701
A heterodimeric protein complex consisting of conserved large and small U2AF subunits that contributes to spliceosomal RNA splicing by binding to consensus sequences at the 3' splice site. U2AF is required to stabilize the association of the U2 snRNP with the branch point.
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1 | P26369 (/ISO) |
