STRINGSTRING
STRING protein interaction network
Nodes:
Network nodes represent proteins
splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
Node Color
colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
Node Content
empty nodes:
proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
Edges:
Edges represent protein-protein associations
associations are meant to be specific and meaningful, i.e. proteins jointly contribute to a shared function; this does not necessarily mean they are physically binding to each other.
Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
Your Input:
Neighborhood
Gene Fusion
Cooccurrence
Coexpression
Experiments
Databases
Textmining
[Homology]
Score
U2AProbable U2 small nuclear ribonucleoprotein A; Involved in pre-mRNA splicing as component of the spliceosome (By similarity). Associated with sn-RNP U2, where it contributes to the binding of stem loop IV of U2 snRNA (By similarity). In the germ line, has a role in oogenesis, by regulating spermatogenesis and nurse cell nuclei chromatin decondensation and dispersal, probably by regulating the splicing of proteins necessary for germline differentiation such as the meiotic protein mei-P26. Belongs to the U2 small nuclear ribonucleoprotein A family. (265 aa)    
Predicted Functional Partners:
snf
U1 small nuclear ribonucleoprotein A; Binds stem loop II of U1 snRNA. It is the first snRNP to interact with pre-mRNA. This interaction is required for the subsequent binding of U2 snRNP and the U4/U6/U5 tri-snRNP (By similarity). Plays a role in regulating sex-lethal splicing; Belongs to the RRM U1 A/B'' family.
   
 0.999
SmD3
Small ribonucleoprotein particle protein SmD3 (SmD3) encodes an RNA binding protein that forms a heterodimeric sub-complex with the product of SmB. They function as part of the heteroheptameric ring complex Sm core, which is involved in the formation of spliceosomal small nuclear RNPs (U1, U2, U4 and U5), which together catalyze pre-mRNA splicing. The product of SmD3 also has a function in germline specification, as it is required for localization of the product of osk to the posterior pole of the oocyte.
   
 0.998
Sf3b1
Splicing factor 3b subunit 1, isoform A; RNA binding; mRNA binding. It is involved in the biological process described with: spliceosomal complex assembly; mRNA splicing, via spliceosome.
   
 0.998
SmD2
Small ribonucleoprotein particle protein SmD2 (SmD2) encodes an RNA binding protein that forms a heterodimeric sub-complex with the product of SmD1. They function as part of the heteroheptameric ring complex Sm core, which is involved in the formation of spliceosomal small nuclear RNPs (U1, U2, U4 and U5), which together catalyze pre-mRNA splicing.
   
 0.997
SmF
Small ribonucleoprotein particle protein SmF (SmF) encodes an RNA binding protein that functions as part of a heteroheptameric ring structure called the Sm core. This complex binds to spliceosomal small nuclear RNAs (e.g. U1, U2, U4 and U5) and helps to carry out pre-mRNA splicing. It also forms a heterotrimeric sub-complex with the products of SmE and SNRPG.
   
 0.997
Sf3b3
Splicing factor 3B subunit 3; Involved in pre-mRNA splicing as a component of the splicing factor SF3B complex, a constituent of the spliceosome. SF3B complex is required for 'A' complex assembly formed by the stable binding of U2 snRNP to the branchpoint sequence (BPS) in pre-mRNA. Sequence independent binding of SF3A/SF3B complex upstream of the branch site is essential, it may anchor U2 snRNP to the pre-mRNA (By similarity). May also be involved in the assembly of the 'E' complex (By similarity). Belongs also to the minor U12-dependent spliceosome, which is involved in the splicing [...]
   
 0.996
SmD1
Small ribonucleoprotein particle protein SmD1 (SmD1) encodes an RNA binding protein that forms a heterodimeric sub-complex with the product of SmD2. They function as part of the heteroheptameric ring complex Sm core, which is involved in the formation of spliceosomal small nuclear RNPs (U1, U2, U4 and U5), which together catalyze pre-mRNA splicing.
   
 0.996
Sf3a1
Splicing factor 3a subunit 1; RNA binding. It is involved in the biological process described with: regulation of alternative mRNA splicing, via spliceosome; mRNA splicing, via spliceosome; mitotic cell cycle; spermatogenesis.
   
 0.996
SmB
Small ribonucleoprotein particle protein SmB (SmB) encodes an RNA binding protein that forms a heterodimeric sub-complex with the product of SmD3. They function as part of the heteroheptameric ring complex Sm core, which is involved in the formation of spliceosomal small nuclear RNPs (U1, U2, U4 and U5), which together catalyze pre-mRNA splicing; Belongs to the snRNP SmB/SmN family.
   
 0.996
snRNP-U1-70K
Small ribonucleoprotein particle U1 subunit 70K (snRNP-U1-70K) encodes a protein component of the U1 snRNP. The U1 snRNP combines with other snRNPs on the pre-mRNA to assemble a spliceosome.
   
 
 0.996
Your Current Organism:
Drosophila melanogaster
NCBI taxonomy Id: 7227
Other names: D. melanogaster, Diptera sp. DNAS-2A9-224646, Sophophora melanogaster, fruit fly
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