| Type |
Details |
Score |
| Protein Domain |
| Type: |
Homologous_superfamily |
| Description: |
The signal recognition particle (SRP) is a multimeric protein, which along with its conjugate receptor (SR), is involved in targeting secretory proteins to the rough endoplasmic reticulum (RER) membrane in eukaryotes, or to the plasma membrane in prokaryotes [, ]. SRP recognises the signal sequence of the nascent polypeptide on the ribosome. In eukaryotes this retards its elongation until SRP docks the ribosome-polypeptide complex to the RER membrane via the SR receptor []. Eukaryotic SRP consists of six polypeptides (SRP9, SRP14, SRP19, SRP54, SRP68 and SRP72) and a single 300 nucleotide 7S RNA molecule. The RNA component catalyses the interaction of SRP with its SR receptor []. In higher eukaryotes, the SRP complex consists of the Alu domain and the S domain linked by the SRP RNA. The Alu domain consists of a heterodimer of SRP9 and SRP14 bound to the 5' and 3' terminal sequences of SRP RNA. This domain is necessary for retarding the elongation of the nascent polypeptide chain, which gives SRP time to dock the ribosome-polypeptide complex to the RER membrane. In archaea, the SRP complex contains 7S RNA like its eukaryotic counterpart, yet only includes two of the six protein subunits found in the eukarytic complex: SRP19 and SRP54 [].This superfamily represents both the 9kDa SRP9 and the 14kDa SRP14 components. Both SRP9 and SRP14 have the same (beta)-α-β(3)-alpha fold. The heterodimer has pseudo two-fold symmetry and is saddle-like, consisting of a curved six-stranded β-sheet that has four helices packed on the convex side and an exposed concave surface lined with positively charged residues. The SRP9/SRP14 heterodimer is essential for SRP RNA binding, mediating the pausing of synthesis of ribosome associated nascent polypeptides that have been engaged by the targeting domain of SRP []. |
|
•
•
•
•
•
|
| Protein Domain |
| Type: |
Domain |
| Description: |
The signal recognition particle (SRP) is a multimeric protein, which along with its conjugate receptor (SR), is involved in targeting secretory proteins to the rough endoplasmic reticulum (RER) membrane in eukaryotes, or to the plasma membrane in prokaryotes [, ]. SRP recognises the signal sequence of the nascent polypeptide on the ribosome. In eukaryotes this retards its elongation until SRP docks the ribosome-polypeptide complex to the RER membrane via the SR receptor []. Eukaryotic SRP consists of six polypeptides (SRP9, SRP14, SRP19, SRP54, SRP68 and SRP72) and a single 300 nucleotide 7S RNA molecule. The RNA component catalyses the interaction of SRP with its SR receptor []. In higher eukaryotes, the SRP complex consists of the Alu domain and the S domain linked by the SRP RNA. The Alu domain consists of a heterodimer of SRP9 and SRP14 bound to the 5' and 3' terminal sequences of SRP RNA. This domain is necessary for retarding the elongation of the nascent polypeptide chain, which gives SRP time to dock the ribosome-polypeptide complex to the RER membrane. In archaea, the SRP complex contains 7S RNA like its eukaryotic counterpart, yet only includes two of the six protein subunits found in the eukarytic complex: SRP19 and SRP54 [].The SR receptor is a monomer consisting of the loosely membrane-associated SR-alpha homologue FtsY, while the eukaryotic SR receptor is a heterodimer of SR-alpha (70kDa) and SR-beta (25kDa), both of which contain a GTP-binding domain []. SR-alpha regulates the targeting of SRP-ribosome-nascent polypeptide complexes to the translocon []. SR-alpha binds to the SRP54 subunit of the SRP complex. The SR-beta subunit is a transmembrane GTPase that anchors the SR-alpha subunit (a peripheral membrane GTPase) to the ER membrane []. SR-beta interacts with the N-terminal SRX-domain of SR-alpha, which is not present in the bacterial FtsY homologue. SR-beta also functions in recruiting the SRP-nascent polypeptide to the protein-conducting channel. This entry represents the alpha subunit of the SR receptor. |
|
•
•
•
•
•
|
| Protein Domain |
| Type: |
Family |
| Description: |
The signal recognition particle (SRP) is a multimeric protein, which along with its conjugate receptor (SR), is involved in targeting secretory proteins to the rough endoplasmic reticulum (RER) membrane in eukaryotes, or to the plasma membrane in prokaryotes [, ]. SRP recognises the signal sequence of the nascent polypeptide on the ribosome. In eukaryotes this retards its elongation until SRP docks the ribosome-polypeptide complex to the RER membrane via the SR receptor []. Eukaryotic SRP consists of six polypeptides (SRP9, SRP14, SRP19, SRP54, SRP68 and SRP72) and a single 300 nucleotide 7S RNA molecule. The RNA component catalyses the interaction of SRP with its SR receptor []. In higher eukaryotes, the SRP complex consists of the Alu domain and the S domain linked by the SRP RNA. The Alu domain consists of a heterodimer of SRP9 and SRP14 bound to the 5' and 3' terminal sequences of SRP RNA. This domain is necessary for retarding the elongation of the nascent polypeptide chain, which gives SRP time to dock the ribosome-polypeptide complex to the RER membrane. In archaea, the SRP complex contains 7S RNA like its eukaryotic counterpart, yet only includes two of the six protein subunits found in the eukarytic complex: SRP19 and SRP54 [].This entry represents the 54kDa SRP54 component, a GTP-binding protein that interacts with the signal sequence when it emerges from the ribosome. SRP54 of the signal recognition particle has a three-domain structure: an N-terminal helical bundle domain, a GTPase domain, and the M-domain that binds the 7s RNA and also binds the signal sequence. The extreme C-terminal region is glycine-rich and lower in complexity and poorly conserved between species. |
|
•
•
•
•
•
|
| Protein Domain |
| Type: |
Family |
| Description: |
The signal recognition particle (SRP) is a multimeric protein, which along with its conjugate receptor (SR), is involved in targeting secretory proteins to the rough endoplasmic reticulum (RER) membrane in eukaryotes, or to the plasma membrane in prokaryotes [, ]. SRP recognises the signal sequence of the nascent polypeptide on the ribosome. In eukaryotes this retards its elongation until SRP docks the ribosome-polypeptide complex to the RER membrane via the SR receptor []. Eukaryotic SRP consists of six polypeptides (SRP9, SRP14, SRP19, SRP54, SRP68 and SRP72) and a single 300 nucleotide 7S RNA molecule. The RNA component catalyses the interaction of SRP with its SR receptor []. In higher eukaryotes, the SRP complex consists of the Alu domain and the S domain linked by the SRP RNA. The Alu domain consists of a heterodimer of SRP9 and SRP14 bound to the 5' and 3' terminal sequences of SRP RNA. This domain is necessary for retarding the elongation of the nascent polypeptide chain, which gives SRP time to dock the ribosome-polypeptide complex to the RER membrane. In archaea, the SRP complex contains 7S RNA like its eukaryotic counterpart, yet only includes two of the six protein subunits found in the eukarytic complex: SRP19 and SRP54 [].This entry represents the 14kDa SRP14 component. Both SRP9 and SRP14 have the same (beta)-α-β(3)-alpha fold. The heterodimer has pseudo two-fold symmetry and is saddle-like, consisting of a curved six-stranded β-sheet that has four helices packed on the convex side and an exposed concave surface lined with positively charged residues. The SRP9/SRP14 heterodimer is essential for SRP RNA binding, mediating the pausing of synthesis of ribosome associated nascent polypeptides that have been engaged by the targeting domain of SRP []. |
|
•
•
•
•
•
|
| Protein Domain |
| Type: |
Family |
| Description: |
The signal recognition particle (SRP) is a multimeric protein, which along with its conjugate receptor (SR), is involved in targeting secretory proteins to the rough endoplasmic reticulum (RER) membrane in eukaryotes, or to the plasma membrane in prokaryotes [, ]. SRP recognises the signal sequence of the nascent polypeptide on the ribosome. In eukaryotes this retards its elongation until SRP docks the ribosome-polypeptide complex to the RER membrane via the SR receptor []. Eukaryotic SRP consists of six polypeptides (SRP9, SRP14, SRP19, SRP54, SRP68 and SRP72) and a single 300 nucleotide 7S RNA molecule. The RNA component catalyses the interaction of SRP with its SR receptor []. In higher eukaryotes, the SRP complex consists of the Alu domain and the S domain linked by the SRP RNA. The Alu domain consists of a heterodimer of SRP9 and SRP14 bound to the 5' and 3' terminal sequences of SRP RNA. This domain is necessary for retarding the elongation of the nascent polypeptide chain, which gives SRP time to dock the ribosome-polypeptide complex to the RER membrane. In archaea, the SRP complex contains 7S RNA like its eukaryotic counterpart, yet only includes two of the six protein subunits found in the eukarytic complex: SRP19 and SRP54 [].This entry represents the 9kDa SRP9 component. Both SRP9 and SRP14 have the same (beta)-α-β(3)-alpha fold. The heterodimer has pseudo two-fold symmetry and is saddle-like, consisting of a curved six-stranded β-sheet that has four helices packed on the convex side and an exposed concave surface lined with positively charged residues. The SRP9/SRP14 heterodimer is essential for SRP RNA binding, mediating the pausing of synthesis of ribosome associated nascent polypeptides that have been engaged by the targeting domain of SRP []. |
|
•
•
•
•
•
|
| Protein |
| Organism: |
Mus musculus/domesticus |
| Length: |
63
 |
| Fragment?: |
false |
|
•
•
•
•
•
|
| Publication |
| First Author: |
Althoff S |
| Year: |
1994 |
| Journal: |
Nucleic Acids Res |
| Title: |
Molecular evolution of SRP cycle components: functional implications. |
| Volume: |
22 |
| Issue: |
11 |
| Pages: |
1933-47 |
|
•
•
•
•
•
|
| Protein Domain |
| Type: |
Domain |
| Description: |
The signal recognition particle (SRP) is a multimeric protein, which along with its conjugate receptor (SR), is involved in targeting secretory proteins to the rough endoplasmic reticulum (RER) membrane in eukaryotes, or to the plasma membrane in prokaryotes [, ]. SRP recognises the signal sequence of the nascent polypeptide on the ribosome. In eukaryotes this retards its elongation until SRP docks the ribosome-polypeptide complex to the RER membrane via the SR receptor []. Eukaryotic SRP consists of six polypeptides (SRP9, SRP14, SRP19, SRP54, SRP68 and SRP72) and a single 300 nucleotide 7S RNA molecule. The RNA component catalyses the interaction of SRP with its SR receptor []. In higher eukaryotes, the SRP complex consists of the Alu domain and the S domain linked by the SRP RNA. The Alu domain consists of a heterodimer of SRP9 and SRP14 bound to the 5' and 3' terminal sequences of SRP RNA. This domain is necessary for retarding the elongation of the nascent polypeptide chain, which gives SRP time to dock the ribosome-polypeptide complex to the RER membrane. In archaea, the SRP complex contains 7S RNA like its eukaryotic counterpart, yet only includes two of the six protein subunits found in the eukarytic complex: SRP19 and SRP54 [].This entry represents the M domain of the 54kDa SRP54 component, a GTP-binding protein that interacts with the signal sequence when it emerges from the ribosome. SRP54 of the signal recognition particle has a three-domain structure: an N-terminal helical bundle domain, a GTPase domain, and the M-domain that binds the 7s RNA and also binds the signal sequence. The extreme C-terminal region is glycine-rich and lower in complexity and poorly conserved between species.These proteins include Escherichia coli and Bacillus subtilis ffh protein (P48), which seems to be the prokaryotic counterpart of SRP54; signal recognition particle receptor alpha subunit (docking protein), an integral membrane GTP-binding protein which ensures, in conjunction with SRP, the correct targeting of nascent secretory proteins to the endoplasmic reticulum membrane; bacterial FtsY protein, which is believed to play a similar role to that of the docking protein in eukaryotes; the pilA protein from Neisseria gonorrhoeae, the homologue of ftsY; and bacterial flagellar biosynthesis protein flhF. |
|
•
•
•
•
•
|
| Protein Domain |
| Type: |
Domain |
| Description: |
The signal recognition particle (SRP) is a multimeric protein, which along with its conjugate receptor (SR), is involved in targeting secretory proteins to the rough endoplasmic reticulum (RER) membrane in eukaryotes, or to the plasma membrane in prokaryotes [, ]. SRP recognises the signal sequence of the nascent polypeptide on the ribosome. In eukaryotes this retards its elongation until SRP docks the ribosome-polypeptide complex to the RER membrane via the SR receptor []. Eukaryotic SRP consists of six polypeptides (SRP9, SRP14, SRP19, SRP54, SRP68 and SRP72) and a single 300 nucleotide 7S RNA molecule. The RNA component catalyses the interaction of SRP with its SR receptor []. In higher eukaryotes, the SRP complex consists of the Alu domain and the S domain linked by the SRP RNA. The Alu domain consists of a heterodimer of SRP9 and SRP14 bound to the 5' and 3' terminal sequences of SRP RNA. This domain is necessary for retarding the elongation of the nascent polypeptide chain, which gives SRP time to dock the ribosome-polypeptide complex to the RER membrane. In archaea, the SRP complex contains 7S RNA like its eukaryotic counterpart, yet only includes two of the six protein subunits found in the eukarytic complex: SRP19 and SRP54 [].This entry represents the GTPase domain of the 54kDa SRP54 component, a GTP-binding protein that interacts with the signal sequence when it emerges from the ribosome. SRP54 of the signal recognition particle has a three-domain structure: an N-terminal helical bundle domain, a GTPase domain, and the M-domain that binds the 7s RNA and also binds the signal sequence. The extreme C-terminal region is glycine-rich and lower in complexity and poorly conserved between species. The GTPase domain is evolutionary related to P-loop NTPase domains found in a variety of other proteins [].These proteins include Escherichia coli and Bacillus subtilis ffh protein (P48), which seems to be the prokaryotic counterpart of SRP54; signal recognition particle receptor alpha subunit (docking protein), an integral membrane GTP-binding protein which ensures, in conjunction with SRP, the correct targeting of nascent secretory proteins to the endoplasmic reticulum membrane; bacterial FtsY protein, which is believed to play a similar role to that of the docking protein in eukaryotes; the pilA protein from Neisseria gonorrhoeae, the homologue of ftsY; and bacterial flagellar biosynthesis protein flhF. |
|
•
•
•
•
•
|
| Protein Domain |
| Type: |
Homologous_superfamily |
| Description: |
The signal recognition particle (SRP) is a multimeric protein, which along with its conjugate receptor (SR), is involved in targeting secretory proteins to the rough endoplasmic reticulum (RER) membrane in eukaryotes, or to the plasma membrane in prokaryotes [, ]. SRP recognises the signal sequence of the nascent polypeptide on the ribosome. In eukaryotes this retards its elongation until SRP docks the ribosome-polypeptide complex to the RER membrane via the SR receptor []. Eukaryotic SRP consists of six polypeptides (SRP9, SRP14, SRP19, SRP54, SRP68 and SRP72) and a single 300 nucleotide 7S RNA molecule. The RNA component catalyses the interaction of SRP with its SR receptor []. In higher eukaryotes, the SRP complex consists of the Alu domain and the S domain linked by the SRP RNA. The Alu domain consists of a heterodimer of SRP9 and SRP14 bound to the 5' and 3' terminal sequences of SRP RNA. This domain is necessary for retarding the elongation of the nascent polypeptide chain, which gives SRP time to dock the ribosome-polypeptide complex to the RER membrane. In archaea, the SRP complex contains 7S RNA like its eukaryotic counterpart, yet only includes two of the six protein subunits found in the eukarytic complex: SRP19 and SRP54 [].This entry represents the M domain superfamily of the 54kDa SRP54 component, a GTP-binding protein that interacts with the signal sequence when it emerges from the ribosome. SRP54 of the signal recognition particle has a three-domain structure: an N-terminal helical bundle domain, a GTPase domain, and the M-domain that binds the 7s RNA and also binds the signal sequence. The extreme C-terminal region is glycine-rich and lower in complexity and poorly conserved between species.These proteins include Escherichia coli and Bacillus subtilis ffh protein (P48), which seems to be the prokaryotic counterpart of SRP54; signal recognition particle receptor alpha subunit (docking protein), an integral membrane GTP-binding protein which ensures, in conjunction with SRP, the correct targeting of nascent secretory proteins to the endoplasmic reticulum membrane; bacterial FtsY protein, which is believed to play a similar role to that of the docking protein in eukaryotes; the pilA protein from Neisseria gonorrhoeae, the homologue of ftsY; and bacterial flagellar biosynthesis protein flhF. |
|
•
•
•
•
•
|
| Protein Domain |
| Type: |
Family |
| Description: |
The signal recognition particle (SRP) is a multimeric protein, which along with its conjugate receptor (SR), is involved in targeting secretory proteins to the rough endoplasmic reticulum (RER) membrane in eukaryotes, or to the plasma membrane in prokaryotes [, ]. SRP recognises the signal sequence of the nascent polypeptide on the ribosome. In eukaryotes this retards its elongation until SRP docks the ribosome-polypeptide complex to the RER membrane via the SR receptor []. Eukaryotic SRP consists of six polypeptides (SRP9, SRP14, SRP19, SRP54, SRP68 and SRP72) and a single 300 nucleotide 7S RNA molecule. The RNA component catalyses the interaction of SRP with its SR receptor []. In higher eukaryotes, the SRP complex consists of the Alu domain and the S domain linked by the SRP RNA. The Alu domain consists of a heterodimer of SRP9 and SRP14 bound to the 5' and 3' terminal sequences of SRP RNA. This domain is necessary for retarding the elongation of the nascent polypeptide chain, which gives SRP time to dock the ribosome-polypeptide complex to the RER membrane. In archaea, the SRP complex contains 7S RNA like its eukaryotic counterpart, yet only includes two of the six protein subunits found in the eukarytic complex: SRP19 and SRP54 [].The SR receptor is a monomer consisting of the loosely membrane-associated SR-alpha homologue FtsY, while the eukaryotic SR receptor is a heterodimer of SR-alpha (70kDa) and SR-beta (25kDa), both of which contain a GTP-binding domain []. SR-alpha regulates the targeting of SRP-ribosome-nascent polypeptide complexes to the translocon []. SR-alpha binds to the SRP54 subunit of the SRP complex. The SR-beta subunit is a transmembrane GTPase that anchors the SR-alpha subunit (a peripheral membrane GTPase) to the ER membrane []. SR-beta interacts with the N-terminal SRX-domain of SR-alpha, which is not present in the bacterial FtsY homologue. SR-beta also functions in recruiting the SRP-nascent polypeptide to the protein-conducting channel. The beta subunit of the signal recognition particle receptor (SRP) is a transmembrane GTPase, which anchors the alpha subunit to the endoplasmic reticulum membrane []. |
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•
•
•
•
•
|
| Publication |
| First Author: |
Miller JD |
| Year: |
1995 |
| Journal: |
J Cell Biol |
| Title: |
The beta subunit of the signal recognition particle receptor is a transmembrane GTPase that anchors the alpha subunit, a peripheral membrane GTPase, to the endoplasmic reticulum membrane. |
| Volume: |
128 |
| Issue: |
3 |
| Pages: |
273-82 |
|
•
•
•
•
•
|
| Publication |
| First Author: |
Schwartz T |
| Year: |
2003 |
| Journal: |
Cell |
| Title: |
Structural basis for the function of the beta subunit of the eukaryotic signal recognition particle receptor. |
| Volume: |
112 |
| Issue: |
6 |
| Pages: |
793-803 |
|
•
•
•
•
•
|
| Publication |
| First Author: |
Legate KR |
| Year: |
2000 |
| Journal: |
J Biol Chem |
| Title: |
Nucleotide-dependent binding of the GTPase domain of the signal recognition particle receptor beta-subunit to the alpha-subunit. |
| Volume: |
275 |
| Issue: |
35 |
| Pages: |
27439-46 |
|
•
•
•
•
•
|
| Protein |
| Organism: |
Mus musculus/domesticus |
| Length: |
504
|
| Fragment?: |
false |
|
•
•
•
•
•
|
| Protein |
| Organism: |
Mus musculus/domesticus |
| Length: |
504
|
| Fragment?: |
false |
|
•
•
•
•
•
|
| Protein |
| Organism: |
Mus musculus/domesticus |
| Length: |
500
|
| Fragment?: |
false |
|
•
•
•
•
•
|
| Protein |
| Organism: |
Mus musculus/domesticus |
| Length: |
502
|
| Fragment?: |
false |
|
•
•
•
•
•
|
| Protein |
| Organism: |
Mus musculus/domesticus |
| Length: |
269
|
| Fragment?: |
false |
|
•
•
•
•
•
|
| Protein |
| Organism: |
Mus musculus/domesticus |
| Length: |
153
|
| Fragment?: |
true |
|
•
•
•
•
•
|
| Protein |
| Organism: |
Mus musculus/domesticus |
| Length: |
269
|
| Fragment?: |
false |
|
•
•
•
•
•
|
| Protein |
| Organism: |
Mus musculus/domesticus |
| Length: |
161
|
| Fragment?: |
true |
|
•
•
•
•
•
|
| Protein |
| Organism: |
Mus musculus/domesticus |
| Length: |
110
|
| Fragment?: |
true |
|
•
•
•
•
•
|
| Protein |
| Organism: |
Mus musculus/domesticus |
| Length: |
54
|
| Fragment?: |
true |
|
•
•
•
•
•
|
| Protein |
| Organism: |
Mus musculus/domesticus |
| Length: |
89
|
| Fragment?: |
true |
|
•
•
•
•
•
|
| Protein |
| Organism: |
Mus musculus/domesticus |
| Length: |
636
|
| Fragment?: |
false |
|
•
•
•
•
•
|
| Protein |
| Organism: |
Mus musculus/domesticus |
| Length: |
610
|
| Fragment?: |
false |
|
•
•
•
•
•
|
| Protein |
| Organism: |
Mus musculus/domesticus |
| Length: |
671
|
| Fragment?: |
false |
|
•
•
•
•
•
|
| Publication |
| First Author: |
Carninci P |
| Year: |
2000 |
| Journal: |
Genome Res |
| Title: |
Normalization and subtraction of cap-trapper-selected cDNAs to prepare full-length cDNA libraries for rapid discovery of new genes. |
| Volume: |
10 |
| Issue: |
10 |
| Pages: |
1617-30 |
|
•
•
•
•
•
|
| Publication |
| First Author: |
Carninci P |
| Year: |
1999 |
| Journal: |
Methods Enzymol |
| Title: |
High-efficiency full-length cDNA cloning. |
| Volume: |
303 |
|
| Pages: |
19-44 |
|
•
•
•
•
•
|
| Publication |
| First Author: |
Shibata K |
| Year: |
2000 |
| Journal: |
Genome Res |
| Title: |
RIKEN integrated sequence analysis (RISA) system--384-format sequencing pipeline with 384 multicapillary sequencer. |
| Volume: |
10 |
| Issue: |
11 |
| Pages: |
1757-71 |
|
•
•
•
•
•
|
| Publication |
| First Author: |
Katayama S |
| Year: |
2005 |
| Journal: |
Science |
| Title: |
Antisense transcription in the mammalian transcriptome. |
| Volume: |
309 |
| Issue: |
5740 |
| Pages: |
1564-6 |
|
•
•
•
•
•
|
| Publication |
| First Author: |
Gerhard DS |
| Year: |
2004 |
| Journal: |
Genome Res |
| Title: |
The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). |
| Volume: |
14 |
| Issue: |
10B |
| Pages: |
2121-7 |
|
•
•
•
•
•
|
| Publication |
| First Author: |
Huttlin EL |
| Year: |
2010 |
| Journal: |
Cell |
| Title: |
A tissue-specific atlas of mouse protein phosphorylation and expression. |
| Volume: |
143 |
| Issue: |
7 |
| Pages: |
1174-89 |
|
•
•
•
•
•
|
| Publication |
| First Author: |
Church DM |
| Year: |
2009 |
| Journal: |
PLoS Biol |
| Title: |
Lineage-specific biology revealed by a finished genome assembly of the mouse. |
| Volume: |
7 |
| Issue: |
5 |
| Pages: |
e1000112 |
|
•
•
•
•
•
|
