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torsdag 17 maj 2018

ESCRT-II, EAP45,(Kr.13q14.3), VPS36, C13orf9, CGI-148 , GLUE-domeeni

ESCRT-II

(EAP45 geenin virallinen nimi on VPS36) 

Also known as EAP45; C13orf9; CGI-145
Summary This gene encodes a protein that is a subunit of the endosomal sorting complex required for transport II (ESCRT-II). This protein complex functions in sorting of ubiquitinated membrane proteins during endocytosis. A similar protein complex in rat is associated with RNA polymerase elongation factor II. [provided by RefSeq, Aug 2013]
Expression Ubiquitous expression in skin (RPKM 25.0), thyroid (RPKM 15.1) and 25 other tissues See more

Preferred Names

vacuolar protein-sorting-associated protein 36
Names
ELL-associated protein of 45 kDa
ESCRT-II complex subunit VPS36

Conserved Domains (2) summary

cd13226
Location:1 → 119
PH-GRAM-like_Eap45; Pleckstrin homology-like domain or GLUE (GRAM-like ubiquitin-binding in Eap45) domain of Eap45
pfam04157
Location:146 → 360
EAP30; EAP30/Vps36 family

Peptide sequence

https://www.ncbi.nlm.nih.gov/protein/NP_001269098.1

Related articles in PubMed

  1. Structural basis for ubiquitin recognition by the human ESCRT-II EAP45 GLUE domain. Alam SL, et al. Nat Struct Mol Biol, 2006 Nov. PMID 17057716 Abstract The ESCRT-I and ESCRT-II complexes help sort ubiquitinated proteins into vesicles that accumulate within multivesicular bodies (MVBs). Crystallographic and biochemical analyses reveal that the GLUE domain of the human ESCRT-II EAP45 (also called VPS36) subunit is a split pleckstrin-homology domain that binds ubiquitin along one edge of the beta-sandwich. The structure suggests how human ESCRT-II can couple recognition of ubiquitinated cargoes and endosomal phospholipids during MVB protein sorting
  2. Evidence that the endosomal sorting complex required for transport-II (ESCRT-II) is required for efficient human immunodeficiency virus-1 (HIV-1) production. Meng B, et al. Retrovirology, 2015 Aug 14. PMID 26268989, Free PMC Article
See all (37) citations in PubMed
See citations in PubMed for homologs of this gene provided by HomoloGene

GeneRIFs: Gene References Into FunctionsWhat's a GeneRIF?

  1. Crystallographic and biochemical analyses reveal that the GLUE domain of the human ESCRT-II EAP45 (also called VPS36) subunit is a split pleckstrin-homology domain that binds ubiquitin along one edge of the beta-sandwich.

Eap45 in Mammalian ESCRT-II Binds Ubiquitin via a Phosphoinositide-interacting GLUE Domain*,

  • Thomas Slagsvold, Rein Aasland§, Department of Biochemistry, The Norwegian Radium Hospital, Montebello, N-0310 Oslo, Norway, the §Department of Molecular Biology, University of Bergen, HIB, N-5020 Bergen, Norway, and the Structural Biology Research Center, Photon Factory, IMSS, KEK, Tsukuba, Ibaraki 305-0801, Japan Abstract Ubiquitination serves as a key sorting signal in the lysosomal degradation of endocytosed receptors through the ability of ubiquitinated membrane proteins to be recognized and sorted by ubiquitin-binding proteins along the endocytic route. The ESCRT-II complex in yeast contains one such protein, Vps36, which harbors a ubiquitin-binding NZF domain* and is required for vacuolar sorting of ubiquitinated membrane proteins.


Surprisingly, the presumptive mammalian ortholog Eap45 lacks the ubiquitin-binding module of Vps36, and it is thus not clear whether mammalian ESCRT-II functions to bind ubiquitinated cargo. In this paper, we provide evidence that Eap45 contains a novel ubiquitin-binding domain, GLUE (GRAM-like ubiquitin-binding in Eap45), which binds ubiquitin with similar affinity and specificity as other ubiquitin-binding domains.**
The GLUE domain shares similarities in its primary and predicted secondary structures to phosphoinositide-binding GRAM and PH domains


Accordingly, we find that Eap45 binds to a subset of 3-phosphoinositides, suggesting that ubiquitin recognition could be coordinated with phosphoinositide binding.
Furthermore, we show that Eap45 colocalizes with ubiquitinated proteins on late endosomes. These results are consistent with a role for Eap45 in endosomal sorting of ubiquitinated cargo. Received February 9, 2005. Revision received March 7, 2005. The American Society for Biochemistry and Molecular Biology, Inc.

Muistiin 17.5. 2018













ESCRT-II, EAP20, (Kr.17q21.2), VPS25, DERP9, FAP20

ESCRT-II

( EAP20  geenin virallinen nimi on nyt VPS25)

Vacuolar protein sorting 25, human
https://www.ncbi.nlm.nih.gov/gene/84313
Also known as DERP9; EAP20; FAP20
Summary This gene encodes a protein that is a subunit of the endosomal sorting complex required for transport II (ESCRT-II). This protein complex functions in sorting of ubiquitinated membrane proteins during endocytosis. A pseudogene of this gene is present on chromosome 1. [provided by RefSeq, Jul 2013]
Expression Ubiquitous expression in esophagus (RPKM 14.2), colon (RPKM 12.6) and 25 other tissues See more
Orthologs mouse all

Preferred Names

vacuolar protein-sorting-associated protein 25
Names
ELL-associated protein of 20 kDa
ESCRT-II complex subunit VPS25
dermal papilla-derived protein 9
https://www.cell.com/cms/attachment/2119039383/2088388025/gr2.jpg

Conserved Domains (1) summary

pfam05871
Location:10 → 145 ESCRT-II; ESCRT-II complex subunit

Peptide sequence

vacuolar protein-sorting-associated protein 25 [Homo sapiens]
NCBI Reference Sequence: NP_115729.1

Related articles in PubMed

  1. Evidence that the endosomal sorting complex required for transport-II (ESCRT-II) is required for efficient human immunodeficiency virus-1 (HIV-1) production. Meng B, et al. Retrovirology, 2015 Aug 14. PMID 26268989, Free PMC Article
See all (35) citations in PubMed
See citations in PubMed for homologs of this gene provided by HomoloGene

GeneRIFs: Gene References Into FunctionsWhat's a GeneRIF?

  1. mammalian ESCRTII is made up of hVps25p, hVps22p, and hVps36p and may be redundant, cargo-specific, or not required for protein sorting at the multivesicular body
Muistiin 17.5. 2018

ESCRT-II , EAP30 (Kr.17q21.32), VPS22, SNF8, Dot3

ESCRT-II Complex EAP30
 Geenin viralliseksi nimeksi on päätetty SNF8.

Also known as
Dot3; EAP30; VPS22
Summary The protein encoded by this gene is a component of the endosomal sorting complex required for transport II (ESCRT-II), which regulates the movement of ubiquitinylated transmembrane proteins to the lysosome for degradation. This complex also interacts with the RNA polymerase II elongation factor (ELL) to overcome the repressive effects of ELL on RNA polymerase II activity. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2015] Expression
Ubiquitous expression in kidney (RPKM 18.5), fat (RPKM 18.4) and 25 other tissues See more Orthologs mouse all

Preferred Names

vacuolar-sorting protein SNF8
Names
EAP30 subunit of ELL complex
ELL-associated protein of 30 kDa
ESCRT-II complex subunit VPS22
SNF8, ESCRT-II complex subunit, homolog
EAP30/Vps36 family

This family includes EAP30 as well as the Vps36 protein. Vps36 is involved in Golgi to endosome trafficking. EAP30 is a subunit of the ELL complex. The ELL is an 80-kDa RNA polymerase II transcription factor. ELL interacts with three other proteins to form the complex known as ELL complex. The ELL complex is capable of increasing that catalytic rate of transcription elongation, but is unable to repress initiation of transcription by RNA polymerase II as is the case of ELL. EAP30 is thought to lead to the derepression of ELL's transcriptional inhibitory activity.

Peptide sequence

Related articles in PubMed

  1. Differential functions of Hrs and ESCRT proteins in endocytic membrane trafficking. Raiborg C, et al. Exp Cell Res, 2008 Feb 15. PMID 18031739
  2. RILP interacts with the VPS22 component of the ESCRT-II complex. Progida C, et al. Biochem Biophys Res Commun, 2006 Sep 8. PMID 16857164
See all (46) citations in PubMed
See citations in PubMed for homologs of this gene provided by HomoloGene

GeneRIFs: Gene References Into FunctionsWhat's a GeneRIF?

  1. there are probably multiple pathways for protein sorting/multivesicular body vesicle formation in human cells and that human immunodeficiency virus type 1 does not utilize an ESCRT-II-dependent pathway to leave the cell