HAMAP rule MF_00869

General rule information [?]

Accession	MF_00869
Dates	6-FEB-2023 (Created) 7-FEB-2023 (Last updated, Version 2)
Name	Fusexin-1
Scope(s)	Bacteria Archaea
Template(s)	C0HM55 (FSX1_UNCAX); [ Recover all ]
Triggered by	HAMAP; MF_00869 (Get profile general information and statistics)

Propagated annotation [?]

Identifier, protein and gene names [?]

Identifier	FSX1
Protein name	RecName: Full=Fusexin 1; Short=Fsx1;
Gene name	Name=fsx1;

Comments [?]

FUNCTION	Exhibits fusogenic activity, mediates cell-cell fusion when present in both cells (bilateral fusion).
SUBUNIT	Homotrimer stabilized by interdomain contacts and numerous Ca(2+) and Na(+) ions.
SUBCELLULAR LOCATION	Cell surface. Cell membrane; multi-pass membrane protein.
DOMAIN	The extracellular N-terminus has 4 domains; the first 3 are structurally similar to fusogens from plants, C.elegans and viruses, while the fourth domain is unique to archaea. Domains I and II are discontinuous. The fusion loop in domain II is stabilized by a Ca(2+) ion so that it protrudes from the molecule.
SIMILARITY	Belongs to the HAP2/GCS1 family. Fusexin 1 subfamily.

Keywords [?]

Gene Ontology [?]

GO:0005886; Cellular component:plasma membrane

GO:0045026; Biological process:plasma membrane fusion

Cross-references [?]

Features [?]

From: FSX1_UNCAX (C0HM55)

Key

From

Description

Tag

Condition

FTGroup

REGION

143

148

/note="Fusion loop"

DISULFID

125

155

C-x*-C

DISULFID

389

432

C-x*-C

DISULFID

457

477

C-x*-C

DISULFID

490

506

C-x*-C

Additional information [?]