4HW9

Crystal Structure of Helicobacter pylori MscS (Closed State)

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	MS_channel_2nd	e4hw9A3	A: beta barrels	X: SH3	H: SH3	T: SH3	F: MS_channel_2nd	ECOD (1.6)
A	MS_channel_1st	e4hw9A2	A: alpha bundles	X: Mechanosensitive channel protein MscS (YggB), transmembrane region (From Topology)	H: Mechanosensitive channel protein MscS (YggB), transmembrane region (From Topology)	T: Mechanosensitive channel protein MscS (YggB), transmembrane region	F: MS_channel_1st	ECOD (1.6)
A	MS_channel_3rd	e4hw9A1	A: a+b two layers	X: Alpha-beta plaits	H: Mechanosensitive channel protein MscS (YggB), C-terminal domain (From Topology)	T: Mechanosensitive channel protein MscS (YggB), C-terminal domain	F: MS_channel_3rd	ECOD (1.6)
B	MS_channel_2nd	e4hw9B4	A: beta barrels	X: SH3	H: SH3	T: SH3	F: MS_channel_2nd	ECOD (1.6)
B	MS_channel_1st	e4hw9B5	A: alpha bundles	X: Mechanosensitive channel protein MscS (YggB), transmembrane region (From Topology)	H: Mechanosensitive channel protein MscS (YggB), transmembrane region (From Topology)	T: Mechanosensitive channel protein MscS (YggB), transmembrane region	F: MS_channel_1st	ECOD (1.6)
B	MS_channel_3rd	e4hw9B6	A: a+b two layers	X: Alpha-beta plaits	H: Mechanosensitive channel protein MscS (YggB), C-terminal domain (From Topology)	T: Mechanosensitive channel protein MscS (YggB), C-terminal domain	F: MS_channel_3rd	ECOD (1.6)
C	MS_channel_2nd	e4hw9C7	A: beta barrels	X: SH3	H: SH3	T: SH3	F: MS_channel_2nd	ECOD (1.6)
C	MS_channel_1st	e4hw9C8	A: alpha bundles	X: Mechanosensitive channel protein MscS (YggB), transmembrane region (From Topology)	H: Mechanosensitive channel protein MscS (YggB), transmembrane region (From Topology)	T: Mechanosensitive channel protein MscS (YggB), transmembrane region	F: MS_channel_1st	ECOD (1.6)
C	MS_channel_3rd	e4hw9C9	A: a+b two layers	X: Alpha-beta plaits	H: Mechanosensitive channel protein MscS (YggB), C-terminal domain (From Topology)	T: Mechanosensitive channel protein MscS (YggB), C-terminal domain	F: MS_channel_3rd	ECOD (1.6)
D	MS_channel_2nd	e4hw9D7	A: beta barrels	X: SH3	H: SH3	T: SH3	F: MS_channel_2nd	ECOD (1.6)
D	MS_channel_1st	e4hw9D8	A: alpha bundles	X: Mechanosensitive channel protein MscS (YggB), transmembrane region (From Topology)	H: Mechanosensitive channel protein MscS (YggB), transmembrane region (From Topology)	T: Mechanosensitive channel protein MscS (YggB), transmembrane region	F: MS_channel_1st	ECOD (1.6)
D	MS_channel_3rd	e4hw9D9	A: a+b two layers	X: Alpha-beta plaits	H: Mechanosensitive channel protein MscS (YggB), C-terminal domain (From Topology)	T: Mechanosensitive channel protein MscS (YggB), C-terminal domain	F: MS_channel_3rd	ECOD (1.6)
E	MS_channel_2nd	e4hw9E7	A: beta barrels	X: SH3	H: SH3	T: SH3	F: MS_channel_2nd	ECOD (1.6)
E	MS_channel_1st	e4hw9E8	A: alpha bundles	X: Mechanosensitive channel protein MscS (YggB), transmembrane region (From Topology)	H: Mechanosensitive channel protein MscS (YggB), transmembrane region (From Topology)	T: Mechanosensitive channel protein MscS (YggB), transmembrane region	F: MS_channel_1st	ECOD (1.6)
E	MS_channel_3rd	e4hw9E9	A: a+b two layers	X: Alpha-beta plaits	H: Mechanosensitive channel protein MscS (YggB), C-terminal domain (From Topology)	T: Mechanosensitive channel protein MscS (YggB), C-terminal domain	F: MS_channel_3rd	ECOD (1.6)
F	MS_channel_2nd	e4hw9F7	A: beta barrels	X: SH3	H: SH3	T: SH3	F: MS_channel_2nd	ECOD (1.6)
F	MS_channel_1st	e4hw9F8	A: alpha bundles	X: Mechanosensitive channel protein MscS (YggB), transmembrane region (From Topology)	H: Mechanosensitive channel protein MscS (YggB), transmembrane region (From Topology)	T: Mechanosensitive channel protein MscS (YggB), transmembrane region	F: MS_channel_1st	ECOD (1.6)
F	MS_channel_3rd	e4hw9F9	A: a+b two layers	X: Alpha-beta plaits	H: Mechanosensitive channel protein MscS (YggB), C-terminal domain (From Topology)	T: Mechanosensitive channel protein MscS (YggB), C-terminal domain	F: MS_channel_3rd	ECOD (1.6)
G	MS_channel_2nd	e4hw9G7	A: beta barrels	X: SH3	H: SH3	T: SH3	F: MS_channel_2nd	ECOD (1.6)
G	MS_channel_1st	e4hw9G8	A: alpha bundles	X: Mechanosensitive channel protein MscS (YggB), transmembrane region (From Topology)	H: Mechanosensitive channel protein MscS (YggB), transmembrane region (From Topology)	T: Mechanosensitive channel protein MscS (YggB), transmembrane region	F: MS_channel_1st	ECOD (1.6)
G	MS_channel_3rd	e4hw9G9	A: a+b two layers	X: Alpha-beta plaits	H: Mechanosensitive channel protein MscS (YggB), C-terminal domain (From Topology)	T: Mechanosensitive channel protein MscS (YggB), C-terminal domain	F: MS_channel_3rd	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F, G	PF00924	Mechanosensitive ion channel, beta-domain (MS_channel_2nd)	Mechanosensitive ion channel, beta-domain	This entry includes small conductance mechanosensitive channels (MscS), which assembles to a homoheptameric complex [1-6]. Each monomer consists of a N-terminal transmembrane region and a large cytoplasmic segment composed of a five-stranded antipara ...	This entry includes small conductance mechanosensitive channels (MscS), which assembles to a homoheptameric complex [1-6]. Each monomer consists of a N-terminal transmembrane region and a large cytoplasmic segment composed of a five-stranded antiparallel beta-sheet (middle/second) domain and a C-terminal alpha/beta-domain [4-7]. This is the beta domain which adopts a SH3-like barrel structure.	Domain
A, B, C, D, E A, B, C, D, E, F, G	PF21088	Mechanosensitive ion channel, transmembrane helices 2/3 (MS_channel_1st)	Mechanosensitive ion channel, transmembrane helices 2/3	This entry includes small conductance mechanosensitive channels (MscS), which assembles to a homoheptameric complex [1-6]. Each monomer consists of a N-terminal transmembrane region and a large cytoplasmic segment composed of a five-stranded antipara ...	This entry includes small conductance mechanosensitive channels (MscS), which assembles to a homoheptameric complex [1-6]. Each monomer consists of a N-terminal transmembrane region and a large cytoplasmic segment composed of a five-stranded antiparallel beta-sheet (middle/second) domain and a C-terminal alpha/beta-domain [4-7]. The N-terminal region consists of three membrane spanning helices (TM1, TM2 and TM3), TM2 and TM3 are represented in this entry. In the heptamer, the permeation pathway is formed by the packing of TM3s, flanked by TM1-TM2 helical hairpins [4].	Domain
A, B, C, D, E A, B, C, D, E, F, G	PF21082	Mechanosensitive ion channel MscS, C-terminal (MS_channel_3rd)	Mechanosensitive ion channel MscS, C-terminal	This entry includes small conductance mechanosensitive channels (MscS), which assembles to a homoheptameric complex [1-6]. Each monomer consists of a N-terminal transmembrane region and a large cytoplasmic segment composed of a five-stranded antipara ...	This entry includes small conductance mechanosensitive channels (MscS), which assembles to a homoheptameric complex [1-6]. Each monomer consists of a N-terminal transmembrane region and a large cytoplasmic segment composed of a five-stranded antiparallel beta-sheet domain (beta-domain, Pfam:PF00924) and a C-terminal alpha/beta-domain [1,2,3]. This is the C-terminal domain of McsS which, together with the middle beta-domain, creates a framework that connects to the cytoplasm through distinct openings [4-6].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F, G	Mechanosensitive channel MscS	passive transmembrane transporter activity gated channel activity monoatomic ion channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity mechanosensitive monoatomic ion channel activity	-	cell periphery plasma membrane membrane cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F, G	IPR049142	Mechanosensitive ion channel, transmembrane helices 2/3	Domain
A, B, C, D, E A, B, C, D, E, F, G	IPR010920	LSM domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G	IPR006685	Mechanosensitive ion channel MscS	Domain
A, B, C, D, E A, B, C, D, E, F, G	IPR011014	Mechanosensitive ion channel MscS, transmembrane-2	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G	IPR049278	Mechanosensitive ion channel MscS, C-terminal domain	Domain
A, B, C, D, E A, B, C, D, E, F, G	IPR011066	Mechanosensitive ion channel MscS, C-terminal domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G	IPR045275	Mechanosensitive ion channel MscS, archaea/bacteria type	Family
A, B, C, D, E A, B, C, D, E, F, G	IPR023408	Mechanosensitive ion channel MscS, beta-domain superfamily	Homologous Superfamily

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C, D, E A, B, C, D, E, F, G	OPM	Transmembrane	Alpha-helical polytopic	Small conductance mechanosensitive ion channel (MscS)	Small conductance mechanosensitive ion channels