4NZT

Crystal structure of the antibody-binding region of Protein M (Protein M TD) in complex with anti-infleunza hemagglutinin antibody CR9114 Fab

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B [auth H]	d4nzth_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C [auth L]	d4nztl2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C [auth L]	d4nztl1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth M]	PF20757,PF22805	e4nztM1	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Protein M antibody-binding region (From Topology)	T: Protein M antibody-binding region	F: PF20757,PF22805	ECOD (1.6)
B [auth H]	PF07654	e4nztH1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07654	ECOD (1.6)
C [auth L]	PF07654	e4nztL1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07654	ECOD (1.6)
C [auth L]	PF07686	e4nztL2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07686	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth M]	3.30.1370.200	Alpha Beta	2-Layer Sandwich	Ribosomal Protein S8	Chain: A, domain 1	CATH (4.3.0)
A [auth M]	2.160.20.180	Mainly Beta	3 Solenoid	Pectate Lyase C-like		CATH (4.3.0)
A [auth M]	3.30.110.180	Alpha Beta	2-Layer Sandwich	Translation Initiation Factor IF3		CATH (4.3.0)
B [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
C [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
B [auth H]	CR9114	VH-CH1	Homo sapiens (human)	IGHV1-6901, IGHV1-6906, IGHV1-6912, IGHV1-6913, IGHV1-6914, IGHV1-69D01, IGHJ601, IGHJ602, IGHG1*03	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_LAMBDA	IMGT (202416-0)
C [auth L]	CR9114	L-LAMBDA	Homo sapiens (human)	IGLV1-4401, IGLJ701, IGLC201, IGLC202, IGLC3*04	V-DOMAIN V-LAMBDA, C-DOMAIN C-LAMBDA	IG	FAB-GAMMA-1_LAMBDA	IMGT (202416-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth H]	Heavy Chain	IGHV1	-	protein m td	SAbDab (2024-04-26)
C [auth L]	Light Chain	IGLV1	Lambda	protein m td	SAbDab (2024-04-26)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth M]	PF20757	Protein M antibody-binding region (M_Ab-bd)	Protein M antibody-binding region	This domain is found in proteins from Mycoplasmaceae, including Uncharacterized protein MG281 from Mycoplasma genitalium, also known as protein M. This virulence protein consists of two domains. The larger one (this entry) binds the IgG light chain t ...	This domain is found in proteins from Mycoplasmaceae, including Uncharacterized protein MG281 from Mycoplasma genitalium, also known as protein M. This virulence protein consists of two domains. The larger one (this entry) binds the IgG light chain to block the binding of antibody to antigen. It includes a leucine-rich repeat (LRR)-like subdomain, which faces away from the antibody molecule [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth M]	Protein M TD	-	-	membrane cellular anatomical entity
B [auth H]	CR9114 heavy chain	-	-	-
C [auth L]	CR9114 light chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth M]	IPR048475	MG281-like, antibody-binding region	Domain
A [auth M]	IPR030943	IgG-blocking protein M	Family
A [auth M]	IPR030942	IgG-blocking virulence domain	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.