Annotations: 1UWX

P1.2 serosubtype antigen derived from N. meningitidis PorA in complex with Fab fragment

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 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)
A	d1uwxa_	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	Immunoglobulin-binding domains	Immunoglobulin-binding domains	automated matches	(Streptococcus sp. ) [TaxId: 1306 ],	SCOPe (2.08)
B	d1uwxb_	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	Immunoglobulin-binding domains	Immunoglobulin-binding domains	automated matches	(Streptococcus sp. ) [TaxId: 1306 ],	SCOPe (2.08)
C [auth H]	d1uwxh1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
F [auth M]	d1uwxm1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Immunoglobulin-binding domains-like	8072912	3000399	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Immunoglobulin-binding domains-like	8072912	3000399	SCOP2B (2022-06-29)
D [auth K]	SCOP2B Superfamily	Immunoglobulin (Ig) domain-like	8091539	3000071	SCOP2B (2022-06-29)
E [auth L]	SCOP2B Superfamily	Immunoglobulin (Ig) domain-like	8091539	3000071	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Polyketide_cyc2	e1uwxA1	A: beta barrels	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: Polyketide_cyc2	ECOD (v294.2)
B	Polyketide_cyc2	e1uwxB1	A: beta barrels	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: Polyketide_cyc2	ECOD (v294.2)
C [auth H]	Copper-bind	e1uwxH1	A: beta barrels	X: Phage tail fiber protein trimerization domain	H: beta-Prism I	T: beta-Prism I	F: Copper-bind	ECOD (v294.2)
C [auth H]	C1-set	e1uwxH2	A: beta barrels	X: Globin-like	H: Globin-like	T: Globin-like	F: C1-set	ECOD (v294.2)
F [auth M]	Copper-bind	e1uwxM1	A: beta barrels	X: Phage tail fiber protein trimerization domain	H: beta-Prism I	T: beta-Prism I	F: Copper-bind	ECOD (v294.2)
F [auth M]	Sigma_1_2	e1uwxM2	A: beta barrels	X: HTH	H: Nudix	T: winged helix domain	F: Sigma_1_2	ECOD (v294.2)
D [auth K]	C1-set	e1uwxK1	A: beta barrels	X: Globin-like	H: Globin-like	T: Globin-like	F: C1-set	ECOD (v294.2)
E [auth L]	Sigma_1_2	e1uwxL1	A: beta barrels	X: HTH	H: Nudix	T: winged helix domain	F: Sigma_1_2	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.20.10	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
B	3.10.20.10	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
C [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
F [auth M]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
D [auth K]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
E [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
C [auth H], F [auth M]	P1.2	VH-CH1	Mus musculus (house mouse)	IGHV9-3-101, IGHJ201, IGHG2A01, IGHG2A02	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-2A_KAPPA	IMGT (202617-0)
D [auth K], E [auth L]	P1.2	L-KAPPA	Mus musculus (house mouse)	IGKV12-9801, IGKJ201, IGKC01, IGKC02	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-2A_KAPPA	IMGT (202617-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth H], F [auth M]	Heavy Chain	IGHV9	-	class 1 outer membrane protein variable region 2	SAbDab (2026-05-08)
D [auth K], E [auth L]	Light Chain	IGKV12	Kappa	class 1 outer membrane protein variable region 2	SAbDab (2026-05-08)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
D [auth K], E [auth L]	PF07654	Immunoglobulin C1-set domain (C1-set)	Immunoglobulin C1-set domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	PROTEIN G-PRIME	protein-containing complex binding binding immunoglobulin binding IgG binding	-	-
C [auth H], F [auth M]	ANTIBODY	-	-	-
D [auth K], E [auth L]	ANTIBODY	-	developmental process multicellular organismal process cellular developmental process hemopoiesis B cell activation cell activation cell development mononuclear cell differentiation lymphocyte differentiation lymphocyte activation leukocyte activation B cell differentiation cell differentiation immune system process anatomical structure development developmental process multicellular organismal process cellular developmental process hemopoiesis B cell activation cell activation cell development mononuclear cell differentiation lymphocyte differentiation lymphocyte activation leukocyte activation B cell differentiation cell differentiation immune system process anatomical structure development cellular process leukocyte differentiation response to stimulus immune response adaptive immune response	cell periphery cellular anatomical structure plasma membrane membrane protein-containing complex plasma membrane protein complex membrane protein complex alpha-beta T cell receptor complex plasma membrane signaling receptor complex signaling receptor complex T cell receptor complex extracellular region IgG immunoglobulin complex immunoglobulin complex
G [auth P], H [auth Q]	CLASS 1 OUTER MEMBRANE PROTEIN VARIABLE REGION 2	wide pore channel activity passive transmembrane transporter activity channel activity porin activity transporter activity transmembrane transporter activity	transmembrane transport localization transport monoatomic ion transmembrane transport monoatomic ion transport cellular process establishment of localization	protein-containing complex cellular anatomical structure membrane pore complex membrane protein complex cell outer membrane external encapsulating structure extracellular region cell envelope outer membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR009063	Immunoglobulin/albumin-binding domain superfamily	Homologous Superfamily
A, B	IPR005877	YSIRK Gram-positive signal peptide	Domain
A, B	IPR000724	IgG-binding B	Domain
A, B	IPR019950	M protein-type anchor motif	Conserved Site
A, B	IPR035152	GA-like domain	Domain
A, B	IPR019931	LPXTG cell wall anchor motif	Conserved Site
D [auth K], E [auth L]	IPR003597	Immunoglobulin C1-set	Domain
D [auth K], E [auth L]	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
D [auth K], E [auth L]	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
D [auth K], E [auth L]	IPR007110	Immunoglobulin-like domain	Domain
D [auth K], E [auth L]	IPR050380	Immune Recognition and Response Modulators	Family
D [auth K], E [auth L]	IPR003006	Immunoglobulin/major histocompatibility complex, conserved site	Conserved Site
G [auth P], H [auth Q]	IPR050298	Gram-negative bacterial outer membrane porin	Family
G [auth P], H [auth Q]	IPR033900	Porin domain, Gram-negative type	Domain
G [auth P], H [auth Q]	IPR023614	Porin domain superfamily	Homologous Superfamily
G [auth P], H [auth Q]	IPR002299	Porin, Neisseria sp. type	Family
G [auth P], H [auth Q]	IPR001702	Porin, Gram-negative type	Family
G [auth P], H [auth Q]	IPR013793	Porin, Gram-negative type, conserved site	Conserved Site

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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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.