Function and Biology

Fab fragment (MN14C11.6) in complex with a peptide antigen derived from Neisseria meningitidis P1.7 serosubtype antigen and domain II from Streptococcal protein G

Source organisms:
Biochemical function: not assigned
Biological process: not assigned
Cellular component: cell wall

GO terms

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:

Sequence family

Pfam Protein family (Pfam)
PF01378
Domain description: B domain
Occurring in:
  1. Immunoglobulin G-binding protein G
The deposited structure of PDB entry 1qkz contains 1 copy of Pfam domain PF01378 (B domain) in Immunoglobulin G-binding protein G. Showing 1 copy in chain A.

InterPro InterPro annotations
IPR003597
Domain description: Immunoglobulin C1-set
Occurring in:
  1. ANTIBODY
  2. ANTIBODY
IPR013106
Domain description: Immunoglobulin V-set domain
Occurring in:
  1. ANTIBODY
  2. ANTIBODY
IPR036179
Domain description: Immunoglobulin-like domain superfamily
Occurring in:
  1. ANTIBODY
  2. ANTIBODY
IPR013783
Domain description: Immunoglobulin-like fold
Occurring in:
  1. ANTIBODY
  2. ANTIBODY
IPR007110
Domain description: Immunoglobulin-like domain
Occurring in:
  1. ANTIBODY
  2. ANTIBODY
IPR003599
Domain description: Immunoglobulin domain subtype
Occurring in:
  1. ANTIBODY
  2. ANTIBODY
IPR003006
Domain description: Immunoglobulin/major histocompatibility complex, conserved site
Occurring in:
  1. ANTIBODY
IPR000724
Domain description: IgG-binding B
Occurring in:
  1. Immunoglobulin G-binding protein G

Structure domains

CATH CATH domains
2.60.40.10
Class: Mainly Beta
Architecture: Sandwich
Topology: Immunoglobulin-like
Homology: Immunoglobulins
Occurring in:
  1. ANTIBODY
  2. ANTIBODY
The deposited structure of PDB entry 1qkz contains 2 copies of CATH domain 2.60.40.10 (Immunoglobulin-like) in ANTIBODY. Showing 2 copies in chain B [auth H].
The deposited structure of PDB entry 1qkz contains 2 copies of CATH domain 2.60.40.10 (Immunoglobulin-like) in ANTIBODY. Showing 2 copies in chain C [auth L].
3.10.20.10
Class: Alpha Beta
Architecture: Roll
Topology: Ubiquitin-like (UB roll)
Homology: Ubiquitin-like (UB roll)
Occurring in:
  1. Immunoglobulin G-binding protein G
The deposited structure of PDB entry 1qkz contains 1 copy of CATH domain 3.10.20.10 (Ubiquitin-like (UB roll)) in Immunoglobulin G-binding protein G. Showing 1 copy in chain A.
SCOP SCOP annotations
48942
Class: All beta proteins
Fold: Immunoglobulin-like beta-sandwich
Superfamily: Immunoglobulin
Occurring in:
  1. ANTIBODY
  2. ANTIBODY
The deposited structure of PDB entry 1qkz contains 1 copy of SCOP domain 48942 (C1 set domains (antibody constant domain-like)) in ANTIBODY. Showing 1 copy in chain B [auth H].
The deposited structure of PDB entry 1qkz contains 1 copy of SCOP domain 48942 (C1 set domains (antibody constant domain-like)) in ANTIBODY. Showing 1 copy in chain C [auth L].
48727
Class: All beta proteins
Fold: Immunoglobulin-like beta-sandwich
Superfamily: Immunoglobulin
Occurring in:
  1. ANTIBODY
  2. ANTIBODY
The deposited structure of PDB entry 1qkz contains 1 copy of SCOP domain 48727 (V set domains (antibody variable domain-like)) in ANTIBODY. Showing 1 copy in chain B [auth H].
The deposited structure of PDB entry 1qkz contains 1 copy of SCOP domain 48727 (V set domains (antibody variable domain-like)) in ANTIBODY. Showing 1 copy in chain C [auth L].
54359
Class: Alpha and beta proteins (a+b)
Fold: beta-Grasp (ubiquitin-like)
Superfamily: Immunoglobulin-binding domains
Occurring in:
  1. Immunoglobulin G-binding protein G
The deposited structure of PDB entry 1qkz contains 1 copy of SCOP domain 54359 (Immunoglobulin-binding domains) in Immunoglobulin G-binding protein G. Showing 1 copy in chain A.