Annotations: 6F7T

Crystal Structure of an Fab fragment in complex with a peptide from Bacillus subtilis RNase Y

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
E [auth H]	TIP49_C	e6f7tH1	A: alpha arrays	X: L-aspartase middle domain-like	H: L-aspartase middle domain-like	T: L-aspartase middle domain-like	F: TIP49_C	ECOD (v295.2)
B	COesterase, BD-FAE	e6f7tB1	A: alpha arrays	X: L-aspartase middle domain-like	H: L-aspartase middle domain-like	T: L-aspartase middle domain-like	F: COesterase, BD-FAE	ECOD (v295.2)
F [auth L]	COesterase, BD-FAE	e6f7tL1	A: alpha arrays	X: L-aspartase middle domain-like	H: L-aspartase middle domain-like	T: L-aspartase middle domain-like	F: COesterase, BD-FAE	ECOD (v295.2)
A	TIP49_C	e6f7tA1	A: alpha arrays	X: L-aspartase middle domain-like	H: L-aspartase middle domain-like	T: L-aspartase middle domain-like	F: TIP49_C	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
E [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
F [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A	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, E [auth H]	Fab RY79-90	VH-CH1	Mus musculus (house mouse)	IGHV9-3-101, IGHJ301, IGHG2A01, IGHG2A02	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-2A_LAMBDA	IMGT (202637-0)
A, F [auth L]	Fab RY79-90	L-LAMBDA	Mus musculus (house mouse)	IGLV301, IGLJ201, IGLC201, IGLC202	V-DOMAIN V-LAMBDA, C-DOMAIN C-LAMBDA	IG	FAB-GAMMA-2A_LAMBDA	IMGT (202637-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B, E [auth H]	Heavy Chain	IGHV9	-	ribonuclease y	SAbDab (2026-09-25)
A, F [auth L]	Light Chain	IGLV3	Lambda	ribonuclease y	SAbDab (2026-09-25)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, D	Ribonuclease Y	endonuclease activity nuclease activity catalytic activity, acting on RNA RNA endonuclease activity catalytic activity, acting on a nucleic acid RNA nuclease activity catalytic activity RNA binding binding nucleic acid binding identical protein binding protein binding	regulation of cellular process catabolic process negative regulation of biological process RNA metabolic process macromolecule catabolic process nucleobase-containing compound metabolic process negative regulation of cellular process RNA catabolic process negative regulation of macromolecule metabolic process regulation of biosynthetic process mRNA catabolic process regulation of biological process negative regulation of metabolic process biological regulation regulation of cellular process catabolic process negative regulation of biological process RNA metabolic process macromolecule catabolic process nucleobase-containing compound metabolic process negative regulation of cellular process RNA catabolic process negative regulation of macromolecule metabolic process regulation of biosynthetic process mRNA catabolic process regulation of biological process negative regulation of metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process mRNA metabolic process nucleic acid metabolic process nucleobase-containing compound catabolic process regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process nucleic acid catabolic process regulation of macromolecule biosynthetic process metabolic process cellular process macromolecule metabolic process regulation of metabolic process	cell periphery cellular anatomical structure plasma membrane membrane
B, E [auth H]	FAB RY79-90, HEAVY CHAIN	-	-	-
A, F [auth L]	FAB RY79-90, LIGHT CHAIN	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C, D	IPR003607	HD/PDEase domain	Domain
C, D	IPR006675	HDIG domain	Domain
C, D	IPR022711	Ribonuclease Y, N-terminal	Domain
C, D	IPR004087	K Homology domain	Domain
C, D	IPR036612	K Homology domain, type 1 superfamily	Homologous Superfamily
C, D	IPR017705	Ribonuclease Y	Family
C, D	IPR004088	K Homology domain, type 1	Domain
C, D	IPR006674	HD domain	Domain