Annotations: 9HI4

Structure of FI6-focused design_03 scaffold in complex with FI6-Fab

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	PAD_N	e9hi4D1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: PAD_N	ECOD (v295.2)
C	PAD_N	e9hi4C1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: PAD_N	ECOD (v295.2)
F [auth L]	SPRY	e9hi4L1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: SPRY	ECOD (v295.2)
B	SPRY	e9hi4B1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: SPRY	ECOD (v295.2)
E [auth K]	DNA_ligase_A_N	e9hi4K1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: DNA_ligase_A_N	ECOD (v295.2)
A	DNA_ligase_A_N	e9hi4A1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: DNA_ligase_A_N	ECOD (v295.2)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B, F [auth L]	Light Chain	IGKV4	Kappa	fi6-focused design_03	SAbDab (2026-08-21)
A, E [auth K]	Heavy Chain	IGHV3	-	fi6-focused design_03	SAbDab (2026-08-21)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C	PF13472	GDSL-like Lipase/Acylhydrolase family (Lipase_GDSL_2)	GDSL-like Lipase/Acylhydrolase family	This family of presumed lipases and related enzymes are similar to Pfam:PF00657.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D	FI6-focused design_03	-	-	-
C	FI6-focused design_03	lysophospholipase A1 activity phospholipase activity hydrolase activity, acting on ester bonds glycerophospholipase activity carboxylic ester hydrolase activity A1-type glycerophospholipase activity hydrolase activity phosphatidylcholine lysophospholipase A1 activity catalytic activity lipase activity	-	-
B, F [auth L]	FI6 Fab Light chain	-	-	-
A, E [auth K]	FI6 Fab Heavy chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C	IPR013830	SGNH hydrolase-type esterase domain	Domain
C	IPR036514	SGNH hydrolase superfamily	Homologous Superfamily
C	IPR051532	Diverse Ester Hydrolysis Enzymes	Family

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
C	SEP	Parent Component: SER : AA0037 : O-phospho-L-serine MOD:00046

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