Annotations: 1FSK

COMPLEX FORMATION BETWEEN A FAB FRAGMENT OF A MONOCLONAL IGG ANTIBODY AND THE MAJOR ALLERGEN FROM BIRCH POLLEN BET V 1

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	d1fska_	Alpha and beta proteins (a+b)	TBP-like	Bet v1-like	Pathogenesis-related protein 10 (PR10)-like	Major tree pollen allergen	European white birch (Betula pendula ) [TaxId: 3505 ],	SCOPe (2.08)
D	d1fskd_	Alpha and beta proteins (a+b)	TBP-like	Bet v1-like	Pathogenesis-related protein 10 (PR10)-like	Major tree pollen allergen	European white birch (Betula pendula ) [TaxId: 3505 ],	SCOPe (2.08)
J	d1fskj_	Alpha and beta proteins (a+b)	TBP-like	Bet v1-like	Pathogenesis-related protein 10 (PR10)-like	Major tree pollen allergen	European white birch (Betula pendula ) [TaxId: 3505 ],	SCOPe (2.08)
G	d1fskg_	Alpha and beta proteins (a+b)	TBP-like	Bet v1-like	Pathogenesis-related protein 10 (PR10)-like	Major tree pollen allergen	European white birch (Betula pendula ) [TaxId: 3505 ],	SCOPe (2.08)
B	d1fskb1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	Immunoglobulin light chain kappa variable domain, VL-kappa	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B	d1fskb2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin light chain kappa constant domain, CL-kappa	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
H	d1fskh1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	Immunoglobulin light chain kappa variable domain, VL-kappa	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
H	d1fskh2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin light chain kappa constant domain, CL-kappa	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
K	d1fskk1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	Immunoglobulin light chain kappa variable domain, VL-kappa	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
K	d1fskk2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin light chain kappa constant domain, CL-kappa	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
E	d1fske1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	Immunoglobulin light chain kappa variable domain, VL-kappa	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
E	d1fske2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin light chain kappa constant domain, CL-kappa	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
L	d1fskl1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	Immunoglobulin heavy chain variable domain, VH	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
L	d1fskl2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
L	d1fskl3	Artifacts	Tags	Tags	Tags	N-terminal Tags	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
I	d1fski1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	Immunoglobulin heavy chain variable domain, VH	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
I	d1fski2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
I	d1fski3	Artifacts	Tags	Tags	Tags	N-terminal Tags	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
F	d1fskf1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	Immunoglobulin heavy chain variable domain, VH	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
F	d1fskf2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
F	d1fskf3	Artifacts	Tags	Tags	Tags	N-terminal Tags	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
C	d1fskc1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	Immunoglobulin heavy chain variable domain, VH	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
C	d1fskc2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
C	d1fskc3	Artifacts	Tags	Tags	Tags	N-terminal Tags	house mouse (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	Bet v1-like	8036369	3000738	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Bet v1-like	8036369	3000738	SCOP2B (2022-06-29)
J	SCOP2B Superfamily	Bet v1-like	8036369	3000738	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	Bet v1-like	8036369	3000738	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Immunoglobulin (Ig) domain-like	8091539	3000071	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	Immunoglobulin (Ig) domain-like	8091539	3000071	SCOP2B (2022-06-29)
K	SCOP2B Superfamily	Immunoglobulin (Ig) domain-like	8091539	3000071	SCOP2B (2022-06-29)
E	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	HSP90,HATPase_c_3	e1fskA1	A: alpha arrays	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: HSP90,HATPase_c_3	ECOD (v295.2)
D	HSP90,HATPase_c_3	e1fskD1	A: alpha arrays	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: HSP90,HATPase_c_3	ECOD (v295.2)
J	HSP90,HATPase_c_3	e1fskJ1	A: alpha arrays	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: HSP90,HATPase_c_3	ECOD (v295.2)
G	HSP90,HATPase_c_3	e1fskG1	A: alpha arrays	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: HSP90,HATPase_c_3	ECOD (v295.2)
B	Copper-bind	e1fskB1	A: alpha arrays	X: Phage tail fiber protein trimerization domain	H: Phage tail fiber protein trimerization domain	T: Phage tail fiber protein trimerization domain	F: Copper-bind	ECOD (v295.2)
H	Copper-bind	e1fskH1	A: alpha arrays	X: Phage tail fiber protein trimerization domain	H: Phage tail fiber protein trimerization domain	T: Phage tail fiber protein trimerization domain	F: Copper-bind	ECOD (v295.2)
K	Copper-bind	e1fskK1	A: alpha arrays	X: Phage tail fiber protein trimerization domain	H: Phage tail fiber protein trimerization domain	T: Phage tail fiber protein trimerization domain	F: Copper-bind	ECOD (v295.2)
E	Copper-bind	e1fskE1	A: alpha arrays	X: Phage tail fiber protein trimerization domain	H: Phage tail fiber protein trimerization domain	T: Phage tail fiber protein trimerization domain	F: Copper-bind	ECOD (v295.2)
L	Copper-bind	e1fskL1	A: alpha arrays	X: Phage tail fiber protein trimerization domain	H: Phage tail fiber protein trimerization domain	T: Phage tail fiber protein trimerization domain	F: Copper-bind	ECOD (v295.2)
I	Copper-bind	e1fskI1	A: alpha arrays	X: Phage tail fiber protein trimerization domain	H: Phage tail fiber protein trimerization domain	T: Phage tail fiber protein trimerization domain	F: Copper-bind	ECOD (v295.2)
F	Copper-bind	e1fskF1	A: alpha arrays	X: Phage tail fiber protein trimerization domain	H: Phage tail fiber protein trimerization domain	T: Phage tail fiber protein trimerization domain	F: Copper-bind	ECOD (v295.2)
C	Copper-bind	e1fskC1	A: alpha arrays	X: Phage tail fiber protein trimerization domain	H: Phage tail fiber protein trimerization domain	T: Phage tail fiber protein trimerization domain	F: Copper-bind	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.530.20	Alpha Beta	2-Layer Sandwich	Alpha-D-Glucose-1,6-Bisphosphate	Chain A, domain 4	CATH (4.3.0)
D	3.30.530.20	Alpha Beta	2-Layer Sandwich	Alpha-D-Glucose-1,6-Bisphosphate	Chain A, domain 4	CATH (4.3.0)
J	3.30.530.20	Alpha Beta	2-Layer Sandwich	Alpha-D-Glucose-1,6-Bisphosphate	Chain A, domain 4	CATH (4.3.0)
G	3.30.530.20	Alpha Beta	2-Layer Sandwich	Alpha-D-Glucose-1,6-Bisphosphate	Chain A, domain 4	CATH (4.3.0)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
H	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
K	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
E	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
L	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
I	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
F	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
C	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, H, K	Mst2 / Bv16	L-KAPPA	Mus musculus (house mouse)	IGKV6-2001, IGKJ201, IGKC01, IGKC02	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202635-0)
C, F, I, L	Mst2 / Bv16	VH-CH1	Mus musculus (house mouse)	IGHV1S12601, IGHV1-6902, IGHV1-6101, IGHJ301, IGHG1*02	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202635-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B, E, H, K	Light Chain	IGKV6	Kappa	major pollen allergen bet v 1-a	SAbDab (2026-09-11)
C, F, I, L	Heavy Chain	IGHV1	-	major pollen allergen bet v 1-a	SAbDab (2026-09-11)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B, E, H, K	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, D, G, J	MAJOR POLLEN ALLERGEN BET V 1-A	enzyme regulator activity phosphatase inhibitor activity molecular function inhibitor activity phosphatase regulator activity molecular function regulator activity protein phosphatase regulator activity protein phosphatase inhibitor activity enzyme inhibitor activity molecular transducer activity signaling receptor activity organic acid binding binding alcohol binding isoprenoid binding enzyme regulator activity phosphatase inhibitor activity molecular function inhibitor activity phosphatase regulator activity molecular function regulator activity protein phosphatase regulator activity protein phosphatase inhibitor activity enzyme inhibitor activity molecular transducer activity signaling receptor activity organic acid binding binding alcohol binding isoprenoid binding hormone binding ion binding abscisic acid binding anion binding lipid binding carboxylic acid binding monocarboxylic acid binding small molecule binding	cellular response to stimulus regulation of cellular process response to stimulus response to lipid abscisic acid-activated signaling pathway signaling hormone-mediated signaling pathway cell communication cellular response to endogenous stimulus response to hormone signal transduction cellular response to hormone stimulus cellular response to abscisic acid stimulus regulation of biological process cellular response to stimulus regulation of cellular process response to stimulus response to lipid abscisic acid-activated signaling pathway signaling hormone-mediated signaling pathway cell communication cellular response to endogenous stimulus response to hormone signal transduction cellular response to hormone stimulus cellular response to abscisic acid stimulus regulation of biological process response to abscisic acid response to alcohol response to endogenous stimulus biological regulation response to oxygen-containing compound cellular response to oxygen-containing compound cellular response to chemical stimulus cellular response to alcohol response to chemical cellular response to lipid cellular process defense response response to stress	cellular anatomical structure intracellular anatomical structure cytoplasm membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle
B, E, H, K	IMMUNOGLOBULIN KAPPA LIGHT CHAIN	-	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
C, F, I, L	ANTIBODY HEAVY CHAIN FAB	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, D, G, J	IPR024949	Bet v I type allergen	Family
A, D, G, J	IPR000916	Bet v I/Major latex protein	Domain
A, D, G, J	IPR050279	Plant defense and hormone signaling protein	Family
A, D, G, J	IPR023393	START-like domain superfamily	Homologous Superfamily
B, E, H, K	IPR003597	Immunoglobulin C1-set	Domain
B, E, H, K	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
B, E, H, K	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
B, E, H, K	IPR007110	Immunoglobulin-like domain	Domain
B, E, H, K	IPR050380	Immune Recognition and Response Modulators	Family
B, E, H, K	IPR003006	Immunoglobulin/major histocompatibility complex, conserved site	Conserved Site