Annotations: 4CAD

Mechanism of farnesylated CAAX protein processing by the integral membrane protease Rce1

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
Membrane Protein Annotation: mpstruc

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
K	d4cadk_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
H	d4cadh_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
E	d4cade_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B	d4cadb_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
J	d4cadj1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
G	d4cadg1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
D	d4cadd1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A	d4cada1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
L	POTRA	e4cadL1	A: alpha arrays	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v295.2)
I	Rce1-like	e4cadI1	A: alpha arrays	X: CCHHC domain	H: C-terminal domain in some PLP-dependent transferases	T: C-terminal domain in some PLP-dependent transferases	F: Rce1-like	ECOD (v295.2)
F	POTRA	e4cadF1	A: alpha arrays	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v295.2)
C	POTRA	e4cadC1	A: alpha arrays	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v295.2)
K	POTRA	e4cadK1	A: alpha arrays	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v295.2)
H	POTRA	e4cadH1	A: alpha arrays	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v295.2)
E	POTRA	e4cadE1	A: alpha arrays	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v295.2)
B	POTRA	e4cadB1	A: alpha arrays	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v295.2)
J	POTRA	e4cadJ1	A: alpha arrays	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v295.2)
G	POTRA	e4cadG2	A: alpha arrays	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v295.2)
G	Glutaredoxin	e4cadG1	A: alpha arrays	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: Glutaredoxin	ECOD (v295.2)
D	POTRA	e4cadD1	A: alpha arrays	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v295.2)
A	POTRA	e4cadA1	A: alpha arrays	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
K	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)
E	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
J	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
G	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
D	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, H, K	Antibody Fab Fragment	VH-CH1	Mus musculus (house mouse)	IGHV1-901, IGHJ401, IGHG2A01, IGHG2A02	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-2A_KAPPA	IMGT (202638-0)
A, D, G, J	Antibody Fab Fragment	L-KAPPA	Mus musculus (house mouse)	IGKV12-4102, IGKV12-4101, IGKJ101, IGKC01, IGKC*02	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-2A_KAPPA	IMGT (202638-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B, E, H, K	Heavy Chain	IGHV1	-	ras and a-factor converting enzyme 1, rce1	SAbDab (2026-10-02)
A, D, G, J	Light Chain	IGKV12	Kappa	ras and a-factor converting enzyme 1, rce1	SAbDab (2026-10-02)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, F, I, L	RAS AND A-FACTOR CONVERTING ENZYME 1, RCE1	peptidase activity catalytic activity, acting on a protein hydrolase activity catalytic activity endopeptidase activity	CAAX-box protein processing primary metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis CAAX-box protein maturation protein processing metabolic process cellular process protein metabolic process macromolecule metabolic process	cell periphery cellular anatomical structure plasma membrane membrane
B, E, H, K	ANTIBODY FAB FRAGMENT HEAVY CHAIN	-	-	-
A, D, G, J	ANTIBODY FAB FRAGMENT LIGHT CHAIN	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C, F, I, L	IPR003675	CAAX prenyl protease 2/Lysostaphin resistance protein A-like domain	Domain
C, F, I, L	IPR042150	CAAX prenyl protease 2, MmRce1-like	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
C, F, I, L	OPM	Transmembrane	Alpha-helical polytopic	Peptidase clan U	Glutamate-dependent intramembrane protease

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
C, F, I, L	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
C, F, I, L	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
C, F, I, L	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Intramembrane Proteases	CAAX protease Rce1