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: beta barrels	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v294.2)
I	Rce1-like	e4cadI1	A: beta barrels	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 (v294.2)
F	POTRA	e4cadF1	A: beta barrels	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v294.2)
C	POTRA	e4cadC1	A: beta barrels	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v294.2)
K	POTRA	e4cadK1	A: beta barrels	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v294.2)
H	POTRA	e4cadH1	A: beta barrels	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v294.2)
E	POTRA	e4cadE1	A: beta barrels	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v294.2)
B	POTRA	e4cadB1	A: beta barrels	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v294.2)
J	POTRA	e4cadJ1	A: beta barrels	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v294.2)
G	POTRA	e4cadG2	A: beta barrels	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v294.2)
G	Acyl-CoA_dh_1	e4cadG1	A: beta barrels	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: Acyl-CoA_dh_1	ECOD (v294.2)
D	POTRA	e4cadD1	A: beta barrels	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v294.2)
A	POTRA	e4cadA1	A: beta barrels	X: CCHHC domain	H: CCHHC domain	T: CCHHC domain	F: POTRA	ECOD (v294.2)

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 (202617-0)
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 (202617-0)

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 (2026-05-08)
A, D, G, J	Light Chain	IGKV12	Kappa	ras and a-factor converting enzyme 1, rce1	SAbDab (2026-05-08)

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

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

4CAD | pdb_00004cad