Annotations: 7P2P

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
D	PF06645	Microsomal signal peptidase 12 kDa subunit (SPC12) (SPC12)	Microsomal signal peptidase 12 kDa subunit (SPC12)	-	Family
C	PF06703	Microsomal signal peptidase 25 kDa subunit (SPC25) (SPC25)	Microsomal signal peptidase 25 kDa subunit (SPC25)	-	Family
A	PF00717	Peptidase S24-like (Peptidase_S24)	Peptidase S24-like		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D	Signal peptidase complex subunit 1	-	signal peptide processing primary metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis protein processing metabolic process cellular process protein metabolic process macromolecule metabolic process viral gene expression viral protein processing signal peptide processing primary metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis protein processing metabolic process cellular process protein metabolic process macromolecule metabolic process viral gene expression viral protein processing viral process localization establishment of protein localization establishment of protein localization to organelle protein targeting establishment of localization establishment of protein localization to endoplasmic reticulum protein targeting to ER virion assembly viral life cycle	membrane-bounded organelle protein-containing complex intracellular anatomical structure membrane protein complex endomembrane system serine-type peptidase complex endoplasmic reticulum subcompartment intracellular organelle cellular anatomical structure nuclear outer membrane-endoplasmic reticulum membrane network endopeptidase complex serine-type endopeptidase complex endoplasmic reticulum protein-containing complex endoplasmic reticulum membrane membrane-bounded organelle protein-containing complex intracellular anatomical structure membrane protein complex endomembrane system serine-type peptidase complex endoplasmic reticulum subcompartment intracellular organelle cellular anatomical structure nuclear outer membrane-endoplasmic reticulum membrane network endopeptidase complex serine-type endopeptidase complex endoplasmic reticulum protein-containing complex endoplasmic reticulum membrane catalytic complex organelle subcompartment peptidase complex membrane intracellular membrane-bounded organelle signal peptidase complex organelle endoplasmic reticulum cytoplasm organelle membrane
C	Signal peptidase complex subunit 2	-	signal peptide processing primary metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis protein processing metabolic process cellular process protein metabolic process macromolecule metabolic process localization establishment of protein localization signal peptide processing primary metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis protein processing metabolic process cellular process protein metabolic process macromolecule metabolic process localization establishment of protein localization establishment of protein localization to organelle protein targeting establishment of localization establishment of protein localization to endoplasmic reticulum protein targeting to ER	membrane-bounded organelle protein-containing complex intracellular anatomical structure membrane protein complex endomembrane system serine-type peptidase complex endoplasmic reticulum subcompartment intracellular organelle cellular anatomical structure nuclear outer membrane-endoplasmic reticulum membrane network endopeptidase complex serine-type endopeptidase complex endoplasmic reticulum protein-containing complex endoplasmic reticulum membrane membrane-bounded organelle protein-containing complex intracellular anatomical structure membrane protein complex endomembrane system serine-type peptidase complex endoplasmic reticulum subcompartment intracellular organelle cellular anatomical structure nuclear outer membrane-endoplasmic reticulum membrane network endopeptidase complex serine-type endopeptidase complex endoplasmic reticulum protein-containing complex endoplasmic reticulum membrane catalytic complex organelle subcompartment peptidase complex membrane intracellular membrane-bounded organelle signal peptidase complex organelle endoplasmic reticulum cytoplasm organelle membrane
B	Signal peptidase complex subunit 3	-	signal peptide processing primary metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis protein processing metabolic process cellular process protein metabolic process macromolecule metabolic process viral gene expression viral protein processing signal peptide processing primary metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis protein processing metabolic process cellular process protein metabolic process macromolecule metabolic process viral gene expression viral protein processing viral process localization establishment of protein localization establishment of protein localization to organelle protein targeting establishment of localization establishment of protein localization to endoplasmic reticulum protein targeting to ER	membrane-bounded organelle protein-containing complex intracellular anatomical structure membrane protein complex endomembrane system serine-type peptidase complex endoplasmic reticulum subcompartment intracellular organelle cellular anatomical structure nuclear outer membrane-endoplasmic reticulum membrane network endopeptidase complex serine-type endopeptidase complex endoplasmic reticulum protein-containing complex endoplasmic reticulum membrane membrane-bounded organelle protein-containing complex intracellular anatomical structure membrane protein complex endomembrane system serine-type peptidase complex endoplasmic reticulum subcompartment intracellular organelle cellular anatomical structure nuclear outer membrane-endoplasmic reticulum membrane network endopeptidase complex serine-type endopeptidase complex endoplasmic reticulum protein-containing complex endoplasmic reticulum membrane catalytic complex organelle subcompartment peptidase complex membrane intracellular membrane-bounded organelle signal peptidase complex organelle endoplasmic reticulum cytoplasm organelle membrane
A	Signal peptidase complex catalytic subunit SEC11A	peptidase activity catalytic activity, acting on a protein serine hydrolase activity serine-type peptidase activity hydrolase activity serine-type endopeptidase activity catalytic activity endopeptidase activity	biological process involved in interspecies interaction between organisms response to stimulus response to other organism response to external stimulus response to external biotic stimulus response to virus response to biotic stimulus signal peptide processing primary metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis biological process involved in interspecies interaction between organisms response to stimulus response to other organism response to external stimulus response to external biotic stimulus response to virus response to biotic stimulus signal peptide processing primary metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis protein processing metabolic process cellular process protein metabolic process macromolecule metabolic process	membrane-bounded organelle protein-containing complex intracellular anatomical structure membrane protein complex endomembrane system serine-type peptidase complex endoplasmic reticulum subcompartment intracellular organelle cellular anatomical structure nuclear outer membrane-endoplasmic reticulum membrane network endopeptidase complex serine-type endopeptidase complex endoplasmic reticulum protein-containing complex endoplasmic reticulum membrane membrane-bounded organelle protein-containing complex intracellular anatomical structure membrane protein complex endomembrane system serine-type peptidase complex endoplasmic reticulum subcompartment intracellular organelle cellular anatomical structure nuclear outer membrane-endoplasmic reticulum membrane network endopeptidase complex serine-type endopeptidase complex endoplasmic reticulum protein-containing complex endoplasmic reticulum membrane catalytic complex organelle subcompartment peptidase complex membrane intracellular membrane-bounded organelle signal peptidase complex organelle endoplasmic reticulum cytoplasm organelle membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
D	IPR009542	Signal peptidase complex subunit 1	Family
C	IPR009582	Signal peptidase complex subunit 2	Family
B	IPR007653	Signal peptidase complex subunit 3	Family
A	IPR019758	Peptidase S26A, signal peptidase I, conserved site	Conserved Site
A	IPR015927	Peptidase S24/S26A/S26B/S26C	Domain
A	IPR001733	Peptidase S26B	Family
A	IPR019533	Peptidase S26	Domain
A	IPR036286	LexA/Signal peptidase-like superfamily	Homologous Superfamily
A	IPR019756	Peptidase S26A, signal peptidase I, serine active site	Active Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
D	Pharos: Q9Y6A9	attention deficit hyperactivity disorder, inattentive type breast cancer osteoarthritis autism spectrum disorder dermatomyositis ovarian cancer bipolar disorder endogenous depression pancreatic ductal adenocarcinoma
B	Pharos: P61009	breast cancer ductal breast carcinoma in situ osteosarcoma pituitary cancer Sjogren syndrome Crohn disease interstitial cystitis ovarian cancer plasma cell myeloma ulcerative colitis cutaneous lupus erythematosus invasive ductal breast carcinoma pancreatic ductal adenocarcinoma psoriasis
A	Pharos: P67812	subependymal giant cell astrocytoma anorexia nervosa autism spectrum disorder dilated cardiomyopathy lymphoplasmacytic lymphoma medulloblastoma pancreatic intraductal papillary-mucinous neoplasm primitive neuroectodermal tumor astrocytic tumor bipolar disorder glioblastoma malignant ependymoma oligodendroglioma pilocytic astrocytoma psoriasis subependymal giant cell astrocytoma anorexia nervosa autism spectrum disorder dilated cardiomyopathy lymphoplasmacytic lymphoma medulloblastoma pancreatic intraductal papillary-mucinous neoplasm primitive neuroectodermal tumor astrocytic tumor bipolar disorder glioblastoma malignant ependymoma oligodendroglioma pilocytic astrocytoma psoriasis atypical teratoid rhabdoid tumor dermatomyositis large cell medulloblastoma malignant glioma ovarian cancer plasma cell myeloma

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C, D	OPM	Transmembrane	Alpha-helical polytopic	Signal peptidase complex	Signal peptidase complex

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C, D	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C, D	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Intramembrane Proteases	Signal Peptidase Complex Paralog A (SPC-A)

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.