Annotations: 1FNX

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B [auth H]	d1fnxh1	Alpha and beta proteins (a+b)	Ferredoxin-like	RNA-binding domain, RBD, aka RNA recognition motif (RRM)	Canonical RBD	Hu antigen C (Huc)	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B [auth H]	d1fnxh3	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)
B [auth H]	SCOP2 Family	Canonical RBD	8032054	4000236	SCOP2 (2022-06-29)
B [auth H]	SCOP2 Family	Canonical RBD	8032057	4000236	SCOP2 (2022-06-29)
B [auth H]	SCOP2 Superfamily	RNA-binding domain, RBD	8044432	3000110	SCOP2 (2022-06-29)
B [auth H]	SCOP2 Superfamily	RNA-binding domain, RBD	8044435	3000110	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth H]	RRM_1_1	e1fnxH2	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD (From Topology)	T: RNA-binding domain, RBD	F: RRM_1_1	ECOD (1.6)
B [auth H]	RRM_1	e1fnxH1	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD (From Topology)	T: RNA-binding domain, RBD	F: RRM_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth H]	3.30.70.330	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	RRM (RNA recognition motif) domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth H]	PF00076	RNA recognition motif (RRM_1)	RNA recognition motif	The RRM motif (a.k.a. RRM, RBD, or RNP domain) is probably diagnostic of an RNA binding protein. RRMs are found in a variety of RNA binding proteins, including various hnRNP proteins, proteins implicated in regulation of alternative splicing, and pro ...	The RRM motif (a.k.a. RRM, RBD, or RNP domain) is probably diagnostic of an RNA binding protein. RRMs are found in a variety of RNA binding proteins, including various hnRNP proteins, proteins implicated in regulation of alternative splicing, and protein components of snRNPs. The motif also appears in a few single stranded DNA binding proteins. The RRM structure consists of four strands and two helices arranged in an alpha/beta sandwich, with a third helix present during RNA binding in some cases The C-terminal beta strand (4th strand) and final helix are hard to align and have been omitted in the SEED alignment The LA proteins (Swiss:P05455) have an N terminal rrm which is included in the seed. There is a second region towards the C terminus that has some features characteristic of a rrm but does not appear to have the important structural core of a rrm. The LA proteins (Swiss:P05455) are one of the main autoantigens in Systemic lupus erythematosus (SLE), an autoimmune disease.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth R]	AU-RICH RNA ELEMENT	-	-	-
B [auth H]	HU ANTIGEN C	mRNA 3'-UTR binding RNA binding mRNA 3'-UTR AU-rich region binding binding nucleic acid binding mRNA binding	developmental process cellular developmental process cell differentiation cellular process multicellular organism development multicellular organismal process anatomical structure development nervous system development system development	protein-containing complex ribonucleoprotein complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth H]	IPR003954	RNA recognition motif domain, eukaryotes	Domain
B [auth H]	IPR012677	Nucleotide-binding alpha-beta plait domain superfamily	Homologous Superfamily
B [auth H]	IPR002343	Paraneoplastic encephalomyelitis antigen	Family
B [auth H]	IPR000504	RNA recognition motif domain	Domain
B [auth H]	IPR034915	HuC, RNA recognition motif 3	Domain
B [auth H]	IPR035979	RNA-binding domain superfamily	Homologous Superfamily
B [auth H]	IPR006548	Splicing factor ELAV/Hu	Family

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.