2IT9

Crystal structure of a protein with unknown function from DUF155 family (YP_292156.1) from Prochlorococcus sp. NATL2A at 1.80 A resolution

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2it9a1	Alpha and beta proteins (a+b)	ssDNA-binding transcriptional regulator domain	ssDNA-binding transcriptional regulator domain	PMN2A0962/syc2379c-like	Hypothetical protein PMN2A_0962	(Prochlorococcus marinus str. NATL2A ) [TaxId: 59920 ],	SCOPe (2.08)
A	d2it9a2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Prochlorococcus marinus str. NATL2A ) [TaxId: 59920 ],	SCOPe (2.08)
B	d2it9b_	Alpha and beta proteins (a+b)	ssDNA-binding transcriptional regulator domain	ssDNA-binding transcriptional regulator domain	PMN2A0962/syc2379c-like	Hypothetical protein PMN2A_0962	(Prochlorococcus marinus str. NATL2A ) [TaxId: 59920 ],	SCOPe (2.08)
C	d2it9c_	Alpha and beta proteins (a+b)	ssDNA-binding transcriptional regulator domain	ssDNA-binding transcriptional regulator domain	PMN2A0962/syc2379c-like	Hypothetical protein PMN2A_0962	(Prochlorococcus marinus str. NATL2A ) [TaxId: 59920 ],	SCOPe (2.08)
D	d2it9d_	Alpha and beta proteins (a+b)	ssDNA-binding transcriptional regulator domain	ssDNA-binding transcriptional regulator domain	PMN2A0962/syc2379c-like	Hypothetical protein PMN2A_0962	(Prochlorococcus marinus str. NATL2A ) [TaxId: 59920 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	ssDNA-binding transcriptional regulator domain	8042845	3000513	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	ssDNA-binding transcriptional regulator domain	8042845	3000513	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	ssDNA-binding transcriptional regulator domain	8042845	3000513	SCOP2B (2022-06-29)
D	SCOP2 Family	PMN2A0962/syc2379c-like	8030466	4003409	SCOP2 (2022-06-29)
D	SCOP2 Superfamily	ssDNA-binding transcriptional regulator domain	8042845	3000513	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)
A	DUF1818	e2it9A1	A: a+b two layers	X: ssDNA-binding transcriptional regulator domain-like	H: ssDNA-binding transcriptional regulator domain (From Topology)	T: ssDNA-binding transcriptional regulator domain	F: DUF1818	ECOD (1.6)
B	DUF1818	e2it9B1	A: a+b two layers	X: ssDNA-binding transcriptional regulator domain-like	H: ssDNA-binding transcriptional regulator domain (From Topology)	T: ssDNA-binding transcriptional regulator domain	F: DUF1818	ECOD (1.6)
C	DUF1818	e2it9C1	A: a+b two layers	X: ssDNA-binding transcriptional regulator domain-like	H: ssDNA-binding transcriptional regulator domain (From Topology)	T: ssDNA-binding transcriptional regulator domain	F: DUF1818	ECOD (1.6)
D	DUF1818	e2it9D1	A: a+b two layers	X: ssDNA-binding transcriptional regulator domain-like	H: ssDNA-binding transcriptional regulator domain (From Topology)	T: ssDNA-binding transcriptional regulator domain	F: DUF1818	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.30.31.10	Mainly Beta	Roll	Transcriptional Co-activator pc4	Chain A	CATH (4.3.0)
B	2.30.31.10	Mainly Beta	Roll	Transcriptional Co-activator pc4	Chain A	CATH (4.3.0)
C	2.30.31.10	Mainly Beta	Roll	Transcriptional Co-activator pc4	Chain A	CATH (4.3.0)
D	2.30.31.10	Mainly Beta	Roll	Transcriptional Co-activator pc4	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF08848	Domain of unknown function (DUF1818) (DUF1818)	Domain of unknown function (DUF1818)	This presumed domain is found in a small family of cyanobacterial protein. These proteins are functionally uncharacterised.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Hypothetical protein	DNA binding binding organic cyclic compound binding nucleic acid binding	regulation of cellular process cellular biosynthetic process RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process organic substance metabolic process organic substance biosynthetic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of cellular process cellular biosynthetic process RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process organic substance metabolic process organic substance biosynthetic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of biological process cellular metabolic process biological regulation primary metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process cellular process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR009044	ssDNA-binding transcriptional regulator	Homologous Superfamily
A, B, C, D	IPR014947	Protein of unknown function DUF1818	Family

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.