2V1X - JenaLib

Asymmetric Unit (Jmol Viewer)

Asym. Unit - sites (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biol. Unit 1 - sites (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF HUMAN RECQ-LIKE DNA HELICASE

Authors :   A. C. W. Pike, B. Shrestha, N. Burgess-Brown, O. King, E. Ugochukwu, S. W A. Edwards, C. H. Arrowsmith, J. Weigelt, M. Sundstrom, O. Gileadi

Date :   30 May 07 (Deposition) - 03 Jul 07 (Release) - 21 Jan 15 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.00

Chains :   Asym. Unit : A,B
Biol. Unit 1: A  (1x)
Biol. Unit 2: B  (1x)

Keywords :   Dna Strand Annealing, Mismatch Repair, Nucleotide-Binding, Dna-Binding, Nuclear Protein, Atpase, Helicase, Hydrolase, Atp-Binding (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   A. C. W. Pike, B. Shrestha, V. Popuri, N. Burgess-Brown, L. Muzzolini, S. Costantini, A. Vindigni, O. Gileadi
Structure Of The Human Recq1 Helicase Reveals A Putative Strand-Separation Pin.
Proc. Natl. Acad. Sci. Usa V. 106 1039 2009
PubMed-ID: 19151156 | Reference-DOI: 10.1073/PNAS.0806908106

Molecule 1 - ATP-DEPENDENT DNA HELICASE Q1
	Chains	:	A, B
	EC Number	:	3.6.1.-
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PNIC-CTHF
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	469008
	Expression System Variant	:	R3-PRARE2
	Fragment	:	RESIDUES 49-616
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Synonym	:	DNA-DEPENDENT ATPASE Q1, RECQ DNA HELICASE

		1	2
Asymmetric Unit	:	A	B
Biological Unit 1 (1x)	:	A
Biological Unit 2 (1x)	:		B

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (5, 17)

No.	Name	Count	Type	Full Name
1	ADP	2	Ligand/Ion	ADENOSINE-5'-DIPHOSPHATE
2	CL	9	Ligand/Ion	CHLORIDE ION
3	EDO	2	Ligand/Ion	1,2-ETHANEDIOL
4	MG	2	Ligand/Ion	MAGNESIUM ION
5	ZN	2	Ligand/Ion	ZINC ION

Biological Unit 1 (1, 1)

No.	Name	Count	Type	Full Name
1	ADP	1	Ligand/Ion	ADENOSINE-5'-DIPHOSPHATE
2	CL	-1	Ligand/Ion	CHLORIDE ION
3	EDO	-1	Ligand/Ion	1,2-ETHANEDIOL
4	MG	-1	Ligand/Ion	MAGNESIUM ION
5	ZN	-1	Ligand/Ion	ZINC ION

Biological Unit 2 (2, 3)

No.	Name	Count	Type	Full Name
1	ADP	1	Ligand/Ion	ADENOSINE-5'-DIPHOSPHATE
2	CL	-1	Ligand/Ion	CHLORIDE ION
3	EDO	2	Ligand/Ion	1,2-ETHANEDIOL
4	MG	-1	Ligand/Ion	MAGNESIUM ION
5	ZN	-1	Ligand/Ion	ZINC ION

Asymmetric Unit (17, 17)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	SER A:120 , ADP A:1593 , HOH A:2018 , HOH A:2033 , HOH A:2034 , HOH A:2144	BINDING SITE FOR RESIDUE MG A1594
02	AC2	SOFTWARE	CYS A:453 , CYS A:471 , CYS A:475 , CYS A:478	BINDING SITE FOR RESIDUE ZN A1595
03	AC3	SOFTWARE	HIS A:357 , ASP A:379 , LYS A:380	BINDING SITE FOR RESIDUE CL A1596
04	AC4	SOFTWARE	GLU A:485	BINDING SITE FOR RESIDUE CL A1597
05	AC5	SOFTWARE	THR A:115 , TYR A:399	BINDING SITE FOR RESIDUE CL A1598
06	AC6	SOFTWARE	ARG A:486 , GLN A:589 , HOH A:2037	BINDING SITE FOR RESIDUE CL A1599
07	AC7	SOFTWARE	ADP B:1593 , HOH B:2027 , HOH B:2037 , HOH B:2038 , HOH B:2162 , HOH B:2165	BINDING SITE FOR RESIDUE MG B1594
08	AC8	SOFTWARE	CYS B:453 , CYS B:471 , CYS B:475 , CYS B:478	BINDING SITE FOR RESIDUE ZN B1595
09	AC9	SOFTWARE	GLN B:324 , ALA B:346 , THR B:371	BINDING SITE FOR RESIDUE CL B1596
10	BC1	SOFTWARE	GLN B:324	BINDING SITE FOR RESIDUE CL B1597
11	BC2	SOFTWARE	HIS B:357 , ILE B:378 , ASP B:379 , LYS B:380	BINDING SITE FOR RESIDUE CL B1598
12	BC3	SOFTWARE	THR B:115 , TYR B:399	BINDING SITE FOR RESIDUE CL B1599
13	BC4	SOFTWARE	GLN B:589	BINDING SITE FOR RESIDUE CL B1600
14	BC5	SOFTWARE	LEU A:89 , LYS A:91 , ARG A:93 , GLN A:96 , PRO A:114 , THR A:115 , GLY A:116 , GLY A:117 , GLY A:118 , LYS A:119 , SER A:120 , ASP A:379 , MG A:1594 , HOH A:2011 , HOH A:2018 , HOH A:2033 , HOH A:2144 , HOH A:2145 , HOH A:2146	BINDING SITE FOR RESIDUE ADP A1593
15	BC6	SOFTWARE	LEU B:89 , LYS B:91 , ARG B:93 , GLN B:96 , THR B:115 , GLY B:116 , GLY B:117 , GLY B:118 , LYS B:119 , SER B:120 , ASP B:379 , MG B:1594 , HOH B:2027 , HOH B:2160 , HOH B:2161 , HOH B:2162 , HOH B:2163 , HOH B:2164 , HOH B:2165 , HOH B:2166	BINDING SITE FOR RESIDUE ADP B1593
16	BC7	SOFTWARE	GLN B:292 , TYR B:418 , PHE B:420 , GLU B:540 , GLU B:543 , HOH B:2167	BINDING SITE FOR RESIDUE EDO B1601
17	BC8	SOFTWARE	PHE B:424 , SER B:428 , ILE B:567 , SER B:568 , HOH B:2169	BINDING SITE FOR RESIDUE EDO B1602

(no "SS Bond" information available for 2V1X)

Asymmetric Unit

No.	Residues
1	Glu A:272	-	Lys A:273
2	Glu B:272	-	Lys B:273

Asymmetric Unit (4, 8)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_034679	V	102	I	RECQ1_HUMAN	Polymorphism	1065751	A/B	V	102	I
2	UniProt	VAR_051732	V	372	I	RECQ1_HUMAN	Polymorphism	2230003	A/B	V	372	I
3	UniProt	VAR_016140	K	487	T	RECQ1_HUMAN	Polymorphism	6501	A/B	K	487	T
4	UniProt	VAR_016141	D	495	H	RECQ1_HUMAN	Polymorphism	6499	A/B	D	495	H

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Biological Unit 1 (4, 4)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_034679	V	102	I	RECQ1_HUMAN	Polymorphism	1065751	A	V	102	I
2	UniProt	VAR_051732	V	372	I	RECQ1_HUMAN	Polymorphism	2230003	A	V	372	I
3	UniProt	VAR_016140	K	487	T	RECQ1_HUMAN	Polymorphism	6501	A	K	487	T
4	UniProt	VAR_016141	D	495	H	RECQ1_HUMAN	Polymorphism	6499	A	D	495	H

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Biological Unit 2 (4, 4)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_034679	V	102	I	RECQ1_HUMAN	Polymorphism	1065751	B	V	102	I
2	UniProt	VAR_051732	V	372	I	RECQ1_HUMAN	Polymorphism	2230003	B	V	372	I
3	UniProt	VAR_016140	K	487	T	RECQ1_HUMAN	Polymorphism	6501	B	K	487	T
4	UniProt	VAR_016141	D	495	H	RECQ1_HUMAN	Polymorphism	6499	B	D	495	H

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(no "PROSITE Motif" information available for 2V1X)

(no "Exon" information available for 2V1X)

Asymmetric Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:527
 aligned with RECQ1_HUMAN | P46063 from UniProtKB/Swiss-Prot  Length:649

    Alignment length:530
                                    72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472       482       492       502       512       522       532       542       552       562       572       582       592
          RECQ1_HUMAN    63 SSPAAWNKEDFPWSGKVKDILQNVFKLEKFRPLQLETINVTMAGKEVFLVMPTGGGKSLCYQLPALCSDGFTLVICPLISLMEDQLMVLKQLGISATMLNASSSKEHVKWVHAEMVNKNSELKLIYVTPEKIAKSKMFMSRLEKAYEARRFTRIAVDEVHCCSQWGHDFRPDYKALGILKRQFPNASLIGLTATATNHVLTDAQKILCIEKCFTFTASFNRPNLYYEVRQKPSNTEDFIEDIVKLINGRYKGQSGIIYCFSQKDSEQVTVSLQNLGIHAGAYHANLEPEDKTTVHRKWSANEIQVVVATVAFGMGIDKPDVRFVIHHSMSKSMENYYQESGRAGRDDMKADCILYYGFGDIFRISSMVVMENVGQQKLYEMVSYCQNISKCRRVLMAQHFDEVWNSEACNKMCDNCCKDSAFERKNITEYCRDLIKILKQAEELNEKLTPLKLIDSWMGKGAAKLRVAGVVAPTLPREDLEKIIAHFLIQQYLKEDYSFTAYATISYLKIGPKANLLNNEAHAITMQVTK 592
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhh.....hhhhhhhhhhhh........hhhhhhhhhhh...eeee.......hhhhhhhhhh...eeeee..hhhhhhhhhhhhhhhh..eee.....hhhhhhhhhhhhhh......eeeehhhhhhhhhhhhhhhhhhhhh..eeeeeee.hhhhh......hhhhhhhhhhhhhh...eeeeee...hhhhhhhhhhhh.....eeee.......eeeeeee...hhhhhhhhhhhhhh......eeeee..hhhhhhhhhhhhhhh...eeee....hhhhhhhhhhhhhh....eeee............eeeeee.....hhhhhhhhhh........eeeeeeehhhhhhhhhhhh....hhhhhhhhhhhhhh....hhhhhhhhhhh...---.....hhhhhh...eeeeehhhhhhhhhhhhhhhhhh....hhhhhhhhhh...hhhhh.........hhhhhhhhhhhhhhh..eeeeeee....eeeeeee.hhhhhhhh.....eeeee. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------I-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------I------------------------------------------------------------------------------------------------------------------T-------H------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2v1x A  63 SSPAAWNKEDFPWSGKVKDILQNVFKLEKFRPLQLETINVTMAGKEVFLVMPTGGGKSLCYQLPALCSDGFTLVICPLISLMEDQLMVLKQLGISATMLNASSSKEHVKWVHAEMVNKNSELKLIYVTPEKIAKSKMFMSRLEKAYEARRFTRIAVDEVHCCSQWGHDFRPDYKALGILKRQFPNASLIGLTATATNHVLTDAQKILCIEKCFTFTASFNRPNLYYEVRQKPSNTEDFIEDIVKLINGRYKGQSGIIYCFSQKDSEQVTVSLQNLGIHAGAYHANLEPEDKTTVHRKWSANEIQVVVATVAFGMGIDKPDVRFVIHHSMSKSMENYYQESGRAGRDDMKADCILYYGFGDIFRISSMVVMENVGQQKLYEMVSYCQNISKCRRVLMAQHFDEVW---ACNKMCDNCCKDSAFERKNITEYCRDLIKILKQAEELNEKLTPLKLIDSWMGKGAAKLRVAGVVAPTLPREDLEKIIAHFLIQQYLKEDYSFTAYATISYLKIGPKANLLNNEAHAITMQVTK 592
                                    72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462   |   472       482       492       502       512       522       532       542       552       562       572       582       592
                                                                                                                                                                                                                                                                                                                                                                                                                                             466 470

Chain B from PDB  Type:PROTEIN  Length:527
 aligned with RECQ1_HUMAN | P46063 from UniProtKB/Swiss-Prot  Length:649

    Alignment length:530
                                    72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472       482       492       502       512       522       532       542       552       562       572       582       592
          RECQ1_HUMAN    63 SSPAAWNKEDFPWSGKVKDILQNVFKLEKFRPLQLETINVTMAGKEVFLVMPTGGGKSLCYQLPALCSDGFTLVICPLISLMEDQLMVLKQLGISATMLNASSSKEHVKWVHAEMVNKNSELKLIYVTPEKIAKSKMFMSRLEKAYEARRFTRIAVDEVHCCSQWGHDFRPDYKALGILKRQFPNASLIGLTATATNHVLTDAQKILCIEKCFTFTASFNRPNLYYEVRQKPSNTEDFIEDIVKLINGRYKGQSGIIYCFSQKDSEQVTVSLQNLGIHAGAYHANLEPEDKTTVHRKWSANEIQVVVATVAFGMGIDKPDVRFVIHHSMSKSMENYYQESGRAGRDDMKADCILYYGFGDIFRISSMVVMENVGQQKLYEMVSYCQNISKCRRVLMAQHFDEVWNSEACNKMCDNCCKDSAFERKNITEYCRDLIKILKQAEELNEKLTPLKLIDSWMGKGAAKLRVAGVVAPTLPREDLEKIIAHFLIQQYLKEDYSFTAYATISYLKIGPKANLLNNEAHAITMQVTK 592
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) ------------------------------DEAD-2v1xB03 B:93-264                                                                                                                                                       -------------------------------------------------------------------Helicase_C-2v1xB05 B:332-409                                                  ------------------------------------------------------------------------------RQC-2v1xB01 B:488-592                                                                                     Pfam domains (1)
           Pfam domains (2) ------------------------------DEAD-2v1xB04 B:93-264                                                                                                                                                       -------------------------------------------------------------------Helicase_C-2v1xB06 B:332-409                                                  ------------------------------------------------------------------------------RQC-2v1xB02 B:488-592                                                                                     Pfam domains (2)
         Sec.struct. author .hhhhhh.....hhhhhhhhhhhh........hhhhhhhhhhh...eeee.......hhhhhhhhhh...eeeee..hhhhhhhhhhhhhhh...eeee....hhhhhhhhhhhhhh......eeee.hhhhhhhhhhhhhhhhhhhh..eeeeeee.hhhhh......hhhhhhhhhhhhhh...eeeeee...hhhhhhhhhhhh.....eeee.......eeeeeee...hhhhhhhhhhhhhh......eeeee..hhhhhhhhhhhhhhh...eeee....hhhhhhhhhhhhhh....eeee............eeeeee.....hhhhhhhhhh........eeeeeeehhhhhhhhhhhh....hhhhhhhhhhhhhhh...hhhhhhhhhhh...---..............eeeeehhhhhhhhhhhhhhhhhh....hhhhhhhhhhh..hhhhh.........hhhhhhhhhhhhhhh..eeeeeeee..eeeeeeee.hhhhhhhh.....eeeee. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------I-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------I------------------------------------------------------------------------------------------------------------------T-------H------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2v1x B  63 SSPAAWNKEDFPWSGKVKDILQNVFKLEKFRPLQLETINVTMAGKEVFLVMPTGGGKSLCYQLPALCSDGFTLVICPLISLMEDQLMVLKQLGISATMLNASSSKEHVKWVHAEMVNKNSELKLIYVTPEKIAKSKMFMSRLEKAYEARRFTRIAVDEVHCCSQWGHDFRPDYKALGILKRQFPNASLIGLTATATNHVLTDAQKILCIEKCFTFTASFNRPNLYYEVRQKPSNTEDFIEDIVKLINGRYKGQSGIIYCFSQKDSEQVTVSLQNLGIHAGAYHANLEPEDKTTVHRKWSANEIQVVVATVAFGMGIDKPDVRFVIHHSMSKSMENYYQESGRAGRDDMKADCILYYGFGDIFRISSMVVMENVGQQKLYEMVSYCQNISKCRRVLMAQHFDEVW---ACNKMCDNCCKDSAFERKNITEYCRDLIKILKQAEELNEKLTPLKLIDSWMGKGAAKLRVAGVVAPTLPREDLEKIIAHFLIQQYLKEDYSFTAYATISYLKIGPKANLLNNEAHAITMQVTK 592
                                    72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462   |   472       482       492       502       512       522       532       542       552       562       572       582       592
                                                                                                                                                                                                                                                                                                                                                                                                                                             466 470

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
		→ Modified Residue	(blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
	x	→ Chemical Group	(purple background, 'x', labelled with number + name, e.g. ACE or NH2)
	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

(no "SCOP Domain" information available for 2V1X)

(no "CATH Domain" information available for 2V1X)

Asymmetric Unit

Clans(

)

Families(

)

Organisms( (-)

)

Clan: HTH (544)

Family: RQC (4)

Homo sapiens (Human) (2)

1a	RQC-2v1xB01	B:488-592
1b	RQC-2v1xB02	B:488-592

Clan: P-loop_NTPase (1112)

Family: DEAD (41)

Homo sapiens (Human) (12)

2a	DEAD-2v1xB03	B:93-264
2b	DEAD-2v1xB04	B:93-264

Family: Helicase_C (51)

Homo sapiens (Human) (15)

3a	Helicase_C-2v1xB05	B:332-409
3b	Helicase_C-2v1xB06	B:332-409

Asymmetric Unit(hide GO term definitions)

Chain A,B (RECQ1_HUMAN | P46063)

molecular function
	GO:0005524	ATP binding	Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
	GO:0043140	ATP-dependent 3'-5' DNA helicase activity	Catalysis of the reaction: ATP + H2O = ADP + phosphate; drives the unwinding of the DNA helix in the direction 3' to 5'.
	GO:0004003	ATP-dependent DNA helicase activity	Catalysis of the reaction: ATP + H2O = ADP + phosphate; this reaction drives the unwinding of the DNA helix.
	GO:0008026	ATP-dependent helicase activity	Catalysis of the reaction: ATP + H2O = ADP + phosphate, to drive the unwinding of a DNA or RNA helix.
	GO:0003677	DNA binding	Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
	GO:0003678	DNA helicase activity	Catalysis of the reaction: NTP + H2O = NDP + phosphate, to drive the unwinding of a DNA helix.
	GO:0036310	annealing helicase activity	Catalysis of the ATP-dependent rewinding of single-stranded DNA (ssDNA) to reform base pairs between strands. Often acts on ssDNA bubbles bound by replication protein A (RPA).
	GO:0009378	four-way junction helicase activity	Catalysis of the unwinding of the DNA helix of DNA containing four-way junctions, including Holliday junctions.
	GO:0004386	helicase activity	Catalysis of the reaction: NTP + H2O = NDP + phosphate, to drive the unwinding of a DNA or RNA helix.
	GO:0016787	hydrolase activity	Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
	GO:0003676	nucleic acid binding	Interacting selectively and non-covalently with any nucleic acid.
	GO:0000166	nucleotide binding	Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
	GO:0005515	protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
biological process
	GO:0032508	DNA duplex unwinding	The process in which interchain hydrogen bonds between two strands of DNA are broken or 'melted', generating a region of unpaired single strands.
	GO:0006310	DNA recombination	Any process in which a new genotype is formed by reassortment of genes resulting in gene combinations different from those that were present in the parents. In eukaryotes genetic recombination can occur by chromosome assortment, intrachromosomal recombination, or nonreciprocal interchromosomal recombination. Intrachromosomal recombination occurs by crossing over. In bacteria it may occur by genetic transformation, conjugation, transduction, or F-duction.
	GO:0006281	DNA repair	The process of restoring DNA after damage. Genomes are subject to damage by chemical and physical agents in the environment (e.g. UV and ionizing radiations, chemical mutagens, fungal and bacterial toxins, etc.) and by free radicals or alkylating agents endogenously generated in metabolism. DNA is also damaged because of errors during its replication. A variety of different DNA repair pathways have been reported that include direct reversal, base excision repair, nucleotide excision repair, photoreactivation, bypass, double-strand break repair pathway, and mismatch repair pathway.
	GO:0000733	DNA strand renaturation	The identification and annealing of complementary base pairs in single-strand DNA.
	GO:0000724	double-strand break repair via homologous recombination	The error-free repair of a double-strand break in DNA in which the broken DNA molecule is repaired using homologous sequences. A strand in the broken DNA searches for a homologous region in an intact chromosome to serve as the template for DNA synthesis. The restoration of two intact DNA molecules results in the exchange, reciprocal or nonreciprocal, of genetic material between the intact DNA molecule and the broken DNA molecule.
cellular component
	GO:0005694	chromosome	A structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information.
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
	GO:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
	GO:0005654	nucleoplasm	That part of the nuclear content other than the chromosomes or the nucleolus.
	GO:0005634	nucleus	A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.

Asymmetric Unit
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	Cis Peptide Bonds
		Glu A:272 - Lys A:273	[ RasMol ]
		Glu B:272 - Lys B:273	[ RasMol ]

Biological Units
	Complete Structure
		Biological Unit 1	[ Jena3D ]
		Biological Unit 2	[ Jena3D ]

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Access by PDB/NDB ID
	2v1x
		Family and Domain Information	:	ProDom \| SYSTERS
		General Structural Information	:	GlycoscienceDB \| MMDB \| NDB \| OCA \| PDB \| PDBe \| PDBj \| PDBsum \| PDBWiki \| PQS \| PROTEOPEDIA
		Orientation in Membranes	:	OPM
		Protein Surface	:	SURFACE
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	RECQ1_HUMAN \| P46063
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	3.6.1.-
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	RECQ1_HUMAN \| P46063
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	RECQ1_HUMAN \| P46063	:	2wwy 4u7d

(no "Related Entries Specified in the PDB File" available for 2V1X)

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (5, 17)

Sites (17, 17)

SS Bonds (0, 0)

Cis Peptide Bonds (2, 2)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (4, 8)

PROSITE Motifs (0, 0)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (0, 0)

CATH Domains (0, 0)

Pfam Domains (3, 6)

Gene Ontology (23, 23)

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Databases

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Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File