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6I1K

Crystal structure of catalytically inactive FnCas12a in complex with a crRNA guide and a dsDNA target

Functional Information from GO Data
ChainGOidnamespacecontents
A0003677molecular_functionDNA binding
A0003723molecular_functionRNA binding
A0004518molecular_functionnuclease activity
A0004519molecular_functionendonuclease activity
A0004530molecular_functiondeoxyribonuclease I activity
A0006259biological_processDNA metabolic process
A0016787molecular_functionhydrolase activity
A0016829molecular_functionlyase activity
A0051607biological_processdefense response to virus
Functional Information from PDB Data
site_idAC1
Number of Residues8
Detailsbinding site for residue MG A 1401
ChainResidue
AASP792
AARG800
AHOH1502
AHOH1507
BU-4
BA-3
BHOH201
BHOH203

site_idAC2
Number of Residues6
Detailsbinding site for residue MG A 1402
ChainResidue
AHOH1519
AHOH1524
AHOH1530
AHOH1545
BHOH204
AHOH1517

site_idAC3
Number of Residues6
Detailsbinding site for residue MG A 1403
ChainResidue
AASN700
AHOH1529
DHOH101
DHOH103
DHOH105
DHOH106

site_idAC4
Number of Residues6
Detailsbinding site for residue MG A 1404
ChainResidue
AGLU827
AHOH1501
AHOH1516
AHOH1536
AHOH1539
AHOH1540

site_idAC5
Number of Residues6
Detailsbinding site for residue MG A 1405
ChainResidue
ALEU66
ASER67
AVAL69
ATYR248
AASN270
AHOH1512

site_idAC6
Number of Residues7
Detailsbinding site for residue MG A 1406
ChainResidue
AASN602
ATHR604
AASP616
ALYS635
AHOH1521
DHOH102
DHOH104

site_idAC7
Number of Residues6
Detailsbinding site for residue MG A 1407
ChainResidue
AHOH1527
AHOH1528
AHOH1532
AHOH1533
AHOH1546
BHOH216

site_idAC8
Number of Residues4
Detailsbinding site for residue MG A 1408
ChainResidue
APHE153
AASN156
AILE159
ATHR160

site_idAC9
Number of Residues3
Detailsbinding site for residue MG A 1409
ChainResidue
ATRP175
AGLU601
ASER603

site_idAD1
Number of Residues4
Detailsbinding site for residue EDO A 1410
ChainResidue
AGLU756
AASN759
AGLN760
ALYS889

site_idAD2
Number of Residues2
Detailsbinding site for residue EDO A 1411
ChainResidue
ASER12
APHE888

site_idAD3
Number of Residues6
Detailsbinding site for residue EDO A 1412
ChainResidue
ALYS32
AGLY35
ALEU36
AILE37
ALEU38
ALYS435

site_idAD4
Number of Residues5
Detailsbinding site for residue EDO A 1413
ChainResidue
AASN305
ALYS317
ALYS320
CDG-17
CDA-16

site_idAD5
Number of Residues4
Detailsbinding site for residue EDO A 1414
ChainResidue
AARG18
ALYS595
AHIS881
BU-15

site_idAD6
Number of Residues6
Detailsbinding site for residue MG B 101
ChainResidue
AHOH1525
AHOH1543
BHOH202
BHOH205
BHOH208
BHOH213

site_idAD7
Number of Residues6
Detailsbinding site for residue MG B 102
ChainResidue
AHOH1534
AHOH1541
BA6
BHOH209
BHOH212
BHOH214

site_idAD8
Number of Residues2
Detailsbinding site for residue EDO B 103
ChainResidue
BU4
BU5

site_idAD9
Number of Residues3
Detailsbinding site for residue EDO B 104
ChainResidue
BA8
BA9
BEDO105

site_idAE1
Number of Residues3
Detailsbinding site for residue EDO B 105
ChainResidue
BG10
BEDO104
BEDO107

site_idAE2
Number of Residues3
Detailsbinding site for residue EDO B 106
ChainResidue
BA19
BU20
BHOH204

site_idAE3
Number of Residues3
Detailsbinding site for residue EDO B 107
ChainResidue
BG10
BG11
BEDO105

site_idAE4
Number of Residues1
Detailsbinding site for residue EDO B 108
ChainResidue
BA7

site_idAE5
Number of Residues1
Detailsbinding site for residue EDO C 101
ChainResidue
CDT-1

site_idAE6
Number of Residues2
Detailsbinding site for residue EDO C 102
ChainResidue
CDT-14
CDA-15

site_idAE7
Number of Residues4
Detailsbinding site for residue EDO C 103
ChainResidue
CDG4
CDG5
CDA6
DDT-6

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues314
DetailsRegion: {"description":"Recognition domain 1","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000303"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000303"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues8
DetailsRegion: {"description":"Binds crRNA alone and in crRNA-target DNA heteroduplex","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsRegion: {"description":"Binds DNA in crRNA-target DNA heteroduplex","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues3
DetailsRegion: {"description":"Binds crRNA in crRNA-target DNA heteroduplex","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues251
DetailsRegion: {"description":"Recognition domain 2","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000303"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000303"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues3
DetailsRegion: {"description":"Binds crRNA in crRNA-target DNA heteroduplex","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues8
DetailsRegion: {"description":"Binds crRNA","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues70
DetailsRegion: {"description":"Wedge region 2","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000303"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000303"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues17
DetailsRegion: {"description":"LKL, important for PAM recognition and DNA unwinding","evidences":[{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues99
DetailsRegion: {"description":"PAM-interacting domain (PI)","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000303"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000303"}]}
ChainResidueDetails

site_idSWS_FT_FI11
Number of Residues6
DetailsRegion: {"description":"Binds DNA protospacer adjacent motif (PAM) on target DNA","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI12
Number of Residues12
DetailsRegion: {"description":"Binds single-strand non-target DNA","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI13
Number of Residues8
DetailsRegion: {"description":"Binds crRNA","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI14
Number of Residues60
DetailsRegion: {"description":"RuvC-I","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000303"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000303"}]}
ChainResidueDetails

site_idSWS_FT_FI15
Number of Residues17
DetailsRegion: {"description":"Bridge helix","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000303"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000303"}]}
ChainResidueDetails

site_idSWS_FT_FI16
Number of Residues106
DetailsRegion: {"description":"RuvC-II","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000303"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000303"}]}
ChainResidueDetails

site_idSWS_FT_FI17
Number of Residues45
DetailsRegion: {"description":"RuvC-III","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000303"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000303"}]}
ChainResidueDetails

site_idSWS_FT_FI18
Number of Residues3
DetailsActive site: {"description":"For pre-crRNA processing","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI19
Number of Residues3
DetailsActive site: {"description":"For DNase activity of RuvC domain","evidences":[{"source":"PubMed","id":"26422227","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI20
Number of Residues1
DetailsSite: {"description":"Binds crRNA alone and in crRNA-target DNA heteroduplex","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI21
Number of Residues1
DetailsSite: {"description":"Binds target strand DNA","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI22
Number of Residues1
DetailsSite: {"description":"Binds crRNA in crRNA-target DNA heteroduplex","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI23
Number of Residues3
DetailsSite: {"description":"Binds DNA in crRNA-target DNA heteroduplex","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI24
Number of Residues1
DetailsSite: {"description":"Caps the crRNA-target DNA heteroduplex","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI25
Number of Residues1
DetailsSite: {"description":"Binds DNA protospacer adjacent motif (PAM)","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI26
Number of Residues1
DetailsSite: {"description":"Binds Target strand DNA","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI27
Number of Residues1
DetailsSite: {"description":"Binds PAM","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI28
Number of Residues2
DetailsSite: {"description":"Binds Target strand DNA","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI29
Number of Residues1
DetailsSite: {"description":"Binds Target strand DNA; via amide nitrogen","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI30
Number of Residues1
DetailsSite: {"description":"Binds crRNA","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI31
Number of Residues1
DetailsSite: {"description":"Stabilizes transition state for pre-crRNA processing","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI32
Number of Residues2
DetailsSite: {"description":"Binds DNA in crRNA-target DNA heteroduplex","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

249697

PDB entries from 2026-02-25

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