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6I1L

Crystal structure of FnCas12a in complex with a crRNA guide and ssDNA 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
D0003677molecular_functionDNA binding
D0003723molecular_functionRNA binding
D0004518molecular_functionnuclease activity
D0004519molecular_functionendonuclease activity
D0004530molecular_functiondeoxyribonuclease I activity
D0006259biological_processDNA metabolic process
D0016787molecular_functionhydrolase activity
D0016829molecular_functionlyase activity
D0051607biological_processdefense response to virus
Functional Information from PDB Data
site_idAC1
Number of Residues6
Detailsbinding site for residue MG A 1401
ChainResidue
AASN602
ATHR604
AASP616
AHOH1510
AHOH1530
AHOH1536

site_idAC2
Number of Residues6
Detailsbinding site for residue MG A 1402
ChainResidue
AHOH1526
AHOH1535
AHOH1540
AHOH1501
AHOH1503
AHOH1521

site_idAC3
Number of Residues6
Detailsbinding site for residue MG A 1403
ChainResidue
ACYS70
AHOH1538
AHOH1541
AHOH1542
AHOH1544
AHOH1545

site_idAC4
Number of Residues6
Detailsbinding site for residue MG A 1404
ChainResidue
AARG800
AHOH1502
AHOH1523
BA-3
BHOH203
BHOH205

site_idAC5
Number of Residues4
Detailsbinding site for residue CIT A 1405
ChainResidue
ATYR773
ASER776
AGLN780
ALYS782

site_idAC6
Number of Residues4
Detailsbinding site for residue CIT A 1406
ChainResidue
ALEU13
ASER14
AGLU1062
BA1

site_idAC7
Number of Residues5
Detailsbinding site for residue CIT A 1407
ChainResidue
AALA1079
APHE1081
ATHR1082
ASER1083
ALYS1084

site_idAC8
Number of Residues2
Detailsbinding site for residue K A 1408
ChainResidue
AILE586
AGLN588

site_idAC9
Number of Residues2
Detailsbinding site for residue K A 1409
ChainResidue
AHIS990
BA-1

site_idAD1
Number of Residues3
Detailsbinding site for residue K A 1410
ChainResidue
AARG18
BU-15
BCIT102

site_idAD2
Number of Residues3
Detailsbinding site for residue K A 1411
ChainResidue
ALEU66
AVAL69
ATYR248

site_idAD3
Number of Residues1
Detailsbinding site for residue K A 1412
ChainResidue
AASP261

site_idAD4
Number of Residues6
Detailsbinding site for residue MG B 101
ChainResidue
AHOH1529
BHOH201
BHOH204
BHOH206
BHOH208
BHOH210

site_idAD5
Number of Residues4
Detailsbinding site for residue CIT B 102
ChainResidue
AARG18
AARG833
AK1410
BU-14

site_idAD6
Number of Residues2
Detailsbinding site for residue CIT B 103
ChainResidue
ALYS852
BA-18

site_idAD7
Number of Residues1
Detailsbinding site for residue K B 104
ChainResidue
BA-1

site_idAD8
Number of Residues6
Detailsbinding site for residue MG D 1401
ChainResidue
DASN602
DTHR604
DASP616
DHOH1510
DHOH1519
DHOH1522

site_idAD9
Number of Residues6
Detailsbinding site for residue MG D 1402
ChainResidue
DARG800
DHOH1507
DHOH1515
EA-3
EHOH201
EHOH204

site_idAE1
Number of Residues6
Detailsbinding site for residue MG D 1403
ChainResidue
DHOH1502
DHOH1505
DHOH1506
DHOH1525
DHOH1526
EHOH210

site_idAE2
Number of Residues4
Detailsbinding site for residue CIT D 1404
ChainResidue
DTYR773
DSER776
DGLN780
DLYS782

site_idAE3
Number of Residues4
Detailsbinding site for residue CIT D 1405
ChainResidue
DARG18
DARG833
DK1408
EU-14

site_idAE4
Number of Residues5
Detailsbinding site for residue CIT D 1406
ChainResidue
DGLY174
DTRP175
DTHR176
DTHR177
DHOH1510

site_idAE5
Number of Residues2
Detailsbinding site for residue K D 1407
ChainResidue
DARG43
DSER171

site_idAE6
Number of Residues2
Detailsbinding site for residue K D 1408
ChainResidue
DHIS881
DCIT1405

site_idAE7
Number of Residues1
Detailsbinding site for residue K D 1409
ChainResidue
DTHR160

site_idAE8
Number of Residues2
Detailsbinding site for residue K D 1410
ChainResidue
DSER603
DLYS635

site_idAE9
Number of Residues2
Detailsbinding site for residue K D 1411
ChainResidue
DGLU1033
ECIT102

site_idAF1
Number of Residues6
Detailsbinding site for residue MG E 101
ChainResidue
DHOH1524
EHOH202
EHOH203
EHOH206
EHOH207
EHOH211

site_idAF2
Number of Residues4
Detailsbinding site for residue CIT E 102
ChainResidue
DLEU13
DSER14
DK1411
EA1

site_idAF3
Number of Residues3
Detailsbinding site for residue CIT E 103
ChainResidue
DGLU1033
EA1
EG2

site_idAF4
Number of Residues4
Detailsbinding site for residue CIT E 104
ChainResidue
DASN683
DHIS843
DLYS852
EA-18

site_idAF5
Number of Residues2
Detailsbinding site for residue K E 105
ChainResidue
EC-13
EU-14

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues628
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 Residues16
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 Residues8
DetailsRegion: {"description":"Binds DNA in crRNA-target DNA heteroduplex","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues6
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 Residues6
DetailsRegion: {"description":"Binds crRNA in crRNA-target DNA heteroduplex","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues16
DetailsRegion: {"description":"Binds crRNA","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues140
DetailsRegion: {"description":"Wedge region 2","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000303"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000303"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues34
DetailsRegion: {"description":"LKL, important for PAM recognition and DNA unwinding","evidences":[{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues198
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_FI10
Number of Residues12
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_FI11
Number of Residues24
DetailsRegion: {"description":"Binds single-strand non-target DNA","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI12
Number of Residues20
DetailsRegion: {"description":"Binds crRNA","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI13
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_FI14
Number of Residues34
DetailsRegion: {"description":"Bridge helix","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000303"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000303"}]}
ChainResidueDetails

site_idSWS_FT_FI15
Number of Residues6
DetailsActive site: {"description":"For pre-crRNA processing","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI16
Number of Residues6
DetailsActive site: {"description":"For DNase activity of RuvC domain","evidences":[{"source":"PubMed","id":"26422227","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI17
Number of Residues2
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_FI18
Number of Residues2
DetailsSite: {"description":"Binds target strand DNA","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI19
Number of Residues2
DetailsSite: {"description":"Binds crRNA in crRNA-target DNA heteroduplex","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI20
Number of Residues6
DetailsSite: {"description":"Binds DNA in crRNA-target DNA heteroduplex","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI21
Number of Residues2
DetailsSite: {"description":"Caps the crRNA-target DNA heteroduplex","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI22
Number of Residues2
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_FI23
Number of Residues2
DetailsSite: {"description":"Binds Target strand DNA","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI24
Number of Residues2
DetailsSite: {"description":"Binds PAM","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI25
Number of Residues4
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_FI26
Number of Residues2
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_FI27
Number of Residues2
DetailsSite: {"description":"Binds crRNA","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI28
Number of Residues2
DetailsSite: {"description":"Stabilizes transition state for pre-crRNA processing","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI29
Number of Residues4
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

site_idSWS_FT_FI30
Number of Residues129
DetailsRegion: {"description":"Wedge region 3","evidences":[{"source":"PubMed","id":"28431230","evidenceCode":"ECO:0000303"},{"source":"PubMed","id":"28562584","evidenceCode":"ECO:0000303"}]}
ChainResidueDetails

249697

PDB entries from 2026-02-25

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