The crystal structure of Hfq from Caulobacter crescentus


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

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Xd6gwkx_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Wd6gwkw_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Vd6gwkv_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Ud6gwku_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Td6gwkt_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Sd6gwks_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Rd6gwkr_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Qd6gwkq_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Pd6gwkp_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Od6gwko_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Nd6gwkn_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Md6gwkm_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Ld6gwkl_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Kd6gwkk_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Jd6gwkj_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Id6gwki_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Hd6gwkh_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Gd6gwkg_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Fd6gwkf_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Ed6gwke_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Dd6gwkd_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Cd6gwkc_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Bd6gwkb_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)
Ad6gwka_ All beta proteins Sm-like fold Sm-like ribonucleoproteins automated matches automated matches (Caulobacter vibrioides CB15 ) [TaxId: 190650 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
XSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
WSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
VSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
USCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
TSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
SSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
RSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
QSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
PSCOP2 FamilyPleiotropic translational regulator Hfq 8095202 4002164 SCOP2 (2022-06-29)
PSCOP2 SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2 (2022-06-29)
OSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
NSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
MSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
LSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
JSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
ISCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
HSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
GSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
FSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
ESCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
DSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
CSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
BSCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)
ASCOP2B SuperfamilySm-like ribonucleoproteins 8095203 3000419 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
XHH_signale6gwkX1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
WHH_signale6gwkW1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
VHH_signale6gwkV1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
UHH_signale6gwkU1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
THH_signale6gwkT1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
SHH_signale6gwkS1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
RHH_signale6gwkR1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
QHH_signale6gwkQ1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
PHH_signale6gwkP1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
OHH_signale6gwkO1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
NHH_signale6gwkN1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
MHH_signale6gwkM1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
LHH_signale6gwkL1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
KHH_signale6gwkK1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
JHH_signale6gwkJ1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
IHH_signale6gwkI1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
HHH_signale6gwkH1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
GHH_signale6gwkG1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
FHH_signale6gwkF1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
EHH_signale6gwkE1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
DHH_signale6gwkD1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
CHH_signale6gwkC1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)
BtRNA-synt_1ge6gwkB1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: tRNA-synt_1gECOD (v294.2)
AHH_signale6gwkA1 A: beta barrelsX: P-loop domains-likeH: beta-helix of amnionless (AMN) extracellular domainT: beta-helix of amnionless (AMN) extracellular domainF: HH_signalECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
X2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
W2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
V2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
U2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
T2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
S2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
R2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
Q2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
P2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
O2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
N2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
M2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
L2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
K2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
J2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
I2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
H2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
G2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
F2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
E2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
D2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
C2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
B2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)
A2.30.30.100 Mainly Beta Roll SH3 type barrels. CATH (utative)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B, C, D, E
PF17209Hfq protein (Hfq)Hfq proteinThis entry represents the RNA-binding pleiotropic regulator Hfq, a small, Sm-like protein of bacteria [1]. It helps pair regulatory non-coding RNAs with complementary mRNA target regions. It enhances the elongation of poly(A) tails on mRNA [2]. It ap ...This entry represents the RNA-binding pleiotropic regulator Hfq, a small, Sm-like protein of bacteria [1]. It helps pair regulatory non-coding RNAs with complementary mRNA target regions. It enhances the elongation of poly(A) tails on mRNA [2]. It appears also to protect RNase E recognition sites (A/U-rich sequences with adjacent stem-loop structures) from cleavage [3]. Being pleiotropic, it differs in some of its activities in different species. Hfq binds the non-coding regulatory RNA DsrA (see Rfam:RF00014) in the few species known to have it: Escherichia coli, Shigella flexneri, Salmonella spp. In Azorhizobium caulinodans, an hfq mutant is unable to express nifA, and Hfq is called NrfA, for nif regulatory factor [4]. The name Hfq reflects phenomenology as a host factor for phage Q-beta RNA replication.
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B, C, D, E
RNA-binding protein Hfq

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A, B, C, D, E
IPR010920LSM domain superfamilyHomologous Superfamily
A, B, C, D, E
IPR005001RNA-binding protein HfqFamily
A, B, C, D, E
IPR047575Sm domainDomain