ID   SRP19_SACS2             Reviewed;         102 AA.
AC   Q980W2;
DT   20-JUN-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2001, sequence version 1.
DT   25-MAY-2022, entry version 95.
DE   RecName: Full=Signal recognition particle 19 kDa protein {ECO:0000255|HAMAP-Rule:MF_00305};
DE            Short=SRP19 {ECO:0000255|HAMAP-Rule:MF_00305};
GN   Name=srp19 {ECO:0000255|HAMAP-Rule:MF_00305}; OrderedLocusNames=SSO0165;
OS   Saccharolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)
OS   (Sulfolobus solfataricus).
OC   Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae;
OC   Saccharolobus.
OX   NCBI_TaxID=273057;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 35092 / DSM 1617 / JCM 11322 / P2;
RX   PubMed=11427726; DOI=10.1073/pnas.141222098;
RA   She Q., Singh R.K., Confalonieri F., Zivanovic Y., Allard G., Awayez M.J.,
RA   Chan-Weiher C.C.-Y., Clausen I.G., Curtis B.A., De Moors A., Erauso G.,
RA   Fletcher C., Gordon P.M.K., Heikamp-de Jong I., Jeffries A.C., Kozera C.J.,
RA   Medina N., Peng X., Thi-Ngoc H.P., Redder P., Schenk M.E., Theriault C.,
RA   Tolstrup N., Charlebois R.L., Doolittle W.F., Duguet M., Gaasterland T.,
RA   Garrett R.A., Ragan M.A., Sensen C.W., Van der Oost J.;
RT   "The complete genome of the crenarchaeon Sulfolobus solfataricus P2.";
RL   Proc. Natl. Acad. Sci. U.S.A. 98:7835-7840(2001).
CC   -!- FUNCTION: Involved in targeting and insertion of nascent membrane
CC       proteins into the cytoplasmic membrane. Binds directly to 7S RNA and
CC       mediates binding of the 54 kDa subunit of the SRP. {ECO:0000255|HAMAP-
CC       Rule:MF_00305}.
CC   -!- SUBUNIT: Part of the signal recognition particle protein translocation
CC       system, which is composed of SRP and FtsY. Archaeal SRP consists of a
CC       7S RNA molecule of 300 nucleotides and two protein subunits: SRP54 and
CC       SRP19. {ECO:0000255|HAMAP-Rule:MF_00305}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00305}.
CC   -!- SIMILARITY: Belongs to the SRP19 family. {ECO:0000255|HAMAP-
CC       Rule:MF_00305}.
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DR   EMBL; AE006641; AAK40510.1; -; Genomic_DNA.
DR   PIR; G90156; G90156.
DR   RefSeq; WP_009990389.1; NC_002754.1.
DR   PDB; 3KTW; X-ray; 3.20 A; A/B=2-102.
DR   PDBsum; 3KTW; -.
DR   AlphaFoldDB; Q980W2; -.
DR   SMR; Q980W2; -.
DR   STRING; 273057.SSO0165; -.
DR   EnsemblBacteria; AAK40510; AAK40510; SSO0165.
DR   GeneID; 44129128; -.
DR   KEGG; sso:SSO0165; -.
DR   PATRIC; fig|273057.12.peg.161; -.
DR   eggNOG; arCOG01217; Archaea.
DR   HOGENOM; CLU_169299_1_0_2; -.
DR   OMA; WLAYFTA; -.
DR   EvolutionaryTrace; Q980W2; -.
DR   Proteomes; UP000001974; Chromosome.
DR   GO; GO:0048500; C:signal recognition particle; IEA:UniProtKB-UniRule.
DR   GO; GO:0008312; F:7S RNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006614; P:SRP-dependent cotranslational protein targeting to membrane; IEA:InterPro.
DR   Gene3D; 3.30.56.30; -; 1.
DR   HAMAP; MF_00305; SRP19; 1.
DR   InterPro; IPR002778; Signal_recog_particle_SRP19.
DR   InterPro; IPR036521; SRP19-like_sf.
DR   InterPro; IPR022938; SRP19_arc-type.
DR   Pfam; PF01922; SRP19; 1.
DR   SUPFAM; SSF69695; SSF69695; 1.
PE   1: Evidence at protein level;
KW   3D-structure; Cytoplasm; Reference proteome; Ribonucleoprotein;
KW   RNA-binding; Signal recognition particle.
FT   CHAIN           1..102
FT                   /note="Signal recognition particle 19 kDa protein"
FT                   /id="PRO_0000135225"
FT   HELIX           5..9
FT                   /evidence="ECO:0007829|PDB:3KTW"
FT   STRAND          11..14
FT                   /evidence="ECO:0007829|PDB:3KTW"
FT   HELIX           17..20
FT                   /evidence="ECO:0007829|PDB:3KTW"
FT   TURN            24..27
FT                   /evidence="ECO:0007829|PDB:3KTW"
FT   HELIX           39..48
FT                   /evidence="ECO:0007829|PDB:3KTW"
FT   STRAND          54..56
FT                   /evidence="ECO:0007829|PDB:3KTW"
FT   STRAND          70..74
FT                   /evidence="ECO:0007829|PDB:3KTW"
FT   STRAND          76..78
FT                   /evidence="ECO:0007829|PDB:3KTW"
FT   HELIX           79..90
FT                   /evidence="ECO:0007829|PDB:3KTW"
SQ   SEQUENCE   102 AA;  12029 MW;  7AD3F7178B42AA40 CRC64;
     MSLRDLKEEN RIVIWPSYFF SPTRSKGRRL ARIPYKIKTE ELVSTLRELG LDPIVIENKK
     YPRDRKINFL IAVKKVKSKN YTLKIIHNAL MGTRQTNPNK SN