ID I3M1W3_ICTTR Unreviewed; 153 AA.
AC I3M1W3;
DT 11-JUL-2012, integrated into UniProtKB/TrEMBL.
DT 11-JUL-2012, sequence version 1.
DT 27-MAR-2024, entry version 55.
DE RecName: Full=H/ACA ribonucleoprotein complex subunit 2 {ECO:0000256|RuleBase:RU366039};
GN Name=NHP2 {ECO:0000313|Ensembl:ENSSTOP00000002881.2};
OS Ictidomys tridecemlineatus (Thirteen-lined ground squirrel) (Spermophilus
OS tridecemlineatus).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Glires; Rodentia; Sciuromorpha; Sciuridae;
OC Xerinae; Marmotini; Ictidomys.
OX NCBI_TaxID=43179 {ECO:0000313|Ensembl:ENSSTOP00000002881.2, ECO:0000313|Proteomes:UP000005215};
RN [1] {ECO:0000313|Proteomes:UP000005215}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RG The Broad Institute Genome Assembly & Analysis Group;
RG Computational R&D Group;
RG and Sequencing Platform;
RA Di Palma F., Alfoldi J., Johnson J., Berlin A., Gnerre S., Jaffe D.,
RA MacCallum I., Young S., Walker B.J., Lindblad-Toh K.;
RT "The Draft Genome of Spermophilus tridecemlineatus.";
RL Submitted (NOV-2011) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|Ensembl:ENSSTOP00000002881.2}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (NOV-2023) to UniProtKB.
CC -!- FUNCTION: Common component of the spliceosome and rRNA processing
CC machinery. {ECO:0000256|RuleBase:RU366039}.
CC -!- FUNCTION: Required for ribosome biogenesis and telomere maintenance.
CC Part of the H/ACA small nucleolar ribonucleoprotein (H/ACA snoRNP)
CC complex, which catalyzes pseudouridylation of rRNA. This involves the
CC isomerization of uridine such that the ribose is subsequently attached
CC to C5, instead of the normal N1. Each rRNA can contain up to 100
CC pseudouridine ('psi') residues, which may serve to stabilize the
CC conformation of rRNAs. May also be required for correct processing or
CC intranuclear trafficking of TERC, the RNA component of the telomerase
CC reverse transcriptase (TERT) holoenzyme.
CC {ECO:0000256|RuleBase:RU366039}.
CC -!- SUBUNIT: Part of the H/ACA small nucleolar ribonucleoprotein (H/ACA
CC snoRNP) complex, which contains NHP2/NOLA2, GAR1/NOLA1, NOP10/NOLA3,
CC and DKC1/NOLA4, which is presumed to be the catalytic subunit. The
CC complex contains a stable core formed by binding of one or two NOP10-
CC DKC1 heterodimers to NHP2; GAR1 subsequently binds to this core via
CC DKC1. The complex binds a box H/ACA small nucleolar RNA (snoRNA), which
CC may target the specific site of modification within the RNA substrate.
CC During assembly, the complex contains NAF1 instead of GAR1/NOLA1. The
CC complex also interacts with TERC, which contains a 3'-terminal domain
CC related to the box H/ACA snoRNAs. Specific interactions with snoRNAs or
CC TERC are mediated by GAR1 and NHP2. Associates with NOLC1/NOPP140.
CC H/ACA snoRNPs interact with the SMN complex, consisting of SMN1 or
CC SMN2, GEMIN2/SIP1, DDX20/GEMIN3, and GEMIN4. This is mediated by
CC interaction between GAR1 and SMN1 or SMN2. The SMN complex may be
CC required for correct assembly of the H/ACA snoRNP complex. Component of
CC the telomerase holoenzyme complex composed of one molecule of TERT, one
CC molecule of WRAP53/TCAB1, two molecules of H/ACA ribonucleoprotein
CC complex subunits DKC1, NOP10, NHP2 and GAR1, and a telomerase RNA
CC template component (TERC). The telomerase holoenzyme complex is
CC associated with TEP1, SMG6/EST1A and POT1.
CC {ECO:0000256|RuleBase:RU366039}.
CC -!- SUBCELLULAR LOCATION: Nucleus, nucleolus
CC {ECO:0000256|ARBA:ARBA00004604, ECO:0000256|RuleBase:RU366039}.
CC -!- SIMILARITY: Belongs to the eukaryotic ribosomal protein eL8 family.
CC {ECO:0000256|ARBA:ARBA00007337, ECO:0000256|RuleBase:RU366039}.
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DR EMBL; AGTP01085649; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR RefSeq; XP_005335789.1; XM_005335732.2.
DR AlphaFoldDB; I3M1W3; -.
DR STRING; 43179.ENSSTOP00000002881; -.
DR Ensembl; ENSSTOT00000003227.3; ENSSTOP00000002881.2; ENSSTOG00000003235.3.
DR GeneID; 101963068; -.
DR CTD; 55651; -.
DR eggNOG; KOG3167; Eukaryota.
DR GeneTree; ENSGT00550000074939; -.
DR HOGENOM; CLU_084513_1_0_1; -.
DR InParanoid; I3M1W3; -.
DR OMA; PIDIMCH; -.
DR OrthoDB; 5481356at2759; -.
DR TreeFam; TF105839; -.
DR Proteomes; UP000005215; Unassembled WGS sequence.
DR GO; GO:0031429; C:box H/ACA snoRNP complex; IEA:Ensembl.
DR GO; GO:0090661; C:box H/ACA telomerase RNP complex; IEA:Ensembl.
DR GO; GO:0034513; F:box H/ACA snoRNA binding; IEA:Ensembl.
DR GO; GO:0070034; F:telomerase RNA binding; IEA:Ensembl.
DR GO; GO:0006364; P:rRNA processing; IEA:UniProtKB-KW.
DR GO; GO:0007004; P:telomere maintenance via telomerase; IEA:Ensembl.
DR Gene3D; 3.30.1330.30; -; 1.
DR InterPro; IPR002415; H/ACA_rnp_Nhp2-like.
DR InterPro; IPR029064; Ribosomal_eL30-like_sf.
DR InterPro; IPR004038; Ribosomal_eL8/eL30/eS12/Gad45.
DR InterPro; IPR018492; Ribosomal_eL8/Nhp2.
DR PANTHER; PTHR23105:SF54; H_ACA RIBONUCLEOPROTEIN COMPLEX SUBUNIT 2; 1.
DR PANTHER; PTHR23105; RIBOSOMAL PROTEIN L7AE FAMILY MEMBER; 1.
DR Pfam; PF01248; Ribosomal_L7Ae; 1.
DR PRINTS; PR00881; L7ARS6FAMILY.
DR PRINTS; PR00883; NUCLEARHMG.
DR SUPFAM; SSF55315; L30e-like; 1.
PE 3: Inferred from homology;
KW Nucleus {ECO:0000256|ARBA:ARBA00023242, ECO:0000256|RuleBase:RU366039};
KW Reference proteome {ECO:0000313|Proteomes:UP000005215};
KW Ribonucleoprotein {ECO:0000256|ARBA:ARBA00023274,
KW ECO:0000256|RuleBase:RU366039};
KW Ribosome biogenesis {ECO:0000256|ARBA:ARBA00022517};
KW RNA-binding {ECO:0000256|RuleBase:RU366039};
KW rRNA processing {ECO:0000256|ARBA:ARBA00022552}.
FT DOMAIN 46..137
FT /note="Ribosomal protein eL8/eL30/eS12/Gadd45"
FT /evidence="ECO:0000259|Pfam:PF01248"
SQ SEQUENCE 153 AA; 17178 MW; 7BF4360EA496AC19 CRC64;
MTKIKADPDG PETPAEACCG ERTYHELLVN LNPIAQPLAS RRLTRKLYKC IKKAVKQKQI
RRGVKEVQKF VNKGEKGIMV LAGDTLPIEV YCHLPVMCED RNLPYVYIPS KTDLGAAAGS
KRPTCVIMVK PHEEYQEAYD ECLEEVQALP PPL
//
