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FBLL1 fibrillarin like rRNA 2'-O-methyltransferase 1 [ Homo sapiens (human) ]

Gene ID: 345630, updated on 3-Mar-2026
Official Symbol
FBLL1provided by HGNC
Official Full Name
fibrillarin like rRNA 2'-O-methyltransferase 1provided by HGNC
Primary source
HGNC:HGNC:35458
See related
Ensembl:ENSG00000188573 AllianceGenome:HGNC:35458
Gene type
protein coding
RefSeq status
VALIDATED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Summary
Predicted to enable RNA binding activity; histone H2A Q104 methyltransferase activity; and rRNA methyltransferase activity. Predicted to be involved in box C/D sno(s)RNA 3'-end processing and rRNA methylation. Predicted to act upstream of or within blastocyst hatching. Located in fibrillar center and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2025]
Orthologs
Try the new Gene page
Try the new Transcripts and proteins table
See FBLL1 in Genome Data Viewer
Location:
5q34
Exon count:
1
Annotation release Status Assembly Chr Location
RS_2025_08 current GRCh38.p14 (GCF_000001405.40) 5 NC_000005.10 (168529305..168530634)
RS_2025_08 current T2T-CHM13v2.0 (GCF_009914755.1) 5 NC_060929.1 (169064086..169065415)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 5 NC_000005.9 (167956310..167957639)

Chromosome 5 - NC_000005.10Genomic Context describing neighboring genes Neighboring gene WW and C2 domain containing 1 Neighboring gene uncharacterized LOC124901129 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr5:167792124-167792657 Neighboring gene MED14-independent group 3 enhancer GRCh37_chr5:167836336-167837535 Neighboring gene Neanderthal introgressed variant-containing enhancer experimental_83602 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 23590 Neighboring gene Neanderthal introgressed variant-containing enhancer experimental_83610 Neighboring gene Neanderthal introgressed variant-containing enhancer experimental_83640 Neighboring gene arginyl-tRNA synthetase 1 Neighboring gene Neanderthal introgressed variant-containing enhancer experimental_83662 Neighboring gene Sharpr-MPRA regulatory region 5384 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr5:167956617-167957158 Neighboring gene Neanderthal introgressed variant-containing enhancer experimental_83672 Neighboring gene H3K27ac hESC enhancer GRCh37_chr5:167962977-167963477 Neighboring gene solute carrier family 2 member 3 pseudogene 1 Neighboring gene pantothenate kinase 3 Neighboring gene microRNA 103a-1 Neighboring gene microRNA 103b-1

Products Interactant Other Gene Complex Source Pubs Description

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables RNA 2'-O-methyltransferase activity IDA
Inferred from Direct Assay
more info
PubMed 
enables RNA 2'-O-methyltransferase activity IEA
Inferred from Electronic Annotation
more info
 
enables RNA binding IBA
Inferred from Biological aspect of Ancestor
more info
 
enables RNA binding IEA
Inferred from Electronic Annotation
more info
 
enables histone H2AQ104 methyltransferase activity IBA
Inferred from Biological aspect of Ancestor
more info
 
enables methyltransferase activity IEA
Inferred from Electronic Annotation
more info
 
enables rRNA methyltransferase activity IBA
Inferred from Biological aspect of Ancestor
more info
 
enables transferase activity IEA
Inferred from Electronic Annotation
more info
 
Process Evidence Code Pubs
involved_in box C/D sno(s)RNA 3'-end processing IBA
Inferred from Biological aspect of Ancestor
more info
 
involved_in chromatin remodeling IEA
Inferred from Electronic Annotation
more info
 
involved_in mRNA modification NAS
Non-traceable Author Statement
more info
PubMed 
involved_in mRNA stabilization IEA
Inferred from Electronic Annotation
more info
 
involved_in mRNA stabilization ISS
Inferred from Sequence or Structural Similarity
more info
 
involved_in methylation IEA
Inferred from Electronic Annotation
more info
 
involved_in neuron differentiation NAS
Non-traceable Author Statement
more info
PubMed 
involved_in rRNA 2'-O-methylation NAS
Non-traceable Author Statement
more info
PubMed 
involved_in rRNA methylation IBA
Inferred from Biological aspect of Ancestor
more info
 
involved_in rRNA processing IEA
Inferred from Electronic Annotation
more info
 
Component Evidence Code Pubs
is_active_in Cajal body IBA
Inferred from Biological aspect of Ancestor
more info
 
part_of box C/D methylation guide snoRNP complex IBA
Inferred from Biological aspect of Ancestor
more info
 
part_of box C/D methylation guide snoRNP complex IDA
Inferred from Direct Assay
more info
PubMed 
part_of box C/D methylation guide snoRNP complex IEA
Inferred from Electronic Annotation
more info
 
located_in fibrillar center IDA
Inferred from Direct Assay
more info
 
located_in fibrillar center IEA
Inferred from Electronic Annotation
more info
 
is_active_in nucleolus IDA
Inferred from Direct Assay
more info
PubMed 
located_in nucleolus IEA
Inferred from Electronic Annotation
more info
 
located_in nucleolus IPI
Inferred from Physical Interaction
more info
PubMed 
part_of ribonucleoprotein complex IEA
Inferred from Electronic Annotation
more info
 
part_of small-subunit processome IBA
Inferred from Biological aspect of Ancestor
more info
 
Preferred Names
RNA 2'-O-methyltransferase FBLL1
Names
fibrillarin like 1
protein-glutamine methyltransferase
rRNA/tRNA 2'-O-methyltransferase fibrillarin-like protein 1
NP_001342203.1

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

  1. NM_001355274.2NP_001342203.1  RNA 2'-O-methyltransferase FBLL1

    Status: VALIDATED

    Source sequence(s)
    AC020894
    Consensus CDS
    CCDS87345.1
    UniProtKB/Swiss-Prot
    A6NHQ2, R4GMW7
    Related
    ENSP00000473383.1, ENST00000338333.5
    Conserved Domains (1) summary
    PTZ00146
    Location:90331
    PTZ00146; fibrillarin; Provisional

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2025_08

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000005.10 Reference GRCh38.p14 Primary Assembly

    Range
    168529305..168530634
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060929.1 Alternate T2T-CHM13v2.0

    Range
    169064086..169065415
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)