SNORD121B

Summary

SNORD121B (small nucleolar RNA, C/D box 121B, HGNC:33569) is a small nucleolar RNA gene on chromosome 9p13.3.

Predicted to be involved in RNA processing. Predicted to be located in nucleolus.

Source: NCBI Gene 101340252 — RefSeq curated summary.

At a glance

• Gene type: non-coding (snoRNA) — no protein product; not a drug target. Variant/disease associations are omitted (they would be positional, from an overlapping protein-coding gene).

Identifiers

Gene identifiers

Field	Value
HGNC ID	HGNC:33569
Approved symbol	SNORD121B
Name	small nucleolar RNA, C/D box 121B
Location	9p13.3
Locus type	RNA, small nucleolar
Status	Approved
Ensembl gene	ENSG00000238300
Ensembl biotype	snoRNA
Entrez	101340252
RNAcentral	URS000075AF9C — snoRNA, 79 nt, 1 organism(s)

Gene structure

Transcript identifiers

Ensembl transcripts: 1 — 1 snoRNA

ENST00000458838

RefSeq mRNA: 0 — MANE Select: None

Canonical transcript exons

ENST00000458838 — 1 exons

Exon	Start	End
ENSE00001809067	33934296	33934376

Expression profiles

Bgee: expression breadth ubiquitous, 108 present calls, max score 98.98.

Top tissues by expression

108 total, by Bgee expression score (0-100, higher = more expressed):

Tissue	Anatomy ID	Expression score	Quality
sural nerve	UBERON:0015488	98.98	gold quality
skeletal muscle tissue	UBERON:0001134	89.91	gold quality
vermiform appendix	UBERON:0001154	80.94	gold quality
adrenal tissue	UBERON:0018303	80.49	gold quality
prefrontal cortex	UBERON:0000451	80.38	gold quality
endometrium	UBERON:0001295	77.70	gold quality
muscle of leg	UBERON:0001383	75.15	gold quality
liver	UBERON:0002107	75.02	gold quality
gastrocnemius	UBERON:0001388	74.24	gold quality
blood	UBERON:0000178	73.18	gold quality
monocyte	CL:0000576	73.13	gold quality
right adrenal gland cortex	UBERON:0035827	73.04	gold quality
calcaneal tendon	UBERON:0003701	72.95	gold quality
tibial nerve	UBERON:0001323	72.51	gold quality
skin of leg	UBERON:0001511	72.30	gold quality
zone of skin	UBERON:0000014	72.15	gold quality
skin of abdomen	UBERON:0001416	71.92	gold quality
heart left ventricle	UBERON:0002084	71.45	gold quality
adrenal gland	UBERON:0002369	71.44	gold quality
islet of Langerhans	UBERON:0000006	71.41	gold quality
placenta	UBERON:0001987	71.40	gold quality
heart	UBERON:0000948	71.31	gold quality
lymph node	UBERON:0000029	70.78	gold quality
right adrenal gland	UBERON:0001233	70.67	gold quality
left adrenal gland	UBERON:0001234	70.64	gold quality
descending thoracic aorta	UBERON:0002345	70.55	gold quality
stomach	UBERON:0000945	70.45	gold quality
body of pancreas	UBERON:0001150	70.42	gold quality
body of stomach	UBERON:0001161	70.26	gold quality
right ovary	UBERON:0002118	70.23	gold quality

Single-cell (SCXA)

Detected in 1 experiment(s), a significant marker in 0.

Experiment	Marker?	Max mean expression
E-ANND-3	no	0.49

Regulation

Is transcription factor: no

Cross-species orthologs

2 orthologs

Organism	Symbol	Gene ID
mus_musculus	Gm22888	ENSMUSG00000089265
rattus_norvegicus	Snord121b	ENSRNOG00000061024

Paralogs (1): SNORD121A (ENSG00000238886)

Protein

Non-coding RNA — no protein product; not a drug target.

Function

No curated pathway, Gene-Ontology, or interaction data.

Disease & clinical

No curated disease, variant, or cancer-driver associations.

Drugs & pharmacology

No drug or pharmacology data — not an established drug target.