Naja atra

Chinese cobra, or Indian spitting cobra, or Golden spitting cobra

Maximum lifespan

11.7 yr

AnAge record

mtDNA size

17,216 bp

RefSeq NC_011389.1

GC content

41.62%

Whole genome

Non-coding

2,106 bp

D-loop 2,060 bp

Where Chinese cobra, or Indian spitting cobra, or Golden spitting cobra sits among 2,335 species

Whole-genome GC content against maximum lifespan. Chinese cobra, or Indian spitting cobra, or Golden spitting cobra has the 1,460th longest lifespan of them.

This species
Other reptiles
Other classes

Plot other mtDNA features with this species highlighted

Base composition

Whole genome17,216 bp

GC skew (G − C) / (G + C): −0.364
AT skew (A − T) / (A + T): +0.131

Life history

Maximum lifespan: 11.7 years
Adult weight: 1.8 kg

Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 03445)

About this record

Lifespan source: AnAge build 15
Based on: an animal in captivity
Data quality: acceptable, small sample
Licence: Free to use, subject to the Human Ageing Genomic Resources conditions of use
Status: Updated in build 2
In the database since: build 1 (2015-07-01)
Last changed: build 2 (2026-11-13)

Every change against the 2015 build is in the changelog download.

Composition by region

Reference (L) strand as deposited in RefSeq

Whole genome17,216 bp

Protein-coding11,259 bp

12S rRNA933 bp

16S rRNA1,494 bp

All tRNA1,434 bp

D-loop2,060 bp

Genes and regions

Select a column to sort; select a gene to compare it across species

Base composition of Naja atra genes

ND1NADH dehydrogenase subunit 1	964 bp	32.5%	25.9%	11.9%	29.7%	41.60%	−0.426	+0.112
ND2NADH dehydrogenase subunit 2	1,030 bp	37.7%	23.7%	8.9%	29.7%	38.64%	−0.538	+0.228
COX1Cytochrome c oxidase subunit I	1,602 bp	28.0%	26.8%	16.7%	28.5%	45.19%	−0.262	+0.023
COX2Cytochrome c oxidase subunit II	685 bp	33.6%	21.6%	15.9%	28.9%	44.82%	−0.290	+0.217
ATP8ATP synthase F0 subunit 8	165 bp	40.6%	18.8%	10.9%	29.7%	40.61%	−0.463	+0.367
ATP6ATP synthase F0 subunit 6	681 bp	33.5%	26.9%	10.3%	29.4%	39.65%	−0.481	+0.109
COX3Cytochrome c oxidase subunit III	784 bp	28.7%	26.3%	16.3%	28.7%	45.03%	−0.275	+0.044
ND3NADH dehydrogenase subunit 3	343 bp	33.8%	24.2%	10.8%	31.2%	41.98%	−0.486	+0.166
ND4LNADH dehydrogenase subunit 4L	291 bp	33.3%	28.9%	11.7%	26.1%	37.80%	−0.382	+0.072
ND4NADH dehydrogenase subunit 4	1,337 bp	34.3%	24.5%	10.0%	31.2%	41.21%	−0.514	+0.168
ND5NADH dehydrogenase subunit 5	1,773 bp	36.2%	24.6%	10.6%	28.6%	39.20%	−0.459	+0.189
ND6NADH dehydrogenase subunit 6	504 bp	44.2%	15.5%	9.1%	31.2%	40.28%	−0.547	+0.482
CYTBCytochrome b	1,117 bp	30.4%	28.6%	11.3%	29.7%	41.00%	−0.450	+0.032
12S rRNA12S ribosomal RNA	933 bp	37.0%	19.9%	17.8%	25.3%	43.09%	−0.174	+0.299
16S rRNA16S ribosomal RNA	1,494 bp	37.4%	20.4%	16.4%	25.8%	42.17%	−0.222	+0.294
D-loopControl region (D-loop)	2,060 bp	26.7%	33.6%	11.7%	27.9%	39.66%	−0.408	−0.115

Codon usage

Counts per codon, darker is more frequent

Gene

3,756 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F5.3%

UUU78

UUC122

Leu L15.5%

UUA93

UUG19

CUU81

CUC63

CUA285

CUG43

Ile I8.5%

AUU132

AUC189

Met M6.4%

AUA197

AUG44

Val V4.3%

GUU34

GUC32

GUA71

GUG26

Ser S7.2%

UCU48

UCC62

UCA100

UCG13

AGU13

AGC36

Pro P5.4%

CCU21

CCC47

CCA125

CCG10

Thr T11.4%

ACU58

ACC140

ACA217

ACG12

Ala A6.5%

GCU40

GCC105

GCA94

GCG7

Tyr Y2.8%

UAU35

UAC70

His H2.6%

CAU21

CAC75

Gln Q2.6%

CAA78

CAG18

Asn N4.2%

AAU39

AAC117

Lys K2.7%

AAA90

AAG11

Asp D1.6%

GAU18

GAC42

Glu E2.5%

GAA70

GAG24

Cys C0.8%

UGU12

UGC19

Trp W2.6%

UGA80

UGG18

Arg R1.7%

CGU10

CGC10

CGA38

CGG7

Gly G5.1%

GGU35

GGC46

GGA78

GGG32

Stop 0.2%

UAA4

UAG0

AGA1

AGG1

Genome map

39 annotated features in NC_011389.1

Hover, tap or tab to a feature to see its position, length, strand and GC content. Genes and rRNAs open their own pages.

Protein-coding13
rRNA2
tRNA22
D-loop2

Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
Middle ring: GC% of each gene against the whole genome (41.6%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 39 features as a table

Annotated features of Naja atra (NC_011389.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Phe	Transfer RNA	1	63	63 bp	+	–
12S rRNA	Ribosomal RNA	64	996	933 bp	+	43.1%
tRNA-Val	Transfer RNA	997	1,062	66 bp	+	–
16S rRNA	Ribosomal RNA	1,063	2,556	1,494 bp	+	42.2%
ND1	Protein-coding gene	2,557	3,520	964 bp	+	41.6%
tRNA-Ile	Transfer RNA	3,521	3,586	66 bp	+	–
D-loop	Control region	3,587	4,615	1,029 bp	–	39.7%
tRNA-Leu (UUR)	Transfer RNA	4,616	4,688	73 bp	+	–
tRNA-Gln	Transfer RNA	4,689	4,759	71 bp	−	–
tRNA-Met	Transfer RNA	4,760	4,822	63 bp	+	–
ND2	Protein-coding gene	4,823	5,852	1,030 bp	+	38.6%
tRNA-Trp	Transfer RNA	5,853	5,917	65 bp	+	–
tRNA-Ala	Transfer RNA	5,920	5,985	66 bp	−	–
tRNA-Asn	Transfer RNA	5,987	6,059	73 bp	−	–
tRNA-Cys	Transfer RNA	6,097	6,157	61 bp	−	–
tRNA-Tyr	Transfer RNA	6,158	6,220	63 bp	−	–
COX1	Protein-coding gene	6,222	7,823	1,602 bp	+	45.2%
tRNA-Ser (UCN)	Transfer RNA	7,814	7,881	68 bp	−	–
tRNA-Asp	Transfer RNA	7,882	7,945	64 bp	+	–
COX2	Protein-coding gene	7,947	8,631	685 bp	+	44.8%
tRNA-Lys	Transfer RNA	8,632	8,695	64 bp	+	–
ATP8	Protein-coding gene	8,697	8,861	165 bp	+	40.6%
ATP6	Protein-coding gene	8,852	9,532	681 bp	+	39.7%
COX3	Protein-coding gene	9,532	10,315	784 bp	+	45.0%
tRNA-Gly	Transfer RNA	10,316	10,376	61 bp	+	–
ND3	Protein-coding gene	10,377	10,719	343 bp	+	42.0%
tRNA-Arg	Transfer RNA	10,720	10,784	65 bp	+	–
ND4L	Protein-coding gene	10,785	11,075	291 bp	+	37.8%
ND4	Protein-coding gene	11,075	12,411	1,337 bp	+	41.2%
tRNA-His	Transfer RNA	12,412	12,476	65 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	12,479	12,535	57 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	12,533	12,603	71 bp	+	–
ND5	Protein-coding gene	12,605	14,377	1,773 bp	+	39.2%
ND6	Protein-coding gene	14,373	14,876	504 bp	−	40.3%
tRNA-Glu	Transfer RNA	14,877	14,939	63 bp	−	–
CYTB	Protein-coding gene	14,940	16,056	1,117 bp	+	41.0%
tRNA-Thr	Transfer RNA	16,057	16,124	68 bp	+	–
tRNA-Pro	Transfer RNA	16,125	16,185	61 bp	−	–
D-loop	Control region	16,186	17,216	1,031 bp	–	39.7%